diff options
174 files changed, 35546 insertions, 14375 deletions
diff --git a/ZFS.RELEASE b/ZFS.RELEASE index 0960bf493..dd19a8e8d 100644 --- a/ZFS.RELEASE +++ b/ZFS.RELEASE @@ -1 +1 @@ -http://dlc.sun.com/osol/on/downloads/b121/on-src.tar.bz2 +ssh://[email protected]/hg/onnv/onnv-gate/onnv_141 diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c index 292bb519a..ff73072f8 100644 --- a/cmd/zdb/zdb.c +++ b/cmd/zdb/zdb.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <stdio.h> @@ -34,6 +33,9 @@ #include <sys/zap.h> #include <sys/fs/zfs.h> #include <sys/zfs_znode.h> +#include <sys/zfs_sa.h> +#include <sys/sa.h> +#include <sys/sa_impl.h> #include <sys/vdev.h> #include <sys/vdev_impl.h> #include <sys/metaslab_impl.h> @@ -51,10 +53,25 @@ #include <sys/zio_compress.h> #include <sys/zfs_fuid.h> #include <sys/arc.h> +#include <sys/ddt.h> #undef ZFS_MAXNAMELEN #undef verify #include <libzfs.h> +#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ + zio_compress_table[(idx)].ci_name : "UNKNOWN") +#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ + zio_checksum_table[(idx)].ci_name : "UNKNOWN") +#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ + dmu_ot[(idx)].ot_name : "UNKNOWN") +#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : DMU_OT_NUMTYPES) + +#ifndef lint +extern int zfs_recover; +#else +int zfs_recover; +#endif + const char cmdname[] = "zdb"; uint8_t dump_opt[256]; @@ -64,8 +81,6 @@ extern void dump_intent_log(zilog_t *); uint64_t *zopt_object = NULL; int zopt_objects = 0; libzfs_handle_t *g_zfs; -boolean_t zdb_sig_user_data = B_TRUE; -int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; /* * These libumem hooks provide a reasonable set of defaults for the allocator's @@ -87,39 +102,56 @@ static void usage(void) { (void) fprintf(stderr, - "Usage: %s [-udibcsvL] [-U cachefile_path] [-t txg]\n" - "\t [-S user:cksumalg] " - "dataset [object...]\n" - " %s -C [pool]\n" - " %s -l dev\n" - " %s -R pool:vdev:offset:size:flags\n" - " %s [-p path_to_vdev_dir]\n" - " %s -e pool | GUID | devid ...\n", - cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); - - (void) fprintf(stderr, " -u uberblock\n"); - (void) fprintf(stderr, " -d datasets\n"); - (void) fprintf(stderr, " -C cached pool configuration\n"); - (void) fprintf(stderr, " -i intent logs\n"); - (void) fprintf(stderr, " -b block statistics\n"); - (void) fprintf(stderr, " -m metaslabs\n"); - (void) fprintf(stderr, " -c checksum all metadata (twice for " + "Usage: %s [-CumdibcsDvhL] poolname [object...]\n" + " %s [-div] dataset [object...]\n" + " %s -m [-L] poolname [vdev [metaslab...]]\n" + " %s -R poolname vdev:offset:size[:flags]\n" + " %s -S poolname\n" + " %s -l [-u] device\n" + " %s -C\n\n", + cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); + + (void) fprintf(stderr, " Dataset name must include at least one " + "separator character '/' or '@'\n"); + (void) fprintf(stderr, " If dataset name is specified, only that " + "dataset is dumped\n"); + (void) fprintf(stderr, " If object numbers are specified, only " + "those objects are dumped\n\n"); + (void) fprintf(stderr, " Options to control amount of output:\n"); + (void) fprintf(stderr, " -u uberblock\n"); + (void) fprintf(stderr, " -d dataset(s)\n"); + (void) fprintf(stderr, " -i intent logs\n"); + (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); + (void) fprintf(stderr, " -h pool history\n"); + (void) fprintf(stderr, " -b block statistics\n"); + (void) fprintf(stderr, " -m metaslabs\n"); + (void) fprintf(stderr, " -c checksum all metadata (twice for " "all data) blocks\n"); - (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); - (void) fprintf(stderr, " -S <user|all>:<cksum_alg|all> -- " - "dump blkptr signatures\n"); - (void) fprintf(stderr, " -v verbose (applies to all others)\n"); + (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); + (void) fprintf(stderr, " -D dedup statistics\n"); + (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); + (void) fprintf(stderr, " -v verbose (applies to all others)\n"); (void) fprintf(stderr, " -l dump label contents\n"); (void) fprintf(stderr, " -L disable leak tracking (do not " "load spacemaps)\n"); - (void) fprintf(stderr, " -U cachefile_path -- use alternate " - "cachefile\n"); (void) fprintf(stderr, " -R read and display block from a " - "device\n"); - (void) fprintf(stderr, " -e Pool is exported/destroyed/" - "has altroot\n"); - (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n"); - (void) fprintf(stderr, " -t <txg> highest txg to use when " + "device\n\n"); + (void) fprintf(stderr, " Below options are intended for use " + "with other options (except -l):\n"); + (void) fprintf(stderr, " -A ignore assertions (-A), enable " + "panic recovery (-AA) or both (-AAA)\n"); + (void) fprintf(stderr, " -F attempt automatic rewind within " + "safe range of transaction groups\n"); + (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " + "cachefile\n"); + (void) fprintf(stderr, " -X attempt extreme rewind (does not " + "work with dataset)\n"); + (void) fprintf(stderr, " -e pool is exported/destroyed/" + "has altroot/not in a cachefile\n"); + (void) fprintf(stderr, " -p <path> -- use one or more with " + "-e to specify path to vdev dir\n"); + (void) fprintf(stderr, " -P print numbers parsable\n"); + (void) fprintf(stderr, " -t <txg> -- highest txg to use when " "searching for uberblocks\n"); (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " "to make only that option verbose\n"); @@ -146,68 +178,6 @@ fatal(const char *fmt, ...) exit(1); } -static void -dump_nvlist(nvlist_t *list, int indent) -{ - nvpair_t *elem = NULL; - - while ((elem = nvlist_next_nvpair(list, elem)) != NULL) { - switch (nvpair_type(elem)) { - case DATA_TYPE_STRING: - { - char *value; - - VERIFY(nvpair_value_string(elem, &value) == 0); - (void) printf("%*s%s='%s'\n", indent, "", - nvpair_name(elem), value); - } - break; - - case DATA_TYPE_UINT64: - { - uint64_t value; - - VERIFY(nvpair_value_uint64(elem, &value) == 0); - (void) printf("%*s%s=%llu\n", indent, "", - nvpair_name(elem), (u_longlong_t)value); - } - break; - - case DATA_TYPE_NVLIST: - { - nvlist_t *value; - - VERIFY(nvpair_value_nvlist(elem, &value) == 0); - (void) printf("%*s%s\n", indent, "", - nvpair_name(elem)); - dump_nvlist(value, indent + 4); - } - break; - - case DATA_TYPE_NVLIST_ARRAY: - { - nvlist_t **value; - uint_t c, count; - - VERIFY(nvpair_value_nvlist_array(elem, &value, - &count) == 0); - - for (c = 0; c < count; c++) { - (void) printf("%*s%s[%u]\n", indent, "", - nvpair_name(elem), c); - dump_nvlist(value[c], indent + 8); - } - } - break; - - default: - - (void) printf("bad config type %d for %s\n", - nvpair_type(elem), nvpair_name(elem)); - } - } -} - /* ARGSUSED */ static void dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) @@ -227,6 +197,15 @@ dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) nvlist_free(nv); } +static void +zdb_nicenum(uint64_t num, char *buf) +{ + if (dump_opt['P']) + (void) sprintf(buf, "%llu", (longlong_t)num); + else + nicenum(num, buf); +} + const char dump_zap_stars[] = "****************************************"; const int dump_zap_width = sizeof (dump_zap_stars) - 1; @@ -325,6 +304,13 @@ dump_none(objset_t *os, uint64_t object, void *data, size_t size) } /*ARGSUSED*/ +static void +dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) +{ + (void) printf("\tUNKNOWN OBJECT TYPE\n"); +} + +/*ARGSUSED*/ void dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) { @@ -388,6 +374,79 @@ dump_zap(objset_t *os, uint64_t object, void *data, size_t size) /*ARGSUSED*/ static void +dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) +{ + dump_zap_stats(os, object); + /* contents are printed elsewhere, properly decoded */ +} + +/*ARGSUSED*/ +static void +dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) +{ + zap_cursor_t zc; + zap_attribute_t attr; + + dump_zap_stats(os, object); + (void) printf("\n"); + + for (zap_cursor_init(&zc, os, object); + zap_cursor_retrieve(&zc, &attr) == 0; + zap_cursor_advance(&zc)) { + (void) printf("\t\t%s = ", attr.za_name); + if (attr.za_num_integers == 0) { + (void) printf("\n"); + continue; + } + (void) printf(" %llx : [%d:%d:%d]\n", + (u_longlong_t)attr.za_first_integer, + (int)ATTR_LENGTH(attr.za_first_integer), + (int)ATTR_BSWAP(attr.za_first_integer), + (int)ATTR_NUM(attr.za_first_integer)); + } + zap_cursor_fini(&zc); +} + +/*ARGSUSED*/ +static void +dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) +{ + zap_cursor_t zc; + zap_attribute_t attr; + uint16_t *layout_attrs; + int i; + + dump_zap_stats(os, object); + (void) printf("\n"); + + for (zap_cursor_init(&zc, os, object); + zap_cursor_retrieve(&zc, &attr) == 0; + zap_cursor_advance(&zc)) { + (void) printf("\t\t%s = [", attr.za_name); + if (attr.za_num_integers == 0) { + (void) printf("\n"); + continue; + } + + VERIFY(attr.za_integer_length == 2); + layout_attrs = umem_zalloc(attr.za_num_integers * + attr.za_integer_length, UMEM_NOFAIL); + + VERIFY(zap_lookup(os, object, attr.za_name, + attr.za_integer_length, + attr.za_num_integers, layout_attrs) == 0); + + for (i = 0; i != attr.za_num_integers; i++) + (void) printf(" %d ", (int)layout_attrs[i]); + (void) printf("]\n"); + umem_free(layout_attrs, + attr.za_num_integers * attr.za_integer_length); + } + zap_cursor_fini(&zc); +} + +/*ARGSUSED*/ +static void dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) { zap_cursor_t zc; @@ -441,17 +500,17 @@ dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) */ alloc = 0; for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) { - VERIFY(0 == dmu_read(os, smo->smo_object, offset, + VERIFY3U(0, ==, dmu_read(os, smo->smo_object, offset, sizeof (entry), &entry, DMU_READ_PREFETCH)); if (SM_DEBUG_DECODE(entry)) { - (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n", + (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", (u_longlong_t)(offset / sizeof (entry)), ddata[SM_DEBUG_ACTION_DECODE(entry)], (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); } else { - (void) printf("\t\t[%4llu] %c range:" - " %08llx-%08llx size: %06llx\n", + (void) printf("\t [%6llu] %c range:" + " %010llx-%010llx size: %06llx\n", (u_longlong_t)(offset / sizeof (entry)), SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', (u_longlong_t)((SM_OFFSET_DECODE(entry) << @@ -476,14 +535,14 @@ dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) static void dump_metaslab_stats(metaslab_t *msp) { - char maxbuf[5]; + char maxbuf[32]; space_map_t *sm = &msp->ms_map; avl_tree_t *t = sm->sm_pp_root; int free_pct = sm->sm_space * 100 / sm->sm_size; - nicenum(space_map_maxsize(sm), maxbuf); + zdb_nicenum(space_map_maxsize(sm), maxbuf); - (void) printf("\t %20s %10lu %7s %6s %4s %4d%%\n", + (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", "segments", avl_numnodes(t), "maxsize", maxbuf, "freepct", free_pct); } @@ -491,54 +550,86 @@ dump_metaslab_stats(metaslab_t *msp) static void dump_metaslab(metaslab_t *msp) { - char freebuf[5]; - space_map_obj_t *smo = &msp->ms_smo; vdev_t *vd = msp->ms_group->mg_vd; spa_t *spa = vd->vdev_spa; + space_map_t *sm = &msp->ms_map; + space_map_obj_t *smo = &msp->ms_smo; + char freebuf[32]; - nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf); + zdb_nicenum(sm->sm_size - smo->smo_alloc, freebuf); (void) printf( - "\tvdev %5llu offset %12llx spacemap %6llu free %5s\n", - (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start, - (u_longlong_t)smo->smo_object, freebuf); + "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", + (u_longlong_t)(sm->sm_start / sm->sm_size), + (u_longlong_t)sm->sm_start, (u_longlong_t)smo->smo_object, freebuf); - if (dump_opt['m'] > 1) { + if (dump_opt['m'] > 1 && !dump_opt['L']) { mutex_enter(&msp->ms_lock); - VERIFY(space_map_load(&msp->ms_map, zfs_metaslab_ops, - SM_FREE, &msp->ms_smo, spa->spa_meta_objset) == 0); + space_map_load_wait(sm); + if (!sm->sm_loaded) + VERIFY(space_map_load(sm, zfs_metaslab_ops, + SM_FREE, smo, spa->spa_meta_objset) == 0); dump_metaslab_stats(msp); - space_map_unload(&msp->ms_map); + space_map_unload(sm); mutex_exit(&msp->ms_lock); } if (dump_opt['d'] > 5 || dump_opt['m'] > 2) { - ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift)); + ASSERT(sm->sm_size == (1ULL << vd->vdev_ms_shift)); mutex_enter(&msp->ms_lock); - dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map); + dump_spacemap(spa->spa_meta_objset, smo, sm); mutex_exit(&msp->ms_lock); } +} +static void +print_vdev_metaslab_header(vdev_t *vd) +{ + (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", + (u_longlong_t)vd->vdev_id, + "metaslabs", (u_longlong_t)vd->vdev_ms_count, + "offset", "spacemap", "free"); + (void) printf("\t%15s %19s %15s %10s\n", + "---------------", "-------------------", + "---------------", "-------------"); } static void dump_metaslabs(spa_t *spa) { - vdev_t *rvd = spa->spa_root_vdev; - vdev_t *vd; - int c, m; + vdev_t *vd, *rvd = spa->spa_root_vdev; + uint64_t m, c = 0, children = rvd->vdev_children; (void) printf("\nMetaslabs:\n"); - for (c = 0; c < rvd->vdev_children; c++) { - vd = rvd->vdev_child[c]; + if (!dump_opt['d'] && zopt_objects > 0) { + c = zopt_object[0]; - (void) printf("\t%-10s %-19s %-15s %-10s\n", - "vdev", "offset", "spacemap", "free"); - (void) printf("\t%10s %19s %15s %10s\n", - "----------", "-------------------", - "---------------", "-------------"); + if (c >= children) + (void) fatal("bad vdev id: %llu", (u_longlong_t)c); + + if (zopt_objects > 1) { + vd = rvd->vdev_child[c]; + print_vdev_metaslab_header(vd); + + for (m = 1; m < zopt_objects; m++) { + if (zopt_object[m] < vd->vdev_ms_count) + dump_metaslab( + vd->vdev_ms[zopt_object[m]]); + else + (void) fprintf(stderr, "bad metaslab " + "number %llu\n", + (u_longlong_t)zopt_object[m]); + } + (void) printf("\n"); + return; + } + children = c + 1; + } + for (; c < children; c++) { + vd = rvd->vdev_child[c]; + print_vdev_metaslab_header(vd); for (m = 0; m < vd->vdev_ms_count; m++) dump_metaslab(vd->vdev_ms[m]); @@ -547,6 +638,133 @@ dump_metaslabs(spa_t *spa) } static void +dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) +{ + const ddt_phys_t *ddp = dde->dde_phys; + const ddt_key_t *ddk = &dde->dde_key; + char *types[4] = { "ditto", "single", "double", "triple" }; + char blkbuf[BP_SPRINTF_LEN]; + blkptr_t blk; + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { + if (ddp->ddp_phys_birth == 0) + continue; + ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); + sprintf_blkptr(blkbuf, &blk); + (void) printf("index %llx refcnt %llu %s %s\n", + (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, + types[p], blkbuf); + } +} + +static void +dump_dedup_ratio(const ddt_stat_t *dds) +{ + double rL, rP, rD, D, dedup, compress, copies; + + if (dds->dds_blocks == 0) + return; + + rL = (double)dds->dds_ref_lsize; + rP = (double)dds->dds_ref_psize; + rD = (double)dds->dds_ref_dsize; + D = (double)dds->dds_dsize; + + dedup = rD / D; + compress = rL / rP; + copies = rD / rP; + + (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " + "dedup * compress / copies = %.2f\n\n", + dedup, compress, copies, dedup * compress / copies); +} + +static void +dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) +{ + char name[DDT_NAMELEN]; + ddt_entry_t dde; + uint64_t walk = 0; + dmu_object_info_t doi; + uint64_t count, dspace, mspace; + int error; + + error = ddt_object_info(ddt, type, class, &doi); + + if (error == ENOENT) + return; + ASSERT(error == 0); + + count = ddt_object_count(ddt, type, class); + dspace = doi.doi_physical_blocks_512 << 9; + mspace = doi.doi_fill_count * doi.doi_data_block_size; + + ASSERT(count != 0); /* we should have destroyed it */ + + ddt_object_name(ddt, type, class, name); + + (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", + name, + (u_longlong_t)count, + (u_longlong_t)(dspace / count), + (u_longlong_t)(mspace / count)); + + if (dump_opt['D'] < 3) + return; + + zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); + + if (dump_opt['D'] < 4) + return; + + if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) + return; + + (void) printf("%s contents:\n\n", name); + + while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) + dump_dde(ddt, &dde, walk); + + ASSERT(error == ENOENT); + + (void) printf("\n"); +} + +static void +dump_all_ddts(spa_t *spa) +{ + ddt_histogram_t ddh_total = { 0 }; + ddt_stat_t dds_total = { 0 }; + + for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { + ddt_t *ddt = spa->spa_ddt[c]; + for (enum ddt_type type = 0; type < DDT_TYPES; type++) { + for (enum ddt_class class = 0; class < DDT_CLASSES; + class++) { + dump_ddt(ddt, type, class); + } + } + } + + ddt_get_dedup_stats(spa, &dds_total); + + if (dds_total.dds_blocks == 0) { + (void) printf("All DDTs are empty\n"); + return; + } + + (void) printf("\n"); + + if (dump_opt['D'] > 1) { + (void) printf("DDT histogram (aggregated over all DDTs):\n"); + ddt_get_dedup_histogram(spa, &ddh_total); + zpool_dump_ddt(&dds_total, &ddh_total); + } + + dump_dedup_ratio(&dds_total); +} + +static void dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size) { char *prefix = (void *)sm; @@ -566,7 +784,7 @@ dump_dtl(vdev_t *vd, int indent) char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; char prefix[256]; - spa_vdev_state_enter(spa); + spa_vdev_state_enter(spa, SCL_NONE); required = vdev_dtl_required(vd); (void) spa_vdev_state_exit(spa, NULL, 0); @@ -596,6 +814,68 @@ dump_dtl(vdev_t *vd, int indent) dump_dtl(vd->vdev_child[c], indent + 4); } +static void +dump_history(spa_t *spa) +{ + nvlist_t **events = NULL; + char buf[SPA_MAXBLOCKSIZE]; + uint64_t resid, len, off = 0; + uint_t num = 0; + int error; + time_t tsec; + struct tm t; + char tbuf[30]; + char internalstr[MAXPATHLEN]; + + do { + len = sizeof (buf); + + if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { + (void) fprintf(stderr, "Unable to read history: " + "error %d\n", error); + return; + } + + if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) + break; + + off -= resid; + } while (len != 0); + + (void) printf("\nHistory:\n"); + for (int i = 0; i < num; i++) { + uint64_t time, txg, ievent; + char *cmd, *intstr; + + if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, + &time) != 0) + continue; + if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, + &cmd) != 0) { + if (nvlist_lookup_uint64(events[i], + ZPOOL_HIST_INT_EVENT, &ievent) != 0) + continue; + verify(nvlist_lookup_uint64(events[i], + ZPOOL_HIST_TXG, &txg) == 0); + verify(nvlist_lookup_string(events[i], + ZPOOL_HIST_INT_STR, &intstr) == 0); + if (ievent >= LOG_END) + continue; + + (void) snprintf(internalstr, + sizeof (internalstr), + "[internal %s txg:%lld] %s", + zfs_history_event_names[ievent], txg, + intstr); + cmd = internalstr; + } + tsec = time; + (void) localtime_r(&tsec, &t); + (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); + (void) printf("%s %s\n", tbuf, cmd); + } +} + /*ARGSUSED*/ static void dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) @@ -603,35 +883,48 @@ dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) } static uint64_t -blkid2offset(const dnode_phys_t *dnp, int level, uint64_t blkid) +blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) { - if (level < 0) - return (blkid); + if (dnp == NULL) { + ASSERT(zb->zb_level < 0); + if (zb->zb_object == 0) + return (zb->zb_blkid); + return (zb->zb_blkid * BP_GET_LSIZE(bp)); + } + + ASSERT(zb->zb_level >= 0); - return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * + return ((zb->zb_blkid << + (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); } static void -sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas) +sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp) { - dva_t *dva = bp->blk_dva; - int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1; - int i; + const dva_t *dva = bp->blk_dva; + int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; + + if (dump_opt['b'] >= 5) { + sprintf_blkptr(blkbuf, bp); + return; + } blkbuf[0] = '\0'; - for (i = 0; i < ndvas; i++) + for (int i = 0; i < ndvas; i++) (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", (u_longlong_t)DVA_GET_VDEV(&dva[i]), (u_longlong_t)DVA_GET_OFFSET(&dva[i]), (u_longlong_t)DVA_GET_ASIZE(&dva[i])); - (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu", + (void) sprintf(blkbuf + strlen(blkbuf), + "%llxL/%llxP F=%llu B=%llu/%llu", (u_longlong_t)BP_GET_LSIZE(bp), (u_longlong_t)BP_GET_PSIZE(bp), (u_longlong_t)bp->blk_fill, - (u_longlong_t)bp->blk_birth); + (u_longlong_t)bp->blk_birth, + (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); } static void @@ -644,8 +937,7 @@ print_indirect(blkptr_t *bp, const zbookmark_t *zb, ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); - (void) printf("%16llx ", - (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid)); + (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); ASSERT(zb->zb_level >= 0); @@ -657,23 +949,15 @@ print_indirect(blkptr_t *bp, const zbookmark_t *zb, } } - sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); + sprintf_blkptr_compact(blkbuf, bp); (void) printf("%s\n", blkbuf); } -#define SET_BOOKMARK(zb, objset, object, level, blkid) \ -{ \ - (zb)->zb_objset = objset; \ - (zb)->zb_object = object; \ - (zb)->zb_level = level; \ - (zb)->zb_blkid = blkid; \ -} - static int visit_indirect(spa_t *spa, const dnode_phys_t *dnp, blkptr_t *bp, const zbookmark_t *zb) { - int err; + int err = 0; if (bp->blk_birth == 0) return (0); @@ -692,6 +976,7 @@ visit_indirect(spa_t *spa, const dnode_phys_t *dnp, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); if (err) return (err); + ASSERT(buf->b_data); /* recursively visit blocks below this */ cbp = buf->b_data; @@ -724,11 +1009,11 @@ dump_indirect(dnode_t *dn) (void) printf("Indirect blocks:\n"); - SET_BOOKMARK(&czb, dmu_objset_id(&dn->dn_objset->os), + SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), dn->dn_object, dnp->dn_nlevels - 1, 0); for (j = 0; j < dnp->dn_nblkptr; j++) { czb.zb_blkid = j; - (void) visit_indirect(dmu_objset_spa(&dn->dn_objset->os), dnp, + (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, &dnp->dn_blkptr[j], &czb); } @@ -741,7 +1026,7 @@ dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) { dsl_dir_phys_t *dd = data; time_t crtime; - char nice[6]; + char nice[32]; if (dd == NULL) return; @@ -758,15 +1043,15 @@ dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) (u_longlong_t)dd->dd_origin_obj); (void) printf("\t\tchild_dir_zapobj = %llu\n", (u_longlong_t)dd->dd_child_dir_zapobj); - nicenum(dd->dd_used_bytes, nice); + zdb_nicenum(dd->dd_used_bytes, nice); (void) printf("\t\tused_bytes = %s\n", nice); - nicenum(dd->dd_compressed_bytes, nice); + zdb_nicenum(dd->dd_compressed_bytes, nice); (void) printf("\t\tcompressed_bytes = %s\n", nice); - nicenum(dd->dd_uncompressed_bytes, nice); + zdb_nicenum(dd->dd_uncompressed_bytes, nice); (void) printf("\t\tuncompressed_bytes = %s\n", nice); - nicenum(dd->dd_quota, nice); + zdb_nicenum(dd->dd_quota, nice); (void) printf("\t\tquota = %s\n", nice); - nicenum(dd->dd_reserved, nice); + zdb_nicenum(dd->dd_reserved, nice); (void) printf("\t\treserved = %s\n", nice); (void) printf("\t\tprops_zapobj = %llu\n", (u_longlong_t)dd->dd_props_zapobj); @@ -776,7 +1061,7 @@ dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) (u_longlong_t)dd->dd_flags); #define DO(which) \ - nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ + zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) DO(HEAD); DO(SNAP); @@ -792,7 +1077,7 @@ dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) { dsl_dataset_phys_t *ds = data; time_t crtime; - char used[6], compressed[6], uncompressed[6], unique[6]; + char used[32], compressed[32], uncompressed[32], unique[32]; char blkbuf[BP_SPRINTF_LEN]; if (ds == NULL) @@ -800,11 +1085,11 @@ dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) ASSERT(size == sizeof (*ds)); crtime = ds->ds_creation_time; - nicenum(ds->ds_used_bytes, used); - nicenum(ds->ds_compressed_bytes, compressed); - nicenum(ds->ds_uncompressed_bytes, uncompressed); - nicenum(ds->ds_unique_bytes, unique); - sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp); + zdb_nicenum(ds->ds_used_bytes, used); + zdb_nicenum(ds->ds_compressed_bytes, compressed); + zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); + zdb_nicenum(ds->ds_unique_bytes, unique); + sprintf_blkptr(blkbuf, &ds->ds_bp); (void) printf("\t\tdir_obj = %llu\n", (u_longlong_t)ds->ds_dir_obj); @@ -842,63 +1127,88 @@ dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) (void) printf("\t\tbp = %s\n", blkbuf); } +/* ARGSUSED */ +static int +dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + char blkbuf[BP_SPRINTF_LEN]; + + ASSERT(bp->blk_birth != 0); + sprintf_blkptr_compact(blkbuf, bp); + (void) printf("\t%s\n", blkbuf); + return (0); +} + static void -dump_bplist(objset_t *mos, uint64_t object, char *name) +dump_bpobj(bpobj_t *bpo, char *name) { - bplist_t bpl = { 0 }; - blkptr_t blk, *bp = &blk; - uint64_t itor = 0; - char bytes[6]; - char comp[6]; - char uncomp[6]; + char bytes[32]; + char comp[32]; + char uncomp[32]; if (dump_opt['d'] < 3) return; - mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL); - VERIFY(0 == bplist_open(&bpl, mos, object)); - if (bplist_empty(&bpl)) { - bplist_close(&bpl); - mutex_destroy(&bpl.bpl_lock); - return; - } - - nicenum(bpl.bpl_phys->bpl_bytes, bytes); - if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) { - nicenum(bpl.bpl_phys->bpl_comp, comp); - nicenum(bpl.bpl_phys->bpl_uncomp, uncomp); - (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n", - name, (u_longlong_t)bpl.bpl_phys->bpl_entries, + zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); + if (bpo->bpo_havesubobj) { + zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); + zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); + (void) printf("\n %s: %llu local blkptrs, %llu subobjs, " + "%s (%s/%s comp)\n", + name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, + (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, bytes, comp, uncomp); } else { - (void) printf("\n %s: %llu entries, %s\n", - name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes); + (void) printf("\n %s: %llu blkptrs, %s\n", + name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, bytes); } - if (dump_opt['d'] < 5) { - bplist_close(&bpl); - mutex_destroy(&bpl.bpl_lock); + if (dump_opt['d'] < 5) return; - } (void) printf("\n"); - while (bplist_iterate(&bpl, &itor, bp) == 0) { - char blkbuf[BP_SPRINTF_LEN]; + (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); +} - ASSERT(bp->blk_birth != 0); - sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); - (void) printf("\tItem %3llu: %s\n", - (u_longlong_t)itor - 1, blkbuf); - } +static void +dump_deadlist(dsl_deadlist_t *dl) +{ + dsl_deadlist_entry_t *dle; + char bytes[32]; + char comp[32]; + char uncomp[32]; + + if (dump_opt['d'] < 3) + return; - bplist_close(&bpl); - mutex_destroy(&bpl.bpl_lock); + zdb_nicenum(dl->dl_phys->dl_used, bytes); + zdb_nicenum(dl->dl_phys->dl_comp, comp); + zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); + (void) printf("\n Deadlist: %s (%s/%s comp)\n", + bytes, comp, uncomp); + + if (dump_opt['d'] < 4) + return; + + (void) printf("\n"); + + for (dle = avl_first(&dl->dl_tree); dle; + dle = AVL_NEXT(&dl->dl_tree, dle)) { + (void) printf(" mintxg %llu -> obj %llu\n", + (longlong_t)dle->dle_mintxg, + (longlong_t)dle->dle_bpobj.bpo_object); + + if (dump_opt['d'] >= 5) + dump_bpobj(&dle->dle_bpobj, ""); + } } static avl_tree_t idx_tree; static avl_tree_t domain_tree; static boolean_t fuid_table_loaded; +static boolean_t sa_loaded; +sa_attr_type_t *sa_attr_table; static void fuid_table_destroy() @@ -931,12 +1241,12 @@ print_idstr(uint64_t id, const char *id_type) } static void -dump_uidgid(objset_t *os, znode_phys_t *zp) +dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) { uint32_t uid_idx, gid_idx; - uid_idx = FUID_INDEX(zp->zp_uid); - gid_idx = FUID_INDEX(zp->zp_gid); + uid_idx = FUID_INDEX(uid); + gid_idx = FUID_INDEX(gid); /* Load domain table, if not already loaded */ if (!fuid_table_loaded && (uid_idx || gid_idx)) { @@ -951,50 +1261,107 @@ dump_uidgid(objset_t *os, znode_phys_t *zp) fuid_table_loaded = B_TRUE; } - print_idstr(zp->zp_uid, "uid"); - print_idstr(zp->zp_gid, "gid"); + print_idstr(uid, "uid"); + print_idstr(gid, "gid"); } /*ARGSUSED*/ static void dump_znode(objset_t *os, uint64_t object, void *data, size_t size) { - znode_phys_t *zp = data; - time_t z_crtime, z_atime, z_mtime, z_ctime; char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ + sa_handle_t *hdl; + uint64_t xattr, rdev, gen; + uint64_t uid, gid, mode, fsize, parent, links; + uint64_t pflags; + uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; + time_t z_crtime, z_atime, z_mtime, z_ctime; + sa_bulk_attr_t bulk[12]; + int idx = 0; int error; - ASSERT(size >= sizeof (znode_phys_t)); + if (!sa_loaded) { + uint64_t sa_attrs = 0; + uint64_t version; + + VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, + 8, 1, &version) == 0); + if (version >= ZPL_VERSION_SA) { + VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, + 8, 1, &sa_attrs) == 0); + } + sa_attr_table = sa_setup(os, sa_attrs, + zfs_attr_table, ZPL_END); + sa_loaded = B_TRUE; + } + + if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { + (void) printf("Failed to get handle for SA znode\n"); + return; + } + + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, + &links, 8); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, + &mode, 8); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], + NULL, &parent, 8); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, + &fsize, 8); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, + acctm, 16); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, + modtm, 16); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, + crtm, 16); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, + chgtm, 16); + SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, + &pflags, 8); + + if (sa_bulk_lookup(hdl, bulk, idx)) { + (void) sa_handle_destroy(hdl); + return; + } error = zfs_obj_to_path(os, object, path, sizeof (path)); if (error != 0) { (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", (u_longlong_t)object); } - if (dump_opt['d'] < 3) { (void) printf("\t%s\n", path); + (void) sa_handle_destroy(hdl); return; } - z_crtime = (time_t)zp->zp_crtime[0]; - z_atime = (time_t)zp->zp_atime[0]; - z_mtime = (time_t)zp->zp_mtime[0]; - z_ctime = (time_t)zp->zp_ctime[0]; + z_crtime = (time_t)crtm[0]; + z_atime = (time_t)acctm[0]; + z_mtime = (time_t)modtm[0]; + z_ctime = (time_t)chgtm[0]; (void) printf("\tpath %s\n", path); - dump_uidgid(os, zp); + dump_uidgid(os, uid, gid); (void) printf("\tatime %s", ctime(&z_atime)); (void) printf("\tmtime %s", ctime(&z_mtime)); (void) printf("\tctime %s", ctime(&z_ctime)); (void) printf("\tcrtime %s", ctime(&z_crtime)); - (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen); - (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode); - (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size); - (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent); - (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links); - (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr); - (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev); + (void) printf("\tgen %llu\n", (u_longlong_t)gen); + (void) printf("\tmode %llo\n", (u_longlong_t)mode); + (void) printf("\tsize %llu\n", (u_longlong_t)fsize); + (void) printf("\tparent %llu\n", (u_longlong_t)parent); + (void) printf("\tlinks %llu\n", (u_longlong_t)links); + (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); + if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, + sizeof (uint64_t)) == 0) + (void) printf("\txattr %llu\n", (u_longlong_t)xattr); + if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, + sizeof (uint64_t)) == 0) + (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); + sa_handle_destroy(hdl); } /*ARGSUSED*/ @@ -1009,7 +1376,7 @@ dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) { } -static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = { +static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { dump_none, /* unallocated */ dump_zap, /* object directory */ dump_uint64, /* object array */ @@ -1052,6 +1419,19 @@ static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = { dump_zap, /* ZFS user/group used */ dump_zap, /* ZFS user/group quota */ dump_zap, /* snapshot refcount tags */ + dump_ddt_zap, /* DDT ZAP object */ + dump_zap, /* DDT statistics */ + dump_znode, /* SA object */ + dump_zap, /* SA Master Node */ + dump_sa_attrs, /* SA attribute registration */ + dump_sa_layouts, /* SA attribute layouts */ + dump_zap, /* DSL scrub translations */ + dump_none, /* fake dedup BP */ + dump_zap, /* deadlist */ + dump_none, /* deadlist hdr */ + dump_zap, /* dsl clones */ + dump_none, /* bpobj subobjs */ + dump_unknown, /* Unknown type, must be last */ }; static void @@ -1062,18 +1442,20 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) dnode_t *dn; void *bonus = NULL; size_t bsize = 0; - char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6]; + char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; + char bonus_size[32]; char aux[50]; int error; if (*print_header) { - (void) printf("\n Object lvl iblk dblk lsize" - " asize type\n"); + (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", + "Object", "lvl", "iblk", "dblk", "dsize", "lsize", + "%full", "type"); *print_header = 0; } if (object == 0) { - dn = os->os->os_meta_dnode; + dn = os->os_meta_dnode; } else { error = dmu_bonus_hold(os, object, FTAG, &db); if (error) @@ -1085,46 +1467,51 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) } dmu_object_info_from_dnode(dn, &doi); - nicenum(doi.doi_metadata_block_size, iblk); - nicenum(doi.doi_data_block_size, dblk); - nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1), - lsize); - nicenum(doi.doi_physical_blks << 9, asize); - nicenum(doi.doi_bonus_size, bonus_size); + zdb_nicenum(doi.doi_metadata_block_size, iblk); + zdb_nicenum(doi.doi_data_block_size, dblk); + zdb_nicenum(doi.doi_max_offset, lsize); + zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); + zdb_nicenum(doi.doi_bonus_size, bonus_size); + (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * + doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / + doi.doi_max_offset); aux[0] = '\0'; if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", - zio_checksum_table[doi.doi_checksum].ci_name); + ZDB_CHECKSUM_NAME(doi.doi_checksum)); } if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", - zio_compress_table[doi.doi_compress].ci_name); + ZDB_COMPRESS_NAME(doi.doi_compress)); } - (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n", - (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize, - asize, dmu_ot[doi.doi_type].ot_name, aux); + (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", + (u_longlong_t)object, doi.doi_indirection, iblk, dblk, + asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { - (void) printf("%10s %3s %5s %5s %5s %5s %s\n", - "", "", "", "", bonus_size, "bonus", - dmu_ot[doi.doi_bonus_type].ot_name); + (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", + "", "", "", "", "", bonus_size, "bonus", + ZDB_OT_NAME(doi.doi_bonus_type)); } if (verbosity >= 4) { - (void) printf("\tdnode flags: %s%s\n", + (void) printf("\tdnode flags: %s%s%s\n", (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? "USED_BYTES " : "", (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? - "USERUSED_ACCOUNTED " : ""); + "USERUSED_ACCOUNTED " : "", + (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? + "SPILL_BLKPTR" : ""); (void) printf("\tdnode maxblkid: %llu\n", (longlong_t)dn->dn_phys->dn_maxblkid); - object_viewer[doi.doi_bonus_type](os, object, bonus, bsize); - object_viewer[doi.doi_type](os, object, NULL, 0); + object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, + bonus, bsize); + object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); *print_header = 1; } @@ -1146,6 +1533,7 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) } for (;;) { + char segsize[32]; error = dnode_next_offset(dn, 0, &start, minlvl, blkfill, 0); if (error) @@ -1153,7 +1541,7 @@ dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) end = start; error = dnode_next_offset(dn, DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); - nicenum(end - start, segsize); + zdb_nicenum(end - start, segsize); (void) printf("\t\tsegment [%016llx, %016llx)" " size %5s\n", (u_longlong_t)start, (u_longlong_t)end, segsize); @@ -1176,7 +1564,7 @@ dump_dir(objset_t *os) dmu_objset_stats_t dds; uint64_t object, object_count; uint64_t refdbytes, usedobjs, scratch; - char numbuf[8]; + char numbuf[32]; char blkbuf[BP_SPRINTF_LEN + 20]; char osname[MAXNAMELEN]; char *type = "UNKNOWN"; @@ -1191,21 +1579,20 @@ dump_dir(objset_t *os) if (dds.dds_type == DMU_OST_META) { dds.dds_creation_txg = TXG_INITIAL; - usedobjs = os->os->os_rootbp->blk_fill; - refdbytes = os->os->os_spa->spa_dsl_pool-> + usedobjs = os->os_rootbp->blk_fill; + refdbytes = os->os_spa->spa_dsl_pool-> dp_mos_dir->dd_phys->dd_used_bytes; } else { dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); } - ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill); + ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); - nicenum(refdbytes, numbuf); + zdb_nicenum(refdbytes, numbuf); if (verbosity >= 4) { - (void) sprintf(blkbuf + strlen(blkbuf), ", rootbp "); - (void) sprintf_blkptr(blkbuf + strlen(blkbuf), - BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp); + (void) sprintf(blkbuf, ", rootbp "); + (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp); } else { blkbuf[0] = '\0'; } @@ -1218,18 +1605,6 @@ dump_dir(objset_t *os) (u_longlong_t)dds.dds_creation_txg, numbuf, (u_longlong_t)usedobjs, blkbuf); - dump_intent_log(dmu_objset_zil(os)); - - if (dmu_objset_ds(os) != NULL) - dump_bplist(dmu_objset_pool(os)->dp_meta_objset, - dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist"); - - if (verbosity < 2) - return; - - if (os->os->os_rootbp->blk_birth == 0) - return; - if (zopt_objects != 0) { for (i = 0; i < zopt_objects; i++) dump_object(os, zopt_object[i], verbosity, @@ -1238,10 +1613,22 @@ dump_dir(objset_t *os) return; } + if (dump_opt['i'] != 0 || verbosity >= 2) + dump_intent_log(dmu_objset_zil(os)); + + if (dmu_objset_ds(os) != NULL) + dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); + + if (verbosity < 2) + return; + + if (os->os_rootbp->blk_birth == 0) + return; + dump_object(os, 0, verbosity, &print_header); object_count = 0; - if (os->os->os_userused_dnode && - os->os->os_userused_dnode->dn_type != 0) { + if (os->os_userused_dnode && + os->os_userused_dnode->dn_type != 0) { dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); } @@ -1263,11 +1650,11 @@ dump_dir(objset_t *os) } static void -dump_uberblock(uberblock_t *ub) +dump_uberblock(uberblock_t *ub, const char *header, const char *footer) { time_t timestamp = ub->ub_timestamp; - (void) printf("Uberblock\n\n"); + (void) printf(header ? header : ""); (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); @@ -1276,25 +1663,34 @@ dump_uberblock(uberblock_t *ub) (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); if (dump_opt['u'] >= 3) { char blkbuf[BP_SPRINTF_LEN]; - sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp); + sprintf_blkptr(blkbuf, &ub->ub_rootbp); (void) printf("\trootbp = %s\n", blkbuf); } - (void) printf("\n"); + (void) printf(footer ? footer : ""); } static void -dump_config(const char *pool) +dump_config(spa_t *spa) { - spa_t *spa = NULL; + dmu_buf_t *db; + size_t nvsize = 0; + int error = 0; + + + error = dmu_bonus_hold(spa->spa_meta_objset, + spa->spa_config_object, FTAG, &db); - mutex_enter(&spa_namespace_lock); - while ((spa = spa_next(spa)) != NULL) { - if (pool == NULL) - (void) printf("%s\n", spa_name(spa)); - if (pool == NULL || strcmp(pool, spa_name(spa)) == 0) - dump_nvlist(spa->spa_config, 4); + if (error == 0) { + nvsize = *(uint64_t *)db->db_data; + dmu_buf_rele(db, FTAG); + + (void) printf("\nMOS Configuration:\n"); + dump_packed_nvlist(spa->spa_meta_objset, + spa->spa_config_object, (void *)&nvsize, 1); + } else { + (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", + (u_longlong_t)spa->spa_config_object, error); } - mutex_exit(&spa_namespace_lock); } static void @@ -1343,33 +1739,75 @@ dump_cachefile(const char *cachefile) nvlist_free(config); } +#define ZDB_MAX_UB_HEADER_SIZE 32 + +static void +dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) +{ + vdev_t vd; + vdev_t *vdp = &vd; + char header[ZDB_MAX_UB_HEADER_SIZE]; + + vd.vdev_ashift = ashift; + vdp->vdev_top = vdp; + + for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { + uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); + uberblock_t *ub = (void *)((char *)lbl + uoff); + + if (uberblock_verify(ub)) + continue; + (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, + "Uberblock[%d]\n", i); + dump_uberblock(ub, header, ""); + } +} + static void dump_label(const char *dev) { int fd; vdev_label_t label; - char *buf = label.vl_vdev_phys.vp_nvlist; + char *path, *buf = label.vl_vdev_phys.vp_nvlist; size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); struct stat64 statbuf; - uint64_t psize; - int l; + uint64_t psize, ashift; + int len = strlen(dev) + 1; + + if (strncmp(dev, "/dev/dsk/", 9) == 0) { + len++; + path = malloc(len); + (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); + } else { + path = strdup(dev); + } - if ((fd = open64(dev, O_RDONLY)) < 0) { - (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); + if ((fd = open64(path, O_RDONLY)) < 0) { + (void) printf("cannot open '%s': %s\n", path, strerror(errno)); + free(path); exit(1); } if (fstat64(fd, &statbuf) != 0) { - (void) printf("failed to stat '%s': %s\n", dev, + (void) printf("failed to stat '%s': %s\n", path, strerror(errno)); + free(path); + (void) close(fd); + exit(1); + } + + if (S_ISBLK(statbuf.st_mode)) { + (void) printf("cannot use '%s': character device required\n", + path); + free(path); + (void) close(fd); exit(1); } psize = statbuf.st_size; psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); - for (l = 0; l < VDEV_LABELS; l++) { - + for (int l = 0; l < VDEV_LABELS; l++) { nvlist_t *config = NULL; (void) printf("--------------------------------------------\n"); @@ -1384,105 +1822,47 @@ dump_label(const char *dev) if (nvlist_unpack(buf, buflen, &config, 0) != 0) { (void) printf("failed to unpack label %d\n", l); - continue; + ashift = SPA_MINBLOCKSHIFT; + } else { + nvlist_t *vdev_tree = NULL; + + dump_nvlist(config, 4); + if ((nvlist_lookup_nvlist(config, + ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || + (nvlist_lookup_uint64(vdev_tree, + ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) + ashift = SPA_MINBLOCKSHIFT; + nvlist_free(config); } - dump_nvlist(config, 4); - nvlist_free(config); + if (dump_opt['u']) + dump_label_uberblocks(&label, ashift); } + + free(path); + (void) close(fd); } /*ARGSUSED*/ static int -dump_one_dir(char *dsname, void *arg) +dump_one_dir(const char *dsname, void *arg) { int error; objset_t *os; - error = dmu_objset_open(dsname, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &os); + error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); if (error) { - (void) printf("Could not open %s\n", dsname); + (void) printf("Could not open %s, error %d\n", dsname, error); return (0); } dump_dir(os); - dmu_objset_close(os); + dmu_objset_disown(os, FTAG); fuid_table_destroy(); + sa_loaded = B_FALSE; return (0); } -static void -zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) -{ - vdev_t *vd = sm->sm_ppd; - - (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", - (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); -} - -/* ARGSUSED */ -static void -zdb_space_map_load(space_map_t *sm) -{ -} - -static void -zdb_space_map_unload(space_map_t *sm) -{ - space_map_vacate(sm, zdb_leak, sm); -} - -/* ARGSUSED */ -static void -zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size) -{ -} - -static space_map_ops_t zdb_space_map_ops = { - zdb_space_map_load, - zdb_space_map_unload, - NULL, /* alloc */ - zdb_space_map_claim, - NULL, /* free */ - NULL /* maxsize */ -}; - -static void -zdb_leak_init(spa_t *spa) -{ - vdev_t *rvd = spa->spa_root_vdev; - - for (int c = 0; c < rvd->vdev_children; c++) { - vdev_t *vd = rvd->vdev_child[c]; - for (int m = 0; m < vd->vdev_ms_count; m++) { - metaslab_t *msp = vd->vdev_ms[m]; - mutex_enter(&msp->ms_lock); - VERIFY(space_map_load(&msp->ms_map, &zdb_space_map_ops, - SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset) == 0); - msp->ms_map.sm_ppd = vd; - mutex_exit(&msp->ms_lock); - } - } -} - -static void -zdb_leak_fini(spa_t *spa) -{ - vdev_t *rvd = spa->spa_root_vdev; - - for (int c = 0; c < rvd->vdev_children; c++) { - vdev_t *vd = rvd->vdev_child[c]; - for (int m = 0; m < vd->vdev_ms_count; m++) { - metaslab_t *msp = vd->vdev_ms[m]; - mutex_enter(&msp->ms_lock); - space_map_unload(&msp->ms_map); - mutex_exit(&msp->ms_lock); - } - } -} - /* - * Verify that the sum of the sizes of all blocks in the pool adds up - * to the SPA's sa_alloc total. + * Block statistics. */ typedef struct zdb_blkstats { uint64_t zb_asize; @@ -1491,24 +1871,45 @@ typedef struct zdb_blkstats { uint64_t zb_count; } zdb_blkstats_t; -#define DMU_OT_DEFERRED DMU_OT_NONE -#define DMU_OT_TOTAL DMU_OT_NUMTYPES +/* + * Extended object types to report deferred frees and dedup auto-ditto blocks. + */ +#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) +#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) +#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 2) + +static char *zdb_ot_extname[] = { + "deferred free", + "dedup ditto", + "Total", +}; #define ZB_TOTAL DN_MAX_LEVELS typedef struct zdb_cb { - zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1]; + zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; + uint64_t zcb_dedup_asize; + uint64_t zcb_dedup_blocks; uint64_t zcb_errors[256]; int zcb_readfails; int zcb_haderrors; + spa_t *zcb_spa; } zdb_cb_t; static void -zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type) +zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, + dmu_object_type_t type) { + uint64_t refcnt = 0; + + ASSERT(type < ZDB_OT_TOTAL); + + if (zilog && zil_bp_tree_add(zilog, bp) != 0) + return; + for (int i = 0; i < 4; i++) { int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; - int t = (i & 1) ? type : DMU_OT_TOTAL; + int t = (i & 1) ? type : ZDB_OT_TOTAL; zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; zb->zb_asize += BP_GET_ASIZE(bp); @@ -1517,127 +1918,258 @@ zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type) zb->zb_count++; } - if (dump_opt['S']) { - boolean_t print_sig; - - print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 && - BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS); - - if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg) - print_sig = B_FALSE; - - if (print_sig) { - (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t" - "%llx:%llx:%llx:%llx\n", - (u_longlong_t)BP_GET_LEVEL(bp), - (longlong_t)BP_GET_PSIZE(bp), - (longlong_t)BP_GET_NDVAS(bp), - dmu_ot[BP_GET_TYPE(bp)].ot_name, - zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, - zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, - (u_longlong_t)bp->blk_cksum.zc_word[0], - (u_longlong_t)bp->blk_cksum.zc_word[1], - (u_longlong_t)bp->blk_cksum.zc_word[2], - (u_longlong_t)bp->blk_cksum.zc_word[3]); + if (dump_opt['L']) + return; + + if (BP_GET_DEDUP(bp)) { + ddt_t *ddt; + ddt_entry_t *dde; + + ddt = ddt_select(zcb->zcb_spa, bp); + ddt_enter(ddt); + dde = ddt_lookup(ddt, bp, B_FALSE); + + if (dde == NULL) { + refcnt = 0; + } else { + ddt_phys_t *ddp = ddt_phys_select(dde, bp); + ddt_phys_decref(ddp); + refcnt = ddp->ddp_refcnt; + if (ddt_phys_total_refcnt(dde) == 0) + ddt_remove(ddt, dde); } + ddt_exit(ddt); } - if (!dump_opt['L']) - VERIFY(zio_wait(zio_claim(NULL, spa, spa_first_txg(spa), bp, - NULL, NULL, ZIO_FLAG_MUSTSUCCEED)) == 0); + VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, + refcnt ? 0 : spa_first_txg(zcb->zcb_spa), + bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); } +/* ARGSUSED */ static int -zdb_blkptr_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, - const dnode_phys_t *dnp, void *arg) +zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, arc_buf_t *pbuf, + const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) { zdb_cb_t *zcb = arg; char blkbuf[BP_SPRINTF_LEN]; dmu_object_type_t type; - boolean_t is_l0_metadata; + boolean_t is_metadata; if (bp == NULL) return (0); type = BP_GET_TYPE(bp); - zdb_count_block(spa, zcb, bp, type); + zdb_count_block(zcb, zilog, bp, type); - /* - * if we do metadata-only checksumming there's no need to checksum - * indirect blocks here because it is done during traverse - */ - is_l0_metadata = (BP_GET_LEVEL(bp) == 0 && type < DMU_OT_NUMTYPES && - dmu_ot[type].ot_metadata); + is_metadata = (BP_GET_LEVEL(bp) != 0 || dmu_ot[type].ot_metadata); - if (dump_opt['c'] > 1 || dump_opt['S'] || - (dump_opt['c'] && is_l0_metadata)) { - int ioerr, size; - void *data; + if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { + int ioerr; + size_t size = BP_GET_PSIZE(bp); + void *data = malloc(size); + int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; + + /* If it's an intent log block, failure is expected. */ + if (zb->zb_level == ZB_ZIL_LEVEL) + flags |= ZIO_FLAG_SPECULATIVE; - size = BP_GET_LSIZE(bp); - data = malloc(size); ioerr = zio_wait(zio_read(NULL, spa, bp, data, size, - NULL, NULL, ZIO_PRIORITY_ASYNC_READ, - ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB, zb)); + NULL, NULL, ZIO_PRIORITY_ASYNC_READ, flags, zb)); + free(data); - /* We expect io errors on intent log */ - if (ioerr && type != DMU_OT_INTENT_LOG) { + if (ioerr && !(flags & ZIO_FLAG_SPECULATIVE)) { zcb->zcb_haderrors = 1; zcb->zcb_errors[ioerr]++; if (dump_opt['b'] >= 2) - sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); + sprintf_blkptr(blkbuf, bp); else blkbuf[0] = '\0'; - if (!dump_opt['S']) { - (void) printf("zdb_blkptr_cb: " - "Got error %d reading " - "<%llu, %llu, %lld, %llx> %s -- skipping\n", - ioerr, - (u_longlong_t)zb->zb_objset, - (u_longlong_t)zb->zb_object, - (u_longlong_t)zb->zb_level, - (u_longlong_t)zb->zb_blkid, - blkbuf); - } + (void) printf("zdb_blkptr_cb: " + "Got error %d reading " + "<%llu, %llu, %lld, %llx> %s -- skipping\n", + ioerr, + (u_longlong_t)zb->zb_objset, + (u_longlong_t)zb->zb_object, + (u_longlong_t)zb->zb_level, + (u_longlong_t)zb->zb_blkid, + blkbuf); } } zcb->zcb_readfails = 0; if (dump_opt['b'] >= 4) { - sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); - (void) printf("objset %llu object %llu offset 0x%llx %s\n", + sprintf_blkptr(blkbuf, bp); + (void) printf("objset %llu object %llu " + "level %lld offset 0x%llx %s\n", (u_longlong_t)zb->zb_objset, (u_longlong_t)zb->zb_object, - (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid), + (longlong_t)zb->zb_level, + (u_longlong_t)blkid2offset(dnp, bp, zb), blkbuf); } return (0); } +static void +zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) +{ + vdev_t *vd = sm->sm_ppd; + + (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", + (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); +} + +/* ARGSUSED */ +static void +zdb_space_map_load(space_map_t *sm) +{ +} + +static void +zdb_space_map_unload(space_map_t *sm) +{ + space_map_vacate(sm, zdb_leak, sm); +} + +/* ARGSUSED */ +static void +zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size) +{ +} + +static space_map_ops_t zdb_space_map_ops = { + zdb_space_map_load, + zdb_space_map_unload, + NULL, /* alloc */ + zdb_space_map_claim, + NULL, /* free */ + NULL /* maxsize */ +}; + +static void +zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) +{ + ddt_bookmark_t ddb = { 0 }; + ddt_entry_t dde; + int error; + + while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { + blkptr_t blk; + ddt_phys_t *ddp = dde.dde_phys; + + if (ddb.ddb_class == DDT_CLASS_UNIQUE) + return; + + ASSERT(ddt_phys_total_refcnt(&dde) > 1); + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { + if (ddp->ddp_phys_birth == 0) + continue; + ddt_bp_create(ddb.ddb_checksum, + &dde.dde_key, ddp, &blk); + if (p == DDT_PHYS_DITTO) { + zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); + } else { + zcb->zcb_dedup_asize += + BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); + zcb->zcb_dedup_blocks++; + } + } + if (!dump_opt['L']) { + ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; + ddt_enter(ddt); + VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); + ddt_exit(ddt); + } + } + + ASSERT(error == ENOENT); +} + +static void +zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) +{ + zcb->zcb_spa = spa; + + if (!dump_opt['L']) { + vdev_t *rvd = spa->spa_root_vdev; + for (int c = 0; c < rvd->vdev_children; c++) { + vdev_t *vd = rvd->vdev_child[c]; + for (int m = 0; m < vd->vdev_ms_count; m++) { + metaslab_t *msp = vd->vdev_ms[m]; + mutex_enter(&msp->ms_lock); + space_map_unload(&msp->ms_map); + VERIFY(space_map_load(&msp->ms_map, + &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo, + spa->spa_meta_objset) == 0); + msp->ms_map.sm_ppd = vd; + mutex_exit(&msp->ms_lock); + } + } + } + + spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); + + zdb_ddt_leak_init(spa, zcb); + + spa_config_exit(spa, SCL_CONFIG, FTAG); +} + +static void +zdb_leak_fini(spa_t *spa) +{ + if (!dump_opt['L']) { + vdev_t *rvd = spa->spa_root_vdev; + for (int c = 0; c < rvd->vdev_children; c++) { + vdev_t *vd = rvd->vdev_child[c]; + for (int m = 0; m < vd->vdev_ms_count; m++) { + metaslab_t *msp = vd->vdev_ms[m]; + mutex_enter(&msp->ms_lock); + space_map_unload(&msp->ms_map); + mutex_exit(&msp->ms_lock); + } + } + } +} + +/* ARGSUSED */ +static int +count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + zdb_cb_t *zcb = arg; + + if (dump_opt['b'] >= 4) { + char blkbuf[BP_SPRINTF_LEN]; + sprintf_blkptr(blkbuf, bp); + (void) printf("[%s] %s\n", + "deferred free", blkbuf); + } + zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); + return (0); +} + static int dump_block_stats(spa_t *spa) { zdb_cb_t zcb = { 0 }; zdb_blkstats_t *zb, *tzb; - uint64_t alloc, space, logalloc; - vdev_t *rvd = spa->spa_root_vdev; + uint64_t norm_alloc, norm_space, total_alloc, total_found; + int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; int leaks = 0; - int c, e; - if (!dump_opt['S']) { - (void) printf("\nTraversing all blocks %s%s%s%s%s...\n", - (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", - (dump_opt['c'] == 1) ? "metadata " : "", - dump_opt['c'] ? "checksums " : "", - (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", - !dump_opt['L'] ? "nothing leaked " : ""); - } + (void) printf("\nTraversing all blocks %s%s%s%s%s...\n", + (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", + (dump_opt['c'] == 1) ? "metadata " : "", + dump_opt['c'] ? "checksums " : "", + (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", + !dump_opt['L'] ? "nothing leaked " : ""); /* * Load all space maps as SM_ALLOC maps, then traverse the pool @@ -1647,39 +2179,25 @@ dump_block_stats(spa_t *spa) * it's not part of any space map) is a double allocation, * reference to a freed block, or an unclaimed log block. */ - if (!dump_opt['L']) - zdb_leak_init(spa); + zdb_leak_init(spa, &zcb); /* * If there's a deferred-free bplist, process that first. */ - if (spa->spa_sync_bplist_obj != 0) { - bplist_t *bpl = &spa->spa_sync_bplist; - blkptr_t blk; - uint64_t itor = 0; - - VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, - spa->spa_sync_bplist_obj)); - - while (bplist_iterate(bpl, &itor, &blk) == 0) { - if (dump_opt['b'] >= 4) { - char blkbuf[BP_SPRINTF_LEN]; - sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk); - (void) printf("[%s] %s\n", - "deferred free", blkbuf); - } - zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED); - } + (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, + count_block_cb, &zcb, NULL); + (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, + count_block_cb, &zcb, NULL); - bplist_close(bpl); - } + if (dump_opt['c'] > 1) + flags |= TRAVERSE_PREFETCH_DATA; - zcb.zcb_haderrors |= traverse_pool(spa, zdb_blkptr_cb, &zcb); + zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); - if (zcb.zcb_haderrors && !dump_opt['S']) { + if (zcb.zcb_haderrors) { (void) printf("\nError counts:\n\n"); (void) printf("\t%5s %s\n", "errno", "count"); - for (e = 0; e < 256; e++) { + for (int e = 0; e < 256; e++) { if (zcb.zcb_errors[e] != 0) { (void) printf("\t%5d %llu\n", e, (u_longlong_t)zcb.zcb_errors[e]); @@ -1690,43 +2208,27 @@ dump_block_stats(spa_t *spa) /* * Report any leaked segments. */ - if (!dump_opt['L']) - zdb_leak_fini(spa); - - /* - * If we're interested in printing out the blkptr signatures, - * return now as we don't print out anything else (including - * errors and leaks). - */ - if (dump_opt['S']) - return (zcb.zcb_haderrors ? 3 : 0); - - alloc = spa_get_alloc(spa); - space = spa_get_space(spa); + zdb_leak_fini(spa); - /* - * Log blocks allocated from a separate log device don't count - * as part of the normal pool space; factor them in here. - */ - logalloc = 0; + tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; - for (c = 0; c < rvd->vdev_children; c++) - if (rvd->vdev_child[c]->vdev_islog) - logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc; + norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); + norm_space = metaslab_class_get_space(spa_normal_class(spa)); - tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL]; + total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); + total_found = tzb->zb_asize - zcb.zcb_dedup_asize; - if (tzb->zb_asize == alloc + logalloc) { + if (total_found == total_alloc) { if (!dump_opt['L']) (void) printf("\n\tNo leaks (block sum matches space" " maps exactly)\n"); } else { (void) printf("block traversal size %llu != alloc %llu " "(%s %lld)\n", - (u_longlong_t)tzb->zb_asize, - (u_longlong_t)alloc + logalloc, + (u_longlong_t)total_found, + (u_longlong_t)total_alloc, (dump_opt['L']) ? "unreachable" : "leaked", - (longlong_t)(alloc + logalloc - tzb->zb_asize)); + (longlong_t)(total_alloc - total_found)); leaks = 1; } @@ -1736,33 +2238,41 @@ dump_block_stats(spa_t *spa) (void) printf("\n"); (void) printf("\tbp count: %10llu\n", (u_longlong_t)tzb->zb_count); - (void) printf("\tbp logical: %10llu\t avg: %6llu\n", + (void) printf("\tbp logical: %10llu avg: %6llu\n", (u_longlong_t)tzb->zb_lsize, (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); - (void) printf("\tbp physical: %10llu\t avg:" - " %6llu\tcompression: %6.2f\n", + (void) printf("\tbp physical: %10llu avg:" + " %6llu compression: %6.2f\n", (u_longlong_t)tzb->zb_psize, (u_longlong_t)(tzb->zb_psize / tzb->zb_count), (double)tzb->zb_lsize / tzb->zb_psize); - (void) printf("\tbp allocated: %10llu\t avg:" - " %6llu\tcompression: %6.2f\n", + (void) printf("\tbp allocated: %10llu avg:" + " %6llu compression: %6.2f\n", (u_longlong_t)tzb->zb_asize, (u_longlong_t)(tzb->zb_asize / tzb->zb_count), (double)tzb->zb_lsize / tzb->zb_asize); - (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n", - (u_longlong_t)alloc, 100.0 * alloc / space); + (void) printf("\tbp deduped: %10llu ref>1:" + " %6llu deduplication: %6.2f\n", + (u_longlong_t)zcb.zcb_dedup_asize, + (u_longlong_t)zcb.zcb_dedup_blocks, + (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); + (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", + (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); if (dump_opt['b'] >= 2) { int l, t, level; (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" "\t avg\t comp\t%%Total\tType\n"); - for (t = 0; t <= DMU_OT_NUMTYPES; t++) { - char csize[6], lsize[6], psize[6], asize[6], avg[6]; + for (t = 0; t <= ZDB_OT_TOTAL; t++) { + char csize[32], lsize[32], psize[32], asize[32]; + char avg[32]; char *typename; - typename = t == DMU_OT_DEFERRED ? "deferred free" : - t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name; + if (t < DMU_OT_NUMTYPES) + typename = dmu_ot[t].ot_name; + else + typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { (void) printf("%6s\t%5s\t%5s\t%5s" @@ -1792,11 +2302,11 @@ dump_block_stats(spa_t *spa) zcb.zcb_type[ZB_TOTAL][t].zb_asize) continue; - nicenum(zb->zb_count, csize); - nicenum(zb->zb_lsize, lsize); - nicenum(zb->zb_psize, psize); - nicenum(zb->zb_asize, asize); - nicenum(zb->zb_asize / zb->zb_count, avg); + zdb_nicenum(zb->zb_count, csize); + zdb_nicenum(zb->zb_lsize, lsize); + zdb_nicenum(zb->zb_psize, psize); + zdb_nicenum(zb->zb_asize, asize); + zdb_nicenum(zb->zb_asize / zb->zb_count, avg); (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" "\t%5.2f\t%6.2f\t", @@ -1824,36 +2334,157 @@ dump_block_stats(spa_t *spa) return (0); } +typedef struct zdb_ddt_entry { + ddt_key_t zdde_key; + uint64_t zdde_ref_blocks; + uint64_t zdde_ref_lsize; + uint64_t zdde_ref_psize; + uint64_t zdde_ref_dsize; + avl_node_t zdde_node; +} zdb_ddt_entry_t; + +/* ARGSUSED */ +static int +zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, + arc_buf_t *pbuf, const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) +{ + avl_tree_t *t = arg; + avl_index_t where; + zdb_ddt_entry_t *zdde, zdde_search; + + if (bp == NULL) + return (0); + + if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { + (void) printf("traversing objset %llu, %llu objects, " + "%lu blocks so far\n", + (u_longlong_t)zb->zb_objset, + (u_longlong_t)bp->blk_fill, + avl_numnodes(t)); + } + + if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || + BP_GET_LEVEL(bp) > 0 || dmu_ot[BP_GET_TYPE(bp)].ot_metadata) + return (0); + + ddt_key_fill(&zdde_search.zdde_key, bp); + + zdde = avl_find(t, &zdde_search, &where); + + if (zdde == NULL) { + zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); + zdde->zdde_key = zdde_search.zdde_key; + avl_insert(t, zdde, where); + } + + zdde->zdde_ref_blocks += 1; + zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); + zdde->zdde_ref_psize += BP_GET_PSIZE(bp); + zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); + + return (0); +} + +static void +dump_simulated_ddt(spa_t *spa) +{ + avl_tree_t t; + void *cookie = NULL; + zdb_ddt_entry_t *zdde; + ddt_histogram_t ddh_total = { 0 }; + ddt_stat_t dds_total = { 0 }; + + avl_create(&t, ddt_entry_compare, + sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); + + spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); + + (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, + zdb_ddt_add_cb, &t); + + spa_config_exit(spa, SCL_CONFIG, FTAG); + + while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { + ddt_stat_t dds; + uint64_t refcnt = zdde->zdde_ref_blocks; + ASSERT(refcnt != 0); + + dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; + dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; + dds.dds_psize = zdde->zdde_ref_psize / refcnt; + dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; + + dds.dds_ref_blocks = zdde->zdde_ref_blocks; + dds.dds_ref_lsize = zdde->zdde_ref_lsize; + dds.dds_ref_psize = zdde->zdde_ref_psize; + dds.dds_ref_dsize = zdde->zdde_ref_dsize; + + ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); + + umem_free(zdde, sizeof (*zdde)); + } + + avl_destroy(&t); + + ddt_histogram_stat(&dds_total, &ddh_total); + + (void) printf("Simulated DDT histogram:\n"); + + zpool_dump_ddt(&dds_total, &ddh_total); + + dump_dedup_ratio(&dds_total); +} + static void dump_zpool(spa_t *spa) { dsl_pool_t *dp = spa_get_dsl(spa); int rc = 0; + if (dump_opt['S']) { + dump_simulated_ddt(spa); + return; + } + + if (!dump_opt['e'] && dump_opt['C'] > 1) { + (void) printf("\nCached configuration:\n"); + dump_nvlist(spa->spa_config, 8); + } + + if (dump_opt['C']) + dump_config(spa); + if (dump_opt['u']) - dump_uberblock(&spa->spa_uberblock); + dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); + + if (dump_opt['D']) + dump_all_ddts(spa); + + if (dump_opt['d'] > 2 || dump_opt['m']) + dump_metaslabs(spa); - if (dump_opt['d'] || dump_opt['i'] || dump_opt['m']) { + if (dump_opt['d'] || dump_opt['i']) { dump_dir(dp->dp_meta_objset); if (dump_opt['d'] >= 3) { - dump_bplist(dp->dp_meta_objset, - spa->spa_sync_bplist_obj, "Deferred frees"); + dump_bpobj(&spa->spa_deferred_bpobj, "Deferred frees"); + if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { + dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, + "Pool frees"); + } dump_dtl(spa->spa_root_vdev, 0); } - - if (dump_opt['d'] >= 3 || dump_opt['m']) - dump_metaslabs(spa); - - (void) dmu_objset_find(spa_name(spa), dump_one_dir, NULL, - DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); + (void) dmu_objset_find(spa_name(spa), dump_one_dir, + NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); } - - if (dump_opt['b'] || dump_opt['c'] || dump_opt['S']) + if (dump_opt['b'] || dump_opt['c']) rc = dump_block_stats(spa); if (dump_opt['s']) show_pool_stats(spa); + if (dump_opt['h']) + dump_history(spa); + if (rc != 0) exit(rc); } @@ -1872,51 +2503,13 @@ int flagbits[256]; static void zdb_print_blkptr(blkptr_t *bp, int flags) { - dva_t *dva = bp->blk_dva; - int d; + char blkbuf[BP_SPRINTF_LEN]; if (flags & ZDB_FLAG_BSWAP) byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); - /* - * Super-ick warning: This code is also duplicated in - * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code - * replication, too. - */ - for (d = 0; d < BP_GET_NDVAS(bp); d++) { - (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d, - (longlong_t)DVA_GET_VDEV(&dva[d]), - (longlong_t)DVA_GET_OFFSET(&dva[d])); - (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t" - "ASIZE: %llx\n", d, - DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE", - (longlong_t)DVA_GET_GRID(&dva[d]), - (longlong_t)DVA_GET_ASIZE(&dva[d])); - (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d, - (u_longlong_t)DVA_GET_VDEV(&dva[d]), - (longlong_t)DVA_GET_OFFSET(&dva[d]), - (longlong_t)BP_GET_PSIZE(bp), - BP_SHOULD_BYTESWAP(bp) ? "e" : "", - !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ? - "d" : "", - DVA_GET_GANG(&dva[d]) ? "g" : "", - BP_GET_COMPRESS(bp) != 0 ? "d" : ""); - } - (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n", - (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp)); - (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n", - BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG", - dmu_ot[BP_GET_TYPE(bp)].ot_name); - (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n", - (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp), - (u_longlong_t)bp->blk_fill); - (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n", - zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, - zio_compress_table[BP_GET_COMPRESS(bp)].ci_name); - (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n", - (u_longlong_t)bp->blk_cksum.zc_word[0], - (u_longlong_t)bp->blk_cksum.zc_word[1], - (u_longlong_t)bp->blk_cksum.zc_word[2], - (u_longlong_t)bp->blk_cksum.zc_word[3]); + + sprintf_blkptr(blkbuf, bp); + (void) printf("%s\n", blkbuf); } static void @@ -1939,7 +2532,7 @@ zdb_dump_block_raw(void *buf, uint64_t size, int flags) { if (flags & ZDB_FLAG_BSWAP) byteswap_uint64_array(buf, size); - (void) write(2, buf, size); + (void) write(1, buf, size); } static void @@ -2042,31 +2635,30 @@ name: * flags - A string of characters specifying options * b: Decode a blkptr at given offset within block * *c: Calculate and display checksums - * *d: Decompress data before dumping + * d: Decompress data before dumping * e: Byteswap data before dumping - * *g: Display data as a gang block header - * *i: Display as an indirect block + * g: Display data as a gang block header + * i: Display as an indirect block * p: Do I/O to physical offset * r: Dump raw data to stdout * * * = not yet implemented */ static void -zdb_read_block(char *thing, spa_t **spap) +zdb_read_block(char *thing, spa_t *spa) { - spa_t *spa = *spap; + blkptr_t blk, *bp = &blk; + dva_t *dva = bp->blk_dva; int flags = 0; - uint64_t offset = 0, size = 0, blkptr_offset = 0; + uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; zio_t *zio; vdev_t *vd; - void *buf; - char *s, *p, *dup, *pool, *vdev, *flagstr; - int i, error, zio_flags; + void *pbuf, *lbuf, *buf; + char *s, *p, *dup, *vdev, *flagstr; + int i, error; dup = strdup(thing); s = strtok(dup, ":"); - pool = s ? s : ""; - s = strtok(NULL, ":"); vdev = s ? s : ""; s = strtok(NULL, ":"); offset = strtoull(s ? s : "", NULL, 16); @@ -2100,7 +2692,7 @@ zdb_read_block(char *thing, spa_t **spap) flags |= bit; /* If it's not something with an argument, keep going */ - if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS | + if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_PRINT_BLKPTR)) == 0) continue; @@ -2115,16 +2707,6 @@ zdb_read_block(char *thing, spa_t **spap) } } - if (spa == NULL || strcmp(spa_name(spa), pool) != 0) { - if (spa) - spa_close(spa, (void *)zdb_read_block); - error = spa_open(pool, spap, (void *)zdb_read_block); - if (error) - fatal("Failed to open pool '%s': %s", - pool, strerror(error)); - spa = *spap; - } - vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); if (vd == NULL) { (void) printf("***Invalid vdev: %s\n", vdev); @@ -2132,22 +2714,58 @@ zdb_read_block(char *thing, spa_t **spap) return; } else { if (vd->vdev_path) - (void) printf("Found vdev: %s\n", vd->vdev_path); + (void) fprintf(stderr, "Found vdev: %s\n", + vd->vdev_path); else - (void) printf("Found vdev type: %s\n", + (void) fprintf(stderr, "Found vdev type: %s\n", vd->vdev_ops->vdev_op_type); } - buf = umem_alloc(size, UMEM_NOFAIL); + psize = size; + lsize = size; - zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | - ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY; + pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); + lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); + + BP_ZERO(bp); + + DVA_SET_VDEV(&dva[0], vd->vdev_id); + DVA_SET_OFFSET(&dva[0], offset); + DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); + DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); + + BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); + + BP_SET_LSIZE(bp, lsize); + BP_SET_PSIZE(bp, psize); + BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); + BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); + BP_SET_TYPE(bp, DMU_OT_NONE); + BP_SET_LEVEL(bp, 0); + BP_SET_DEDUP(bp, 0); + BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); zio = zio_root(spa, NULL, NULL, 0); - /* XXX todo - cons up a BP so RAID-Z will be happy */ - zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size, - ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL)); + + if (vd == vd->vdev_top) { + /* + * Treat this as a normal block read. + */ + zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, + ZIO_PRIORITY_SYNC_READ, + ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); + } else { + /* + * Treat this as a vdev child I/O. + */ + zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, + ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, + ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | + ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | + ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); + } + error = zio_wait(zio); spa_config_exit(spa, SCL_STATE, FTAG); @@ -2156,6 +2774,52 @@ zdb_read_block(char *thing, spa_t **spap) goto out; } + if (flags & ZDB_FLAG_DECOMPRESS) { + /* + * We don't know how the data was compressed, so just try + * every decompress function at every inflated blocksize. + */ + enum zio_compress c; + void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); + void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); + + bcopy(pbuf, pbuf2, psize); + + VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, + SPA_MAXBLOCKSIZE - psize) == 0); + + VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, + SPA_MAXBLOCKSIZE - psize) == 0); + + for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; + lsize -= SPA_MINBLOCKSIZE) { + for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { + if (zio_decompress_data(c, pbuf, lbuf, + psize, lsize) == 0 && + zio_decompress_data(c, pbuf2, lbuf2, + psize, lsize) == 0 && + bcmp(lbuf, lbuf2, lsize) == 0) + break; + } + if (c != ZIO_COMPRESS_FUNCTIONS) + break; + lsize -= SPA_MINBLOCKSIZE; + } + + umem_free(pbuf2, SPA_MAXBLOCKSIZE); + umem_free(lbuf2, SPA_MAXBLOCKSIZE); + + if (lsize <= psize) { + (void) printf("Decompress of %s failed\n", thing); + goto out; + } + buf = lbuf; + size = lsize; + } else { + buf = pbuf; + size = psize; + } + if (flags & ZDB_FLAG_PRINT_BLKPTR) zdb_print_blkptr((blkptr_t *)(void *) ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); @@ -2170,134 +2834,92 @@ zdb_read_block(char *thing, spa_t **spap) zdb_dump_block(thing, buf, size, flags); out: - umem_free(buf, size); + umem_free(pbuf, SPA_MAXBLOCKSIZE); + umem_free(lbuf, SPA_MAXBLOCKSIZE); free(dup); } static boolean_t -nvlist_string_match(nvlist_t *config, char *name, char *tgt) +pool_match(nvlist_t *cfg, char *tgt) { + uint64_t v, guid = strtoull(tgt, NULL, 0); char *s; - if (nvlist_lookup_string(config, name, &s) != 0) - return (B_FALSE); - - return (strcmp(s, tgt) == 0); -} - -static boolean_t -nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt) -{ - uint64_t val; - - if (nvlist_lookup_uint64(config, name, &val) != 0) - return (B_FALSE); - - return (val == tgt); -} - -static boolean_t -vdev_child_guid_match(nvlist_t *vdev, uint64_t guid) -{ - nvlist_t **child; - uint_t c, children; - - verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, - &child, &children) == 0); - for (c = 0; c < children; ++c) - if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid)) - return (B_TRUE); - return (B_FALSE); -} - -static boolean_t -vdev_child_string_match(nvlist_t *vdev, char *tgt) -{ - nvlist_t **child; - uint_t c, children; - - verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, - &child, &children) == 0); - for (c = 0; c < children; ++c) { - if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) || - nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt)) - return (B_TRUE); - } - return (B_FALSE); -} - -static boolean_t -vdev_guid_match(nvlist_t *config, uint64_t guid) -{ - nvlist_t *nvroot; - - verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, - &nvroot) == 0); - - return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) || - vdev_child_guid_match(nvroot, guid)); -} - -static boolean_t -vdev_string_match(nvlist_t *config, char *tgt) -{ - nvlist_t *nvroot; - - verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, - &nvroot) == 0); - - return (vdev_child_string_match(nvroot, tgt)); -} - -static boolean_t -pool_match(nvlist_t *config, char *tgt) -{ - uint64_t guid = strtoull(tgt, NULL, 0); - if (guid != 0) { - return ( - nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) || - vdev_guid_match(config, guid)); + if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) + return (v == guid); } else { - return ( - nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) || - vdev_string_match(config, tgt)); + if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) + return (strcmp(s, tgt) == 0); } + return (B_FALSE); } -static int -find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir) +static char * +find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) { nvlist_t *pools; - int error = ENOENT; nvlist_t *match = NULL; + char *name = NULL; + char *sepp = NULL; + char sep; + int count = 0; + importargs_t args = { 0 }; - if (vdev_dir != NULL) - pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir); - else - pools = zpool_find_import_activeok(g_zfs, 0, NULL); + args.paths = dirc; + args.path = dirv; + args.can_be_active = B_TRUE; + + if ((sepp = strpbrk(*target, "/@")) != NULL) { + sep = *sepp; + *sepp = '\0'; + } + + pools = zpool_search_import(g_zfs, &args); if (pools != NULL) { nvpair_t *elem = NULL; - while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { verify(nvpair_value_nvlist(elem, configp) == 0); - if (pool_match(*configp, pool_id)) { + if (pool_match(*configp, *target)) { + count++; if (match != NULL) { - (void) fatal( - "More than one matching pool - " - "specify guid/devid/device path."); + /* print previously found config */ + if (name != NULL) { + (void) printf("%s\n", name); + dump_nvlist(match, 8); + name = NULL; + } + (void) printf("%s\n", + nvpair_name(elem)); + dump_nvlist(*configp, 8); } else { match = *configp; - error = 0; + name = nvpair_name(elem); } } } } + if (count > 1) + (void) fatal("\tMatched %d pools - use pool GUID " + "instead of pool name or \n" + "\tpool name part of a dataset name to select pool", count); - *configp = error ? NULL : match; + if (sepp) + *sepp = sep; + /* + * If pool GUID was specified for pool id, replace it with pool name + */ + if (name && (strstr(*target, name) != *target)) { + int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); - return (error); + *target = umem_alloc(sz, UMEM_NOFAIL); + (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); + } + + *configp = name ? match : NULL; + + return (name); } int @@ -2305,83 +2927,85 @@ main(int argc, char **argv) { int i, c; struct rlimit rl = { 1024, 1024 }; - spa_t *spa; + spa_t *spa = NULL; objset_t *os = NULL; - char *endstr; int dump_all = 1; int verbose = 0; - int error; - int exported = 0; - char *vdev_dir = NULL; + int error = 0; + char **searchdirs = NULL; + int nsearch = 0; + char *target; + nvlist_t *policy = NULL; + uint64_t max_txg = UINT64_MAX; + int rewind = ZPOOL_NEVER_REWIND; (void) setrlimit(RLIMIT_NOFILE, &rl); (void) enable_extended_FILE_stdio(-1, -1); dprintf_setup(&argc, argv); - while ((c = getopt(argc, argv, "udibcmsvCLS:U:lRep:t:")) != -1) { + while ((c = getopt(argc, argv, "bcdhilmsuCDRSAFLXevp:t:U:P")) != -1) { switch (c) { - case 'u': - case 'd': - case 'i': case 'b': case 'c': + case 'd': + case 'h': + case 'i': + case 'l': case 'm': case 's': + case 'u': case 'C': - case 'l': + case 'D': case 'R': + case 'S': dump_opt[c]++; dump_all = 0; break; + case 'A': + case 'F': case 'L': + case 'X': + case 'e': + case 'P': dump_opt[c]++; break; case 'v': verbose++; break; - case 'U': - spa_config_path = optarg; - break; - case 'e': - exported = 1; - break; case 'p': - vdev_dir = optarg; - break; - case 'S': - dump_opt[c]++; - dump_all = 0; - zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0); - if (!zdb_sig_user_data && strncmp(optarg, "all:", 4)) - usage(); - endstr = strchr(optarg, ':') + 1; - if (strcmp(endstr, "fletcher2") == 0) - zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; - else if (strcmp(endstr, "fletcher4") == 0) - zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4; - else if (strcmp(endstr, "sha256") == 0) - zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; - else if (strcmp(endstr, "all") == 0) - zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; - else - usage(); + if (searchdirs == NULL) { + searchdirs = umem_alloc(sizeof (char *), + UMEM_NOFAIL); + } else { + char **tmp = umem_alloc((nsearch + 1) * + sizeof (char *), UMEM_NOFAIL); + bcopy(searchdirs, tmp, nsearch * + sizeof (char *)); + umem_free(searchdirs, + nsearch * sizeof (char *)); + searchdirs = tmp; + } + searchdirs[nsearch++] = optarg; break; case 't': - ub_max_txg = strtoull(optarg, NULL, 0); - if (ub_max_txg < TXG_INITIAL) { + max_txg = strtoull(optarg, NULL, 0); + if (max_txg < TXG_INITIAL) { (void) fprintf(stderr, "incorrect txg " "specified: %s\n", optarg); usage(); } break; + case 'U': + spa_config_path = optarg; + break; default: usage(); break; } } - if (vdev_dir != NULL && exported == 0) { + if (!dump_opt['e'] && searchdirs != NULL) { (void) fprintf(stderr, "-p option requires use of -e\n"); usage(); } @@ -2390,18 +3014,26 @@ main(int argc, char **argv) g_zfs = libzfs_init(); ASSERT(g_zfs != NULL); + if (dump_all) + verbose = MAX(verbose, 1); + for (c = 0; c < 256; c++) { - if (dump_all && c != 'l' && c != 'R') + if (dump_all && !strchr("elAFLRSXP", c)) dump_opt[c] = 1; if (dump_opt[c]) dump_opt[c] += verbose; } + aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); + zfs_recover = (dump_opt['A'] > 1); + argc -= optind; argv += optind; + if (argc < 2 && dump_opt['R']) + usage(); if (argc < 1) { - if (dump_opt['C']) { + if (!dump_opt['e'] && dump_opt['C']) { dump_cachefile(spa_config_path); return (0); } @@ -2413,99 +3045,104 @@ main(int argc, char **argv) return (0); } - if (dump_opt['R']) { - flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; - flagbits['c'] = ZDB_FLAG_CHECKSUM; - flagbits['d'] = ZDB_FLAG_DECOMPRESS; - flagbits['e'] = ZDB_FLAG_BSWAP; - flagbits['g'] = ZDB_FLAG_GBH; - flagbits['i'] = ZDB_FLAG_INDIRECT; - flagbits['p'] = ZDB_FLAG_PHYS; - flagbits['r'] = ZDB_FLAG_RAW; - - spa = NULL; - while (argv[0]) { - zdb_read_block(argv[0], &spa); - argv++; - argc--; - } - if (spa) - spa_close(spa, (void *)zdb_read_block); - return (0); - } + if (dump_opt['X'] || dump_opt['F']) + rewind = ZPOOL_DO_REWIND | + (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); - if (dump_opt['C']) - dump_config(argv[0]); + if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || + nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || + nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) + fatal("internal error: %s", strerror(ENOMEM)); error = 0; - if (exported) { - /* - * Check to see if the name refers to an exported zpool - */ - char *slash; - nvlist_t *exported_conf = NULL; - - if ((slash = strchr(argv[0], '/')) != NULL) - *slash = '\0'; - - error = find_exported_zpool(argv[0], &exported_conf, vdev_dir); - if (error == 0) { - nvlist_t *nvl = NULL; - - if (vdev_dir != NULL) { - if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) - error = ENOMEM; - else if (nvlist_add_string(nvl, - zpool_prop_to_name(ZPOOL_PROP_ALTROOT), - vdev_dir) != 0) - error = ENOMEM; - } + target = argv[0]; - if (error == 0) - error = spa_import_verbatim(argv[0], - exported_conf, nvl); + if (dump_opt['e']) { + nvlist_t *cfg = NULL; + char *name = find_zpool(&target, &cfg, nsearch, searchdirs); - nvlist_free(nvl); + error = ENOENT; + if (name) { + if (dump_opt['C'] > 1) { + (void) printf("\nConfiguration for import:\n"); + dump_nvlist(cfg, 8); + } + if (nvlist_add_nvlist(cfg, + ZPOOL_REWIND_POLICY, policy) != 0) { + fatal("can't open '%s': %s", + target, strerror(ENOMEM)); + } + if ((error = spa_import(name, cfg, NULL)) != 0) + error = spa_import_verbatim(name, cfg, NULL); } - - if (slash != NULL) - *slash = '/'; } if (error == 0) { - if (strchr(argv[0], '/') != NULL) { - error = dmu_objset_open(argv[0], DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &os); + if (strpbrk(target, "/@") == NULL || dump_opt['R']) { + error = spa_open_rewind(target, &spa, FTAG, policy, + NULL); + if (error) { + /* + * If we're missing the log device then + * try opening the pool after clearing the + * log state. + */ + mutex_enter(&spa_namespace_lock); + if ((spa = spa_lookup(target)) != NULL && + spa->spa_log_state == SPA_LOG_MISSING) { + spa->spa_log_state = SPA_LOG_CLEAR; + error = 0; + } + mutex_exit(&spa_namespace_lock); + + if (!error) { + error = spa_open_rewind(target, &spa, + FTAG, policy, NULL); + } + } } else { - error = spa_open(argv[0], &spa, FTAG); + error = dmu_objset_own(target, DMU_OST_ANY, + B_TRUE, FTAG, &os); } } + nvlist_free(policy); if (error) - fatal("can't open %s: %s", argv[0], strerror(error)); + fatal("can't open '%s': %s", target, strerror(error)); argv++; - if (--argc > 0) { - zopt_objects = argc; - zopt_object = calloc(zopt_objects, sizeof (uint64_t)); - for (i = 0; i < zopt_objects; i++) { - errno = 0; - zopt_object[i] = strtoull(argv[i], NULL, 0); - if (zopt_object[i] == 0 && errno != 0) - fatal("bad object number %s: %s", - argv[i], strerror(errno)); + argc--; + if (!dump_opt['R']) { + if (argc > 0) { + zopt_objects = argc; + zopt_object = calloc(zopt_objects, sizeof (uint64_t)); + for (i = 0; i < zopt_objects; i++) { + errno = 0; + zopt_object[i] = strtoull(argv[i], NULL, 0); + if (zopt_object[i] == 0 && errno != 0) + fatal("bad number %s: %s", + argv[i], strerror(errno)); + } } - } - - if (os != NULL) { - dump_dir(os); - dmu_objset_close(os); + (os != NULL) ? dump_dir(os) : dump_zpool(spa); } else { - dump_zpool(spa); - spa_close(spa, FTAG); + flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; + flagbits['c'] = ZDB_FLAG_CHECKSUM; + flagbits['d'] = ZDB_FLAG_DECOMPRESS; + flagbits['e'] = ZDB_FLAG_BSWAP; + flagbits['g'] = ZDB_FLAG_GBH; + flagbits['i'] = ZDB_FLAG_INDIRECT; + flagbits['p'] = ZDB_FLAG_PHYS; + flagbits['r'] = ZDB_FLAG_RAW; + + for (i = 0; i < argc; i++) + zdb_read_block(argv[i], spa); } + (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); + fuid_table_destroy(); + sa_loaded = B_FALSE; libzfs_fini(g_zfs); kernel_fini(); diff --git a/cmd/zdb/zdb_il.c b/cmd/zdb/zdb_il.c index cc08ef514..a0ed985f5 100644 --- a/cmd/zdb/zdb_il.c +++ b/cmd/zdb/zdb_il.c @@ -40,12 +40,14 @@ extern uint8_t dump_opt[256]; +static char prefix[4] = "\t\t\t"; + static void print_log_bp(const blkptr_t *bp, const char *prefix) { char blkbuf[BP_SPRINTF_LEN]; - sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); + sprintf_blkptr(blkbuf, bp); (void) printf("%s%s\n", prefix, blkbuf); } @@ -54,19 +56,29 @@ static void zil_prt_rec_create(zilog_t *zilog, int txtype, lr_create_t *lr) { time_t crtime = lr->lr_crtime[0]; - char *name = (char *)(lr + 1); - char *link = name + strlen(name) + 1; + char *name, *link; + lr_attr_t *lrattr; - if (txtype == TX_SYMLINK) - (void) printf("\t\t\t%s -> %s\n", name, link); - else - (void) printf("\t\t\t%s\n", name); + name = (char *)(lr + 1); + + if (lr->lr_common.lrc_txtype == TX_CREATE_ATTR || + lr->lr_common.lrc_txtype == TX_MKDIR_ATTR) { + lrattr = (lr_attr_t *)(lr + 1); + name += ZIL_XVAT_SIZE(lrattr->lr_attr_masksize); + } + + if (txtype == TX_SYMLINK) { + link = name + strlen(name) + 1; + (void) printf("%s%s -> %s\n", prefix, name, link); + } else if (txtype != TX_MKXATTR) { + (void) printf("%s%s\n", prefix, name); + } - (void) printf("\t\t\t%s", ctime(&crtime)); - (void) printf("\t\t\tdoid %llu, foid %llu, mode %llo\n", + (void) printf("%s%s", prefix, ctime(&crtime)); + (void) printf("%sdoid %llu, foid %llu, mode %llo\n", prefix, (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_mode); - (void) printf("\t\t\tuid %llu, gid %llu, gen %llu, rdev 0x%llx\n", + (void) printf("%suid %llu, gid %llu, gen %llu, rdev 0x%llx\n", prefix, (u_longlong_t)lr->lr_uid, (u_longlong_t)lr->lr_gid, (u_longlong_t)lr->lr_gen, (u_longlong_t)lr->lr_rdev); } @@ -75,7 +87,7 @@ zil_prt_rec_create(zilog_t *zilog, int txtype, lr_create_t *lr) static void zil_prt_rec_remove(zilog_t *zilog, int txtype, lr_remove_t *lr) { - (void) printf("\t\t\tdoid %llu, name %s\n", + (void) printf("%sdoid %llu, name %s\n", prefix, (u_longlong_t)lr->lr_doid, (char *)(lr + 1)); } @@ -83,7 +95,7 @@ zil_prt_rec_remove(zilog_t *zilog, int txtype, lr_remove_t *lr) static void zil_prt_rec_link(zilog_t *zilog, int txtype, lr_link_t *lr) { - (void) printf("\t\t\tdoid %llu, link_obj %llu, name %s\n", + (void) printf("%sdoid %llu, link_obj %llu, name %s\n", prefix, (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_link_obj, (char *)(lr + 1)); } @@ -95,9 +107,9 @@ zil_prt_rec_rename(zilog_t *zilog, int txtype, lr_rename_t *lr) char *snm = (char *)(lr + 1); char *tnm = snm + strlen(snm) + 1; - (void) printf("\t\t\tsdoid %llu, tdoid %llu\n", + (void) printf("%ssdoid %llu, tdoid %llu\n", prefix, (u_longlong_t)lr->lr_sdoid, (u_longlong_t)lr->lr_tdoid); - (void) printf("\t\t\tsrc %s tgt %s\n", snm, tnm); + (void) printf("%ssrc %s tgt %s\n", prefix, snm, tnm); } /* ARGSUSED */ @@ -106,43 +118,48 @@ zil_prt_rec_write(zilog_t *zilog, int txtype, lr_write_t *lr) { char *data, *dlimit; blkptr_t *bp = &lr->lr_blkptr; + zbookmark_t zb; char buf[SPA_MAXBLOCKSIZE]; int verbose = MAX(dump_opt['d'], dump_opt['i']); int error; - (void) printf("\t\t\tfoid %llu, offset 0x%llx," - " length 0x%llx, blkoff 0x%llx\n", - (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset, - (u_longlong_t)lr->lr_length, (u_longlong_t)lr->lr_blkoff); + (void) printf("%sfoid %llu, offset %llx, length %llx\n", prefix, + (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_offset, + (u_longlong_t)lr->lr_length); - if (verbose < 5) + if (txtype == TX_WRITE2 || verbose < 5) return; if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) { - (void) printf("\t\t\thas blkptr, %s\n", + (void) printf("%shas blkptr, %s\n", prefix, bp->blk_birth >= spa_first_txg(zilog->zl_spa) ? "will claim" : "won't claim"); - print_log_bp(bp, "\t\t\t"); + print_log_bp(bp, prefix); + + if (BP_IS_HOLE(bp)) { + (void) printf("\t\t\tLSIZE 0x%llx\n", + (u_longlong_t)BP_GET_LSIZE(bp)); + } if (bp->blk_birth == 0) { bzero(buf, sizeof (buf)); - } else { - zbookmark_t zb; - - ASSERT3U(bp->blk_cksum.zc_word[ZIL_ZC_OBJSET], ==, - dmu_objset_id(zilog->zl_os)); - - zb.zb_objset = bp->blk_cksum.zc_word[ZIL_ZC_OBJSET]; - zb.zb_object = 0; - zb.zb_level = -1; - zb.zb_blkid = bp->blk_cksum.zc_word[ZIL_ZC_SEQ]; - - error = zio_wait(zio_read(NULL, zilog->zl_spa, - bp, buf, BP_GET_LSIZE(bp), NULL, NULL, - ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &zb)); - if (error) - return; + (void) printf("%s<hole>\n", prefix); + return; } - data = buf + lr->lr_blkoff; + if (bp->blk_birth < zilog->zl_header->zh_claim_txg) { + (void) printf("%s<block already committed>\n", prefix); + return; + } + + SET_BOOKMARK(&zb, dmu_objset_id(zilog->zl_os), + lr->lr_foid, ZB_ZIL_LEVEL, + lr->lr_offset / BP_GET_LSIZE(bp)); + + error = zio_wait(zio_read(NULL, zilog->zl_spa, + bp, buf, BP_GET_LSIZE(bp), NULL, NULL, + ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &zb)); + if (error) + return; + data = buf; } else { data = (char *)(lr + 1); } @@ -150,7 +167,7 @@ zil_prt_rec_write(zilog_t *zilog, int txtype, lr_write_t *lr) dlimit = data + MIN(lr->lr_length, (verbose < 6 ? 20 : SPA_MAXBLOCKSIZE)); - (void) printf("\t\t\t"); + (void) printf("%s", prefix); while (data < dlimit) { if (isprint(*data)) (void) printf("%c ", *data); @@ -165,7 +182,7 @@ zil_prt_rec_write(zilog_t *zilog, int txtype, lr_write_t *lr) static void zil_prt_rec_truncate(zilog_t *zilog, int txtype, lr_truncate_t *lr) { - (void) printf("\t\t\tfoid %llu, offset 0x%llx, length 0x%llx\n", + (void) printf("%sfoid %llu, offset 0x%llx, length 0x%llx\n", prefix, (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset, (u_longlong_t)lr->lr_length); } @@ -177,38 +194,38 @@ zil_prt_rec_setattr(zilog_t *zilog, int txtype, lr_setattr_t *lr) time_t atime = (time_t)lr->lr_atime[0]; time_t mtime = (time_t)lr->lr_mtime[0]; - (void) printf("\t\t\tfoid %llu, mask 0x%llx\n", + (void) printf("%sfoid %llu, mask 0x%llx\n", prefix, (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_mask); if (lr->lr_mask & AT_MODE) { - (void) printf("\t\t\tAT_MODE %llo\n", + (void) printf("%sAT_MODE %llo\n", prefix, (longlong_t)lr->lr_mode); } if (lr->lr_mask & AT_UID) { - (void) printf("\t\t\tAT_UID %llu\n", + (void) printf("%sAT_UID %llu\n", prefix, (u_longlong_t)lr->lr_uid); } if (lr->lr_mask & AT_GID) { - (void) printf("\t\t\tAT_GID %llu\n", + (void) printf("%sAT_GID %llu\n", prefix, (u_longlong_t)lr->lr_gid); } if (lr->lr_mask & AT_SIZE) { - (void) printf("\t\t\tAT_SIZE %llu\n", + (void) printf("%sAT_SIZE %llu\n", prefix, (u_longlong_t)lr->lr_size); } if (lr->lr_mask & AT_ATIME) { - (void) printf("\t\t\tAT_ATIME %llu.%09llu %s", + (void) printf("%sAT_ATIME %llu.%09llu %s", prefix, (u_longlong_t)lr->lr_atime[0], (u_longlong_t)lr->lr_atime[1], ctime(&atime)); } if (lr->lr_mask & AT_MTIME) { - (void) printf("\t\t\tAT_MTIME %llu.%09llu %s", + (void) printf("%sAT_MTIME %llu.%09llu %s", prefix, (u_longlong_t)lr->lr_mtime[0], (u_longlong_t)lr->lr_mtime[1], ctime(&mtime)); @@ -219,7 +236,7 @@ zil_prt_rec_setattr(zilog_t *zilog, int txtype, lr_setattr_t *lr) static void zil_prt_rec_acl(zilog_t *zilog, int txtype, lr_acl_t *lr) { - (void) printf("\t\t\tfoid %llu, aclcnt %llu\n", + (void) printf("%sfoid %llu, aclcnt %llu\n", prefix, (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_aclcnt); } @@ -251,10 +268,11 @@ static zil_rec_info_t zil_rec_info[TX_MAX_TYPE] = { { zil_prt_rec_create, "TX_MKDIR_ACL " }, { zil_prt_rec_create, "TX_MKDIR_ATTR " }, { zil_prt_rec_create, "TX_MKDIR_ACL_ATTR " }, + { zil_prt_rec_write, "TX_WRITE2 " }, }; /* ARGSUSED */ -static void +static int print_log_record(zilog_t *zilog, lr_t *lr, void *arg, uint64_t claim_txg) { int txtype; @@ -278,23 +296,24 @@ print_log_record(zilog_t *zilog, lr_t *lr, void *arg, uint64_t claim_txg) zil_rec_info[txtype].zri_count++; zil_rec_info[0].zri_count++; + + return (0); } /* ARGSUSED */ -static void +static int print_log_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg) { - char blkbuf[BP_SPRINTF_LEN]; + char blkbuf[BP_SPRINTF_LEN + 10]; int verbose = MAX(dump_opt['d'], dump_opt['i']); char *claim; if (verbose <= 3) - return; + return (0); if (verbose >= 5) { (void) strcpy(blkbuf, ", "); - sprintf_blkptr(blkbuf + strlen(blkbuf), - BP_SPRINTF_LEN - strlen(blkbuf), bp); + sprintf_blkptr(blkbuf + strlen(blkbuf), bp); } else { blkbuf[0] = '\0'; } @@ -308,6 +327,8 @@ print_log_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg) (void) printf("\tBlock seqno %llu, %s%s\n", (u_longlong_t)bp->blk_cksum.zc_word[ZIL_ZC_SEQ], claim, blkbuf); + + return (0); } static void @@ -340,17 +361,17 @@ dump_intent_log(zilog_t *zilog) int verbose = MAX(dump_opt['d'], dump_opt['i']); int i; - if (zh->zh_log.blk_birth == 0 || verbose < 2) + if (zh->zh_log.blk_birth == 0 || verbose < 1) return; - (void) printf("\n ZIL header: claim_txg %llu, claim_seq %llu", - (u_longlong_t)zh->zh_claim_txg, (u_longlong_t)zh->zh_claim_seq); + (void) printf("\n ZIL header: claim_txg %llu, " + "claim_blk_seq %llu, claim_lr_seq %llu", + (u_longlong_t)zh->zh_claim_txg, + (u_longlong_t)zh->zh_claim_blk_seq, + (u_longlong_t)zh->zh_claim_lr_seq); (void) printf(" replay_seq %llu, flags 0x%llx\n", (u_longlong_t)zh->zh_replay_seq, (u_longlong_t)zh->zh_flags); - if (verbose >= 4) - print_log_bp(&zh->zh_log, "\n\tfirst block: "); - for (i = 0; i < TX_MAX_TYPE; i++) zil_rec_info[i].zri_count = 0; diff --git a/cmd/zfs/zfs_iter.c b/cmd/zfs/zfs_iter.c index 04dd2bdeb..e2ab90eaf 100644 --- a/cmd/zfs/zfs_iter.c +++ b/cmd/zfs/zfs_iter.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <libintl.h> @@ -107,7 +106,8 @@ zfs_callback(zfs_handle_t *zhp, void *data) zfs_prune_proplist(zhp, cb->cb_props_table); - if (zfs_expand_proplist(zhp, cb->cb_proplist) + if (zfs_expand_proplist(zhp, cb->cb_proplist, + (cb->cb_flags & ZFS_ITER_RECVD_PROPS)) != 0) { free(node); return (-1); @@ -350,11 +350,8 @@ zfs_for_each(int argc, char **argv, int flags, zfs_type_t types, avl_pool = uu_avl_pool_create("zfs_pool", sizeof (zfs_node_t), offsetof(zfs_node_t, zn_avlnode), zfs_sort, UU_DEFAULT); - if (avl_pool == NULL) { - (void) fprintf(stderr, - gettext("internal error: out of memory\n")); - exit(1); - } + if (avl_pool == NULL) + nomem(); cb.cb_sortcol = sortcol; cb.cb_flags = flags; @@ -399,11 +396,8 @@ zfs_for_each(int argc, char **argv, int flags, zfs_type_t types, sizeof (cb.cb_props_table)); } - if ((cb.cb_avl = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) { - (void) fprintf(stderr, - gettext("internal error: out of memory\n")); - exit(1); - } + if ((cb.cb_avl = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) + nomem(); if (argc == 0) { /* @@ -453,11 +447,8 @@ zfs_for_each(int argc, char **argv, int flags, zfs_type_t types, /* * Finally, clean up the AVL tree. */ - if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) { - (void) fprintf(stderr, - gettext("internal error: out of memory")); - exit(1); - } + if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) + nomem(); while ((node = uu_avl_walk_next(walk)) != NULL) { uu_avl_remove(cb.cb_avl, node); diff --git a/cmd/zfs/zfs_iter.h b/cmd/zfs/zfs_iter.h index a0290775b..8c6b9fdef 100644 --- a/cmd/zfs/zfs_iter.h +++ b/cmd/zfs/zfs_iter.h @@ -42,6 +42,7 @@ typedef struct zfs_sort_column { #define ZFS_ITER_ARGS_CAN_BE_PATHS (1 << 1) #define ZFS_ITER_PROP_LISTSNAPS (1 << 2) #define ZFS_ITER_DEPTH_LIMIT (1 << 3) +#define ZFS_ITER_RECVD_PROPS (1 << 4) int zfs_for_each(int, char **, int options, zfs_type_t, zfs_sort_column_t *, zprop_list_t **, int, zfs_iter_f, void *); diff --git a/cmd/zfs/zfs_main.c b/cmd/zfs/zfs_main.c index 1fbd8bc65..353fd4fa6 100644 --- a/cmd/zfs/zfs_main.c +++ b/cmd/zfs/zfs_main.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <assert.h> @@ -47,12 +46,15 @@ #include <sys/mount.h> #include <sys/stat.h> #include <sys/fs/zfs.h> +#include <sys/types.h> +#include <time.h> #include <libzfs.h> #include <libuutil.h> #include "zfs_iter.h" #include "zfs_util.h" +#include "zfs_comutil.h" libzfs_handle_t *g_zfs; @@ -157,7 +159,7 @@ static zfs_command_t command_table[] = { { "list", zfs_do_list, HELP_LIST }, { NULL }, { "set", zfs_do_set, HELP_SET }, - { "get", zfs_do_get, HELP_GET }, + { "get", zfs_do_get, HELP_GET }, { "inherit", zfs_do_inherit, HELP_INHERIT }, { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, { "userspace", zfs_do_userspace, HELP_USERSPACE }, @@ -197,16 +199,15 @@ get_usage(zfs_help_t idx) "\tcreate [-ps] [-b blocksize] [-o property=value] ... " "-V <size> <volume>\n")); case HELP_DESTROY: - return (gettext("\tdestroy [-rRf] " - "<filesystem|volume|snapshot>\n" - "\tdestroy -d [-r] <filesystem|volume|snapshot>\n")); + return (gettext("\tdestroy [-rRf] <filesystem|volume>\n" + "\tdestroy [-rRd] <snapshot>\n")); case HELP_GET: return (gettext("\tget [-rHp] [-d max] " - "[-o field[,...]] [-s source[,...]]\n" + "[-o \"all\" | field[,...]] [-s source[,...]]\n" "\t <\"all\" | property[,...]> " "[filesystem|volume|snapshot] ...\n")); case HELP_INHERIT: - return (gettext("\tinherit [-r] <property> " + return (gettext("\tinherit [-rS] <property> " "<filesystem|volume|snapshot> ...\n")); case HELP_UPGRADE: return (gettext("\tupgrade [-v]\n" @@ -222,9 +223,9 @@ get_usage(zfs_help_t idx) case HELP_PROMOTE: return (gettext("\tpromote <clone-filesystem>\n")); case HELP_RECEIVE: - return (gettext("\treceive [-vnF] <filesystem|volume|" + return (gettext("\treceive [-vnFu] <filesystem|volume|" "snapshot>\n" - "\treceive [-vnF] -d <filesystem>\n")); + "\treceive [-vnFu] [-d | -e] <filesystem>\n")); case HELP_RENAME: return (gettext("\trename <filesystem|volume|snapshot> " "<filesystem|volume|snapshot>\n" @@ -233,7 +234,7 @@ get_usage(zfs_help_t idx) case HELP_ROLLBACK: return (gettext("\trollback [-rRf] <snapshot>\n")); case HELP_SEND: - return (gettext("\tsend [-R] [-[iI] snapshot] <snapshot>\n")); + return (gettext("\tsend [-RDp] [-[iI] snapshot] <snapshot>\n")); case HELP_SET: return (gettext("\tset <property=value> " "<filesystem|volume|snapshot> ...\n")); @@ -288,22 +289,39 @@ get_usage(zfs_help_t idx) /* NOTREACHED */ } +void +nomem(void) +{ + (void) fprintf(stderr, gettext("internal error: out of memory\n")); + exit(1); +} + /* * Utility function to guarantee malloc() success. */ + void * safe_malloc(size_t size) { void *data; - if ((data = calloc(1, size)) == NULL) { - (void) fprintf(stderr, "internal error: out of memory\n"); - exit(1); - } + if ((data = calloc(1, size)) == NULL) + nomem(); return (data); } +static char * +safe_strdup(char *str) +{ + char *dupstr = strdup(str); + + if (dupstr == NULL) + nomem(); + + return (dupstr); +} + /* * Callback routine that will print out information for each of * the properties. @@ -442,11 +460,8 @@ parseprop(nvlist_t *props) "specified multiple times\n"), propname); return (-1); } - if (nvlist_add_string(props, propname, propval) != 0) { - (void) fprintf(stderr, gettext("internal " - "error: out of memory\n")); - return (-1); - } + if (nvlist_add_string(props, propname, propval) != 0) + nomem(); return (0); } @@ -471,6 +486,59 @@ parse_depth(char *opt, int *flags) return (depth); } +#define PROGRESS_DELAY 2 /* seconds */ + +static char *pt_reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"; +static time_t pt_begin; +static char *pt_header = NULL; +static boolean_t pt_shown; + +static void +start_progress_timer(void) +{ + pt_begin = time(NULL) + PROGRESS_DELAY; + pt_shown = B_FALSE; +} + +static void +set_progress_header(char *header) +{ + assert(pt_header == NULL); + pt_header = safe_strdup(header); + if (pt_shown) { + (void) printf("%s: ", header); + (void) fflush(stdout); + } +} + +static void +update_progress(char *update) +{ + if (!pt_shown && time(NULL) > pt_begin) { + int len = strlen(update); + + (void) printf("%s: %s%*.*s", pt_header, update, len, len, + pt_reverse); + (void) fflush(stdout); + pt_shown = B_TRUE; + } else if (pt_shown) { + int len = strlen(update); + + (void) printf("%s%*.*s", update, len, len, pt_reverse); + (void) fflush(stdout); + } +} + +static void +finish_progress(char *done) +{ + if (pt_shown) { + (void) printf("%s\n", done); + (void) fflush(stdout); + } + free(pt_header); + pt_header = NULL; +} /* * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> * @@ -490,11 +558,8 @@ zfs_do_clone(int argc, char **argv) int ret; int c; - if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) { - (void) fprintf(stderr, gettext("internal error: " - "out of memory\n")); - return (1); - } + if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) + nomem(); /* check options */ while ((c = getopt(argc, argv, "o:p")) != -1) { @@ -608,11 +673,8 @@ zfs_do_create(int argc, char **argv) uint64_t intval; int canmount; - if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) { - (void) fprintf(stderr, gettext("internal error: " - "out of memory\n")); - return (1); - } + if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) + nomem(); /* check options */ while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { @@ -627,12 +689,8 @@ zfs_do_create(int argc, char **argv) } if (nvlist_add_uint64(props, - zfs_prop_to_name(ZFS_PROP_VOLSIZE), - intval) != 0) { - (void) fprintf(stderr, gettext("internal " - "error: out of memory\n")); - goto error; - } + zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) + nomem(); volsize = intval; break; case 'p': @@ -649,11 +707,8 @@ zfs_do_create(int argc, char **argv) if (nvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), - intval) != 0) { - (void) fprintf(stderr, gettext("internal " - "error: out of memory\n")); - goto error; - } + intval) != 0) + nomem(); break; case 'o': if (parseprop(props)) @@ -715,15 +770,14 @@ zfs_do_create(int argc, char **argv) resv_prop = ZFS_PROP_REFRESERVATION; else resv_prop = ZFS_PROP_RESERVATION; + volsize = zvol_volsize_to_reservation(volsize, props); if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), &strval) != 0) { if (nvlist_add_uint64(props, zfs_prop_to_name(resv_prop), volsize) != 0) { - (void) fprintf(stderr, gettext("internal " - "error: out of memory\n")); nvlist_free(props); - return (1); + nomem(); } } } @@ -785,12 +839,12 @@ badusage: } /* - * zfs destroy [-rRf] <fs, snap, vol> - * zfs destroy -d [-r] <fs, snap, vol> + * zfs destroy [-rRf] <fs, vol> + * zfs destroy [-rRd] <snap> * - * -r Recursively destroy all children - * -R Recursively destroy all dependents, including clones - * -f Force unmounting of any dependents + * -r Recursively destroy all children + * -R Recursively destroy all dependents, including clones + * -f Force unmounting of any dependents * -d If we can't destroy now, mark for deferred destruction * * Destroys the given dataset. By default, it will unmount any filesystems, @@ -876,7 +930,7 @@ destroy_callback(zfs_handle_t *zhp, void *data) /* * Ignore pools (which we've already flagged as an error before getting - * here. + * here). */ if (strchr(zfs_get_name(zhp), '/') == NULL && zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { @@ -940,12 +994,14 @@ zfs_do_destroy(int argc, char **argv) int c; zfs_handle_t *zhp; char *cp; + zfs_type_t type = ZFS_TYPE_DATASET; /* check options */ while ((c = getopt(argc, argv, "dfrR")) != -1) { switch (c) { case 'd': cb.cb_defer_destroy = B_TRUE; + type = ZFS_TYPE_SNAPSHOT; break; case 'f': cb.cb_force = 1; @@ -978,9 +1034,6 @@ zfs_do_destroy(int argc, char **argv) usage(B_FALSE); } - if (cb.cb_defer_destroy && cb.cb_doclones) - usage(B_FALSE); - /* * If we are doing recursive destroy of a snapshot, then the * named snapshot may not exist. Go straight to libzfs. @@ -995,11 +1048,19 @@ zfs_do_destroy(int argc, char **argv) cp++; if (cb.cb_doclones) { + boolean_t defer = cb.cb_defer_destroy; + + /* + * Temporarily ignore the defer_destroy setting since + * it's not supported for clones. + */ + cb.cb_defer_destroy = B_FALSE; cb.cb_snapname = cp; if (destroy_snap_clones(zhp, &cb) != 0) { zfs_close(zhp); return (1); } + cb.cb_defer_destroy = defer; } ret = zfs_destroy_snaps(zhp, cp, cb.cb_defer_destroy); @@ -1012,7 +1073,7 @@ zfs_do_destroy(int argc, char **argv) } /* Open the given dataset */ - if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) + if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) return (1); cb.cb_target = zhp; @@ -1062,18 +1123,32 @@ zfs_do_destroy(int argc, char **argv) return (0); } +static boolean_t +is_recvd_column(zprop_get_cbdata_t *cbp) +{ + int i; + zfs_get_column_t col; + + for (i = 0; i < ZFS_GET_NCOLS && + (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) + if (col == GET_COL_RECVD) + return (B_TRUE); + return (B_FALSE); +} + /* - * zfs get [-rHp] [-o field[,field]...] [-s source[,source]...] - * < all | property[,property]... > < fs | snap | vol > ... + * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] + * < all | property[,property]... > < fs | snap | vol > ... * * -r recurse over any child datasets * -H scripted mode. Headers are stripped, and fields are separated * by tabs instead of spaces. - * -o Set of fields to display. One of "name,property,value,source". - * Default is all four. + * -o Set of fields to display. One of "name,property,value, + * received,source". Default is "name,property,value,source". + * "all" is an alias for all five. * -s Set of sources to allow. One of - * "local,default,inherited,temporary,none". Default is all - * five. + * "local,default,inherited,received,temporary,none". Default is + * all six. * -p Display values in parsable (literal) format. * * Prints properties for the given datasets. The user can control which @@ -1087,16 +1162,19 @@ static int get_callback(zfs_handle_t *zhp, void *data) { char buf[ZFS_MAXPROPLEN]; + char rbuf[ZFS_MAXPROPLEN]; zprop_source_t sourcetype; char source[ZFS_MAXNAMELEN]; zprop_get_cbdata_t *cbp = data; - nvlist_t *userprop = zfs_get_user_props(zhp); + nvlist_t *user_props = zfs_get_user_props(zhp); zprop_list_t *pl = cbp->cb_proplist; nvlist_t *propval; char *strval; char *sourceval; + boolean_t received = is_recvd_column(cbp); for (; pl != NULL; pl = pl->pl_next) { + char *recvdval = NULL; /* * Skip the special fake placeholder. This will also skip over * the name property when 'all' is specified. @@ -1123,9 +1201,14 @@ get_callback(zfs_handle_t *zhp, void *data) (void) strlcpy(buf, "-", sizeof (buf)); } + if (received && (zfs_prop_get_recvd(zhp, + zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), + cbp->cb_literal) == 0)) + recvdval = rbuf; + zprop_print_one_property(zfs_get_name(zhp), cbp, zfs_prop_to_name(pl->pl_prop), - buf, sourcetype, source); + buf, sourcetype, source, recvdval); } else if (zfs_prop_userquota(pl->pl_user_prop)) { sourcetype = ZPROP_SRC_LOCAL; @@ -1136,9 +1219,9 @@ get_callback(zfs_handle_t *zhp, void *data) } zprop_print_one_property(zfs_get_name(zhp), cbp, - pl->pl_user_prop, buf, sourcetype, source); + pl->pl_user_prop, buf, sourcetype, source, NULL); } else { - if (nvlist_lookup_nvlist(userprop, + if (nvlist_lookup_nvlist(user_props, pl->pl_user_prop, &propval) != 0) { if (pl->pl_all) continue; @@ -1153,6 +1236,9 @@ get_callback(zfs_handle_t *zhp, void *data) if (strcmp(sourceval, zfs_get_name(zhp)) == 0) { sourcetype = ZPROP_SRC_LOCAL; + } else if (strcmp(sourceval, + ZPROP_SOURCE_VAL_RECVD) == 0) { + sourcetype = ZPROP_SRC_RECEIVED; } else { sourcetype = ZPROP_SRC_INHERITED; (void) strlcpy(source, @@ -1160,9 +1246,14 @@ get_callback(zfs_handle_t *zhp, void *data) } } + if (received && (zfs_prop_get_recvd(zhp, + pl->pl_user_prop, rbuf, sizeof (rbuf), + cbp->cb_literal) == 0)) + recvdval = rbuf; + zprop_print_one_property(zfs_get_name(zhp), cbp, pl->pl_user_prop, strval, sourcetype, - source); + source, recvdval); } } @@ -1218,10 +1309,10 @@ zfs_do_get(int argc, char **argv) i = 0; while (*optarg != '\0') { static char *col_subopts[] = - { "name", "property", "value", "source", - NULL }; + { "name", "property", "value", "received", + "source", "all", NULL }; - if (i == 4) { + if (i == ZFS_GET_NCOLS) { (void) fprintf(stderr, gettext("too " "many fields given to -o " "option\n")); @@ -1240,8 +1331,28 @@ zfs_do_get(int argc, char **argv) cb.cb_columns[i++] = GET_COL_VALUE; break; case 3: + cb.cb_columns[i++] = GET_COL_RECVD; + flags |= ZFS_ITER_RECVD_PROPS; + break; + case 4: cb.cb_columns[i++] = GET_COL_SOURCE; break; + case 5: + if (i > 0) { + (void) fprintf(stderr, + gettext("\"all\" conflicts " + "with specific fields " + "given to -o option\n")); + usage(B_FALSE); + } + cb.cb_columns[0] = GET_COL_NAME; + cb.cb_columns[1] = GET_COL_PROPERTY; + cb.cb_columns[2] = GET_COL_VALUE; + cb.cb_columns[3] = GET_COL_RECVD; + cb.cb_columns[4] = GET_COL_SOURCE; + flags |= ZFS_ITER_RECVD_PROPS; + i = ZFS_GET_NCOLS; + break; default: (void) fprintf(stderr, gettext("invalid column name " @@ -1256,7 +1367,8 @@ zfs_do_get(int argc, char **argv) while (*optarg != '\0') { static char *source_subopts[] = { "local", "default", "inherited", - "temporary", "none", NULL }; + "received", "temporary", "none", + NULL }; switch (getsubopt(&optarg, source_subopts, &value)) { @@ -1270,9 +1382,12 @@ zfs_do_get(int argc, char **argv) cb.cb_sources |= ZPROP_SRC_INHERITED; break; case 3: - cb.cb_sources |= ZPROP_SRC_TEMPORARY; + cb.cb_sources |= ZPROP_SRC_RECEIVED; break; case 4: + cb.cb_sources |= ZPROP_SRC_TEMPORARY; + break; + case 5: cb.cb_sources |= ZPROP_SRC_NONE; break; default: @@ -1339,9 +1454,10 @@ zfs_do_get(int argc, char **argv) } /* - * inherit [-r] <property> <fs|vol> ... + * inherit [-rS] <property> <fs|vol> ... * - * -r Recurse over all children + * -r Recurse over all children + * -S Revert to received value, if any * * For each dataset specified on the command line, inherit the given property * from its parent. Inheriting a property at the pool level will cause it to @@ -1350,11 +1466,16 @@ zfs_do_get(int argc, char **argv) * local modifications for each dataset. */ +typedef struct inherit_cbdata { + const char *cb_propname; + boolean_t cb_received; +} inherit_cbdata_t; + static int inherit_recurse_cb(zfs_handle_t *zhp, void *data) { - char *propname = data; - zfs_prop_t prop = zfs_name_to_prop(propname); + inherit_cbdata_t *cb = data; + zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); /* * If we're doing it recursively, then ignore properties that @@ -1364,15 +1485,15 @@ inherit_recurse_cb(zfs_handle_t *zhp, void *data) !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) return (0); - return (zfs_prop_inherit(zhp, propname) != 0); + return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); } static int inherit_cb(zfs_handle_t *zhp, void *data) { - char *propname = data; + inherit_cbdata_t *cb = data; - return (zfs_prop_inherit(zhp, propname) != 0); + return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); } static int @@ -1380,16 +1501,21 @@ zfs_do_inherit(int argc, char **argv) { int c; zfs_prop_t prop; + inherit_cbdata_t cb = { 0 }; char *propname; int ret; int flags = 0; + boolean_t received = B_FALSE; /* check options */ - while ((c = getopt(argc, argv, "r")) != -1) { + while ((c = getopt(argc, argv, "rS")) != -1) { switch (c) { case 'r': flags |= ZFS_ITER_RECURSE; break; + case 'S': + received = B_TRUE; + break; case '?': default: (void) fprintf(stderr, gettext("invalid option '%c'\n"), @@ -1422,7 +1548,7 @@ zfs_do_inherit(int argc, char **argv) propname); return (1); } - if (!zfs_prop_inheritable(prop)) { + if (!zfs_prop_inheritable(prop) && !received) { (void) fprintf(stderr, gettext("'%s' property cannot " "be inherited\n"), propname); if (prop == ZFS_PROP_QUOTA || @@ -1433,18 +1559,27 @@ zfs_do_inherit(int argc, char **argv) "%s=none' to clear\n"), propname); return (1); } + if (received && (prop == ZFS_PROP_VOLSIZE || + prop == ZFS_PROP_VERSION)) { + (void) fprintf(stderr, gettext("'%s' property cannot " + "be reverted to a received value\n"), propname); + return (1); + } } else if (!zfs_prop_user(propname)) { (void) fprintf(stderr, gettext("invalid property '%s'\n"), propname); usage(B_FALSE); } + cb.cb_propname = propname; + cb.cb_received = received; + if (flags & ZFS_ITER_RECURSE) { ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, - NULL, NULL, 0, inherit_recurse_cb, propname); + NULL, NULL, 0, inherit_recurse_cb, &cb); } else { ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, - NULL, NULL, 0, inherit_cb, propname); + NULL, NULL, 0, inherit_cb, &cb); } return (ret); @@ -1513,31 +1648,25 @@ upgrade_set_callback(zfs_handle_t *zhp, void *data) { upgrade_cbdata_t *cb = data; int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); - int i; - static struct { int zplver; int spaver; } table[] = { - {ZPL_VERSION_FUID, SPA_VERSION_FUID}, - {ZPL_VERSION_USERSPACE, SPA_VERSION_USERSPACE}, - {0, 0} - }; - - - for (i = 0; table[i].zplver; i++) { - if (cb->cb_version >= table[i].zplver) { - int spa_version; - - if (zfs_spa_version(zhp, &spa_version) < 0) - return (-1); - - if (spa_version < table[i].spaver) { - /* can't upgrade */ - (void) printf(gettext("%s: can not be " - "upgraded; the pool version needs to first " - "be upgraded\nto version %d\n\n"), - zfs_get_name(zhp), table[i].spaver); - cb->cb_numfailed++; - return (0); - } - } + int needed_spa_version; + int spa_version; + + if (zfs_spa_version(zhp, &spa_version) < 0) + return (-1); + + needed_spa_version = zfs_spa_version_map(cb->cb_version); + + if (needed_spa_version < 0) + return (-1); + + if (spa_version < needed_spa_version) { + /* can't upgrade */ + (void) printf(gettext("%s: can not be " + "upgraded; the pool version needs to first " + "be upgraded\nto version %d\n\n"), + zfs_get_name(zhp), needed_spa_version); + cb->cb_numfailed++; + return (0); } /* upgrade */ @@ -1639,11 +1768,10 @@ zfs_do_upgrade(int argc, char **argv) "unique identifier (FUID)\n")); (void) printf(gettext(" 4 userquota, groupquota " "properties\n")); + (void) printf(gettext(" 5 System attributes\n")); (void) printf(gettext("\nFor more information on a particular " - "version, including supported releases, see:\n\n")); - (void) printf("http://www.opensolaris.org/os/community/zfs/" - "version/zpl/N\n\n"); - (void) printf(gettext("Where 'N' is the version number.\n")); + "version, including supported releases,\n")); + (void) printf("see the ZFS Administration Guide.\n\n"); ret = 0; } else if (argc || all) { /* Upgrade filesystems */ @@ -1769,11 +1897,11 @@ zfs_do_userspace(int argc, char **argv) * [-s property [-s property]...] [-S property [-S property]...] * <dataset> ... * - * -r Recurse over all children - * -d Limit recursion by depth. - * -H Scripted mode; elide headers and separate columns by tabs - * -o Control which fields to display. - * -t Control which object types to display. + * -r Recurse over all children + * -d Limit recursion by depth. + * -H Scripted mode; elide headers and separate columns by tabs + * -o Control which fields to display. + * -t Control which object types to display. * -s Specify sort columns, descending order. * -S Specify sort columns, ascending order. * @@ -2170,9 +2298,9 @@ zfs_do_promote(int argc, char **argv) /* * zfs rollback [-rRf] <snapshot> * - * -r Delete any intervening snapshots before doing rollback - * -R Delete any snapshots and their clones - * -f ignored for backwards compatability + * -r Delete any intervening snapshots before doing rollback + * -R Delete any snapshots and their clones + * -f ignored for backwards compatability * * Given a filesystem, rollback to a specific snapshot, discarding any changes * since then and making it the active dataset. If more recent snapshots exist, @@ -2433,11 +2561,8 @@ zfs_do_snapshot(int argc, char **argv) char c; nvlist_t *props; - if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) { - (void) fprintf(stderr, gettext("internal error: " - "out of memory\n")); - return (1); - } + if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) + nomem(); /* check options */ while ((c = getopt(argc, argv, "ro:")) != -1) { @@ -2482,8 +2607,8 @@ usage: } /* - * zfs send [-v] -R [-i|-I <@snap>] <fs@snap> - * zfs send [-v] [-i|-I <@snap>] <fs@snap> + * zfs send [-vDp] -R [-i|-I <@snap>] <fs@snap> + * zfs send [-vDp] [-i|-I <@snap>] <fs@snap> * * Send a backup stream to stdout. */ @@ -2494,14 +2619,13 @@ zfs_do_send(int argc, char **argv) char *toname = NULL; char *cp; zfs_handle_t *zhp; - boolean_t doall = B_FALSE; - boolean_t replicate = B_FALSE; - boolean_t fromorigin = B_FALSE; - boolean_t verbose = B_FALSE; + sendflags_t flags = { 0 }; int c, err; + nvlist_t *dbgnv; + boolean_t extraverbose = B_FALSE; /* check options */ - while ((c = getopt(argc, argv, ":i:I:Rv")) != -1) { + while ((c = getopt(argc, argv, ":i:I:RDpv")) != -1) { switch (c) { case 'i': if (fromname) @@ -2512,13 +2636,21 @@ zfs_do_send(int argc, char **argv) if (fromname) usage(B_FALSE); fromname = optarg; - doall = B_TRUE; + flags.doall = B_TRUE; break; case 'R': - replicate = B_TRUE; + flags.replicate = B_TRUE; + break; + case 'p': + flags.props = B_TRUE; break; case 'v': - verbose = B_TRUE; + if (flags.verbose) + extraverbose = B_TRUE; + flags.verbose = B_TRUE; + break; + case 'D': + flags.dedup = B_TRUE; break; case ':': (void) fprintf(stderr, gettext("missing argument for " @@ -2578,7 +2710,7 @@ zfs_do_send(int argc, char **argv) if (strcmp(origin, fromname) == 0) { fromname = NULL; - fromorigin = B_TRUE; + flags.fromorigin = B_TRUE; } else { *cp = '\0'; if (cp != fromname && strcmp(argv[0], fromname)) { @@ -2596,18 +2728,29 @@ zfs_do_send(int argc, char **argv) } } - if (replicate && fromname == NULL) - doall = B_TRUE; + if (flags.replicate && fromname == NULL) + flags.doall = B_TRUE; + + err = zfs_send(zhp, fromname, toname, flags, STDOUT_FILENO, NULL, 0, + extraverbose ? &dbgnv : NULL); - err = zfs_send(zhp, fromname, toname, replicate, doall, fromorigin, - verbose, STDOUT_FILENO); + if (extraverbose) { + /* + * dump_nvlist prints to stdout, but that's been + * redirected to a file. Make it print to stderr + * instead. + */ + (void) dup2(STDERR_FILENO, STDOUT_FILENO); + dump_nvlist(dbgnv, 0); + nvlist_free(dbgnv); + } zfs_close(zhp); return (err != 0); } /* - * zfs receive [-dnvF] <fs@snap> + * zfs receive [-vnFu] [-d | -e] <fs@snap> * * Restore a backup stream from stdin. */ @@ -2615,15 +2758,18 @@ static int zfs_do_receive(int argc, char **argv) { int c, err; - recvflags_t flags; + recvflags_t flags = { 0 }; - bzero(&flags, sizeof (recvflags_t)); /* check options */ - while ((c = getopt(argc, argv, ":dnuvF")) != -1) { + while ((c = getopt(argc, argv, ":denuvF")) != -1) { switch (c) { case 'd': flags.isprefix = B_TRUE; break; + case 'e': + flags.isprefix = B_TRUE; + flags.istail = B_TRUE; + break; case 'n': flags.dryrun = B_TRUE; break; @@ -2681,15 +2827,19 @@ zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) int i; const char *tag; boolean_t recursive = B_FALSE; + boolean_t temphold = B_FALSE; + const char *opts = holding ? "rt" : "r"; int c; - int (*func)(zfs_handle_t *, const char *, const char *, boolean_t); /* check options */ - while ((c = getopt(argc, argv, "r")) != -1) { + while ((c = getopt(argc, argv, opts)) != -1) { switch (c) { case 'r': recursive = B_TRUE; break; + case 't': + temphold = B_TRUE; + break; case '?': (void) fprintf(stderr, gettext("invalid option '%c'\n"), optopt); @@ -2708,16 +2858,10 @@ zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) --argc; ++argv; - if (holding) { - if (tag[0] == '.') { - /* tags starting with '.' are reserved for libzfs */ - (void) fprintf(stderr, - gettext("tag may not start with '.'\n")); - usage(B_FALSE); - } - func = zfs_hold; - } else { - func = zfs_release; + if (holding && tag[0] == '.') { + /* tags starting with '.' are reserved for libzfs */ + (void) fprintf(stderr, gettext("tag may not start with '.'\n")); + usage(B_FALSE); } for (i = 0; i < argc; ++i) { @@ -2742,8 +2886,14 @@ zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) ++errors; continue; } - if (func(zhp, delim+1, tag, recursive) != 0) - ++errors; + if (holding) { + if (zfs_hold(zhp, delim+1, tag, recursive, + temphold, B_FALSE) != 0) + ++errors; + } else { + if (zfs_release(zhp, delim+1, tag, recursive) != 0) + ++errors; + } zfs_close(zhp); } @@ -2751,9 +2901,10 @@ zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) } /* - * zfs hold [-r] <tag> <snap> ... + * zfs hold [-r] [-t] <tag> <snap> ... * - * -r Recursively hold + * -r Recursively hold + * -t Temporary hold (hidden option) * * Apply a user-hold with the given tag to the list of snapshots. */ @@ -2766,7 +2917,7 @@ zfs_do_hold(int argc, char **argv) /* * zfs release [-r] <tag> <snap> ... * - * -r Recursively release + * -r Recursively release * * Release a user-hold with the given tag from the list of snapshots. */ @@ -2791,7 +2942,7 @@ typedef struct get_all_cbdata { static int get_one_dataset(zfs_handle_t *zhp, void *data) { - static char spin[] = { '-', '\\', '|', '/' }; + static char *spin[] = { "-", "\\", "|", "/" }; static int spinval = 0; static int spincheck = 0; static time_t last_spin_time = (time_t)0; @@ -2802,8 +2953,7 @@ get_one_dataset(zfs_handle_t *zhp, void *data) if (--spincheck < 0) { time_t now = time(NULL); if (last_spin_time + SPINNER_TIME < now) { - (void) printf("\b%c", spin[spinval++ % 4]); - (void) fflush(stdout); + update_progress(spin[spinval++ % 4]); last_spin_time = now; } spincheck = CHECK_SPINNER; @@ -2859,19 +3009,16 @@ get_all_datasets(uint_t types, zfs_handle_t ***dslist, size_t *count, cb.cb_types = types; cb.cb_verbose = verbose; - if (verbose) { - (void) printf("%s: *", gettext("Reading ZFS config")); - (void) fflush(stdout); - } + if (verbose) + set_progress_header(gettext("Reading ZFS config")); (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); *dslist = cb.cb_handles; *count = cb.cb_used; - if (verbose) { - (void) printf("\b%s\n", gettext("done.")); - } + if (verbose) + finish_progress(gettext("done.")); } static int @@ -3098,42 +3245,9 @@ share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, return (1); break; } - } else { + } else assert(op == OP_SHARE); - /* - * Ignore any volumes that aren't shared. - */ - verify(zfs_prop_get(zhp, ZFS_PROP_SHAREISCSI, shareopts, - sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); - - if (strcmp(shareopts, "off") == 0) { - if (!explicit) - return (0); - - (void) fprintf(stderr, gettext("cannot share '%s': " - "'shareiscsi' property not set\n"), - zfs_get_name(zhp)); - (void) fprintf(stderr, gettext("set 'shareiscsi' " - "property or use iscsitadm(1M) to share this " - "volume\n")); - return (1); - } - - if (zfs_is_shared_iscsi(zhp)) { - if (!explicit) - return (0); - - (void) fprintf(stderr, gettext("cannot share " - "'%s': volume already shared\n"), - zfs_get_name(zhp)); - return (1); - } - - if (zfs_share_iscsi(zhp) != 0) - return (1); - } - return (0); } @@ -3143,19 +3257,16 @@ share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, static void report_mount_progress(int current, int total) { - static int len; - static char *reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b" - "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"; - static time_t last_progress_time; + static time_t last_progress_time = 0; time_t now = time(NULL); + char info[32]; /* report 1..n instead of 0..n-1 */ ++current; /* display header if we're here for the first time */ if (current == 1) { - (void) printf(gettext("Mounting ZFS filesystems: ")); - len = 0; + set_progress_header(gettext("Mounting ZFS filesystems")); } else if (current != total && last_progress_time + MOUNT_TIME >= now) { /* too soon to report again */ return; @@ -3163,13 +3274,12 @@ report_mount_progress(int current, int total) last_progress_time = now; - /* back up to prepare for overwriting */ - if (len) - (void) printf("%*.*s", len, len, reverse); + (void) sprintf(info, "(%d/%d)", current, total); - /* We put a newline at the end if this is the last one. */ - len = printf("(%d/%d)%s", current, total, current == total ? "\n" : ""); - (void) fflush(stdout); + if (current == total) + finish_progress(info); + else + update_progress(info); } static void @@ -3254,11 +3364,9 @@ share_mount(int op, int argc, char **argv) if (strcmp(argv[0], "nfs") == 0 || strcmp(argv[0], "smb") == 0) { types = ZFS_TYPE_FILESYSTEM; - } else if (strcmp(argv[0], "iscsi") == 0) { - types = ZFS_TYPE_VOLUME; } else { (void) fprintf(stderr, gettext("share type " - "must be 'nfs', 'smb' or 'iscsi'\n")); + "must be 'nfs' or 'smb'\n")); usage(B_FALSE); } protocol = argv[0]; @@ -3273,6 +3381,7 @@ share_mount(int op, int argc, char **argv) usage(B_FALSE); } + start_progress_timer(); get_all_datasets(types, &dslist, &count, verbose); if (count == 0) @@ -3341,7 +3450,7 @@ share_mount(int op, int argc, char **argv) } /* - * zfs mount -a [nfs | iscsi] + * zfs mount -a [nfs] * zfs mount filesystem * * Mount all filesystems, or mount the given filesystem. @@ -3353,7 +3462,7 @@ zfs_do_mount(int argc, char **argv) } /* - * zfs share -a [nfs | iscsi | smb] + * zfs share -a [nfs | smb] * zfs share filesystem * * Share all filesystems, or share the given filesystem. @@ -3509,7 +3618,7 @@ unshare_unmount(int op, int argc, char **argv) int ret = 0; int types, c; zfs_handle_t *zhp; - char nfsiscsi_mnt_prop[ZFS_MAXPROPLEN]; + char nfs_mnt_prop[ZFS_MAXPROPLEN]; char sharesmb[ZFS_MAXPROPLEN]; /* check options */ @@ -3558,21 +3667,12 @@ unshare_unmount(int op, int argc, char **argv) usage(B_FALSE); } - if ((pool = uu_avl_pool_create("unmount_pool", + if (((pool = uu_avl_pool_create("unmount_pool", sizeof (unshare_unmount_node_t), offsetof(unshare_unmount_node_t, un_avlnode), - unshare_unmount_compare, - UU_DEFAULT)) == NULL) { - (void) fprintf(stderr, gettext("internal error: " - "out of memory\n")); - exit(1); - } - - if ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL) { - (void) fprintf(stderr, gettext("internal error: " - "out of memory\n")); - exit(1); - } + unshare_unmount_compare, UU_DEFAULT)) == NULL) || + ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) + nomem(); rewind(mnttab_file); while (getmntent(mnttab_file, &entry) == 0) { @@ -3594,25 +3694,25 @@ unshare_unmount(int op, int argc, char **argv) switch (op) { case OP_SHARE: verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, - nfsiscsi_mnt_prop, - sizeof (nfsiscsi_mnt_prop), + nfs_mnt_prop, + sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); - if (strcmp(nfsiscsi_mnt_prop, "off") != 0) + if (strcmp(nfs_mnt_prop, "off") != 0) break; verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, - nfsiscsi_mnt_prop, - sizeof (nfsiscsi_mnt_prop), + nfs_mnt_prop, + sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); - if (strcmp(nfsiscsi_mnt_prop, "off") == 0) + if (strcmp(nfs_mnt_prop, "off") == 0) continue; break; case OP_MOUNT: /* Ignore legacy mounts */ verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, - nfsiscsi_mnt_prop, - sizeof (nfsiscsi_mnt_prop), + nfs_mnt_prop, + sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); - if (strcmp(nfsiscsi_mnt_prop, "legacy") == 0) + if (strcmp(nfs_mnt_prop, "legacy") == 0) continue; /* Ignore canmount=noauto mounts */ if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == @@ -3624,13 +3724,7 @@ unshare_unmount(int op, int argc, char **argv) node = safe_malloc(sizeof (unshare_unmount_node_t)); node->un_zhp = zhp; - - if ((node->un_mountp = strdup(entry.mnt_mountp)) == - NULL) { - (void) fprintf(stderr, gettext("internal error:" - " out of memory\n")); - exit(1); - } + node->un_mountp = safe_strdup(entry.mnt_mountp); uu_avl_node_init(node, &node->un_avlnode, pool); @@ -3648,11 +3742,8 @@ unshare_unmount(int op, int argc, char **argv) * removing it from the AVL tree in the process. */ if ((walk = uu_avl_walk_start(tree, - UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) { - (void) fprintf(stderr, - gettext("internal error: out of memory")); - exit(1); - } + UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) + nomem(); while ((node = uu_avl_walk_next(walk)) != NULL) { uu_avl_remove(tree, node); @@ -3680,29 +3771,6 @@ unshare_unmount(int op, int argc, char **argv) uu_avl_destroy(tree); uu_avl_pool_destroy(pool); - if (op == OP_SHARE) { - /* - * Finally, unshare any volumes shared via iSCSI. - */ - zfs_handle_t **dslist = NULL; - size_t i, count = 0; - - get_all_datasets(ZFS_TYPE_VOLUME, &dslist, &count, - B_FALSE); - - if (count != 0) { - qsort(dslist, count, sizeof (void *), - dataset_cmp); - - for (i = 0; i < count; i++) { - if (zfs_unshare_iscsi(dslist[i]) != 0) - ret = 1; - zfs_close(dslist[i]); - } - - free(dslist); - } - } } else { if (argc != 1) { if (argc == 0) @@ -3734,20 +3802,20 @@ unshare_unmount(int op, int argc, char **argv) if (zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { verify(zfs_prop_get(zhp, op == OP_SHARE ? ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, - nfsiscsi_mnt_prop, sizeof (nfsiscsi_mnt_prop), NULL, + nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); switch (op) { case OP_SHARE: verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, - nfsiscsi_mnt_prop, - sizeof (nfsiscsi_mnt_prop), + nfs_mnt_prop, + sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, sharesmb, sizeof (sharesmb), NULL, NULL, 0, B_FALSE) == 0); - if (strcmp(nfsiscsi_mnt_prop, "off") == 0 && + if (strcmp(nfs_mnt_prop, "off") == 0 && strcmp(sharesmb, "off") == 0) { (void) fprintf(stderr, gettext("cannot " "unshare '%s': legacy share\n"), @@ -3767,7 +3835,7 @@ unshare_unmount(int op, int argc, char **argv) break; case OP_MOUNT: - if (strcmp(nfsiscsi_mnt_prop, "legacy") == 0) { + if (strcmp(nfs_mnt_prop, "legacy") == 0) { (void) fprintf(stderr, gettext("cannot " "unmount '%s': legacy " "mountpoint\n"), zfs_get_name(zhp)); @@ -3786,29 +3854,6 @@ unshare_unmount(int op, int argc, char **argv) } break; } - } else { - assert(op == OP_SHARE); - - verify(zfs_prop_get(zhp, ZFS_PROP_SHAREISCSI, - nfsiscsi_mnt_prop, sizeof (nfsiscsi_mnt_prop), - NULL, NULL, 0, B_FALSE) == 0); - - if (strcmp(nfsiscsi_mnt_prop, "off") == 0) { - (void) fprintf(stderr, gettext("cannot unshare " - "'%s': 'shareiscsi' property not set\n"), - zfs_get_name(zhp)); - (void) fprintf(stderr, gettext("set " - "'shareiscsi' property or use " - "iscsitadm(1M) to share this volume\n")); - ret = 1; - } else if (!zfs_is_shared_iscsi(zhp)) { - (void) fprintf(stderr, gettext("cannot " - "unshare '%s': not currently shared\n"), - zfs_get_name(zhp)); - ret = 1; - } else if (zfs_unshare_iscsi(zhp) != 0) { - ret = 1; - } } zfs_close(zhp); @@ -3986,27 +4031,6 @@ manual_unmount(int argc, char **argv) } static int -volcheck(zpool_handle_t *zhp, void *data) -{ - boolean_t isinit = *((boolean_t *)data); - - if (isinit) - return (zpool_create_zvol_links(zhp)); - else - return (zpool_remove_zvol_links(zhp)); -} - -/* - * Iterate over all pools in the system and either create or destroy /dev/zvol - * links, depending on the value of 'isinit'. - */ -static int -do_volcheck(boolean_t isinit) -{ - return (zpool_iter(g_zfs, volcheck, &isinit) ? 1 : 0); -} - -static int find_command_idx(char *command, int *idx) { int i; @@ -4092,15 +4116,6 @@ main(int argc, char **argv) usage(B_TRUE); /* - * 'volinit' and 'volfini' do not appear in the usage message, - * so we have to special case them here. - */ - if (strcmp(cmdname, "volinit") == 0) - return (do_volcheck(B_TRUE)); - else if (strcmp(cmdname, "volfini") == 0) - return (do_volcheck(B_FALSE)); - - /* * Run the appropriate command. */ libzfs_mnttab_cache(g_zfs, B_TRUE); diff --git a/cmd/zfs/zfs_util.h b/cmd/zfs/zfs_util.h index c7f2f1618..3ddff9e22 100644 --- a/cmd/zfs/zfs_util.h +++ b/cmd/zfs/zfs_util.h @@ -19,15 +19,12 @@ * CDDL HEADER END */ /* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _ZFS_UTIL_H #define _ZFS_UTIL_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <libzfs.h> #ifdef __cplusplus @@ -35,6 +32,7 @@ extern "C" { #endif void * safe_malloc(size_t size); +void nomem(void); libzfs_handle_t *g_zfs; #ifdef __cplusplus diff --git a/cmd/zinject/translate.c b/cmd/zinject/translate.c index c85e024b6..cd967a845 100644 --- a/cmd/zinject/translate.c +++ b/cmd/zinject/translate.c @@ -19,14 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <libzfs.h> -#undef verify /* both libzfs.h and zfs_context.h want to define this */ - #include <sys/zfs_context.h> #include <errno.h> @@ -69,6 +66,18 @@ ziprintf(const char *fmt, ...) va_end(ap); } +static void +compress_slashes(const char *src, char *dest) +{ + while (*src != '\0') { + *dest = *src++; + while (*dest == '/' && *src == '/') + ++src; + ++dest; + } + *dest = '\0'; +} + /* * Given a full path to a file, translate into a dataset name and a relative * path within the dataset. 'dataset' must be at least MAXNAMELEN characters, @@ -76,13 +85,16 @@ ziprintf(const char *fmt, ...) * buffer, which we need later to get the object ID. */ static int -parse_pathname(const char *fullpath, char *dataset, char *relpath, +parse_pathname(const char *inpath, char *dataset, char *relpath, struct stat64 *statbuf) { struct extmnttab mp; FILE *fp; int match; const char *rel; + char fullpath[MAXPATHLEN]; + + compress_slashes(inpath, fullpath); if (fullpath[0] != '/') { (void) fprintf(stderr, "invalid object '%s': must be full " @@ -162,8 +174,8 @@ object_from_path(const char *dataset, const char *path, struct stat64 *statbuf, */ sync(); - if ((err = dmu_objset_open(dataset, DMU_OST_ZFS, - DS_MODE_USER | DS_MODE_READONLY, &os)) != 0) { + err = dmu_objset_own(dataset, DMU_OST_ZFS, B_TRUE, FTAG, &os); + if (err != 0) { (void) fprintf(stderr, "cannot open dataset '%s': %s\n", dataset, strerror(err)); return (-1); @@ -172,7 +184,7 @@ object_from_path(const char *dataset, const char *path, struct stat64 *statbuf, record->zi_objset = dmu_objset_id(os); record->zi_object = statbuf->st_ino; - dmu_objset_close(os); + dmu_objset_disown(os, FTAG); return (0); } @@ -247,17 +259,17 @@ calculate_range(const char *dataset, err_type_t type, int level, char *range, * Get the dnode associated with object, so we can calculate the block * size. */ - if ((err = dmu_objset_open(dataset, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &os)) != 0) { + if ((err = dmu_objset_own(dataset, DMU_OST_ANY, + B_TRUE, FTAG, &os)) != 0) { (void) fprintf(stderr, "cannot open dataset '%s': %s\n", dataset, strerror(err)); goto out; } if (record->zi_object == 0) { - dn = os->os->os_meta_dnode; + dn = os->os_meta_dnode; } else { - err = dnode_hold(os->os, record->zi_object, FTAG, &dn); + err = dnode_hold(os, record->zi_object, FTAG, &dn); if (err != 0) { (void) fprintf(stderr, "failed to hold dnode " "for object %llu\n", @@ -306,11 +318,11 @@ calculate_range(const char *dataset, err_type_t type, int level, char *range, ret = 0; out: if (dn) { - if (dn != os->os->os_meta_dnode) + if (dn != os->os_meta_dnode) dnode_rele(dn, FTAG); } if (os) - dmu_objset_close(os); + dmu_objset_disown(os, FTAG); return (ret); } @@ -347,8 +359,8 @@ translate_record(err_type_t type, const char *object, const char *range, case TYPE_CONFIG: record->zi_type = DMU_OT_PACKED_NVLIST; break; - case TYPE_BPLIST: - record->zi_type = DMU_OT_BPLIST; + case TYPE_BPOBJ: + record->zi_type = DMU_OT_BPOBJ; break; case TYPE_SPACEMAP: record->zi_type = DMU_OT_SPACE_MAP; @@ -469,6 +481,14 @@ translate_device(const char *pool, const char *device, err_type_t label_type, record->zi_start = offsetof(vdev_label_t, vl_vdev_phys); record->zi_end = record->zi_start + VDEV_PHYS_SIZE - 1; break; + case TYPE_LABEL_PAD1: + record->zi_start = offsetof(vdev_label_t, vl_pad1); + record->zi_end = record->zi_start + VDEV_PAD_SIZE - 1; + break; + case TYPE_LABEL_PAD2: + record->zi_start = offsetof(vdev_label_t, vl_pad2); + record->zi_end = record->zi_start + VDEV_PAD_SIZE - 1; + break; } return (0); } diff --git a/cmd/zinject/zinject.c b/cmd/zinject/zinject.c index 09c377ef8..ab04e422a 100644 --- a/cmd/zinject/zinject.c +++ b/cmd/zinject/zinject.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -42,12 +41,12 @@ * any attempt to read from the device will return EIO, but any attempt to * reopen the device will also return ENXIO. * For label faults, the -L option must be specified. This allows faults - * to be injected into either the nvlist or uberblock region of all the labels - * for the specified device. + * to be injected into either the nvlist, uberblock, pad1, or pad2 region + * of all the labels for the specified device. * * This form of the command looks like: * - * zinject -d device [-e errno] [-L <uber | nvlist>] pool + * zinject -d device [-e errno] [-L <uber | nvlist | pad1 | pad2>] pool * * * DATA FAULTS @@ -70,7 +69,7 @@ * mos Any data in the MOS * mosdir object directory * config pool configuration - * bplist blkptr list + * bpobj blkptr list * spacemap spacemap * metaslab metaslab * errlog persistent error log @@ -164,11 +163,13 @@ static const char *errtable[TYPE_INVAL] = { "mosdir", "metaslab", "config", - "bplist", + "bpobj", "spacemap", "errlog", "uber", - "nvlist" + "nvlist", + "pad1", + "pad2" }; static err_type_t @@ -192,8 +193,8 @@ type_to_name(uint64_t type) return ("metaslab"); case DMU_OT_PACKED_NVLIST: return ("config"); - case DMU_OT_BPLIST: - return ("bplist"); + case DMU_OT_BPOBJ: + return ("bpobj"); case DMU_OT_SPACE_MAP: return ("spacemap"); case DMU_OT_ERROR_LOG: @@ -222,11 +223,28 @@ usage(void) "\t\tClear the particular record (if given a numeric ID), or\n" "\t\tall records if 'all' is specificed.\n" "\n" - "\tzinject -d device [-e errno] [-L <nvlist|uber>] [-F] pool\n" + "\tzinject -p <function name> pool\n" + "\t\tInject a panic fault at the specified function. Only \n" + "\t\tfunctions which call spa_vdev_config_exit(), or \n" + "\t\tspa_vdev_exit() will trigger a panic.\n" + "\n" + "\tzinject -d device [-e errno] [-L <nvlist|uber|pad1|pad2>] [-F]\n" + "\t [-T <read|write|free|claim|all> pool\n" "\t\tInject a fault into a particular device or the device's\n" - "\t\tlabel. Label injection can either be 'nvlist' or 'uber'.\n" + "\t\tlabel. Label injection can either be 'nvlist', 'uber',\n " + "\t\t'pad1', or 'pad2'.\n" "\t\t'errno' can either be 'nxio' (the default) or 'io'.\n" "\n" + "\tzinject -d device -A <degrade|fault> pool\n" + "\t\tPerform a specific action on a particular device\n" + "\n" + "\tzinject -I [-s <seconds> | -g <txgs>] pool\n" + "\t\tCause the pool to stop writing blocks yet not\n" + "\t\treport errors for a duration. Simulates buggy hardware\n" + "\t\tthat fails to honor cache flush requests.\n" + "\t\tDefault duration is 30 seconds. The machine is panicked\n" + "\t\tat the end of the duration.\n" + "\n" "\tzinject -b objset:object:level:blkid pool\n" "\n" "\t\tInject an error into pool 'pool' with the numeric bookmark\n" @@ -267,7 +285,7 @@ usage(void) "\t\t\ton a ZFS filesystem.\n" "\n" "\t-t <mos>\tInject errors into the MOS for objects of the given\n" - "\t\t\ttype. Valid types are: mos, mosdir, config, bplist,\n" + "\t\t\ttype. Valid types are: mos, mosdir, config, bpobj,\n" "\t\t\tspacemap, metaslab, errlog. The only valid <object> is\n" "\t\t\tthe poolname.\n"); } @@ -286,6 +304,12 @@ iter_handlers(int (*func)(int, const char *, zinject_record_t *, void *), &zc.zc_inject_record, data)) != 0) return (ret); + if (errno != ENOENT) { + (void) fprintf(stderr, "Unable to list handlers: %s\n", + strerror(errno)); + return (-1); + } + return (0); } @@ -295,7 +319,7 @@ print_data_handler(int id, const char *pool, zinject_record_t *record, { int *count = data; - if (record->zi_guid != 0) + if (record->zi_guid != 0 || record->zi_func[0] != '\0') return (0); if (*count == 0) { @@ -327,7 +351,7 @@ print_device_handler(int id, const char *pool, zinject_record_t *record, { int *count = data; - if (record->zi_guid == 0) + if (record->zi_guid == 0 || record->zi_func[0] != '\0') return (0); if (*count == 0) { @@ -343,6 +367,27 @@ print_device_handler(int id, const char *pool, zinject_record_t *record, return (0); } +static int +print_panic_handler(int id, const char *pool, zinject_record_t *record, + void *data) +{ + int *count = data; + + if (record->zi_func[0] == '\0') + return (0); + + if (*count == 0) { + (void) printf("%3s %-15s %s\n", "ID", "POOL", "FUNCTION"); + (void) printf("--- --------------- ----------------\n"); + } + + *count += 1; + + (void) printf("%3d %-15s %s\n", id, pool, record->zi_func); + + return (0); +} + /* * Print all registered error handlers. Returns the number of handlers * registered. @@ -356,6 +401,9 @@ print_all_handlers(void) (void) printf("\n"); count = 0; (void) iter_handlers(print_data_handler, &count); + (void) printf("\n"); + count = 0; + (void) iter_handlers(print_panic_handler, &count); return (count); } @@ -386,7 +434,8 @@ cancel_all_handlers(void) { int ret = iter_handlers(cancel_one_handler, NULL); - (void) printf("removed all registered handlers\n"); + if (ret == 0) + (void) printf("removed all registered handlers\n"); return (ret); } @@ -443,6 +492,15 @@ register_handler(const char *pool, int flags, zinject_record_t *record, if (record->zi_guid) { (void) printf(" vdev: %llx\n", (u_longlong_t)record->zi_guid); + } else if (record->zi_func[0] != '\0') { + (void) printf(" panic function: %s\n", + record->zi_func); + } else if (record->zi_duration > 0) { + (void) printf(" time: %lld seconds\n", + (u_longlong_t)record->zi_duration); + } else if (record->zi_duration < 0) { + (void) printf(" txgs: %lld \n", + (u_longlong_t)-record->zi_duration); } else { (void) printf("objset: %llu\n", (u_longlong_t)record->zi_objset); @@ -465,6 +523,22 @@ register_handler(const char *pool, int flags, zinject_record_t *record, } int +perform_action(const char *pool, zinject_record_t *record, int cmd) +{ + zfs_cmd_t zc; + + ASSERT(cmd == VDEV_STATE_DEGRADED || cmd == VDEV_STATE_FAULTED); + (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); + zc.zc_guid = record->zi_guid; + zc.zc_cookie = cmd; + + if (ioctl(zfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) + return (0); + + return (1); +} + +int main(int argc, char **argv) { int c; @@ -477,12 +551,17 @@ main(int argc, char **argv) int quiet = 0; int error = 0; int domount = 0; + int io_type = ZIO_TYPES; + int action = VDEV_STATE_UNKNOWN; err_type_t type = TYPE_INVAL; err_type_t label = TYPE_INVAL; zinject_record_t record = { 0 }; char pool[MAXNAMELEN]; char dataset[MAXNAMELEN]; zfs_handle_t *zhp; + int nowrites = 0; + int dur_txg = 0; + int dur_secs = 0; int ret; int flags = 0; @@ -514,11 +593,24 @@ main(int argc, char **argv) return (0); } - while ((c = getopt(argc, argv, ":ab:d:f:Fqhc:t:l:mr:e:uL:")) != -1) { + while ((c = getopt(argc, argv, + ":aA:b:d:f:Fg:qhIc:t:T:l:mr:s:e:uL:p:")) != -1) { switch (c) { case 'a': flags |= ZINJECT_FLUSH_ARC; break; + case 'A': + if (strcasecmp(optarg, "degrade") == 0) { + action = VDEV_STATE_DEGRADED; + } else if (strcasecmp(optarg, "fault") == 0) { + action = VDEV_STATE_FAULTED; + } else { + (void) fprintf(stderr, "invalid action '%s': " + "must be 'degrade' or 'fault'\n", optarg); + usage(); + return (1); + } + break; case 'b': raw = optarg; break; @@ -554,9 +646,27 @@ main(int argc, char **argv) case 'F': record.zi_failfast = B_TRUE; break; + case 'g': + dur_txg = 1; + record.zi_duration = (int)strtol(optarg, &end, 10); + if (record.zi_duration <= 0 || *end != '\0') { + (void) fprintf(stderr, "invalid duration '%s': " + "must be a positive integer\n", optarg); + usage(); + return (1); + } + /* store duration of txgs as its negative */ + record.zi_duration *= -1; + break; case 'h': usage(); return (0); + case 'I': + /* default duration, if one hasn't yet been defined */ + nowrites = 1; + if (dur_secs == 0 && dur_txg == 0) + record.zi_duration = 30; + break; case 'l': level = (int)strtol(optarg, &end, 10); if (*end != '\0') { @@ -569,12 +679,45 @@ main(int argc, char **argv) case 'm': domount = 1; break; + case 'p': + (void) strlcpy(record.zi_func, optarg, + sizeof (record.zi_func)); + break; case 'q': quiet = 1; break; case 'r': range = optarg; break; + case 's': + dur_secs = 1; + record.zi_duration = (int)strtol(optarg, &end, 10); + if (record.zi_duration <= 0 || *end != '\0') { + (void) fprintf(stderr, "invalid duration '%s': " + "must be a positive integer\n", optarg); + usage(); + return (1); + } + break; + case 'T': + if (strcasecmp(optarg, "read") == 0) { + io_type = ZIO_TYPE_READ; + } else if (strcasecmp(optarg, "write") == 0) { + io_type = ZIO_TYPE_WRITE; + } else if (strcasecmp(optarg, "free") == 0) { + io_type = ZIO_TYPE_FREE; + } else if (strcasecmp(optarg, "claim") == 0) { + io_type = ZIO_TYPE_CLAIM; + } else if (strcasecmp(optarg, "all") == 0) { + io_type = ZIO_TYPES; + } else { + (void) fprintf(stderr, "invalid I/O type " + "'%s': must be 'read', 'write', 'free', " + "'claim' or 'all'\n", optarg); + usage(); + return (1); + } + break; case 't': if ((type = name_to_type(optarg)) == TYPE_INVAL && !MOS_TYPE(type)) { @@ -617,7 +760,8 @@ main(int argc, char **argv) * '-c' is invalid with any other options. */ if (raw != NULL || range != NULL || type != TYPE_INVAL || - level != 0) { + level != 0 || record.zi_func[0] != '\0' || + record.zi_duration != 0) { (void) fprintf(stderr, "cancel (-c) incompatible with " "any other options\n"); usage(); @@ -649,7 +793,8 @@ main(int argc, char **argv) * for doing injection, so handle it separately here. */ if (raw != NULL || range != NULL || type != TYPE_INVAL || - level != 0) { + level != 0 || record.zi_func[0] != '\0' || + record.zi_duration != 0) { (void) fprintf(stderr, "device (-d) incompatible with " "data error injection\n"); usage(); @@ -672,12 +817,18 @@ main(int argc, char **argv) return (1); } + record.zi_iotype = io_type; if (translate_device(pool, device, label, &record) != 0) return (1); if (!error) error = ENXIO; + + if (action != VDEV_STATE_UNKNOWN) + return (perform_action(pool, &record, action)); + } else if (raw != NULL) { - if (range != NULL || type != TYPE_INVAL || level != 0) { + if (range != NULL || type != TYPE_INVAL || level != 0 || + record.zi_func[0] != '\0' || record.zi_duration != 0) { (void) fprintf(stderr, "raw (-b) format with " "any other options\n"); usage(); @@ -704,10 +855,52 @@ main(int argc, char **argv) return (1); if (!error) error = EIO; + } else if (record.zi_func[0] != '\0') { + if (raw != NULL || range != NULL || type != TYPE_INVAL || + level != 0 || device != NULL || record.zi_duration != 0) { + (void) fprintf(stderr, "panic (-p) incompatible with " + "other options\n"); + usage(); + return (2); + } + + if (argc < 1 || argc > 2) { + (void) fprintf(stderr, "panic (-p) injection requires " + "a single pool name and an optional id\n"); + usage(); + return (2); + } + + (void) strcpy(pool, argv[0]); + if (argv[1] != NULL) + record.zi_type = atoi(argv[1]); + dataset[0] = '\0'; + } else if (record.zi_duration != 0) { + if (nowrites == 0) { + (void) fprintf(stderr, "-s or -g meaningless " + "without -I (ignore writes)\n"); + usage(); + return (2); + } else if (dur_secs && dur_txg) { + (void) fprintf(stderr, "choose a duration either " + "in seconds (-s) or a number of txgs (-g) " + "but not both\n"); + usage(); + return (2); + } else if (argc != 1) { + (void) fprintf(stderr, "ignore writes (-I) " + "injection requires a single pool name\n"); + usage(); + return (2); + } + + (void) strcpy(pool, argv[0]); + dataset[0] = '\0'; } else if (type == TYPE_INVAL) { if (flags == 0) { (void) fprintf(stderr, "at least one of '-b', '-d', " - "'-t', '-a', or '-u' must be specified\n"); + "'-t', '-a', '-p', '-I' or '-u' " + "must be specified\n"); usage(); return (2); } diff --git a/cmd/zinject/zinject.h b/cmd/zinject/zinject.h index adc3efe80..46fdcad8b 100644 --- a/cmd/zinject/zinject.h +++ b/cmd/zinject/zinject.h @@ -19,15 +19,12 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _ZINJECT_H #define _ZINJECT_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_ioctl.h> #ifdef __cplusplus @@ -41,11 +38,13 @@ typedef enum { TYPE_MOSDIR, /* MOS object directory */ TYPE_METASLAB, /* metaslab objects */ TYPE_CONFIG, /* MOS config */ - TYPE_BPLIST, /* block pointer list */ + TYPE_BPOBJ, /* block pointer list */ TYPE_SPACEMAP, /* space map objects */ TYPE_ERRLOG, /* persistent error log */ TYPE_LABEL_UBERBLOCK, /* label specific uberblock */ TYPE_LABEL_NVLIST, /* label specific nvlist */ + TYPE_LABEL_PAD1, /* label specific 8K pad1 area */ + TYPE_LABEL_PAD2, /* label specific 8K pad2 area */ TYPE_INVAL } err_type_t; diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c index c9b092e44..62c4be832 100644 --- a/cmd/zpool/zpool_main.c +++ b/cmd/zpool/zpool_main.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <assert.h> @@ -42,7 +41,6 @@ #include <pwd.h> #include <zone.h> #include <sys/fs/zfs.h> - #include <sys/stat.h> #include <libzfs.h> @@ -50,6 +48,8 @@ #include "zpool_util.h" #include "zfs_comutil.h" +#include "statcommon.h" + static int zpool_do_create(int, char **); static int zpool_do_destroy(int, char **); @@ -67,6 +67,7 @@ static int zpool_do_clear(int, char **); static int zpool_do_attach(int, char **); static int zpool_do_detach(int, char **); static int zpool_do_replace(int, char **); +static int zpool_do_split(int, char **); static int zpool_do_scrub(int, char **); @@ -119,7 +120,8 @@ typedef enum { HELP_STATUS, HELP_UPGRADE, HELP_GET, - HELP_SET + HELP_SET, + HELP_SPLIT } zpool_help_t; @@ -156,6 +158,7 @@ static zpool_command_t command_table[] = { { "attach", zpool_do_attach, HELP_ATTACH }, { "detach", zpool_do_detach, HELP_DETACH }, { "replace", zpool_do_replace, HELP_REPLACE }, + { "split", zpool_do_split, HELP_SPLIT }, { NULL }, { "scrub", zpool_do_scrub, HELP_SCRUB }, { NULL }, @@ -173,6 +176,8 @@ static zpool_command_t command_table[] = { zpool_command_t *current_command; static char history_str[HIS_MAX_RECORD_LEN]; +static uint_t timestamp_fmt = NODATE; + static const char * get_usage(zpool_help_t idx) { switch (idx) { @@ -182,7 +187,7 @@ get_usage(zpool_help_t idx) { return (gettext("\tattach [-f] <pool> <device> " "<new-device>\n")); case HELP_CLEAR: - return (gettext("\tclear <pool> [device]\n")); + return (gettext("\tclear [-nF] <pool> [device]\n")); case HELP_CREATE: return (gettext("\tcreate [-fn] [-o property=value] ... \n" "\t [-O file-system-property=value] ... \n" @@ -197,17 +202,18 @@ get_usage(zpool_help_t idx) { return (gettext("\thistory [-il] [<pool>] ...\n")); case HELP_IMPORT: return (gettext("\timport [-d dir] [-D]\n" + "\timport [-d dir | -c cachefile] [-n] -F <pool | id>\n" "\timport [-o mntopts] [-o property=value] ... \n" "\t [-d dir | -c cachefile] [-D] [-f] [-R root] -a\n" "\timport [-o mntopts] [-o property=value] ... \n" "\t [-d dir | -c cachefile] [-D] [-f] [-R root] " "<pool | id> [newpool]\n")); case HELP_IOSTAT: - return (gettext("\tiostat [-v] [pool] ... [interval " + return (gettext("\tiostat [-v] [-T d|u] [pool] ... [interval " "[count]]\n")); case HELP_LIST: return (gettext("\tlist [-H] [-o property[,...]] " - "[pool] ...\n")); + "[-T d|u] [pool] ... [interval [count]]\n")); case HELP_OFFLINE: return (gettext("\toffline [-t] <pool> <device> ...\n")); case HELP_ONLINE: @@ -220,7 +226,8 @@ get_usage(zpool_help_t idx) { case HELP_SCRUB: return (gettext("\tscrub [-s] <pool> ...\n")); case HELP_STATUS: - return (gettext("\tstatus [-vx] [pool] ...\n")); + return (gettext("\tstatus [-vx] [-T d|u] [pool] ... [interval " + "[count]]\n")); case HELP_UPGRADE: return (gettext("\tupgrade\n" "\tupgrade -v\n" @@ -230,6 +237,10 @@ get_usage(zpool_help_t idx) { "<pool> ...\n")); case HELP_SET: return (gettext("\tset <property=value> <pool> \n")); + case HELP_SPLIT: + return (gettext("\tsplit [-n] [-R altroot] [-o mntopts]\n" + "\t [-o property=value] <pool> <newpool> " + "[<device> ...]\n")); } abort(); @@ -245,12 +256,12 @@ print_prop_cb(int prop, void *cb) { FILE *fp = cb; - (void) fprintf(fp, "\t%-13s ", zpool_prop_to_name(prop)); + (void) fprintf(fp, "\t%-15s ", zpool_prop_to_name(prop)); if (zpool_prop_readonly(prop)) (void) fprintf(fp, " NO "); else - (void) fprintf(fp, " YES "); + (void) fprintf(fp, " YES "); if (zpool_prop_values(prop) == NULL) (void) fprintf(fp, "-\n"); @@ -297,7 +308,7 @@ usage(boolean_t requested) (void) fprintf(fp, gettext("\nthe following properties are supported:\n")); - (void) fprintf(fp, "\n\t%-13s %s %s\n\n", + (void) fprintf(fp, "\n\t%-15s %s %s\n\n", "PROPERTY", "EDIT", "VALUES"); /* Iterate over all properties */ @@ -339,7 +350,7 @@ print_vdev_tree(zpool_handle_t *zhp, const char *name, nvlist_t *nv, int indent, if ((is_log && !print_logs) || (!is_log && print_logs)) continue; - vname = zpool_vdev_name(g_zfs, zhp, child[c]); + vname = zpool_vdev_name(g_zfs, zhp, child[c], B_FALSE); print_vdev_tree(zhp, vname, child[c], indent + 2, B_FALSE); free(vname); @@ -507,11 +518,10 @@ zpool_do_add(int argc, char **argv) } /* - * zpool remove <pool> <vdev> ... + * zpool remove <pool> <vdev> ... * - * Removes the given vdev from the pool. Currently, this only supports removing - * spares and cache devices from the pool. Eventually, we'll want to support - * removing leaf vdevs (as an alias for 'detach') as well as toplevel vdevs. + * Removes the given vdev from the pool. Currently, this supports removing + * spares, cache, and log devices from the pool. */ int zpool_do_remove(int argc, char **argv) @@ -940,7 +950,7 @@ zpool_do_export(int argc, char **argv) static int max_width(zpool_handle_t *zhp, nvlist_t *nv, int depth, int max) { - char *name = zpool_vdev_name(g_zfs, zhp, nv); + char *name = zpool_vdev_name(g_zfs, zhp, nv, B_TRUE); nvlist_t **child; uint_t c, children; int ret; @@ -1032,20 +1042,21 @@ print_status_config(zpool_handle_t *zhp, const char *name, nvlist_t *nv, { nvlist_t **child; uint_t c, children; + pool_scan_stat_t *ps = NULL; vdev_stat_t *vs; - char rbuf[6], wbuf[6], cbuf[6], repaired[7]; + char rbuf[6], wbuf[6], cbuf[6]; char *vname; uint64_t notpresent; spare_cbdata_t cb; char *state; - verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, - (uint64_t **)&vs, &c) == 0); - if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child, &children) != 0) children = 0; + verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS, + (uint64_t **)&vs, &c) == 0); + state = zpool_state_to_name(vs->vs_state, vs->vs_aux); if (isspare) { /* @@ -1123,31 +1134,43 @@ print_status_config(zpool_handle_t *zhp, const char *name, nvlist_t *nv, (void) printf(gettext("bad intent log")); break; + case VDEV_AUX_EXTERNAL: + (void) printf(gettext("external device fault")); + break; + + case VDEV_AUX_SPLIT_POOL: + (void) printf(gettext("split into new pool")); + break; + default: (void) printf(gettext("corrupted data")); break; } - } else if (vs->vs_scrub_repaired != 0 && children == 0) { - /* - * Report bytes resilvered/repaired on leaf devices. - */ - zfs_nicenum(vs->vs_scrub_repaired, repaired, sizeof (repaired)); - (void) printf(gettext(" %s %s"), repaired, - (vs->vs_scrub_type == POOL_SCRUB_RESILVER) ? - "resilvered" : "repaired"); + } + + (void) nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_SCAN_STATS, + (uint64_t **)&ps, &c); + + if (ps && ps->pss_state == DSS_SCANNING && + vs->vs_scan_processed != 0 && children == 0) { + (void) printf(gettext(" (%s)"), + (ps->pss_func == POOL_SCAN_RESILVER) ? + "resilvering" : "repairing"); } (void) printf("\n"); for (c = 0; c < children; c++) { - uint64_t is_log = B_FALSE; + uint64_t islog = B_FALSE, ishole = B_FALSE; - /* Don't print logs here */ + /* Don't print logs or holes here */ (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG, - &is_log); - if (is_log) + &islog); + (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE, + &ishole); + if (islog || ishole) continue; - vname = zpool_vdev_name(g_zfs, zhp, child[c]); + vname = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE); print_status_config(zhp, vname, child[c], namewidth, depth + 2, isspare); free(vname); @@ -1168,10 +1191,11 @@ print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth) char *type, *vname; verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0); - if (strcmp(type, VDEV_TYPE_MISSING) == 0) + if (strcmp(type, VDEV_TYPE_MISSING) == 0 || + strcmp(type, VDEV_TYPE_HOLE) == 0) return; - verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, + verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &c) == 0); (void) printf("\t%*s%-*s", depth, "", namewidth - depth, name); @@ -1220,7 +1244,7 @@ print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth) if (is_log) continue; - vname = zpool_vdev_name(g_zfs, NULL, child[c]); + vname = zpool_vdev_name(g_zfs, NULL, child[c], B_TRUE); print_import_config(vname, child[c], namewidth, depth + 2); free(vname); } @@ -1229,7 +1253,7 @@ print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth) &child, &children) == 0) { (void) printf(gettext("\tcache\n")); for (c = 0; c < children; c++) { - vname = zpool_vdev_name(g_zfs, NULL, child[c]); + vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE); (void) printf("\t %s\n", vname); free(vname); } @@ -1239,7 +1263,7 @@ print_import_config(const char *name, nvlist_t *nv, int namewidth, int depth) &child, &children) == 0) { (void) printf(gettext("\tspares\n")); for (c = 0; c < children; c++) { - vname = zpool_vdev_name(g_zfs, NULL, child[c]); + vname = zpool_vdev_name(g_zfs, NULL, child[c], B_FALSE); (void) printf("\t %s\n", vname); free(vname); } @@ -1274,7 +1298,7 @@ print_logs(zpool_handle_t *zhp, nvlist_t *nv, int namewidth, boolean_t verbose) &is_log); if (!is_log) continue; - name = zpool_vdev_name(g_zfs, zhp, child[c]); + name = zpool_vdev_name(g_zfs, zhp, child[c], B_TRUE); if (verbose) print_status_config(zhp, name, child[c], namewidth, 2, B_FALSE); @@ -1283,6 +1307,7 @@ print_logs(zpool_handle_t *zhp, nvlist_t *nv, int namewidth, boolean_t verbose) free(name); } } + /* * Display the status for the given pool. */ @@ -1309,7 +1334,7 @@ show_import(nvlist_t *config) verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); - verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_STATS, + verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc) == 0); health = zpool_state_to_name(vs->vs_state, vs->vs_aux); @@ -1376,6 +1401,11 @@ show_import(nvlist_t *config) "read.\n")); break; + case ZPOOL_STATUS_RESILVERING: + (void) printf(gettext("status: One or more devices were being " + "resilvered.\n")); + break; + default: /* * No other status can be seen when importing pools. @@ -1475,7 +1505,6 @@ do_import(nvlist_t *config, const char *newname, const char *mntopts, char *name; uint64_t state; uint64_t version; - int error = 0; verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, &name) == 0); @@ -1538,7 +1567,7 @@ do_import(nvlist_t *config, const char *newname, const char *mntopts, } zpool_close(zhp); - return (error); + return (0); } /* @@ -1546,7 +1575,7 @@ do_import(nvlist_t *config, const char *newname, const char *mntopts, * import [-o mntopts] [-o prop=value] ... [-R root] [-D] * [-d dir | -c cachefile] [-f] -a * import [-o mntopts] [-o prop=value] ... [-R root] [-D] - * [-d dir | -c cachefile] [-f] <pool | id> [newpool] + * [-d dir | -c cachefile] [-f] [-n] [-F] <pool | id> [newpool] * * -c Read pool information from a cachefile instead of searching * devices. @@ -1561,14 +1590,18 @@ do_import(nvlist_t *config, const char *newname, const char *mntopts, * the given root. The pool will remain exported when the machine * is rebooted. * - * -f Force import, even if it appears that the pool is active. - * - * -F Import even in the presence of faulted vdevs. This is an + * -V Import even in the presence of faulted vdevs. This is an * intentionally undocumented option for testing purposes, and * treats the pool configuration as complete, leaving any bad * vdevs in the FAULTED state. In other words, it does verbatim * import. * + * -f Force import, even if it appears that the pool is active. + * + * -F Attempt rewind if necessary. + * + * -n See if rewind would work, but don't actually rewind. + * * -a Import all pools found. * * -o Set property=value and/or temporary mount options (without '='). @@ -1582,7 +1615,7 @@ zpool_do_import(int argc, char **argv) char **searchdirs = NULL; int nsearch = 0; int c; - int err; + int err = 0; nvlist_t *pools = NULL; boolean_t do_all = B_FALSE; boolean_t do_destroyed = B_FALSE; @@ -1594,14 +1627,20 @@ zpool_do_import(int argc, char **argv) char *searchname = NULL; char *propval; nvlist_t *found_config; + nvlist_t *policy = NULL; nvlist_t *props = NULL; boolean_t first; boolean_t do_verbatim = B_FALSE; + uint32_t rewind_policy = ZPOOL_NO_REWIND; + boolean_t dryrun = B_FALSE; + boolean_t do_rewind = B_FALSE; + boolean_t xtreme_rewind = B_FALSE; uint64_t pool_state; char *cachefile = NULL; + importargs_t idata = { 0 }; /* check options */ - while ((c = getopt(argc, argv, ":ac:d:DfFo:p:R:")) != -1) { + while ((c = getopt(argc, argv, ":aCc:d:DEfFno:rR:VX")) != -1) { switch (c) { case 'a': do_all = B_TRUE; @@ -1629,7 +1668,10 @@ zpool_do_import(int argc, char **argv) do_force = B_TRUE; break; case 'F': - do_verbatim = B_TRUE; + do_rewind = B_TRUE; + break; + case 'n': + dryrun = B_TRUE; break; case 'o': if ((propval = strchr(optarg, '=')) != NULL) { @@ -1654,6 +1696,12 @@ zpool_do_import(int argc, char **argv) ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE)) goto error; break; + case 'V': + do_verbatim = B_TRUE; + break; + case 'X': + xtreme_rewind = B_TRUE; + break; case ':': (void) fprintf(stderr, gettext("missing argument for " "'%c' option\n"), optopt); @@ -1674,6 +1722,23 @@ zpool_do_import(int argc, char **argv) usage(B_FALSE); } + if ((dryrun || xtreme_rewind) && !do_rewind) { + (void) fprintf(stderr, + gettext("-n or -X only meaningful with -F\n")); + usage(B_FALSE); + } + if (dryrun) + rewind_policy = ZPOOL_TRY_REWIND; + else if (do_rewind) + rewind_policy = ZPOOL_DO_REWIND; + if (xtreme_rewind) + rewind_policy |= ZPOOL_EXTREME_REWIND; + + /* In the future, we can capture further policy and include it here */ + if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 || + nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0) + goto error; + if (searchdirs == NULL) { searchdirs = safe_malloc(sizeof (char *)); searchdirs[0] = "/dev/dsk"; @@ -1701,6 +1766,7 @@ zpool_do_import(int argc, char **argv) (void) fprintf(stderr, gettext("cannot " "discover pools: permission denied\n")); free(searchdirs); + nvlist_free(policy); return (1); } } @@ -1726,28 +1792,49 @@ zpool_do_import(int argc, char **argv) if (errno != 0 || *endptr != '\0') searchname = argv[0]; found_config = NULL; - } - if (cachefile) { - pools = zpool_find_import_cached(g_zfs, cachefile, searchname, - searchguid); - } else if (searchname != NULL) { - pools = zpool_find_import_byname(g_zfs, nsearch, searchdirs, - searchname); - } else { /* - * It's OK to search by guid even if searchguid is 0. + * User specified a name or guid. Ensure it's unique. */ - pools = zpool_find_import_byguid(g_zfs, nsearch, searchdirs, - searchguid); - } - - if (pools == NULL) { + idata.unique = B_TRUE; + } + + + idata.path = searchdirs; + idata.paths = nsearch; + idata.poolname = searchname; + idata.guid = searchguid; + idata.cachefile = cachefile; + + pools = zpool_search_import(g_zfs, &idata); + + if (pools != NULL && idata.exists && + (argc == 1 || strcmp(argv[0], argv[1]) == 0)) { + (void) fprintf(stderr, gettext("cannot import '%s': " + "a pool with that name already exists\n"), + argv[0]); + (void) fprintf(stderr, gettext("use the form '%s " + "<pool | id> <newpool>' to give it a new name\n"), + "zpool import"); + err = 1; + } else if (pools == NULL && idata.exists) { + (void) fprintf(stderr, gettext("cannot import '%s': " + "a pool with that name is already created/imported,\n"), + argv[0]); + (void) fprintf(stderr, gettext("and no additional pools " + "with that name were found\n")); + err = 1; + } else if (pools == NULL) { if (argc != 0) { (void) fprintf(stderr, gettext("cannot import '%s': " "no such pool available\n"), argv[0]); } + err = 1; + } + + if (err == 1) { free(searchdirs); + nvlist_free(policy); return (1); } @@ -1771,17 +1858,21 @@ zpool_do_import(int argc, char **argv) if (do_destroyed && pool_state != POOL_STATE_DESTROYED) continue; + verify(nvlist_add_nvlist(config, ZPOOL_REWIND_POLICY, + policy) == 0); + if (argc == 0) { if (first) first = B_FALSE; else if (!do_all) (void) printf("\n"); - if (do_all) + if (do_all) { err |= do_import(config, NULL, mntopts, do_force, props, do_verbatim); - else + } else { show_import(config); + } } else if (searchname != NULL) { char *name; @@ -1842,6 +1933,7 @@ zpool_do_import(int argc, char **argv) error: nvlist_free(props); nvlist_free(pools); + nvlist_free(policy); free(searchdirs); return (err ? 1 : 0); @@ -1869,7 +1961,7 @@ print_iostat_header(iostat_cbdata_t *cb) { (void) printf("%*s capacity operations bandwidth\n", cb->cb_namewidth, ""); - (void) printf("%-*s used avail read write read write\n", + (void) printf("%-*s alloc free read write read write\n", cb->cb_namewidth, "pool"); print_iostat_separator(cb); } @@ -1904,13 +1996,13 @@ print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv, char *vname; if (oldnv != NULL) { - verify(nvlist_lookup_uint64_array(oldnv, ZPOOL_CONFIG_STATS, - (uint64_t **)&oldvs, &c) == 0); + verify(nvlist_lookup_uint64_array(oldnv, + ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0); } else { oldvs = &zerovs; } - verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_STATS, + verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&newvs, &c) == 0); if (strlen(name) + depth > cb->cb_namewidth) @@ -1960,7 +2052,13 @@ print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv, return; for (c = 0; c < children; c++) { - vname = zpool_vdev_name(g_zfs, zhp, newchild[c]); + uint64_t ishole = B_FALSE; + + if (nvlist_lookup_uint64(newchild[c], + ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole) + continue; + + vname = zpool_vdev_name(g_zfs, zhp, newchild[c], B_FALSE); print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL, newchild[c], cb, depth + 2); free(vname); @@ -1981,7 +2079,8 @@ print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv, (void) printf("%-*s - - - - - " "-\n", cb->cb_namewidth, "cache"); for (c = 0; c < children; c++) { - vname = zpool_vdev_name(g_zfs, zhp, newchild[c]); + vname = zpool_vdev_name(g_zfs, zhp, newchild[c], + B_FALSE); print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL, newchild[c], cb, depth + 2); free(vname); @@ -2070,42 +2169,14 @@ get_namewidth(zpool_handle_t *zhp, void *data) } /* - * zpool iostat [-v] [pool] ... [interval [count]] - * - * -v Display statistics for individual vdevs - * - * This command can be tricky because we want to be able to deal with pool - * creation/destruction as well as vdev configuration changes. The bulk of this - * processing is handled by the pool_list_* routines in zpool_iter.c. We rely - * on pool_list_update() to detect the addition of new pools. Configuration - * changes are all handled within libzfs. + * Parse the input string, get the 'interval' and 'count' value if there is one. */ -int -zpool_do_iostat(int argc, char **argv) +static void +get_interval_count(int *argcp, char **argv, unsigned long *iv, + unsigned long *cnt) { - int c; - int ret; - int npools; unsigned long interval = 0, count = 0; - zpool_list_t *list; - boolean_t verbose = B_FALSE; - iostat_cbdata_t cb; - - /* check options */ - while ((c = getopt(argc, argv, "v")) != -1) { - switch (c) { - case 'v': - verbose = B_TRUE; - break; - case '?': - (void) fprintf(stderr, gettext("invalid option '%c'\n"), - optopt); - usage(B_FALSE); - } - } - - argc -= optind; - argv += optind; + int argc = *argcp, errno; /* * Determine if the last argument is an integer or a pool name @@ -2122,7 +2193,6 @@ zpool_do_iostat(int argc, char **argv) "cannot be zero\n")); usage(B_FALSE); } - /* * Ignore the last parameter */ @@ -2139,7 +2209,7 @@ zpool_do_iostat(int argc, char **argv) /* * If the last argument is also an integer, then we have both a count - * and an integer. + * and an interval. */ if (argc > 0 && isdigit(argv[argc - 1][0])) { char *end; @@ -2164,6 +2234,66 @@ zpool_do_iostat(int argc, char **argv) } } + *iv = interval; + *cnt = count; + *argcp = argc; +} + +static void +get_timestamp_arg(char c) +{ + if (c == 'u') + timestamp_fmt = UDATE; + else if (c == 'd') + timestamp_fmt = DDATE; + else + usage(B_FALSE); +} + +/* + * zpool iostat [-v] [-T d|u] [pool] ... [interval [count]] + * + * -v Display statistics for individual vdevs + * -T Display a timestamp in date(1) or Unix format + * + * This command can be tricky because we want to be able to deal with pool + * creation/destruction as well as vdev configuration changes. The bulk of this + * processing is handled by the pool_list_* routines in zpool_iter.c. We rely + * on pool_list_update() to detect the addition of new pools. Configuration + * changes are all handled within libzfs. + */ +int +zpool_do_iostat(int argc, char **argv) +{ + int c; + int ret; + int npools; + unsigned long interval = 0, count = 0; + zpool_list_t *list; + boolean_t verbose = B_FALSE; + iostat_cbdata_t cb; + + /* check options */ + while ((c = getopt(argc, argv, "T:v")) != -1) { + switch (c) { + case 'T': + get_timestamp_arg(*optarg); + break; + case 'v': + verbose = B_TRUE; + break; + case '?': + (void) fprintf(stderr, gettext("invalid option '%c'\n"), + optopt); + usage(B_FALSE); + } + } + + argc -= optind; + argv += optind; + + get_interval_count(&argc, argv, &interval, &count); + /* * Construct the list of all interesting pools. */ @@ -2210,6 +2340,9 @@ zpool_do_iostat(int argc, char **argv) cb.cb_namewidth = 0; (void) pool_list_iter(list, B_FALSE, get_namewidth, &cb); + if (timestamp_fmt != NODATE) + print_timestamp(timestamp_fmt); + /* * If it's the first time, or verbose mode, print the header. */ @@ -2361,12 +2494,13 @@ list_callback(zpool_handle_t *zhp, void *data) } /* - * zpool list [-H] [-o prop[,prop]*] [pool] ... + * zpool list [-H] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]] * * -H Scripted mode. Don't display headers, and separate properties * by a single tab. * -o List of properties to display. Defaults to - * "name,size,used,available,capacity,health,altroot" + * "name,size,allocated,free,capacity,health,altroot" + * -T Display a timestamp in date(1) or Unix format * * List all pools in the system, whether or not they're healthy. Output space * statistics for each one, as well as health status summary. @@ -2378,11 +2512,12 @@ zpool_do_list(int argc, char **argv) int ret; list_cbdata_t cb = { 0 }; static char default_props[] = - "name,size,used,available,capacity,health,altroot"; + "name,size,allocated,free,capacity,dedupratio,health,altroot"; char *props = default_props; + unsigned long interval = 0, count = 0; /* check options */ - while ((c = getopt(argc, argv, ":Ho:")) != -1) { + while ((c = getopt(argc, argv, ":Ho:T:")) != -1) { switch (c) { case 'H': cb.cb_scripted = B_TRUE; @@ -2390,6 +2525,9 @@ zpool_do_list(int argc, char **argv) case 'o': props = optarg; break; + case 'T': + get_timestamp_arg(*optarg); + break; case ':': (void) fprintf(stderr, gettext("missing argument for " "'%c' option\n"), optopt); @@ -2405,21 +2543,37 @@ zpool_do_list(int argc, char **argv) argc -= optind; argv += optind; + get_interval_count(&argc, argv, &interval, &count); + if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0) usage(B_FALSE); cb.cb_first = B_TRUE; - ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist, - list_callback, &cb); + for (;;) { - zprop_free_list(cb.cb_proplist); + if (timestamp_fmt != NODATE) + print_timestamp(timestamp_fmt); - if (argc == 0 && cb.cb_first && !cb.cb_scripted) { - (void) printf(gettext("no pools available\n")); - return (0); + ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist, + list_callback, &cb); + + if (argc == 0 && cb.cb_first && !cb.cb_scripted) { + (void) printf(gettext("no pools available\n")); + zprop_free_list(cb.cb_proplist); + return (0); + } + + if (interval == 0) + break; + + if (count != 0 && --count == 0) + break; + + (void) sleep(interval); } + zprop_free_list(cb.cb_proplist); return (ret); } @@ -2626,6 +2780,146 @@ zpool_do_detach(int argc, char **argv) } /* + * zpool split [-n] [-o prop=val] ... + * [-o mntopt] ... + * [-R altroot] <pool> <newpool> [<device> ...] + * + * -n Do not split the pool, but display the resulting layout if + * it were to be split. + * -o Set property=value, or set mount options. + * -R Mount the split-off pool under an alternate root. + * + * Splits the named pool and gives it the new pool name. Devices to be split + * off may be listed, provided that no more than one device is specified + * per top-level vdev mirror. The newly split pool is left in an exported + * state unless -R is specified. + * + * Restrictions: the top-level of the pool pool must only be made up of + * mirrors; all devices in the pool must be healthy; no device may be + * undergoing a resilvering operation. + */ +int +zpool_do_split(int argc, char **argv) +{ + char *srcpool, *newpool, *propval; + char *mntopts = NULL; + splitflags_t flags; + int c, ret = 0; + zpool_handle_t *zhp; + nvlist_t *config, *props = NULL; + + flags.dryrun = B_FALSE; + flags.import = B_FALSE; + + /* check options */ + while ((c = getopt(argc, argv, ":R:no:")) != -1) { + switch (c) { + case 'R': + flags.import = B_TRUE; + if (add_prop_list( + zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg, + &props, B_TRUE) != 0) { + if (props) + nvlist_free(props); + usage(B_FALSE); + } + break; + case 'n': + flags.dryrun = B_TRUE; + break; + case 'o': + if ((propval = strchr(optarg, '=')) != NULL) { + *propval = '\0'; + propval++; + if (add_prop_list(optarg, propval, + &props, B_TRUE) != 0) { + if (props) + nvlist_free(props); + usage(B_FALSE); + } + } else { + mntopts = optarg; + } + break; + case ':': + (void) fprintf(stderr, gettext("missing argument for " + "'%c' option\n"), optopt); + usage(B_FALSE); + break; + case '?': + (void) fprintf(stderr, gettext("invalid option '%c'\n"), + optopt); + usage(B_FALSE); + break; + } + } + + if (!flags.import && mntopts != NULL) { + (void) fprintf(stderr, gettext("setting mntopts is only " + "valid when importing the pool\n")); + usage(B_FALSE); + } + + argc -= optind; + argv += optind; + + if (argc < 1) { + (void) fprintf(stderr, gettext("Missing pool name\n")); + usage(B_FALSE); + } + if (argc < 2) { + (void) fprintf(stderr, gettext("Missing new pool name\n")); + usage(B_FALSE); + } + + srcpool = argv[0]; + newpool = argv[1]; + + argc -= 2; + argv += 2; + + if ((zhp = zpool_open(g_zfs, srcpool)) == NULL) + return (1); + + config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv); + if (config == NULL) { + ret = 1; + } else { + if (flags.dryrun) { + (void) printf(gettext("would create '%s' with the " + "following layout:\n\n"), newpool); + print_vdev_tree(NULL, newpool, config, 0, B_FALSE); + } + nvlist_free(config); + } + + zpool_close(zhp); + + if (ret != 0 || flags.dryrun || !flags.import) + return (ret); + + /* + * The split was successful. Now we need to open the new + * pool and import it. + */ + if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL) + return (1); + if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL && + zpool_enable_datasets(zhp, mntopts, 0) != 0) { + ret = 1; + (void) fprintf(stderr, gettext("Split was succssful, but " + "the datasets could not all be mounted\n")); + (void) fprintf(stderr, gettext("Try doing '%s' with a " + "different altroot\n"), "zpool import"); + } + zpool_close(zhp); + + return (ret); +} + + + +/* * zpool online <pool> <device> ... */ int @@ -2765,31 +3059,80 @@ zpool_do_offline(int argc, char **argv) int zpool_do_clear(int argc, char **argv) { + int c; int ret = 0; + boolean_t dryrun = B_FALSE; + boolean_t do_rewind = B_FALSE; + boolean_t xtreme_rewind = B_FALSE; + uint32_t rewind_policy = ZPOOL_NO_REWIND; + nvlist_t *policy = NULL; zpool_handle_t *zhp; char *pool, *device; - if (argc < 2) { + /* check options */ + while ((c = getopt(argc, argv, "FnX")) != -1) { + switch (c) { + case 'F': + do_rewind = B_TRUE; + break; + case 'n': + dryrun = B_TRUE; + break; + case 'X': + xtreme_rewind = B_TRUE; + break; + case '?': + (void) fprintf(stderr, gettext("invalid option '%c'\n"), + optopt); + usage(B_FALSE); + } + } + + argc -= optind; + argv += optind; + + if (argc < 1) { (void) fprintf(stderr, gettext("missing pool name\n")); usage(B_FALSE); } - if (argc > 3) { + if (argc > 2) { (void) fprintf(stderr, gettext("too many arguments\n")); usage(B_FALSE); } - pool = argv[1]; - device = argc == 3 ? argv[2] : NULL; + if ((dryrun || xtreme_rewind) && !do_rewind) { + (void) fprintf(stderr, + gettext("-n or -X only meaningful with -F\n")); + usage(B_FALSE); + } + if (dryrun) + rewind_policy = ZPOOL_TRY_REWIND; + else if (do_rewind) + rewind_policy = ZPOOL_DO_REWIND; + if (xtreme_rewind) + rewind_policy |= ZPOOL_EXTREME_REWIND; - if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) + /* In future, further rewind policy choices can be passed along here */ + if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 || + nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0) return (1); - if (zpool_clear(zhp, device) != 0) + pool = argv[0]; + device = argc == 2 ? argv[1] : NULL; + + if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) { + nvlist_free(policy); + return (1); + } + + if (zpool_clear(zhp, device, policy) != 0) ret = 1; zpool_close(zhp); + nvlist_free(policy); + return (ret); } @@ -2814,7 +3157,7 @@ scrub_callback(zpool_handle_t *zhp, void *data) return (1); } - err = zpool_scrub(zhp, cb->cb_type); + err = zpool_scan(zhp, cb->cb_type); return (err != 0); } @@ -2830,13 +3173,13 @@ zpool_do_scrub(int argc, char **argv) int c; scrub_cbdata_t cb; - cb.cb_type = POOL_SCRUB_EVERYTHING; + cb.cb_type = POOL_SCAN_SCRUB; /* check options */ while ((c = getopt(argc, argv, "s")) != -1) { switch (c) { case 's': - cb.cb_type = POOL_SCRUB_NONE; + cb.cb_type = POOL_SCAN_NONE; break; case '?': (void) fprintf(stderr, gettext("invalid option '%c'\n"), @@ -2864,68 +3207,110 @@ typedef struct status_cbdata { boolean_t cb_verbose; boolean_t cb_explain; boolean_t cb_first; + boolean_t cb_dedup_stats; } status_cbdata_t; /* * Print out detailed scrub status. */ void -print_scrub_status(nvlist_t *nvroot) +print_scan_status(pool_scan_stat_t *ps) { - vdev_stat_t *vs; - uint_t vsc; - time_t start, end, now; + time_t start, end; + uint64_t elapsed, mins_left; + uint64_t pass_exam, examined, total; + uint_t rate; double fraction_done; - uint64_t examined, total, minutes_left, minutes_taken; - char *scrub_type; + char processed_buf[7], examined_buf[7], total_buf[7], rate_buf[7]; - verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_STATS, - (uint64_t **)&vs, &vsc) == 0); + (void) printf(gettext(" scan: ")); - /* - * If there's never been a scrub, there's not much to say. - */ - if (vs->vs_scrub_end == 0 && vs->vs_scrub_type == POOL_SCRUB_NONE) { + /* If there's never been a scan, there's not much to say. */ + if (ps == NULL || ps->pss_func == POOL_SCAN_NONE || + ps->pss_func >= POOL_SCAN_FUNCS) { (void) printf(gettext("none requested\n")); return; } - scrub_type = (vs->vs_scrub_type == POOL_SCRUB_RESILVER) ? - "resilver" : "scrub"; - - start = vs->vs_scrub_start; - end = vs->vs_scrub_end; - now = time(NULL); - examined = vs->vs_scrub_examined; - total = vs->vs_alloc; + start = ps->pss_start_time; + end = ps->pss_end_time; + zfs_nicenum(ps->pss_processed, processed_buf, sizeof (processed_buf)); - if (end != 0) { - minutes_taken = (uint64_t)((end - start) / 60); - - (void) printf(gettext("%s %s after %lluh%um with %llu errors " - "on %s"), - scrub_type, vs->vs_scrub_complete ? "completed" : "stopped", + assert(ps->pss_func == POOL_SCAN_SCRUB || + ps->pss_func == POOL_SCAN_RESILVER); + /* + * Scan is finished or canceled. + */ + if (ps->pss_state == DSS_FINISHED) { + uint64_t minutes_taken = (end - start) / 60; + char *fmt; + + if (ps->pss_func == POOL_SCAN_SCRUB) { + fmt = gettext("scrub repaired %s in %lluh%um with " + "%llu errors on %s"); + } else if (ps->pss_func == POOL_SCAN_RESILVER) { + fmt = gettext("resilvered %s in %lluh%um with " + "%llu errors on %s"); + } + /* LINTED */ + (void) printf(fmt, processed_buf, (u_longlong_t)(minutes_taken / 60), (uint_t)(minutes_taken % 60), - (u_longlong_t)vs->vs_scrub_errors, ctime(&end)); + (u_longlong_t)ps->pss_errors, + ctime((time_t *)&end)); + return; + } else if (ps->pss_state == DSS_CANCELED) { + if (ps->pss_func == POOL_SCAN_SCRUB) { + (void) printf(gettext("scrub canceled on %s"), + ctime(&end)); + } else if (ps->pss_func == POOL_SCAN_RESILVER) { + (void) printf(gettext("resilver canceled on %s"), + ctime(&end)); + } return; } - if (examined == 0) - examined = 1; - if (examined > total) - total = examined; + assert(ps->pss_state == DSS_SCANNING); + + /* + * Scan is in progress. + */ + if (ps->pss_func == POOL_SCAN_SCRUB) { + (void) printf(gettext("scrub in progress since %s"), + ctime(&start)); + } else if (ps->pss_func == POOL_SCAN_RESILVER) { + (void) printf(gettext("resilver in progress since %s"), + ctime(&start)); + } + examined = ps->pss_examined ? ps->pss_examined : 1; + total = ps->pss_to_examine; fraction_done = (double)examined / total; - minutes_left = (uint64_t)((now - start) * - (1 - fraction_done) / fraction_done / 60); - minutes_taken = (uint64_t)((now - start) / 60); - (void) printf(gettext("%s in progress for %lluh%um, %.2f%% done, " - "%lluh%um to go\n"), - scrub_type, (u_longlong_t)(minutes_taken / 60), - (uint_t)(minutes_taken % 60), 100 * fraction_done, - (u_longlong_t)(minutes_left / 60), (uint_t)(minutes_left % 60)); + /* elapsed time for this pass */ + elapsed = time(NULL) - ps->pss_pass_start; + elapsed = elapsed ? elapsed : 1; + pass_exam = ps->pss_pass_exam ? ps->pss_pass_exam : 1; + rate = pass_exam / elapsed; + rate = rate ? rate : 1; + mins_left = ((total - examined) / rate) / 60; + + zfs_nicenum(examined, examined_buf, sizeof (examined_buf)); + zfs_nicenum(total, total_buf, sizeof (total_buf)); + zfs_nicenum(rate, rate_buf, sizeof (rate_buf)); + + (void) printf(gettext(" %s scanned out of %s at " + "%s/s, %lluh%um to go\n"), examined_buf, total_buf, rate_buf, + (u_longlong_t)(mins_left / 60), + (uint_t)(mins_left % 60)); + + if (ps->pss_func == POOL_SCAN_RESILVER) { + (void) printf(gettext(" %s resilvered, %.2f%% done\n"), + processed_buf, 100 * fraction_done); + } else if (ps->pss_func == POOL_SCAN_SCRUB) { + (void) printf(gettext(" %s repaired, %.2f%% done\n"), + processed_buf, 100 * fraction_done); + } } static void @@ -2976,7 +3361,7 @@ print_spares(zpool_handle_t *zhp, nvlist_t **spares, uint_t nspares, (void) printf(gettext("\tspares\n")); for (i = 0; i < nspares; i++) { - name = zpool_vdev_name(g_zfs, zhp, spares[i]); + name = zpool_vdev_name(g_zfs, zhp, spares[i], B_FALSE); print_status_config(zhp, name, spares[i], namewidth, 2, B_TRUE); free(name); @@ -2996,13 +3381,43 @@ print_l2cache(zpool_handle_t *zhp, nvlist_t **l2cache, uint_t nl2cache, (void) printf(gettext("\tcache\n")); for (i = 0; i < nl2cache; i++) { - name = zpool_vdev_name(g_zfs, zhp, l2cache[i]); + name = zpool_vdev_name(g_zfs, zhp, l2cache[i], B_FALSE); print_status_config(zhp, name, l2cache[i], namewidth, 2, B_FALSE); free(name); } } +static void +print_dedup_stats(nvlist_t *config) +{ + ddt_histogram_t *ddh; + ddt_stat_t *dds; + ddt_object_t *ddo; + uint_t c; + + /* + * If the pool was faulted then we may not have been able to + * obtain the config. Otherwise, if have anything in the dedup + * table continue processing the stats. + */ + if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS, + (uint64_t **)&ddo, &c) != 0 || ddo->ddo_count == 0) + return; + + (void) printf("\n"); + (void) printf("DDT entries %llu, size %llu on disk, %llu in core\n", + (u_longlong_t)ddo->ddo_count, + (u_longlong_t)ddo->ddo_dspace, + (u_longlong_t)ddo->ddo_mspace); + + verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS, + (uint64_t **)&dds, &c) == 0); + verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM, + (uint64_t **)&ddh, &c) == 0); + zpool_dump_ddt(dds, ddh); +} + /* * Display a summary of pool status. Displays a summary such as: * @@ -3055,7 +3470,7 @@ status_callback(zpool_handle_t *zhp, void *data) verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); - verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_STATS, + verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &c) == 0); health = zpool_state_to_name(vs->vs_state, vs->vs_aux); @@ -3093,8 +3508,8 @@ status_callback(zpool_handle_t *zhp, void *data) "be used because the label is missing \n\tor invalid. " "There are insufficient replicas for the pool to " "continue\n\tfunctioning.\n")); - (void) printf(gettext("action: Destroy and re-create the pool " - "from a backup source.\n")); + zpool_explain_recover(zpool_get_handle(zhp), + zpool_get_name(zhp), reason, config); break; case ZPOOL_STATUS_FAILING_DEV: @@ -3128,7 +3543,6 @@ status_callback(zpool_handle_t *zhp, void *data) "replace'.\n")); break; - case ZPOOL_STATUS_RESILVERING: (void) printf(gettext("status: One or more devices is " "currently being resilvered. The pool will\n\tcontinue " @@ -3149,8 +3563,8 @@ status_callback(zpool_handle_t *zhp, void *data) case ZPOOL_STATUS_CORRUPT_POOL: (void) printf(gettext("status: The pool metadata is corrupted " "and the pool cannot be opened.\n")); - (void) printf(gettext("action: Destroy and re-create the pool " - "from a backup source.\n")); + zpool_explain_recover(zpool_get_handle(zhp), + zpool_get_name(zhp), reason, config); break; case ZPOOL_STATUS_VERSION_OLDER: @@ -3226,10 +3640,11 @@ status_callback(zpool_handle_t *zhp, void *data) uint64_t nerr; nvlist_t **spares, **l2cache; uint_t nspares, nl2cache; + pool_scan_stat_t *ps = NULL; - - (void) printf(gettext(" scrub: ")); - print_scrub_status(nvroot); + (void) nvlist_lookup_uint64_array(nvroot, + ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &c); + print_scan_status(ps); namewidth = max_width(zhp, nvroot, 0, 0); if (namewidth < 10) @@ -3285,6 +3700,9 @@ status_callback(zpool_handle_t *zhp, void *data) else print_error_log(zhp); } + + if (cbp->cb_dedup_stats) + print_dedup_stats(config); } else { (void) printf(gettext("config: The configuration cannot be " "determined.\n")); @@ -3294,10 +3712,12 @@ status_callback(zpool_handle_t *zhp, void *data) } /* - * zpool status [-vx] [pool] ... + * zpool status [-vx] [-T d|u] [pool] ... [interval [count]] * * -v Display complete error logs * -x Display only pools with potential problems + * -D Display dedup status (undocumented) + * -T Display a timestamp in date(1) or Unix format * * Describes the health status of all pools or some subset. */ @@ -3306,10 +3726,11 @@ zpool_do_status(int argc, char **argv) { int c; int ret; + unsigned long interval = 0, count = 0; status_cbdata_t cb = { 0 }; /* check options */ - while ((c = getopt(argc, argv, "vx")) != -1) { + while ((c = getopt(argc, argv, "vxDT:")) != -1) { switch (c) { case 'v': cb.cb_verbose = B_TRUE; @@ -3317,6 +3738,12 @@ zpool_do_status(int argc, char **argv) case 'x': cb.cb_explain = B_TRUE; break; + case 'D': + cb.cb_dedup_stats = B_TRUE; + break; + case 'T': + get_timestamp_arg(*optarg); + break; case '?': (void) fprintf(stderr, gettext("invalid option '%c'\n"), optopt); @@ -3327,19 +3754,38 @@ zpool_do_status(int argc, char **argv) argc -= optind; argv += optind; - cb.cb_first = B_TRUE; + get_interval_count(&argc, argv, &interval, &count); if (argc == 0) cb.cb_allpools = B_TRUE; - ret = for_each_pool(argc, argv, B_TRUE, NULL, status_callback, &cb); + cb.cb_first = B_TRUE; - if (argc == 0 && cb.cb_count == 0) - (void) printf(gettext("no pools available\n")); - else if (cb.cb_explain && cb.cb_first && cb.cb_allpools) - (void) printf(gettext("all pools are healthy\n")); + for (;;) { + if (timestamp_fmt != NODATE) + print_timestamp(timestamp_fmt); - return (ret); + ret = for_each_pool(argc, argv, B_TRUE, NULL, + status_callback, &cb); + + if (argc == 0 && cb.cb_count == 0) + (void) printf(gettext("no pools available\n")); + else if (cb.cb_explain && cb.cb_first && cb.cb_allpools) + (void) printf(gettext("all pools are healthy\n")); + + if (ret != 0) + return (ret); + + if (interval == 0) + break; + + if (count != 0 && --count == 0) + break; + + (void) sleep(interval); + } + + return (0); } typedef struct upgrade_cbdata { @@ -3552,12 +3998,20 @@ zpool_do_upgrade(int argc, char **argv) (void) printf(gettext(" 15 user/group space accounting\n")); (void) printf(gettext(" 16 stmf property support\n")); (void) printf(gettext(" 17 Triple-parity RAID-Z\n")); - (void) printf(gettext(" 18 snapshot user holds\n")); - (void) printf(gettext("For more information on a particular " - "version, including supported releases, see:\n\n")); - (void) printf("http://www.opensolaris.org/os/community/zfs/" - "version/N\n\n"); - (void) printf(gettext("Where 'N' is the version number.\n")); + (void) printf(gettext(" 18 Snapshot user holds\n")); + (void) printf(gettext(" 19 Log device removal\n")); + (void) printf(gettext(" 20 Compression using zle " + "(zero-length encoding)\n")); + (void) printf(gettext(" 21 Deduplication\n")); + (void) printf(gettext(" 22 Received properties\n")); + (void) printf(gettext(" 23 Slim ZIL\n")); + (void) printf(gettext(" 24 System attributes\n")); + (void) printf(gettext(" 25 Improved scrub stats\n")); + (void) printf(gettext(" 26 Improved snapshot deletion " + "performance\n")); + (void) printf(gettext("\nFor more information on a particular " + "version, including supported releases,\n")); + (void) printf(gettext("see the ZFS Administration Guide.\n\n")); } else if (argc == 0) { int notfound; @@ -3599,49 +4053,6 @@ typedef struct hist_cbdata { int internal; } hist_cbdata_t; -char *hist_event_table[LOG_END] = { - "invalid event", - "pool create", - "vdev add", - "pool remove", - "pool destroy", - "pool export", - "pool import", - "vdev attach", - "vdev replace", - "vdev detach", - "vdev online", - "vdev offline", - "vdev upgrade", - "pool clear", - "pool scrub", - "pool property set", - "create", - "clone", - "destroy", - "destroy_begin_sync", - "inherit", - "property set", - "quota set", - "permission update", - "permission remove", - "permission who remove", - "promote", - "receive", - "rename", - "reservation set", - "replay_inc_sync", - "replay_full_sync", - "rollback", - "snapshot", - "filesystem version upgrade", - "refquota set", - "refreservation set", - "pool scrub done", - "user hold", - "user release", -}; - /* * Print out the command history for a specific pool. */ @@ -3699,7 +4110,7 @@ get_history_one(zpool_handle_t *zhp, void *data) (void) snprintf(internalstr, sizeof (internalstr), "[internal %s txg:%lld] %s", - hist_event_table[ievent], txg, + zfs_history_event_names[ievent], txg, pathstr); cmdstr = internalstr; } @@ -3811,7 +4222,8 @@ get_callback(zpool_handle_t *zhp, void *data) continue; zprop_print_one_property(zpool_get_name(zhp), cbp, - zpool_prop_to_name(pl->pl_prop), value, srctype, NULL); + zpool_prop_to_name(pl->pl_prop), value, srctype, NULL, + NULL); } return (0); } diff --git a/cmd/zpool/zpool_util.c b/cmd/zpool/zpool_util.c index f44da4ff6..c7a002efb 100644 --- a/cmd/zpool/zpool_util.c +++ b/cmd/zpool/zpool_util.c @@ -19,12 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <errno.h> #include <libgen.h> #include <libintl.h> @@ -51,22 +49,6 @@ safe_malloc(size_t size) } /* - * Same as above, but for strdup() - */ -char * -safe_strdup(const char *str) -{ - char *ret; - - if ((ret = strdup(str)) == NULL) { - (void) fprintf(stderr, "internal error: out of memory\n"); - exit(1); - } - - return (ret); -} - -/* * Display an out of memory error message and abort the current program. */ void diff --git a/cmd/zpool/zpool_util.h b/cmd/zpool/zpool_util.h index e82f3202a..134c730fc 100644 --- a/cmd/zpool/zpool_util.h +++ b/cmd/zpool/zpool_util.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef ZPOOL_UTIL_H @@ -37,7 +36,6 @@ extern "C" { * Basic utility functions */ void *safe_malloc(size_t); -char *safe_strdup(const char *); void zpool_no_memory(void); uint_t num_logs(nvlist_t *nv); @@ -46,7 +44,9 @@ uint_t num_logs(nvlist_t *nv); */ nvlist_t *make_root_vdev(zpool_handle_t *zhp, int force, int check_rep, - boolean_t isreplace, boolean_t dryrun, int argc, char **argv); + boolean_t replacing, boolean_t dryrun, int argc, char **argv); +nvlist_t *split_mirror_vdev(zpool_handle_t *zhp, char *newname, + nvlist_t *props, splitflags_t flags, int argc, char **argv); /* * Pool list functions diff --git a/cmd/zpool/zpool_vdev.c b/cmd/zpool/zpool_vdev.c index 621519197..53c2e60b7 100644 --- a/cmd/zpool/zpool_vdev.c +++ b/cmd/zpool/zpool_vdev.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -1004,8 +1003,8 @@ is_spare(nvlist_t *config, const char *path) return (B_FALSE); } free(name); - (void) close(fd); + verify(nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &guid) == 0); nvlist_free(label); @@ -1029,8 +1028,8 @@ is_spare(nvlist_t *config, const char *path) * the majority of this task. */ static int -check_in_use(nvlist_t *config, nvlist_t *nv, int force, int isreplacing, - int isspare) +check_in_use(nvlist_t *config, nvlist_t *nv, boolean_t force, + boolean_t replacing, boolean_t isspare) { nvlist_t **child; uint_t c, children; @@ -1051,13 +1050,14 @@ check_in_use(nvlist_t *config, nvlist_t *nv, int force, int isreplacing, * hot spare within the same pool. If so, we allow it * regardless of what libdiskmgt or zpool_in_use() says. */ - if (isreplacing) { + if (replacing) { if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &wholedisk) == 0 && wholedisk) (void) snprintf(buf, sizeof (buf), "%ss0", path); else (void) strlcpy(buf, path, sizeof (buf)); + if (is_spare(config, buf)) return (0); } @@ -1073,21 +1073,21 @@ check_in_use(nvlist_t *config, nvlist_t *nv, int force, int isreplacing, for (c = 0; c < children; c++) if ((ret = check_in_use(config, child[c], force, - isreplacing, B_FALSE)) != 0) + replacing, B_FALSE)) != 0) return (ret); if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, &child, &children) == 0) for (c = 0; c < children; c++) if ((ret = check_in_use(config, child[c], force, - isreplacing, B_TRUE)) != 0) + replacing, B_TRUE)) != 0) return (ret); if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE, &child, &children) == 0) for (c = 0; c < children; c++) if ((ret = check_in_use(config, child[c], force, - isreplacing, B_FALSE)) != 0) + replacing, B_FALSE)) != 0) return (ret); return (0); @@ -1360,6 +1360,52 @@ construct_spec(int argc, char **argv) return (nvroot); } +nvlist_t * +split_mirror_vdev(zpool_handle_t *zhp, char *newname, nvlist_t *props, + splitflags_t flags, int argc, char **argv) +{ + nvlist_t *newroot = NULL, **child; + uint_t c, children; + + if (argc > 0) { + if ((newroot = construct_spec(argc, argv)) == NULL) { + (void) fprintf(stderr, gettext("Unable to build a " + "pool from the specified devices\n")); + return (NULL); + } + + if (!flags.dryrun && make_disks(zhp, newroot) != 0) { + nvlist_free(newroot); + return (NULL); + } + + /* avoid any tricks in the spec */ + verify(nvlist_lookup_nvlist_array(newroot, + ZPOOL_CONFIG_CHILDREN, &child, &children) == 0); + for (c = 0; c < children; c++) { + char *path; + const char *type; + int min, max; + + verify(nvlist_lookup_string(child[c], + ZPOOL_CONFIG_PATH, &path) == 0); + if ((type = is_grouping(path, &min, &max)) != NULL) { + (void) fprintf(stderr, gettext("Cannot use " + "'%s' as a device for splitting\n"), type); + nvlist_free(newroot); + return (NULL); + } + } + } + + if (zpool_vdev_split(zhp, newname, &newroot, props, flags) != 0) { + if (newroot != NULL) + nvlist_free(newroot); + return (NULL); + } + + return (newroot); +} /* * Get and validate the contents of the given vdev specification. This ensures @@ -1373,7 +1419,7 @@ construct_spec(int argc, char **argv) */ nvlist_t * make_root_vdev(zpool_handle_t *zhp, int force, int check_rep, - boolean_t isreplacing, boolean_t dryrun, int argc, char **argv) + boolean_t replacing, boolean_t dryrun, int argc, char **argv) { nvlist_t *newroot; nvlist_t *poolconfig = NULL; @@ -1396,8 +1442,7 @@ make_root_vdev(zpool_handle_t *zhp, int force, int check_rep, * uses (such as a dedicated dump device) that even '-f' cannot * override. */ - if (check_in_use(poolconfig, newroot, force, isreplacing, - B_FALSE) != 0) { + if (check_in_use(poolconfig, newroot, force, replacing, B_FALSE) != 0) { nvlist_free(newroot); return (NULL); } diff --git a/cmd/ztest/ztest.c b/cmd/ztest/ztest.c index 5f49fd5a0..eed92ec72 100644 --- a/cmd/ztest/ztest.c +++ b/cmd/ztest/ztest.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -86,14 +85,16 @@ #include <sys/mman.h> #include <sys/resource.h> #include <sys/zio.h> -#include <sys/zio_checksum.h> -#include <sys/zio_compress.h> #include <sys/zil.h> +#include <sys/zil_impl.h> #include <sys/vdev_impl.h> #include <sys/vdev_file.h> #include <sys/spa_impl.h> +#include <sys/metaslab_impl.h> #include <sys/dsl_prop.h> #include <sys/dsl_dataset.h> +#include <sys/dsl_scan.h> +#include <sys/zio_checksum.h> #include <sys/refcount.h> #include <stdio.h> #include <stdio_ext.h> @@ -105,6 +106,7 @@ #include <ctype.h> #include <math.h> #include <sys/fs/zfs.h> +#include <libnvpair.h> static char cmdname[] = "ztest"; static char *zopt_pool = cmdname; @@ -124,142 +126,231 @@ static int zopt_verbose = 0; static int zopt_init = 1; static char *zopt_dir = "/tmp"; static uint64_t zopt_time = 300; /* 5 minutes */ -static int zopt_maxfaults; +static uint64_t zopt_maxloops = 50; /* max loops during spa_freeze() */ + +#define BT_MAGIC 0x123456789abcdefULL +#define MAXFAULTS() (MAX(zs->zs_mirrors, 1) * (zopt_raidz_parity + 1) - 1) + +enum ztest_io_type { + ZTEST_IO_WRITE_TAG, + ZTEST_IO_WRITE_PATTERN, + ZTEST_IO_WRITE_ZEROES, + ZTEST_IO_TRUNCATE, + ZTEST_IO_SETATTR, + ZTEST_IO_TYPES +}; typedef struct ztest_block_tag { + uint64_t bt_magic; uint64_t bt_objset; uint64_t bt_object; uint64_t bt_offset; + uint64_t bt_gen; uint64_t bt_txg; - uint64_t bt_thread; - uint64_t bt_seq; + uint64_t bt_crtxg; } ztest_block_tag_t; -typedef struct ztest_args { - char za_pool[MAXNAMELEN]; - spa_t *za_spa; - objset_t *za_os; - zilog_t *za_zilog; - thread_t za_thread; - uint64_t za_instance; - uint64_t za_random; - uint64_t za_diroff; - uint64_t za_diroff_shared; - uint64_t za_zil_seq; - hrtime_t za_start; - hrtime_t za_stop; - hrtime_t za_kill; - /* - * Thread-local variables can go here to aid debugging. - */ - ztest_block_tag_t za_rbt; - ztest_block_tag_t za_wbt; - dmu_object_info_t za_doi; - dmu_buf_t *za_dbuf; -} ztest_args_t; +typedef struct bufwad { + uint64_t bw_index; + uint64_t bw_txg; + uint64_t bw_data; +} bufwad_t; + +/* + * XXX -- fix zfs range locks to be generic so we can use them here. + */ +typedef enum { + RL_READER, + RL_WRITER, + RL_APPEND +} rl_type_t; + +typedef struct rll { + void *rll_writer; + int rll_readers; + mutex_t rll_lock; + cond_t rll_cv; +} rll_t; + +typedef struct rl { + uint64_t rl_object; + uint64_t rl_offset; + uint64_t rl_size; + rll_t *rl_lock; +} rl_t; + +#define ZTEST_RANGE_LOCKS 64 +#define ZTEST_OBJECT_LOCKS 64 -typedef void ztest_func_t(ztest_args_t *); +/* + * Object descriptor. Used as a template for object lookup/create/remove. + */ +typedef struct ztest_od { + uint64_t od_dir; + uint64_t od_object; + dmu_object_type_t od_type; + dmu_object_type_t od_crtype; + uint64_t od_blocksize; + uint64_t od_crblocksize; + uint64_t od_gen; + uint64_t od_crgen; + char od_name[MAXNAMELEN]; +} ztest_od_t; + +/* + * Per-dataset state. + */ +typedef struct ztest_ds { + objset_t *zd_os; + zilog_t *zd_zilog; + uint64_t zd_seq; + ztest_od_t *zd_od; /* debugging aid */ + char zd_name[MAXNAMELEN]; + mutex_t zd_dirobj_lock; + rll_t zd_object_lock[ZTEST_OBJECT_LOCKS]; + rll_t zd_range_lock[ZTEST_RANGE_LOCKS]; +} ztest_ds_t; + +/* + * Per-iteration state. + */ +typedef void ztest_func_t(ztest_ds_t *zd, uint64_t id); + +typedef struct ztest_info { + ztest_func_t *zi_func; /* test function */ + uint64_t zi_iters; /* iterations per execution */ + uint64_t *zi_interval; /* execute every <interval> seconds */ + uint64_t zi_call_count; /* per-pass count */ + uint64_t zi_call_time; /* per-pass time */ + uint64_t zi_call_next; /* next time to call this function */ +} ztest_info_t; /* * Note: these aren't static because we want dladdr() to work. */ ztest_func_t ztest_dmu_read_write; -ztest_func_t ztest_dmu_read_write_zcopy; ztest_func_t ztest_dmu_write_parallel; ztest_func_t ztest_dmu_object_alloc_free; +ztest_func_t ztest_dmu_commit_callbacks; ztest_func_t ztest_zap; ztest_func_t ztest_zap_parallel; -ztest_func_t ztest_traverse; -ztest_func_t ztest_dsl_prop_get_set; +ztest_func_t ztest_zil_commit; +ztest_func_t ztest_dmu_read_write_zcopy; ztest_func_t ztest_dmu_objset_create_destroy; +ztest_func_t ztest_dmu_prealloc; +ztest_func_t ztest_fzap; ztest_func_t ztest_dmu_snapshot_create_destroy; -ztest_func_t ztest_dsl_dataset_promote_busy; +ztest_func_t ztest_dsl_prop_get_set; +ztest_func_t ztest_spa_prop_get_set; ztest_func_t ztest_spa_create_destroy; ztest_func_t ztest_fault_inject; +ztest_func_t ztest_ddt_repair; +ztest_func_t ztest_dmu_snapshot_hold; ztest_func_t ztest_spa_rename; +ztest_func_t ztest_scrub; +ztest_func_t ztest_dsl_dataset_promote_busy; ztest_func_t ztest_vdev_attach_detach; ztest_func_t ztest_vdev_LUN_growth; ztest_func_t ztest_vdev_add_remove; ztest_func_t ztest_vdev_aux_add_remove; -ztest_func_t ztest_scrub; - -typedef struct ztest_info { - ztest_func_t *zi_func; /* test function */ - uint64_t zi_iters; /* iterations per execution */ - uint64_t *zi_interval; /* execute every <interval> seconds */ - uint64_t zi_calls; /* per-pass count */ - uint64_t zi_call_time; /* per-pass time */ - uint64_t zi_call_total; /* cumulative total */ - uint64_t zi_call_target; /* target cumulative total */ -} ztest_info_t; +ztest_func_t ztest_split_pool; -uint64_t zopt_always = 0; /* all the time */ -uint64_t zopt_often = 1; /* every second */ -uint64_t zopt_sometimes = 10; /* every 10 seconds */ -uint64_t zopt_rarely = 60; /* every 60 seconds */ +uint64_t zopt_always = 0ULL * NANOSEC; /* all the time */ +uint64_t zopt_incessant = 1ULL * NANOSEC / 10; /* every 1/10 second */ +uint64_t zopt_often = 1ULL * NANOSEC; /* every second */ +uint64_t zopt_sometimes = 10ULL * NANOSEC; /* every 10 seconds */ +uint64_t zopt_rarely = 60ULL * NANOSEC; /* every 60 seconds */ ztest_info_t ztest_info[] = { { ztest_dmu_read_write, 1, &zopt_always }, - { ztest_dmu_read_write_zcopy, 1, &zopt_always }, - { ztest_dmu_write_parallel, 30, &zopt_always }, + { ztest_dmu_write_parallel, 10, &zopt_always }, { ztest_dmu_object_alloc_free, 1, &zopt_always }, + { ztest_dmu_commit_callbacks, 1, &zopt_always }, { ztest_zap, 30, &zopt_always }, { ztest_zap_parallel, 100, &zopt_always }, - { ztest_dsl_prop_get_set, 1, &zopt_sometimes }, - { ztest_dmu_objset_create_destroy, 1, &zopt_sometimes }, - { ztest_dmu_snapshot_create_destroy, 1, &zopt_sometimes }, - { ztest_spa_create_destroy, 1, &zopt_sometimes }, + { ztest_split_pool, 1, &zopt_always }, + { ztest_zil_commit, 1, &zopt_incessant }, + { ztest_dmu_read_write_zcopy, 1, &zopt_often }, + { ztest_dmu_objset_create_destroy, 1, &zopt_often }, + { ztest_dsl_prop_get_set, 1, &zopt_often }, + { ztest_spa_prop_get_set, 1, &zopt_sometimes }, +#if 0 + { ztest_dmu_prealloc, 1, &zopt_sometimes }, +#endif + { ztest_fzap, 1, &zopt_sometimes }, + { ztest_dmu_snapshot_create_destroy, 1, &zopt_sometimes }, + { ztest_spa_create_destroy, 1, &zopt_sometimes }, { ztest_fault_inject, 1, &zopt_sometimes }, + { ztest_ddt_repair, 1, &zopt_sometimes }, + { ztest_dmu_snapshot_hold, 1, &zopt_sometimes }, { ztest_spa_rename, 1, &zopt_rarely }, - { ztest_vdev_attach_detach, 1, &zopt_rarely }, - { ztest_vdev_LUN_growth, 1, &zopt_rarely }, + { ztest_scrub, 1, &zopt_rarely }, { ztest_dsl_dataset_promote_busy, 1, &zopt_rarely }, - { ztest_vdev_add_remove, 1, &zopt_vdevtime }, + { ztest_vdev_attach_detach, 1, &zopt_rarely }, + { ztest_vdev_LUN_growth, 1, &zopt_rarely }, + { ztest_vdev_add_remove, 1, &zopt_vdevtime }, { ztest_vdev_aux_add_remove, 1, &zopt_vdevtime }, - { ztest_scrub, 1, &zopt_vdevtime }, }; #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t)) -#define ZTEST_SYNC_LOCKS 16 +/* + * The following struct is used to hold a list of uncalled commit callbacks. + * The callbacks are ordered by txg number. + */ +typedef struct ztest_cb_list { + mutex_t zcl_callbacks_lock; + list_t zcl_callbacks; +} ztest_cb_list_t; /* * Stuff we need to share writably between parent and child. */ typedef struct ztest_shared { - mutex_t zs_vdev_lock; - rwlock_t zs_name_lock; - uint64_t zs_vdev_primaries; - uint64_t zs_vdev_aux; + char *zs_pool; + spa_t *zs_spa; + hrtime_t zs_proc_start; + hrtime_t zs_proc_stop; + hrtime_t zs_thread_start; + hrtime_t zs_thread_stop; + hrtime_t zs_thread_kill; uint64_t zs_enospc_count; - hrtime_t zs_start_time; - hrtime_t zs_stop_time; + uint64_t zs_vdev_next_leaf; + uint64_t zs_vdev_aux; uint64_t zs_alloc; uint64_t zs_space; + mutex_t zs_vdev_lock; + rwlock_t zs_name_lock; ztest_info_t zs_info[ZTEST_FUNCS]; - mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS]; - uint64_t zs_seq[ZTEST_SYNC_LOCKS]; + uint64_t zs_splits; + uint64_t zs_mirrors; + ztest_ds_t zs_zd[]; } ztest_shared_t; +#define ID_PARALLEL -1ULL + static char ztest_dev_template[] = "%s/%s.%llua"; static char ztest_aux_template[] = "%s/%s.%s.%llu"; -static ztest_shared_t *ztest_shared; +ztest_shared_t *ztest_shared; +uint64_t *ztest_seq; static int ztest_random_fd; static int ztest_dump_core = 1; -static uint64_t metaslab_sz; static boolean_t ztest_exiting; +/* Global commit callback list */ +static ztest_cb_list_t zcl; + extern uint64_t metaslab_gang_bang; extern uint64_t metaslab_df_alloc_threshold; +static uint64_t metaslab_sz; -#define ZTEST_DIROBJ 1 -#define ZTEST_MICROZAP_OBJ 2 -#define ZTEST_FATZAP_OBJ 3 - -#define ZTEST_DIROBJ_BLOCKSIZE (1 << 10) -#define ZTEST_DIRSIZE 256 +enum ztest_object { + ZTEST_META_DNODE = 0, + ZTEST_DIROBJ, + ZTEST_OBJECTS +}; static void usage(boolean_t) __NORETURN; @@ -377,21 +468,22 @@ usage(boolean_t requested) (void) fprintf(fp, "Usage: %s\n" "\t[-v vdevs (default: %llu)]\n" "\t[-s size_of_each_vdev (default: %s)]\n" - "\t[-a alignment_shift (default: %d) (use 0 for random)]\n" + "\t[-a alignment_shift (default: %d)] use 0 for random\n" "\t[-m mirror_copies (default: %d)]\n" "\t[-r raidz_disks (default: %d)]\n" "\t[-R raidz_parity (default: %d)]\n" "\t[-d datasets (default: %d)]\n" "\t[-t threads (default: %d)]\n" "\t[-g gang_block_threshold (default: %s)]\n" - "\t[-i initialize pool i times (default: %d)]\n" - "\t[-k kill percentage (default: %llu%%)]\n" + "\t[-i init_count (default: %d)] initialize pool i times\n" + "\t[-k kill_percentage (default: %llu%%)]\n" "\t[-p pool_name (default: %s)]\n" - "\t[-f file directory for vdev files (default: %s)]\n" - "\t[-V(erbose)] (use multiple times for ever more blather)\n" - "\t[-E(xisting)] (use existing pool instead of creating new one)\n" - "\t[-T time] total run time (default: %llu sec)\n" - "\t[-P passtime] time per pass (default: %llu sec)\n" + "\t[-f dir (default: %s)] file directory for vdev files\n" + "\t[-V] verbose (use multiple times for ever more blather)\n" + "\t[-E] use existing pool instead of creating new one\n" + "\t[-T time (default: %llu sec)] total run time\n" + "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n" + "\t[-P passtime (default: %llu sec)] time per pass\n" "\t[-h] (print help)\n" "", cmdname, @@ -409,31 +501,11 @@ usage(boolean_t requested) zopt_pool, /* -p */ zopt_dir, /* -f */ (u_longlong_t)zopt_time, /* -T */ + (u_longlong_t)zopt_maxloops, /* -F */ (u_longlong_t)zopt_passtime); /* -P */ exit(requested ? 0 : 1); } -static uint64_t -ztest_random(uint64_t range) -{ - uint64_t r; - - if (range == 0) - return (0); - - if (read(ztest_random_fd, &r, sizeof (r)) != sizeof (r)) - fatal(1, "short read from /dev/urandom"); - - return (r % range); -} - -/* ARGSUSED */ -static void -ztest_record_enospc(char *s) -{ - ztest_shared->zs_enospc_count++; -} - static void process_options(int argc, char **argv) { @@ -444,7 +516,7 @@ process_options(int argc, char **argv) metaslab_gang_bang = 32 << 10; while ((opt = getopt(argc, argv, - "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:h")) != EOF) { + "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:")) != EOF) { value = 0; switch (opt) { case 'v': @@ -460,6 +532,7 @@ process_options(int argc, char **argv) case 'k': case 'T': case 'P': + case 'F': value = nicenumtoull(optarg); } switch (opt) { @@ -514,6 +587,9 @@ process_options(int argc, char **argv) case 'P': zopt_passtime = MAX(1, value); break; + case 'F': + zopt_maxloops = MAX(1, value); + break; case 'h': usage(B_TRUE); break; @@ -526,8 +602,37 @@ process_options(int argc, char **argv) zopt_raidz_parity = MIN(zopt_raidz_parity, zopt_raidz - 1); - zopt_vdevtime = (zopt_vdevs > 0 ? zopt_time / zopt_vdevs : UINT64_MAX); - zopt_maxfaults = MAX(zopt_mirrors, 1) * (zopt_raidz_parity + 1) - 1; + zopt_vdevtime = (zopt_vdevs > 0 ? zopt_time * NANOSEC / zopt_vdevs : + UINT64_MAX >> 2); +} + +static void +ztest_kill(ztest_shared_t *zs) +{ + zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(zs->zs_spa)); + zs->zs_space = metaslab_class_get_space(spa_normal_class(zs->zs_spa)); + (void) kill(getpid(), SIGKILL); +} + +static uint64_t +ztest_random(uint64_t range) +{ + uint64_t r; + + if (range == 0) + return (0); + + if (read(ztest_random_fd, &r, sizeof (r)) != sizeof (r)) + fatal(1, "short read from /dev/urandom"); + + return (r % range); +} + +/* ARGSUSED */ +static void +ztest_record_enospc(const char *s) +{ + ztest_shared->zs_enospc_count++; } static uint64_t @@ -556,7 +661,7 @@ make_vdev_file(char *path, char *aux, size_t size, uint64_t ashift) (void) sprintf(path, ztest_aux_template, zopt_dir, zopt_pool, aux, vdev); } else { - vdev = ztest_shared->zs_vdev_primaries++; + vdev = ztest_shared->zs_vdev_next_leaf++; (void) sprintf(path, ztest_dev_template, zopt_dir, zopt_pool, vdev); } @@ -667,100 +772,804 @@ make_vdev_root(char *path, char *aux, size_t size, uint64_t ashift, return (root); } +static int +ztest_random_blocksize(void) +{ + return (1 << (SPA_MINBLOCKSHIFT + + ztest_random(SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1))); +} + +static int +ztest_random_ibshift(void) +{ + return (DN_MIN_INDBLKSHIFT + + ztest_random(DN_MAX_INDBLKSHIFT - DN_MIN_INDBLKSHIFT + 1)); +} + +static uint64_t +ztest_random_vdev_top(spa_t *spa, boolean_t log_ok) +{ + uint64_t top; + vdev_t *rvd = spa->spa_root_vdev; + vdev_t *tvd; + + ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0); + + do { + top = ztest_random(rvd->vdev_children); + tvd = rvd->vdev_child[top]; + } while (tvd->vdev_ishole || (tvd->vdev_islog && !log_ok) || + tvd->vdev_mg == NULL || tvd->vdev_mg->mg_class == NULL); + + return (top); +} + +static uint64_t +ztest_random_dsl_prop(zfs_prop_t prop) +{ + uint64_t value; + + do { + value = zfs_prop_random_value(prop, ztest_random(-1ULL)); + } while (prop == ZFS_PROP_CHECKSUM && value == ZIO_CHECKSUM_OFF); + + return (value); +} + +static int +ztest_dsl_prop_set_uint64(char *osname, zfs_prop_t prop, uint64_t value, + boolean_t inherit) +{ + const char *propname = zfs_prop_to_name(prop); + const char *valname; + char setpoint[MAXPATHLEN]; + uint64_t curval; + int error; + + error = dsl_prop_set(osname, propname, + (inherit ? ZPROP_SRC_NONE : ZPROP_SRC_LOCAL), + sizeof (value), 1, &value); + + if (error == ENOSPC) { + ztest_record_enospc(FTAG); + return (error); + } + ASSERT3U(error, ==, 0); + + VERIFY3U(dsl_prop_get(osname, propname, sizeof (curval), + 1, &curval, setpoint), ==, 0); + + if (zopt_verbose >= 6) { + VERIFY(zfs_prop_index_to_string(prop, curval, &valname) == 0); + (void) printf("%s %s = %s at '%s'\n", + osname, propname, valname, setpoint); + } + + return (error); +} + +static int +ztest_spa_prop_set_uint64(ztest_shared_t *zs, zpool_prop_t prop, uint64_t value) +{ + spa_t *spa = zs->zs_spa; + nvlist_t *props = NULL; + int error; + + VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0); + VERIFY(nvlist_add_uint64(props, zpool_prop_to_name(prop), value) == 0); + + error = spa_prop_set(spa, props); + + nvlist_free(props); + + if (error == ENOSPC) { + ztest_record_enospc(FTAG); + return (error); + } + ASSERT3U(error, ==, 0); + + return (error); +} + +static void +ztest_rll_init(rll_t *rll) +{ + rll->rll_writer = NULL; + rll->rll_readers = 0; + VERIFY(_mutex_init(&rll->rll_lock, USYNC_THREAD, NULL) == 0); + VERIFY(cond_init(&rll->rll_cv, USYNC_THREAD, NULL) == 0); +} + +static void +ztest_rll_destroy(rll_t *rll) +{ + ASSERT(rll->rll_writer == NULL); + ASSERT(rll->rll_readers == 0); + VERIFY(_mutex_destroy(&rll->rll_lock) == 0); + VERIFY(cond_destroy(&rll->rll_cv) == 0); +} + +static void +ztest_rll_lock(rll_t *rll, rl_type_t type) +{ + VERIFY(mutex_lock(&rll->rll_lock) == 0); + + if (type == RL_READER) { + while (rll->rll_writer != NULL) + (void) cond_wait(&rll->rll_cv, &rll->rll_lock); + rll->rll_readers++; + } else { + while (rll->rll_writer != NULL || rll->rll_readers) + (void) cond_wait(&rll->rll_cv, &rll->rll_lock); + rll->rll_writer = curthread; + } + + VERIFY(mutex_unlock(&rll->rll_lock) == 0); +} + +static void +ztest_rll_unlock(rll_t *rll) +{ + VERIFY(mutex_lock(&rll->rll_lock) == 0); + + if (rll->rll_writer) { + ASSERT(rll->rll_readers == 0); + rll->rll_writer = NULL; + } else { + ASSERT(rll->rll_readers != 0); + ASSERT(rll->rll_writer == NULL); + rll->rll_readers--; + } + + if (rll->rll_writer == NULL && rll->rll_readers == 0) + VERIFY(cond_broadcast(&rll->rll_cv) == 0); + + VERIFY(mutex_unlock(&rll->rll_lock) == 0); +} + +static void +ztest_object_lock(ztest_ds_t *zd, uint64_t object, rl_type_t type) +{ + rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)]; + + ztest_rll_lock(rll, type); +} + +static void +ztest_object_unlock(ztest_ds_t *zd, uint64_t object) +{ + rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)]; + + ztest_rll_unlock(rll); +} + +static rl_t * +ztest_range_lock(ztest_ds_t *zd, uint64_t object, uint64_t offset, + uint64_t size, rl_type_t type) +{ + uint64_t hash = object ^ (offset % (ZTEST_RANGE_LOCKS + 1)); + rll_t *rll = &zd->zd_range_lock[hash & (ZTEST_RANGE_LOCKS - 1)]; + rl_t *rl; + + rl = umem_alloc(sizeof (*rl), UMEM_NOFAIL); + rl->rl_object = object; + rl->rl_offset = offset; + rl->rl_size = size; + rl->rl_lock = rll; + + ztest_rll_lock(rll, type); + + return (rl); +} + +static void +ztest_range_unlock(rl_t *rl) +{ + rll_t *rll = rl->rl_lock; + + ztest_rll_unlock(rll); + + umem_free(rl, sizeof (*rl)); +} + static void -ztest_set_random_blocksize(objset_t *os, uint64_t object, dmu_tx_t *tx) +ztest_zd_init(ztest_ds_t *zd, objset_t *os) +{ + zd->zd_os = os; + zd->zd_zilog = dmu_objset_zil(os); + zd->zd_seq = 0; + dmu_objset_name(os, zd->zd_name); + + VERIFY(_mutex_init(&zd->zd_dirobj_lock, USYNC_THREAD, NULL) == 0); + + for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++) + ztest_rll_init(&zd->zd_object_lock[l]); + + for (int l = 0; l < ZTEST_RANGE_LOCKS; l++) + ztest_rll_init(&zd->zd_range_lock[l]); +} + +static void +ztest_zd_fini(ztest_ds_t *zd) +{ + VERIFY(_mutex_destroy(&zd->zd_dirobj_lock) == 0); + + for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++) + ztest_rll_destroy(&zd->zd_object_lock[l]); + + for (int l = 0; l < ZTEST_RANGE_LOCKS; l++) + ztest_rll_destroy(&zd->zd_range_lock[l]); +} + +#define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT) + +static uint64_t +ztest_tx_assign(dmu_tx_t *tx, uint64_t txg_how, const char *tag) { - int bs = SPA_MINBLOCKSHIFT + - ztest_random(SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1); - int ibs = DN_MIN_INDBLKSHIFT + - ztest_random(DN_MAX_INDBLKSHIFT - DN_MIN_INDBLKSHIFT + 1); + uint64_t txg; int error; - error = dmu_object_set_blocksize(os, object, 1ULL << bs, ibs, tx); + /* + * Attempt to assign tx to some transaction group. + */ + error = dmu_tx_assign(tx, txg_how); if (error) { - char osname[300]; - dmu_objset_name(os, osname); - fatal(0, "dmu_object_set_blocksize('%s', %llu, %d, %d) = %d", - osname, object, 1 << bs, ibs, error); + if (error == ERESTART) { + ASSERT(txg_how == TXG_NOWAIT); + dmu_tx_wait(tx); + } else { + ASSERT3U(error, ==, ENOSPC); + ztest_record_enospc(tag); + } + dmu_tx_abort(tx); + return (0); } + txg = dmu_tx_get_txg(tx); + ASSERT(txg != 0); + return (txg); } -static uint8_t -ztest_random_checksum(void) +static void +ztest_pattern_set(void *buf, uint64_t size, uint64_t value) { - uint8_t checksum; + uint64_t *ip = buf; + uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size); - do { - checksum = ztest_random(ZIO_CHECKSUM_FUNCTIONS); - } while (zio_checksum_table[checksum].ci_zbt); + while (ip < ip_end) + *ip++ = value; +} - if (checksum == ZIO_CHECKSUM_OFF) - checksum = ZIO_CHECKSUM_ON; +static boolean_t +ztest_pattern_match(void *buf, uint64_t size, uint64_t value) +{ + uint64_t *ip = buf; + uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size); + uint64_t diff = 0; + + while (ip < ip_end) + diff |= (value - *ip++); + + return (diff == 0); +} - return (checksum); +static void +ztest_bt_generate(ztest_block_tag_t *bt, objset_t *os, uint64_t object, + uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg) +{ + bt->bt_magic = BT_MAGIC; + bt->bt_objset = dmu_objset_id(os); + bt->bt_object = object; + bt->bt_offset = offset; + bt->bt_gen = gen; + bt->bt_txg = txg; + bt->bt_crtxg = crtxg; +} + +static void +ztest_bt_verify(ztest_block_tag_t *bt, objset_t *os, uint64_t object, + uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg) +{ + ASSERT(bt->bt_magic == BT_MAGIC); + ASSERT(bt->bt_objset == dmu_objset_id(os)); + ASSERT(bt->bt_object == object); + ASSERT(bt->bt_offset == offset); + ASSERT(bt->bt_gen <= gen); + ASSERT(bt->bt_txg <= txg); + ASSERT(bt->bt_crtxg == crtxg); } -static uint8_t -ztest_random_compress(void) +static ztest_block_tag_t * +ztest_bt_bonus(dmu_buf_t *db) { - return ((uint8_t)ztest_random(ZIO_COMPRESS_FUNCTIONS)); + dmu_object_info_t doi; + ztest_block_tag_t *bt; + + dmu_object_info_from_db(db, &doi); + ASSERT3U(doi.doi_bonus_size, <=, db->db_size); + ASSERT3U(doi.doi_bonus_size, >=, sizeof (*bt)); + bt = (void *)((char *)db->db_data + doi.doi_bonus_size - sizeof (*bt)); + + return (bt); } +/* + * ZIL logging ops + */ + +#define lrz_type lr_mode +#define lrz_blocksize lr_uid +#define lrz_ibshift lr_gid +#define lrz_bonustype lr_rdev +#define lrz_bonuslen lr_crtime[1] + +static uint64_t +ztest_log_create(ztest_ds_t *zd, dmu_tx_t *tx, lr_create_t *lr) +{ + char *name = (void *)(lr + 1); /* name follows lr */ + size_t namesize = strlen(name) + 1; + itx_t *itx; + + if (zil_replaying(zd->zd_zilog, tx)) + return (0); + + itx = zil_itx_create(TX_CREATE, sizeof (*lr) + namesize); + bcopy(&lr->lr_common + 1, &itx->itx_lr + 1, + sizeof (*lr) + namesize - sizeof (lr_t)); + + return (zil_itx_assign(zd->zd_zilog, itx, tx)); +} + +static uint64_t +ztest_log_remove(ztest_ds_t *zd, dmu_tx_t *tx, lr_remove_t *lr) +{ + char *name = (void *)(lr + 1); /* name follows lr */ + size_t namesize = strlen(name) + 1; + itx_t *itx; + + if (zil_replaying(zd->zd_zilog, tx)) + return (0); + + itx = zil_itx_create(TX_REMOVE, sizeof (*lr) + namesize); + bcopy(&lr->lr_common + 1, &itx->itx_lr + 1, + sizeof (*lr) + namesize - sizeof (lr_t)); + + return (zil_itx_assign(zd->zd_zilog, itx, tx)); +} + +static uint64_t +ztest_log_write(ztest_ds_t *zd, dmu_tx_t *tx, lr_write_t *lr) +{ + itx_t *itx; + itx_wr_state_t write_state = ztest_random(WR_NUM_STATES); + + if (zil_replaying(zd->zd_zilog, tx)) + return (0); + + if (lr->lr_length > ZIL_MAX_LOG_DATA) + write_state = WR_INDIRECT; + + itx = zil_itx_create(TX_WRITE, + sizeof (*lr) + (write_state == WR_COPIED ? lr->lr_length : 0)); + + if (write_state == WR_COPIED && + dmu_read(zd->zd_os, lr->lr_foid, lr->lr_offset, lr->lr_length, + ((lr_write_t *)&itx->itx_lr) + 1, DMU_READ_NO_PREFETCH) != 0) { + zil_itx_destroy(itx); + itx = zil_itx_create(TX_WRITE, sizeof (*lr)); + write_state = WR_NEED_COPY; + } + itx->itx_private = zd; + itx->itx_wr_state = write_state; + itx->itx_sync = (ztest_random(8) == 0); + itx->itx_sod += (write_state == WR_NEED_COPY ? lr->lr_length : 0); + + bcopy(&lr->lr_common + 1, &itx->itx_lr + 1, + sizeof (*lr) - sizeof (lr_t)); + + return (zil_itx_assign(zd->zd_zilog, itx, tx)); +} + +static uint64_t +ztest_log_truncate(ztest_ds_t *zd, dmu_tx_t *tx, lr_truncate_t *lr) +{ + itx_t *itx; + + if (zil_replaying(zd->zd_zilog, tx)) + return (0); + + itx = zil_itx_create(TX_TRUNCATE, sizeof (*lr)); + bcopy(&lr->lr_common + 1, &itx->itx_lr + 1, + sizeof (*lr) - sizeof (lr_t)); + + return (zil_itx_assign(zd->zd_zilog, itx, tx)); +} + +static uint64_t +ztest_log_setattr(ztest_ds_t *zd, dmu_tx_t *tx, lr_setattr_t *lr) +{ + itx_t *itx; + + if (zil_replaying(zd->zd_zilog, tx)) + return (0); + + itx = zil_itx_create(TX_SETATTR, sizeof (*lr)); + bcopy(&lr->lr_common + 1, &itx->itx_lr + 1, + sizeof (*lr) - sizeof (lr_t)); + + return (zil_itx_assign(zd->zd_zilog, itx, tx)); +} + +/* + * ZIL replay ops + */ static int -ztest_replay_create(objset_t *os, lr_create_t *lr, boolean_t byteswap) +ztest_replay_create(ztest_ds_t *zd, lr_create_t *lr, boolean_t byteswap) { + char *name = (void *)(lr + 1); /* name follows lr */ + objset_t *os = zd->zd_os; + ztest_block_tag_t *bbt; + dmu_buf_t *db; dmu_tx_t *tx; - int error; + uint64_t txg; + int error = 0; if (byteswap) byteswap_uint64_array(lr, sizeof (*lr)); + ASSERT(lr->lr_doid == ZTEST_DIROBJ); + ASSERT(name[0] != '\0'); + tx = dmu_tx_create(os); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); + + dmu_tx_hold_zap(tx, lr->lr_doid, B_TRUE, name); + + if (lr->lrz_type == DMU_OT_ZAP_OTHER) { + dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL); + } else { + dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); + } + + txg = ztest_tx_assign(tx, TXG_WAIT, FTAG); + if (txg == 0) + return (ENOSPC); + + ASSERT(dmu_objset_zil(os)->zl_replay == !!lr->lr_foid); + + if (lr->lrz_type == DMU_OT_ZAP_OTHER) { + if (lr->lr_foid == 0) { + lr->lr_foid = zap_create(os, + lr->lrz_type, lr->lrz_bonustype, + lr->lrz_bonuslen, tx); + } else { + error = zap_create_claim(os, lr->lr_foid, + lr->lrz_type, lr->lrz_bonustype, + lr->lrz_bonuslen, tx); + } + } else { + if (lr->lr_foid == 0) { + lr->lr_foid = dmu_object_alloc(os, + lr->lrz_type, 0, lr->lrz_bonustype, + lr->lrz_bonuslen, tx); + } else { + error = dmu_object_claim(os, lr->lr_foid, + lr->lrz_type, 0, lr->lrz_bonustype, + lr->lrz_bonuslen, tx); + } + } + if (error) { - dmu_tx_abort(tx); + ASSERT3U(error, ==, EEXIST); + ASSERT(zd->zd_zilog->zl_replay); + dmu_tx_commit(tx); return (error); } - error = dmu_object_claim(os, lr->lr_doid, lr->lr_mode, 0, - DMU_OT_NONE, 0, tx); - ASSERT3U(error, ==, 0); + ASSERT(lr->lr_foid != 0); + + if (lr->lrz_type != DMU_OT_ZAP_OTHER) + VERIFY3U(0, ==, dmu_object_set_blocksize(os, lr->lr_foid, + lr->lrz_blocksize, lr->lrz_ibshift, tx)); + + VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db)); + bbt = ztest_bt_bonus(db); + dmu_buf_will_dirty(db, tx); + ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_gen, txg, txg); + dmu_buf_rele(db, FTAG); + + VERIFY3U(0, ==, zap_add(os, lr->lr_doid, name, sizeof (uint64_t), 1, + &lr->lr_foid, tx)); + + (void) ztest_log_create(zd, tx, lr); + dmu_tx_commit(tx); - if (zopt_verbose >= 5) { - char osname[MAXNAMELEN]; - dmu_objset_name(os, osname); - (void) printf("replay create of %s object %llu" - " in txg %llu = %d\n", - osname, (u_longlong_t)lr->lr_doid, - (u_longlong_t)dmu_tx_get_txg(tx), error); + return (0); +} + +static int +ztest_replay_remove(ztest_ds_t *zd, lr_remove_t *lr, boolean_t byteswap) +{ + char *name = (void *)(lr + 1); /* name follows lr */ + objset_t *os = zd->zd_os; + dmu_object_info_t doi; + dmu_tx_t *tx; + uint64_t object, txg; + + if (byteswap) + byteswap_uint64_array(lr, sizeof (*lr)); + + ASSERT(lr->lr_doid == ZTEST_DIROBJ); + ASSERT(name[0] != '\0'); + + VERIFY3U(0, ==, + zap_lookup(os, lr->lr_doid, name, sizeof (object), 1, &object)); + ASSERT(object != 0); + + ztest_object_lock(zd, object, RL_WRITER); + + VERIFY3U(0, ==, dmu_object_info(os, object, &doi)); + + tx = dmu_tx_create(os); + + dmu_tx_hold_zap(tx, lr->lr_doid, B_FALSE, name); + dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END); + + txg = ztest_tx_assign(tx, TXG_WAIT, FTAG); + if (txg == 0) { + ztest_object_unlock(zd, object); + return (ENOSPC); } - return (error); + if (doi.doi_type == DMU_OT_ZAP_OTHER) { + VERIFY3U(0, ==, zap_destroy(os, object, tx)); + } else { + VERIFY3U(0, ==, dmu_object_free(os, object, tx)); + } + + VERIFY3U(0, ==, zap_remove(os, lr->lr_doid, name, tx)); + + (void) ztest_log_remove(zd, tx, lr); + + dmu_tx_commit(tx); + + ztest_object_unlock(zd, object); + + return (0); } static int -ztest_replay_remove(objset_t *os, lr_remove_t *lr, boolean_t byteswap) +ztest_replay_write(ztest_ds_t *zd, lr_write_t *lr, boolean_t byteswap) { + objset_t *os = zd->zd_os; + void *data = lr + 1; /* data follows lr */ + uint64_t offset, length; + ztest_block_tag_t *bt = data; + ztest_block_tag_t *bbt; + uint64_t gen, txg, lrtxg, crtxg; + dmu_object_info_t doi; dmu_tx_t *tx; - int error; + dmu_buf_t *db; + arc_buf_t *abuf = NULL; + rl_t *rl; if (byteswap) byteswap_uint64_array(lr, sizeof (*lr)); + offset = lr->lr_offset; + length = lr->lr_length; + + /* If it's a dmu_sync() block, write the whole block */ + if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) { + uint64_t blocksize = BP_GET_LSIZE(&lr->lr_blkptr); + if (length < blocksize) { + offset -= offset % blocksize; + length = blocksize; + } + } + + if (bt->bt_magic == BSWAP_64(BT_MAGIC)) + byteswap_uint64_array(bt, sizeof (*bt)); + + if (bt->bt_magic != BT_MAGIC) + bt = NULL; + + ztest_object_lock(zd, lr->lr_foid, RL_READER); + rl = ztest_range_lock(zd, lr->lr_foid, offset, length, RL_WRITER); + + VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db)); + + dmu_object_info_from_db(db, &doi); + + bbt = ztest_bt_bonus(db); + ASSERT3U(bbt->bt_magic, ==, BT_MAGIC); + gen = bbt->bt_gen; + crtxg = bbt->bt_crtxg; + lrtxg = lr->lr_common.lrc_txg; + tx = dmu_tx_create(os); - dmu_tx_hold_free(tx, lr->lr_doid, 0, DMU_OBJECT_END); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - dmu_tx_abort(tx); - return (error); + + dmu_tx_hold_write(tx, lr->lr_foid, offset, length); + + if (ztest_random(8) == 0 && length == doi.doi_data_block_size && + P2PHASE(offset, length) == 0) + abuf = dmu_request_arcbuf(db, length); + + txg = ztest_tx_assign(tx, TXG_WAIT, FTAG); + if (txg == 0) { + if (abuf != NULL) + dmu_return_arcbuf(abuf); + dmu_buf_rele(db, FTAG); + ztest_range_unlock(rl); + ztest_object_unlock(zd, lr->lr_foid); + return (ENOSPC); } - error = dmu_object_free(os, lr->lr_doid, tx); + if (bt != NULL) { + /* + * Usually, verify the old data before writing new data -- + * but not always, because we also want to verify correct + * behavior when the data was not recently read into cache. + */ + ASSERT(offset % doi.doi_data_block_size == 0); + if (ztest_random(4) != 0) { + int prefetch = ztest_random(2) ? + DMU_READ_PREFETCH : DMU_READ_NO_PREFETCH; + ztest_block_tag_t rbt; + + VERIFY(dmu_read(os, lr->lr_foid, offset, + sizeof (rbt), &rbt, prefetch) == 0); + if (rbt.bt_magic == BT_MAGIC) { + ztest_bt_verify(&rbt, os, lr->lr_foid, + offset, gen, txg, crtxg); + } + } + + /* + * Writes can appear to be newer than the bonus buffer because + * the ztest_get_data() callback does a dmu_read() of the + * open-context data, which may be different than the data + * as it was when the write was generated. + */ + if (zd->zd_zilog->zl_replay) { + ztest_bt_verify(bt, os, lr->lr_foid, offset, + MAX(gen, bt->bt_gen), MAX(txg, lrtxg), + bt->bt_crtxg); + } + + /* + * Set the bt's gen/txg to the bonus buffer's gen/txg + * so that all of the usual ASSERTs will work. + */ + ztest_bt_generate(bt, os, lr->lr_foid, offset, gen, txg, crtxg); + } + + if (abuf == NULL) { + dmu_write(os, lr->lr_foid, offset, length, data, tx); + } else { + bcopy(data, abuf->b_data, length); + dmu_assign_arcbuf(db, offset, abuf, tx); + } + + (void) ztest_log_write(zd, tx, lr); + + dmu_buf_rele(db, FTAG); + dmu_tx_commit(tx); - return (error); + ztest_range_unlock(rl); + ztest_object_unlock(zd, lr->lr_foid); + + return (0); +} + +static int +ztest_replay_truncate(ztest_ds_t *zd, lr_truncate_t *lr, boolean_t byteswap) +{ + objset_t *os = zd->zd_os; + dmu_tx_t *tx; + uint64_t txg; + rl_t *rl; + + if (byteswap) + byteswap_uint64_array(lr, sizeof (*lr)); + + ztest_object_lock(zd, lr->lr_foid, RL_READER); + rl = ztest_range_lock(zd, lr->lr_foid, lr->lr_offset, lr->lr_length, + RL_WRITER); + + tx = dmu_tx_create(os); + + dmu_tx_hold_free(tx, lr->lr_foid, lr->lr_offset, lr->lr_length); + + txg = ztest_tx_assign(tx, TXG_WAIT, FTAG); + if (txg == 0) { + ztest_range_unlock(rl); + ztest_object_unlock(zd, lr->lr_foid); + return (ENOSPC); + } + + VERIFY(dmu_free_range(os, lr->lr_foid, lr->lr_offset, + lr->lr_length, tx) == 0); + + (void) ztest_log_truncate(zd, tx, lr); + + dmu_tx_commit(tx); + + ztest_range_unlock(rl); + ztest_object_unlock(zd, lr->lr_foid); + + return (0); +} + +static int +ztest_replay_setattr(ztest_ds_t *zd, lr_setattr_t *lr, boolean_t byteswap) +{ + objset_t *os = zd->zd_os; + dmu_tx_t *tx; + dmu_buf_t *db; + ztest_block_tag_t *bbt; + uint64_t txg, lrtxg, crtxg; + + if (byteswap) + byteswap_uint64_array(lr, sizeof (*lr)); + + ztest_object_lock(zd, lr->lr_foid, RL_WRITER); + + VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db)); + + tx = dmu_tx_create(os); + dmu_tx_hold_bonus(tx, lr->lr_foid); + + txg = ztest_tx_assign(tx, TXG_WAIT, FTAG); + if (txg == 0) { + dmu_buf_rele(db, FTAG); + ztest_object_unlock(zd, lr->lr_foid); + return (ENOSPC); + } + + bbt = ztest_bt_bonus(db); + ASSERT3U(bbt->bt_magic, ==, BT_MAGIC); + crtxg = bbt->bt_crtxg; + lrtxg = lr->lr_common.lrc_txg; + + if (zd->zd_zilog->zl_replay) { + ASSERT(lr->lr_size != 0); + ASSERT(lr->lr_mode != 0); + ASSERT(lrtxg != 0); + } else { + /* + * Randomly change the size and increment the generation. + */ + lr->lr_size = (ztest_random(db->db_size / sizeof (*bbt)) + 1) * + sizeof (*bbt); + lr->lr_mode = bbt->bt_gen + 1; + ASSERT(lrtxg == 0); + } + + /* + * Verify that the current bonus buffer is not newer than our txg. + */ + ztest_bt_verify(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode, + MAX(txg, lrtxg), crtxg); + + dmu_buf_will_dirty(db, tx); + + ASSERT3U(lr->lr_size, >=, sizeof (*bbt)); + ASSERT3U(lr->lr_size, <=, db->db_size); + VERIFY3U(dmu_set_bonus(db, lr->lr_size, tx), ==, 0); + bbt = ztest_bt_bonus(db); + + ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode, txg, crtxg); + + dmu_buf_rele(db, FTAG); + + (void) ztest_log_setattr(zd, tx, lr); + + dmu_tx_commit(tx); + + ztest_object_unlock(zd, lr->lr_foid); + + return (0); } zil_replay_func_t *ztest_replay_vector[TX_MAX_TYPE] = { @@ -773,20 +1582,491 @@ zil_replay_func_t *ztest_replay_vector[TX_MAX_TYPE] = { NULL, /* TX_RMDIR */ NULL, /* TX_LINK */ NULL, /* TX_RENAME */ - NULL, /* TX_WRITE */ - NULL, /* TX_TRUNCATE */ - NULL, /* TX_SETATTR */ + ztest_replay_write, /* TX_WRITE */ + ztest_replay_truncate, /* TX_TRUNCATE */ + ztest_replay_setattr, /* TX_SETATTR */ NULL, /* TX_ACL */ + NULL, /* TX_CREATE_ACL */ + NULL, /* TX_CREATE_ATTR */ + NULL, /* TX_CREATE_ACL_ATTR */ + NULL, /* TX_MKDIR_ACL */ + NULL, /* TX_MKDIR_ATTR */ + NULL, /* TX_MKDIR_ACL_ATTR */ + NULL, /* TX_WRITE2 */ }; /* + * ZIL get_data callbacks + */ + +static void +ztest_get_done(zgd_t *zgd, int error) +{ + ztest_ds_t *zd = zgd->zgd_private; + uint64_t object = zgd->zgd_rl->rl_object; + + if (zgd->zgd_db) + dmu_buf_rele(zgd->zgd_db, zgd); + + ztest_range_unlock(zgd->zgd_rl); + ztest_object_unlock(zd, object); + + if (error == 0 && zgd->zgd_bp) + zil_add_block(zgd->zgd_zilog, zgd->zgd_bp); + + umem_free(zgd, sizeof (*zgd)); +} + +static int +ztest_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio) +{ + ztest_ds_t *zd = arg; + objset_t *os = zd->zd_os; + uint64_t object = lr->lr_foid; + uint64_t offset = lr->lr_offset; + uint64_t size = lr->lr_length; + blkptr_t *bp = &lr->lr_blkptr; + uint64_t txg = lr->lr_common.lrc_txg; + uint64_t crtxg; + dmu_object_info_t doi; + dmu_buf_t *db; + zgd_t *zgd; + int error; + + ztest_object_lock(zd, object, RL_READER); + error = dmu_bonus_hold(os, object, FTAG, &db); + if (error) { + ztest_object_unlock(zd, object); + return (error); + } + + crtxg = ztest_bt_bonus(db)->bt_crtxg; + + if (crtxg == 0 || crtxg > txg) { + dmu_buf_rele(db, FTAG); + ztest_object_unlock(zd, object); + return (ENOENT); + } + + dmu_object_info_from_db(db, &doi); + dmu_buf_rele(db, FTAG); + db = NULL; + + zgd = umem_zalloc(sizeof (*zgd), UMEM_NOFAIL); + zgd->zgd_zilog = zd->zd_zilog; + zgd->zgd_private = zd; + + if (buf != NULL) { /* immediate write */ + zgd->zgd_rl = ztest_range_lock(zd, object, offset, size, + RL_READER); + + error = dmu_read(os, object, offset, size, buf, + DMU_READ_NO_PREFETCH); + ASSERT(error == 0); + } else { + size = doi.doi_data_block_size; + if (ISP2(size)) { + offset = P2ALIGN(offset, size); + } else { + ASSERT(offset < size); + offset = 0; + } + + zgd->zgd_rl = ztest_range_lock(zd, object, offset, size, + RL_READER); + + error = dmu_buf_hold(os, object, offset, zgd, &db, + DMU_READ_NO_PREFETCH); + + if (error == 0) { + zgd->zgd_db = db; + zgd->zgd_bp = bp; + + ASSERT(db->db_offset == offset); + ASSERT(db->db_size == size); + + error = dmu_sync(zio, lr->lr_common.lrc_txg, + ztest_get_done, zgd); + + if (error == 0) + return (0); + } + } + + ztest_get_done(zgd, error); + + return (error); +} + +static void * +ztest_lr_alloc(size_t lrsize, char *name) +{ + char *lr; + size_t namesize = name ? strlen(name) + 1 : 0; + + lr = umem_zalloc(lrsize + namesize, UMEM_NOFAIL); + + if (name) + bcopy(name, lr + lrsize, namesize); + + return (lr); +} + +void +ztest_lr_free(void *lr, size_t lrsize, char *name) +{ + size_t namesize = name ? strlen(name) + 1 : 0; + + umem_free(lr, lrsize + namesize); +} + +/* + * Lookup a bunch of objects. Returns the number of objects not found. + */ +static int +ztest_lookup(ztest_ds_t *zd, ztest_od_t *od, int count) +{ + int missing = 0; + int error; + + ASSERT(_mutex_held(&zd->zd_dirobj_lock)); + + for (int i = 0; i < count; i++, od++) { + od->od_object = 0; + error = zap_lookup(zd->zd_os, od->od_dir, od->od_name, + sizeof (uint64_t), 1, &od->od_object); + if (error) { + ASSERT(error == ENOENT); + ASSERT(od->od_object == 0); + missing++; + } else { + dmu_buf_t *db; + ztest_block_tag_t *bbt; + dmu_object_info_t doi; + + ASSERT(od->od_object != 0); + ASSERT(missing == 0); /* there should be no gaps */ + + ztest_object_lock(zd, od->od_object, RL_READER); + VERIFY3U(0, ==, dmu_bonus_hold(zd->zd_os, + od->od_object, FTAG, &db)); + dmu_object_info_from_db(db, &doi); + bbt = ztest_bt_bonus(db); + ASSERT3U(bbt->bt_magic, ==, BT_MAGIC); + od->od_type = doi.doi_type; + od->od_blocksize = doi.doi_data_block_size; + od->od_gen = bbt->bt_gen; + dmu_buf_rele(db, FTAG); + ztest_object_unlock(zd, od->od_object); + } + } + + return (missing); +} + +static int +ztest_create(ztest_ds_t *zd, ztest_od_t *od, int count) +{ + int missing = 0; + + ASSERT(_mutex_held(&zd->zd_dirobj_lock)); + + for (int i = 0; i < count; i++, od++) { + if (missing) { + od->od_object = 0; + missing++; + continue; + } + + lr_create_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name); + + lr->lr_doid = od->od_dir; + lr->lr_foid = 0; /* 0 to allocate, > 0 to claim */ + lr->lrz_type = od->od_crtype; + lr->lrz_blocksize = od->od_crblocksize; + lr->lrz_ibshift = ztest_random_ibshift(); + lr->lrz_bonustype = DMU_OT_UINT64_OTHER; + lr->lrz_bonuslen = dmu_bonus_max(); + lr->lr_gen = od->od_crgen; + lr->lr_crtime[0] = time(NULL); + + if (ztest_replay_create(zd, lr, B_FALSE) != 0) { + ASSERT(missing == 0); + od->od_object = 0; + missing++; + } else { + od->od_object = lr->lr_foid; + od->od_type = od->od_crtype; + od->od_blocksize = od->od_crblocksize; + od->od_gen = od->od_crgen; + ASSERT(od->od_object != 0); + } + + ztest_lr_free(lr, sizeof (*lr), od->od_name); + } + + return (missing); +} + +static int +ztest_remove(ztest_ds_t *zd, ztest_od_t *od, int count) +{ + int missing = 0; + int error; + + ASSERT(_mutex_held(&zd->zd_dirobj_lock)); + + od += count - 1; + + for (int i = count - 1; i >= 0; i--, od--) { + if (missing) { + missing++; + continue; + } + + if (od->od_object == 0) + continue; + + lr_remove_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name); + + lr->lr_doid = od->od_dir; + + if ((error = ztest_replay_remove(zd, lr, B_FALSE)) != 0) { + ASSERT3U(error, ==, ENOSPC); + missing++; + } else { + od->od_object = 0; + } + ztest_lr_free(lr, sizeof (*lr), od->od_name); + } + + return (missing); +} + +static int +ztest_write(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size, + void *data) +{ + lr_write_t *lr; + int error; + + lr = ztest_lr_alloc(sizeof (*lr) + size, NULL); + + lr->lr_foid = object; + lr->lr_offset = offset; + lr->lr_length = size; + lr->lr_blkoff = 0; + BP_ZERO(&lr->lr_blkptr); + + bcopy(data, lr + 1, size); + + error = ztest_replay_write(zd, lr, B_FALSE); + + ztest_lr_free(lr, sizeof (*lr) + size, NULL); + + return (error); +} + +static int +ztest_truncate(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size) +{ + lr_truncate_t *lr; + int error; + + lr = ztest_lr_alloc(sizeof (*lr), NULL); + + lr->lr_foid = object; + lr->lr_offset = offset; + lr->lr_length = size; + + error = ztest_replay_truncate(zd, lr, B_FALSE); + + ztest_lr_free(lr, sizeof (*lr), NULL); + + return (error); +} + +static int +ztest_setattr(ztest_ds_t *zd, uint64_t object) +{ + lr_setattr_t *lr; + int error; + + lr = ztest_lr_alloc(sizeof (*lr), NULL); + + lr->lr_foid = object; + lr->lr_size = 0; + lr->lr_mode = 0; + + error = ztest_replay_setattr(zd, lr, B_FALSE); + + ztest_lr_free(lr, sizeof (*lr), NULL); + + return (error); +} + +static void +ztest_prealloc(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size) +{ + objset_t *os = zd->zd_os; + dmu_tx_t *tx; + uint64_t txg; + rl_t *rl; + + txg_wait_synced(dmu_objset_pool(os), 0); + + ztest_object_lock(zd, object, RL_READER); + rl = ztest_range_lock(zd, object, offset, size, RL_WRITER); + + tx = dmu_tx_create(os); + + dmu_tx_hold_write(tx, object, offset, size); + + txg = ztest_tx_assign(tx, TXG_WAIT, FTAG); + + if (txg != 0) { + dmu_prealloc(os, object, offset, size, tx); + dmu_tx_commit(tx); + txg_wait_synced(dmu_objset_pool(os), txg); + } else { + (void) dmu_free_long_range(os, object, offset, size); + } + + ztest_range_unlock(rl); + ztest_object_unlock(zd, object); +} + +static void +ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset) +{ + ztest_block_tag_t wbt; + dmu_object_info_t doi; + enum ztest_io_type io_type; + uint64_t blocksize; + void *data; + + VERIFY(dmu_object_info(zd->zd_os, object, &doi) == 0); + blocksize = doi.doi_data_block_size; + data = umem_alloc(blocksize, UMEM_NOFAIL); + + /* + * Pick an i/o type at random, biased toward writing block tags. + */ + io_type = ztest_random(ZTEST_IO_TYPES); + if (ztest_random(2) == 0) + io_type = ZTEST_IO_WRITE_TAG; + + switch (io_type) { + + case ZTEST_IO_WRITE_TAG: + ztest_bt_generate(&wbt, zd->zd_os, object, offset, 0, 0, 0); + (void) ztest_write(zd, object, offset, sizeof (wbt), &wbt); + break; + + case ZTEST_IO_WRITE_PATTERN: + (void) memset(data, 'a' + (object + offset) % 5, blocksize); + if (ztest_random(2) == 0) { + /* + * Induce fletcher2 collisions to ensure that + * zio_ddt_collision() detects and resolves them + * when using fletcher2-verify for deduplication. + */ + ((uint64_t *)data)[0] ^= 1ULL << 63; + ((uint64_t *)data)[4] ^= 1ULL << 63; + } + (void) ztest_write(zd, object, offset, blocksize, data); + break; + + case ZTEST_IO_WRITE_ZEROES: + bzero(data, blocksize); + (void) ztest_write(zd, object, offset, blocksize, data); + break; + + case ZTEST_IO_TRUNCATE: + (void) ztest_truncate(zd, object, offset, blocksize); + break; + + case ZTEST_IO_SETATTR: + (void) ztest_setattr(zd, object); + break; + } + + umem_free(data, blocksize); +} + +/* + * Initialize an object description template. + */ +static void +ztest_od_init(ztest_od_t *od, uint64_t id, char *tag, uint64_t index, + dmu_object_type_t type, uint64_t blocksize, uint64_t gen) +{ + od->od_dir = ZTEST_DIROBJ; + od->od_object = 0; + + od->od_crtype = type; + od->od_crblocksize = blocksize ? blocksize : ztest_random_blocksize(); + od->od_crgen = gen; + + od->od_type = DMU_OT_NONE; + od->od_blocksize = 0; + od->od_gen = 0; + + (void) snprintf(od->od_name, sizeof (od->od_name), "%s(%lld)[%llu]", + tag, (int64_t)id, index); +} + +/* + * Lookup or create the objects for a test using the od template. + * If the objects do not all exist, or if 'remove' is specified, + * remove any existing objects and create new ones. Otherwise, + * use the existing objects. + */ +static int +ztest_object_init(ztest_ds_t *zd, ztest_od_t *od, size_t size, boolean_t remove) +{ + int count = size / sizeof (*od); + int rv = 0; + + VERIFY(mutex_lock(&zd->zd_dirobj_lock) == 0); + if ((ztest_lookup(zd, od, count) != 0 || remove) && + (ztest_remove(zd, od, count) != 0 || + ztest_create(zd, od, count) != 0)) + rv = -1; + zd->zd_od = od; + VERIFY(mutex_unlock(&zd->zd_dirobj_lock) == 0); + + return (rv); +} + +/* ARGSUSED */ +void +ztest_zil_commit(ztest_ds_t *zd, uint64_t id) +{ + zilog_t *zilog = zd->zd_zilog; + + zil_commit(zilog, UINT64_MAX, ztest_random(ZTEST_OBJECTS)); + + /* + * Remember the committed values in zd, which is in parent/child + * shared memory. If we die, the next iteration of ztest_run() + * will verify that the log really does contain this record. + */ + mutex_enter(&zilog->zl_lock); + ASSERT(zd->zd_seq <= zilog->zl_commit_lr_seq); + zd->zd_seq = zilog->zl_commit_lr_seq; + mutex_exit(&zilog->zl_lock); +} + +/* * Verify that we can't destroy an active pool, create an existing pool, * or create a pool with a bad vdev spec. */ +/* ARGSUSED */ void -ztest_spa_create_destroy(ztest_args_t *za) +ztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id) { - int error; + ztest_shared_t *zs = ztest_shared; spa_t *spa; nvlist_t *nvroot; @@ -794,41 +2074,31 @@ ztest_spa_create_destroy(ztest_args_t *za) * Attempt to create using a bad file. */ nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1); - error = spa_create("ztest_bad_file", nvroot, NULL, NULL, NULL); + VERIFY3U(ENOENT, ==, + spa_create("ztest_bad_file", nvroot, NULL, NULL, NULL)); nvlist_free(nvroot); - if (error != ENOENT) - fatal(0, "spa_create(bad_file) = %d", error); /* * Attempt to create using a bad mirror. */ nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 2, 1); - error = spa_create("ztest_bad_mirror", nvroot, NULL, NULL, NULL); + VERIFY3U(ENOENT, ==, + spa_create("ztest_bad_mirror", nvroot, NULL, NULL, NULL)); nvlist_free(nvroot); - if (error != ENOENT) - fatal(0, "spa_create(bad_mirror) = %d", error); /* * Attempt to create an existing pool. It shouldn't matter * what's in the nvroot; we should fail with EEXIST. */ - (void) rw_rdlock(&ztest_shared->zs_name_lock); + (void) rw_rdlock(&zs->zs_name_lock); nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1); - error = spa_create(za->za_pool, nvroot, NULL, NULL, NULL); + VERIFY3U(EEXIST, ==, spa_create(zs->zs_pool, nvroot, NULL, NULL, NULL)); nvlist_free(nvroot); - if (error != EEXIST) - fatal(0, "spa_create(whatever) = %d", error); - - error = spa_open(za->za_pool, &spa, FTAG); - if (error) - fatal(0, "spa_open() = %d", error); - - error = spa_destroy(za->za_pool); - if (error != EBUSY) - fatal(0, "spa_destroy() = %d", error); - + VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG)); + VERIFY3U(EBUSY, ==, spa_destroy(zs->zs_pool)); spa_close(spa, FTAG); - (void) rw_unlock(&ztest_shared->zs_name_lock); + + (void) rw_unlock(&zs->zs_name_lock); } static vdev_t * @@ -848,49 +2118,101 @@ vdev_lookup_by_path(vdev_t *vd, const char *path) } /* + * Find the first available hole which can be used as a top-level. + */ +int +find_vdev_hole(spa_t *spa) +{ + vdev_t *rvd = spa->spa_root_vdev; + int c; + + ASSERT(spa_config_held(spa, SCL_VDEV, RW_READER) == SCL_VDEV); + + for (c = 0; c < rvd->vdev_children; c++) { + vdev_t *cvd = rvd->vdev_child[c]; + + if (cvd->vdev_ishole) + break; + } + return (c); +} + +/* * Verify that vdev_add() works as expected. */ +/* ARGSUSED */ void -ztest_vdev_add_remove(ztest_args_t *za) +ztest_vdev_add_remove(ztest_ds_t *zd, uint64_t id) { - spa_t *spa = za->za_spa; - uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz; + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; + uint64_t leaves; + uint64_t guid; nvlist_t *nvroot; int error; - (void) mutex_lock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0); + leaves = MAX(zs->zs_mirrors + zs->zs_splits, 1) * zopt_raidz; spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); - ztest_shared->zs_vdev_primaries = - spa->spa_root_vdev->vdev_children * leaves; - - spa_config_exit(spa, SCL_VDEV, FTAG); + ztest_shared->zs_vdev_next_leaf = find_vdev_hole(spa) * leaves; /* - * Make 1/4 of the devices be log devices. + * If we have slogs then remove them 1/4 of the time. */ - nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0, - ztest_random(4) == 0, zopt_raidz, zopt_mirrors, 1); + if (spa_has_slogs(spa) && ztest_random(4) == 0) { + /* + * Grab the guid from the head of the log class rotor. + */ + guid = spa_log_class(spa)->mc_rotor->mg_vd->vdev_guid; - error = spa_vdev_add(spa, nvroot); - nvlist_free(nvroot); + spa_config_exit(spa, SCL_VDEV, FTAG); - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); + /* + * We have to grab the zs_name_lock as writer to + * prevent a race between removing a slog (dmu_objset_find) + * and destroying a dataset. Removing the slog will + * grab a reference on the dataset which may cause + * dmu_objset_destroy() to fail with EBUSY thus + * leaving the dataset in an inconsistent state. + */ + VERIFY(rw_wrlock(&ztest_shared->zs_name_lock) == 0); + error = spa_vdev_remove(spa, guid, B_FALSE); + VERIFY(rw_unlock(&ztest_shared->zs_name_lock) == 0); + + if (error && error != EEXIST) + fatal(0, "spa_vdev_remove() = %d", error); + } else { + spa_config_exit(spa, SCL_VDEV, FTAG); + + /* + * Make 1/4 of the devices be log devices. + */ + nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0, + ztest_random(4) == 0, zopt_raidz, zs->zs_mirrors, 1); - if (error == ENOSPC) - ztest_record_enospc("spa_vdev_add"); - else if (error != 0) - fatal(0, "spa_vdev_add() = %d", error); + error = spa_vdev_add(spa, nvroot); + nvlist_free(nvroot); + + if (error == ENOSPC) + ztest_record_enospc("spa_vdev_add"); + else if (error != 0) + fatal(0, "spa_vdev_add() = %d", error); + } + + VERIFY(mutex_unlock(&ztest_shared->zs_vdev_lock) == 0); } /* * Verify that adding/removing aux devices (l2arc, hot spare) works as expected. */ +/* ARGSUSED */ void -ztest_vdev_aux_add_remove(ztest_args_t *za) +ztest_vdev_aux_add_remove(ztest_ds_t *zd, uint64_t id) { - spa_t *spa = za->za_spa; + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; vdev_t *rvd = spa->spa_root_vdev; spa_aux_vdev_t *sav; char *aux; @@ -905,7 +2227,7 @@ ztest_vdev_aux_add_remove(ztest_args_t *za) aux = ZPOOL_CONFIG_L2CACHE; } - (void) mutex_lock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0); spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); @@ -918,12 +2240,12 @@ ztest_vdev_aux_add_remove(ztest_args_t *za) /* * Find an unused device we can add. */ - ztest_shared->zs_vdev_aux = 0; + zs->zs_vdev_aux = 0; for (;;) { char path[MAXPATHLEN]; int c; (void) sprintf(path, ztest_aux_template, zopt_dir, - zopt_pool, aux, ztest_shared->zs_vdev_aux); + zopt_pool, aux, zs->zs_vdev_aux); for (c = 0; c < sav->sav_count; c++) if (strcmp(sav->sav_vdevs[c]->vdev_path, path) == 0) @@ -931,7 +2253,7 @@ ztest_vdev_aux_add_remove(ztest_args_t *za) if (c == sav->sav_count && vdev_lookup_by_path(rvd, path) == NULL) break; - ztest_shared->zs_vdev_aux++; + zs->zs_vdev_aux++; } } @@ -961,21 +2283,119 @@ ztest_vdev_aux_add_remove(ztest_args_t *za) fatal(0, "spa_vdev_remove(%llu) = %d", guid, error); } - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); +} + +/* + * split a pool if it has mirror tlvdevs + */ +/* ARGSUSED */ +void +ztest_split_pool(ztest_ds_t *zd, uint64_t id) +{ + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; + vdev_t *rvd = spa->spa_root_vdev; + nvlist_t *tree, **child, *config, *split, **schild; + uint_t c, children, schildren = 0, lastlogid = 0; + int error = 0; + + VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0); + + /* ensure we have a useable config; mirrors of raidz aren't supported */ + if (zs->zs_mirrors < 3 || zopt_raidz > 1) { + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); + return; + } + + /* clean up the old pool, if any */ + (void) spa_destroy("splitp"); + + spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); + + /* generate a config from the existing config */ + mutex_enter(&spa->spa_props_lock); + VERIFY(nvlist_lookup_nvlist(spa->spa_config, ZPOOL_CONFIG_VDEV_TREE, + &tree) == 0); + mutex_exit(&spa->spa_props_lock); + + VERIFY(nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child, + &children) == 0); + + schild = malloc(rvd->vdev_children * sizeof (nvlist_t *)); + for (c = 0; c < children; c++) { + vdev_t *tvd = rvd->vdev_child[c]; + nvlist_t **mchild; + uint_t mchildren; + + if (tvd->vdev_islog || tvd->vdev_ops == &vdev_hole_ops) { + VERIFY(nvlist_alloc(&schild[schildren], NV_UNIQUE_NAME, + 0) == 0); + VERIFY(nvlist_add_string(schild[schildren], + ZPOOL_CONFIG_TYPE, VDEV_TYPE_HOLE) == 0); + VERIFY(nvlist_add_uint64(schild[schildren], + ZPOOL_CONFIG_IS_HOLE, 1) == 0); + if (lastlogid == 0) + lastlogid = schildren; + ++schildren; + continue; + } + lastlogid = 0; + VERIFY(nvlist_lookup_nvlist_array(child[c], + ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0); + VERIFY(nvlist_dup(mchild[0], &schild[schildren++], 0) == 0); + } + + /* OK, create a config that can be used to split */ + VERIFY(nvlist_alloc(&split, NV_UNIQUE_NAME, 0) == 0); + VERIFY(nvlist_add_string(split, ZPOOL_CONFIG_TYPE, + VDEV_TYPE_ROOT) == 0); + VERIFY(nvlist_add_nvlist_array(split, ZPOOL_CONFIG_CHILDREN, schild, + lastlogid != 0 ? lastlogid : schildren) == 0); + + VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, 0) == 0); + VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, split) == 0); + + for (c = 0; c < schildren; c++) + nvlist_free(schild[c]); + free(schild); + nvlist_free(split); + + spa_config_exit(spa, SCL_VDEV, FTAG); + + (void) rw_wrlock(&zs->zs_name_lock); + error = spa_vdev_split_mirror(spa, "splitp", config, NULL, B_FALSE); + (void) rw_unlock(&zs->zs_name_lock); + + nvlist_free(config); + + if (error == 0) { + (void) printf("successful split - results:\n"); + mutex_enter(&spa_namespace_lock); + show_pool_stats(spa); + show_pool_stats(spa_lookup("splitp")); + mutex_exit(&spa_namespace_lock); + ++zs->zs_splits; + --zs->zs_mirrors; + } + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); + } /* * Verify that we can attach and detach devices. */ +/* ARGSUSED */ void -ztest_vdev_attach_detach(ztest_args_t *za) +ztest_vdev_attach_detach(ztest_ds_t *zd, uint64_t id) { - spa_t *spa = za->za_spa; + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; spa_aux_vdev_t *sav = &spa->spa_spares; vdev_t *rvd = spa->spa_root_vdev; vdev_t *oldvd, *newvd, *pvd; nvlist_t *root; - uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz; + uint64_t leaves; uint64_t leaf, top; uint64_t ashift = ztest_get_ashift(); uint64_t oldguid, pguid; @@ -987,7 +2407,8 @@ ztest_vdev_attach_detach(ztest_args_t *za) int oldvd_is_log; int error, expected_error; - (void) mutex_lock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0); + leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz; spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); @@ -999,7 +2420,7 @@ ztest_vdev_attach_detach(ztest_args_t *za) /* * Pick a random top-level vdev. */ - top = ztest_random(rvd->vdev_children); + top = ztest_random_vdev_top(spa, B_TRUE); /* * Pick a random leaf within it. @@ -1010,9 +2431,9 @@ ztest_vdev_attach_detach(ztest_args_t *za) * Locate this vdev. */ oldvd = rvd->vdev_child[top]; - if (zopt_mirrors >= 1) { + if (zs->zs_mirrors >= 1) { ASSERT(oldvd->vdev_ops == &vdev_mirror_ops); - ASSERT(oldvd->vdev_children >= zopt_mirrors); + ASSERT(oldvd->vdev_children >= zs->zs_mirrors); oldvd = oldvd->vdev_child[leaf / zopt_raidz]; } if (zopt_raidz > 1) { @@ -1047,7 +2468,7 @@ ztest_vdev_attach_detach(ztest_args_t *za) if (error != 0 && error != ENODEV && error != EBUSY && error != ENOTSUP) fatal(0, "detach (%s) returned %d", oldpath, error); - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); return; } @@ -1140,7 +2561,7 @@ ztest_vdev_attach_detach(ztest_args_t *za) (longlong_t)newsize, replacing, error, expected_error); } - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); } /* @@ -1180,27 +2601,48 @@ online_vdev(vdev_t *vd, void *arg) { spa_t *spa = vd->vdev_spa; vdev_t *tvd = vd->vdev_top; - vdev_t *pvd = vd->vdev_parent; uint64_t guid = vd->vdev_guid; + uint64_t generation = spa->spa_config_generation + 1; + vdev_state_t newstate = VDEV_STATE_UNKNOWN; + int error; ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE); ASSERT(vd->vdev_ops->vdev_op_leaf); /* Calling vdev_online will initialize the new metaslabs */ spa_config_exit(spa, SCL_STATE, spa); - (void) vdev_online(spa, guid, ZFS_ONLINE_EXPAND, NULL); + error = vdev_online(spa, guid, ZFS_ONLINE_EXPAND, &newstate); spa_config_enter(spa, SCL_STATE, spa, RW_READER); /* + * If vdev_online returned an error or the underlying vdev_open + * failed then we abort the expand. The only way to know that + * vdev_open fails is by checking the returned newstate. + */ + if (error || newstate != VDEV_STATE_HEALTHY) { + if (zopt_verbose >= 5) { + (void) printf("Unable to expand vdev, state %llu, " + "error %d\n", (u_longlong_t)newstate, error); + } + return (vd); + } + ASSERT3U(newstate, ==, VDEV_STATE_HEALTHY); + + /* * Since we dropped the lock we need to ensure that we're * still talking to the original vdev. It's possible this * vdev may have been detached/replaced while we were * trying to online it. */ - if (vd != vdev_lookup_by_guid(tvd, guid) || vd->vdev_parent != pvd) { - if (zopt_verbose >= 6) { - (void) printf("vdev %p has disappeared, was " - "guid %llu\n", (void *)vd, (u_longlong_t)guid); + if (generation != spa->spa_config_generation) { + if (zopt_verbose >= 5) { + (void) printf("vdev configuration has changed, " + "guid %llu, state %llu, expected gen %llu, " + "got gen %llu\n", + (u_longlong_t)guid, + (u_longlong_t)tvd->vdev_state, + (u_longlong_t)generation, + (u_longlong_t)spa->spa_config_generation); } return (vd); } @@ -1235,24 +2677,29 @@ vdev_walk_tree(vdev_t *vd, vdev_t *(*func)(vdev_t *, void *), void *arg) /* * Verify that dynamic LUN growth works as expected. */ +/* ARGSUSED */ void -ztest_vdev_LUN_growth(ztest_args_t *za) +ztest_vdev_LUN_growth(ztest_ds_t *zd, uint64_t id) { - spa_t *spa = za->za_spa; - vdev_t *vd, *tvd = NULL; + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; + vdev_t *vd, *tvd; + metaslab_class_t *mc; + metaslab_group_t *mg; size_t psize, newsize; - uint64_t spa_newsize, spa_cursize, ms_count; + uint64_t top; + uint64_t old_class_space, new_class_space, old_ms_count, new_ms_count; - (void) mutex_lock(&ztest_shared->zs_vdev_lock); - mutex_enter(&spa_namespace_lock); + VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0); spa_config_enter(spa, SCL_STATE, spa, RW_READER); - while (tvd == NULL || tvd->vdev_islog) { - uint64_t vdev; + top = ztest_random_vdev_top(spa, B_TRUE); - vdev = ztest_random(spa->spa_root_vdev->vdev_children); - tvd = spa->spa_root_vdev->vdev_child[vdev]; - } + tvd = spa->spa_root_vdev->vdev_child[top]; + mg = tvd->vdev_mg; + mc = mg->mg_class; + old_ms_count = tvd->vdev_ms_count; + old_class_space = metaslab_class_get_space(mc); /* * Determine the size of the first leaf vdev associated with @@ -1265,13 +2712,13 @@ ztest_vdev_LUN_growth(ztest_args_t *za) psize = vd->vdev_psize; /* - * We only try to expand the vdev if it's less than 4x its - * original size and it has a valid psize. + * We only try to expand the vdev if it's healthy, less than 4x its + * original size, and it has a valid psize. */ - if (psize == 0 || psize >= 4 * zopt_vdev_size) { + if (tvd->vdev_state != VDEV_STATE_HEALTHY || + psize == 0 || psize >= 4 * zopt_vdev_size) { spa_config_exit(spa, SCL_STATE, spa); - mutex_exit(&spa_namespace_lock); - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); return; } ASSERT(psize > 0); @@ -1279,13 +2726,10 @@ ztest_vdev_LUN_growth(ztest_args_t *za) ASSERT3U(newsize, >, psize); if (zopt_verbose >= 6) { - (void) printf("Expanding vdev %s from %lu to %lu\n", + (void) printf("Expanding LUN %s from %lu to %lu\n", vd->vdev_path, (ulong_t)psize, (ulong_t)newsize); } - spa_cursize = spa_get_space(spa); - ms_count = tvd->vdev_ms_count; - /* * Growing the vdev is a two step process: * 1). expand the physical size (i.e. relabel) @@ -1296,166 +2740,194 @@ ztest_vdev_LUN_growth(ztest_args_t *za) tvd->vdev_state != VDEV_STATE_HEALTHY) { if (zopt_verbose >= 5) { (void) printf("Could not expand LUN because " - "some vdevs were not healthy\n"); + "the vdev configuration changed.\n"); } - (void) spa_config_exit(spa, SCL_STATE, spa); - mutex_exit(&spa_namespace_lock); - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); + spa_config_exit(spa, SCL_STATE, spa); + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); return; } - (void) spa_config_exit(spa, SCL_STATE, spa); - mutex_exit(&spa_namespace_lock); + spa_config_exit(spa, SCL_STATE, spa); /* * Expanding the LUN will update the config asynchronously, * thus we must wait for the async thread to complete any * pending tasks before proceeding. */ - mutex_enter(&spa->spa_async_lock); - while (spa->spa_async_thread != NULL || spa->spa_async_tasks) - cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); - mutex_exit(&spa->spa_async_lock); + for (;;) { + boolean_t done; + mutex_enter(&spa->spa_async_lock); + done = (spa->spa_async_thread == NULL && !spa->spa_async_tasks); + mutex_exit(&spa->spa_async_lock); + if (done) + break; + txg_wait_synced(spa_get_dsl(spa), 0); + (void) poll(NULL, 0, 100); + } spa_config_enter(spa, SCL_STATE, spa, RW_READER); - spa_newsize = spa_get_space(spa); + + tvd = spa->spa_root_vdev->vdev_child[top]; + new_ms_count = tvd->vdev_ms_count; + new_class_space = metaslab_class_get_space(mc); + + if (tvd->vdev_mg != mg || mg->mg_class != mc) { + if (zopt_verbose >= 5) { + (void) printf("Could not verify LUN expansion due to " + "intervening vdev offline or remove.\n"); + } + spa_config_exit(spa, SCL_STATE, spa); + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); + return; + } + + /* + * Make sure we were able to grow the vdev. + */ + if (new_ms_count <= old_ms_count) + fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n", + old_ms_count, new_ms_count); /* * Make sure we were able to grow the pool. */ - if (ms_count >= tvd->vdev_ms_count || - spa_cursize >= spa_newsize) { - (void) printf("Top-level vdev metaslab count: " - "before %llu, after %llu\n", - (u_longlong_t)ms_count, - (u_longlong_t)tvd->vdev_ms_count); - fatal(0, "LUN expansion failed: before %llu, " - "after %llu\n", spa_cursize, spa_newsize); - } else if (zopt_verbose >= 5) { + if (new_class_space <= old_class_space) + fatal(0, "LUN expansion failed: class_space %llu <= %llu\n", + old_class_space, new_class_space); + + if (zopt_verbose >= 5) { char oldnumbuf[6], newnumbuf[6]; - nicenum(spa_cursize, oldnumbuf); - nicenum(spa_newsize, newnumbuf); + nicenum(old_class_space, oldnumbuf); + nicenum(new_class_space, newnumbuf); (void) printf("%s grew from %s to %s\n", spa->spa_name, oldnumbuf, newnumbuf); } + spa_config_exit(spa, SCL_STATE, spa); - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); } +/* + * Verify that dmu_objset_{create,destroy,open,close} work as expected. + */ /* ARGSUSED */ static void -ztest_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) +ztest_objset_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) { /* - * Create the directory object. + * Create the objects common to all ztest datasets. */ - VERIFY(dmu_object_claim(os, ZTEST_DIROBJ, - DMU_OT_UINT64_OTHER, ZTEST_DIROBJ_BLOCKSIZE, - DMU_OT_UINT64_OTHER, 5 * sizeof (ztest_block_tag_t), tx) == 0); - - VERIFY(zap_create_claim(os, ZTEST_MICROZAP_OBJ, + VERIFY(zap_create_claim(os, ZTEST_DIROBJ, DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0); +} - VERIFY(zap_create_claim(os, ZTEST_FATZAP_OBJ, - DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0); +static int +ztest_dataset_create(char *dsname) +{ + uint64_t zilset = ztest_random(100); + int err = dmu_objset_create(dsname, DMU_OST_OTHER, 0, + ztest_objset_create_cb, NULL); + + if (err || zilset < 80) + return (err); + + (void) printf("Setting dataset %s to sync always\n", dsname); + return (ztest_dsl_prop_set_uint64(dsname, ZFS_PROP_SYNC, + ZFS_SYNC_ALWAYS, B_FALSE)); } +/* ARGSUSED */ static int -ztest_destroy_cb(char *name, void *arg) +ztest_objset_destroy_cb(const char *name, void *arg) { - ztest_args_t *za = arg; objset_t *os; - dmu_object_info_t *doi = &za->za_doi; + dmu_object_info_t doi; int error; /* * Verify that the dataset contains a directory object. */ - error = dmu_objset_open(name, DMU_OST_OTHER, - DS_MODE_USER | DS_MODE_READONLY, &os); - ASSERT3U(error, ==, 0); - error = dmu_object_info(os, ZTEST_DIROBJ, doi); + VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os)); + error = dmu_object_info(os, ZTEST_DIROBJ, &doi); if (error != ENOENT) { /* We could have crashed in the middle of destroying it */ ASSERT3U(error, ==, 0); - ASSERT3U(doi->doi_type, ==, DMU_OT_UINT64_OTHER); - ASSERT3S(doi->doi_physical_blks, >=, 0); + ASSERT3U(doi.doi_type, ==, DMU_OT_ZAP_OTHER); + ASSERT3S(doi.doi_physical_blocks_512, >=, 0); } - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); /* * Destroy the dataset. */ - error = dmu_objset_destroy(name, B_FALSE); - if (error) { - (void) dmu_objset_open(name, DMU_OST_OTHER, - DS_MODE_USER | DS_MODE_READONLY, &os); - fatal(0, "dmu_objset_destroy(os=%p) = %d\n", &os, error); - } + VERIFY3U(0, ==, dmu_objset_destroy(name, B_FALSE)); return (0); } -/* - * Verify that dmu_objset_{create,destroy,open,close} work as expected. - */ -static uint64_t -ztest_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t object, int mode) +static boolean_t +ztest_snapshot_create(char *osname, uint64_t id) { - itx_t *itx; - lr_create_t *lr; - size_t namesize; - char name[24]; - - (void) sprintf(name, "ZOBJ_%llu", (u_longlong_t)object); - namesize = strlen(name) + 1; - - itx = zil_itx_create(TX_CREATE, sizeof (*lr) + namesize + - ztest_random(ZIL_MAX_BLKSZ)); - lr = (lr_create_t *)&itx->itx_lr; - bzero(lr + 1, lr->lr_common.lrc_reclen - sizeof (*lr)); - lr->lr_doid = object; - lr->lr_foid = 0; - lr->lr_mode = mode; - lr->lr_uid = 0; - lr->lr_gid = 0; - lr->lr_gen = dmu_tx_get_txg(tx); - lr->lr_crtime[0] = time(NULL); - lr->lr_crtime[1] = 0; - lr->lr_rdev = 0; - bcopy(name, (char *)(lr + 1), namesize); - - return (zil_itx_assign(zilog, itx, tx)); + char snapname[MAXNAMELEN]; + int error; + + (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname, + (u_longlong_t)id); + + error = dmu_objset_snapshot(osname, strchr(snapname, '@') + 1, + NULL, B_FALSE); + if (error == ENOSPC) { + ztest_record_enospc(FTAG); + return (B_FALSE); + } + if (error != 0 && error != EEXIST) + fatal(0, "ztest_snapshot_create(%s) = %d", snapname, error); + return (B_TRUE); } +static boolean_t +ztest_snapshot_destroy(char *osname, uint64_t id) +{ + char snapname[MAXNAMELEN]; + int error; + + (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname, + (u_longlong_t)id); + + error = dmu_objset_destroy(snapname, B_FALSE); + if (error != 0 && error != ENOENT) + fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname, error); + return (B_TRUE); +} + +/* ARGSUSED */ void -ztest_dmu_objset_create_destroy(ztest_args_t *za) +ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id) { + ztest_shared_t *zs = ztest_shared; + ztest_ds_t zdtmp; + int iters; int error; objset_t *os, *os2; - char name[100]; - int basemode, expected_error; + char name[MAXNAMELEN]; zilog_t *zilog; - uint64_t seq; - uint64_t objects; - (void) rw_rdlock(&ztest_shared->zs_name_lock); - (void) snprintf(name, 100, "%s/%s_temp_%llu", za->za_pool, za->za_pool, - (u_longlong_t)za->za_instance); + (void) rw_rdlock(&zs->zs_name_lock); - basemode = DS_MODE_TYPE(za->za_instance); - if (basemode != DS_MODE_USER && basemode != DS_MODE_OWNER) - basemode = DS_MODE_USER; + (void) snprintf(name, MAXNAMELEN, "%s/temp_%llu", + zs->zs_pool, (u_longlong_t)id); /* * If this dataset exists from a previous run, process its replay log * half of the time. If we don't replay it, then dmu_objset_destroy() - * (invoked from ztest_destroy_cb() below) should just throw it away. + * (invoked from ztest_objset_destroy_cb()) should just throw it away. */ if (ztest_random(2) == 0 && - dmu_objset_open(name, DMU_OST_OTHER, DS_MODE_OWNER, &os) == 0) { - zil_replay(os, os, ztest_replay_vector); - dmu_objset_close(os); + dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os) == 0) { + ztest_zd_init(&zdtmp, os); + zil_replay(os, &zdtmp, ztest_replay_vector); + ztest_zd_fini(&zdtmp); + dmu_objset_disown(os, FTAG); } /* @@ -1463,156 +2935,105 @@ ztest_dmu_objset_create_destroy(ztest_args_t *za) * create lying around from a previous run. If so, destroy it * and all of its snapshots. */ - (void) dmu_objset_find(name, ztest_destroy_cb, za, + (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL, DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS); /* * Verify that the destroyed dataset is no longer in the namespace. */ - error = dmu_objset_open(name, DMU_OST_OTHER, basemode, &os); - if (error != ENOENT) - fatal(1, "dmu_objset_open(%s) found destroyed dataset %p", - name, os); + VERIFY3U(ENOENT, ==, dmu_objset_hold(name, FTAG, &os)); /* * Verify that we can create a new dataset. */ - error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0, - ztest_create_cb, NULL); + error = ztest_dataset_create(name); if (error) { if (error == ENOSPC) { - ztest_record_enospc("dmu_objset_create"); - (void) rw_unlock(&ztest_shared->zs_name_lock); + ztest_record_enospc(FTAG); + (void) rw_unlock(&zs->zs_name_lock); return; } fatal(0, "dmu_objset_create(%s) = %d", name, error); } - error = dmu_objset_open(name, DMU_OST_OTHER, basemode, &os); - if (error) { - fatal(0, "dmu_objset_open(%s) = %d", name, error); - } + VERIFY3U(0, ==, + dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os)); + + ztest_zd_init(&zdtmp, os); /* * Open the intent log for it. */ - zilog = zil_open(os, NULL); + zilog = zil_open(os, ztest_get_data); /* - * Put a random number of objects in there. + * Put some objects in there, do a little I/O to them, + * and randomly take a couple of snapshots along the way. */ - objects = ztest_random(20); - seq = 0; - while (objects-- != 0) { - uint64_t object; - dmu_tx_t *tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, sizeof (name)); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - dmu_tx_abort(tx); - } else { - object = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - ztest_set_random_blocksize(os, object, tx); - seq = ztest_log_create(zilog, tx, object, - DMU_OT_UINT64_OTHER); - dmu_write(os, object, 0, sizeof (name), name, tx); - dmu_tx_commit(tx); - } - if (ztest_random(5) == 0) { - zil_commit(zilog, seq, object); - } - if (ztest_random(100) == 0) { - error = zil_suspend(zilog); - if (error == 0) { - zil_resume(zilog); - } - } + iters = ztest_random(5); + for (int i = 0; i < iters; i++) { + ztest_dmu_object_alloc_free(&zdtmp, id); + if (ztest_random(iters) == 0) + (void) ztest_snapshot_create(name, i); } /* * Verify that we cannot create an existing dataset. */ - error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0, NULL, NULL); - if (error != EEXIST) - fatal(0, "created existing dataset, error = %d", error); + VERIFY3U(EEXIST, ==, + dmu_objset_create(name, DMU_OST_OTHER, 0, NULL, NULL)); /* - * Verify that multiple dataset holds are allowed, but only when - * the new access mode is compatible with the base mode. + * Verify that we can hold an objset that is also owned. */ - if (basemode == DS_MODE_OWNER) { - error = dmu_objset_open(name, DMU_OST_OTHER, DS_MODE_USER, - &os2); - if (error) - fatal(0, "dmu_objset_open('%s') = %d", name, error); - else - dmu_objset_close(os2); - } - error = dmu_objset_open(name, DMU_OST_OTHER, DS_MODE_OWNER, &os2); - expected_error = (basemode == DS_MODE_OWNER) ? EBUSY : 0; - if (error != expected_error) - fatal(0, "dmu_objset_open('%s') = %d, expected %d", - name, error, expected_error); - if (error == 0) - dmu_objset_close(os2); + VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os2)); + dmu_objset_rele(os2, FTAG); - zil_close(zilog); - dmu_objset_close(os); + /* + * Verify that we cannot own an objset that is already owned. + */ + VERIFY3U(EBUSY, ==, + dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os2)); - error = dmu_objset_destroy(name, B_FALSE); - if (error) - fatal(0, "dmu_objset_destroy(%s) = %d", name, error); + zil_close(zilog); + dmu_objset_disown(os, FTAG); + ztest_zd_fini(&zdtmp); - (void) rw_unlock(&ztest_shared->zs_name_lock); + (void) rw_unlock(&zs->zs_name_lock); } /* * Verify that dmu_snapshot_{create,destroy,open,close} work as expected. */ void -ztest_dmu_snapshot_create_destroy(ztest_args_t *za) +ztest_dmu_snapshot_create_destroy(ztest_ds_t *zd, uint64_t id) { - int error; - objset_t *os = za->za_os; - char snapname[100]; - char osname[MAXNAMELEN]; - - (void) rw_rdlock(&ztest_shared->zs_name_lock); - dmu_objset_name(os, osname); - (void) snprintf(snapname, 100, "%s@%llu", osname, - (u_longlong_t)za->za_instance); + ztest_shared_t *zs = ztest_shared; - error = dmu_objset_destroy(snapname, B_FALSE); - if (error != 0 && error != ENOENT) - fatal(0, "dmu_objset_destroy() = %d", error); - error = dmu_objset_snapshot(osname, strchr(snapname, '@')+1, - NULL, FALSE); - if (error == ENOSPC) - ztest_record_enospc("dmu_take_snapshot"); - else if (error != 0 && error != EEXIST) - fatal(0, "dmu_take_snapshot() = %d", error); - (void) rw_unlock(&ztest_shared->zs_name_lock); + (void) rw_rdlock(&zs->zs_name_lock); + (void) ztest_snapshot_destroy(zd->zd_name, id); + (void) ztest_snapshot_create(zd->zd_name, id); + (void) rw_unlock(&zs->zs_name_lock); } /* * Cleanup non-standard snapshots and clones. */ void -ztest_dsl_dataset_cleanup(char *osname, uint64_t curval) +ztest_dsl_dataset_cleanup(char *osname, uint64_t id) { - char snap1name[100]; - char clone1name[100]; - char snap2name[100]; - char clone2name[100]; - char snap3name[100]; + char snap1name[MAXNAMELEN]; + char clone1name[MAXNAMELEN]; + char snap2name[MAXNAMELEN]; + char clone2name[MAXNAMELEN]; + char snap3name[MAXNAMELEN]; int error; - (void) snprintf(snap1name, 100, "%s@s1_%llu", osname, curval); - (void) snprintf(clone1name, 100, "%s/c1_%llu", osname, curval); - (void) snprintf(snap2name, 100, "%s@s2_%llu", clone1name, curval); - (void) snprintf(clone2name, 100, "%s/c2_%llu", osname, curval); - (void) snprintf(snap3name, 100, "%s@s3_%llu", clone1name, curval); + (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id); + (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id); + (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id); + (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id); + (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id); error = dmu_objset_destroy(clone2name, B_FALSE); if (error && error != ENOENT) @@ -1635,343 +3056,140 @@ ztest_dsl_dataset_cleanup(char *osname, uint64_t curval) * Verify dsl_dataset_promote handles EBUSY */ void -ztest_dsl_dataset_promote_busy(ztest_args_t *za) +ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id) { - int error; - objset_t *os = za->za_os; + ztest_shared_t *zs = ztest_shared; objset_t *clone; dsl_dataset_t *ds; - char snap1name[100]; - char clone1name[100]; - char snap2name[100]; - char clone2name[100]; - char snap3name[100]; - char osname[MAXNAMELEN]; - uint64_t curval = za->za_instance; + char snap1name[MAXNAMELEN]; + char clone1name[MAXNAMELEN]; + char snap2name[MAXNAMELEN]; + char clone2name[MAXNAMELEN]; + char snap3name[MAXNAMELEN]; + char *osname = zd->zd_name; + int error; - (void) rw_rdlock(&ztest_shared->zs_name_lock); + (void) rw_rdlock(&zs->zs_name_lock); - dmu_objset_name(os, osname); - ztest_dsl_dataset_cleanup(osname, curval); + ztest_dsl_dataset_cleanup(osname, id); - (void) snprintf(snap1name, 100, "%s@s1_%llu", osname, curval); - (void) snprintf(clone1name, 100, "%s/c1_%llu", osname, curval); - (void) snprintf(snap2name, 100, "%s@s2_%llu", clone1name, curval); - (void) snprintf(clone2name, 100, "%s/c2_%llu", osname, curval); - (void) snprintf(snap3name, 100, "%s@s3_%llu", clone1name, curval); + (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id); + (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id); + (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id); + (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id); + (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id); error = dmu_objset_snapshot(osname, strchr(snap1name, '@')+1, - NULL, FALSE); + NULL, B_FALSE); if (error && error != EEXIST) { if (error == ENOSPC) { - ztest_record_enospc("dmu_take_snapshot"); + ztest_record_enospc(FTAG); goto out; } fatal(0, "dmu_take_snapshot(%s) = %d", snap1name, error); } - error = dmu_objset_open(snap1name, DMU_OST_OTHER, - DS_MODE_USER | DS_MODE_READONLY, &clone); + error = dmu_objset_hold(snap1name, FTAG, &clone); if (error) fatal(0, "dmu_open_snapshot(%s) = %d", snap1name, error); - error = dmu_objset_create(clone1name, DMU_OST_OTHER, clone, 0, - NULL, NULL); - dmu_objset_close(clone); + error = dmu_objset_clone(clone1name, dmu_objset_ds(clone), 0); + dmu_objset_rele(clone, FTAG); if (error) { if (error == ENOSPC) { - ztest_record_enospc("dmu_objset_create"); + ztest_record_enospc(FTAG); goto out; } fatal(0, "dmu_objset_create(%s) = %d", clone1name, error); } error = dmu_objset_snapshot(clone1name, strchr(snap2name, '@')+1, - NULL, FALSE); + NULL, B_FALSE); if (error && error != EEXIST) { if (error == ENOSPC) { - ztest_record_enospc("dmu_take_snapshot"); + ztest_record_enospc(FTAG); goto out; } fatal(0, "dmu_open_snapshot(%s) = %d", snap2name, error); } error = dmu_objset_snapshot(clone1name, strchr(snap3name, '@')+1, - NULL, FALSE); + NULL, B_FALSE); if (error && error != EEXIST) { if (error == ENOSPC) { - ztest_record_enospc("dmu_take_snapshot"); + ztest_record_enospc(FTAG); goto out; } fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error); } - error = dmu_objset_open(snap3name, DMU_OST_OTHER, - DS_MODE_USER | DS_MODE_READONLY, &clone); + error = dmu_objset_hold(snap3name, FTAG, &clone); if (error) fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error); - error = dmu_objset_create(clone2name, DMU_OST_OTHER, clone, 0, - NULL, NULL); - dmu_objset_close(clone); + error = dmu_objset_clone(clone2name, dmu_objset_ds(clone), 0); + dmu_objset_rele(clone, FTAG); if (error) { if (error == ENOSPC) { - ztest_record_enospc("dmu_objset_create"); + ztest_record_enospc(FTAG); goto out; } fatal(0, "dmu_objset_create(%s) = %d", clone2name, error); } - error = dsl_dataset_own(snap1name, DS_MODE_READONLY, FTAG, &ds); + error = dsl_dataset_own(snap2name, B_FALSE, FTAG, &ds); if (error) - fatal(0, "dsl_dataset_own(%s) = %d", snap1name, error); - error = dsl_dataset_promote(clone2name); + fatal(0, "dsl_dataset_own(%s) = %d", snap2name, error); + error = dsl_dataset_promote(clone2name, NULL); if (error != EBUSY) fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name, error); dsl_dataset_disown(ds, FTAG); out: - ztest_dsl_dataset_cleanup(osname, curval); + ztest_dsl_dataset_cleanup(osname, id); - (void) rw_unlock(&ztest_shared->zs_name_lock); + (void) rw_unlock(&zs->zs_name_lock); } /* * Verify that dmu_object_{alloc,free} work as expected. */ void -ztest_dmu_object_alloc_free(ztest_args_t *za) +ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id) { - objset_t *os = za->za_os; - dmu_buf_t *db; - dmu_tx_t *tx; - uint64_t batchobj, object, batchsize, endoff, temp; - int b, c, error, bonuslen; - dmu_object_info_t *doi = &za->za_doi; - char osname[MAXNAMELEN]; - - dmu_objset_name(os, osname); + ztest_od_t od[4]; + int batchsize = sizeof (od) / sizeof (od[0]); - endoff = -8ULL; - batchsize = 2; - - /* - * Create a batch object if necessary, and record it in the directory. - */ - VERIFY3U(0, ==, dmu_read(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &batchobj, DMU_READ_PREFETCH)); - if (batchobj == 0) { - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t)); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create a batch object"); - dmu_tx_abort(tx); - return; - } - batchobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - ztest_set_random_blocksize(os, batchobj, tx); - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &batchobj, tx); - dmu_tx_commit(tx); - } + for (int b = 0; b < batchsize; b++) + ztest_od_init(&od[b], id, FTAG, b, DMU_OT_UINT64_OTHER, 0, 0); /* - * Destroy the previous batch of objects. + * Destroy the previous batch of objects, create a new batch, + * and do some I/O on the new objects. */ - for (b = 0; b < batchsize; b++) { - VERIFY3U(0, ==, dmu_read(os, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t), &object, DMU_READ_PREFETCH)); - if (object == 0) - continue; - /* - * Read and validate contents. - * We expect the nth byte of the bonus buffer to be n. - */ - VERIFY(0 == dmu_bonus_hold(os, object, FTAG, &db)); - za->za_dbuf = db; - - dmu_object_info_from_db(db, doi); - ASSERT(doi->doi_type == DMU_OT_UINT64_OTHER); - ASSERT(doi->doi_bonus_type == DMU_OT_PLAIN_OTHER); - ASSERT3S(doi->doi_physical_blks, >=, 0); - - bonuslen = doi->doi_bonus_size; - - for (c = 0; c < bonuslen; c++) { - if (((uint8_t *)db->db_data)[c] != - (uint8_t)(c + bonuslen)) { - fatal(0, - "bad bonus: %s, obj %llu, off %d: %u != %u", - osname, object, c, - ((uint8_t *)db->db_data)[c], - (uint8_t)(c + bonuslen)); - } - } - - dmu_buf_rele(db, FTAG); - za->za_dbuf = NULL; - - /* - * We expect the word at endoff to be our object number. - */ - VERIFY(0 == dmu_read(os, object, endoff, - sizeof (uint64_t), &temp, DMU_READ_PREFETCH)); - - if (temp != object) { - fatal(0, "bad data in %s, got %llu, expected %llu", - osname, temp, object); - } - - /* - * Destroy old object and clear batch entry. - */ - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, batchobj, - b * sizeof (uint64_t), sizeof (uint64_t)); - dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("free object"); - dmu_tx_abort(tx); - return; - } - error = dmu_object_free(os, object, tx); - if (error) { - fatal(0, "dmu_object_free('%s', %llu) = %d", - osname, object, error); - } - object = 0; - - dmu_object_set_checksum(os, batchobj, - ztest_random_checksum(), tx); - dmu_object_set_compress(os, batchobj, - ztest_random_compress(), tx); - - dmu_write(os, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t), &object, tx); - - dmu_tx_commit(tx); - } - - /* - * Before creating the new batch of objects, generate a bunch of churn. - */ - for (b = ztest_random(100); b > 0; b--) { - tx = dmu_tx_create(os); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("churn objects"); - dmu_tx_abort(tx); - return; - } - object = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - ztest_set_random_blocksize(os, object, tx); - error = dmu_object_free(os, object, tx); - if (error) { - fatal(0, "dmu_object_free('%s', %llu) = %d", - osname, object, error); - } - dmu_tx_commit(tx); - } - - /* - * Create a new batch of objects with randomly chosen - * blocksizes and record them in the batch directory. - */ - for (b = 0; b < batchsize; b++) { - uint32_t va_blksize; - u_longlong_t va_nblocks; - - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t)); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, endoff, - sizeof (uint64_t)); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create batchobj"); - dmu_tx_abort(tx); - return; - } - bonuslen = (int)ztest_random(dmu_bonus_max()) + 1; - - object = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_PLAIN_OTHER, bonuslen, tx); - - ztest_set_random_blocksize(os, object, tx); - - dmu_object_set_checksum(os, object, - ztest_random_checksum(), tx); - dmu_object_set_compress(os, object, - ztest_random_compress(), tx); - - dmu_write(os, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t), &object, tx); - - /* - * Write to both the bonus buffer and the regular data. - */ - VERIFY(dmu_bonus_hold(os, object, FTAG, &db) == 0); - za->za_dbuf = db; - ASSERT3U(bonuslen, <=, db->db_size); - - dmu_object_size_from_db(db, &va_blksize, &va_nblocks); - ASSERT3S(va_nblocks, >=, 0); - - dmu_buf_will_dirty(db, tx); - - /* - * See comments above regarding the contents of - * the bonus buffer and the word at endoff. - */ - for (c = 0; c < bonuslen; c++) - ((uint8_t *)db->db_data)[c] = (uint8_t)(c + bonuslen); - - dmu_buf_rele(db, FTAG); - za->za_dbuf = NULL; - - /* - * Write to a large offset to increase indirection. - */ - dmu_write(os, object, endoff, sizeof (uint64_t), &object, tx); + if (ztest_object_init(zd, od, sizeof (od), B_TRUE) != 0) + return; - dmu_tx_commit(tx); - } + while (ztest_random(4 * batchsize) != 0) + ztest_io(zd, od[ztest_random(batchsize)].od_object, + ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT); } /* * Verify that dmu_{read,write} work as expected. */ -typedef struct bufwad { - uint64_t bw_index; - uint64_t bw_txg; - uint64_t bw_data; -} bufwad_t; - -typedef struct dmu_read_write_dir { - uint64_t dd_packobj; - uint64_t dd_bigobj; - uint64_t dd_chunk; -} dmu_read_write_dir_t; - void -ztest_dmu_read_write(ztest_args_t *za) +ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id) { - objset_t *os = za->za_os; - dmu_read_write_dir_t dd; + objset_t *os = zd->zd_os; + ztest_od_t od[2]; dmu_tx_t *tx; int i, freeit, error; uint64_t n, s, txg; bufwad_t *packbuf, *bigbuf, *pack, *bigH, *bigT; - uint64_t packoff, packsize, bigoff, bigsize; + uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize; + uint64_t chunksize = (1000 + ztest_random(1000)) * sizeof (uint64_t); uint64_t regions = 997; uint64_t stride = 123456789ULL; uint64_t width = 40; @@ -2004,34 +3222,16 @@ ztest_dmu_read_write(ztest_args_t *za) /* * Read the directory info. If it's the first time, set things up. */ - VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (dd), &dd, DMU_READ_PREFETCH)); - if (dd.dd_chunk == 0) { - ASSERT(dd.dd_packobj == 0); - ASSERT(dd.dd_bigobj == 0); - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, sizeof (dd)); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create r/w directory"); - dmu_tx_abort(tx); - return; - } - - dd.dd_packobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - dd.dd_bigobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - dd.dd_chunk = (1000 + ztest_random(1000)) * sizeof (uint64_t); + ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, chunksize); + ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize); - ztest_set_random_blocksize(os, dd.dd_packobj, tx); - ztest_set_random_blocksize(os, dd.dd_bigobj, tx); + if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0) + return; - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, sizeof (dd), &dd, - tx); - dmu_tx_commit(tx); - } + bigobj = od[0].od_object; + packobj = od[1].od_object; + chunksize = od[0].od_gen; + ASSERT(chunksize == od[1].od_gen); /* * Prefetch a random chunk of the big object. @@ -2041,7 +3241,7 @@ ztest_dmu_read_write(ztest_args_t *za) */ n = ztest_random(regions) * stride + ztest_random(width); s = 1 + ztest_random(2 * width - 1); - dmu_prefetch(os, dd.dd_bigobj, n * dd.dd_chunk, s * dd.dd_chunk); + dmu_prefetch(os, bigobj, n * chunksize, s * chunksize); /* * Pick a random index and compute the offsets into packobj and bigobj. @@ -2052,8 +3252,8 @@ ztest_dmu_read_write(ztest_args_t *za) packoff = n * sizeof (bufwad_t); packsize = s * sizeof (bufwad_t); - bigoff = n * dd.dd_chunk; - bigsize = s * dd.dd_chunk; + bigoff = n * chunksize; + bigsize = s * chunksize; packbuf = umem_alloc(packsize, UMEM_NOFAIL); bigbuf = umem_alloc(bigsize, UMEM_NOFAIL); @@ -2067,10 +3267,10 @@ ztest_dmu_read_write(ztest_args_t *za) /* * Read the current contents of our objects. */ - error = dmu_read(os, dd.dd_packobj, packoff, packsize, packbuf, + error = dmu_read(os, packobj, packoff, packsize, packbuf, DMU_READ_PREFETCH); ASSERT3U(error, ==, 0); - error = dmu_read(os, dd.dd_bigobj, bigoff, bigsize, bigbuf, + error = dmu_read(os, bigobj, bigoff, bigsize, bigbuf, DMU_READ_PREFETCH); ASSERT3U(error, ==, 0); @@ -2079,24 +3279,25 @@ ztest_dmu_read_write(ztest_args_t *za) */ tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, dd.dd_packobj, packoff, packsize); + dmu_tx_hold_write(tx, packobj, packoff, packsize); if (freeit) - dmu_tx_hold_free(tx, dd.dd_bigobj, bigoff, bigsize); + dmu_tx_hold_free(tx, bigobj, bigoff, bigsize); else - dmu_tx_hold_write(tx, dd.dd_bigobj, bigoff, bigsize); + dmu_tx_hold_write(tx, bigobj, bigoff, bigsize); - error = dmu_tx_assign(tx, TXG_WAIT); - - if (error) { - ztest_record_enospc("dmu r/w range"); - dmu_tx_abort(tx); + txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG); + if (txg == 0) { umem_free(packbuf, packsize); umem_free(bigbuf, bigsize); return; } - txg = dmu_tx_get_txg(tx); + dmu_object_set_checksum(os, bigobj, + (enum zio_checksum)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM), tx); + + dmu_object_set_compress(os, bigobj, + (enum zio_compress)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION), tx); /* * For each index from n to n + s, verify that the existing bufwad @@ -2108,9 +3309,9 @@ ztest_dmu_read_write(ztest_args_t *za) /* LINTED */ pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t)); /* LINTED */ - bigH = (bufwad_t *)((char *)bigbuf + i * dd.dd_chunk); + bigH = (bufwad_t *)((char *)bigbuf + i * chunksize); /* LINTED */ - bigT = (bufwad_t *)((char *)bigH + dd.dd_chunk) - 1; + bigT = (bufwad_t *)((char *)bigH + chunksize) - 1; ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize); ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize); @@ -2144,27 +3345,26 @@ ztest_dmu_read_write(ztest_args_t *za) * We've verified all the old bufwads, and made new ones. * Now write them out. */ - dmu_write(os, dd.dd_packobj, packoff, packsize, packbuf, tx); + dmu_write(os, packobj, packoff, packsize, packbuf, tx); if (freeit) { - if (zopt_verbose >= 6) { + if (zopt_verbose >= 7) { (void) printf("freeing offset %llx size %llx" " txg %llx\n", (u_longlong_t)bigoff, (u_longlong_t)bigsize, (u_longlong_t)txg); } - VERIFY(0 == dmu_free_range(os, dd.dd_bigobj, bigoff, - bigsize, tx)); + VERIFY(0 == dmu_free_range(os, bigobj, bigoff, bigsize, tx)); } else { - if (zopt_verbose >= 6) { + if (zopt_verbose >= 7) { (void) printf("writing offset %llx size %llx" " txg %llx\n", (u_longlong_t)bigoff, (u_longlong_t)bigsize, (u_longlong_t)txg); } - dmu_write(os, dd.dd_bigobj, bigoff, bigsize, bigbuf, tx); + dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx); } dmu_tx_commit(tx); @@ -2176,9 +3376,9 @@ ztest_dmu_read_write(ztest_args_t *za) void *packcheck = umem_alloc(packsize, UMEM_NOFAIL); void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL); - VERIFY(0 == dmu_read(os, dd.dd_packobj, packoff, + VERIFY(0 == dmu_read(os, packobj, packoff, packsize, packcheck, DMU_READ_PREFETCH)); - VERIFY(0 == dmu_read(os, dd.dd_bigobj, bigoff, + VERIFY(0 == dmu_read(os, bigobj, bigoff, bigsize, bigcheck, DMU_READ_PREFETCH)); ASSERT(bcmp(packbuf, packcheck, packsize) == 0); @@ -2194,7 +3394,7 @@ ztest_dmu_read_write(ztest_args_t *za) void compare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf, - uint64_t bigsize, uint64_t n, dmu_read_write_dir_t dd, uint64_t txg) + uint64_t bigsize, uint64_t n, uint64_t chunksize, uint64_t txg) { uint64_t i; bufwad_t *pack; @@ -2211,9 +3411,9 @@ compare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf, /* LINTED */ pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t)); /* LINTED */ - bigH = (bufwad_t *)((char *)bigbuf + i * dd.dd_chunk); + bigH = (bufwad_t *)((char *)bigbuf + i * chunksize); /* LINTED */ - bigT = (bufwad_t *)((char *)bigH + dd.dd_chunk) - 1; + bigT = (bufwad_t *)((char *)bigH + chunksize) - 1; ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize); ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize); @@ -2242,22 +3442,24 @@ compare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf, } void -ztest_dmu_read_write_zcopy(ztest_args_t *za) +ztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id) { - objset_t *os = za->za_os; - dmu_read_write_dir_t dd; + objset_t *os = zd->zd_os; + ztest_od_t od[2]; dmu_tx_t *tx; uint64_t i; int error; uint64_t n, s, txg; bufwad_t *packbuf, *bigbuf; - uint64_t packoff, packsize, bigoff, bigsize; + uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize; + uint64_t blocksize = ztest_random_blocksize(); + uint64_t chunksize = blocksize; uint64_t regions = 997; uint64_t stride = 123456789ULL; uint64_t width = 9; dmu_buf_t *bonus_db; arc_buf_t **bigbuf_arcbufs; - dmu_object_info_t *doi = &za->za_doi; + dmu_object_info_t doi; /* * This test uses two objects, packobj and bigobj, that are always @@ -2278,42 +3480,22 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) /* * Read the directory info. If it's the first time, set things up. */ - VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (dd), &dd, DMU_READ_PREFETCH)); - if (dd.dd_chunk == 0) { - ASSERT(dd.dd_packobj == 0); - ASSERT(dd.dd_bigobj == 0); - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, sizeof (dd)); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create r/w directory"); - dmu_tx_abort(tx); - return; - } + ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0); + ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize); - dd.dd_packobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - dd.dd_bigobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - ztest_set_random_blocksize(os, dd.dd_packobj, tx); - ztest_set_random_blocksize(os, dd.dd_bigobj, tx); + if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0) + return; - VERIFY(dmu_object_info(os, dd.dd_bigobj, doi) == 0); - ASSERT(doi->doi_data_block_size >= 2 * sizeof (bufwad_t)); - ASSERT(ISP2(doi->doi_data_block_size)); - dd.dd_chunk = doi->doi_data_block_size; + bigobj = od[0].od_object; + packobj = od[1].od_object; + blocksize = od[0].od_blocksize; + chunksize = blocksize; + ASSERT(chunksize == od[1].od_gen); - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, sizeof (dd), &dd, - tx); - dmu_tx_commit(tx); - } else { - VERIFY(dmu_object_info(os, dd.dd_bigobj, doi) == 0); - VERIFY(ISP2(doi->doi_data_block_size)); - VERIFY(dd.dd_chunk == doi->doi_data_block_size); - VERIFY(dd.dd_chunk >= 2 * sizeof (bufwad_t)); - } + VERIFY(dmu_object_info(os, bigobj, &doi) == 0); + VERIFY(ISP2(doi.doi_data_block_size)); + VERIFY(chunksize == doi.doi_data_block_size); + VERIFY(chunksize >= 2 * sizeof (bufwad_t)); /* * Pick a random index and compute the offsets into packobj and bigobj. @@ -2324,13 +3506,13 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) packoff = n * sizeof (bufwad_t); packsize = s * sizeof (bufwad_t); - bigoff = n * dd.dd_chunk; - bigsize = s * dd.dd_chunk; + bigoff = n * chunksize; + bigsize = s * chunksize; packbuf = umem_zalloc(packsize, UMEM_NOFAIL); bigbuf = umem_zalloc(bigsize, UMEM_NOFAIL); - VERIFY(dmu_bonus_hold(os, dd.dd_bigobj, FTAG, &bonus_db) == 0); + VERIFY3U(0, ==, dmu_bonus_hold(os, bigobj, FTAG, &bonus_db)); bigbuf_arcbufs = umem_zalloc(2 * s * sizeof (arc_buf_t *), UMEM_NOFAIL); @@ -2356,15 +3538,12 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) for (j = 0; j < s; j++) { if (i != 5) { bigbuf_arcbufs[j] = - dmu_request_arcbuf(bonus_db, - dd.dd_chunk); + dmu_request_arcbuf(bonus_db, chunksize); } else { bigbuf_arcbufs[2 * j] = - dmu_request_arcbuf(bonus_db, - dd.dd_chunk / 2); + dmu_request_arcbuf(bonus_db, chunksize / 2); bigbuf_arcbufs[2 * j + 1] = - dmu_request_arcbuf(bonus_db, - dd.dd_chunk / 2); + dmu_request_arcbuf(bonus_db, chunksize / 2); } } @@ -2373,20 +3552,11 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) */ tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, dd.dd_packobj, packoff, packsize); - dmu_tx_hold_write(tx, dd.dd_bigobj, bigoff, bigsize); - - if (ztest_random(100) == 0) { - error = -1; - } else { - error = dmu_tx_assign(tx, TXG_WAIT); - } + dmu_tx_hold_write(tx, packobj, packoff, packsize); + dmu_tx_hold_write(tx, bigobj, bigoff, bigsize); - if (error) { - if (error != -1) { - ztest_record_enospc("dmu r/w range"); - } - dmu_tx_abort(tx); + txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG); + if (txg == 0) { umem_free(packbuf, packsize); umem_free(bigbuf, bigsize); for (j = 0; j < s; j++) { @@ -2404,54 +3574,52 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) return; } - txg = dmu_tx_get_txg(tx); - /* * 50% of the time don't read objects in the 1st iteration to * test dmu_assign_arcbuf() for the case when there're no * existing dbufs for the specified offsets. */ if (i != 0 || ztest_random(2) != 0) { - error = dmu_read(os, dd.dd_packobj, packoff, + error = dmu_read(os, packobj, packoff, packsize, packbuf, DMU_READ_PREFETCH); ASSERT3U(error, ==, 0); - error = dmu_read(os, dd.dd_bigobj, bigoff, bigsize, + error = dmu_read(os, bigobj, bigoff, bigsize, bigbuf, DMU_READ_PREFETCH); ASSERT3U(error, ==, 0); } compare_and_update_pbbufs(s, packbuf, bigbuf, bigsize, - n, dd, txg); + n, chunksize, txg); /* * We've verified all the old bufwads, and made new ones. * Now write them out. */ - dmu_write(os, dd.dd_packobj, packoff, packsize, packbuf, tx); - if (zopt_verbose >= 6) { + dmu_write(os, packobj, packoff, packsize, packbuf, tx); + if (zopt_verbose >= 7) { (void) printf("writing offset %llx size %llx" " txg %llx\n", (u_longlong_t)bigoff, (u_longlong_t)bigsize, (u_longlong_t)txg); } - for (off = bigoff, j = 0; j < s; j++, off += dd.dd_chunk) { + for (off = bigoff, j = 0; j < s; j++, off += chunksize) { dmu_buf_t *dbt; if (i != 5) { bcopy((caddr_t)bigbuf + (off - bigoff), - bigbuf_arcbufs[j]->b_data, dd.dd_chunk); + bigbuf_arcbufs[j]->b_data, chunksize); } else { bcopy((caddr_t)bigbuf + (off - bigoff), bigbuf_arcbufs[2 * j]->b_data, - dd.dd_chunk / 2); + chunksize / 2); bcopy((caddr_t)bigbuf + (off - bigoff) + - dd.dd_chunk / 2, + chunksize / 2, bigbuf_arcbufs[2 * j + 1]->b_data, - dd.dd_chunk / 2); + chunksize / 2); } if (i == 1) { - VERIFY(dmu_buf_hold(os, dd.dd_bigobj, off, - FTAG, &dbt) == 0); + VERIFY(dmu_buf_hold(os, bigobj, off, + FTAG, &dbt, DMU_READ_NO_PREFETCH) == 0); } if (i != 5) { dmu_assign_arcbuf(bonus_db, off, @@ -2460,7 +3628,7 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) dmu_assign_arcbuf(bonus_db, off, bigbuf_arcbufs[2 * j], tx); dmu_assign_arcbuf(bonus_db, - off + dd.dd_chunk / 2, + off + chunksize / 2, bigbuf_arcbufs[2 * j + 1], tx); } if (i == 1) { @@ -2476,9 +3644,9 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) void *packcheck = umem_alloc(packsize, UMEM_NOFAIL); void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL); - VERIFY(0 == dmu_read(os, dd.dd_packobj, packoff, + VERIFY(0 == dmu_read(os, packobj, packoff, packsize, packcheck, DMU_READ_PREFETCH)); - VERIFY(0 == dmu_read(os, dd.dd_bigobj, bigoff, + VERIFY(0 == dmu_read(os, bigobj, bigoff, bigsize, bigcheck, DMU_READ_PREFETCH)); ASSERT(bcmp(packbuf, packcheck, packsize) == 0); @@ -2500,256 +3668,60 @@ ztest_dmu_read_write_zcopy(ztest_args_t *za) umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *)); } +/* ARGSUSED */ void -ztest_dmu_check_future_leak(ztest_args_t *za) -{ - objset_t *os = za->za_os; - dmu_buf_t *db; - ztest_block_tag_t *bt; - dmu_object_info_t *doi = &za->za_doi; - - /* - * Make sure that, if there is a write record in the bonus buffer - * of the ZTEST_DIROBJ, that the txg for this record is <= the - * last synced txg of the pool. - */ - VERIFY(dmu_bonus_hold(os, ZTEST_DIROBJ, FTAG, &db) == 0); - za->za_dbuf = db; - VERIFY(dmu_object_info(os, ZTEST_DIROBJ, doi) == 0); - ASSERT3U(doi->doi_bonus_size, >=, sizeof (*bt)); - ASSERT3U(doi->doi_bonus_size, <=, db->db_size); - ASSERT3U(doi->doi_bonus_size % sizeof (*bt), ==, 0); - bt = (void *)((char *)db->db_data + doi->doi_bonus_size - sizeof (*bt)); - if (bt->bt_objset != 0) { - ASSERT3U(bt->bt_objset, ==, dmu_objset_id(os)); - ASSERT3U(bt->bt_object, ==, ZTEST_DIROBJ); - ASSERT3U(bt->bt_offset, ==, -1ULL); - ASSERT3U(bt->bt_txg, <, spa_first_txg(za->za_spa)); - } - dmu_buf_rele(db, FTAG); - za->za_dbuf = NULL; -} - -void -ztest_dmu_write_parallel(ztest_args_t *za) +ztest_dmu_write_parallel(ztest_ds_t *zd, uint64_t id) { - objset_t *os = za->za_os; - ztest_block_tag_t *rbt = &za->za_rbt; - ztest_block_tag_t *wbt = &za->za_wbt; - const size_t btsize = sizeof (ztest_block_tag_t); - dmu_buf_t *db; - int b, error; - int bs = ZTEST_DIROBJ_BLOCKSIZE; - int do_free = 0; - uint64_t off, txg, txg_how; - mutex_t *lp; - char osname[MAXNAMELEN]; - char iobuf[SPA_MAXBLOCKSIZE]; - blkptr_t blk = { 0 }; - uint64_t blkoff; - zbookmark_t zb; - dmu_tx_t *tx = dmu_tx_create(os); - dmu_buf_t *bonus_db; - arc_buf_t *abuf = NULL; - - dmu_objset_name(os, osname); + ztest_od_t od[1]; + uint64_t offset = (1ULL << (ztest_random(20) + 43)) + + (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT); /* - * Have multiple threads write to large offsets in ZTEST_DIROBJ - * to verify that having multiple threads writing to the same object - * in parallel doesn't cause any trouble. + * Have multiple threads write to large offsets in an object + * to verify that parallel writes to an object -- even to the + * same blocks within the object -- doesn't cause any trouble. */ - if (ztest_random(4) == 0) { - /* - * Do the bonus buffer instead of a regular block. - * We need a lock to serialize resize vs. others, - * so we hash on the objset ID. - */ - b = dmu_objset_id(os) % ZTEST_SYNC_LOCKS; - off = -1ULL; - dmu_tx_hold_bonus(tx, ZTEST_DIROBJ); - } else { - b = ztest_random(ZTEST_SYNC_LOCKS); - off = za->za_diroff_shared + (b << SPA_MAXBLOCKSHIFT); - if (ztest_random(4) == 0) { - do_free = 1; - dmu_tx_hold_free(tx, ZTEST_DIROBJ, off, bs); - } else { - dmu_tx_hold_write(tx, ZTEST_DIROBJ, off, bs); - } - } - - if (off != -1ULL && P2PHASE(off, bs) == 0 && !do_free && - ztest_random(8) == 0) { - VERIFY(dmu_bonus_hold(os, ZTEST_DIROBJ, FTAG, &bonus_db) == 0); - abuf = dmu_request_arcbuf(bonus_db, bs); - } + ztest_od_init(&od[0], ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0); - txg_how = ztest_random(2) == 0 ? TXG_WAIT : TXG_NOWAIT; - error = dmu_tx_assign(tx, txg_how); - if (error) { - if (error == ERESTART) { - ASSERT(txg_how == TXG_NOWAIT); - dmu_tx_wait(tx); - } else { - ztest_record_enospc("dmu write parallel"); - } - dmu_tx_abort(tx); - if (abuf != NULL) { - dmu_return_arcbuf(abuf); - dmu_buf_rele(bonus_db, FTAG); - } + if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0) return; - } - txg = dmu_tx_get_txg(tx); - lp = &ztest_shared->zs_sync_lock[b]; - (void) mutex_lock(lp); - - wbt->bt_objset = dmu_objset_id(os); - wbt->bt_object = ZTEST_DIROBJ; - wbt->bt_offset = off; - wbt->bt_txg = txg; - wbt->bt_thread = za->za_instance; - wbt->bt_seq = ztest_shared->zs_seq[b]++; /* protected by lp */ - - /* - * Occasionally, write an all-zero block to test the behavior - * of blocks that compress into holes. - */ - if (off != -1ULL && ztest_random(8) == 0) - bzero(wbt, btsize); - - if (off == -1ULL) { - dmu_object_info_t *doi = &za->za_doi; - char *dboff; - - VERIFY(dmu_bonus_hold(os, ZTEST_DIROBJ, FTAG, &db) == 0); - za->za_dbuf = db; - dmu_object_info_from_db(db, doi); - ASSERT3U(doi->doi_bonus_size, <=, db->db_size); - ASSERT3U(doi->doi_bonus_size, >=, btsize); - ASSERT3U(doi->doi_bonus_size % btsize, ==, 0); - dboff = (char *)db->db_data + doi->doi_bonus_size - btsize; - bcopy(dboff, rbt, btsize); - if (rbt->bt_objset != 0) { - ASSERT3U(rbt->bt_objset, ==, wbt->bt_objset); - ASSERT3U(rbt->bt_object, ==, wbt->bt_object); - ASSERT3U(rbt->bt_offset, ==, wbt->bt_offset); - ASSERT3U(rbt->bt_txg, <=, wbt->bt_txg); - } - if (ztest_random(10) == 0) { - int newsize = (ztest_random(db->db_size / - btsize) + 1) * btsize; - - ASSERT3U(newsize, >=, btsize); - ASSERT3U(newsize, <=, db->db_size); - VERIFY3U(dmu_set_bonus(db, newsize, tx), ==, 0); - dboff = (char *)db->db_data + newsize - btsize; - } - dmu_buf_will_dirty(db, tx); - bcopy(wbt, dboff, btsize); - dmu_buf_rele(db, FTAG); - za->za_dbuf = NULL; - } else if (do_free) { - VERIFY(dmu_free_range(os, ZTEST_DIROBJ, off, bs, tx) == 0); - } else if (abuf == NULL) { - dmu_write(os, ZTEST_DIROBJ, off, btsize, wbt, tx); - } else { - bcopy(wbt, abuf->b_data, btsize); - dmu_assign_arcbuf(bonus_db, off, abuf, tx); - dmu_buf_rele(bonus_db, FTAG); - } - - (void) mutex_unlock(lp); - - if (ztest_random(1000) == 0) - (void) poll(NULL, 0, 1); /* open dn_notxholds window */ + while (ztest_random(10) != 0) + ztest_io(zd, od[0].od_object, offset); +} - dmu_tx_commit(tx); +void +ztest_dmu_prealloc(ztest_ds_t *zd, uint64_t id) +{ + ztest_od_t od[1]; + uint64_t offset = (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT)) + + (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT); + uint64_t count = ztest_random(20) + 1; + uint64_t blocksize = ztest_random_blocksize(); + void *data; - if (ztest_random(10000) == 0) - txg_wait_synced(dmu_objset_pool(os), txg); + ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0); - if (off == -1ULL || do_free) + if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0) return; - if (ztest_random(2) != 0) + if (ztest_truncate(zd, od[0].od_object, offset, count * blocksize) != 0) return; - /* - * dmu_sync() the block we just wrote. - */ - (void) mutex_lock(lp); - - blkoff = P2ALIGN_TYPED(off, bs, uint64_t); - error = dmu_buf_hold(os, ZTEST_DIROBJ, blkoff, FTAG, &db); - za->za_dbuf = db; - if (error) { - (void) mutex_unlock(lp); - return; - } - blkoff = off - blkoff; - error = dmu_sync(NULL, db, &blk, txg, NULL, NULL); - dmu_buf_rele(db, FTAG); - za->za_dbuf = NULL; + ztest_prealloc(zd, od[0].od_object, offset, count * blocksize); - if (error) { - (void) mutex_unlock(lp); - return; - } + data = umem_zalloc(blocksize, UMEM_NOFAIL); - if (blk.blk_birth == 0) { /* concurrent free */ - (void) mutex_unlock(lp); - return; + while (ztest_random(count) != 0) { + uint64_t randoff = offset + (ztest_random(count) * blocksize); + if (ztest_write(zd, od[0].od_object, randoff, blocksize, + data) != 0) + break; + while (ztest_random(4) != 0) + ztest_io(zd, od[0].od_object, randoff); } - txg_suspend(dmu_objset_pool(os)); - - (void) mutex_unlock(lp); - - ASSERT(blk.blk_fill == 1); - ASSERT3U(BP_GET_TYPE(&blk), ==, DMU_OT_UINT64_OTHER); - ASSERT3U(BP_GET_LEVEL(&blk), ==, 0); - ASSERT3U(BP_GET_LSIZE(&blk), ==, bs); - - /* - * Read the block that dmu_sync() returned to make sure its contents - * match what we wrote. We do this while still txg_suspend()ed - * to ensure that the block can't be reused before we read it. - */ - zb.zb_objset = dmu_objset_id(os); - zb.zb_object = ZTEST_DIROBJ; - zb.zb_level = 0; - zb.zb_blkid = off / bs; - error = zio_wait(zio_read(NULL, za->za_spa, &blk, iobuf, bs, - NULL, NULL, ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_MUSTSUCCEED, &zb)); - ASSERT3U(error, ==, 0); - - txg_resume(dmu_objset_pool(os)); - - bcopy(&iobuf[blkoff], rbt, btsize); - - if (rbt->bt_objset == 0) /* concurrent free */ - return; - - if (wbt->bt_objset == 0) /* all-zero overwrite */ - return; - - ASSERT3U(rbt->bt_objset, ==, wbt->bt_objset); - ASSERT3U(rbt->bt_object, ==, wbt->bt_object); - ASSERT3U(rbt->bt_offset, ==, wbt->bt_offset); - - /* - * The semantic of dmu_sync() is that we always push the most recent - * version of the data, so in the face of concurrent updates we may - * see a newer version of the block. That's OK. - */ - ASSERT3U(rbt->bt_txg, >=, wbt->bt_txg); - if (rbt->bt_thread == wbt->bt_thread) - ASSERT3U(rbt->bt_seq, ==, wbt->bt_seq); - else - ASSERT3U(rbt->bt_seq, >, wbt->bt_seq); + umem_free(data, blocksize); } /* @@ -2760,9 +3732,10 @@ ztest_dmu_write_parallel(ztest_args_t *za) #define ZTEST_ZAP_MAX_PROPS 1000 void -ztest_zap(ztest_args_t *za) +ztest_zap(ztest_ds_t *zd, uint64_t id) { - objset_t *os = za->za_os; + objset_t *os = zd->zd_os; + ztest_od_t od[1]; uint64_t object; uint64_t txg, last_txg; uint64_t value[ZTEST_ZAP_MAX_INTS]; @@ -2771,64 +3744,45 @@ ztest_zap(ztest_args_t *za) dmu_tx_t *tx; char propname[100], txgname[100]; int error; - char osname[MAXNAMELEN]; char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" }; - dmu_objset_name(os, osname); + ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0); - /* - * Create a new object if necessary, and record it in the directory. - */ - VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &object, DMU_READ_PREFETCH)); + if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0) + return; - if (object == 0) { - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t)); - dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create zap test obj"); - dmu_tx_abort(tx); - return; - } - object = zap_create(os, DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx); - if (error) { - fatal(0, "zap_create('%s', %llu) = %d", - osname, object, error); - } - ASSERT(object != 0); - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &object, tx); - /* - * Generate a known hash collision, and verify that - * we can lookup and remove both entries. - */ - for (i = 0; i < 2; i++) { - value[i] = i; - error = zap_add(os, object, hc[i], sizeof (uint64_t), - 1, &value[i], tx); - ASSERT3U(error, ==, 0); - } - for (i = 0; i < 2; i++) { - error = zap_add(os, object, hc[i], sizeof (uint64_t), - 1, &value[i], tx); - ASSERT3U(error, ==, EEXIST); - error = zap_length(os, object, hc[i], - &zl_intsize, &zl_ints); - ASSERT3U(error, ==, 0); - ASSERT3U(zl_intsize, ==, sizeof (uint64_t)); - ASSERT3U(zl_ints, ==, 1); - } - for (i = 0; i < 2; i++) { - error = zap_remove(os, object, hc[i], tx); - ASSERT3U(error, ==, 0); - } + object = od[0].od_object; - dmu_tx_commit(tx); + /* + * Generate a known hash collision, and verify that + * we can lookup and remove both entries. + */ + tx = dmu_tx_create(os); + dmu_tx_hold_zap(tx, object, B_TRUE, NULL); + txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG); + if (txg == 0) + return; + for (i = 0; i < 2; i++) { + value[i] = i; + VERIFY3U(0, ==, zap_add(os, object, hc[i], sizeof (uint64_t), + 1, &value[i], tx)); } + for (i = 0; i < 2; i++) { + VERIFY3U(EEXIST, ==, zap_add(os, object, hc[i], + sizeof (uint64_t), 1, &value[i], tx)); + VERIFY3U(0, ==, + zap_length(os, object, hc[i], &zl_intsize, &zl_ints)); + ASSERT3U(zl_intsize, ==, sizeof (uint64_t)); + ASSERT3U(zl_ints, ==, 1); + } + for (i = 0; i < 2; i++) { + VERIFY3U(0, ==, zap_remove(os, object, hc[i], tx)); + } + dmu_tx_commit(tx); + /* + * Generate a buch of random entries. + */ ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS); prop = ztest_random(ZTEST_ZAP_MAX_PROPS); @@ -2872,14 +3826,10 @@ ztest_zap(ztest_args_t *za) * should be txg + object + n. */ tx = dmu_tx_create(os); - dmu_tx_hold_zap(tx, object, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create zap entry"); - dmu_tx_abort(tx); + dmu_tx_hold_zap(tx, object, B_TRUE, NULL); + txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG); + if (txg == 0) return; - } - txg = dmu_tx_get_txg(tx); if (last_txg > txg) fatal(0, "zap future leak: old %llu new %llu", last_txg, txg); @@ -2887,16 +3837,10 @@ ztest_zap(ztest_args_t *za) for (i = 0; i < ints; i++) value[i] = txg + object + i; - error = zap_update(os, object, txgname, sizeof (uint64_t), 1, &txg, tx); - if (error) - fatal(0, "zap_update('%s', %llu, '%s') = %d", - osname, object, txgname, error); - - error = zap_update(os, object, propname, sizeof (uint64_t), - ints, value, tx); - if (error) - fatal(0, "zap_update('%s', %llu, '%s') = %d", - osname, object, propname, error); + VERIFY3U(0, ==, zap_update(os, object, txgname, sizeof (uint64_t), + 1, &txg, tx)); + VERIFY3U(0, ==, zap_update(os, object, propname, sizeof (uint64_t), + ints, value, tx)); dmu_tx_commit(tx); @@ -2915,60 +3859,78 @@ ztest_zap(ztest_args_t *za) ASSERT3U(error, ==, 0); tx = dmu_tx_create(os); - dmu_tx_hold_zap(tx, object, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("remove zap entry"); - dmu_tx_abort(tx); + dmu_tx_hold_zap(tx, object, B_TRUE, NULL); + txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG); + if (txg == 0) return; - } - error = zap_remove(os, object, txgname, tx); - if (error) - fatal(0, "zap_remove('%s', %llu, '%s') = %d", - osname, object, txgname, error); + VERIFY3U(0, ==, zap_remove(os, object, txgname, tx)); + VERIFY3U(0, ==, zap_remove(os, object, propname, tx)); + dmu_tx_commit(tx); +} - error = zap_remove(os, object, propname, tx); - if (error) - fatal(0, "zap_remove('%s', %llu, '%s') = %d", - osname, object, propname, error); +/* + * Testcase to test the upgrading of a microzap to fatzap. + */ +void +ztest_fzap(ztest_ds_t *zd, uint64_t id) +{ + objset_t *os = zd->zd_os; + ztest_od_t od[1]; + uint64_t object, txg; - dmu_tx_commit(tx); + ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0); + + if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0) + return; + + object = od[0].od_object; /* - * Once in a while, destroy the object. + * Add entries to this ZAP and make sure it spills over + * and gets upgraded to a fatzap. Also, since we are adding + * 2050 entries we should see ptrtbl growth and leaf-block split. */ - if (ztest_random(1000) != 0) - return; + for (int i = 0; i < 2050; i++) { + char name[MAXNAMELEN]; + uint64_t value = i; + dmu_tx_t *tx; + int error; - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t)); - dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("destroy zap object"); - dmu_tx_abort(tx); - return; + (void) snprintf(name, sizeof (name), "fzap-%llu-%llu", + id, value); + + tx = dmu_tx_create(os); + dmu_tx_hold_zap(tx, object, B_TRUE, name); + txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG); + if (txg == 0) + return; + error = zap_add(os, object, name, sizeof (uint64_t), 1, + &value, tx); + ASSERT(error == 0 || error == EEXIST); + dmu_tx_commit(tx); } - error = zap_destroy(os, object, tx); - if (error) - fatal(0, "zap_destroy('%s', %llu) = %d", - osname, object, error); - object = 0; - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t), - &object, tx); - dmu_tx_commit(tx); } +/* ARGSUSED */ void -ztest_zap_parallel(ztest_args_t *za) +ztest_zap_parallel(ztest_ds_t *zd, uint64_t id) { - objset_t *os = za->za_os; + objset_t *os = zd->zd_os; + ztest_od_t od[1]; uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc; dmu_tx_t *tx; int i, namelen, error; + int micro = ztest_random(2); char name[20], string_value[20]; void *data; + ztest_od_init(&od[0], ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER, 0, 0); + + if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0) + return; + + object = od[0].od_object; + /* * Generate a random name of the form 'xxx.....' where each * x is a random printable character and the dots are dots. @@ -2983,12 +3945,7 @@ ztest_zap_parallel(ztest_args_t *za) name[i] = '.'; name[i] = '\0'; - if (ztest_random(2) == 0) - object = ZTEST_MICROZAP_OBJ; - else - object = ZTEST_FATZAP_OBJ; - - if ((namelen & 1) || object == ZTEST_MICROZAP_OBJ) { + if ((namelen & 1) || micro) { wsize = sizeof (txg); wc = 1; data = &txg; @@ -3009,14 +3966,10 @@ ztest_zap_parallel(ztest_args_t *za) if (i >= 2) { tx = dmu_tx_create(os); - dmu_tx_hold_zap(tx, object, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("zap parallel"); - dmu_tx_abort(tx); + dmu_tx_hold_zap(tx, object, B_TRUE, NULL); + txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG); + if (txg == 0) return; - } - txg = dmu_tx_get_txg(tx); bcopy(name, string_value, namelen); } else { tx = NULL; @@ -3067,79 +4020,397 @@ ztest_zap_parallel(ztest_args_t *za) dmu_tx_commit(tx); } +/* + * Commit callback data. + */ +typedef struct ztest_cb_data { + list_node_t zcd_node; + uint64_t zcd_txg; + int zcd_expected_err; + boolean_t zcd_added; + boolean_t zcd_called; + spa_t *zcd_spa; +} ztest_cb_data_t; + +/* This is the actual commit callback function */ +static void +ztest_commit_callback(void *arg, int error) +{ + ztest_cb_data_t *data = arg; + uint64_t synced_txg; + + VERIFY(data != NULL); + VERIFY3S(data->zcd_expected_err, ==, error); + VERIFY(!data->zcd_called); + + synced_txg = spa_last_synced_txg(data->zcd_spa); + if (data->zcd_txg > synced_txg) + fatal(0, "commit callback of txg %" PRIu64 " called prematurely" + ", last synced txg = %" PRIu64 "\n", data->zcd_txg, + synced_txg); + + data->zcd_called = B_TRUE; + + if (error == ECANCELED) { + ASSERT3U(data->zcd_txg, ==, 0); + ASSERT(!data->zcd_added); + + /* + * The private callback data should be destroyed here, but + * since we are going to check the zcd_called field after + * dmu_tx_abort(), we will destroy it there. + */ + return; + } + + /* Was this callback added to the global callback list? */ + if (!data->zcd_added) + goto out; + + ASSERT3U(data->zcd_txg, !=, 0); + + /* Remove our callback from the list */ + (void) mutex_lock(&zcl.zcl_callbacks_lock); + list_remove(&zcl.zcl_callbacks, data); + (void) mutex_unlock(&zcl.zcl_callbacks_lock); + +out: + umem_free(data, sizeof (ztest_cb_data_t)); +} + +/* Allocate and initialize callback data structure */ +static ztest_cb_data_t * +ztest_create_cb_data(objset_t *os, uint64_t txg) +{ + ztest_cb_data_t *cb_data; + + cb_data = umem_zalloc(sizeof (ztest_cb_data_t), UMEM_NOFAIL); + + cb_data->zcd_txg = txg; + cb_data->zcd_spa = dmu_objset_spa(os); + + return (cb_data); +} + +/* + * If a number of txgs equal to this threshold have been created after a commit + * callback has been registered but not called, then we assume there is an + * implementation bug. + */ +#define ZTEST_COMMIT_CALLBACK_THRESH (TXG_CONCURRENT_STATES + 2) + +/* + * Commit callback test. + */ void -ztest_dsl_prop_get_set(ztest_args_t *za) +ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id) +{ + objset_t *os = zd->zd_os; + ztest_od_t od[1]; + dmu_tx_t *tx; + ztest_cb_data_t *cb_data[3], *tmp_cb; + uint64_t old_txg, txg; + int i, error; + + ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0); + + if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0) + return; + + tx = dmu_tx_create(os); + + cb_data[0] = ztest_create_cb_data(os, 0); + dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[0]); + + dmu_tx_hold_write(tx, od[0].od_object, 0, sizeof (uint64_t)); + + /* Every once in a while, abort the transaction on purpose */ + if (ztest_random(100) == 0) + error = -1; + + if (!error) + error = dmu_tx_assign(tx, TXG_NOWAIT); + + txg = error ? 0 : dmu_tx_get_txg(tx); + + cb_data[0]->zcd_txg = txg; + cb_data[1] = ztest_create_cb_data(os, txg); + dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[1]); + + if (error) { + /* + * It's not a strict requirement to call the registered + * callbacks from inside dmu_tx_abort(), but that's what + * it's supposed to happen in the current implementation + * so we will check for that. + */ + for (i = 0; i < 2; i++) { + cb_data[i]->zcd_expected_err = ECANCELED; + VERIFY(!cb_data[i]->zcd_called); + } + + dmu_tx_abort(tx); + + for (i = 0; i < 2; i++) { + VERIFY(cb_data[i]->zcd_called); + umem_free(cb_data[i], sizeof (ztest_cb_data_t)); + } + + return; + } + + cb_data[2] = ztest_create_cb_data(os, txg); + dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[2]); + + /* + * Read existing data to make sure there isn't a future leak. + */ + VERIFY(0 == dmu_read(os, od[0].od_object, 0, sizeof (uint64_t), + &old_txg, DMU_READ_PREFETCH)); + + if (old_txg > txg) + fatal(0, "future leak: got %" PRIu64 ", open txg is %" PRIu64, + old_txg, txg); + + dmu_write(os, od[0].od_object, 0, sizeof (uint64_t), &txg, tx); + + (void) mutex_lock(&zcl.zcl_callbacks_lock); + + /* + * Since commit callbacks don't have any ordering requirement and since + * it is theoretically possible for a commit callback to be called + * after an arbitrary amount of time has elapsed since its txg has been + * synced, it is difficult to reliably determine whether a commit + * callback hasn't been called due to high load or due to a flawed + * implementation. + * + * In practice, we will assume that if after a certain number of txgs a + * commit callback hasn't been called, then most likely there's an + * implementation bug.. + */ + tmp_cb = list_head(&zcl.zcl_callbacks); + if (tmp_cb != NULL && + tmp_cb->zcd_txg > txg - ZTEST_COMMIT_CALLBACK_THRESH) { + fatal(0, "Commit callback threshold exceeded, oldest txg: %" + PRIu64 ", open txg: %" PRIu64 "\n", tmp_cb->zcd_txg, txg); + } + + /* + * Let's find the place to insert our callbacks. + * + * Even though the list is ordered by txg, it is possible for the + * insertion point to not be the end because our txg may already be + * quiescing at this point and other callbacks in the open txg + * (from other objsets) may have sneaked in. + */ + tmp_cb = list_tail(&zcl.zcl_callbacks); + while (tmp_cb != NULL && tmp_cb->zcd_txg > txg) + tmp_cb = list_prev(&zcl.zcl_callbacks, tmp_cb); + + /* Add the 3 callbacks to the list */ + for (i = 0; i < 3; i++) { + if (tmp_cb == NULL) + list_insert_head(&zcl.zcl_callbacks, cb_data[i]); + else + list_insert_after(&zcl.zcl_callbacks, tmp_cb, + cb_data[i]); + + cb_data[i]->zcd_added = B_TRUE; + VERIFY(!cb_data[i]->zcd_called); + + tmp_cb = cb_data[i]; + } + + (void) mutex_unlock(&zcl.zcl_callbacks_lock); + + dmu_tx_commit(tx); +} + +/* ARGSUSED */ +void +ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id) +{ + zfs_prop_t proplist[] = { + ZFS_PROP_CHECKSUM, + ZFS_PROP_COMPRESSION, + ZFS_PROP_COPIES, + ZFS_PROP_DEDUP + }; + ztest_shared_t *zs = ztest_shared; + + (void) rw_rdlock(&zs->zs_name_lock); + + for (int p = 0; p < sizeof (proplist) / sizeof (proplist[0]); p++) + (void) ztest_dsl_prop_set_uint64(zd->zd_name, proplist[p], + ztest_random_dsl_prop(proplist[p]), (int)ztest_random(2)); + + (void) rw_unlock(&zs->zs_name_lock); +} + +/* ARGSUSED */ +void +ztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id) +{ + ztest_shared_t *zs = ztest_shared; + nvlist_t *props = NULL; + + (void) rw_rdlock(&zs->zs_name_lock); + + (void) ztest_spa_prop_set_uint64(zs, ZPOOL_PROP_DEDUPDITTO, + ZIO_DEDUPDITTO_MIN + ztest_random(ZIO_DEDUPDITTO_MIN)); + + VERIFY3U(spa_prop_get(zs->zs_spa, &props), ==, 0); + + if (zopt_verbose >= 6) + dump_nvlist(props, 4); + + nvlist_free(props); + + (void) rw_unlock(&zs->zs_name_lock); +} + +/* + * Test snapshot hold/release and deferred destroy. + */ +void +ztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id) { - objset_t *os = za->za_os; - int i, inherit; - uint64_t value; - const char *prop, *valname; - char setpoint[MAXPATHLEN]; - char osname[MAXNAMELEN]; int error; + objset_t *os = zd->zd_os; + objset_t *origin; + char snapname[100]; + char fullname[100]; + char clonename[100]; + char tag[100]; + char osname[MAXNAMELEN]; (void) rw_rdlock(&ztest_shared->zs_name_lock); dmu_objset_name(os, osname); - for (i = 0; i < 2; i++) { - if (i == 0) { - prop = "checksum"; - value = ztest_random_checksum(); - inherit = (value == ZIO_CHECKSUM_INHERIT); - } else { - prop = "compression"; - value = ztest_random_compress(); - inherit = (value == ZIO_COMPRESS_INHERIT); + (void) snprintf(snapname, 100, "sh1_%llu", id); + (void) snprintf(fullname, 100, "%s@%s", osname, snapname); + (void) snprintf(clonename, 100, "%s/ch1_%llu", osname, id); + (void) snprintf(tag, 100, "%tag_%llu", id); + + /* + * Clean up from any previous run. + */ + (void) dmu_objset_destroy(clonename, B_FALSE); + (void) dsl_dataset_user_release(osname, snapname, tag, B_FALSE); + (void) dmu_objset_destroy(fullname, B_FALSE); + + /* + * Create snapshot, clone it, mark snap for deferred destroy, + * destroy clone, verify snap was also destroyed. + */ + error = dmu_objset_snapshot(osname, snapname, NULL, FALSE); + if (error) { + if (error == ENOSPC) { + ztest_record_enospc("dmu_objset_snapshot"); + goto out; } + fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error); + } - error = dsl_prop_set(osname, prop, sizeof (value), - !inherit, &value); + error = dmu_objset_hold(fullname, FTAG, &origin); + if (error) + fatal(0, "dmu_objset_hold(%s) = %d", fullname, error); + error = dmu_objset_clone(clonename, dmu_objset_ds(origin), 0); + dmu_objset_rele(origin, FTAG); + if (error) { if (error == ENOSPC) { - ztest_record_enospc("dsl_prop_set"); - break; + ztest_record_enospc("dmu_objset_clone"); + goto out; } + fatal(0, "dmu_objset_clone(%s) = %d", clonename, error); + } - ASSERT3U(error, ==, 0); + error = dmu_objset_destroy(fullname, B_TRUE); + if (error) { + fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d", + fullname, error); + } - VERIFY3U(dsl_prop_get(osname, prop, sizeof (value), - 1, &value, setpoint), ==, 0); + error = dmu_objset_destroy(clonename, B_FALSE); + if (error) + fatal(0, "dmu_objset_destroy(%s) = %d", clonename, error); - if (i == 0) - valname = zio_checksum_table[value].ci_name; - else - valname = zio_compress_table[value].ci_name; + error = dmu_objset_hold(fullname, FTAG, &origin); + if (error != ENOENT) + fatal(0, "dmu_objset_hold(%s) = %d", fullname, error); - if (zopt_verbose >= 6) { - (void) printf("%s %s = %s for '%s'\n", - osname, prop, valname, setpoint); + /* + * Create snapshot, add temporary hold, verify that we can't + * destroy a held snapshot, mark for deferred destroy, + * release hold, verify snapshot was destroyed. + */ + error = dmu_objset_snapshot(osname, snapname, NULL, FALSE); + if (error) { + if (error == ENOSPC) { + ztest_record_enospc("dmu_objset_snapshot"); + goto out; } + fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error); + } + + error = dsl_dataset_user_hold(osname, snapname, tag, B_FALSE, B_TRUE); + if (error) + fatal(0, "dsl_dataset_user_hold(%s)", fullname, tag); + + error = dmu_objset_destroy(fullname, B_FALSE); + if (error != EBUSY) { + fatal(0, "dmu_objset_destroy(%s, B_FALSE) = %d", + fullname, error); + } + + error = dmu_objset_destroy(fullname, B_TRUE); + if (error) { + fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d", + fullname, error); } + error = dsl_dataset_user_release(osname, snapname, tag, B_FALSE); + if (error) + fatal(0, "dsl_dataset_user_release(%s)", fullname, tag); + + VERIFY(dmu_objset_hold(fullname, FTAG, &origin) == ENOENT); + +out: (void) rw_unlock(&ztest_shared->zs_name_lock); } /* * Inject random faults into the on-disk data. */ +/* ARGSUSED */ void -ztest_fault_inject(ztest_args_t *za) +ztest_fault_inject(ztest_ds_t *zd, uint64_t id) { + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; int fd; uint64_t offset; - uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz; + uint64_t leaves; uint64_t bad = 0x1990c0ffeedecade; uint64_t top, leaf; char path0[MAXPATHLEN]; char pathrand[MAXPATHLEN]; size_t fsize; - spa_t *spa = za->za_spa; int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */ int iters = 1000; - int maxfaults = zopt_maxfaults; + int maxfaults; + int mirror_save; vdev_t *vd0 = NULL; uint64_t guid0 = 0; + boolean_t islog = B_FALSE; + + VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0); + maxfaults = MAXFAULTS(); + leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz; + mirror_save = zs->zs_mirrors; + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); ASSERT(leaves >= 1); @@ -3150,10 +4421,10 @@ ztest_fault_inject(ztest_args_t *za) if (ztest_random(2) == 0) { /* - * Inject errors on a normal data device. + * Inject errors on a normal data device or slog device. */ - top = ztest_random(spa->spa_root_vdev->vdev_children); - leaf = ztest_random(leaves); + top = ztest_random_vdev_top(spa, B_TRUE); + leaf = ztest_random(leaves) + zs->zs_splits; /* * Generate paths to the first leaf in this top-level vdev, @@ -3162,11 +4433,14 @@ ztest_fault_inject(ztest_args_t *za) * and we'll write random garbage to the randomly chosen leaf. */ (void) snprintf(path0, sizeof (path0), ztest_dev_template, - zopt_dir, zopt_pool, top * leaves + 0); + zopt_dir, zopt_pool, top * leaves + zs->zs_splits); (void) snprintf(pathrand, sizeof (pathrand), ztest_dev_template, zopt_dir, zopt_pool, top * leaves + leaf); vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0); + if (vd0 != NULL && vd0->vdev_top->vdev_islog) + islog = B_TRUE; + if (vd0 != NULL && maxfaults != 1) { /* * Make vd0 explicitly claim to be unreadable, @@ -3212,22 +4486,38 @@ ztest_fault_inject(ztest_args_t *za) spa_config_exit(spa, SCL_STATE, FTAG); - if (maxfaults == 0) - return; - /* - * If we can tolerate two or more faults, randomly online/offline vd0. + * If we can tolerate two or more faults, or we're dealing + * with a slog, randomly online/offline vd0. */ - if (maxfaults >= 2 && guid0 != 0) { + if ((maxfaults >= 2 || islog) && guid0 != 0) { if (ztest_random(10) < 6) { int flags = (ztest_random(2) == 0 ? ZFS_OFFLINE_TEMPORARY : 0); + + /* + * We have to grab the zs_name_lock as writer to + * prevent a race between offlining a slog and + * destroying a dataset. Offlining the slog will + * grab a reference on the dataset which may cause + * dmu_objset_destroy() to fail with EBUSY thus + * leaving the dataset in an inconsistent state. + */ + if (islog) + (void) rw_wrlock(&ztest_shared->zs_name_lock); + VERIFY(vdev_offline(spa, guid0, flags) != EBUSY); + + if (islog) + (void) rw_unlock(&ztest_shared->zs_name_lock); } else { (void) vdev_online(spa, guid0, 0, NULL); } } + if (maxfaults == 0) + return; + /* * We have at least single-fault tolerance, so inject data corruption. */ @@ -3246,173 +4536,198 @@ ztest_fault_inject(ztest_args_t *za) if (offset >= fsize) continue; - if (zopt_verbose >= 6) - (void) printf("injecting bad word into %s," - " offset 0x%llx\n", pathrand, (u_longlong_t)offset); + VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0); + if (mirror_save != zs->zs_mirrors) { + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); + (void) close(fd); + return; + } if (pwrite(fd, &bad, sizeof (bad), offset) != sizeof (bad)) fatal(1, "can't inject bad word at 0x%llx in %s", offset, pathrand); + + VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0); + + if (zopt_verbose >= 7) + (void) printf("injected bad word into %s," + " offset 0x%llx\n", pathrand, (u_longlong_t)offset); } (void) close(fd); } /* - * Scrub the pool. + * Verify that DDT repair works as expected. */ void -ztest_scrub(ztest_args_t *za) +ztest_ddt_repair(ztest_ds_t *zd, uint64_t id) { - spa_t *spa = za->za_spa; + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; + objset_t *os = zd->zd_os; + ztest_od_t od[1]; + uint64_t object, blocksize, txg, pattern, psize; + enum zio_checksum checksum = spa_dedup_checksum(spa); + dmu_buf_t *db; + dmu_tx_t *tx; + void *buf; + blkptr_t blk; + int copies = 2 * ZIO_DEDUPDITTO_MIN; - (void) spa_scrub(spa, POOL_SCRUB_EVERYTHING); - (void) poll(NULL, 0, 1000); /* wait a second, then force a restart */ - (void) spa_scrub(spa, POOL_SCRUB_EVERYTHING); -} + blocksize = ztest_random_blocksize(); + blocksize = MIN(blocksize, 2048); /* because we write so many */ -/* - * Rename the pool to a different name and then rename it back. - */ -void -ztest_spa_rename(ztest_args_t *za) -{ - char *oldname, *newname; - int error; - spa_t *spa; - - (void) rw_wrlock(&ztest_shared->zs_name_lock); + ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0); - oldname = za->za_pool; - newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL); - (void) strcpy(newname, oldname); - (void) strcat(newname, "_tmp"); + if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0) + return; /* - * Do the rename + * Take the name lock as writer to prevent anyone else from changing + * the pool and dataset properies we need to maintain during this test. */ - error = spa_rename(oldname, newname); - if (error) - fatal(0, "spa_rename('%s', '%s') = %d", oldname, - newname, error); + (void) rw_wrlock(&zs->zs_name_lock); - /* - * Try to open it under the old name, which shouldn't exist - */ - error = spa_open(oldname, &spa, FTAG); - if (error != ENOENT) - fatal(0, "spa_open('%s') = %d", oldname, error); + if (ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_DEDUP, checksum, + B_FALSE) != 0 || + ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_COPIES, 1, + B_FALSE) != 0) { + (void) rw_unlock(&zs->zs_name_lock); + return; + } + + object = od[0].od_object; + blocksize = od[0].od_blocksize; + pattern = spa_guid(spa) ^ dmu_objset_fsid_guid(os); + + ASSERT(object != 0); + + tx = dmu_tx_create(os); + dmu_tx_hold_write(tx, object, 0, copies * blocksize); + txg = ztest_tx_assign(tx, TXG_WAIT, FTAG); + if (txg == 0) { + (void) rw_unlock(&zs->zs_name_lock); + return; + } /* - * Open it under the new name and make sure it's still the same spa_t. + * Write all the copies of our block. */ - error = spa_open(newname, &spa, FTAG); - if (error != 0) - fatal(0, "spa_open('%s') = %d", newname, error); + for (int i = 0; i < copies; i++) { + uint64_t offset = i * blocksize; + VERIFY(dmu_buf_hold(os, object, offset, FTAG, &db, + DMU_READ_NO_PREFETCH) == 0); + ASSERT(db->db_offset == offset); + ASSERT(db->db_size == blocksize); + ASSERT(ztest_pattern_match(db->db_data, db->db_size, pattern) || + ztest_pattern_match(db->db_data, db->db_size, 0ULL)); + dmu_buf_will_fill(db, tx); + ztest_pattern_set(db->db_data, db->db_size, pattern); + dmu_buf_rele(db, FTAG); + } - ASSERT(spa == za->za_spa); - spa_close(spa, FTAG); + dmu_tx_commit(tx); + txg_wait_synced(spa_get_dsl(spa), txg); /* - * Rename it back to the original + * Find out what block we got. */ - error = spa_rename(newname, oldname); - if (error) - fatal(0, "spa_rename('%s', '%s') = %d", newname, - oldname, error); + VERIFY(dmu_buf_hold(os, object, 0, FTAG, &db, + DMU_READ_NO_PREFETCH) == 0); + blk = *((dmu_buf_impl_t *)db)->db_blkptr; + dmu_buf_rele(db, FTAG); /* - * Make sure it can still be opened + * Damage the block. Dedup-ditto will save us when we read it later. */ - error = spa_open(oldname, &spa, FTAG); - if (error != 0) - fatal(0, "spa_open('%s') = %d", oldname, error); + psize = BP_GET_PSIZE(&blk); + buf = zio_buf_alloc(psize); + ztest_pattern_set(buf, psize, ~pattern); - ASSERT(spa == za->za_spa); - spa_close(spa, FTAG); + (void) zio_wait(zio_rewrite(NULL, spa, 0, &blk, + buf, psize, NULL, NULL, ZIO_PRIORITY_SYNC_WRITE, + ZIO_FLAG_CANFAIL | ZIO_FLAG_INDUCE_DAMAGE, NULL)); - umem_free(newname, strlen(newname) + 1); + zio_buf_free(buf, psize); - (void) rw_unlock(&ztest_shared->zs_name_lock); + (void) rw_unlock(&zs->zs_name_lock); } - /* - * Completely obliterate one disk. + * Scrub the pool. */ -static void -ztest_obliterate_one_disk(uint64_t vdev) +/* ARGSUSED */ +void +ztest_scrub(ztest_ds_t *zd, uint64_t id) { - int fd; - char dev_name[MAXPATHLEN], copy_name[MAXPATHLEN]; - size_t fsize; + ztest_shared_t *zs = ztest_shared; + spa_t *spa = zs->zs_spa; - if (zopt_maxfaults < 2) - return; + (void) spa_scan(spa, POOL_SCAN_SCRUB); + (void) poll(NULL, 0, 100); /* wait a moment, then force a restart */ + (void) spa_scan(spa, POOL_SCAN_SCRUB); +} - (void) sprintf(dev_name, ztest_dev_template, zopt_dir, zopt_pool, vdev); - (void) snprintf(copy_name, MAXPATHLEN, "%s.old", dev_name); +/* + * Rename the pool to a different name and then rename it back. + */ +/* ARGSUSED */ +void +ztest_spa_rename(ztest_ds_t *zd, uint64_t id) +{ + ztest_shared_t *zs = ztest_shared; + char *oldname, *newname; + spa_t *spa; - fd = open(dev_name, O_RDWR); + (void) rw_wrlock(&zs->zs_name_lock); - if (fd == -1) - fatal(1, "can't open %s", dev_name); + oldname = zs->zs_pool; + newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL); + (void) strcpy(newname, oldname); + (void) strcat(newname, "_tmp"); /* - * Determine the size. + * Do the rename */ - fsize = lseek(fd, 0, SEEK_END); - - (void) close(fd); + VERIFY3U(0, ==, spa_rename(oldname, newname)); /* - * Rename the old device to dev_name.old (useful for debugging). + * Try to open it under the old name, which shouldn't exist */ - VERIFY(rename(dev_name, copy_name) == 0); + VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG)); /* - * Create a new one. + * Open it under the new name and make sure it's still the same spa_t. */ - VERIFY((fd = open(dev_name, O_RDWR | O_CREAT | O_TRUNC, 0666)) >= 0); - VERIFY(ftruncate(fd, fsize) == 0); - (void) close(fd); -} + VERIFY3U(0, ==, spa_open(newname, &spa, FTAG)); -static void -ztest_replace_one_disk(spa_t *spa, uint64_t vdev) -{ - char dev_name[MAXPATHLEN]; - nvlist_t *root; - int error; - uint64_t guid; - vdev_t *vd; + ASSERT(spa == zs->zs_spa); + spa_close(spa, FTAG); - (void) sprintf(dev_name, ztest_dev_template, zopt_dir, zopt_pool, vdev); + /* + * Rename it back to the original + */ + VERIFY3U(0, ==, spa_rename(newname, oldname)); /* - * Build the nvlist describing dev_name. + * Make sure it can still be opened */ - root = make_vdev_root(dev_name, NULL, 0, 0, 0, 0, 0, 1); + VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG)); - spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); - if ((vd = vdev_lookup_by_path(spa->spa_root_vdev, dev_name)) == NULL) - guid = 0; - else - guid = vd->vdev_guid; - spa_config_exit(spa, SCL_VDEV, FTAG); - error = spa_vdev_attach(spa, guid, root, B_TRUE); - if (error != 0 && - error != EBUSY && - error != ENOTSUP && - error != ENODEV && - error != EDOM) - fatal(0, "spa_vdev_attach(in-place) = %d", error); + ASSERT(spa == zs->zs_spa); + spa_close(spa, FTAG); - nvlist_free(root); + umem_free(newname, strlen(newname) + 1); + + (void) rw_unlock(&zs->zs_name_lock); } +/* + * Verify pool integrity by running zdb. + */ static void -ztest_verify_blocks(char *pool) +ztest_run_zdb(char *pool) { int status; char zdb[MAXPATHLEN + MAXNAMELEN + 20]; @@ -3433,11 +4748,12 @@ ztest_verify_blocks(char *pool) isa = strdup(isa); /* LINTED */ (void) sprintf(bin, - "/usr/sbin%.*s/zdb -bcc%s%s -U /tmp/zpool.cache %s", + "/usr/sbin%.*s/zdb -bcc%s%s -U %s %s", isalen, isa, zopt_verbose >= 3 ? "s" : "", zopt_verbose >= 4 ? "v" : "", + spa_config_path, pool); free(isa); @@ -3483,7 +4799,6 @@ ztest_spa_import_export(char *oldname, char *newname) nvlist_t *config, *newconfig; uint64_t pool_guid; spa_t *spa; - int error; if (zopt_verbose >= 4) { (void) printf("import/export: old = %s, new = %s\n", @@ -3498,15 +4813,13 @@ ztest_spa_import_export(char *oldname, char *newname) /* * Get the pool's configuration and guid. */ - error = spa_open(oldname, &spa, FTAG); - if (error) - fatal(0, "spa_open('%s') = %d", oldname, error); + VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG)); /* * Kick off a scrub to tickle scrub/export races. */ if (ztest_random(2) == 0) - (void) spa_scrub(spa, POOL_SCRUB_EVERYTHING); + (void) spa_scan(spa, POOL_SCAN_SCRUB); pool_guid = spa_guid(spa); spa_close(spa, FTAG); @@ -3516,9 +4829,7 @@ ztest_spa_import_export(char *oldname, char *newname) /* * Export it. */ - error = spa_export(oldname, &config, B_FALSE, B_FALSE); - if (error) - fatal(0, "spa_export('%s') = %d", oldname, error); + VERIFY3U(0, ==, spa_export(oldname, &config, B_FALSE, B_FALSE)); ztest_walk_pool_directory("pools after export"); @@ -3532,39 +4843,29 @@ ztest_spa_import_export(char *oldname, char *newname) /* * Import it under the new name. */ - error = spa_import(newname, config, NULL); - if (error) - fatal(0, "spa_import('%s') = %d", newname, error); + VERIFY3U(0, ==, spa_import(newname, config, NULL)); ztest_walk_pool_directory("pools after import"); /* * Try to import it again -- should fail with EEXIST. */ - error = spa_import(newname, config, NULL); - if (error != EEXIST) - fatal(0, "spa_import('%s') twice", newname); + VERIFY3U(EEXIST, ==, spa_import(newname, config, NULL)); /* * Try to import it under a different name -- should fail with EEXIST. */ - error = spa_import(oldname, config, NULL); - if (error != EEXIST) - fatal(0, "spa_import('%s') under multiple names", newname); + VERIFY3U(EEXIST, ==, spa_import(oldname, config, NULL)); /* * Verify that the pool is no longer visible under the old name. */ - error = spa_open(oldname, &spa, FTAG); - if (error != ENOENT) - fatal(0, "spa_open('%s') = %d", newname, error); + VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG)); /* * Verify that we can open and close the pool using the new name. */ - error = spa_open(newname, &spa, FTAG); - if (error) - fatal(0, "spa_open('%s') = %d", newname, error); + VERIFY3U(0, ==, spa_open(newname, &spa, FTAG)); ASSERT(pool_guid == spa_guid(spa)); spa_close(spa, FTAG); @@ -3574,12 +4875,12 @@ ztest_spa_import_export(char *oldname, char *newname) static void ztest_resume(spa_t *spa) { - if (spa_suspended(spa)) { - spa_vdev_state_enter(spa); - vdev_clear(spa, NULL); - (void) spa_vdev_state_exit(spa, NULL, 0); - (void) zio_resume(spa); - } + if (spa_suspended(spa) && zopt_verbose >= 6) + (void) printf("resuming from suspended state\n"); + spa_vdev_state_enter(spa, SCL_NONE); + vdev_clear(spa, NULL); + (void) spa_vdev_state_exit(spa, NULL, 0); + (void) zio_resume(spa); } static void * @@ -3588,155 +4889,252 @@ ztest_resume_thread(void *arg) spa_t *spa = arg; while (!ztest_exiting) { - (void) poll(NULL, 0, 1000); - ztest_resume(spa); + if (spa_suspended(spa)) + ztest_resume(spa); + (void) poll(NULL, 0, 100); } return (NULL); } static void * +ztest_deadman_thread(void *arg) +{ + ztest_shared_t *zs = arg; + int grace = 300; + hrtime_t delta; + + delta = (zs->zs_thread_stop - zs->zs_thread_start) / NANOSEC + grace; + + (void) poll(NULL, 0, (int)(1000 * delta)); + + fatal(0, "failed to complete within %d seconds of deadline", grace); + + return (NULL); +} + +static void +ztest_execute(ztest_info_t *zi, uint64_t id) +{ + ztest_shared_t *zs = ztest_shared; + ztest_ds_t *zd = &zs->zs_zd[id % zopt_datasets]; + hrtime_t functime = gethrtime(); + + for (int i = 0; i < zi->zi_iters; i++) + zi->zi_func(zd, id); + + functime = gethrtime() - functime; + + atomic_add_64(&zi->zi_call_count, 1); + atomic_add_64(&zi->zi_call_time, functime); + + if (zopt_verbose >= 4) { + Dl_info dli; + (void) dladdr((void *)zi->zi_func, &dli); + (void) printf("%6.2f sec in %s\n", + (double)functime / NANOSEC, dli.dli_sname); + } +} + +static void * ztest_thread(void *arg) { - ztest_args_t *za = arg; + uint64_t id = (uintptr_t)arg; ztest_shared_t *zs = ztest_shared; - hrtime_t now, functime; + uint64_t call_next; + hrtime_t now; ztest_info_t *zi; - int f, i; - while ((now = gethrtime()) < za->za_stop) { + while ((now = gethrtime()) < zs->zs_thread_stop) { /* * See if it's time to force a crash. */ - if (now > za->za_kill) { - zs->zs_alloc = spa_get_alloc(za->za_spa); - zs->zs_space = spa_get_space(za->za_spa); - (void) kill(getpid(), SIGKILL); - } + if (now > zs->zs_thread_kill) + ztest_kill(zs); /* - * Pick a random function. + * If we're getting ENOSPC with some regularity, stop. */ - f = ztest_random(ZTEST_FUNCS); - zi = &zs->zs_info[f]; + if (zs->zs_enospc_count > 10) + break; /* - * Decide whether to call it, based on the requested frequency. + * Pick a random function to execute. */ - if (zi->zi_call_target == 0 || - (double)zi->zi_call_total / zi->zi_call_target > - (double)(now - zs->zs_start_time) / (zopt_time * NANOSEC)) - continue; + zi = &zs->zs_info[ztest_random(ZTEST_FUNCS)]; + call_next = zi->zi_call_next; + + if (now >= call_next && + atomic_cas_64(&zi->zi_call_next, call_next, call_next + + ztest_random(2 * zi->zi_interval[0] + 1)) == call_next) + ztest_execute(zi, id); + } - atomic_add_64(&zi->zi_calls, 1); - atomic_add_64(&zi->zi_call_total, 1); + return (NULL); +} - za->za_diroff = (za->za_instance * ZTEST_FUNCS + f) * - ZTEST_DIRSIZE; - za->za_diroff_shared = (1ULL << 63); +static void +ztest_dataset_name(char *dsname, char *pool, int d) +{ + (void) snprintf(dsname, MAXNAMELEN, "%s/ds_%d", pool, d); +} - for (i = 0; i < zi->zi_iters; i++) - zi->zi_func(za); +static void +ztest_dataset_destroy(ztest_shared_t *zs, int d) +{ + char name[MAXNAMELEN]; - functime = gethrtime() - now; + ztest_dataset_name(name, zs->zs_pool, d); - atomic_add_64(&zi->zi_call_time, functime); + if (zopt_verbose >= 3) + (void) printf("Destroying %s to free up space\n", name); - if (zopt_verbose >= 4) { - Dl_info dli; - (void) dladdr((void *)zi->zi_func, &dli); - (void) printf("%6.2f sec in %s\n", - (double)functime / NANOSEC, dli.dli_sname); - } + /* + * Cleanup any non-standard clones and snapshots. In general, + * ztest thread t operates on dataset (t % zopt_datasets), + * so there may be more than one thing to clean up. + */ + for (int t = d; t < zopt_threads; t += zopt_datasets) + ztest_dsl_dataset_cleanup(name, t); - /* - * If we're getting ENOSPC with some regularity, stop. - */ - if (zs->zs_enospc_count > 10) - break; + (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL, + DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); +} + +static void +ztest_dataset_dirobj_verify(ztest_ds_t *zd) +{ + uint64_t usedobjs, dirobjs, scratch; + + /* + * ZTEST_DIROBJ is the object directory for the entire dataset. + * Therefore, the number of objects in use should equal the + * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself. + * If not, we have an object leak. + * + * Note that we can only check this in ztest_dataset_open(), + * when the open-context and syncing-context values agree. + * That's because zap_count() returns the open-context value, + * while dmu_objset_space() returns the rootbp fill count. + */ + VERIFY3U(0, ==, zap_count(zd->zd_os, ZTEST_DIROBJ, &dirobjs)); + dmu_objset_space(zd->zd_os, &scratch, &scratch, &usedobjs, &scratch); + ASSERT3U(dirobjs + 1, ==, usedobjs); +} + +static int +ztest_dataset_open(ztest_shared_t *zs, int d) +{ + ztest_ds_t *zd = &zs->zs_zd[d]; + uint64_t committed_seq = zd->zd_seq; + objset_t *os; + zilog_t *zilog; + char name[MAXNAMELEN]; + int error; + + ztest_dataset_name(name, zs->zs_pool, d); + + (void) rw_rdlock(&zs->zs_name_lock); + + error = ztest_dataset_create(name); + if (error == ENOSPC) { + (void) rw_unlock(&zs->zs_name_lock); + ztest_record_enospc(FTAG); + return (error); } + ASSERT(error == 0 || error == EEXIST); - return (NULL); + VERIFY3U(dmu_objset_hold(name, zd, &os), ==, 0); + (void) rw_unlock(&zs->zs_name_lock); + + ztest_zd_init(zd, os); + + zilog = zd->zd_zilog; + + if (zilog->zl_header->zh_claim_lr_seq != 0 && + zilog->zl_header->zh_claim_lr_seq < committed_seq) + fatal(0, "missing log records: claimed %llu < committed %llu", + zilog->zl_header->zh_claim_lr_seq, committed_seq); + + ztest_dataset_dirobj_verify(zd); + + zil_replay(os, zd, ztest_replay_vector); + + ztest_dataset_dirobj_verify(zd); + + if (zopt_verbose >= 6) + (void) printf("%s replay %llu blocks, %llu records, seq %llu\n", + zd->zd_name, + (u_longlong_t)zilog->zl_parse_blk_count, + (u_longlong_t)zilog->zl_parse_lr_count, + (u_longlong_t)zilog->zl_replaying_seq); + + zilog = zil_open(os, ztest_get_data); + + if (zilog->zl_replaying_seq != 0 && + zilog->zl_replaying_seq < committed_seq) + fatal(0, "missing log records: replayed %llu < committed %llu", + zilog->zl_replaying_seq, committed_seq); + + return (0); +} + +static void +ztest_dataset_close(ztest_shared_t *zs, int d) +{ + ztest_ds_t *zd = &zs->zs_zd[d]; + + zil_close(zd->zd_zilog); + dmu_objset_rele(zd->zd_os, zd); + + ztest_zd_fini(zd); } /* * Kick off threads to run tests on all datasets in parallel. */ static void -ztest_run(char *pool) +ztest_run(ztest_shared_t *zs) { - int t, d, error; - ztest_shared_t *zs = ztest_shared; - ztest_args_t *za; + thread_t *tid; spa_t *spa; - char name[100]; thread_t resume_tid; + int error; ztest_exiting = B_FALSE; - (void) _mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL); - (void) rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL); - - for (t = 0; t < ZTEST_SYNC_LOCKS; t++) - (void) _mutex_init(&zs->zs_sync_lock[t], USYNC_THREAD, NULL); - /* - * Destroy one disk before we even start. - * It's mirrored, so everything should work just fine. - * This makes us exercise fault handling very early in spa_load(). + * Initialize parent/child shared state. */ - ztest_obliterate_one_disk(0); + VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0); + VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0); - /* - * Verify that the sum of the sizes of all blocks in the pool - * equals the SPA's allocated space total. - */ - ztest_verify_blocks(pool); - - /* - * Kick off a replacement of the disk we just obliterated. - */ - kernel_init(FREAD | FWRITE); - VERIFY(spa_open(pool, &spa, FTAG) == 0); - ztest_replace_one_disk(spa, 0); - if (zopt_verbose >= 5) - show_pool_stats(spa); - spa_close(spa, FTAG); - kernel_fini(); + zs->zs_thread_start = gethrtime(); + zs->zs_thread_stop = zs->zs_thread_start + zopt_passtime * NANOSEC; + zs->zs_thread_stop = MIN(zs->zs_thread_stop, zs->zs_proc_stop); + zs->zs_thread_kill = zs->zs_thread_stop; + if (ztest_random(100) < zopt_killrate) + zs->zs_thread_kill -= ztest_random(zopt_passtime * NANOSEC); - kernel_init(FREAD | FWRITE); + (void) _mutex_init(&zcl.zcl_callbacks_lock, USYNC_THREAD, NULL); - /* - * Verify that we can export the pool and reimport it under a - * different name. - */ - if (ztest_random(2) == 0) { - (void) snprintf(name, 100, "%s_import", pool); - ztest_spa_import_export(pool, name); - ztest_spa_import_export(name, pool); - } - - /* - * Verify that we can loop over all pools. - */ - mutex_enter(&spa_namespace_lock); - for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa)) { - if (zopt_verbose > 3) { - (void) printf("spa_next: found %s\n", spa_name(spa)); - } - } - mutex_exit(&spa_namespace_lock); + list_create(&zcl.zcl_callbacks, sizeof (ztest_cb_data_t), + offsetof(ztest_cb_data_t, zcd_node)); /* * Open our pool. */ - VERIFY(spa_open(pool, &spa, FTAG) == 0); + kernel_init(FREAD | FWRITE); + VERIFY(spa_open(zs->zs_pool, &spa, FTAG) == 0); + zs->zs_spa = spa; + + spa->spa_dedup_ditto = 2 * ZIO_DEDUPDITTO_MIN; /* * We don't expect the pool to suspend unless maxfaults == 0, * in which case ztest_fault_inject() temporarily takes away * the only valid replica. */ - if (zopt_maxfaults == 0) + if (MAXFAULTS() == 0) spa->spa_failmode = ZIO_FAILURE_MODE_WAIT; else spa->spa_failmode = ZIO_FAILURE_MODE_PANIC; @@ -3748,13 +5146,19 @@ ztest_run(char *pool) &resume_tid) == 0); /* + * Create a deadman thread to abort() if we hang. + */ + VERIFY(thr_create(0, 0, ztest_deadman_thread, zs, THR_BOUND, + NULL) == 0); + + /* * Verify that we can safely inquire about about any object, * whether it's allocated or not. To make it interesting, * we probe a 5-wide window around each power of two. * This hits all edge cases, including zero and the max. */ - for (t = 0; t < 64; t++) { - for (d = -5; d <= 5; d++) { + for (int t = 0; t < 64; t++) { + for (int d = -5; d <= 5; d++) { error = dmu_object_info(spa->spa_meta_objset, (1ULL << t) + d, NULL); ASSERT(error == 0 || error == ENOENT || @@ -3763,121 +5167,157 @@ ztest_run(char *pool) } /* - * Now kick off all the tests that run in parallel. + * If we got any ENOSPC errors on the previous run, destroy something. */ + if (zs->zs_enospc_count != 0) { + int d = ztest_random(zopt_datasets); + ztest_dataset_destroy(zs, d); + } zs->zs_enospc_count = 0; - za = umem_zalloc(zopt_threads * sizeof (ztest_args_t), UMEM_NOFAIL); + tid = umem_zalloc(zopt_threads * sizeof (thread_t), UMEM_NOFAIL); if (zopt_verbose >= 4) (void) printf("starting main threads...\n"); - za[0].za_start = gethrtime(); - za[0].za_stop = za[0].za_start + zopt_passtime * NANOSEC; - za[0].za_stop = MIN(za[0].za_stop, zs->zs_stop_time); - za[0].za_kill = za[0].za_stop; - if (ztest_random(100) < zopt_killrate) - za[0].za_kill -= ztest_random(zopt_passtime * NANOSEC); - - for (t = 0; t < zopt_threads; t++) { - d = t % zopt_datasets; - - (void) strcpy(za[t].za_pool, pool); - za[t].za_os = za[d].za_os; - za[t].za_spa = spa; - za[t].za_zilog = za[d].za_zilog; - za[t].za_instance = t; - za[t].za_random = ztest_random(-1ULL); - za[t].za_start = za[0].za_start; - za[t].za_stop = za[0].za_stop; - za[t].za_kill = za[0].za_kill; - - if (t < zopt_datasets) { - int test_future = FALSE; - (void) rw_rdlock(&ztest_shared->zs_name_lock); - (void) snprintf(name, 100, "%s/%s_%d", pool, pool, d); - error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0, - ztest_create_cb, NULL); - if (error == EEXIST) { - test_future = TRUE; - } else if (error == ENOSPC) { - zs->zs_enospc_count++; - (void) rw_unlock(&ztest_shared->zs_name_lock); - break; - } else if (error != 0) { - fatal(0, "dmu_objset_create(%s) = %d", - name, error); - } - error = dmu_objset_open(name, DMU_OST_OTHER, - DS_MODE_USER, &za[d].za_os); - if (error) - fatal(0, "dmu_objset_open('%s') = %d", - name, error); - (void) rw_unlock(&ztest_shared->zs_name_lock); - if (test_future) - ztest_dmu_check_future_leak(&za[t]); - zil_replay(za[d].za_os, za[d].za_os, - ztest_replay_vector); - za[d].za_zilog = zil_open(za[d].za_os, NULL); - } - - VERIFY(thr_create(0, 0, ztest_thread, &za[t], THR_BOUND, - &za[t].za_thread) == 0); + /* + * Kick off all the tests that run in parallel. + */ + for (int t = 0; t < zopt_threads; t++) { + if (t < zopt_datasets && ztest_dataset_open(zs, t) != 0) + return; + VERIFY(thr_create(0, 0, ztest_thread, (void *)(uintptr_t)t, + THR_BOUND, &tid[t]) == 0); } - while (--t >= 0) { - VERIFY(thr_join(za[t].za_thread, NULL, NULL) == 0); - if (t < zopt_datasets) { - zil_close(za[t].za_zilog); - dmu_objset_close(za[t].za_os); - } + /* + * Wait for all of the tests to complete. We go in reverse order + * so we don't close datasets while threads are still using them. + */ + for (int t = zopt_threads - 1; t >= 0; t--) { + VERIFY(thr_join(tid[t], NULL, NULL) == 0); + if (t < zopt_datasets) + ztest_dataset_close(zs, t); } - if (zopt_verbose >= 3) - show_pool_stats(spa); - txg_wait_synced(spa_get_dsl(spa), 0); - zs->zs_alloc = spa_get_alloc(spa); - zs->zs_space = spa_get_space(spa); + zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); + zs->zs_space = metaslab_class_get_space(spa_normal_class(spa)); + + umem_free(tid, zopt_threads * sizeof (thread_t)); + + /* Kill the resume thread */ + ztest_exiting = B_TRUE; + VERIFY(thr_join(resume_tid, NULL, NULL) == 0); + ztest_resume(spa); + + /* + * Right before closing the pool, kick off a bunch of async I/O; + * spa_close() should wait for it to complete. + */ + for (uint64_t object = 1; object < 50; object++) + dmu_prefetch(spa->spa_meta_objset, object, 0, 1ULL << 20); + + spa_close(spa, FTAG); /* - * If we had out-of-space errors, destroy a random objset. + * Verify that we can loop over all pools. */ - if (zs->zs_enospc_count != 0) { - (void) rw_rdlock(&ztest_shared->zs_name_lock); - d = (int)ztest_random(zopt_datasets); - (void) snprintf(name, 100, "%s/%s_%d", pool, pool, d); - if (zopt_verbose >= 3) - (void) printf("Destroying %s to free up space\n", name); + mutex_enter(&spa_namespace_lock); + for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa)) + if (zopt_verbose > 3) + (void) printf("spa_next: found %s\n", spa_name(spa)); + mutex_exit(&spa_namespace_lock); + + /* + * Verify that we can export the pool and reimport it under a + * different name. + */ + if (ztest_random(2) == 0) { + char name[MAXNAMELEN]; + (void) snprintf(name, MAXNAMELEN, "%s_import", zs->zs_pool); + ztest_spa_import_export(zs->zs_pool, name); + ztest_spa_import_export(name, zs->zs_pool); + } + + kernel_fini(); +} + +static void +ztest_freeze(ztest_shared_t *zs) +{ + ztest_ds_t *zd = &zs->zs_zd[0]; + spa_t *spa; + int numloops = 0; + + if (zopt_verbose >= 3) + (void) printf("testing spa_freeze()...\n"); - /* Cleanup any non-standard clones and snapshots */ - ztest_dsl_dataset_cleanup(name, za[d].za_instance); + kernel_init(FREAD | FWRITE); + VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG)); + VERIFY3U(0, ==, ztest_dataset_open(zs, 0)); - (void) dmu_objset_find(name, ztest_destroy_cb, &za[d], - DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); - (void) rw_unlock(&ztest_shared->zs_name_lock); + /* + * Force the first log block to be transactionally allocated. + * We have to do this before we freeze the pool -- otherwise + * the log chain won't be anchored. + */ + while (BP_IS_HOLE(&zd->zd_zilog->zl_header->zh_log)) { + ztest_dmu_object_alloc_free(zd, 0); + zil_commit(zd->zd_zilog, UINT64_MAX, 0); } txg_wait_synced(spa_get_dsl(spa), 0); - umem_free(za, zopt_threads * sizeof (ztest_args_t)); + /* + * Freeze the pool. This stops spa_sync() from doing anything, + * so that the only way to record changes from now on is the ZIL. + */ + spa_freeze(spa); - /* Kill the resume thread */ - ztest_exiting = B_TRUE; - VERIFY(thr_join(resume_tid, NULL, NULL) == 0); - ztest_resume(spa); + /* + * Run tests that generate log records but don't alter the pool config + * or depend on DSL sync tasks (snapshots, objset create/destroy, etc). + * We do a txg_wait_synced() after each iteration to force the txg + * to increase well beyond the last synced value in the uberblock. + * The ZIL should be OK with that. + */ + while (ztest_random(10) != 0 && numloops++ < zopt_maxloops) { + ztest_dmu_write_parallel(zd, 0); + ztest_dmu_object_alloc_free(zd, 0); + txg_wait_synced(spa_get_dsl(spa), 0); + } /* - * Right before closing the pool, kick off a bunch of async I/O; - * spa_close() should wait for it to complete. + * Commit all of the changes we just generated. */ - for (t = 1; t < 50; t++) - dmu_prefetch(spa->spa_meta_objset, t, 0, 1 << 15); + zil_commit(zd->zd_zilog, UINT64_MAX, 0); + txg_wait_synced(spa_get_dsl(spa), 0); + /* + * Close our dataset and close the pool. + */ + ztest_dataset_close(zs, 0); spa_close(spa, FTAG); + kernel_fini(); + /* + * Open and close the pool and dataset to induce log replay. + */ + kernel_init(FREAD | FWRITE); + VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG)); + VERIFY3U(0, ==, ztest_dataset_open(zs, 0)); + ztest_dataset_close(zs, 0); + spa_close(spa, FTAG); kernel_fini(); + + list_destroy(&zcl.zcl_callbacks); + + (void) _mutex_destroy(&zcl.zcl_callbacks_lock); + + (void) rwlock_destroy(&zs->zs_name_lock); + (void) _mutex_destroy(&zs->zs_vdev_lock); } void @@ -3905,43 +5345,62 @@ print_time(hrtime_t t, char *timebuf) (void) sprintf(timebuf, "%llus", s); } +static nvlist_t * +make_random_props() +{ + nvlist_t *props; + + if (ztest_random(2) == 0) + return (NULL); + + VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0); + VERIFY(nvlist_add_uint64(props, "autoreplace", 1) == 0); + + (void) printf("props:\n"); + dump_nvlist(props, 4); + + return (props); +} + /* * Create a storage pool with the given name and initial vdev size. - * Then create the specified number of datasets in the pool. + * Then test spa_freeze() functionality. */ static void -ztest_init(char *pool) +ztest_init(ztest_shared_t *zs) { spa_t *spa; - int error; - nvlist_t *nvroot; + nvlist_t *nvroot, *props; + + VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0); + VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0); kernel_init(FREAD | FWRITE); /* * Create the storage pool. */ - (void) spa_destroy(pool); - ztest_shared->zs_vdev_primaries = 0; + (void) spa_destroy(zs->zs_pool); + ztest_shared->zs_vdev_next_leaf = 0; + zs->zs_splits = 0; + zs->zs_mirrors = zopt_mirrors; nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0, - 0, zopt_raidz, zopt_mirrors, 1); - error = spa_create(pool, nvroot, NULL, NULL, NULL); + 0, zopt_raidz, zs->zs_mirrors, 1); + props = make_random_props(); + VERIFY3U(0, ==, spa_create(zs->zs_pool, nvroot, props, NULL, NULL)); nvlist_free(nvroot); - if (error) - fatal(0, "spa_create() = %d", error); - error = spa_open(pool, &spa, FTAG); - if (error) - fatal(0, "spa_open() = %d", error); - + VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG)); metaslab_sz = 1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift; - - if (zopt_verbose >= 3) - show_pool_stats(spa); - spa_close(spa, FTAG); kernel_fini(); + + ztest_run_zdb(zs->zs_pool); + + ztest_freeze(zs); + + ztest_run_zdb(zs->zs_pool); } int @@ -3949,29 +5408,32 @@ main(int argc, char **argv) { int kills = 0; int iters = 0; - int i, f; ztest_shared_t *zs; + size_t shared_size; ztest_info_t *zi; char timebuf[100]; char numbuf[6]; + spa_t *spa; (void) setvbuf(stdout, NULL, _IOLBF, 0); - /* Override location of zpool.cache */ - spa_config_path = "/tmp/zpool.cache"; - ztest_random_fd = open("/dev/urandom", O_RDONLY); process_options(argc, argv); + /* Override location of zpool.cache */ + (void) asprintf((char **)&spa_config_path, "%s/zpool.cache", zopt_dir); + /* * Blow away any existing copy of zpool.cache */ if (zopt_init != 0) - (void) remove("/tmp/zpool.cache"); + (void) remove(spa_config_path); + + shared_size = sizeof (*zs) + zopt_datasets * sizeof (ztest_ds_t); zs = ztest_shared = (void *)mmap(0, - P2ROUNDUP(sizeof (ztest_shared_t), getpagesize()), + P2ROUNDUP(shared_size, getpagesize()), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0); if (zopt_verbose >= 1) { @@ -3984,46 +5446,43 @@ main(int argc, char **argv) /* * Create and initialize our storage pool. */ - for (i = 1; i <= zopt_init; i++) { + for (int i = 1; i <= zopt_init; i++) { bzero(zs, sizeof (ztest_shared_t)); if (zopt_verbose >= 3 && zopt_init != 1) (void) printf("ztest_init(), pass %d\n", i); - ztest_init(zopt_pool); + zs->zs_pool = zopt_pool; + ztest_init(zs); } - /* - * Initialize the call targets for each function. - */ - for (f = 0; f < ZTEST_FUNCS; f++) { - zi = &zs->zs_info[f]; + zs->zs_pool = zopt_pool; + zs->zs_proc_start = gethrtime(); + zs->zs_proc_stop = zs->zs_proc_start + zopt_time * NANOSEC; + for (int f = 0; f < ZTEST_FUNCS; f++) { + zi = &zs->zs_info[f]; *zi = ztest_info[f]; - - if (*zi->zi_interval == 0) - zi->zi_call_target = UINT64_MAX; + if (zs->zs_proc_start + zi->zi_interval[0] > zs->zs_proc_stop) + zi->zi_call_next = UINT64_MAX; else - zi->zi_call_target = zopt_time / *zi->zi_interval; + zi->zi_call_next = zs->zs_proc_start + + ztest_random(2 * zi->zi_interval[0] + 1); } - zs->zs_start_time = gethrtime(); - zs->zs_stop_time = zs->zs_start_time + zopt_time * NANOSEC; - /* * Run the tests in a loop. These tests include fault injection * to verify that self-healing data works, and forced crashes * to verify that we never lose on-disk consistency. */ - while (gethrtime() < zs->zs_stop_time) { + while (gethrtime() < zs->zs_proc_stop) { int status; pid_t pid; - char *tmp; /* * Initialize the workload counters for each function. */ - for (f = 0; f < ZTEST_FUNCS; f++) { + for (int f = 0; f < ZTEST_FUNCS; f++) { zi = &zs->zs_info[f]; - zi->zi_calls = 0; + zi->zi_call_count = 0; zi->zi_call_time = 0; } @@ -4039,7 +5498,7 @@ main(int argc, char **argv) struct rlimit rl = { 1024, 1024 }; (void) setrlimit(RLIMIT_NOFILE, &rl); (void) enable_extended_FILE_stdio(-1, -1); - ztest_run(zopt_pool); + ztest_run(zs); exit(0); } @@ -4072,8 +5531,8 @@ main(int argc, char **argv) if (zopt_verbose >= 1) { hrtime_t now = gethrtime(); - now = MIN(now, zs->zs_stop_time); - print_time(zs->zs_stop_time - now, timebuf); + now = MIN(now, zs->zs_proc_stop); + print_time(zs->zs_proc_stop - now, timebuf); nicenum(zs->zs_space, numbuf); (void) printf("Pass %3d, %8s, %3llu ENOSPC, " @@ -4083,7 +5542,7 @@ main(int argc, char **argv) (u_longlong_t)zs->zs_enospc_count, 100.0 * zs->zs_alloc / zs->zs_space, numbuf, - 100.0 * (now - zs->zs_start_time) / + 100.0 * (now - zs->zs_proc_start) / (zopt_time * NANOSEC), timebuf); } @@ -4093,34 +5552,39 @@ main(int argc, char **argv) "Calls", "Time", "Function"); (void) printf("%7s %9s %s\n", "-----", "----", "--------"); - for (f = 0; f < ZTEST_FUNCS; f++) { + for (int f = 0; f < ZTEST_FUNCS; f++) { Dl_info dli; zi = &zs->zs_info[f]; print_time(zi->zi_call_time, timebuf); (void) dladdr((void *)zi->zi_func, &dli); (void) printf("%7llu %9s %s\n", - (u_longlong_t)zi->zi_calls, timebuf, + (u_longlong_t)zi->zi_call_count, timebuf, dli.dli_sname); } (void) printf("\n"); } /* - * It's possible that we killed a child during a rename test, in - * which case we'll have a 'ztest_tmp' pool lying around instead - * of 'ztest'. Do a blind rename in case this happened. + * It's possible that we killed a child during a rename test, + * in which case we'll have a 'ztest_tmp' pool lying around + * instead of 'ztest'. Do a blind rename in case this happened. */ - tmp = umem_alloc(strlen(zopt_pool) + 5, UMEM_NOFAIL); - (void) strcpy(tmp, zopt_pool); - (void) strcat(tmp, "_tmp"); - kernel_init(FREAD | FWRITE); - (void) spa_rename(tmp, zopt_pool); + kernel_init(FREAD); + if (spa_open(zopt_pool, &spa, FTAG) == 0) { + spa_close(spa, FTAG); + } else { + char tmpname[MAXNAMELEN]; + kernel_fini(); + kernel_init(FREAD | FWRITE); + (void) snprintf(tmpname, sizeof (tmpname), "%s_tmp", + zopt_pool); + (void) spa_rename(tmpname, zopt_pool); + } kernel_fini(); - umem_free(tmp, strlen(tmp) + 1); - } - ztest_verify_blocks(zopt_pool); + ztest_run_zdb(zopt_pool); + } if (zopt_verbose >= 1) { (void) printf("%d killed, %d completed, %.0f%% kill rate\n", diff --git a/lib/libnvpair/include/libnvpair.h b/lib/libnvpair/include/libnvpair.h index e655e0d40..15c1c7816 100644 --- a/lib/libnvpair/include/libnvpair.h +++ b/lib/libnvpair/include/libnvpair.h @@ -19,15 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _LIBNVPAIR_H #define _LIBNVPAIR_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/nvpair.h> #include <stdlib.h> #include <stdio.h> @@ -40,6 +38,7 @@ extern "C" { void nvlist_print(FILE *, nvlist_t *); int nvpair_value_match(nvpair_t *, int, char *, char **); int nvpair_value_match_regex(nvpair_t *, int, char *, regex_t *, char **); +void dump_nvlist(nvlist_t *, int); #ifdef __cplusplus } diff --git a/lib/libnvpair/libnvpair.c b/lib/libnvpair/libnvpair.c index 0845cb08c..57915cd73 100644 --- a/lib/libnvpair/libnvpair.c +++ b/lib/libnvpair/libnvpair.c @@ -19,14 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <unistd.h> #include <strings.h> +#include <libintl.h> #include <sys/types.h> #include <sys/inttypes.h> #include "libnvpair.h" @@ -272,6 +271,156 @@ nvlist_print(FILE *fp, nvlist_t *nvl) nvlist_print_with_indent(fp, nvl, 0); } + +#define NVP(elem, type, vtype, ptype, format) { \ + vtype value; \ +\ + (void) nvpair_value_##type(elem, &value); \ + (void) printf("%*s%s: " format "\n", indent, "", \ + nvpair_name(elem), (ptype)value); \ +} + +#define NVPA(elem, type, vtype, ptype, format) { \ + uint_t i, count; \ + vtype *value; \ +\ + (void) nvpair_value_##type(elem, &value, &count); \ + for (i = 0; i < count; i++) { \ + (void) printf("%*s%s[%d]: " format "\n", indent, "", \ + nvpair_name(elem), i, (ptype)value[i]); \ + } \ +} + +/* + * Similar to nvlist_print() but handles arrays slightly differently. + */ +void +dump_nvlist(nvlist_t *list, int indent) +{ + nvpair_t *elem = NULL; + boolean_t bool_value; + nvlist_t *nvlist_value; + nvlist_t **nvlist_array_value; + uint_t i, count; + + if (list == NULL) { + return; + } + + while ((elem = nvlist_next_nvpair(list, elem)) != NULL) { + switch (nvpair_type(elem)) { + case DATA_TYPE_BOOLEAN_VALUE: + (void) nvpair_value_boolean_value(elem, &bool_value); + (void) printf("%*s%s: %s\n", indent, "", + nvpair_name(elem), bool_value ? "true" : "false"); + break; + + case DATA_TYPE_BYTE: + NVP(elem, byte, uchar_t, int, "%u"); + break; + + case DATA_TYPE_INT8: + NVP(elem, int8, int8_t, int, "%d"); + break; + + case DATA_TYPE_UINT8: + NVP(elem, uint8, uint8_t, int, "%u"); + break; + + case DATA_TYPE_INT16: + NVP(elem, int16, int16_t, int, "%d"); + break; + + case DATA_TYPE_UINT16: + NVP(elem, uint16, uint16_t, int, "%u"); + break; + + case DATA_TYPE_INT32: + NVP(elem, int32, int32_t, long, "%ld"); + break; + + case DATA_TYPE_UINT32: + NVP(elem, uint32, uint32_t, ulong_t, "%lu"); + break; + + case DATA_TYPE_INT64: + NVP(elem, int64, int64_t, longlong_t, "%lld"); + break; + + case DATA_TYPE_UINT64: + NVP(elem, uint64, uint64_t, u_longlong_t, "%llu"); + break; + + case DATA_TYPE_STRING: + NVP(elem, string, char *, char *, "'%s'"); + break; + + case DATA_TYPE_BYTE_ARRAY: + NVPA(elem, byte_array, uchar_t, int, "%u"); + break; + + case DATA_TYPE_INT8_ARRAY: + NVPA(elem, int8_array, int8_t, int, "%d"); + break; + + case DATA_TYPE_UINT8_ARRAY: + NVPA(elem, uint8_array, uint8_t, int, "%u"); + break; + + case DATA_TYPE_INT16_ARRAY: + NVPA(elem, int16_array, int16_t, int, "%d"); + break; + + case DATA_TYPE_UINT16_ARRAY: + NVPA(elem, uint16_array, uint16_t, int, "%u"); + break; + + case DATA_TYPE_INT32_ARRAY: + NVPA(elem, int32_array, int32_t, long, "%ld"); + break; + + case DATA_TYPE_UINT32_ARRAY: + NVPA(elem, uint32_array, uint32_t, ulong_t, "%lu"); + break; + + case DATA_TYPE_INT64_ARRAY: + NVPA(elem, int64_array, int64_t, longlong_t, "%lld"); + break; + + case DATA_TYPE_UINT64_ARRAY: + NVPA(elem, uint64_array, uint64_t, u_longlong_t, + "%llu"); + break; + + case DATA_TYPE_STRING_ARRAY: + NVPA(elem, string_array, char *, char *, "'%s'"); + break; + + case DATA_TYPE_NVLIST: + (void) nvpair_value_nvlist(elem, &nvlist_value); + (void) printf("%*s%s:\n", indent, "", + nvpair_name(elem)); + dump_nvlist(nvlist_value, indent + 4); + break; + + case DATA_TYPE_NVLIST_ARRAY: + (void) nvpair_value_nvlist_array(elem, + &nvlist_array_value, &count); + for (i = 0; i < count; i++) { + (void) printf("%*s%s[%u]:\n", indent, "", + nvpair_name(elem), i); + dump_nvlist(nvlist_array_value[i], indent + 4); + } + break; + + default: + (void) printf(dgettext(TEXT_DOMAIN, "bad config type " + "%d for %s\n"), nvpair_type(elem), + nvpair_name(elem)); + } + } +} + /* * Determine if string 'value' matches 'nvp' value. The 'value' string is * converted, depending on the type of 'nvp', prior to match. For numeric diff --git a/lib/libzfs/include/libzfs.h b/lib/libzfs/include/libzfs.h index f19e398f6..6f7fed62c 100644 --- a/lib/libzfs/include/libzfs.h +++ b/lib/libzfs/include/libzfs.h @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _LIBZFS_H @@ -66,7 +65,6 @@ enum { EZFS_BADSTREAM, /* bad backup stream */ EZFS_DSREADONLY, /* dataset is readonly */ EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */ - EZFS_VOLHASDATA, /* volume already contains data */ EZFS_INVALIDNAME, /* invalid dataset name */ EZFS_BADRESTORE, /* unable to restore to destination */ EZFS_BADBACKUP, /* backup failed */ @@ -85,17 +83,15 @@ enum { EZFS_UMOUNTFAILED, /* failed to unmount dataset */ EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */ EZFS_SHARENFSFAILED, /* share(1M) failed */ - EZFS_DEVLINKS, /* failed to create zvol links */ EZFS_PERM, /* permission denied */ EZFS_NOSPC, /* out of space */ + EZFS_FAULT, /* bad address */ EZFS_IO, /* I/O error */ EZFS_INTR, /* signal received */ EZFS_ISSPARE, /* device is a hot spare */ EZFS_INVALCONFIG, /* invalid vdev configuration */ EZFS_RECURSIVE, /* recursive dependency */ EZFS_NOHISTORY, /* no history object */ - EZFS_UNSHAREISCSIFAILED, /* iscsitgtd failed request to unshare */ - EZFS_SHAREISCSIFAILED, /* iscsitgtd failed request to share */ EZFS_POOLPROPS, /* couldn't retrieve pool props */ EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */ EZFS_POOL_INVALARG, /* invalid argument for this pool operation */ @@ -103,7 +99,6 @@ enum { EZFS_OPENFAILED, /* open of device failed */ EZFS_NOCAP, /* couldn't get capacity */ EZFS_LABELFAILED, /* write of label failed */ - EZFS_ISCSISVCUNAVAIL, /* iscsi service unavailable */ EZFS_BADWHO, /* invalid permission who */ EZFS_BADPERM, /* invalid permission */ EZFS_BADPERMSET, /* invalid permission set name */ @@ -119,6 +114,12 @@ enum { EZFS_UNPLAYED_LOGS, /* log device has unplayed logs */ EZFS_REFTAG_RELE, /* snapshot release: tag not found */ EZFS_REFTAG_HOLD, /* snapshot hold: tag already exists */ + EZFS_TAGTOOLONG, /* snapshot hold/rele: tag too long */ + EZFS_PIPEFAILED, /* pipe create failed */ + EZFS_THREADCREATEFAILED, /* thread create failed */ + EZFS_POSTSPLIT_ONLINE, /* onlining a disk after splitting it */ + EZFS_SCRUBBING, /* currently scrubbing */ + EZFS_NO_SCRUB, /* no active scrub */ EZFS_UNKNOWN }; @@ -213,11 +214,19 @@ extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, extern int zpool_destroy(zpool_handle_t *); extern int zpool_add(zpool_handle_t *, nvlist_t *); +typedef struct splitflags { + /* do not split, but return the config that would be split off */ + int dryrun : 1; + + /* after splitting, import the pool */ + int import : 1; +} splitflags_t; + /* * Functions to manipulate pool and vdev state */ -extern int zpool_scrub(zpool_handle_t *, pool_scrub_type_t); -extern int zpool_clear(zpool_handle_t *, const char *); +extern int zpool_scan(zpool_handle_t *, pool_scan_func_t); +extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *); extern int zpool_vdev_online(zpool_handle_t *, const char *, int, vdev_state_t *); @@ -226,9 +235,11 @@ extern int zpool_vdev_attach(zpool_handle_t *, const char *, const char *, nvlist_t *, int); extern int zpool_vdev_detach(zpool_handle_t *, const char *); extern int zpool_vdev_remove(zpool_handle_t *, const char *); +extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *, + splitflags_t); -extern int zpool_vdev_fault(zpool_handle_t *, uint64_t); -extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t); +extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t); +extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t); extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, @@ -298,6 +309,7 @@ typedef enum { extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); extern zpool_status_t zpool_import_status(nvlist_t *, char **); +extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh); /* * Statistics and configuration functions. @@ -319,23 +331,38 @@ extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, /* * Search for pools to import */ + +typedef struct importargs { + char **path; /* a list of paths to search */ + int paths; /* number of paths to search */ + char *poolname; /* name of a pool to find */ + uint64_t guid; /* guid of a pool to find */ + char *cachefile; /* cachefile to use for import */ + int can_be_active : 1; /* can the pool be active? */ + int unique : 1; /* does 'poolname' already exist? */ + int exists : 1; /* set on return if pool already exists */ +} importargs_t; + +extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *); + +/* legacy pool search routines */ extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, char *, uint64_t); -extern nvlist_t *zpool_find_import_byname(libzfs_handle_t *, int, char **, - char *); -extern nvlist_t *zpool_find_import_byguid(libzfs_handle_t *, int, char **, - uint64_t); -extern nvlist_t *zpool_find_import_activeok(libzfs_handle_t *, int, char **); /* * Miscellaneous pool functions */ struct zfs_cmd; -extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *); +extern const char *zfs_history_event_names[LOG_END]; + +extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *, + boolean_t verbose); extern int zpool_upgrade(zpool_handle_t *, uint64_t); extern int zpool_get_history(zpool_handle_t *, nvlist_t **); +extern int zpool_history_unpack(char *, uint64_t, uint64_t *, + nvlist_t ***, uint_t *); extern void zpool_set_history_str(const char *subcommand, int argc, char **argv, char *history_str); extern int zpool_stage_history(libzfs_handle_t *, const char *); @@ -343,6 +370,8 @@ extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, size_t len); extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); extern int zpool_get_physpath(zpool_handle_t *, char *, size_t); +extern void zpool_explain_recover(libzfs_handle_t *, const char *, int, + nvlist_t *); /* * Basic handle manipulations. These functions do not create or destroy the @@ -374,6 +403,8 @@ extern const char *zfs_prop_to_name(zfs_prop_t); extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, zprop_source_t *, char *, size_t, boolean_t); +extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t, + boolean_t); extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, zprop_source_t *, char *, size_t); extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, @@ -381,10 +412,11 @@ extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, char *propbuf, int proplen, boolean_t literal); extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); -extern int zfs_prop_inherit(zfs_handle_t *, const char *); +extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t); extern const char *zfs_prop_values(zfs_prop_t); extern int zfs_prop_is_string(zfs_prop_t prop); extern nvlist_t *zfs_get_user_props(zfs_handle_t *); +extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *); typedef struct zprop_list { int pl_prop; @@ -392,10 +424,11 @@ typedef struct zprop_list { struct zprop_list *pl_next; boolean_t pl_all; size_t pl_width; + size_t pl_recvd_width; boolean_t pl_fixed; } zprop_list_t; -extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **); +extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t); extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *); #define ZFS_MOUNTPOINT_NONE "none" @@ -419,13 +452,24 @@ extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, zfs_type_t); extern void zprop_free_list(zprop_list_t *); +#define ZFS_GET_NCOLS 5 + +typedef enum { + GET_COL_NONE, + GET_COL_NAME, + GET_COL_PROPERTY, + GET_COL_VALUE, + GET_COL_RECVD, + GET_COL_SOURCE +} zfs_get_column_t; + /* * Functions for printing zfs or zpool properties */ typedef struct zprop_get_cbdata { int cb_sources; - int cb_columns[4]; - int cb_colwidths[5]; + zfs_get_column_t cb_columns[ZFS_GET_NCOLS]; + int cb_colwidths[ZFS_GET_NCOLS + 1]; boolean_t cb_scripted; boolean_t cb_literal; boolean_t cb_first; @@ -434,12 +478,8 @@ typedef struct zprop_get_cbdata { } zprop_get_cbdata_t; void zprop_print_one_property(const char *, zprop_get_cbdata_t *, - const char *, const char *, zprop_source_t, const char *); - -#define GET_COL_NAME 1 -#define GET_COL_PROPERTY 2 -#define GET_COL_VALUE 3 -#define GET_COL_SOURCE 4 + const char *, const char *, zprop_source_t, const char *, + const char *); /* * Iterator functions. @@ -450,6 +490,7 @@ extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *); +extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *); /* * Functions to create and destroy datasets. @@ -463,11 +504,42 @@ extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); extern int zfs_rename(zfs_handle_t *, const char *, boolean_t); -extern int zfs_send(zfs_handle_t *, const char *, const char *, - boolean_t, boolean_t, boolean_t, boolean_t, int); + +typedef struct sendflags { + /* print informational messages (ie, -v was specified) */ + int verbose : 1; + + /* recursive send (ie, -R) */ + int replicate : 1; + + /* for incrementals, do all intermediate snapshots */ + int doall : 1; /* (ie, -I) */ + + /* if dataset is a clone, do incremental from its origin */ + int fromorigin : 1; + + /* do deduplication */ + int dedup : 1; + + /* send properties (ie, -p) */ + int props : 1; +} sendflags_t; + +typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *); + +extern int zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, + sendflags_t flags, int outfd, snapfilter_cb_t filter_func, + void *cb_arg, nvlist_t **debugnvp); + extern int zfs_promote(zfs_handle_t *); -extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t); +extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t, + boolean_t, boolean_t); +extern int zfs_hold_range(zfs_handle_t *, const char *, const char *, + const char *, boolean_t, boolean_t, snapfilter_cb_t, void *); extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t); +extern int zfs_release_range(zfs_handle_t *, const char *, const char *, + const char *, boolean_t); +extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *); typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain, uid_t rid, uint64_t space); @@ -482,6 +554,12 @@ typedef struct recvflags { /* the destination is a prefix, not the exact fs (ie, -d) */ int isprefix : 1; + /* + * Only the tail of the sent snapshot path is appended to the + * destination to determine the received snapshot name (ie, -e). + */ + int istail : 1; + /* do not actually do the recv, just check if it would work (ie, -n) */ int dryrun : 1; @@ -542,10 +620,6 @@ extern int zfs_unshareall_nfs(zfs_handle_t *); extern int zfs_unshareall_smb(zfs_handle_t *); extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); extern int zfs_unshareall(zfs_handle_t *); -extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *); -extern int zfs_share_iscsi(zfs_handle_t *); -extern int zfs_unshare_iscsi(zfs_handle_t *); -extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *); extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *, void *, void *, int, zfs_share_op_t); @@ -571,15 +645,10 @@ extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, boolean_t *); /* - * ftyp special. Read the label from a given device. + * Label manipulation. */ extern int zpool_read_label(int, nvlist_t **); - -/* - * Create and remove zvol /dev links. - */ -extern int zpool_create_zvol_links(zpool_handle_t *); -extern int zpool_remove_zvol_links(zpool_handle_t *); +extern int zpool_clear_label(int); /* is this zvol valid for use as a dump device? */ extern int zvol_check_dump_config(char *); @@ -600,6 +669,17 @@ int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *); extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); +/* + * Mappings between vdev and FRU. + */ +extern void libzfs_fru_refresh(libzfs_handle_t *); +extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *); +extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *); +extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *, + const char *); +extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *); +extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *); + #ifdef __cplusplus } #endif diff --git a/lib/libzfs/include/libzfs_impl.h b/lib/libzfs/include/libzfs_impl.h index 70a1d1cbf..89c48c1c0 100644 --- a/lib/libzfs/include/libzfs_impl.h +++ b/lib/libzfs/include/libzfs_impl.h @@ -20,7 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -30,7 +30,6 @@ #include <sys/dmu.h> #include <sys/fs/zfs.h> #include <sys/zfs_ioctl.h> -#include <sys/zfs_acl.h> #include <sys/spa.h> #include <sys/nvpair.h> @@ -38,6 +37,8 @@ #include <libzfs.h> #include <libshare.h> +#include <fm/libtopo.h> + #ifdef __cplusplus extern "C" { #endif @@ -47,6 +48,13 @@ extern "C" { #endif #define VERIFY verify +typedef struct libzfs_fru { + char *zf_device; + char *zf_fru; + struct libzfs_fru *zf_chain; + struct libzfs_fru *zf_next; +} libzfs_fru_t; + struct libzfs_handle { int libzfs_error; int libzfs_fd; @@ -65,7 +73,13 @@ struct libzfs_handle { uint_t libzfs_shareflags; boolean_t libzfs_mnttab_enable; avl_tree_t libzfs_mnttab_cache; + int libzfs_pool_iter; + topo_hdl_t *libzfs_topo_hdl; + libzfs_fru_t **libzfs_fru_hash; + libzfs_fru_t *libzfs_fru_list; + char libzfs_chassis_id[256]; }; + #define ZFSSHARE_MISS 0x01 /* Didn't find entry in cache */ struct zfs_handle { @@ -77,6 +91,7 @@ struct zfs_handle { dmu_objset_stats_t zfs_dmustats; nvlist_t *zfs_props; nvlist_t *zfs_user_props; + nvlist_t *zfs_recvd_props; boolean_t zfs_mntcheck; char *zfs_mntopts; uint8_t *zfs_props_table; @@ -112,7 +127,6 @@ typedef enum { */ typedef enum { SHARED_NOT_SHARED = 0x0, - SHARED_ISCSI = 0x1, SHARED_NFS = 0x2, SHARED_SMB = 0x4 } zfs_share_type_t; @@ -172,9 +186,6 @@ zfs_handle_t *make_dataset_handle(libzfs_handle_t *, const char *); int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **); -int zvol_create_link(libzfs_handle_t *, const char *); -int zvol_remove_link(libzfs_handle_t *, const char *); -int zpool_iter_zvol(zpool_handle_t *, int (*)(const char *, void *), void *); boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *); void namespace_clear(libzfs_handle_t *); @@ -189,6 +200,9 @@ extern int zfs_parse_options(char *, zfs_share_proto_t); extern int zfs_unshare_proto(zfs_handle_t *, const char *, zfs_share_proto_t *); + +extern void libzfs_fru_clear(libzfs_handle_t *, boolean_t); + #ifdef __cplusplus } #endif diff --git a/lib/libzfs/libzfs_changelist.c b/lib/libzfs/libzfs_changelist.c index ff438b3d7..4328d38a2 100644 --- a/lib/libzfs/libzfs_changelist.c +++ b/lib/libzfs/libzfs_changelist.c @@ -20,7 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. * * Portions Copyright 2007 Ramprakash Jelari @@ -116,32 +116,7 @@ changelist_prefix(prop_changelist_t *clp) if (getzoneid() == GLOBAL_ZONEID && cn->cn_zoned) continue; - if (ZFS_IS_VOLUME(cn->cn_handle)) { - switch (clp->cl_realprop) { - case ZFS_PROP_NAME: - /* - * If this was a rename, unshare the zvol, and - * remove the /dev/zvol links. - */ - (void) zfs_unshare_iscsi(cn->cn_handle); - - if (zvol_remove_link(cn->cn_handle->zfs_hdl, - cn->cn_handle->zfs_name) != 0) { - ret = -1; - cn->cn_needpost = B_FALSE; - (void) zfs_share_iscsi(cn->cn_handle); - } - break; - - case ZFS_PROP_VOLSIZE: - /* - * If this was a change to the volume size, we - * need to unshare and reshare the volume. - */ - (void) zfs_unshare_iscsi(cn->cn_handle); - break; - } - } else { + if (!ZFS_IS_VOLUME(cn->cn_handle)) { /* * Do the property specific processing. */ @@ -234,32 +209,8 @@ changelist_postfix(prop_changelist_t *clp) zfs_refresh_properties(cn->cn_handle); - if (ZFS_IS_VOLUME(cn->cn_handle)) { - /* - * If we're doing a rename, recreate the /dev/zvol - * links. - */ - if (clp->cl_realprop == ZFS_PROP_NAME && - zvol_create_link(cn->cn_handle->zfs_hdl, - cn->cn_handle->zfs_name) != 0) { - errors++; - } else if (cn->cn_shared || - clp->cl_prop == ZFS_PROP_SHAREISCSI) { - if (zfs_prop_get(cn->cn_handle, - ZFS_PROP_SHAREISCSI, shareopts, - sizeof (shareopts), NULL, NULL, 0, - B_FALSE) == 0 && - strcmp(shareopts, "off") == 0) { - errors += - zfs_unshare_iscsi(cn->cn_handle); - } else { - errors += - zfs_share_iscsi(cn->cn_handle); - } - } - + if (ZFS_IS_VOLUME(cn->cn_handle)) continue; - } /* * Remount if previously mounted or mountpoint was legacy, @@ -658,8 +609,7 @@ changelist_gather(zfs_handle_t *zhp, zfs_prop_t prop, int gather_flags, if (clp->cl_prop != ZFS_PROP_MOUNTPOINT && clp->cl_prop != ZFS_PROP_SHARENFS && - clp->cl_prop != ZFS_PROP_SHARESMB && - clp->cl_prop != ZFS_PROP_SHAREISCSI) + clp->cl_prop != ZFS_PROP_SHARESMB) return (clp); /* diff --git a/lib/libzfs/libzfs_config.c b/lib/libzfs/libzfs_config.c index 94640d1b1..dc27238c9 100644 --- a/lib/libzfs/libzfs_config.c +++ b/lib/libzfs/libzfs_config.c @@ -19,12 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - /* * The pool configuration repository is stored in /etc/zfs/zpool.cache as a * single packed nvlist. While it would be nice to just read in this @@ -313,21 +311,33 @@ zpool_iter(libzfs_handle_t *hdl, zpool_iter_f func, void *data) zpool_handle_t *zhp; int ret; - if (namespace_reload(hdl) != 0) + /* + * If someone makes a recursive call to zpool_iter(), we want to avoid + * refreshing the namespace because that will invalidate the parent + * context. We allow recursive calls, but simply re-use the same + * namespace AVL tree. + */ + if (!hdl->libzfs_pool_iter && namespace_reload(hdl) != 0) return (-1); + hdl->libzfs_pool_iter++; for (cn = uu_avl_first(hdl->libzfs_ns_avl); cn != NULL; cn = uu_avl_next(hdl->libzfs_ns_avl, cn)) { - if (zpool_open_silent(hdl, cn->cn_name, &zhp) != 0) + if (zpool_open_silent(hdl, cn->cn_name, &zhp) != 0) { + hdl->libzfs_pool_iter--; return (-1); + } if (zhp == NULL) continue; - if ((ret = func(zhp, data)) != 0) + if ((ret = func(zhp, data)) != 0) { + hdl->libzfs_pool_iter--; return (ret); + } } + hdl->libzfs_pool_iter--; return (0); } diff --git a/lib/libzfs/libzfs_dataset.c b/lib/libzfs/libzfs_dataset.c index ab9ba6b80..a3f5a7d0f 100644 --- a/lib/libzfs/libzfs_dataset.c +++ b/lib/libzfs/libzfs_dataset.c @@ -20,14 +20,12 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#include <assert.h> #include <ctype.h> #include <errno.h> -#include <libdevinfo.h> #include <libintl.h> #include <math.h> #include <stdio.h> @@ -39,7 +37,6 @@ #include <fcntl.h> #include <sys/mntent.h> #include <sys/mount.h> -#include <sys/avl.h> #include <priv.h> #include <pwd.h> #include <grp.h> @@ -49,6 +46,7 @@ #include <aclutils.h> #include <directory.h> +#include <sys/dnode.h> #include <sys/spa.h> #include <sys/zap.h> #include <libzfs.h> @@ -58,7 +56,6 @@ #include "libzfs_impl.h" #include "zfs_deleg.h" -static int zvol_create_link_common(libzfs_handle_t *, const char *, int); static int userquota_propname_decode(const char *propname, boolean_t zoned, zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); @@ -340,6 +337,44 @@ get_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) return (0); } +/* + * Utility function to get the received properties of the given object. + */ +static int +get_recvd_props_ioctl(zfs_handle_t *zhp) +{ + libzfs_handle_t *hdl = zhp->zfs_hdl; + nvlist_t *recvdprops; + zfs_cmd_t zc = { 0 }; + int err; + + if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) + return (-1); + + (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); + + while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { + if (errno == ENOMEM) { + if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { + return (-1); + } + } else { + zcmd_free_nvlists(&zc); + return (-1); + } + } + + err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); + zcmd_free_nvlists(&zc); + if (err != 0) + return (-1); + + nvlist_free(zhp->zfs_recvd_props); + zhp->zfs_recvd_props = recvdprops; + + return (0); +} + static int put_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) { @@ -401,70 +436,8 @@ zfs_refresh_properties(zfs_handle_t *zhp) static int make_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) { - char *logstr; - libzfs_handle_t *hdl = zhp->zfs_hdl; - - /* - * Preserve history log string. - * any changes performed here will be - * logged as an internal event. - */ - logstr = zhp->zfs_hdl->libzfs_log_str; - zhp->zfs_hdl->libzfs_log_str = NULL; - -top: - if (put_stats_zhdl(zhp, zc) != 0) { - zhp->zfs_hdl->libzfs_log_str = logstr; + if (put_stats_zhdl(zhp, zc) != 0) return (-1); - } - - - if (zhp->zfs_dmustats.dds_inconsistent) { - zfs_cmd_t zc2 = { 0 }; - - /* - * If it is dds_inconsistent, then we've caught it in - * the middle of a 'zfs receive' or 'zfs destroy', and - * it is inconsistent from the ZPL's point of view, so - * can't be mounted. However, it could also be that we - * have crashed in the middle of one of those - * operations, in which case we need to get rid of the - * inconsistent state. We do that by either rolling - * back to the previous snapshot (which will fail if - * there is none), or destroying the filesystem. Note - * that if we are still in the middle of an active - * 'receive' or 'destroy', then the rollback and destroy - * will fail with EBUSY and we will drive on as usual. - */ - - (void) strlcpy(zc2.zc_name, zhp->zfs_name, - sizeof (zc2.zc_name)); - - if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) { - (void) zvol_remove_link(hdl, zhp->zfs_name); - zc2.zc_objset_type = DMU_OST_ZVOL; - } else { - zc2.zc_objset_type = DMU_OST_ZFS; - } - - /* - * If we can successfully destroy it, pretend that it - * never existed. - */ - if (ioctl(hdl->libzfs_fd, ZFS_IOC_DESTROY, &zc2) == 0) { - zhp->zfs_hdl->libzfs_log_str = logstr; - errno = ENOENT; - return (-1); - } - /* If we can successfully roll it back, reset the stats */ - if (ioctl(hdl->libzfs_fd, ZFS_IOC_ROLLBACK, &zc2) == 0) { - if (get_stats_ioctl(zhp, zc) != 0) { - zhp->zfs_hdl->libzfs_log_str = logstr; - return (-1); - } - goto top; - } - } /* * We've managed to open the dataset and gather statistics. Determine @@ -486,8 +459,9 @@ top: else abort(); /* we should never see any other types */ - zhp->zfs_hdl->libzfs_log_str = logstr; - zhp->zpool_hdl = zpool_handle(zhp); + if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) + return (-1); + return (0); } @@ -589,6 +563,7 @@ zfs_close(zfs_handle_t *zhp) free(zhp->zfs_mntopts); nvlist_free(zhp->zfs_props); nvlist_free(zhp->zfs_user_props); + nvlist_free(zhp->zfs_recvd_props); free(zhp); } @@ -882,9 +857,14 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, goto error; } + /* + * Encode the prop name as + * userquota@<hex-rid>-domain, to make it easy + * for the kernel to decode. + */ (void) snprintf(newpropname, sizeof (newpropname), - "%s%s", zfs_userquota_prop_prefixes[uqtype], - domain); + "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], + (longlong_t)rid, domain); valary[0] = uqtype; valary[1] = rid; valary[2] = intval; @@ -960,19 +940,60 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, } break; - case ZFS_PROP_SHAREISCSI: - if (strcmp(strval, "off") != 0 && - strcmp(strval, "on") != 0 && - strcmp(strval, "type=disk") != 0) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'%s' must be 'on', 'off', or 'type=disk'"), - propname); - (void) zfs_error(hdl, EZFS_BADPROP, errbuf); - goto error; + case ZFS_PROP_MLSLABEL: + { + /* + * Verify the mlslabel string and convert to + * internal hex label string. + */ + + m_label_t *new_sl; + char *hex = NULL; /* internal label string */ + + /* Default value is already OK. */ + if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) + break; + + /* Verify the label can be converted to binary form */ + if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || + (str_to_label(strval, &new_sl, MAC_LABEL, + L_NO_CORRECTION, NULL) == -1)) { + goto badlabel; } + /* Now translate to hex internal label string */ + if (label_to_str(new_sl, &hex, M_INTERNAL, + DEF_NAMES) != 0) { + if (hex) + free(hex); + goto badlabel; + } + m_label_free(new_sl); + + /* If string is already in internal form, we're done. */ + if (strcmp(strval, hex) == 0) { + free(hex); + break; + } + + /* Replace the label string with the internal form. */ + (void) nvlist_remove(ret, zfs_prop_to_name(prop), + DATA_TYPE_STRING); + verify(nvlist_add_string(ret, zfs_prop_to_name(prop), + hex) == 0); + free(hex); + break; +badlabel: + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "invalid mlslabel '%s'"), strval); + (void) zfs_error(hdl, EZFS_BADPROP, errbuf); + m_label_free(new_sl); /* OK if null */ + goto error; + + } + case ZFS_PROP_MOUNTPOINT: { namecheck_err_t why; @@ -1226,6 +1247,90 @@ error: return (NULL); } +void +zfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, + char *errbuf) +{ + switch (err) { + + case ENOSPC: + /* + * For quotas and reservations, ENOSPC indicates + * something different; setting a quota or reservation + * doesn't use any disk space. + */ + switch (prop) { + case ZFS_PROP_QUOTA: + case ZFS_PROP_REFQUOTA: + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "size is less than current used or " + "reserved space")); + (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); + break; + + case ZFS_PROP_RESERVATION: + case ZFS_PROP_REFRESERVATION: + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "size is greater than available space")); + (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); + break; + + default: + (void) zfs_standard_error(hdl, err, errbuf); + break; + } + break; + + case EBUSY: + (void) zfs_standard_error(hdl, EBUSY, errbuf); + break; + + case EROFS: + (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); + break; + + case ENOTSUP: + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "pool and or dataset must be upgraded to set this " + "property or value")); + (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); + break; + + case ERANGE: + if (prop == ZFS_PROP_COMPRESSION) { + (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "property setting is not allowed on " + "bootable datasets")); + (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); + } else { + (void) zfs_standard_error(hdl, err, errbuf); + } + break; + + case EINVAL: + if (prop == ZPROP_INVAL) { + (void) zfs_error(hdl, EZFS_BADPROP, errbuf); + } else { + (void) zfs_standard_error(hdl, err, errbuf); + } + break; + + case EOVERFLOW: + /* + * This platform can't address a volume this big. + */ +#ifdef _ILP32 + if (prop == ZFS_PROP_VOLSIZE) { + (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); + break; + } +#endif + /* FALLTHROUGH */ + default: + (void) zfs_standard_error(hdl, err, errbuf); + } +} + /* * Given a property name and value, set the property for the given dataset. */ @@ -1294,79 +1399,7 @@ zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); if (ret != 0) { - switch (errno) { - - case ENOSPC: - /* - * For quotas and reservations, ENOSPC indicates - * something different; setting a quota or reservation - * doesn't use any disk space. - */ - switch (prop) { - case ZFS_PROP_QUOTA: - case ZFS_PROP_REFQUOTA: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "size is less than current used or " - "reserved space")); - (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); - break; - - case ZFS_PROP_RESERVATION: - case ZFS_PROP_REFRESERVATION: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "size is greater than available space")); - (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); - break; - - default: - (void) zfs_standard_error(hdl, errno, errbuf); - break; - } - break; - - case EBUSY: - if (prop == ZFS_PROP_VOLBLOCKSIZE) - (void) zfs_error(hdl, EZFS_VOLHASDATA, errbuf); - else - (void) zfs_standard_error(hdl, EBUSY, errbuf); - break; - - case EROFS: - (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); - break; - - case ENOTSUP: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "pool and or dataset must be upgraded to set this " - "property or value")); - (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); - break; - - case ERANGE: - if (prop == ZFS_PROP_COMPRESSION) { - (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "property setting is not allowed on " - "bootable datasets")); - (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); - } else { - (void) zfs_standard_error(hdl, errno, errbuf); - } - break; - - case EOVERFLOW: - /* - * This platform can't address a volume this big. - */ -#ifdef _ILP32 - if (prop == ZFS_PROP_VOLSIZE) { - (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); - break; - } -#endif - /* FALLTHROUGH */ - default: - (void) zfs_standard_error(hdl, errno, errbuf); - } + zfs_setprop_error(hdl, prop, errno, errbuf); } else { if (do_prefix) ret = changelist_postfix(cl); @@ -1388,10 +1421,11 @@ error: } /* - * Given a property, inherit the value from the parent dataset. + * Given a property, inherit the value from the parent dataset, or if received + * is TRUE, revert to the received value, if any. */ int -zfs_prop_inherit(zfs_handle_t *zhp, const char *propname) +zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) { zfs_cmd_t zc = { 0 }; int ret; @@ -1403,6 +1437,7 @@ zfs_prop_inherit(zfs_handle_t *zhp, const char *propname) (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot inherit %s for '%s'"), propname, zhp->zfs_name); + zc.zc_cookie = received; if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { /* * For user properties, the amount of work we have to do is very @@ -1429,7 +1464,7 @@ zfs_prop_inherit(zfs_handle_t *zhp, const char *propname) if (zfs_prop_readonly(prop)) return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); - if (!zfs_prop_inheritable(prop)) + if (!zfs_prop_inheritable(prop) && !received) return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); /* @@ -1534,6 +1569,26 @@ getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) return (value); } +static boolean_t +zfs_is_recvd_props_mode(zfs_handle_t *zhp) +{ + return (zhp->zfs_props == zhp->zfs_recvd_props); +} + +static void +zfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) +{ + *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; + zhp->zfs_props = zhp->zfs_recvd_props; +} + +static void +zfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) +{ + zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; + *cookie = 0; +} + /* * Internal function for getting a numeric property. Both zfs_prop_get() and * zfs_prop_get_int() are built using this interface. @@ -1552,6 +1607,7 @@ get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, struct mnttab mnt; char *mntopt_on = NULL; char *mntopt_off = NULL; + boolean_t received = zfs_is_recvd_props_mode(zhp); *source = NULL; @@ -1627,6 +1683,9 @@ get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, case ZFS_PROP_NBMAND: *val = getprop_uint64(zhp, prop, source); + if (received) + break; + if (hasmntopt(&mnt, mntopt_on) && !*val) { *val = B_TRUE; if (src) @@ -1639,22 +1698,17 @@ get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, break; case ZFS_PROP_CANMOUNT: - *val = getprop_uint64(zhp, prop, source); - if (*val != ZFS_CANMOUNT_ON) - *source = zhp->zfs_name; - else - *source = ""; /* default */ - break; - + case ZFS_PROP_VOLSIZE: case ZFS_PROP_QUOTA: case ZFS_PROP_REFQUOTA: case ZFS_PROP_RESERVATION: case ZFS_PROP_REFRESERVATION: *val = getprop_uint64(zhp, prop, source); - if (*val == 0) - *source = ""; /* default */ - else + + if (*source == NULL) { + /* not default, must be local */ *source = zhp->zfs_name; + } break; case ZFS_PROP_MOUNTED: @@ -1696,11 +1750,11 @@ get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, /* * If we tried to use a default value for a * readonly property, it means that it was not - * present; return an error. + * present. */ if (zfs_prop_readonly(prop) && - *source && (*source)[0] == '\0') { - return (-1); + *source != NULL && (*source)[0] == '\0') { + *source = NULL; } break; @@ -1730,6 +1784,8 @@ get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, *srctype = ZPROP_SRC_NONE; } else if (source[0] == '\0') { *srctype = ZPROP_SRC_DEFAULT; + } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { + *srctype = ZPROP_SRC_RECEIVED; } else { if (strcmp(source, zhp->zfs_name) == 0) { *srctype = ZPROP_SRC_LOCAL; @@ -1741,6 +1797,43 @@ get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, } +int +zfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, + size_t proplen, boolean_t literal) +{ + zfs_prop_t prop; + int err = 0; + + if (zhp->zfs_recvd_props == NULL) + if (get_recvd_props_ioctl(zhp) != 0) + return (-1); + + prop = zfs_name_to_prop(propname); + + if (prop != ZPROP_INVAL) { + uint64_t cookie; + if (!nvlist_exists(zhp->zfs_recvd_props, propname)) + return (-1); + zfs_set_recvd_props_mode(zhp, &cookie); + err = zfs_prop_get(zhp, prop, propbuf, proplen, + NULL, NULL, 0, literal); + zfs_unset_recvd_props_mode(zhp, &cookie); + } else if (zfs_prop_userquota(propname)) { + return (-1); + } else { + nvlist_t *propval; + char *recvdval; + if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, + propname, &propval) != 0) + return (-1); + verify(nvlist_lookup_string(propval, ZPROP_VALUE, + &recvdval) == 0); + (void) strlcpy(propbuf, recvdval, proplen); + } + + return (err == 0 ? 0 : -1); +} + /* * Retrieve a property from the given object. If 'literal' is specified, then * numbers are left as exact values. Otherwise, numbers are converted to a @@ -1756,6 +1849,7 @@ zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, uint64_t val; char *str; const char *strval; + boolean_t received = zfs_is_recvd_props_mode(zhp); /* * Check to see if this property applies to our object @@ -1763,6 +1857,9 @@ zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) return (-1); + if (received && zfs_prop_readonly(prop)) + return (-1); + if (src) *src = ZPROP_SRC_NONE; @@ -1802,10 +1899,22 @@ zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, if (str[0] == '/') { char buf[MAXPATHLEN]; char *root = buf; - const char *relpath = zhp->zfs_name + strlen(source); + const char *relpath; - if (relpath[0] == '/') - relpath++; + /* + * If we inherit the mountpoint, even from a dataset + * with a received value, the source will be the path of + * the dataset we inherit from. If source is + * ZPROP_SOURCE_VAL_RECVD, the received value is not + * inherited. + */ + if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { + relpath = ""; + } else { + relpath = zhp->zfs_name + strlen(source); + if (relpath[0] == '/') + relpath++; + } if ((zpool_get_prop(zhp->zpool_hdl, ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || @@ -1884,8 +1993,9 @@ zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, case ZFS_PROP_COMPRESSRATIO: if (get_numeric_property(zhp, prop, src, &source, &val) != 0) return (-1); - (void) snprintf(propbuf, proplen, "%lld.%02lldx", (longlong_t) - val / 100, (longlong_t)val % 100); + (void) snprintf(propbuf, proplen, "%llu.%02llux", + (u_longlong_t)(val / 100), + (u_longlong_t)(val % 100)); break; case ZFS_PROP_TYPE: @@ -1930,6 +2040,44 @@ zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, (void) strlcpy(propbuf, zhp->zfs_name, proplen); break; + case ZFS_PROP_MLSLABEL: + { + m_label_t *new_sl = NULL; + char *ascii = NULL; /* human readable label */ + + (void) strlcpy(propbuf, + getprop_string(zhp, prop, &source), proplen); + + if (literal || (strcasecmp(propbuf, + ZFS_MLSLABEL_DEFAULT) == 0)) + break; + + /* + * Try to translate the internal hex string to + * human-readable output. If there are any + * problems just use the hex string. + */ + + if (str_to_label(propbuf, &new_sl, MAC_LABEL, + L_NO_CORRECTION, NULL) == -1) { + m_label_free(new_sl); + break; + } + + if (label_to_str(new_sl, &ascii, M_LABEL, + DEF_NAMES) != 0) { + if (ascii) + free(ascii); + m_label_free(new_sl); + break; + } + m_label_free(new_sl); + + (void) strlcpy(propbuf, ascii, proplen); + free(ascii); + } + break; + default: switch (zfs_prop_get_type(prop)) { case PROP_TYPE_NUMBER: @@ -2371,6 +2519,27 @@ zfs_iter_children(zfs_handle_t *zhp, zfs_iter_f func, void *data) } /* + * Is one dataset name a child dataset of another? + * + * Needs to handle these cases: + * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" + * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" + * Descendant? No. No. No. Yes. + */ +static boolean_t +is_descendant(const char *ds1, const char *ds2) +{ + size_t d1len = strlen(ds1); + + /* ds2 can't be a descendant if it's smaller */ + if (strlen(ds2) < d1len) + return (B_FALSE); + + /* otherwise, compare strings and verify that there's a '/' char */ + return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); +} + +/* * Given a complete name, return just the portion that refers to the parent. * Can return NULL if this is a pool. */ @@ -2405,6 +2574,7 @@ check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, char *slash; zfs_handle_t *zhp; char errbuf[1024]; + uint64_t is_zoned; (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); @@ -2447,9 +2617,12 @@ check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, return (zfs_standard_error(hdl, errno, errbuf)); } - *zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); + is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); + if (zoned != NULL) + *zoned = is_zoned; + /* we are in a non-global zone, but parent is in the global zone */ - if (getzoneid() != GLOBAL_ZONEID && !(*zoned)) { + if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { (void) zfs_standard_error(hdl, EPERM, errbuf); zfs_close(zhp); return (-1); @@ -2581,11 +2754,10 @@ int zfs_create_ancestors(libzfs_handle_t *hdl, const char *path) { int prefix; - uint64_t zoned; char *path_copy; int rc; - if (check_parents(hdl, path, &zoned, B_TRUE, &prefix) != 0) + if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) return (-1); if ((path_copy = strdup(path)) != NULL) { @@ -2699,18 +2871,6 @@ zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, /* create the dataset */ ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc); - if (ret == 0 && type == ZFS_TYPE_VOLUME) { - ret = zvol_create_link(hdl, path); - if (ret) { - (void) zfs_standard_error(hdl, errno, - dgettext(TEXT_DOMAIN, - "Volume successfully created, but device links " - "were not created")); - zcmd_free_nvlists(&zc); - return (-1); - } - } - zcmd_free_nvlists(&zc); /* check for failure */ @@ -2773,18 +2933,6 @@ zfs_destroy(zfs_handle_t *zhp, boolean_t defer) (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); if (ZFS_IS_VOLUME(zhp)) { - /* - * If user doesn't have permissions to unshare volume, then - * abort the request. This would only happen for a - * non-privileged user. - */ - if (zfs_unshare_iscsi(zhp) != 0) { - return (-1); - } - - if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0) - return (-1); - zc.zc_objset_type = DMU_OST_ZVOL; } else { zc.zc_objset_type = DMU_OST_ZFS; @@ -2809,13 +2957,13 @@ struct destroydata { }; static int -zfs_remove_link_cb(zfs_handle_t *zhp, void *arg) +zfs_check_snap_cb(zfs_handle_t *zhp, void *arg) { struct destroydata *dd = arg; zfs_handle_t *szhp; char name[ZFS_MAXNAMELEN]; boolean_t closezhp = dd->closezhp; - int rv; + int rv = 0; (void) strlcpy(name, zhp->zfs_name, sizeof (name)); (void) strlcat(name, "@", sizeof (name)); @@ -2827,17 +2975,9 @@ zfs_remove_link_cb(zfs_handle_t *zhp, void *arg) zfs_close(szhp); } - if (zhp->zfs_type == ZFS_TYPE_VOLUME) { - (void) zvol_remove_link(zhp->zfs_hdl, name); - /* - * NB: this is simply a best-effort. We don't want to - * return an error, because then we wouldn't visit all - * the volumes. - */ - } - dd->closezhp = B_TRUE; - rv = zfs_iter_filesystems(zhp, zfs_remove_link_cb, arg); + if (!dd->gotone) + rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, arg); if (closezhp) zfs_close(zhp); return (rv); @@ -2854,7 +2994,7 @@ zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) struct destroydata dd = { 0 }; dd.snapname = snapname; - (void) zfs_remove_link_cb(zhp, &dd); + (void) zfs_check_snap_cb(zhp, &dd); if (!dd.gotone) { return (zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, @@ -2972,70 +3112,11 @@ zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) return (zfs_standard_error(zhp->zfs_hdl, errno, errbuf)); } - } else if (ZFS_IS_VOLUME(zhp)) { - ret = zvol_create_link(zhp->zfs_hdl, target); } return (ret); } -typedef struct promote_data { - char cb_mountpoint[MAXPATHLEN]; - const char *cb_target; - const char *cb_errbuf; - uint64_t cb_pivot_txg; -} promote_data_t; - -static int -promote_snap_cb(zfs_handle_t *zhp, void *data) -{ - promote_data_t *pd = data; - zfs_handle_t *szhp; - char snapname[MAXPATHLEN]; - int rv = 0; - - /* We don't care about snapshots after the pivot point */ - if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > pd->cb_pivot_txg) { - zfs_close(zhp); - return (0); - } - - /* Remove the device link if it's a zvol. */ - if (ZFS_IS_VOLUME(zhp)) - (void) zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name); - - /* Check for conflicting names */ - (void) strlcpy(snapname, pd->cb_target, sizeof (snapname)); - (void) strlcat(snapname, strchr(zhp->zfs_name, '@'), sizeof (snapname)); - szhp = make_dataset_handle(zhp->zfs_hdl, snapname); - if (szhp != NULL) { - zfs_close(szhp); - zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, - "snapshot name '%s' from origin \n" - "conflicts with '%s' from target"), - zhp->zfs_name, snapname); - rv = zfs_error(zhp->zfs_hdl, EZFS_EXISTS, pd->cb_errbuf); - } - zfs_close(zhp); - return (rv); -} - -static int -promote_snap_done_cb(zfs_handle_t *zhp, void *data) -{ - promote_data_t *pd = data; - - /* We don't care about snapshots after the pivot point */ - if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) <= pd->cb_pivot_txg) { - /* Create the device link if it's a zvol. */ - if (ZFS_IS_VOLUME(zhp)) - (void) zvol_create_link(zhp->zfs_hdl, zhp->zfs_name); - } - - zfs_close(zhp); - return (0); -} - /* * Promotes the given clone fs to be the clone parent. */ @@ -3045,10 +3126,7 @@ zfs_promote(zfs_handle_t *zhp) libzfs_handle_t *hdl = zhp->zfs_hdl; zfs_cmd_t zc = { 0 }; char parent[MAXPATHLEN]; - char *cp; int ret; - zfs_handle_t *pzhp; - promote_data_t pd; char errbuf[1024]; (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, @@ -3066,29 +3144,7 @@ zfs_promote(zfs_handle_t *zhp) "not a cloned filesystem")); return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); } - cp = strchr(parent, '@'); - *cp = '\0'; - - /* Walk the snapshots we will be moving */ - pzhp = zfs_open(hdl, zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT); - if (pzhp == NULL) - return (-1); - pd.cb_pivot_txg = zfs_prop_get_int(pzhp, ZFS_PROP_CREATETXG); - zfs_close(pzhp); - pd.cb_target = zhp->zfs_name; - pd.cb_errbuf = errbuf; - pzhp = zfs_open(hdl, parent, ZFS_TYPE_DATASET); - if (pzhp == NULL) - return (-1); - (void) zfs_prop_get(pzhp, ZFS_PROP_MOUNTPOINT, pd.cb_mountpoint, - sizeof (pd.cb_mountpoint), NULL, NULL, 0, FALSE); - ret = zfs_iter_snapshots(pzhp, promote_snap_cb, &pd); - if (ret != 0) { - zfs_close(pzhp); - return (-1); - } - /* issue the ioctl */ (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, sizeof (zc.zc_value)); (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); @@ -3097,62 +3153,18 @@ zfs_promote(zfs_handle_t *zhp) if (ret != 0) { int save_errno = errno; - (void) zfs_iter_snapshots(pzhp, promote_snap_done_cb, &pd); - zfs_close(pzhp); - switch (save_errno) { case EEXIST: - /* - * There is a conflicting snapshot name. We - * should have caught this above, but they could - * have renamed something in the mean time. - */ + /* There is a conflicting snapshot name. */ zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "conflicting snapshot name from parent '%s'"), - parent); + "conflicting snapshot '%s' from parent '%s'"), + zc.zc_string, parent); return (zfs_error(hdl, EZFS_EXISTS, errbuf)); default: return (zfs_standard_error(hdl, save_errno, errbuf)); } - } else { - (void) zfs_iter_snapshots(zhp, promote_snap_done_cb, &pd); - } - - zfs_close(pzhp); - return (ret); -} - -struct createdata { - const char *cd_snapname; - int cd_ifexists; -}; - -static int -zfs_create_link_cb(zfs_handle_t *zhp, void *arg) -{ - struct createdata *cd = arg; - int ret; - - if (zhp->zfs_type == ZFS_TYPE_VOLUME) { - char name[MAXPATHLEN]; - - (void) strlcpy(name, zhp->zfs_name, sizeof (name)); - (void) strlcat(name, "@", sizeof (name)); - (void) strlcat(name, cd->cd_snapname, sizeof (name)); - (void) zvol_create_link_common(zhp->zfs_hdl, name, - cd->cd_ifexists); - /* - * NB: this is simply a best-effort. We don't want to - * return an error, because then we wouldn't visit all - * the volumes. - */ } - - ret = zfs_iter_filesystems(zhp, zfs_create_link_cb, cd); - - zfs_close(zhp); - return (ret); } @@ -3216,31 +3228,11 @@ zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, * if it was recursive, the one that actually failed will be in * zc.zc_name. */ - if (ret != 0) + if (ret != 0) { (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value); - - if (ret == 0 && recursive) { - struct createdata cd; - - cd.cd_snapname = delim + 1; - cd.cd_ifexists = B_FALSE; - (void) zfs_iter_filesystems(zhp, zfs_create_link_cb, &cd); - } - if (ret == 0 && zhp->zfs_type == ZFS_TYPE_VOLUME) { - ret = zvol_create_link(zhp->zfs_hdl, path); - if (ret != 0) { - (void) zfs_standard_error(hdl, errno, - dgettext(TEXT_DOMAIN, - "Volume successfully snapshotted, but device links " - "were not created")); - zfs_close(zhp); - return (-1); - } - } - - if (ret != 0) (void) zfs_standard_error(hdl, errno, errbuf); + } zfs_close(zhp); @@ -3343,8 +3335,6 @@ zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) */ if (zhp->zfs_type == ZFS_TYPE_VOLUME) { - if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0) - return (-1); if (zfs_which_resv_prop(zhp, &resv_prop) < 0) return (-1); old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); @@ -3382,10 +3372,6 @@ zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) */ if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { - if (err = zvol_create_link(zhp->zfs_hdl, zhp->zfs_name)) { - zfs_close(zhp); - return (err); - } if (restore_resv) { new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); if (old_volsize != new_volsize) @@ -3500,14 +3486,11 @@ zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); - uint64_t unused; /* validate parents */ - if (check_parents(hdl, target, &unused, B_FALSE, NULL) != 0) + if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) return (-1); - (void) parent_name(target, parent, sizeof (parent)); - /* make sure we're in the same pool */ verify((delim = strchr(target, '/')) != NULL); if (strncmp(zhp->zfs_name, target, delim - target) != 0 || @@ -3518,10 +3501,9 @@ zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) } /* new name cannot be a child of the current dataset name */ - if (strncmp(parent, zhp->zfs_name, - strlen(zhp->zfs_name)) == 0) { + if (is_descendant(zhp->zfs_name, target)) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "New dataset name cannot be a descendent of " + "New dataset name cannot be a descendant of " "current dataset name")); return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); } @@ -3538,7 +3520,6 @@ zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) } if (recursive) { - struct destroydata dd; parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); if (parentname == NULL) { @@ -3553,15 +3534,6 @@ zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) goto error; } - dd.snapname = delim + 1; - dd.gotone = B_FALSE; - dd.closezhp = B_TRUE; - - /* We remove any zvol links prior to renaming them */ - ret = zfs_iter_filesystems(zhrp, zfs_remove_link_cb, &dd); - if (ret) { - goto error; - } } else { if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 0, 0)) == NULL) return (-1); @@ -3609,27 +3581,10 @@ zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) * On failure, we still want to remount any filesystems that * were previously mounted, so we don't alter the system state. */ - if (recursive) { - struct createdata cd; - - /* only create links for datasets that had existed */ - cd.cd_snapname = delim + 1; - cd.cd_ifexists = B_TRUE; - (void) zfs_iter_filesystems(zhrp, zfs_create_link_cb, - &cd); - } else { + if (!recursive) (void) changelist_postfix(cl); - } } else { - if (recursive) { - struct createdata cd; - - /* only create links for datasets that had existed */ - cd.cd_snapname = strchr(target, '@') + 1; - cd.cd_ifexists = B_TRUE; - ret = zfs_iter_filesystems(zhrp, zfs_create_link_cb, - &cd); - } else { + if (!recursive) { changelist_rename(cl, zfs_get_name(zhp), target); ret = changelist_postfix(cl); } @@ -3648,143 +3603,19 @@ error: return (ret); } -/* - * Given a zvol dataset, issue the ioctl to create the appropriate minor node, - * poke devfsadm to create the /dev link, and then wait for the link to appear. - */ -int -zvol_create_link(libzfs_handle_t *hdl, const char *dataset) -{ - return (zvol_create_link_common(hdl, dataset, B_FALSE)); -} - -static int -zvol_create_link_common(libzfs_handle_t *hdl, const char *dataset, int ifexists) -{ - zfs_cmd_t zc = { 0 }; - di_devlink_handle_t dhdl; - priv_set_t *priv_effective; - int privileged; - - (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); - - /* - * Issue the appropriate ioctl. - */ - if (ioctl(hdl->libzfs_fd, ZFS_IOC_CREATE_MINOR, &zc) != 0) { - switch (errno) { - case EEXIST: - /* - * Silently ignore the case where the link already - * exists. This allows 'zfs volinit' to be run multiple - * times without errors. - */ - return (0); - - case ENOENT: - /* - * Dataset does not exist in the kernel. If we - * don't care (see zfs_rename), then ignore the - * error quietly. - */ - if (ifexists) { - return (0); - } - - /* FALLTHROUGH */ - - default: - return (zfs_standard_error_fmt(hdl, errno, - dgettext(TEXT_DOMAIN, "cannot create device links " - "for '%s'"), dataset)); - } - } - - /* - * If privileged call devfsadm and wait for the links to - * magically appear. - * Otherwise, print out an informational message. - */ - - priv_effective = priv_allocset(); - (void) getppriv(PRIV_EFFECTIVE, priv_effective); - privileged = (priv_isfullset(priv_effective) == B_TRUE); - priv_freeset(priv_effective); - - if (privileged) { - if ((dhdl = di_devlink_init(ZFS_DRIVER, - DI_MAKE_LINK)) == NULL) { - zfs_error_aux(hdl, strerror(errno)); - (void) zfs_error_fmt(hdl, errno, - dgettext(TEXT_DOMAIN, "cannot create device links " - "for '%s'"), dataset); - (void) ioctl(hdl->libzfs_fd, ZFS_IOC_REMOVE_MINOR, &zc); - return (-1); - } else { - (void) di_devlink_fini(&dhdl); - } - } else { - char pathname[MAXPATHLEN]; - struct stat64 statbuf; - int i; - -#define MAX_WAIT 10 - - /* - * This is the poor mans way of waiting for the link - * to show up. If after 10 seconds we still don't - * have it, then print out a message. - */ - (void) snprintf(pathname, sizeof (pathname), "/dev/zvol/dsk/%s", - dataset); - - for (i = 0; i != MAX_WAIT; i++) { - if (stat64(pathname, &statbuf) == 0) - break; - (void) sleep(1); - } - if (i == MAX_WAIT) - (void) printf(gettext("%s may not be immediately " - "available\n"), pathname); - } - - return (0); -} - -/* - * Remove a minor node for the given zvol and the associated /dev links. - */ -int -zvol_remove_link(libzfs_handle_t *hdl, const char *dataset) +nvlist_t * +zfs_get_user_props(zfs_handle_t *zhp) { - zfs_cmd_t zc = { 0 }; - - (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); - - if (ioctl(hdl->libzfs_fd, ZFS_IOC_REMOVE_MINOR, &zc) != 0) { - switch (errno) { - case ENXIO: - /* - * Silently ignore the case where the link no longer - * exists, so that 'zfs volfini' can be run multiple - * times without errors. - */ - return (0); - - default: - return (zfs_standard_error_fmt(hdl, errno, - dgettext(TEXT_DOMAIN, "cannot remove device " - "links for '%s'"), dataset)); - } - } - - return (0); + return (zhp->zfs_user_props); } nvlist_t * -zfs_get_user_props(zfs_handle_t *zhp) +zfs_get_recvd_props(zfs_handle_t *zhp) { - return (zhp->zfs_user_props); + if (zhp->zfs_recvd_props == NULL) + if (get_recvd_props_ioctl(zhp) != 0) + return (NULL); + return (zhp->zfs_recvd_props); } /* @@ -3796,10 +3627,12 @@ zfs_get_user_props(zfs_handle_t *zhp) * for new unique user properties and add them to the list. * * - For non fixed-width properties, keep track of the maximum width seen - * so that we can size the column appropriately. + * so that we can size the column appropriately. If the user has + * requested received property values, we also need to compute the width + * of the RECEIVED column. */ int -zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp) +zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) { libzfs_handle_t *hdl = zhp->zfs_hdl; zprop_list_t *entry; @@ -3870,12 +3703,24 @@ zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp) if (strlen(buf) > entry->pl_width) entry->pl_width = strlen(buf); } - } else if (nvlist_lookup_nvlist(userprops, - entry->pl_user_prop, &propval) == 0) { - verify(nvlist_lookup_string(propval, - ZPROP_VALUE, &strval) == 0); - if (strlen(strval) > entry->pl_width) - entry->pl_width = strlen(strval); + if (received && zfs_prop_get_recvd(zhp, + zfs_prop_to_name(entry->pl_prop), + buf, sizeof (buf), B_FALSE) == 0) + if (strlen(buf) > entry->pl_recvd_width) + entry->pl_recvd_width = strlen(buf); + } else { + if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, + &propval) == 0) { + verify(nvlist_lookup_string(propval, + ZPROP_VALUE, &strval) == 0); + if (strlen(strval) > entry->pl_width) + entry->pl_width = strlen(strval); + } + if (received && zfs_prop_get_recvd(zhp, + entry->pl_user_prop, + buf, sizeof (buf), B_FALSE) == 0) + if (strlen(buf) > entry->pl_recvd_width) + entry->pl_recvd_width = strlen(buf); } } @@ -3883,52 +3728,6 @@ zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp) } int -zfs_iscsi_perm_check(libzfs_handle_t *hdl, char *dataset, ucred_t *cred) -{ - zfs_cmd_t zc = { 0 }; - nvlist_t *nvp; - gid_t gid; - uid_t uid; - const gid_t *groups; - int group_cnt; - int error; - - if (nvlist_alloc(&nvp, NV_UNIQUE_NAME, 0) != 0) - return (no_memory(hdl)); - - uid = ucred_geteuid(cred); - gid = ucred_getegid(cred); - group_cnt = ucred_getgroups(cred, &groups); - - if (uid == (uid_t)-1 || gid == (uid_t)-1 || group_cnt == (uid_t)-1) - return (1); - - if (nvlist_add_uint32(nvp, ZFS_DELEG_PERM_UID, uid) != 0) { - nvlist_free(nvp); - return (1); - } - - if (nvlist_add_uint32(nvp, ZFS_DELEG_PERM_GID, gid) != 0) { - nvlist_free(nvp); - return (1); - } - - if (nvlist_add_uint32_array(nvp, - ZFS_DELEG_PERM_GROUPS, (uint32_t *)groups, group_cnt) != 0) { - nvlist_free(nvp); - return (1); - } - (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); - - if (zcmd_write_src_nvlist(hdl, &zc, nvp)) - return (-1); - - error = ioctl(hdl->libzfs_fd, ZFS_IOC_ISCSI_PERM_CHECK, &zc); - nvlist_free(nvp); - return (error); -} - -int zfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, char *resource, void *export, void *sharetab, int sharemax, zfs_share_op_t operation) @@ -3966,9 +3765,11 @@ zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); /* - * We leave user:props in the nvlist, so there will be - * some ZPROP_INVAL. To be extra safe, don't prune - * those. + * User properties will result in ZPROP_INVAL, and since we + * only know how to prune standard ZFS properties, we always + * leave these in the list. This can also happen if we + * encounter an unknown DSL property (when running older + * software, for example). */ if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) (void) nvlist_remove(zhp->zfs_props, @@ -4097,15 +3898,18 @@ zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, int zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, - boolean_t recursive) + boolean_t recursive, boolean_t temphold, boolean_t enoent_ok) { zfs_cmd_t zc = { 0 }; libzfs_handle_t *hdl = zhp->zfs_hdl; (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); - (void) strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)); + if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) + >= sizeof (zc.zc_string)) + return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); zc.zc_cookie = recursive; + zc.zc_temphold = temphold; if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) { char errbuf[ZFS_MAXNAMELEN+32]; @@ -4117,6 +3921,14 @@ zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot hold '%s@%s'"), zc.zc_name, snapname); switch (errno) { + case E2BIG: + /* + * Temporary tags wind up having the ds object id + * prepended. So even if we passed the length check + * above, it's still possible for the tag to wind + * up being slightly too long. + */ + return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf)); case ENOTSUP: zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be upgraded")); @@ -4125,6 +3937,10 @@ zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); case EEXIST: return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf)); + case ENOENT: + if (enoent_ok) + return (0); + /* FALLTHROUGH */ default: return (zfs_standard_error_fmt(hdl, errno, errbuf)); } @@ -4133,6 +3949,102 @@ zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, return (0); } +struct hold_range_arg { + zfs_handle_t *origin; + const char *fromsnap; + const char *tosnap; + char lastsnapheld[ZFS_MAXNAMELEN]; + const char *tag; + boolean_t temphold; + boolean_t seento; + boolean_t seenfrom; + boolean_t holding; + boolean_t recursive; + snapfilter_cb_t *filter_cb; + void *filter_cb_arg; +}; + +static int +zfs_hold_range_one(zfs_handle_t *zhp, void *arg) +{ + struct hold_range_arg *hra = arg; + const char *thissnap; + int error; + + thissnap = strchr(zfs_get_name(zhp), '@') + 1; + + if (hra->fromsnap && !hra->seenfrom && + strcmp(hra->fromsnap, thissnap) == 0) + hra->seenfrom = B_TRUE; + + /* snap is older or newer than the desired range, ignore it */ + if (hra->seento || !hra->seenfrom) { + zfs_close(zhp); + return (0); + } + + if (!hra->seento && strcmp(hra->tosnap, thissnap) == 0) + hra->seento = B_TRUE; + + if (hra->filter_cb != NULL && + hra->filter_cb(zhp, hra->filter_cb_arg) == B_FALSE) { + zfs_close(zhp); + return (0); + } + + if (hra->holding) { + /* We could be racing with destroy, so ignore ENOENT. */ + error = zfs_hold(hra->origin, thissnap, hra->tag, + hra->recursive, hra->temphold, B_TRUE); + if (error == 0) { + (void) strlcpy(hra->lastsnapheld, zfs_get_name(zhp), + sizeof (hra->lastsnapheld)); + } + } else { + error = zfs_release(hra->origin, thissnap, hra->tag, + hra->recursive); + } + + zfs_close(zhp); + return (error); +} + +/* + * Add a user hold on the set of snapshots starting with fromsnap up to + * and including tosnap. If we're unable to to acquire a particular hold, + * undo any holds up to that point. + */ +int +zfs_hold_range(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, + const char *tag, boolean_t recursive, boolean_t temphold, + snapfilter_cb_t filter_cb, void *cbarg) +{ + struct hold_range_arg arg = { 0 }; + int error; + + arg.origin = zhp; + arg.fromsnap = fromsnap; + arg.tosnap = tosnap; + arg.tag = tag; + arg.temphold = temphold; + arg.holding = B_TRUE; + arg.recursive = recursive; + arg.seenfrom = (fromsnap == NULL); + arg.filter_cb = filter_cb; + arg.filter_cb_arg = cbarg; + + error = zfs_iter_snapshots_sorted(zhp, zfs_hold_range_one, &arg); + + /* + * Make sure we either hold the entire range or none. + */ + if (error && arg.lastsnapheld[0] != '\0') { + (void) zfs_release_range(zhp, fromsnap, + (const char *)arg.lastsnapheld, tag, recursive); + } + return (error); +} + int zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, boolean_t recursive) @@ -4142,7 +4054,9 @@ zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); - (void) strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)); + if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) + >= sizeof (zc.zc_string)) + return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); zc.zc_cookie = recursive; if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) { @@ -4153,7 +4067,8 @@ zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, * zc.zc_name. */ (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, - "cannot release '%s@%s'"), zc.zc_name, snapname); + "cannot release '%s' from '%s@%s'"), tag, zc.zc_name, + snapname); switch (errno) { case ESRCH: return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf)); @@ -4170,3 +4085,61 @@ zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, return (0); } + +/* + * Release a user hold from the set of snapshots starting with fromsnap + * up to and including tosnap. + */ +int +zfs_release_range(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, + const char *tag, boolean_t recursive) +{ + struct hold_range_arg arg = { 0 }; + + arg.origin = zhp; + arg.fromsnap = fromsnap; + arg.tosnap = tosnap; + arg.tag = tag; + arg.recursive = recursive; + arg.seenfrom = (fromsnap == NULL); + + return (zfs_iter_snapshots_sorted(zhp, zfs_hold_range_one, &arg)); +} + +uint64_t +zvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) +{ + uint64_t numdb; + uint64_t nblocks, volblocksize; + int ncopies; + char *strval; + + if (nvlist_lookup_string(props, + zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) + ncopies = atoi(strval); + else + ncopies = 1; + if (nvlist_lookup_uint64(props, + zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), + &volblocksize) != 0) + volblocksize = ZVOL_DEFAULT_BLOCKSIZE; + nblocks = volsize/volblocksize; + /* start with metadnode L0-L6 */ + numdb = 7; + /* calculate number of indirects */ + while (nblocks > 1) { + nblocks += DNODES_PER_LEVEL - 1; + nblocks /= DNODES_PER_LEVEL; + numdb += nblocks; + } + numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); + volsize *= ncopies; + /* + * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't + * compressed, but in practice they compress down to about + * 1100 bytes + */ + numdb *= 1ULL << DN_MAX_INDBLKSHIFT; + volsize += numdb; + return (volsize); +} diff --git a/lib/libzfs/libzfs_fru.c b/lib/libzfs/libzfs_fru.c new file mode 100644 index 000000000..788fa2cfb --- /dev/null +++ b/lib/libzfs/libzfs_fru.c @@ -0,0 +1,452 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#include <dlfcn.h> +#include <errno.h> +#include <libintl.h> +#include <link.h> +#include <pthread.h> +#include <strings.h> +#include <unistd.h> + +#include <libzfs.h> + +#include <fm/libtopo.h> +#include <sys/fm/protocol.h> +#include <sys/systeminfo.h> + +#include "libzfs_impl.h" + +/* + * This file is responsible for determining the relationship between I/O + * devices paths and physical locations. In the world of MPxIO and external + * enclosures, the device path is not synonymous with the physical location. + * If you remove a drive and insert it into a different slot, it will end up + * with the same path under MPxIO. If you recable storage enclosures, the + * device paths may change. All of this makes it difficult to implement the + * 'autoreplace' property, which is supposed to automatically manage disk + * replacement based on physical slot. + * + * In order to work around these limitations, we have a per-vdev FRU property + * that is the libtopo path (minus disk-specific authority information) to the + * physical location of the device on the system. This is an optional + * property, and is only needed when using the 'autoreplace' property or when + * generating FMA faults against vdevs. + */ + +/* + * Because the FMA packages depend on ZFS, we have to dlopen() libtopo in case + * it is not present. We only need this once per library instance, so it is + * not part of the libzfs handle. + */ +static void *_topo_dlhandle; +static topo_hdl_t *(*_topo_open)(int, const char *, int *); +static void (*_topo_close)(topo_hdl_t *); +static char *(*_topo_snap_hold)(topo_hdl_t *, const char *, int *); +static void (*_topo_snap_release)(topo_hdl_t *); +static topo_walk_t *(*_topo_walk_init)(topo_hdl_t *, const char *, + topo_walk_cb_t, void *, int *); +static int (*_topo_walk_step)(topo_walk_t *, int); +static void (*_topo_walk_fini)(topo_walk_t *); +static void (*_topo_hdl_strfree)(topo_hdl_t *, char *); +static char *(*_topo_node_name)(tnode_t *); +static int (*_topo_prop_get_string)(tnode_t *, const char *, const char *, + char **, int *); +static int (*_topo_node_fru)(tnode_t *, nvlist_t **, nvlist_t *, int *); +static int (*_topo_fmri_nvl2str)(topo_hdl_t *, nvlist_t *, char **, int *); +static int (*_topo_fmri_strcmp_noauth)(topo_hdl_t *, const char *, + const char *); + +#define ZFS_FRU_HASH_SIZE 257 + +static size_t +fru_strhash(const char *key) +{ + ulong_t g, h = 0; + const char *p; + + for (p = key; *p != '\0'; p++) { + h = (h << 4) + *p; + + if ((g = (h & 0xf0000000)) != 0) { + h ^= (g >> 24); + h ^= g; + } + } + + return (h % ZFS_FRU_HASH_SIZE); +} + +static int +libzfs_fru_gather(topo_hdl_t *thp, tnode_t *tn, void *arg) +{ + libzfs_handle_t *hdl = arg; + nvlist_t *fru; + char *devpath, *frustr; + int err; + libzfs_fru_t *frup; + size_t idx; + + /* + * If this is the chassis node, and we don't yet have the system + * chassis ID, then fill in this value now. + */ + if (hdl->libzfs_chassis_id[0] == '\0' && + strcmp(_topo_node_name(tn), "chassis") == 0) { + if (_topo_prop_get_string(tn, FM_FMRI_AUTHORITY, + FM_FMRI_AUTH_CHASSIS, &devpath, &err) == 0) + (void) strlcpy(hdl->libzfs_chassis_id, devpath, + sizeof (hdl->libzfs_chassis_id)); + } + + /* + * Skip non-disk nodes. + */ + if (strcmp(_topo_node_name(tn), "disk") != 0) + return (TOPO_WALK_NEXT); + + /* + * Get the devfs path and FRU. + */ + if (_topo_prop_get_string(tn, "io", "devfs-path", &devpath, &err) != 0) + return (TOPO_WALK_NEXT); + + if (libzfs_fru_lookup(hdl, devpath) != NULL) { + _topo_hdl_strfree(thp, devpath); + return (TOPO_WALK_NEXT); + } + + if (_topo_node_fru(tn, &fru, NULL, &err) != 0) { + _topo_hdl_strfree(thp, devpath); + return (TOPO_WALK_NEXT); + } + + /* + * Convert the FRU into a string. + */ + if (_topo_fmri_nvl2str(thp, fru, &frustr, &err) != 0) { + nvlist_free(fru); + _topo_hdl_strfree(thp, devpath); + return (TOPO_WALK_NEXT); + } + + nvlist_free(fru); + + /* + * Finally, we have a FRU string and device path. Add it to the hash. + */ + if ((frup = calloc(sizeof (libzfs_fru_t), 1)) == NULL) { + _topo_hdl_strfree(thp, devpath); + _topo_hdl_strfree(thp, frustr); + return (TOPO_WALK_NEXT); + } + + if ((frup->zf_device = strdup(devpath)) == NULL || + (frup->zf_fru = strdup(frustr)) == NULL) { + free(frup->zf_device); + free(frup); + _topo_hdl_strfree(thp, devpath); + _topo_hdl_strfree(thp, frustr); + return (TOPO_WALK_NEXT); + } + + _topo_hdl_strfree(thp, devpath); + _topo_hdl_strfree(thp, frustr); + + idx = fru_strhash(frup->zf_device); + frup->zf_chain = hdl->libzfs_fru_hash[idx]; + hdl->libzfs_fru_hash[idx] = frup; + frup->zf_next = hdl->libzfs_fru_list; + hdl->libzfs_fru_list = frup; + + return (TOPO_WALK_NEXT); +} + +/* + * Called during initialization to setup the dynamic libtopo connection. + */ +#pragma init(libzfs_init_fru) +static void +libzfs_init_fru(void) +{ + char path[MAXPATHLEN]; + char isa[257]; + +#if defined(_LP64) + if (sysinfo(SI_ARCHITECTURE_64, isa, sizeof (isa)) < 0) + isa[0] = '\0'; +#else + isa[0] = '\0'; +#endif + (void) snprintf(path, sizeof (path), + "/usr/lib/fm/%s/libtopo.so", isa); + + if ((_topo_dlhandle = dlopen(path, RTLD_LAZY)) == NULL) + return; + + _topo_open = (topo_hdl_t *(*)()) + dlsym(_topo_dlhandle, "topo_open"); + _topo_close = (void (*)()) + dlsym(_topo_dlhandle, "topo_close"); + _topo_snap_hold = (char *(*)()) + dlsym(_topo_dlhandle, "topo_snap_hold"); + _topo_snap_release = (void (*)()) + dlsym(_topo_dlhandle, "topo_snap_release"); + _topo_walk_init = (topo_walk_t *(*)()) + dlsym(_topo_dlhandle, "topo_walk_init"); + _topo_walk_step = (int (*)()) + dlsym(_topo_dlhandle, "topo_walk_step"); + _topo_walk_fini = (void (*)()) + dlsym(_topo_dlhandle, "topo_walk_fini"); + _topo_hdl_strfree = (void (*)()) + dlsym(_topo_dlhandle, "topo_hdl_strfree"); + _topo_node_name = (char *(*)()) + dlsym(_topo_dlhandle, "topo_node_name"); + _topo_prop_get_string = (int (*)()) + dlsym(_topo_dlhandle, "topo_prop_get_string"); + _topo_node_fru = (int (*)()) + dlsym(_topo_dlhandle, "topo_node_fru"); + _topo_fmri_nvl2str = (int (*)()) + dlsym(_topo_dlhandle, "topo_fmri_nvl2str"); + _topo_fmri_strcmp_noauth = (int (*)()) + dlsym(_topo_dlhandle, "topo_fmri_strcmp_noauth"); + + if (_topo_open == NULL || _topo_close == NULL || + _topo_snap_hold == NULL || _topo_snap_release == NULL || + _topo_walk_init == NULL || _topo_walk_step == NULL || + _topo_walk_fini == NULL || _topo_hdl_strfree == NULL || + _topo_node_name == NULL || _topo_prop_get_string == NULL || + _topo_node_fru == NULL || _topo_fmri_nvl2str == NULL || + _topo_fmri_strcmp_noauth == NULL) { + (void) dlclose(_topo_dlhandle); + _topo_dlhandle = NULL; + } +} + +/* + * Refresh the mappings from device path -> FMRI. We do this by walking the + * hc topology looking for disk nodes, and recording the io/devfs-path and FRU. + * Note that we strip out the disk-specific authority information (serial, + * part, revision, etc) so that we are left with only the identifying + * characteristics of the slot (hc path and chassis-id). + */ +void +libzfs_fru_refresh(libzfs_handle_t *hdl) +{ + int err; + char *uuid; + topo_hdl_t *thp; + topo_walk_t *twp; + + if (_topo_dlhandle == NULL) + return; + + /* + * Clear the FRU hash and initialize our basic structures. + */ + libzfs_fru_clear(hdl, B_FALSE); + + if ((hdl->libzfs_topo_hdl = _topo_open(TOPO_VERSION, + NULL, &err)) == NULL) + return; + + thp = hdl->libzfs_topo_hdl; + + if ((uuid = _topo_snap_hold(thp, NULL, &err)) == NULL) + return; + + _topo_hdl_strfree(thp, uuid); + + if (hdl->libzfs_fru_hash == NULL && + (hdl->libzfs_fru_hash = + calloc(ZFS_FRU_HASH_SIZE * sizeof (void *), 1)) == NULL) + return; + + /* + * We now have a topo snapshot, so iterate over the hc topology looking + * for disks to add to the hash. + */ + twp = _topo_walk_init(thp, FM_FMRI_SCHEME_HC, + libzfs_fru_gather, hdl, &err); + if (twp != NULL) { + (void) _topo_walk_step(twp, TOPO_WALK_CHILD); + _topo_walk_fini(twp); + } +} + +/* + * Given a devfs path, return the FRU for the device, if known. This will + * automatically call libzfs_fru_refresh() if it hasn't already been called by + * the consumer. The string returned is valid until the next call to + * libzfs_fru_refresh(). + */ +const char * +libzfs_fru_lookup(libzfs_handle_t *hdl, const char *devpath) +{ + size_t idx = fru_strhash(devpath); + libzfs_fru_t *frup; + + if (hdl->libzfs_fru_hash == NULL) + libzfs_fru_refresh(hdl); + + if (hdl->libzfs_fru_hash == NULL) + return (NULL); + + for (frup = hdl->libzfs_fru_hash[idx]; frup != NULL; + frup = frup->zf_chain) { + if (strcmp(devpath, frup->zf_device) == 0) + return (frup->zf_fru); + } + + return (NULL); +} + +/* + * Given a fru path, return the device path. This will automatically call + * libzfs_fru_refresh() if it hasn't already been called by the consumer. The + * string returned is valid until the next call to libzfs_fru_refresh(). + */ +const char * +libzfs_fru_devpath(libzfs_handle_t *hdl, const char *fru) +{ + libzfs_fru_t *frup; + size_t idx; + + if (hdl->libzfs_fru_hash == NULL) + libzfs_fru_refresh(hdl); + + if (hdl->libzfs_fru_hash == NULL) + return (NULL); + + for (idx = 0; idx < ZFS_FRU_HASH_SIZE; idx++) { + for (frup = hdl->libzfs_fru_hash[idx]; frup != NULL; + frup = frup->zf_next) { + if (_topo_fmri_strcmp_noauth(hdl->libzfs_topo_hdl, + fru, frup->zf_fru)) + return (frup->zf_device); + } + } + + return (NULL); +} + +/* + * Change the stored FRU for the given vdev. + */ +int +zpool_fru_set(zpool_handle_t *zhp, uint64_t vdev_guid, const char *fru) +{ + zfs_cmd_t zc = { 0 }; + + (void) strncpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); + (void) strncpy(zc.zc_value, fru, sizeof (zc.zc_value)); + zc.zc_guid = vdev_guid; + + if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_SETFRU, &zc) != 0) + return (zpool_standard_error_fmt(zhp->zpool_hdl, errno, + dgettext(TEXT_DOMAIN, "cannot set FRU"))); + + return (0); +} + +/* + * Compare to two FRUs, ignoring any authority information. + */ +boolean_t +libzfs_fru_compare(libzfs_handle_t *hdl, const char *a, const char *b) +{ + if (hdl->libzfs_fru_hash == NULL) + libzfs_fru_refresh(hdl); + + if (hdl->libzfs_fru_hash == NULL) + return (strcmp(a, b) == 0); + + return (_topo_fmri_strcmp_noauth(hdl->libzfs_topo_hdl, a, b)); +} + +/* + * This special function checks to see whether the FRU indicates it's supposed + * to be in the system chassis, but the chassis-id doesn't match. This can + * happen in a clustered case, where both head nodes have the same logical + * disk, but opening the device on the other head node is meaningless. + */ +boolean_t +libzfs_fru_notself(libzfs_handle_t *hdl, const char *fru) +{ + const char *chassisid; + size_t len; + + if (hdl->libzfs_fru_hash == NULL) + libzfs_fru_refresh(hdl); + + if (hdl->libzfs_chassis_id[0] == '\0') + return (B_FALSE); + + if (strstr(fru, "/chassis=0/") == NULL) + return (B_FALSE); + + if ((chassisid = strstr(fru, ":chassis-id=")) == NULL) + return (B_FALSE); + + chassisid += 12; + len = strlen(hdl->libzfs_chassis_id); + if (strncmp(chassisid, hdl->libzfs_chassis_id, len) == 0 && + (chassisid[len] == '/' || chassisid[len] == ':')) + return (B_FALSE); + + return (B_TRUE); +} + +/* + * Clear memory associated with the FRU hash. + */ +void +libzfs_fru_clear(libzfs_handle_t *hdl, boolean_t final) +{ + libzfs_fru_t *frup; + + while ((frup = hdl->libzfs_fru_list) != NULL) { + hdl->libzfs_fru_list = frup->zf_next; + free(frup->zf_device); + free(frup->zf_fru); + free(frup); + } + + hdl->libzfs_fru_list = NULL; + + if (hdl->libzfs_topo_hdl != NULL) { + _topo_snap_release(hdl->libzfs_topo_hdl); + _topo_close(hdl->libzfs_topo_hdl); + hdl->libzfs_topo_hdl = NULL; + } + + if (final) { + free(hdl->libzfs_fru_hash); + } else if (hdl->libzfs_fru_hash != NULL) { + bzero(hdl->libzfs_fru_hash, + ZFS_FRU_HASH_SIZE * sizeof (void *)); + } +} diff --git a/lib/libzfs/libzfs_import.c b/lib/libzfs/libzfs_import.c index d67776889..fd3044b1d 100644 --- a/lib/libzfs/libzfs_import.c +++ b/lib/libzfs/libzfs_import.c @@ -19,12 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - /* * Pool import support functions. * @@ -41,15 +39,21 @@ * using our derived config, and record the results. */ +#include <ctype.h> #include <devid.h> #include <dirent.h> #include <errno.h> #include <libintl.h> +#include <stddef.h> #include <stdlib.h> #include <string.h> #include <sys/stat.h> #include <unistd.h> #include <fcntl.h> +#include <sys/vtoc.h> +#include <sys/dktp/fdisk.h> +#include <sys/efi_partition.h> +#include <thread_pool.h> #include <sys/vdev_impl.h> @@ -388,8 +392,6 @@ refresh_config(libzfs_handle_t *hdl, nvlist_t *config) } if (err) { - (void) zpool_standard_error(hdl, errno, - dgettext(TEXT_DOMAIN, "cannot discover pools")); zcmd_free_nvlists(&zc); return (NULL); } @@ -404,6 +406,21 @@ refresh_config(libzfs_handle_t *hdl, nvlist_t *config) } /* + * Determine if the vdev id is a hole in the namespace. + */ +boolean_t +vdev_is_hole(uint64_t *hole_array, uint_t holes, uint_t id) +{ + for (int c = 0; c < holes; c++) { + + /* Top-level is a hole */ + if (hole_array[c] == id) + return (B_TRUE); + } + return (B_FALSE); +} + +/* * Convert our list of pools into the definitive set of configurations. We * start by picking the best config for each toplevel vdev. Once that's done, * we assemble the toplevel vdevs into a full config for the pool. We make a @@ -425,17 +442,20 @@ get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) uint64_t version, guid; uint_t children = 0; nvlist_t **child = NULL; + uint_t holes; + uint64_t *hole_array, max_id; uint_t c; boolean_t isactive; uint64_t hostid; nvlist_t *nvl; boolean_t found_one = B_FALSE; + boolean_t valid_top_config = B_FALSE; if (nvlist_alloc(&ret, 0, 0) != 0) goto nomem; for (pe = pl->pools; pe != NULL; pe = pe->pe_next) { - uint64_t id; + uint64_t id, max_txg = 0; if (nvlist_alloc(&config, NV_UNIQUE_NAME, 0) != 0) goto nomem; @@ -463,6 +483,42 @@ get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) } } + /* + * We rely on the fact that the max txg for the + * pool will contain the most up-to-date information + * about the valid top-levels in the vdev namespace. + */ + if (best_txg > max_txg) { + (void) nvlist_remove(config, + ZPOOL_CONFIG_VDEV_CHILDREN, + DATA_TYPE_UINT64); + (void) nvlist_remove(config, + ZPOOL_CONFIG_HOLE_ARRAY, + DATA_TYPE_UINT64_ARRAY); + + max_txg = best_txg; + hole_array = NULL; + holes = 0; + max_id = 0; + valid_top_config = B_FALSE; + + if (nvlist_lookup_uint64(tmp, + ZPOOL_CONFIG_VDEV_CHILDREN, &max_id) == 0) { + verify(nvlist_add_uint64(config, + ZPOOL_CONFIG_VDEV_CHILDREN, + max_id) == 0); + valid_top_config = B_TRUE; + } + + if (nvlist_lookup_uint64_array(tmp, + ZPOOL_CONFIG_HOLE_ARRAY, &hole_array, + &holes) == 0) { + verify(nvlist_add_uint64_array(config, + ZPOOL_CONFIG_HOLE_ARRAY, + hole_array, holes) == 0); + } + } + if (!config_seen) { /* * Copy the relevant pieces of data to the pool @@ -522,6 +578,7 @@ get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) ZPOOL_CONFIG_VDEV_TREE, &nvtop) == 0); verify(nvlist_lookup_uint64(nvtop, ZPOOL_CONFIG_ID, &id) == 0); + if (id >= children) { nvlist_t **newchild; @@ -542,17 +599,82 @@ get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) } + /* + * If we have information about all the top-levels then + * clean up the nvlist which we've constructed. This + * means removing any extraneous devices that are + * beyond the valid range or adding devices to the end + * of our array which appear to be missing. + */ + if (valid_top_config) { + if (max_id < children) { + for (c = max_id; c < children; c++) + nvlist_free(child[c]); + children = max_id; + } else if (max_id > children) { + nvlist_t **newchild; + + newchild = zfs_alloc(hdl, (max_id) * + sizeof (nvlist_t *)); + if (newchild == NULL) + goto nomem; + + for (c = 0; c < children; c++) + newchild[c] = child[c]; + + free(child); + child = newchild; + children = max_id; + } + } + verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) == 0); /* + * The vdev namespace may contain holes as a result of + * device removal. We must add them back into the vdev + * tree before we process any missing devices. + */ + if (holes > 0) { + ASSERT(valid_top_config); + + for (c = 0; c < children; c++) { + nvlist_t *holey; + + if (child[c] != NULL || + !vdev_is_hole(hole_array, holes, c)) + continue; + + if (nvlist_alloc(&holey, NV_UNIQUE_NAME, + 0) != 0) + goto nomem; + + /* + * Holes in the namespace are treated as + * "hole" top-level vdevs and have a + * special flag set on them. + */ + if (nvlist_add_string(holey, + ZPOOL_CONFIG_TYPE, + VDEV_TYPE_HOLE) != 0 || + nvlist_add_uint64(holey, + ZPOOL_CONFIG_ID, c) != 0 || + nvlist_add_uint64(holey, + ZPOOL_CONFIG_GUID, 0ULL) != 0) + goto nomem; + child[c] = holey; + } + } + + /* * Look for any missing top-level vdevs. If this is the case, * create a faked up 'missing' vdev as a placeholder. We cannot * simply compress the child array, because the kernel performs * certain checks to make sure the vdev IDs match their location * in the configuration. */ - for (c = 0; c < children; c++) + for (c = 0; c < children; c++) { if (child[c] == NULL) { nvlist_t *missing; if (nvlist_alloc(&missing, NV_UNIQUE_NAME, @@ -570,6 +692,7 @@ get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) } child[c] = missing; } + } /* * Put all of this pool's top-level vdevs into a root vdev. @@ -636,8 +759,11 @@ get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) continue; } - if ((nvl = refresh_config(hdl, config)) == NULL) - goto error; + if ((nvl = refresh_config(hdl, config)) == NULL) { + nvlist_free(config); + config = NULL; + continue; + } nvlist_free(config); config = nvl; @@ -777,6 +903,212 @@ zpool_read_label(int fd, nvlist_t **config) return (0); } +typedef struct rdsk_node { + char *rn_name; + int rn_dfd; + libzfs_handle_t *rn_hdl; + nvlist_t *rn_config; + avl_tree_t *rn_avl; + avl_node_t rn_node; + boolean_t rn_nozpool; +} rdsk_node_t; + +static int +slice_cache_compare(const void *arg1, const void *arg2) +{ + const char *nm1 = ((rdsk_node_t *)arg1)->rn_name; + const char *nm2 = ((rdsk_node_t *)arg2)->rn_name; + char *nm1slice, *nm2slice; + int rv; + + /* + * slices zero and two are the most likely to provide results, + * so put those first + */ + nm1slice = strstr(nm1, "s0"); + nm2slice = strstr(nm2, "s0"); + if (nm1slice && !nm2slice) { + return (-1); + } + if (!nm1slice && nm2slice) { + return (1); + } + nm1slice = strstr(nm1, "s2"); + nm2slice = strstr(nm2, "s2"); + if (nm1slice && !nm2slice) { + return (-1); + } + if (!nm1slice && nm2slice) { + return (1); + } + + rv = strcmp(nm1, nm2); + if (rv == 0) + return (0); + return (rv > 0 ? 1 : -1); +} + +static void +check_one_slice(avl_tree_t *r, char *diskname, uint_t partno, + diskaddr_t size, uint_t blksz) +{ + rdsk_node_t tmpnode; + rdsk_node_t *node; + char sname[MAXNAMELEN]; + + tmpnode.rn_name = &sname[0]; + (void) snprintf(tmpnode.rn_name, MAXNAMELEN, "%s%u", + diskname, partno); + /* + * protect against division by zero for disk labels that + * contain a bogus sector size + */ + if (blksz == 0) + blksz = DEV_BSIZE; + /* too small to contain a zpool? */ + if ((size < (SPA_MINDEVSIZE / blksz)) && + (node = avl_find(r, &tmpnode, NULL))) + node->rn_nozpool = B_TRUE; +} + +static void +nozpool_all_slices(avl_tree_t *r, const char *sname) +{ + char diskname[MAXNAMELEN]; + char *ptr; + int i; + + (void) strncpy(diskname, sname, MAXNAMELEN); + if (((ptr = strrchr(diskname, 's')) == NULL) && + ((ptr = strrchr(diskname, 'p')) == NULL)) + return; + ptr[0] = 's'; + ptr[1] = '\0'; + for (i = 0; i < NDKMAP; i++) + check_one_slice(r, diskname, i, 0, 1); + ptr[0] = 'p'; + for (i = 0; i <= FD_NUMPART; i++) + check_one_slice(r, diskname, i, 0, 1); +} + +static void +check_slices(avl_tree_t *r, int fd, const char *sname) +{ + struct extvtoc vtoc; + struct dk_gpt *gpt; + char diskname[MAXNAMELEN]; + char *ptr; + int i; + + (void) strncpy(diskname, sname, MAXNAMELEN); + if ((ptr = strrchr(diskname, 's')) == NULL || !isdigit(ptr[1])) + return; + ptr[1] = '\0'; + + if (read_extvtoc(fd, &vtoc) >= 0) { + for (i = 0; i < NDKMAP; i++) + check_one_slice(r, diskname, i, + vtoc.v_part[i].p_size, vtoc.v_sectorsz); + } else if (efi_alloc_and_read(fd, &gpt) >= 0) { + /* + * on x86 we'll still have leftover links that point + * to slices s[9-15], so use NDKMAP instead + */ + for (i = 0; i < NDKMAP; i++) + check_one_slice(r, diskname, i, + gpt->efi_parts[i].p_size, gpt->efi_lbasize); + /* nodes p[1-4] are never used with EFI labels */ + ptr[0] = 'p'; + for (i = 1; i <= FD_NUMPART; i++) + check_one_slice(r, diskname, i, 0, 1); + efi_free(gpt); + } +} + +static void +zpool_open_func(void *arg) +{ + rdsk_node_t *rn = arg; + struct stat64 statbuf; + nvlist_t *config; + int fd; + + if (rn->rn_nozpool) + return; + if ((fd = openat64(rn->rn_dfd, rn->rn_name, O_RDONLY)) < 0) { + /* symlink to a device that's no longer there */ + if (errno == ENOENT) + nozpool_all_slices(rn->rn_avl, rn->rn_name); + return; + } + /* + * Ignore failed stats. We only want regular + * files, character devs and block devs. + */ + if (fstat64(fd, &statbuf) != 0 || + (!S_ISREG(statbuf.st_mode) && + !S_ISCHR(statbuf.st_mode) && + !S_ISBLK(statbuf.st_mode))) { + (void) close(fd); + return; + } + /* this file is too small to hold a zpool */ + if (S_ISREG(statbuf.st_mode) && + statbuf.st_size < SPA_MINDEVSIZE) { + (void) close(fd); + return; + } else if (!S_ISREG(statbuf.st_mode)) { + /* + * Try to read the disk label first so we don't have to + * open a bunch of minor nodes that can't have a zpool. + */ + check_slices(rn->rn_avl, fd, rn->rn_name); + } + + if ((zpool_read_label(fd, &config)) != 0) { + (void) close(fd); + (void) no_memory(rn->rn_hdl); + return; + } + (void) close(fd); + + + rn->rn_config = config; + if (config != NULL) { + assert(rn->rn_nozpool == B_FALSE); + } +} + +/* + * Given a file descriptor, clear (zero) the label information. This function + * is currently only used in the appliance stack as part of the ZFS sysevent + * module. + */ +int +zpool_clear_label(int fd) +{ + struct stat64 statbuf; + int l; + vdev_label_t *label; + uint64_t size; + + if (fstat64(fd, &statbuf) == -1) + return (0); + size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t); + + if ((label = calloc(sizeof (vdev_label_t), 1)) == NULL) + return (-1); + + for (l = 0; l < VDEV_LABELS; l++) { + if (pwrite64(fd, label, sizeof (vdev_label_t), + label_offset(size, l)) != sizeof (vdev_label_t)) + return (-1); + } + + free(label); + return (0); +} + /* * Given a list of directories to search, find all pools stored on disk. This * includes partial pools which are not available to import. If no args are @@ -785,30 +1117,28 @@ zpool_read_label(int fd, nvlist_t **config) * to import a specific pool. */ static nvlist_t * -zpool_find_import_impl(libzfs_handle_t *hdl, int argc, char **argv, - boolean_t active_ok, char *poolname, uint64_t guid) +zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg) { - int i; + int i, dirs = iarg->paths; DIR *dirp = NULL; struct dirent64 *dp; char path[MAXPATHLEN]; - char *end; + char *end, **dir = iarg->path; size_t pathleft; - struct stat64 statbuf; - nvlist_t *ret = NULL, *config; + nvlist_t *ret = NULL; static char *default_dir = "/dev/dsk"; - int fd; pool_list_t pools = { 0 }; pool_entry_t *pe, *penext; vdev_entry_t *ve, *venext; config_entry_t *ce, *cenext; name_entry_t *ne, *nenext; + avl_tree_t slice_cache; + rdsk_node_t *slice; + void *cookie; - verify(poolname == NULL || guid == 0); - - if (argc == 0) { - argc = 1; - argv = &default_dir; + if (dirs == 0) { + dirs = 1; + dir = &default_dir; } /* @@ -816,15 +1146,15 @@ zpool_find_import_impl(libzfs_handle_t *hdl, int argc, char **argv, * possible device, organizing the information according to pool GUID * and toplevel GUID. */ - for (i = 0; i < argc; i++) { + for (i = 0; i < dirs; i++) { + tpool_t *t; char *rdsk; int dfd; /* use realpath to normalize the path */ - if (realpath(argv[i], path) == 0) { + if (realpath(dir[i], path) == 0) { (void) zfs_error_fmt(hdl, EZFS_BADPATH, - dgettext(TEXT_DOMAIN, "cannot open '%s'"), - argv[i]); + dgettext(TEXT_DOMAIN, "cannot open '%s'"), dir[i]); goto error; } end = &path[strlen(path)]; @@ -851,6 +1181,8 @@ zpool_find_import_impl(libzfs_handle_t *hdl, int argc, char **argv, goto error; } + avl_create(&slice_cache, slice_cache_compare, + sizeof (rdsk_node_t), offsetof(rdsk_node_t, rn_node)); /* * This is not MT-safe, but we have no MT consumers of libzfs */ @@ -860,46 +1192,53 @@ zpool_find_import_impl(libzfs_handle_t *hdl, int argc, char **argv, (name[1] == 0 || (name[1] == '.' && name[2] == 0))) continue; - if ((fd = openat64(dfd, name, O_RDONLY)) < 0) - continue; - - /* - * Ignore failed stats. We only want regular - * files, character devs and block devs. - */ - if (fstat64(fd, &statbuf) != 0 || - (!S_ISREG(statbuf.st_mode) && - !S_ISCHR(statbuf.st_mode) && - !S_ISBLK(statbuf.st_mode))) { - (void) close(fd); - continue; - } - - if ((zpool_read_label(fd, &config)) != 0) { - (void) close(fd); - (void) no_memory(hdl); - goto error; - } - - (void) close(fd); - - if (config != NULL) { + slice = zfs_alloc(hdl, sizeof (rdsk_node_t)); + slice->rn_name = zfs_strdup(hdl, name); + slice->rn_avl = &slice_cache; + slice->rn_dfd = dfd; + slice->rn_hdl = hdl; + slice->rn_nozpool = B_FALSE; + avl_add(&slice_cache, slice); + } + /* + * create a thread pool to do all of this in parallel; + * rn_nozpool is not protected, so this is racy in that + * multiple tasks could decide that the same slice can + * not hold a zpool, which is benign. Also choose + * double the number of processors; we hold a lot of + * locks in the kernel, so going beyond this doesn't + * buy us much. + */ + t = tpool_create(1, 2 * sysconf(_SC_NPROCESSORS_ONLN), + 0, NULL); + for (slice = avl_first(&slice_cache); slice; + (slice = avl_walk(&slice_cache, slice, + AVL_AFTER))) + (void) tpool_dispatch(t, zpool_open_func, slice); + tpool_wait(t); + tpool_destroy(t); + + cookie = NULL; + while ((slice = avl_destroy_nodes(&slice_cache, + &cookie)) != NULL) { + if (slice->rn_config != NULL) { + nvlist_t *config = slice->rn_config; boolean_t matched = B_TRUE; - if (poolname != NULL) { + if (iarg->poolname != NULL) { char *pname; matched = nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, &pname) == 0 && - strcmp(poolname, pname) == 0; - } else if (guid != 0) { + strcmp(iarg->poolname, pname) == 0; + } else if (iarg->guid != 0) { uint64_t this_guid; matched = nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &this_guid) == 0 && - guid == this_guid; + iarg->guid == this_guid; } if (!matched) { nvlist_free(config); @@ -907,17 +1246,20 @@ zpool_find_import_impl(libzfs_handle_t *hdl, int argc, char **argv, continue; } /* use the non-raw path for the config */ - (void) strlcpy(end, name, pathleft); + (void) strlcpy(end, slice->rn_name, pathleft); if (add_config(hdl, &pools, path, config) != 0) goto error; } + free(slice->rn_name); + free(slice); } + avl_destroy(&slice_cache); (void) closedir(dirp); dirp = NULL; } - ret = get_configs(hdl, &pools, active_ok); + ret = get_configs(hdl, &pools, iarg->can_be_active); error: for (pe = pools.pools; pe != NULL; pe = penext) { @@ -951,27 +1293,12 @@ error: nvlist_t * zpool_find_import(libzfs_handle_t *hdl, int argc, char **argv) { - return (zpool_find_import_impl(hdl, argc, argv, B_FALSE, NULL, 0)); -} + importargs_t iarg = { 0 }; -nvlist_t * -zpool_find_import_byname(libzfs_handle_t *hdl, int argc, char **argv, - char *pool) -{ - return (zpool_find_import_impl(hdl, argc, argv, B_FALSE, pool, 0)); -} + iarg.paths = argc; + iarg.path = argv; -nvlist_t * -zpool_find_import_byguid(libzfs_handle_t *hdl, int argc, char **argv, - uint64_t guid) -{ - return (zpool_find_import_impl(hdl, argc, argv, B_FALSE, NULL, guid)); -} - -nvlist_t * -zpool_find_import_activeok(libzfs_handle_t *hdl, int argc, char **argv) -{ - return (zpool_find_import_impl(hdl, argc, argv, B_TRUE, NULL, 0)); + return (zpool_find_import_impl(hdl, &iarg)); } /* @@ -1093,6 +1420,46 @@ zpool_find_import_cached(libzfs_handle_t *hdl, const char *cachefile, return (pools); } +static int +name_or_guid_exists(zpool_handle_t *zhp, void *data) +{ + importargs_t *import = data; + int found = 0; + + if (import->poolname != NULL) { + char *pool_name; + + verify(nvlist_lookup_string(zhp->zpool_config, + ZPOOL_CONFIG_POOL_NAME, &pool_name) == 0); + if (strcmp(pool_name, import->poolname) == 0) + found = 1; + } else { + uint64_t pool_guid; + + verify(nvlist_lookup_uint64(zhp->zpool_config, + ZPOOL_CONFIG_POOL_GUID, &pool_guid) == 0); + if (pool_guid == import->guid) + found = 1; + } + + zpool_close(zhp); + return (found); +} + +nvlist_t * +zpool_search_import(libzfs_handle_t *hdl, importargs_t *import) +{ + verify(import->poolname == NULL || import->guid == 0); + + if (import->unique) + import->exists = zpool_iter(hdl, name_or_guid_exists, import); + + if (import->cachefile != NULL) + return (zpool_find_import_cached(hdl, import->cachefile, + import->poolname, import->guid)); + + return (zpool_find_import_impl(hdl, import)); +} boolean_t find_guid(nvlist_t *nv, uint64_t guid) diff --git a/lib/libzfs/libzfs_mount.c b/lib/libzfs/libzfs_mount.c index 7810e5d68..0675ec229 100644 --- a/lib/libzfs/libzfs_mount.c +++ b/lib/libzfs/libzfs_mount.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -44,17 +43,14 @@ * * zfs_is_shared_nfs() * zfs_is_shared_smb() - * zfs_is_shared_iscsi() * zfs_share_proto() * zfs_shareall(); - * zfs_share_iscsi() * zfs_unshare_nfs() * zfs_unshare_smb() * zfs_unshareall_nfs() * zfs_unshareall_smb() * zfs_unshareall() * zfs_unshareall_bypath() - * zfs_unshare_iscsi() * * The following functions are available for pool consumers, and will * mount/unmount and share/unshare all datasets within pool: @@ -89,11 +85,6 @@ static int zfs_share_proto(zfs_handle_t *, zfs_share_proto_t *); zfs_share_type_t zfs_is_shared_proto(zfs_handle_t *, char **, zfs_share_proto_t); -static int (*iscsitgt_zfs_share)(const char *); -static int (*iscsitgt_zfs_unshare)(const char *); -static int (*iscsitgt_zfs_is_shared)(const char *); -static int (*iscsitgt_svc_online)(); - /* * The share protocols table must be in the same order as the zfs_share_prot_t * enum in libzfs_impl.h @@ -125,29 +116,6 @@ zfs_share_proto_t share_all_proto[] = { PROTO_END }; -#pragma init(zfs_iscsi_init) -static void -zfs_iscsi_init(void) -{ - void *libiscsitgt; - - if ((libiscsitgt = dlopen("/lib/libiscsitgt.so.1", - RTLD_LAZY | RTLD_GLOBAL)) == NULL || - (iscsitgt_zfs_share = (int (*)(const char *))dlsym(libiscsitgt, - "iscsitgt_zfs_share")) == NULL || - (iscsitgt_zfs_unshare = (int (*)(const char *))dlsym(libiscsitgt, - "iscsitgt_zfs_unshare")) == NULL || - (iscsitgt_zfs_is_shared = (int (*)(const char *))dlsym(libiscsitgt, - "iscsitgt_zfs_is_shared")) == NULL || - (iscsitgt_svc_online = (int (*)(const char *))dlsym(libiscsitgt, - "iscsitgt_svc_online")) == NULL) { - iscsitgt_zfs_share = NULL; - iscsitgt_zfs_unshare = NULL; - iscsitgt_zfs_is_shared = NULL; - iscsitgt_svc_online = NULL; - } -} - /* * Search the sharetab for the given mountpoint and protocol, returning * a zfs_share_type_t value. @@ -345,6 +313,18 @@ zfs_mount(zfs_handle_t *zhp, const char *options, int flags) } else if (errno == EPERM) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "Insufficient privileges")); + } else if (errno == ENOTSUP) { + char buf[256]; + int spa_version; + + VERIFY(zfs_spa_version(zhp, &spa_version) == 0); + (void) snprintf(buf, sizeof (buf), + dgettext(TEXT_DOMAIN, "Can't mount a version %lld " + "file system on a version %d pool. Pool must be" + " upgraded to mount this file system."), + (u_longlong_t)zfs_prop_get_int(zhp, + ZFS_PROP_VERSION), spa_version); + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, buf)); } else { zfs_error_aux(hdl, strerror(errno)); } @@ -445,7 +425,7 @@ zfs_is_shared(zfs_handle_t *zhp) zfs_share_proto_t *curr_proto; if (ZFS_IS_VOLUME(zhp)) - return (zfs_is_shared_iscsi(zhp)); + return (B_FALSE); for (curr_proto = share_all_proto; *curr_proto != PROTO_END; curr_proto++) @@ -458,7 +438,7 @@ int zfs_share(zfs_handle_t *zhp) { if (ZFS_IS_VOLUME(zhp)) - return (zfs_share_iscsi(zhp)); + return (0); return (zfs_share_proto(zhp, share_all_proto)); } @@ -467,7 +447,7 @@ int zfs_unshare(zfs_handle_t *zhp) { if (ZFS_IS_VOLUME(zhp)) - return (zfs_unshare_iscsi(zhp)); + return (0); return (zfs_unshareall(zhp)); } @@ -999,81 +979,6 @@ remove_mountpoint(zfs_handle_t *zhp) } } -boolean_t -zfs_is_shared_iscsi(zfs_handle_t *zhp) -{ - - /* - * If iscsi deamon isn't running then we aren't shared - */ - if (iscsitgt_svc_online && iscsitgt_svc_online() == 1) - return (B_FALSE); - else - return (iscsitgt_zfs_is_shared != NULL && - iscsitgt_zfs_is_shared(zhp->zfs_name) != 0); -} - -int -zfs_share_iscsi(zfs_handle_t *zhp) -{ - char shareopts[ZFS_MAXPROPLEN]; - const char *dataset = zhp->zfs_name; - libzfs_handle_t *hdl = zhp->zfs_hdl; - - /* - * Return success if there are no share options. - */ - if (zfs_prop_get(zhp, ZFS_PROP_SHAREISCSI, shareopts, - sizeof (shareopts), NULL, NULL, 0, B_FALSE) != 0 || - strcmp(shareopts, "off") == 0) - return (0); - - if (iscsitgt_zfs_share == NULL || iscsitgt_zfs_share(dataset) != 0) { - int error = EZFS_SHAREISCSIFAILED; - - /* - * If service isn't availabele and EPERM was - * returned then use special error. - */ - if (iscsitgt_svc_online && errno == EPERM && - (iscsitgt_svc_online() != 0)) - error = EZFS_ISCSISVCUNAVAIL; - - return (zfs_error_fmt(hdl, error, - dgettext(TEXT_DOMAIN, "cannot share '%s'"), dataset)); - } - - return (0); -} - -int -zfs_unshare_iscsi(zfs_handle_t *zhp) -{ - const char *dataset = zfs_get_name(zhp); - libzfs_handle_t *hdl = zhp->zfs_hdl; - - /* - * Return if the volume is not shared - */ - if (zfs_is_shared_iscsi(zhp) != SHARED_ISCSI) - return (0); - - /* - * If this fails with ENODEV it indicates that zvol wasn't shared so - * we should return success in that case. - */ - if (iscsitgt_zfs_unshare == NULL || - (iscsitgt_zfs_unshare(dataset) != 0 && errno != ENODEV)) { - if (errno == EPERM) - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "Insufficient privileges to unshare iscsi")); - return (zfs_error_fmt(hdl, EZFS_UNSHAREISCSIFAILED, - dgettext(TEXT_DOMAIN, "cannot unshare '%s'"), dataset)); - } - - return (0); -} - typedef struct mount_cbdata { zfs_handle_t **cb_datasets; int cb_used; @@ -1215,28 +1120,6 @@ out: return (ret); } - -static int -zvol_cb(const char *dataset, void *data) -{ - libzfs_handle_t *hdl = data; - zfs_handle_t *zhp; - - /* - * Ignore snapshots and ignore failures from non-existant datasets. - */ - if (strchr(dataset, '@') != NULL || - (zhp = zfs_open(hdl, dataset, ZFS_TYPE_VOLUME)) == NULL) - return (0); - - if (zfs_unshare_iscsi(zhp) != 0) - return (-1); - - zfs_close(zhp); - - return (0); -} - static int mountpoint_compare(const void *a, const void *b) { @@ -1246,6 +1129,8 @@ mountpoint_compare(const void *a, const void *b) return (strcmp(mountb, mounta)); } +/* alias for 2002/240 */ +#pragma weak zpool_unmount_datasets = zpool_disable_datasets /* * Unshare and unmount all datasets within the given pool. We don't want to * rely on traversing the DSL to discover the filesystems within the pool, @@ -1253,7 +1138,6 @@ mountpoint_compare(const void *a, const void *b) * arbitrarily (on I/O error, for example). Instead, we walk /etc/mnttab and * gather all the filesystems that are currently mounted. */ -#pragma weak zpool_unmount_datasets = zpool_disable_datasets int zpool_disable_datasets(zpool_handle_t *zhp, boolean_t force) { @@ -1267,12 +1151,6 @@ zpool_disable_datasets(zpool_handle_t *zhp, boolean_t force) int ret = -1; int flags = (force ? MS_FORCE : 0); - /* - * First unshare all zvols. - */ - if (zpool_iter_zvol(zhp, zvol_cb, hdl) != 0) - return (-1); - namelen = strlen(zhp->zpool_name); rewind(hdl->libzfs_mnttab); diff --git a/lib/libzfs/libzfs_pool.c b/lib/libzfs/libzfs_pool.c index fd734d8b4..7836e5873 100644 --- a/lib/libzfs/libzfs_pool.c +++ b/lib/libzfs/libzfs_pool.c @@ -20,33 +20,27 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ -#include <alloca.h> -#include <assert.h> #include <ctype.h> #include <errno.h> #include <devid.h> -#include <dirent.h> #include <fcntl.h> #include <libintl.h> #include <stdio.h> #include <stdlib.h> #include <strings.h> #include <unistd.h> -#include <zone.h> #include <sys/efi_partition.h> #include <sys/vtoc.h> #include <sys/zfs_ioctl.h> -#include <sys/zio.h> -#include <strings.h> #include <dlfcn.h> #include "zfs_namecheck.h" #include "zfs_prop.h" #include "libzfs_impl.h" +#include "zfs_comutil.h" static int read_efi_label(nvlist_t *config, diskaddr_t *sb); @@ -193,6 +187,8 @@ zpool_state_to_name(vdev_state_t state, vdev_aux_t aux) case VDEV_STATE_CANT_OPEN: if (aux == VDEV_AUX_CORRUPT_DATA || aux == VDEV_AUX_BAD_LOG) return (gettext("FAULTED")); + else if (aux == VDEV_AUX_SPLIT_POOL) + return (gettext("SPLIT")); else return (gettext("UNAVAIL")); case VDEV_STATE_FAULTED: @@ -273,8 +269,8 @@ zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, size_t len, switch (prop) { case ZPOOL_PROP_SIZE: - case ZPOOL_PROP_USED: - case ZPOOL_PROP_AVAILABLE: + case ZPOOL_PROP_ALLOCATED: + case ZPOOL_PROP_FREE: (void) zfs_nicenum(intval, buf, len); break; @@ -283,11 +279,18 @@ zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, size_t len, (u_longlong_t)intval); break; + case ZPOOL_PROP_DEDUPRATIO: + (void) snprintf(buf, len, "%llu.%02llux", + (u_longlong_t)(intval / 100), + (u_longlong_t)(intval % 100)); + break; + case ZPOOL_PROP_HEALTH: verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL), ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); verify(nvlist_lookup_uint64_array(nvroot, - ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0); + ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc) + == 0); (void) strlcpy(buf, zpool_state_to_name(intval, vs->vs_aux), len); @@ -1004,9 +1007,6 @@ zpool_destroy(zpool_handle_t *zhp) ZFS_TYPE_FILESYSTEM)) == NULL) return (-1); - if (zpool_remove_zvol_links(zhp) != 0) - return (-1); - (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_DESTROY, &zc) != 0) { @@ -1072,7 +1072,8 @@ zpool_add(zpool_handle_t *zhp, nvlist_t *nvroot) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "device '%s' contains an EFI label and " "cannot be used on root pools."), - zpool_vdev_name(hdl, NULL, spares[s])); + zpool_vdev_name(hdl, NULL, spares[s], + B_FALSE)); return (zfs_error(hdl, EZFS_POOL_NOTSUP, msg)); } } @@ -1167,9 +1168,6 @@ zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce) zfs_cmd_t zc = { 0 }; char msg[1024]; - if (zpool_remove_zvol_links(zhp) != 0) - return (-1); - (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, "cannot export '%s'"), zhp->zpool_name); @@ -1208,6 +1206,127 @@ zpool_export_force(zpool_handle_t *zhp) return (zpool_export_common(zhp, B_TRUE, B_TRUE)); } +static void +zpool_rewind_exclaim(libzfs_handle_t *hdl, const char *name, boolean_t dryrun, + nvlist_t *rbi) +{ + uint64_t rewindto; + int64_t loss = -1; + struct tm t; + char timestr[128]; + + if (!hdl->libzfs_printerr || rbi == NULL) + return; + + if (nvlist_lookup_uint64(rbi, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0) + return; + (void) nvlist_lookup_int64(rbi, ZPOOL_CONFIG_REWIND_TIME, &loss); + + if (localtime_r((time_t *)&rewindto, &t) != NULL && + strftime(timestr, 128, 0, &t) != 0) { + if (dryrun) { + (void) printf(dgettext(TEXT_DOMAIN, + "Would be able to return %s " + "to its state as of %s.\n"), + name, timestr); + } else { + (void) printf(dgettext(TEXT_DOMAIN, + "Pool %s returned to its state as of %s.\n"), + name, timestr); + } + if (loss > 120) { + (void) printf(dgettext(TEXT_DOMAIN, + "%s approximately %lld "), + dryrun ? "Would discard" : "Discarded", + (loss + 30) / 60); + (void) printf(dgettext(TEXT_DOMAIN, + "minutes of transactions.\n")); + } else if (loss > 0) { + (void) printf(dgettext(TEXT_DOMAIN, + "%s approximately %lld "), + dryrun ? "Would discard" : "Discarded", loss); + (void) printf(dgettext(TEXT_DOMAIN, + "seconds of transactions.\n")); + } + } +} + +void +zpool_explain_recover(libzfs_handle_t *hdl, const char *name, int reason, + nvlist_t *config) +{ + int64_t loss = -1; + uint64_t edata = UINT64_MAX; + uint64_t rewindto; + struct tm t; + char timestr[128]; + + if (!hdl->libzfs_printerr) + return; + + if (reason >= 0) + (void) printf(dgettext(TEXT_DOMAIN, "action: ")); + else + (void) printf(dgettext(TEXT_DOMAIN, "\t")); + + /* All attempted rewinds failed if ZPOOL_CONFIG_LOAD_TIME missing */ + if (nvlist_lookup_uint64(config, + ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0) + goto no_info; + + (void) nvlist_lookup_int64(config, ZPOOL_CONFIG_REWIND_TIME, &loss); + (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_LOAD_DATA_ERRORS, + &edata); + + (void) printf(dgettext(TEXT_DOMAIN, + "Recovery is possible, but will result in some data loss.\n")); + + if (localtime_r((time_t *)&rewindto, &t) != NULL && + strftime(timestr, 128, 0, &t) != 0) { + (void) printf(dgettext(TEXT_DOMAIN, + "\tReturning the pool to its state as of %s\n" + "\tshould correct the problem. "), + timestr); + } else { + (void) printf(dgettext(TEXT_DOMAIN, + "\tReverting the pool to an earlier state " + "should correct the problem.\n\t")); + } + + if (loss > 120) { + (void) printf(dgettext(TEXT_DOMAIN, + "Approximately %lld minutes of data\n" + "\tmust be discarded, irreversibly. "), (loss + 30) / 60); + } else if (loss > 0) { + (void) printf(dgettext(TEXT_DOMAIN, + "Approximately %lld seconds of data\n" + "\tmust be discarded, irreversibly. "), loss); + } + if (edata != 0 && edata != UINT64_MAX) { + if (edata == 1) { + (void) printf(dgettext(TEXT_DOMAIN, + "After rewind, at least\n" + "\tone persistent user-data error will remain. ")); + } else { + (void) printf(dgettext(TEXT_DOMAIN, + "After rewind, several\n" + "\tpersistent user-data errors will remain. ")); + } + } + (void) printf(dgettext(TEXT_DOMAIN, + "Recovery can be attempted\n\tby executing 'zpool %s -F %s'. "), + reason >= 0 ? "clear" : "import", name); + + (void) printf(dgettext(TEXT_DOMAIN, + "A scrub of the pool\n" + "\tis strongly recommended after recovery.\n")); + return; + +no_info: + (void) printf(dgettext(TEXT_DOMAIN, + "Destroy and re-create the pool from\n\ta backup source.\n")); +} + /* * zpool_import() is a contracted interface. Should be kept the same * if possible. @@ -1257,8 +1376,11 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, nvlist_t *props, boolean_t importfaulted) { zfs_cmd_t zc = { 0 }; + zpool_rewind_policy_t policy; + nvlist_t *nvi = NULL; char *thename; char *origname; + uint64_t returned_size; int ret; char errbuf[1024]; @@ -1302,11 +1424,30 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, nvlist_free(props); return (-1); } + returned_size = zc.zc_nvlist_conf_size + 512; + if (zcmd_alloc_dst_nvlist(hdl, &zc, returned_size) != 0) { + nvlist_free(props); + return (-1); + } zc.zc_cookie = (uint64_t)importfaulted; ret = 0; if (zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc) != 0) { char desc[1024]; + + (void) zcmd_read_dst_nvlist(hdl, &zc, &nvi); + zpool_get_rewind_policy(config, &policy); + /* + * Dry-run failed, but we print out what success + * looks like if we found a best txg + */ + if ((policy.zrp_request & ZPOOL_TRY_REWIND) && nvi) { + zpool_rewind_exclaim(hdl, newname ? origname : thename, + B_TRUE, nvi); + nvlist_free(nvi); + return (-1); + } + if (newname == NULL) (void) snprintf(desc, sizeof (desc), dgettext(TEXT_DOMAIN, "cannot import '%s'"), @@ -1328,8 +1469,19 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, (void) zfs_error(hdl, EZFS_INVALCONFIG, desc); break; + case EROFS: + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "one or more devices is read only")); + (void) zfs_error(hdl, EZFS_BADDEV, desc); + break; + default: + (void) zcmd_read_dst_nvlist(hdl, &zc, &nvi); (void) zpool_standard_error(hdl, errno, desc); + zpool_explain_recover(hdl, + newname ? origname : thename, -errno, nvi); + nvlist_free(nvi); + break; } ret = -1; @@ -1339,13 +1491,20 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, /* * This should never fail, but play it safe anyway. */ - if (zpool_open_silent(hdl, thename, &zhp) != 0) { + if (zpool_open_silent(hdl, thename, &zhp) != 0) ret = -1; - } else if (zhp != NULL) { - ret = zpool_create_zvol_links(zhp); + else if (zhp != NULL) zpool_close(zhp); + (void) zcmd_read_dst_nvlist(hdl, &zc, &nvi); + zpool_get_rewind_policy(config, &policy); + if (policy.zrp_request & + (ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) { + zpool_rewind_exclaim(hdl, newname ? origname : thename, + ((policy.zrp_request & ZPOOL_TRY_REWIND) != 0), + nvi); } - + nvlist_free(nvi); + return (0); } zcmd_free_nvlists(&zc); @@ -1355,28 +1514,83 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, } /* - * Scrub the pool. + * Scan the pool. */ int -zpool_scrub(zpool_handle_t *zhp, pool_scrub_type_t type) +zpool_scan(zpool_handle_t *zhp, pool_scan_func_t func) { zfs_cmd_t zc = { 0 }; char msg[1024]; libzfs_handle_t *hdl = zhp->zpool_hdl; (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); - zc.zc_cookie = type; + zc.zc_cookie = func; - if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SCRUB, &zc) == 0) + if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SCAN, &zc) == 0 || + (errno == ENOENT && func != POOL_SCAN_NONE)) return (0); - (void) snprintf(msg, sizeof (msg), - dgettext(TEXT_DOMAIN, "cannot scrub %s"), zc.zc_name); + if (func == POOL_SCAN_SCRUB) { + (void) snprintf(msg, sizeof (msg), + dgettext(TEXT_DOMAIN, "cannot scrub %s"), zc.zc_name); + } else if (func == POOL_SCAN_NONE) { + (void) snprintf(msg, sizeof (msg), + dgettext(TEXT_DOMAIN, "cannot cancel scrubbing %s"), + zc.zc_name); + } else { + assert(!"unexpected result"); + } - if (errno == EBUSY) - return (zfs_error(hdl, EZFS_RESILVERING, msg)); - else + if (errno == EBUSY) { + nvlist_t *nvroot; + pool_scan_stat_t *ps = NULL; + uint_t psc; + + verify(nvlist_lookup_nvlist(zhp->zpool_config, + ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); + (void) nvlist_lookup_uint64_array(nvroot, + ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &psc); + if (ps && ps->pss_func == POOL_SCAN_SCRUB) + return (zfs_error(hdl, EZFS_SCRUBBING, msg)); + else + return (zfs_error(hdl, EZFS_RESILVERING, msg)); + } else if (errno == ENOENT) { + return (zfs_error(hdl, EZFS_NO_SCRUB, msg)); + } else { return (zpool_standard_error(hdl, errno, msg)); + } +} + +/* + * This provides a very minimal check whether a given string is likely a + * c#t#d# style string. Users of this are expected to do their own + * verification of the s# part. + */ +#define CTD_CHECK(str) (str && str[0] == 'c' && isdigit(str[1])) + +/* + * More elaborate version for ones which may start with "/dev/dsk/" + * and the like. + */ +static int +ctd_check_path(char *str) { + /* + * If it starts with a slash, check the last component. + */ + if (str && str[0] == '/') { + char *tmp = strrchr(str, '/'); + + /* + * If it ends in "/old", check the second-to-last + * component of the string instead. + */ + if (tmp != str && strcmp(tmp, "/old") == 0) { + for (tmp--; *tmp != '/'; tmp--) + ; + } + str = tmp + 1; + } + return (CTD_CHECK(str)); } /* @@ -1433,25 +1647,99 @@ vdev_to_nvlist_iter(nvlist_t *nv, nvlist_t *search, boolean_t *avail_spare, break; /* - * Search for the requested value. We special case the search - * for ZPOOL_CONFIG_PATH when it's a wholedisk. Otherwise, - * all other searches are simple string compares. + * Search for the requested value. Special cases: + * + * - ZPOOL_CONFIG_PATH for whole disk entries. These end in + * "s0" or "s0/old". The "s0" part is hidden from the user, + * but included in the string, so this matches around it. + * - looking for a top-level vdev name (i.e. ZPOOL_CONFIG_TYPE). + * + * Otherwise, all other searches are simple string compares. */ - if (strcmp(srchkey, ZPOOL_CONFIG_PATH) == 0 && val) { + if (strcmp(srchkey, ZPOOL_CONFIG_PATH) == 0 && + ctd_check_path(val)) { uint64_t wholedisk = 0; (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &wholedisk); if (wholedisk) { + int slen = strlen(srchval); + int vlen = strlen(val); + + if (slen != vlen - 2) + break; + + /* + * make_leaf_vdev() should only set + * wholedisk for ZPOOL_CONFIG_PATHs which + * will include "/dev/dsk/", giving plenty of + * room for the indices used next. + */ + ASSERT(vlen >= 6); + /* - * For whole disks, the internal path has 's0', - * but the path passed in by the user doesn't. + * strings identical except trailing "s0" */ - if (strlen(srchval) == strlen(val) - 2 && - strncmp(srchval, val, strlen(srchval)) == 0) + if (strcmp(&val[vlen - 2], "s0") == 0 && + strncmp(srchval, val, slen) == 0) return (nv); + + /* + * strings identical except trailing "s0/old" + */ + if (strcmp(&val[vlen - 6], "s0/old") == 0 && + strcmp(&srchval[slen - 4], "/old") == 0 && + strncmp(srchval, val, slen - 4) == 0) + return (nv); + break; } + } else if (strcmp(srchkey, ZPOOL_CONFIG_TYPE) == 0 && val) { + char *type, *idx, *end, *p; + uint64_t id, vdev_id; + + /* + * Determine our vdev type, keeping in mind + * that the srchval is composed of a type and + * vdev id pair (i.e. mirror-4). + */ + if ((type = strdup(srchval)) == NULL) + return (NULL); + + if ((p = strrchr(type, '-')) == NULL) { + free(type); + break; + } + idx = p + 1; + *p = '\0'; + + /* + * If the types don't match then keep looking. + */ + if (strncmp(val, type, strlen(val)) != 0) { + free(type); + break; + } + + verify(strncmp(type, VDEV_TYPE_RAIDZ, + strlen(VDEV_TYPE_RAIDZ)) == 0 || + strncmp(type, VDEV_TYPE_MIRROR, + strlen(VDEV_TYPE_MIRROR)) == 0); + verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID, + &id) == 0); + + errno = 0; + vdev_id = strtoull(idx, &end, 10); + + free(type); + if (errno != 0) + return (NULL); + + /* + * Now verify that we have the correct vdev id. + */ + if (vdev_id == id) + return (nv); } /* @@ -1537,6 +1825,18 @@ zpool_find_vdev_by_physpath(zpool_handle_t *zhp, const char *ppath, return (ret); } +/* + * Determine if we have an "interior" top-level vdev (i.e mirror/raidz). + */ +boolean_t +zpool_vdev_is_interior(const char *name) +{ + if (strncmp(name, VDEV_TYPE_RAIDZ, strlen(VDEV_TYPE_RAIDZ)) == 0 || + strncmp(name, VDEV_TYPE_MIRROR, strlen(VDEV_TYPE_MIRROR)) == 0) + return (B_TRUE); + return (B_FALSE); +} + nvlist_t * zpool_find_vdev(zpool_handle_t *zhp, const char *path, boolean_t *avail_spare, boolean_t *l2cache, boolean_t *log) @@ -1551,6 +1851,8 @@ zpool_find_vdev(zpool_handle_t *zhp, const char *path, boolean_t *avail_spare, guid = strtoull(path, &end, 10); if (guid != 0 && *end == '\0') { verify(nvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid) == 0); + } else if (zpool_vdev_is_interior(path)) { + verify(nvlist_add_string(search, ZPOOL_CONFIG_TYPE, path) == 0); } else if (path[0] != '/') { (void) snprintf(buf, sizeof (buf), "%s%s", "/dev/dsk/", path); verify(nvlist_add_string(search, ZPOOL_CONFIG_PATH, buf) == 0); @@ -1721,34 +2023,6 @@ zpool_get_physpath(zpool_handle_t *zhp, char *physpath, size_t phypath_size) } /* - * Returns TRUE if the given guid corresponds to the given type. - * This is used to check for hot spares (INUSE or not), and level 2 cache - * devices. - */ -static boolean_t -is_guid_type(zpool_handle_t *zhp, uint64_t guid, const char *type) -{ - uint64_t target_guid; - nvlist_t *nvroot; - nvlist_t **list; - uint_t count; - int i; - - verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE, - &nvroot) == 0); - if (nvlist_lookup_nvlist_array(nvroot, type, &list, &count) == 0) { - for (i = 0; i < count; i++) { - verify(nvlist_lookup_uint64(list[i], ZPOOL_CONFIG_GUID, - &target_guid) == 0); - if (guid == target_guid) - return (B_TRUE); - } - } - - return (B_FALSE); -} - -/* * If the device has being dynamically expanded then we need to relabel * the disk to use the new unallocated space. */ @@ -1816,8 +2090,7 @@ zpool_vdev_online(zpool_handle_t *zhp, const char *path, int flags, verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); - if (avail_spare || - is_guid_type(zhp, zc.zc_guid, ZPOOL_CONFIG_SPARES) == B_TRUE) + if (avail_spare) return (zfs_error(hdl, EZFS_ISSPARE, msg)); if (flags & ZFS_ONLINE_EXPAND || @@ -1848,8 +2121,15 @@ zpool_vdev_online(zpool_handle_t *zhp, const char *path, int flags, zc.zc_cookie = VDEV_STATE_ONLINE; zc.zc_obj = flags; - if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) + if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) { + if (errno == EINVAL) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "was split " + "from this pool into a new one. Use '%s' " + "instead"), "zpool detach"); + return (zfs_error(hdl, EZFS_POSTSPLIT_ONLINE, msg)); + } return (zpool_standard_error(hdl, errno, msg)); + } *newstate = zc.zc_cookie; return (0); @@ -1877,8 +2157,7 @@ zpool_vdev_offline(zpool_handle_t *zhp, const char *path, boolean_t istmp) verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); - if (avail_spare || - is_guid_type(zhp, zc.zc_guid, ZPOOL_CONFIG_SPARES) == B_TRUE) + if (avail_spare) return (zfs_error(hdl, EZFS_ISSPARE, msg)); zc.zc_cookie = VDEV_STATE_OFFLINE; @@ -1910,7 +2189,7 @@ zpool_vdev_offline(zpool_handle_t *zhp, const char *path, boolean_t istmp) * Mark the given vdev faulted. */ int -zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid) +zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux) { zfs_cmd_t zc = { 0 }; char msg[1024]; @@ -1922,6 +2201,7 @@ zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid) (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); zc.zc_guid = guid; zc.zc_cookie = VDEV_STATE_FAULTED; + zc.zc_obj = aux; if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) return (0); @@ -1944,7 +2224,7 @@ zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid) * Mark the given vdev degraded. */ int -zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid) +zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux) { zfs_cmd_t zc = { 0 }; char msg[1024]; @@ -1956,6 +2236,7 @@ zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid) (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); zc.zc_guid = guid; zc.zc_cookie = VDEV_STATE_DEGRADED; + zc.zc_obj = aux; if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) return (0); @@ -2053,7 +2334,7 @@ zpool_vdev_attach(zpool_handle_t *zhp, verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL), ZPOOL_CONFIG_VDEV_TREE, &config_root) == 0); - if ((newname = zpool_vdev_name(NULL, NULL, child[0])) == NULL) + if ((newname = zpool_vdev_name(NULL, NULL, child[0], B_FALSE)) == NULL) return (-1); /* @@ -2241,6 +2522,257 @@ zpool_vdev_detach(zpool_handle_t *zhp, const char *path) } /* + * Find a mirror vdev in the source nvlist. + * + * The mchild array contains a list of disks in one of the top-level mirrors + * of the source pool. The schild array contains a list of disks that the + * user specified on the command line. We loop over the mchild array to + * see if any entry in the schild array matches. + * + * If a disk in the mchild array is found in the schild array, we return + * the index of that entry. Otherwise we return -1. + */ +static int +find_vdev_entry(zpool_handle_t *zhp, nvlist_t **mchild, uint_t mchildren, + nvlist_t **schild, uint_t schildren) +{ + uint_t mc; + + for (mc = 0; mc < mchildren; mc++) { + uint_t sc; + char *mpath = zpool_vdev_name(zhp->zpool_hdl, zhp, + mchild[mc], B_FALSE); + + for (sc = 0; sc < schildren; sc++) { + char *spath = zpool_vdev_name(zhp->zpool_hdl, zhp, + schild[sc], B_FALSE); + boolean_t result = (strcmp(mpath, spath) == 0); + + free(spath); + if (result) { + free(mpath); + return (mc); + } + } + + free(mpath); + } + + return (-1); +} + +/* + * Split a mirror pool. If newroot points to null, then a new nvlist + * is generated and it is the responsibility of the caller to free it. + */ +int +zpool_vdev_split(zpool_handle_t *zhp, char *newname, nvlist_t **newroot, + nvlist_t *props, splitflags_t flags) +{ + zfs_cmd_t zc = { 0 }; + char msg[1024]; + nvlist_t *tree, *config, **child, **newchild, *newconfig = NULL; + nvlist_t **varray = NULL, *zc_props = NULL; + uint_t c, children, newchildren, lastlog = 0, vcount, found = 0; + libzfs_handle_t *hdl = zhp->zpool_hdl; + uint64_t vers; + boolean_t freelist = B_FALSE, memory_err = B_TRUE; + int retval = 0; + + (void) snprintf(msg, sizeof (msg), + dgettext(TEXT_DOMAIN, "Unable to split %s"), zhp->zpool_name); + + if (!zpool_name_valid(hdl, B_FALSE, newname)) + return (zfs_error(hdl, EZFS_INVALIDNAME, msg)); + + if ((config = zpool_get_config(zhp, NULL)) == NULL) { + (void) fprintf(stderr, gettext("Internal error: unable to " + "retrieve pool configuration\n")); + return (-1); + } + + verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &tree) + == 0); + verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &vers) == 0); + + if (props) { + if ((zc_props = zpool_valid_proplist(hdl, zhp->zpool_name, + props, vers, B_TRUE, msg)) == NULL) + return (-1); + } + + if (nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child, + &children) != 0) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "Source pool is missing vdev tree")); + if (zc_props) + nvlist_free(zc_props); + return (-1); + } + + varray = zfs_alloc(hdl, children * sizeof (nvlist_t *)); + vcount = 0; + + if (*newroot == NULL || + nvlist_lookup_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, + &newchild, &newchildren) != 0) + newchildren = 0; + + for (c = 0; c < children; c++) { + uint64_t is_log = B_FALSE, is_hole = B_FALSE; + char *type; + nvlist_t **mchild, *vdev; + uint_t mchildren; + int entry; + + /* + * Unlike cache & spares, slogs are stored in the + * ZPOOL_CONFIG_CHILDREN array. We filter them out here. + */ + (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG, + &is_log); + (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE, + &is_hole); + if (is_log || is_hole) { + /* + * Create a hole vdev and put it in the config. + */ + if (nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) != 0) + goto out; + if (nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE, + VDEV_TYPE_HOLE) != 0) + goto out; + if (nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_HOLE, + 1) != 0) + goto out; + if (lastlog == 0) + lastlog = vcount; + varray[vcount++] = vdev; + continue; + } + lastlog = 0; + verify(nvlist_lookup_string(child[c], ZPOOL_CONFIG_TYPE, &type) + == 0); + if (strcmp(type, VDEV_TYPE_MIRROR) != 0) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "Source pool must be composed only of mirrors\n")); + retval = zfs_error(hdl, EZFS_INVALCONFIG, msg); + goto out; + } + + verify(nvlist_lookup_nvlist_array(child[c], + ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0); + + /* find or add an entry for this top-level vdev */ + if (newchildren > 0 && + (entry = find_vdev_entry(zhp, mchild, mchildren, + newchild, newchildren)) >= 0) { + /* We found a disk that the user specified. */ + vdev = mchild[entry]; + ++found; + } else { + /* User didn't specify a disk for this vdev. */ + vdev = mchild[mchildren - 1]; + } + + if (nvlist_dup(vdev, &varray[vcount++], 0) != 0) + goto out; + } + + /* did we find every disk the user specified? */ + if (found != newchildren) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "Device list must " + "include at most one disk from each mirror")); + retval = zfs_error(hdl, EZFS_INVALCONFIG, msg); + goto out; + } + + /* Prepare the nvlist for populating. */ + if (*newroot == NULL) { + if (nvlist_alloc(newroot, NV_UNIQUE_NAME, 0) != 0) + goto out; + freelist = B_TRUE; + if (nvlist_add_string(*newroot, ZPOOL_CONFIG_TYPE, + VDEV_TYPE_ROOT) != 0) + goto out; + } else { + verify(nvlist_remove_all(*newroot, ZPOOL_CONFIG_CHILDREN) == 0); + } + + /* Add all the children we found */ + if (nvlist_add_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, varray, + lastlog == 0 ? vcount : lastlog) != 0) + goto out; + + /* + * If we're just doing a dry run, exit now with success. + */ + if (flags.dryrun) { + memory_err = B_FALSE; + freelist = B_FALSE; + goto out; + } + + /* now build up the config list & call the ioctl */ + if (nvlist_alloc(&newconfig, NV_UNIQUE_NAME, 0) != 0) + goto out; + + if (nvlist_add_nvlist(newconfig, + ZPOOL_CONFIG_VDEV_TREE, *newroot) != 0 || + nvlist_add_string(newconfig, + ZPOOL_CONFIG_POOL_NAME, newname) != 0 || + nvlist_add_uint64(newconfig, ZPOOL_CONFIG_VERSION, vers) != 0) + goto out; + + /* + * The new pool is automatically part of the namespace unless we + * explicitly export it. + */ + if (!flags.import) + zc.zc_cookie = ZPOOL_EXPORT_AFTER_SPLIT; + (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); + (void) strlcpy(zc.zc_string, newname, sizeof (zc.zc_string)); + if (zcmd_write_conf_nvlist(hdl, &zc, newconfig) != 0) + goto out; + if (zc_props != NULL && zcmd_write_src_nvlist(hdl, &zc, zc_props) != 0) + goto out; + + if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SPLIT, &zc) != 0) { + retval = zpool_standard_error(hdl, errno, msg); + goto out; + } + + freelist = B_FALSE; + memory_err = B_FALSE; + +out: + if (varray != NULL) { + int v; + + for (v = 0; v < vcount; v++) + nvlist_free(varray[v]); + free(varray); + } + zcmd_free_nvlists(&zc); + if (zc_props) + nvlist_free(zc_props); + if (newconfig) + nvlist_free(newconfig); + if (freelist) { + nvlist_free(*newroot); + *newroot = NULL; + } + + if (retval != 0) + return (retval); + + if (memory_err) + return (no_memory(hdl)); + + return (0); +} + +/* * Remove the given device. Currently, this is supported only for hot spares * and level 2 cache devices. */ @@ -2250,24 +2782,34 @@ zpool_vdev_remove(zpool_handle_t *zhp, const char *path) zfs_cmd_t zc = { 0 }; char msg[1024]; nvlist_t *tgt; - boolean_t avail_spare, l2cache; + boolean_t avail_spare, l2cache, islog; libzfs_handle_t *hdl = zhp->zpool_hdl; + uint64_t version; (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, "cannot remove %s"), path); (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, - NULL)) == 0) + &islog)) == 0) return (zfs_error(hdl, EZFS_NODEVICE, msg)); - - if (!avail_spare && !l2cache) { + /* + * XXX - this should just go away. + */ + if (!avail_spare && !l2cache && !islog) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "only inactive hot spares or cache devices " - "can be removed")); + "only inactive hot spares, cache, top-level, " + "or log devices can be removed")); return (zfs_error(hdl, EZFS_NODEVICE, msg)); } + version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL); + if (islog && version < SPA_VERSION_HOLES) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "pool must be upgrade to support log removal")); + return (zfs_error(hdl, EZFS_BADVERSION, msg)); + } + verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0) @@ -2280,13 +2822,15 @@ zpool_vdev_remove(zpool_handle_t *zhp, const char *path) * Clear the errors for the pool, or the particular device if specified. */ int -zpool_clear(zpool_handle_t *zhp, const char *path) +zpool_clear(zpool_handle_t *zhp, const char *path, nvlist_t *rewindnvl) { zfs_cmd_t zc = { 0 }; char msg[1024]; nvlist_t *tgt; + zpool_rewind_policy_t policy; boolean_t avail_spare, l2cache; libzfs_handle_t *hdl = zhp->zpool_hdl; + nvlist_t *nvi = NULL; if (path) (void) snprintf(msg, sizeof (msg), @@ -2314,9 +2858,31 @@ zpool_clear(zpool_handle_t *zhp, const char *path) &zc.zc_guid) == 0); } - if (zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc) == 0) + zpool_get_rewind_policy(rewindnvl, &policy); + zc.zc_cookie = policy.zrp_request; + + if (zcmd_alloc_dst_nvlist(hdl, &zc, 8192) != 0) + return (-1); + + if (zcmd_write_src_nvlist(zhp->zpool_hdl, &zc, rewindnvl) != 0) + return (-1); + + if (zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc) == 0 || + ((policy.zrp_request & ZPOOL_TRY_REWIND) && + errno != EPERM && errno != EACCES)) { + if (policy.zrp_request & + (ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) { + (void) zcmd_read_dst_nvlist(hdl, &zc, &nvi); + zpool_rewind_exclaim(hdl, zc.zc_name, + ((policy.zrp_request & ZPOOL_TRY_REWIND) != 0), + nvi); + nvlist_free(nvi); + } + zcmd_free_nvlists(&zc); return (0); + } + zcmd_free_nvlists(&zc); return (zpool_standard_error(hdl, errno, msg)); } @@ -2336,6 +2902,7 @@ zpool_vdev_clear(zpool_handle_t *zhp, uint64_t guid) (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); zc.zc_guid = guid; + zc.zc_cookie = ZPOOL_NO_REWIND; if (ioctl(hdl->libzfs_fd, ZFS_IOC_CLEAR, &zc) == 0) return (0); @@ -2344,173 +2911,6 @@ zpool_vdev_clear(zpool_handle_t *zhp, uint64_t guid) } /* - * Iterate over all zvols in a given pool by walking the /dev/zvol/dsk/<pool> - * hierarchy. - */ -int -zpool_iter_zvol(zpool_handle_t *zhp, int (*cb)(const char *, void *), - void *data) -{ - libzfs_handle_t *hdl = zhp->zpool_hdl; - char (*paths)[MAXPATHLEN]; - size_t size = 4; - int curr, fd, base, ret = 0; - DIR *dirp; - struct dirent *dp; - struct stat st; - - if ((base = open("/dev/zvol/dsk", O_RDONLY)) < 0) - return (errno == ENOENT ? 0 : -1); - - if (fstatat(base, zhp->zpool_name, &st, 0) != 0) { - int err = errno; - (void) close(base); - return (err == ENOENT ? 0 : -1); - } - - /* - * Oddly this wasn't a directory -- ignore that failure since we - * know there are no links lower in the (non-existant) hierarchy. - */ - if (!S_ISDIR(st.st_mode)) { - (void) close(base); - return (0); - } - - if ((paths = zfs_alloc(hdl, size * sizeof (paths[0]))) == NULL) { - (void) close(base); - return (-1); - } - - (void) strlcpy(paths[0], zhp->zpool_name, sizeof (paths[0])); - curr = 0; - - while (curr >= 0) { - if (fstatat(base, paths[curr], &st, AT_SYMLINK_NOFOLLOW) != 0) - goto err; - - if (S_ISDIR(st.st_mode)) { - if ((fd = openat(base, paths[curr], O_RDONLY)) < 0) - goto err; - - if ((dirp = fdopendir(fd)) == NULL) { - (void) close(fd); - goto err; - } - - while ((dp = readdir(dirp)) != NULL) { - if (dp->d_name[0] == '.') - continue; - - if (curr + 1 == size) { - paths = zfs_realloc(hdl, paths, - size * sizeof (paths[0]), - size * 2 * sizeof (paths[0])); - if (paths == NULL) { - (void) closedir(dirp); - (void) close(fd); - goto err; - } - - size *= 2; - } - - (void) strlcpy(paths[curr + 1], paths[curr], - sizeof (paths[curr + 1])); - (void) strlcat(paths[curr], "/", - sizeof (paths[curr])); - (void) strlcat(paths[curr], dp->d_name, - sizeof (paths[curr])); - curr++; - } - - (void) closedir(dirp); - - } else { - if ((ret = cb(paths[curr], data)) != 0) - break; - } - - curr--; - } - - free(paths); - (void) close(base); - - return (ret); - -err: - free(paths); - (void) close(base); - return (-1); -} - -typedef struct zvol_cb { - zpool_handle_t *zcb_pool; - boolean_t zcb_create; -} zvol_cb_t; - -/*ARGSUSED*/ -static int -do_zvol_create(zfs_handle_t *zhp, void *data) -{ - int ret = 0; - - if (ZFS_IS_VOLUME(zhp)) { - (void) zvol_create_link(zhp->zfs_hdl, zhp->zfs_name); - ret = zfs_iter_snapshots(zhp, do_zvol_create, NULL); - } - - if (ret == 0) - ret = zfs_iter_filesystems(zhp, do_zvol_create, NULL); - - zfs_close(zhp); - - return (ret); -} - -/* - * Iterate over all zvols in the pool and make any necessary minor nodes. - */ -int -zpool_create_zvol_links(zpool_handle_t *zhp) -{ - zfs_handle_t *zfp; - int ret; - - /* - * If the pool is unavailable, just return success. - */ - if ((zfp = make_dataset_handle(zhp->zpool_hdl, - zhp->zpool_name)) == NULL) - return (0); - - ret = zfs_iter_filesystems(zfp, do_zvol_create, NULL); - - zfs_close(zfp); - return (ret); -} - -static int -do_zvol_remove(const char *dataset, void *data) -{ - zpool_handle_t *zhp = data; - - return (zvol_remove_link(zhp->zpool_hdl, dataset)); -} - -/* - * Iterate over all zvols in the pool and remove any minor nodes. We iterate - * by examining the /dev links so that a corrupted pool doesn't impede this - * operation. - */ -int -zpool_remove_zvol_links(zpool_handle_t *zhp) -{ - return (zpool_iter_zvol(zhp, do_zvol_remove, zhp)); -} - -/* * Convert from a devid string to a path. */ static char * @@ -2602,7 +3002,8 @@ set_path(zpool_handle_t *zhp, nvlist_t *nv, const char *path) * of these checks. */ char * -zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv) +zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv, + boolean_t verbose) { char *path, *devid; uint64_t value; @@ -2625,7 +3026,7 @@ zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv) * open a misbehaving device, which can have undesirable * effects. */ - if ((nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, + if ((nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc) != 0 || vs->vs_state >= VDEV_STATE_DEGRADED) && zhp != NULL && @@ -2662,10 +3063,23 @@ zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv) if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &value) == 0 && value) { + int pathlen = strlen(path); char *tmp = zfs_strdup(hdl, path); - if (tmp == NULL) - return (NULL); - tmp[strlen(path) - 2] = '\0'; + + /* + * If it starts with c#, and ends with "s0", chop + * the "s0" off, or if it ends with "s0/old", remove + * the "s0" from the middle. + */ + if (CTD_CHECK(tmp)) { + if (strcmp(&tmp[pathlen - 2], "s0") == 0) { + tmp[pathlen - 2] = '\0'; + } else if (pathlen > 6 && + strcmp(&tmp[pathlen - 6], "s0/old") == 0) { + (void) strcpy(&tmp[pathlen - 6], + "/old"); + } + } return (tmp); } } else { @@ -2681,6 +3095,20 @@ zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv) (u_longlong_t)value); path = buf; } + + /* + * We identify each top-level vdev by using a <type-id> + * naming convention. + */ + if (verbose) { + uint64_t id; + + verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID, + &id) == 0); + (void) snprintf(buf, sizeof (buf), "%s-%llu", path, + (u_longlong_t)id); + path = buf; + } } return (zfs_strdup(hdl, path)); @@ -2899,7 +3327,7 @@ get_history(zpool_handle_t *zhp, char *buf, uint64_t *off, uint64_t *len) * into 'records'. 'leftover' is set to the number of bytes that weren't * processed as there wasn't a complete record. */ -static int +int zpool_history_unpack(char *buf, uint64_t bytes_read, uint64_t *leftover, nvlist_t ***records, uint_t *numrecords) { @@ -3218,6 +3646,7 @@ supported_dump_vdev_type(libzfs_handle_t *hdl, nvlist_t *config, char *errbuf) if (strcmp(type, VDEV_TYPE_RAIDZ) == 0 || strcmp(type, VDEV_TYPE_FILE) == 0 || strcmp(type, VDEV_TYPE_LOG) == 0 || + strcmp(type, VDEV_TYPE_HOLE) == 0 || strcmp(type, VDEV_TYPE_MISSING) == 0) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "vdev type '%s' is not supported"), type); diff --git a/lib/libzfs/libzfs_sendrecv.c b/lib/libzfs/libzfs_sendrecv.c index 1ffb6294c..672e004ef 100644 --- a/lib/libzfs/libzfs_sendrecv.c +++ b/lib/libzfs/libzfs_sendrecv.c @@ -20,14 +20,12 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <assert.h> #include <ctype.h> #include <errno.h> -#include <libdevinfo.h> #include <libintl.h> #include <stdio.h> #include <stdlib.h> @@ -36,21 +34,394 @@ #include <stddef.h> #include <fcntl.h> #include <sys/mount.h> -#include <sys/mntent.h> -#include <sys/mnttab.h> -#include <sys/avl.h> -#include <stddef.h> +#include <pthread.h> +#include <umem.h> #include <libzfs.h> #include "zfs_namecheck.h" #include "zfs_prop.h" +#include "zfs_fletcher.h" #include "libzfs_impl.h" +#include <sha2.h> +#include <sys/zio_checksum.h> +#include <sys/ddt.h> -#include <fletcher.c> /* XXX */ +/* in libzfs_dataset.c */ +extern void zfs_setprop_error(libzfs_handle_t *, zfs_prop_t, int, char *); static int zfs_receive_impl(libzfs_handle_t *, const char *, recvflags_t, - int, avl_tree_t *, char **); + int, const char *, nvlist_t *, avl_tree_t *, char **); + +static const zio_cksum_t zero_cksum = { 0 }; + +typedef struct dedup_arg { + int inputfd; + int outputfd; + libzfs_handle_t *dedup_hdl; +} dedup_arg_t; + +typedef struct dataref { + uint64_t ref_guid; + uint64_t ref_object; + uint64_t ref_offset; +} dataref_t; + +typedef struct dedup_entry { + struct dedup_entry *dde_next; + zio_cksum_t dde_chksum; + uint64_t dde_prop; + dataref_t dde_ref; +} dedup_entry_t; + +#define MAX_DDT_PHYSMEM_PERCENT 20 +#define SMALLEST_POSSIBLE_MAX_DDT_MB 128 + +typedef struct dedup_table { + dedup_entry_t **dedup_hash_array; + umem_cache_t *ddecache; + uint64_t max_ddt_size; /* max dedup table size in bytes */ + uint64_t cur_ddt_size; /* current dedup table size in bytes */ + uint64_t ddt_count; + int numhashbits; + boolean_t ddt_full; +} dedup_table_t; + +static int +high_order_bit(uint64_t n) +{ + int count; + + for (count = 0; n != 0; count++) + n >>= 1; + return (count); +} + +static size_t +ssread(void *buf, size_t len, FILE *stream) +{ + size_t outlen; + + if ((outlen = fread(buf, len, 1, stream)) == 0) + return (0); + + return (outlen); +} + +static void +ddt_hash_append(libzfs_handle_t *hdl, dedup_table_t *ddt, dedup_entry_t **ddepp, + zio_cksum_t *cs, uint64_t prop, dataref_t *dr) +{ + dedup_entry_t *dde; + + if (ddt->cur_ddt_size >= ddt->max_ddt_size) { + if (ddt->ddt_full == B_FALSE) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "Dedup table full. Deduplication will continue " + "with existing table entries")); + ddt->ddt_full = B_TRUE; + } + return; + } + + if ((dde = umem_cache_alloc(ddt->ddecache, UMEM_DEFAULT)) + != NULL) { + assert(*ddepp == NULL); + dde->dde_next = NULL; + dde->dde_chksum = *cs; + dde->dde_prop = prop; + dde->dde_ref = *dr; + *ddepp = dde; + ddt->cur_ddt_size += sizeof (dedup_entry_t); + ddt->ddt_count++; + } +} + +/* + * Using the specified dedup table, do a lookup for an entry with + * the checksum cs. If found, return the block's reference info + * in *dr. Otherwise, insert a new entry in the dedup table, using + * the reference information specified by *dr. + * + * return value: true - entry was found + * false - entry was not found + */ +static boolean_t +ddt_update(libzfs_handle_t *hdl, dedup_table_t *ddt, zio_cksum_t *cs, + uint64_t prop, dataref_t *dr) +{ + uint32_t hashcode; + dedup_entry_t **ddepp; + + hashcode = BF64_GET(cs->zc_word[0], 0, ddt->numhashbits); + + for (ddepp = &(ddt->dedup_hash_array[hashcode]); *ddepp != NULL; + ddepp = &((*ddepp)->dde_next)) { + if (ZIO_CHECKSUM_EQUAL(((*ddepp)->dde_chksum), *cs) && + (*ddepp)->dde_prop == prop) { + *dr = (*ddepp)->dde_ref; + return (B_TRUE); + } + } + ddt_hash_append(hdl, ddt, ddepp, cs, prop, dr); + return (B_FALSE); +} + +static int +cksum_and_write(const void *buf, uint64_t len, zio_cksum_t *zc, int outfd) +{ + fletcher_4_incremental_native(buf, len, zc); + return (write(outfd, buf, len)); +} + +/* + * This function is started in a separate thread when the dedup option + * has been requested. The main send thread determines the list of + * snapshots to be included in the send stream and makes the ioctl calls + * for each one. But instead of having the ioctl send the output to the + * the output fd specified by the caller of zfs_send()), the + * ioctl is told to direct the output to a pipe, which is read by the + * alternate thread running THIS function. This function does the + * dedup'ing by: + * 1. building a dedup table (the DDT) + * 2. doing checksums on each data block and inserting a record in the DDT + * 3. looking for matching checksums, and + * 4. sending a DRR_WRITE_BYREF record instead of a write record whenever + * a duplicate block is found. + * The output of this function then goes to the output fd requested + * by the caller of zfs_send(). + */ +static void * +cksummer(void *arg) +{ + dedup_arg_t *dda = arg; + char *buf = malloc(1<<20); + dmu_replay_record_t thedrr; + dmu_replay_record_t *drr = &thedrr; + struct drr_begin *drrb = &thedrr.drr_u.drr_begin; + struct drr_end *drre = &thedrr.drr_u.drr_end; + struct drr_object *drro = &thedrr.drr_u.drr_object; + struct drr_write *drrw = &thedrr.drr_u.drr_write; + struct drr_spill *drrs = &thedrr.drr_u.drr_spill; + FILE *ofp; + int outfd; + dmu_replay_record_t wbr_drr = {0}; + struct drr_write_byref *wbr_drrr = &wbr_drr.drr_u.drr_write_byref; + dedup_table_t ddt; + zio_cksum_t stream_cksum; + uint64_t physmem = sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGESIZE); + uint64_t numbuckets; + + ddt.max_ddt_size = + MAX((physmem * MAX_DDT_PHYSMEM_PERCENT)/100, + SMALLEST_POSSIBLE_MAX_DDT_MB<<20); + + numbuckets = ddt.max_ddt_size/(sizeof (dedup_entry_t)); + + /* + * numbuckets must be a power of 2. Increase number to + * a power of 2 if necessary. + */ + if (!ISP2(numbuckets)) + numbuckets = 1 << high_order_bit(numbuckets); + + ddt.dedup_hash_array = calloc(numbuckets, sizeof (dedup_entry_t *)); + ddt.ddecache = umem_cache_create("dde", sizeof (dedup_entry_t), 0, + NULL, NULL, NULL, NULL, NULL, 0); + ddt.cur_ddt_size = numbuckets * sizeof (dedup_entry_t *); + ddt.numhashbits = high_order_bit(numbuckets) - 1; + ddt.ddt_full = B_FALSE; + + /* Initialize the write-by-reference block. */ + wbr_drr.drr_type = DRR_WRITE_BYREF; + wbr_drr.drr_payloadlen = 0; + + outfd = dda->outputfd; + ofp = fdopen(dda->inputfd, "r"); + while (ssread(drr, sizeof (dmu_replay_record_t), ofp) != 0) { + + switch (drr->drr_type) { + case DRR_BEGIN: + { + int fflags; + ZIO_SET_CHECKSUM(&stream_cksum, 0, 0, 0, 0); + + /* set the DEDUP feature flag for this stream */ + fflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); + fflags |= (DMU_BACKUP_FEATURE_DEDUP | + DMU_BACKUP_FEATURE_DEDUPPROPS); + DMU_SET_FEATUREFLAGS(drrb->drr_versioninfo, fflags); + + if (cksum_and_write(drr, sizeof (dmu_replay_record_t), + &stream_cksum, outfd) == -1) + goto out; + if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == + DMU_COMPOUNDSTREAM && drr->drr_payloadlen != 0) { + int sz = drr->drr_payloadlen; + + if (sz > 1<<20) { + free(buf); + buf = malloc(sz); + } + (void) ssread(buf, sz, ofp); + if (ferror(stdin)) + perror("fread"); + if (cksum_and_write(buf, sz, &stream_cksum, + outfd) == -1) + goto out; + } + break; + } + + case DRR_END: + { + /* use the recalculated checksum */ + ZIO_SET_CHECKSUM(&drre->drr_checksum, + stream_cksum.zc_word[0], stream_cksum.zc_word[1], + stream_cksum.zc_word[2], stream_cksum.zc_word[3]); + if ((write(outfd, drr, + sizeof (dmu_replay_record_t))) == -1) + goto out; + break; + } + + case DRR_OBJECT: + { + if (cksum_and_write(drr, sizeof (dmu_replay_record_t), + &stream_cksum, outfd) == -1) + goto out; + if (drro->drr_bonuslen > 0) { + (void) ssread(buf, + P2ROUNDUP((uint64_t)drro->drr_bonuslen, 8), + ofp); + if (cksum_and_write(buf, + P2ROUNDUP((uint64_t)drro->drr_bonuslen, 8), + &stream_cksum, outfd) == -1) + goto out; + } + break; + } + + case DRR_SPILL: + { + if (cksum_and_write(drr, sizeof (dmu_replay_record_t), + &stream_cksum, outfd) == -1) + goto out; + (void) ssread(buf, drrs->drr_length, ofp); + if (cksum_and_write(buf, drrs->drr_length, + &stream_cksum, outfd) == -1) + goto out; + break; + } + + case DRR_FREEOBJECTS: + { + if (cksum_and_write(drr, sizeof (dmu_replay_record_t), + &stream_cksum, outfd) == -1) + goto out; + break; + } + + case DRR_WRITE: + { + dataref_t dataref; + + (void) ssread(buf, drrw->drr_length, ofp); + + /* + * Use the existing checksum if it's dedup-capable, + * else calculate a SHA256 checksum for it. + */ + + if (ZIO_CHECKSUM_EQUAL(drrw->drr_key.ddk_cksum, + zero_cksum) || + !DRR_IS_DEDUP_CAPABLE(drrw->drr_checksumflags)) { + SHA256_CTX ctx; + zio_cksum_t tmpsha256; + + SHA256Init(&ctx); + SHA256Update(&ctx, buf, drrw->drr_length); + SHA256Final(&tmpsha256, &ctx); + drrw->drr_key.ddk_cksum.zc_word[0] = + BE_64(tmpsha256.zc_word[0]); + drrw->drr_key.ddk_cksum.zc_word[1] = + BE_64(tmpsha256.zc_word[1]); + drrw->drr_key.ddk_cksum.zc_word[2] = + BE_64(tmpsha256.zc_word[2]); + drrw->drr_key.ddk_cksum.zc_word[3] = + BE_64(tmpsha256.zc_word[3]); + drrw->drr_checksumtype = ZIO_CHECKSUM_SHA256; + drrw->drr_checksumflags = DRR_CHECKSUM_DEDUP; + } + + dataref.ref_guid = drrw->drr_toguid; + dataref.ref_object = drrw->drr_object; + dataref.ref_offset = drrw->drr_offset; + + if (ddt_update(dda->dedup_hdl, &ddt, + &drrw->drr_key.ddk_cksum, drrw->drr_key.ddk_prop, + &dataref)) { + /* block already present in stream */ + wbr_drrr->drr_object = drrw->drr_object; + wbr_drrr->drr_offset = drrw->drr_offset; + wbr_drrr->drr_length = drrw->drr_length; + wbr_drrr->drr_toguid = drrw->drr_toguid; + wbr_drrr->drr_refguid = dataref.ref_guid; + wbr_drrr->drr_refobject = + dataref.ref_object; + wbr_drrr->drr_refoffset = + dataref.ref_offset; + + wbr_drrr->drr_checksumtype = + drrw->drr_checksumtype; + wbr_drrr->drr_checksumflags = + drrw->drr_checksumtype; + wbr_drrr->drr_key.ddk_cksum = + drrw->drr_key.ddk_cksum; + wbr_drrr->drr_key.ddk_prop = + drrw->drr_key.ddk_prop; + + if (cksum_and_write(&wbr_drr, + sizeof (dmu_replay_record_t), &stream_cksum, + outfd) == -1) + goto out; + } else { + /* block not previously seen */ + if (cksum_and_write(drr, + sizeof (dmu_replay_record_t), &stream_cksum, + outfd) == -1) + goto out; + if (cksum_and_write(buf, + drrw->drr_length, + &stream_cksum, outfd) == -1) + goto out; + } + break; + } + + case DRR_FREE: + { + if (cksum_and_write(drr, sizeof (dmu_replay_record_t), + &stream_cksum, outfd) == -1) + goto out; + break; + } + + default: + (void) printf("INVALID record type 0x%x\n", + drr->drr_type); + /* should never happen, so assert */ + assert(B_FALSE); + } + } +out: + umem_cache_destroy(ddt.ddecache); + free(ddt.dedup_hash_array); + free(buf); + (void) fclose(ofp); + + return (NULL); +} /* * Routines for dealing with the AVL tree of fs-nvlists @@ -173,6 +544,7 @@ typedef struct send_data { nvlist_t *snapprops; const char *fromsnap; const char *tosnap; + boolean_t recursive; /* * The header nvlist is of the following format: @@ -240,27 +612,50 @@ send_iterate_prop(zfs_handle_t *zhp, nvlist_t *nv) zfs_prop_t prop = zfs_name_to_prop(propname); nvlist_t *propnv; - assert(zfs_prop_user(propname) || prop != ZPROP_INVAL); + if (!zfs_prop_user(propname)) { + /* + * Realistically, this should never happen. However, + * we want the ability to add DSL properties without + * needing to make incompatible version changes. We + * need to ignore unknown properties to allow older + * software to still send datasets containing these + * properties, with the unknown properties elided. + */ + if (prop == ZPROP_INVAL) + continue; - if (!zfs_prop_user(propname) && zfs_prop_readonly(prop)) - continue; + if (zfs_prop_readonly(prop)) + continue; + } verify(nvpair_value_nvlist(elem, &propnv) == 0); if (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_RESERVATION || prop == ZFS_PROP_REFQUOTA || prop == ZFS_PROP_REFRESERVATION) { - /* these guys are modifyable, but have no source */ + char *source; uint64_t value; verify(nvlist_lookup_uint64(propnv, ZPROP_VALUE, &value) == 0); if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) continue; + /* + * May have no source before SPA_VERSION_RECVD_PROPS, + * but is still modifiable. + */ + if (nvlist_lookup_string(propnv, + ZPROP_SOURCE, &source) == 0) { + if ((strcmp(source, zhp->zfs_name) != 0) && + (strcmp(source, + ZPROP_SOURCE_VAL_RECVD) != 0)) + continue; + } } else { char *source; if (nvlist_lookup_string(propnv, ZPROP_SOURCE, &source) != 0) continue; - if (strcmp(source, zhp->zfs_name) != 0) + if ((strcmp(source, zhp->zfs_name) != 0) && + (strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0)) continue; } @@ -289,7 +684,7 @@ send_iterate_fs(zfs_handle_t *zhp, void *arg) { send_data_t *sd = arg; nvlist_t *nvfs, *nv; - int rv; + int rv = 0; uint64_t parent_fromsnap_guid_save = sd->parent_fromsnap_guid; uint64_t guid = zhp->zfs_dmustats.dds_guid; char guidstring[64]; @@ -331,7 +726,8 @@ send_iterate_fs(zfs_handle_t *zhp, void *arg) nvlist_free(nvfs); /* iterate over children */ - rv = zfs_iter_filesystems(zhp, send_iterate_fs, sd); + if (sd->recursive) + rv = zfs_iter_filesystems(zhp, send_iterate_fs, sd); sd->parent_fromsnap_guid = parent_fromsnap_guid_save; @@ -341,7 +737,7 @@ send_iterate_fs(zfs_handle_t *zhp, void *arg) static int gather_nvlist(libzfs_handle_t *hdl, const char *fsname, const char *fromsnap, - const char *tosnap, nvlist_t **nvlp, avl_tree_t **avlp) + const char *tosnap, boolean_t recursive, nvlist_t **nvlp, avl_tree_t **avlp) { zfs_handle_t *zhp; send_data_t sd = { 0 }; @@ -354,6 +750,7 @@ gather_nvlist(libzfs_handle_t *hdl, const char *fsname, const char *fromsnap, VERIFY(0 == nvlist_alloc(&sd.fss, NV_UNIQUE_NAME, 0)); sd.fromsnap = fromsnap; sd.tosnap = tosnap; + sd.recursive = recursive; if ((error = send_iterate_fs(zhp, &sd)) != 0) { nvlist_free(sd.fss); @@ -415,7 +812,7 @@ zfs_snapshot_compare(const void *larg, const void *rarg) return (0); } -static int +int zfs_iter_snapshots_sorted(zfs_handle_t *zhp, zfs_iter_f callback, void *data) { int ret = 0; @@ -446,13 +843,16 @@ typedef struct send_dump_data { /* these are all just the short snapname (the part after the @) */ const char *fromsnap; const char *tosnap; - char lastsnap[ZFS_MAXNAMELEN]; + char prevsnap[ZFS_MAXNAMELEN]; boolean_t seenfrom, seento, replicate, doall, fromorigin; boolean_t verbose; int outfd; boolean_t err; nvlist_t *fss; avl_tree_t *fsavl; + snapfilter_cb_t *filter_cb; + void *filter_cb_arg; + nvlist_t *debugnv; } send_dump_data_t; /* @@ -461,10 +861,11 @@ typedef struct send_dump_data { */ static int dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, boolean_t fromorigin, - int outfd) + int outfd, boolean_t enoent_ok, boolean_t *got_enoent, nvlist_t *debugnv) { zfs_cmd_t zc = { 0 }; libzfs_handle_t *hdl = zhp->zfs_hdl; + nvlist_t *thisdbg; assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); assert(fromsnap == NULL || fromsnap[0] == '\0' || !fromorigin); @@ -475,11 +876,26 @@ dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, boolean_t fromorigin, zc.zc_cookie = outfd; zc.zc_obj = fromorigin; + *got_enoent = B_FALSE; + + VERIFY(0 == nvlist_alloc(&thisdbg, NV_UNIQUE_NAME, 0)); + if (fromsnap && fromsnap[0] != '\0') { + VERIFY(0 == nvlist_add_string(thisdbg, + "fromsnap", fromsnap)); + } + if (ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SEND, &zc) != 0) { char errbuf[1024]; (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "warning: cannot send '%s'"), zhp->zfs_name); + VERIFY(0 == nvlist_add_uint64(thisdbg, "error", errno)); + if (debugnv) { + VERIFY(0 == nvlist_add_nvlist(debugnv, + zhp->zfs_name, thisdbg)); + } + nvlist_free(thisdbg); + switch (errno) { case EXDEV: @@ -488,6 +904,10 @@ dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, boolean_t fromorigin, return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); case ENOENT: + if (enoent_ok) { + *got_enoent = B_TRUE; + return (0); + } if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_SNAPSHOT)) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, @@ -515,6 +935,10 @@ dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, boolean_t fromorigin, } } + if (debugnv) + VERIFY(0 == nvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg)); + nvlist_free(thisdbg); + return (0); } @@ -524,13 +948,17 @@ dump_snapshot(zfs_handle_t *zhp, void *arg) send_dump_data_t *sdd = arg; const char *thissnap; int err; + boolean_t got_enoent; + boolean_t isfromsnap, istosnap; + boolean_t exclude = B_FALSE; thissnap = strchr(zhp->zfs_name, '@') + 1; + isfromsnap = (sdd->fromsnap != NULL && + strcmp(sdd->fromsnap, thissnap) == 0); - if (sdd->fromsnap && !sdd->seenfrom && - strcmp(sdd->fromsnap, thissnap) == 0) { + if (!sdd->seenfrom && isfromsnap) { sdd->seenfrom = B_TRUE; - (void) strcpy(sdd->lastsnap, thissnap); + (void) strcpy(sdd->prevsnap, thissnap); zfs_close(zhp); return (0); } @@ -540,20 +968,63 @@ dump_snapshot(zfs_handle_t *zhp, void *arg) return (0); } + istosnap = (strcmp(sdd->tosnap, thissnap) == 0); + if (istosnap) + sdd->seento = B_TRUE; + + if (!sdd->doall && !isfromsnap && !istosnap) { + if (sdd->replicate) { + char *snapname; + nvlist_t *snapprops; + /* + * Filter out all intermediate snapshots except origin + * snapshots needed to replicate clones. + */ + nvlist_t *nvfs = fsavl_find(sdd->fsavl, + zhp->zfs_dmustats.dds_guid, &snapname); + + VERIFY(0 == nvlist_lookup_nvlist(nvfs, + "snapprops", &snapprops)); + VERIFY(0 == nvlist_lookup_nvlist(snapprops, + thissnap, &snapprops)); + exclude = !nvlist_exists(snapprops, "is_clone_origin"); + } else { + exclude = B_TRUE; + } + } + + /* + * If a filter function exists, call it to determine whether + * this snapshot will be sent. + */ + if (exclude || (sdd->filter_cb != NULL && + sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) { + /* + * This snapshot is filtered out. Don't send it, and don't + * set prevsnap, so it will be as if this snapshot didn't + * exist, and the next accepted snapshot will be sent as + * an incremental from the last accepted one, or as the + * first (and full) snapshot in the case of a replication, + * non-incremental send. + */ + zfs_close(zhp); + return (0); + } + /* send it */ if (sdd->verbose) { (void) fprintf(stderr, "sending from @%s to %s\n", - sdd->lastsnap, zhp->zfs_name); + sdd->prevsnap, zhp->zfs_name); } - err = dump_ioctl(zhp, sdd->lastsnap, - sdd->lastsnap[0] == '\0' && (sdd->fromorigin || sdd->replicate), - sdd->outfd); + err = dump_ioctl(zhp, sdd->prevsnap, + sdd->prevsnap[0] == '\0' && (sdd->fromorigin || sdd->replicate), + sdd->outfd, B_TRUE, &got_enoent, sdd->debugnv); - if (!sdd->seento && strcmp(sdd->tosnap, thissnap) == 0) - sdd->seento = B_TRUE; - - (void) strcpy(sdd->lastsnap, thissnap); + if (got_enoent) + err = 0; + else + (void) strcpy(sdd->prevsnap, thissnap); zfs_close(zhp); return (err); } @@ -592,51 +1063,32 @@ dump_filesystem(zfs_handle_t *zhp, void *arg) } } - if (sdd->doall) { - sdd->seenfrom = sdd->seento = sdd->lastsnap[0] = 0; - if (sdd->fromsnap == NULL || missingfrom) - sdd->seenfrom = B_TRUE; + sdd->seenfrom = sdd->seento = sdd->prevsnap[0] = 0; + if (sdd->fromsnap == NULL || missingfrom) + sdd->seenfrom = B_TRUE; - rv = zfs_iter_snapshots_sorted(zhp, dump_snapshot, arg); - if (!sdd->seenfrom) { + rv = zfs_iter_snapshots_sorted(zhp, dump_snapshot, arg); + if (!sdd->seenfrom) { + (void) fprintf(stderr, + "WARNING: could not send %s@%s:\n" + "incremental source (%s@%s) does not exist\n", + zhp->zfs_name, sdd->tosnap, + zhp->zfs_name, sdd->fromsnap); + sdd->err = B_TRUE; + } else if (!sdd->seento) { + if (sdd->fromsnap) { (void) fprintf(stderr, "WARNING: could not send %s@%s:\n" - "incremental source (%s@%s) does not exist\n", + "incremental source (%s@%s) " + "is not earlier than it\n", zhp->zfs_name, sdd->tosnap, zhp->zfs_name, sdd->fromsnap); - sdd->err = B_TRUE; - } else if (!sdd->seento) { - if (sdd->fromsnap) { - (void) fprintf(stderr, - "WARNING: could not send %s@%s:\n" - "incremental source (%s@%s) " - "is not earlier than it\n", - zhp->zfs_name, sdd->tosnap, - zhp->zfs_name, sdd->fromsnap); - } else { - (void) fprintf(stderr, "WARNING: " - "could not send %s@%s: does not exist\n", - zhp->zfs_name, sdd->tosnap); - } - sdd->err = B_TRUE; - } - } else { - zfs_handle_t *snapzhp; - char snapname[ZFS_MAXNAMELEN]; - - (void) snprintf(snapname, sizeof (snapname), "%s@%s", - zfs_get_name(zhp), sdd->tosnap); - snapzhp = zfs_open(zhp->zfs_hdl, snapname, ZFS_TYPE_SNAPSHOT); - if (snapzhp == NULL) { - rv = -1; } else { - rv = dump_ioctl(snapzhp, - missingfrom ? NULL : sdd->fromsnap, - sdd->fromorigin || missingfrom, - sdd->outfd); - sdd->seento = B_TRUE; - zfs_close(snapzhp); + (void) fprintf(stderr, "WARNING: " + "could not send %s@%s: does not exist\n", + zhp->zfs_name, sdd->tosnap); } + sdd->err = B_TRUE; } return (rv); @@ -652,6 +1104,29 @@ dump_filesystems(zfs_handle_t *rzhp, void *arg) if (!sdd->replicate) return (dump_filesystem(rzhp, sdd)); + /* Mark the clone origin snapshots. */ + for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; + fspair = nvlist_next_nvpair(sdd->fss, fspair)) { + nvlist_t *nvfs; + uint64_t origin_guid = 0; + + VERIFY(0 == nvpair_value_nvlist(fspair, &nvfs)); + (void) nvlist_lookup_uint64(nvfs, "origin", &origin_guid); + if (origin_guid != 0) { + char *snapname; + nvlist_t *origin_nv = fsavl_find(sdd->fsavl, + origin_guid, &snapname); + if (origin_nv != NULL) { + nvlist_t *snapprops; + VERIFY(0 == nvlist_lookup_nvlist(origin_nv, + "snapprops", &snapprops)); + VERIFY(0 == nvlist_lookup_nvlist(snapprops, + snapname, &snapprops)); + VERIFY(0 == nvlist_add_boolean( + snapprops, "is_clone_origin")); + } + } + } again: needagain = progress = B_FALSE; for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; @@ -661,7 +1136,6 @@ again: zfs_handle_t *zhp; int err; uint64_t origin_guid = 0; - nvlist_t *origin_nv; VERIFY(nvpair_value_nvlist(fspair, &fslist) == 0); if (nvlist_lookup_boolean(fslist, "sent") == 0) @@ -670,15 +1144,19 @@ again: VERIFY(nvlist_lookup_string(fslist, "name", &fsname) == 0); (void) nvlist_lookup_uint64(fslist, "origin", &origin_guid); - origin_nv = fsavl_find(sdd->fsavl, origin_guid, NULL); - if (origin_nv && - nvlist_lookup_boolean(origin_nv, "sent") == ENOENT) { - /* - * origin has not been sent yet; - * skip this clone. - */ - needagain = B_TRUE; - continue; + if (origin_guid != 0) { + nvlist_t *origin_nv = fsavl_find(sdd->fsavl, + origin_guid, NULL); + if (origin_nv != NULL && + nvlist_lookup_boolean(origin_nv, + "sent") == ENOENT) { + /* + * origin has not been sent yet; + * skip this clone. + */ + needagain = B_TRUE; + continue; + } } zhp = zfs_open(rzhp->zfs_hdl, fsname, ZFS_TYPE_DATASET); @@ -709,21 +1187,37 @@ again: * is TRUE. * * The send stream is recursive (i.e. dumps a hierarchy of snapshots) and - * uses a special header (with a version field of DMU_BACKUP_HEADER_VERSION) + * uses a special header (with a hdrtype field of DMU_COMPOUNDSTREAM) * if "replicate" is set. If "doall" is set, dump all the intermediate - * snapshots. The DMU_BACKUP_HEADER_VERSION header is used in the "doall" - * case too. + * snapshots. The DMU_COMPOUNDSTREAM header is used in the "doall" + * case too. If "props" is set, send properties. */ int zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, - boolean_t replicate, boolean_t doall, boolean_t fromorigin, - boolean_t verbose, int outfd) + sendflags_t flags, int outfd, snapfilter_cb_t filter_func, + void *cb_arg, nvlist_t **debugnvp) { char errbuf[1024]; send_dump_data_t sdd = { 0 }; int err; nvlist_t *fss = NULL; avl_tree_t *fsavl = NULL; + char holdtag[128]; + static uint64_t holdseq; + int spa_version; + boolean_t holdsnaps = B_FALSE; + pthread_t tid; + int pipefd[2]; + dedup_arg_t dda = { 0 }; + int featureflags = 0; + + if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM) { + uint64_t version; + version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); + if (version >= ZPL_VERSION_SA) { + featureflags |= DMU_BACKUP_FEATURE_SA_SPILL; + } + } (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot send '%s'"), zhp->zfs_name); @@ -734,15 +1228,48 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); } - if (replicate || doall) { + if (zfs_spa_version(zhp, &spa_version) == 0 && + spa_version >= SPA_VERSION_USERREFS) + holdsnaps = B_TRUE; + + if (flags.dedup) { + featureflags |= (DMU_BACKUP_FEATURE_DEDUP | + DMU_BACKUP_FEATURE_DEDUPPROPS); + if (err = pipe(pipefd)) { + zfs_error_aux(zhp->zfs_hdl, strerror(errno)); + return (zfs_error(zhp->zfs_hdl, EZFS_PIPEFAILED, + errbuf)); + } + dda.outputfd = outfd; + dda.inputfd = pipefd[1]; + dda.dedup_hdl = zhp->zfs_hdl; + if (err = pthread_create(&tid, NULL, cksummer, &dda)) { + (void) close(pipefd[0]); + (void) close(pipefd[1]); + zfs_error_aux(zhp->zfs_hdl, strerror(errno)); + return (zfs_error(zhp->zfs_hdl, + EZFS_THREADCREATEFAILED, errbuf)); + } + } + + if (flags.replicate || flags.doall || flags.props) { dmu_replay_record_t drr = { 0 }; char *packbuf = NULL; size_t buflen = 0; zio_cksum_t zc = { 0 }; - assert(fromsnap || doall); + if (holdsnaps) { + (void) snprintf(holdtag, sizeof (holdtag), + ".send-%d-%llu", getpid(), (u_longlong_t)holdseq); + ++holdseq; + err = zfs_hold_range(zhp, fromsnap, tosnap, + holdtag, flags.replicate, B_TRUE, filter_func, + cb_arg); + if (err) + goto err_out; + } - if (replicate) { + if (flags.replicate || flags.props) { nvlist_t *hdrnv; VERIFY(0 == nvlist_alloc(&hdrnv, NV_UNIQUE_NAME, 0)); @@ -751,45 +1278,65 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, "fromsnap", fromsnap)); } VERIFY(0 == nvlist_add_string(hdrnv, "tosnap", tosnap)); + if (!flags.replicate) { + VERIFY(0 == nvlist_add_boolean(hdrnv, + "not_recursive")); + } err = gather_nvlist(zhp->zfs_hdl, zhp->zfs_name, - fromsnap, tosnap, &fss, &fsavl); - if (err) - return (err); + fromsnap, tosnap, flags.replicate, &fss, &fsavl); + if (err) { + if (holdsnaps) { + (void) zfs_release_range(zhp, fromsnap, + tosnap, holdtag, flags.replicate); + } + goto err_out; + } VERIFY(0 == nvlist_add_nvlist(hdrnv, "fss", fss)); err = nvlist_pack(hdrnv, &packbuf, &buflen, NV_ENCODE_XDR, 0); - nvlist_free(hdrnv); + if (debugnvp) + *debugnvp = hdrnv; + else + nvlist_free(hdrnv); if (err) { fsavl_destroy(fsavl); nvlist_free(fss); - return (zfs_standard_error(zhp->zfs_hdl, - err, errbuf)); + if (holdsnaps) { + (void) zfs_release_range(zhp, fromsnap, + tosnap, holdtag, flags.replicate); + } + goto stderr_out; } } /* write first begin record */ drr.drr_type = DRR_BEGIN; drr.drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC; - drr.drr_u.drr_begin.drr_version = DMU_BACKUP_HEADER_VERSION; + DMU_SET_STREAM_HDRTYPE(drr.drr_u.drr_begin.drr_versioninfo, + DMU_COMPOUNDSTREAM); + DMU_SET_FEATUREFLAGS(drr.drr_u.drr_begin.drr_versioninfo, + featureflags); (void) snprintf(drr.drr_u.drr_begin.drr_toname, sizeof (drr.drr_u.drr_begin.drr_toname), "%s@%s", zhp->zfs_name, tosnap); drr.drr_payloadlen = buflen; - fletcher_4_incremental_native(&drr, sizeof (drr), &zc); - err = write(outfd, &drr, sizeof (drr)); + err = cksum_and_write(&drr, sizeof (drr), &zc, outfd); /* write header nvlist */ - if (err != -1) { - fletcher_4_incremental_native(packbuf, buflen, &zc); - err = write(outfd, packbuf, buflen); + if (err != -1 && packbuf != NULL) { + err = cksum_and_write(packbuf, buflen, &zc, outfd); } free(packbuf); if (err == -1) { fsavl_destroy(fsavl); nvlist_free(fss); - return (zfs_standard_error(zhp->zfs_hdl, - errno, errbuf)); + if (holdsnaps) { + (void) zfs_release_range(zhp, fromsnap, tosnap, + holdtag, flags.replicate); + } + err = errno; + goto stderr_out; } /* write end record */ @@ -801,8 +1348,12 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, if (err == -1) { fsavl_destroy(fsavl); nvlist_free(fss); - return (zfs_standard_error(zhp->zfs_hdl, - errno, errbuf)); + err = errno; + if (holdsnaps) { + (void) zfs_release_range(zhp, fromsnap, + tosnap, holdtag, flags.replicate); + } + goto stderr_out; } } } @@ -810,18 +1361,30 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, /* dump each stream */ sdd.fromsnap = fromsnap; sdd.tosnap = tosnap; - sdd.outfd = outfd; - sdd.replicate = replicate; - sdd.doall = doall; - sdd.fromorigin = fromorigin; + if (flags.dedup) + sdd.outfd = pipefd[0]; + else + sdd.outfd = outfd; + sdd.replicate = flags.replicate; + sdd.doall = flags.doall; + sdd.fromorigin = flags.fromorigin; sdd.fss = fss; sdd.fsavl = fsavl; - sdd.verbose = verbose; + sdd.verbose = flags.verbose; + sdd.filter_cb = filter_func; + sdd.filter_cb_arg = cb_arg; + if (debugnvp) + sdd.debugnv = *debugnvp; err = dump_filesystems(zhp, &sdd); fsavl_destroy(fsavl); nvlist_free(fss); - if (replicate || doall) { + if (flags.dedup) { + (void) close(pipefd[0]); + (void) pthread_join(tid, NULL); + } + + if (flags.replicate || flags.doall || flags.props) { /* * write final end record. NB: want to do this even if * there was some error, because it might not be totally @@ -829,6 +1392,10 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, */ dmu_replay_record_t drr = { 0 }; drr.drr_type = DRR_END; + if (holdsnaps) { + (void) zfs_release_range(zhp, fromsnap, tosnap, + holdtag, flags.replicate); + } if (write(outfd, &drr, sizeof (drr)) == -1) { return (zfs_standard_error(zhp->zfs_hdl, errno, errbuf)); @@ -836,6 +1403,16 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, } return (err || sdd.err); + +stderr_out: + err = zfs_standard_error(zhp->zfs_hdl, err, errbuf); +err_out: + if (flags.dedup) { + (void) pthread_cancel(tid); + (void) pthread_join(tid, NULL); + (void) close(pipefd[0]); + } + return (err); } /* @@ -1017,12 +1594,13 @@ recv_destroy(libzfs_handle_t *hdl, const char *name, int baselen, changelist_free(clp); /* - * Deferred destroy should always succeed. Since we can't tell - * if it destroyed the dataset or just marked it for deferred - * destroy, always do the rename just in case. + * Deferred destroy might destroy the snapshot or only mark it to be + * destroyed later, and it returns success in either case. */ - if (err != 0 || defer) + if (err != 0 || (defer && zfs_dataset_exists(hdl, name, + ZFS_TYPE_SNAPSHOT))) { err = recv_rename(hdl, name, NULL, baselen, newname, flags); + } return (err); } @@ -1040,6 +1618,7 @@ guid_to_name_cb(zfs_handle_t *zhp, void *arg) if (zhp->zfs_dmustats.dds_guid == gtnd->guid) { (void) strcpy(gtnd->name, zhp->zfs_name); + zfs_close(zhp); return (EEXIST); } err = zfs_iter_children(zhp, guid_to_name_cb, gtnd); @@ -1130,18 +1709,22 @@ created_before(libzfs_handle_t *hdl, avl_tree_t *avl, static int recv_incremental_replication(libzfs_handle_t *hdl, const char *tofs, - recvflags_t flags, nvlist_t *stream_nv, avl_tree_t *stream_avl) + recvflags_t flags, nvlist_t *stream_nv, avl_tree_t *stream_avl, + nvlist_t *renamed) { nvlist_t *local_nv; avl_tree_t *local_avl; nvpair_t *fselem, *nextfselem; - char *tosnap, *fromsnap; + char *fromsnap; char newname[ZFS_MAXNAMELEN]; int error; - boolean_t needagain, progress; + boolean_t needagain, progress, recursive; + char *s1, *s2; VERIFY(0 == nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap)); - VERIFY(0 == nvlist_lookup_string(stream_nv, "tosnap", &tosnap)); + + recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == + ENOENT); if (flags.dryrun) return (0); @@ -1150,7 +1733,7 @@ again: needagain = progress = B_FALSE; if ((error = gather_nvlist(hdl, tofs, fromsnap, NULL, - &local_nv, &local_avl)) != 0) + recursive, &local_nv, &local_avl)) != 0) return (error); /* @@ -1273,7 +1856,7 @@ again: stream_snapname, &props)) { zfs_cmd_t zc = { 0 }; - zc.zc_cookie = B_TRUE; /* clear current props */ + zc.zc_cookie = B_TRUE; /* received */ (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", fsname, nvpair_name(snapelem)); if (zcmd_write_src_nvlist(hdl, &zc, @@ -1321,10 +1904,13 @@ again: continue; } - if (fromguid == 0 && flags.verbose) { - (void) printf("local fs %s does not have fromsnap " - "(%s in stream); must have been deleted locally; " - "ignoring\n", fsname, fromsnap); + if (fromguid == 0) { + if (flags.verbose) { + (void) printf("local fs %s does not have " + "fromsnap (%s in stream); must have " + "been deleted locally; ignoring\n", + fsname, fromsnap); + } continue; } @@ -1333,11 +1919,19 @@ again: VERIFY(0 == nvlist_lookup_uint64(stream_nvfs, "parentfromsnap", &stream_parent_fromsnap_guid)); - /* check for rename */ + s1 = strrchr(fsname, '/'); + s2 = strrchr(stream_fsname, '/'); + + /* + * Check for rename. If the exact receive path is specified, it + * does not count as a rename, but we still need to check the + * datasets beneath it. + */ if ((stream_parent_fromsnap_guid != 0 && + parent_fromsnap_guid != 0 && stream_parent_fromsnap_guid != parent_fromsnap_guid) || - strcmp(strrchr(fsname, '/'), - strrchr(stream_fsname, '/')) != 0) { + ((flags.isprefix || strcmp(tofs, fsname) != 0) && + (s1 != NULL) && (s2 != NULL) && strcmp(s1, s2) != 0)) { nvlist_t *parent; char tryname[ZFS_MAXNAMELEN]; @@ -1365,8 +1959,16 @@ again: } } + newname[0] = '\0'; + error = recv_rename(hdl, fsname, tryname, strlen(tofs)+1, newname, flags); + + if (renamed != NULL && newname[0] != '\0') { + VERIFY(0 == nvlist_add_boolean(renamed, + newname)); + } + if (error) needagain = B_TRUE; else @@ -1395,37 +1997,28 @@ zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, nvlist_t *stream_nv = NULL; avl_tree_t *stream_avl = NULL; char *fromsnap = NULL; + char *cp; char tofs[ZFS_MAXNAMELEN]; + char sendfs[ZFS_MAXNAMELEN]; char errbuf[1024]; dmu_replay_record_t drre; int error; boolean_t anyerr = B_FALSE; boolean_t softerr = B_FALSE; + boolean_t recursive; (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot receive")); - if (strchr(destname, '@')) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "can not specify snapshot name for multi-snapshot stream")); - return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); - } - assert(drr->drr_type == DRR_BEGIN); assert(drr->drr_u.drr_begin.drr_magic == DMU_BACKUP_MAGIC); - assert(drr->drr_u.drr_begin.drr_version == DMU_BACKUP_HEADER_VERSION); + assert(DMU_GET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo) == + DMU_COMPOUNDSTREAM); /* * Read in the nvlist from the stream. */ if (drr->drr_payloadlen != 0) { - if (!flags.isprefix) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "must use -d to receive replication " - "(send -R) stream")); - return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); - } - error = recv_read_nvlist(hdl, fd, drr->drr_payloadlen, &stream_nv, flags.byteswap, zc); if (error) { @@ -1434,6 +2027,16 @@ zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, } } + recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == + ENOENT); + + if (recursive && strchr(destname, '@')) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "cannot specify snapshot name for multi-snapshot stream")); + error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); + goto out; + } + /* * Read in the end record and verify checksum. */ @@ -1477,21 +2080,73 @@ zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, } if (fromsnap != NULL) { + nvlist_t *renamed = NULL; + nvpair_t *pair = NULL; + (void) strlcpy(tofs, destname, ZFS_MAXNAMELEN); if (flags.isprefix) { - int i = strcspn(drr->drr_u.drr_begin.drr_toname, - "/@"); + struct drr_begin *drrb = &drr->drr_u.drr_begin; + int i; + + if (flags.istail) { + cp = strrchr(drrb->drr_toname, '/'); + if (cp == NULL) { + (void) strlcat(tofs, "/", + ZFS_MAXNAMELEN); + i = 0; + } else { + i = (cp - drrb->drr_toname); + } + } else { + i = strcspn(drrb->drr_toname, "/@"); + } /* zfs_receive_one() will create_parents() */ - (void) strlcat(tofs, - &drr->drr_u.drr_begin.drr_toname[i], + (void) strlcat(tofs, &drrb->drr_toname[i], ZFS_MAXNAMELEN); *strchr(tofs, '@') = '\0'; } - softerr = recv_incremental_replication(hdl, tofs, - flags, stream_nv, stream_avl); + + if (recursive && !flags.dryrun && !flags.nomount) { + VERIFY(0 == nvlist_alloc(&renamed, + NV_UNIQUE_NAME, 0)); + } + + softerr = recv_incremental_replication(hdl, tofs, flags, + stream_nv, stream_avl, renamed); + + /* Unmount renamed filesystems before receiving. */ + while ((pair = nvlist_next_nvpair(renamed, + pair)) != NULL) { + zfs_handle_t *zhp; + prop_changelist_t *clp = NULL; + + zhp = zfs_open(hdl, nvpair_name(pair), + ZFS_TYPE_FILESYSTEM); + if (zhp != NULL) { + clp = changelist_gather(zhp, + ZFS_PROP_MOUNTPOINT, 0, 0); + zfs_close(zhp); + if (clp != NULL) { + softerr |= + changelist_prefix(clp); + changelist_free(clp); + } + } + } + + nvlist_free(renamed); } } + /* + * Get the fs specified by the first path in the stream (the top level + * specified by 'zfs send') and pass it to each invocation of + * zfs_receive_one(). + */ + (void) strlcpy(sendfs, drr->drr_u.drr_begin.drr_toname, + ZFS_MAXNAMELEN); + if ((cp = strchr(sendfs, '@')) != NULL) + *cp = '\0'; /* Finally, receive each contained stream */ do { @@ -1503,7 +2158,7 @@ zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, * recv_skip() and return 0). */ error = zfs_receive_impl(hdl, destname, flags, fd, - stream_avl, top_zfs); + sendfs, stream_nv, stream_avl, top_zfs); if (error == ENODATA) { error = 0; break; @@ -1517,7 +2172,7 @@ zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, * renames again. */ softerr = recv_incremental_replication(hdl, tofs, flags, - stream_nv, stream_avl); + stream_nv, stream_avl, NULL); } out: @@ -1531,11 +2186,28 @@ out: return (error); } +static void +trunc_prop_errs(int truncated) +{ + ASSERT(truncated != 0); + + if (truncated == 1) + (void) fprintf(stderr, dgettext(TEXT_DOMAIN, + "1 more property could not be set\n")); + else + (void) fprintf(stderr, dgettext(TEXT_DOMAIN, + "%d more properties could not be set\n"), truncated); +} + static int recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) { dmu_replay_record_t *drr; void *buf = malloc(1<<20); + char errbuf[1024]; + + (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, + "cannot receive:")); /* XXX would be great to use lseek if possible... */ drr = buf; @@ -1548,7 +2220,11 @@ recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) switch (drr->drr_type) { case DRR_BEGIN: /* NB: not to be used on v2 stream packages */ - assert(drr->drr_payloadlen == 0); + if (drr->drr_payloadlen != 0) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "invalid substream header")); + return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); + } break; case DRR_END: @@ -1574,13 +2250,23 @@ recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) (void) recv_read(hdl, fd, buf, drr->drr_u.drr_write.drr_length, B_FALSE, NULL); break; - + case DRR_SPILL: + if (byteswap) { + drr->drr_u.drr_write.drr_length = + BSWAP_64(drr->drr_u.drr_spill.drr_length); + } + (void) recv_read(hdl, fd, buf, + drr->drr_u.drr_spill.drr_length, B_FALSE, NULL); + break; + case DRR_WRITE_BYREF: case DRR_FREEOBJECTS: case DRR_FREE: break; default: - assert(!"invalid record type"); + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "invalid record type")); + return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); } } @@ -1594,27 +2280,33 @@ recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) static int zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, recvflags_t flags, dmu_replay_record_t *drr, - dmu_replay_record_t *drr_noswap, avl_tree_t *stream_avl, - char **top_zfs) + dmu_replay_record_t *drr_noswap, const char *sendfs, + nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs) { zfs_cmd_t zc = { 0 }; time_t begin_time; - int ioctl_err, ioctl_errno, err, choplen; + int ioctl_err, ioctl_errno, err; char *cp; struct drr_begin *drrb = &drr->drr_u.drr_begin; char errbuf[1024]; - char chopprefix[ZFS_MAXNAMELEN]; + char prop_errbuf[1024]; + const char *chopprefix; boolean_t newfs = B_FALSE; boolean_t stream_wantsnewfs; uint64_t parent_snapguid = 0; prop_changelist_t *clp = NULL; nvlist_t *snapprops_nvlist = NULL; + zprop_errflags_t prop_errflags; + boolean_t recursive; begin_time = time(NULL); (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot receive")); + recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == + ENOENT); + if (stream_avl != NULL) { char *snapname; nvlist_t *fs = fsavl_find(stream_avl, drrb->drr_toguid, @@ -1645,6 +2337,8 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, return (-1); } + cp = NULL; + /* * Determine how much of the snapshot name stored in the stream * we are going to tack on to the name they specified on the @@ -1653,38 +2347,77 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, * If they specified a snapshot, chop the entire name stored in * the stream. */ - (void) strcpy(chopprefix, drrb->drr_toname); - if (flags.isprefix) { + if (flags.istail) { + /* + * A filesystem was specified with -e. We want to tack on only + * the tail of the sent snapshot path. + */ + if (strchr(tosnap, '@')) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " + "argument - snapshot not allowed with -e")); + return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); + } + + chopprefix = strrchr(sendfs, '/'); + + if (chopprefix == NULL) { + /* + * The tail is the poolname, so we need to + * prepend a path separator. + */ + int len = strlen(drrb->drr_toname); + cp = malloc(len + 2); + cp[0] = '/'; + (void) strcpy(&cp[1], drrb->drr_toname); + chopprefix = cp; + } else { + chopprefix = drrb->drr_toname + (chopprefix - sendfs); + } + } else if (flags.isprefix) { /* - * They specified a fs with -d, we want to tack on - * everything but the pool name stored in the stream + * A filesystem was specified with -d. We want to tack on + * everything but the first element of the sent snapshot path + * (all but the pool name). */ if (strchr(tosnap, '@')) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " "argument - snapshot not allowed with -d")); return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); } - cp = strchr(chopprefix, '/'); - if (cp == NULL) - cp = strchr(chopprefix, '@'); - *cp = '\0'; + + chopprefix = strchr(drrb->drr_toname, '/'); + if (chopprefix == NULL) + chopprefix = strchr(drrb->drr_toname, '@'); } else if (strchr(tosnap, '@') == NULL) { /* - * If they specified a filesystem without -d, we want to - * tack on everything after the fs specified in the - * first name from the stream. + * If a filesystem was specified without -d or -e, we want to + * tack on everything after the fs specified by 'zfs send'. */ - cp = strchr(chopprefix, '@'); - *cp = '\0'; + chopprefix = drrb->drr_toname + strlen(sendfs); + } else { + /* A snapshot was specified as an exact path (no -d or -e). */ + if (recursive) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "cannot specify snapshot name for multi-snapshot " + "stream")); + return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); + } + chopprefix = drrb->drr_toname + strlen(drrb->drr_toname); } - choplen = strlen(chopprefix); + + ASSERT(strstr(drrb->drr_toname, sendfs) == drrb->drr_toname); + ASSERT(chopprefix > drrb->drr_toname); + ASSERT(chopprefix <= drrb->drr_toname + strlen(drrb->drr_toname)); + ASSERT(chopprefix[0] == '/' || chopprefix[0] == '@' || + chopprefix[0] == '\0'); /* * Determine name of destination snapshot, store in zc_value. */ + (void) strcpy(zc.zc_top_ds, tosnap); (void) strcpy(zc.zc_value, tosnap); - (void) strncat(zc.zc_value, drrb->drr_toname+choplen, - sizeof (zc.zc_value)); + (void) strncat(zc.zc_value, chopprefix, sizeof (zc.zc_value)); + free(cp); if (!zfs_name_valid(zc.zc_value, ZFS_TYPE_SNAPSHOT)) { zcmd_free_nvlists(&zc); return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); @@ -1742,7 +2475,14 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, (void) strcpy(zc.zc_name, zc.zc_value); *strchr(zc.zc_name, '@') = '\0'; - if (!zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { + /* + * If the exact receive path was specified and this is the + * topmost path in the stream, then if the fs does not exist we + * should look no further. + */ + if ((flags.isprefix || (*(chopprefix = drrb->drr_toname + + strlen(sendfs)) != '\0' && *chopprefix != '@')) && + !zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { char snap[ZFS_MAXNAMELEN]; (void) strcpy(snap, strchr(zc.zc_value, '@')); if (guid_to_name(hdl, tosnap, drrb->drr_fromguid, @@ -1758,6 +2498,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { zfs_handle_t *zhp; + /* * Destination fs exists. Therefore this should either * be an incremental, or the stream specifies a new fs @@ -1765,7 +2506,6 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, * away (and have therefore specified -F and removed any * snapshots). */ - if (stream_wantsnewfs) { if (!flags.force) { zcmd_free_nvlists(&zc); @@ -1819,12 +2559,6 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, return (-1); } } - if (!flags.dryrun && zhp->zfs_type == ZFS_TYPE_VOLUME && - zvol_remove_link(hdl, zhp->zfs_name) != 0) { - zfs_close(zhp); - zcmd_free_nvlists(&zc); - return (-1); - } zfs_close(zhp); } else { /* @@ -1848,7 +2582,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, */ *cp = '\0'; - if (flags.isprefix && !flags.dryrun && + if (flags.isprefix && !flags.istail && !flags.dryrun && create_parents(hdl, zc.zc_value, strlen(tosnap)) != 0) { zcmd_free_nvlists(&zc); return (zfs_error(hdl, EZFS_BADRESTORE, errbuf)); @@ -1873,21 +2607,59 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, return (recv_skip(hdl, infd, flags.byteswap)); } + zc.zc_nvlist_dst = (uint64_t)(uintptr_t)prop_errbuf; + zc.zc_nvlist_dst_size = sizeof (prop_errbuf); + err = ioctl_err = zfs_ioctl(hdl, ZFS_IOC_RECV, &zc); ioctl_errno = errno; + prop_errflags = (zprop_errflags_t)zc.zc_obj; + + if (err == 0) { + nvlist_t *prop_errors; + VERIFY(0 == nvlist_unpack((void *)(uintptr_t)zc.zc_nvlist_dst, + zc.zc_nvlist_dst_size, &prop_errors, 0)); + + nvpair_t *prop_err = NULL; + + while ((prop_err = nvlist_next_nvpair(prop_errors, + prop_err)) != NULL) { + char tbuf[1024]; + zfs_prop_t prop; + int intval; + + prop = zfs_name_to_prop(nvpair_name(prop_err)); + (void) nvpair_value_int32(prop_err, &intval); + if (strcmp(nvpair_name(prop_err), + ZPROP_N_MORE_ERRORS) == 0) { + trunc_prop_errs(intval); + break; + } else { + (void) snprintf(tbuf, sizeof (tbuf), + dgettext(TEXT_DOMAIN, + "cannot receive %s property on %s"), + nvpair_name(prop_err), zc.zc_name); + zfs_setprop_error(hdl, prop, intval, tbuf); + } + } + nvlist_free(prop_errors); + } + + zc.zc_nvlist_dst = 0; + zc.zc_nvlist_dst_size = 0; zcmd_free_nvlists(&zc); if (err == 0 && snapprops_nvlist) { zfs_cmd_t zc2 = { 0 }; (void) strcpy(zc2.zc_name, zc.zc_value); + zc2.zc_cookie = B_TRUE; /* received */ if (zcmd_write_src_nvlist(hdl, &zc2, snapprops_nvlist) == 0) { (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc2); zcmd_free_nvlists(&zc2); } } - if (err && (ioctl_errno == ENOENT || ioctl_errno == ENODEV)) { + if (err && (ioctl_errno == ENOENT || ioctl_errno == EEXIST)) { /* * It may be that this snapshot already exists, * in which case we want to consume & ignore it @@ -1895,7 +2667,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, */ avl_tree_t *local_avl; nvlist_t *local_nv, *fs; - char *cp = strchr(zc.zc_value, '@'); + cp = strchr(zc.zc_value, '@'); /* * XXX Do this faster by just iterating over snaps in @@ -1903,7 +2675,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, * get a strange "does not exist" error message. */ *cp = '\0'; - if (gather_nvlist(hdl, zc.zc_value, NULL, NULL, + if (gather_nvlist(hdl, zc.zc_value, NULL, NULL, B_FALSE, &local_nv, &local_avl) == 0) { *cp = '@'; fs = fsavl_find(local_avl, drrb->drr_toguid, NULL); @@ -1915,14 +2687,13 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, (void) printf("snap %s already exists; " "ignoring\n", zc.zc_value); } - ioctl_err = recv_skip(hdl, infd, + err = ioctl_err = recv_skip(hdl, infd, flags.byteswap); } } *cp = '@'; } - if (ioctl_err != 0) { switch (ioctl_errno) { case ENODEV: @@ -1961,18 +2732,25 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, "invalid stream (checksum mismatch)")); (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); break; + case ENOTSUP: + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "pool must be upgraded to receive this stream.")); + (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); + break; + case EDQUOT: + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "destination %s space quota exceeded"), zc.zc_name); + (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); + break; default: (void) zfs_standard_error(hdl, ioctl_errno, errbuf); } } /* - * Mount or recreate the /dev links for the target filesystem - * (if created, or if we tore them down to do an incremental - * restore), and the /dev links for the new snapshot (if - * created). Also mount any children of the target filesystem - * if we did a replication receive (indicated by stream_avl - * being non-NULL). + * Mount the target filesystem (if created). Also mount any + * children of the target filesystem if we did a replication + * receive (indicated by stream_avl being non-NULL). */ cp = strchr(zc.zc_value, '@'); if (cp && (ioctl_err == 0 || !newfs)) { @@ -1984,10 +2762,6 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, if (h != NULL) { if (h->zfs_type == ZFS_TYPE_VOLUME) { *cp = '@'; - err = zvol_create_link(hdl, h->zfs_name); - if (err == 0 && ioctl_err == 0) - err = zvol_create_link(hdl, - zc.zc_value); } else if (newfs || stream_avl) { /* * Track the first/top of hierarchy fs, @@ -2006,6 +2780,19 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, changelist_free(clp); } + if (prop_errflags & ZPROP_ERR_NOCLEAR) { + (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " + "failed to clear unreceived properties on %s"), + zc.zc_name); + (void) fprintf(stderr, "\n"); + } + if (prop_errflags & ZPROP_ERR_NORESTORE) { + (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " + "failed to restore original properties on %s"), + zc.zc_name); + (void) fprintf(stderr, "\n"); + } + if (err || ioctl_err) return (-1); @@ -2028,13 +2815,16 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, static int zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, recvflags_t flags, - int infd, avl_tree_t *stream_avl, char **top_zfs) + int infd, const char *sendfs, nvlist_t *stream_nv, avl_tree_t *stream_avl, + char **top_zfs) { int err; dmu_replay_record_t drr, drr_noswap; struct drr_begin *drrb = &drr.drr_u.drr_begin; char errbuf[1024]; zio_cksum_t zcksum = { 0 }; + uint64_t featureflags; + int hdrtype; (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot receive")); @@ -2072,7 +2862,7 @@ zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, recvflags_t flags, drr.drr_type = BSWAP_32(drr.drr_type); drr.drr_payloadlen = BSWAP_32(drr.drr_payloadlen); drrb->drr_magic = BSWAP_64(drrb->drr_magic); - drrb->drr_version = BSWAP_64(drrb->drr_version); + drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo); drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time); drrb->drr_type = BSWAP_32(drrb->drr_type); drrb->drr_flags = BSWAP_32(drrb->drr_flags); @@ -2086,23 +2876,45 @@ zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, recvflags_t flags, return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); } + featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); + hdrtype = DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo); + + if (!DMU_STREAM_SUPPORTED(featureflags) || + (hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) { + zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, + "stream has unsupported feature, feature flags = %lx"), + featureflags); + return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); + } + if (strchr(drrb->drr_toname, '@') == NULL) { zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " "stream (bad snapshot name)")); return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); } - if (drrb->drr_version == DMU_BACKUP_STREAM_VERSION) { + if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == DMU_SUBSTREAM) { + char nonpackage_sendfs[ZFS_MAXNAMELEN]; + if (sendfs == NULL) { + /* + * We were not called from zfs_receive_package(). Get + * the fs specified by 'zfs send'. + */ + char *cp; + (void) strlcpy(nonpackage_sendfs, + drr.drr_u.drr_begin.drr_toname, ZFS_MAXNAMELEN); + if ((cp = strchr(nonpackage_sendfs, '@')) != NULL) + *cp = '\0'; + sendfs = nonpackage_sendfs; + } return (zfs_receive_one(hdl, infd, tosnap, flags, - &drr, &drr_noswap, stream_avl, top_zfs)); - } else if (drrb->drr_version == DMU_BACKUP_HEADER_VERSION) { + &drr, &drr_noswap, sendfs, stream_nv, stream_avl, + top_zfs)); + } else { + assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == + DMU_COMPOUNDSTREAM); return (zfs_receive_package(hdl, infd, tosnap, flags, &drr, &zcksum, top_zfs)); - } else { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "stream is unsupported version %llu"), - drrb->drr_version); - return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); } } @@ -2119,7 +2931,8 @@ zfs_receive(libzfs_handle_t *hdl, const char *tosnap, recvflags_t flags, char *top_zfs = NULL; int err; - err = zfs_receive_impl(hdl, tosnap, flags, infd, stream_avl, &top_zfs); + err = zfs_receive_impl(hdl, tosnap, flags, infd, NULL, NULL, + stream_avl, &top_zfs); if (err == 0 && !flags.nomount && top_zfs) { zfs_handle_t *zhp; diff --git a/lib/libzfs/libzfs_status.c b/lib/libzfs/libzfs_status.c index 44faf02af..24725ec04 100644 --- a/lib/libzfs/libzfs_status.c +++ b/lib/libzfs/libzfs_status.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -138,7 +137,7 @@ find_vdev_problem(nvlist_t *vdev, int (*func)(uint64_t, uint64_t, uint64_t)) if (find_vdev_problem(child[c], func)) return (B_TRUE); } else { - verify(nvlist_lookup_uint64_array(vdev, ZPOOL_CONFIG_STATS, + verify(nvlist_lookup_uint64_array(vdev, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &c) == 0); if (func(vs->vs_state, vs->vs_aux, @@ -173,7 +172,8 @@ check_status(nvlist_t *config, boolean_t isimport) { nvlist_t *nvroot; vdev_stat_t *vs; - uint_t vsc; + pool_scan_stat_t *ps = NULL; + uint_t vsc, psc; uint64_t nerr; uint64_t version; uint64_t stateval; @@ -184,15 +184,24 @@ check_status(nvlist_t *config, boolean_t isimport) &version) == 0); verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); - verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_STATS, + verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc) == 0); verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, &stateval) == 0); - (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid); + + /* + * Currently resilvering a vdev + */ + (void) nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_SCAN_STATS, + (uint64_t **)&ps, &psc); + if (ps && ps->pss_func == POOL_SCAN_RESILVER && + ps->pss_state == DSS_SCANNING) + return (ZPOOL_STATUS_RESILVERING); /* * Pool last accessed by another system. */ + (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid); if (hostid != 0 && (unsigned long)hostid != gethostid() && stateval == POOL_STATE_ACTIVE) return (ZPOOL_STATUS_HOSTID_MISMATCH); @@ -289,12 +298,6 @@ check_status(nvlist_t *config, boolean_t isimport) return (ZPOOL_STATUS_REMOVED_DEV); /* - * Currently resilvering - */ - if (!vs->vs_scrub_complete && vs->vs_scrub_type == POOL_SCRUB_RESILVER) - return (ZPOOL_STATUS_RESILVERING); - - /* * Outdated, but usable, version */ if (version < SPA_VERSION) @@ -328,3 +331,68 @@ zpool_import_status(nvlist_t *config, char **msgid) return (ret); } + +static void +dump_ddt_stat(const ddt_stat_t *dds, int h) +{ + char refcnt[6]; + char blocks[6], lsize[6], psize[6], dsize[6]; + char ref_blocks[6], ref_lsize[6], ref_psize[6], ref_dsize[6]; + + if (dds == NULL || dds->dds_blocks == 0) + return; + + if (h == -1) + (void) strcpy(refcnt, "Total"); + else + zfs_nicenum(1ULL << h, refcnt, sizeof (refcnt)); + + zfs_nicenum(dds->dds_blocks, blocks, sizeof (blocks)); + zfs_nicenum(dds->dds_lsize, lsize, sizeof (lsize)); + zfs_nicenum(dds->dds_psize, psize, sizeof (psize)); + zfs_nicenum(dds->dds_dsize, dsize, sizeof (dsize)); + zfs_nicenum(dds->dds_ref_blocks, ref_blocks, sizeof (ref_blocks)); + zfs_nicenum(dds->dds_ref_lsize, ref_lsize, sizeof (ref_lsize)); + zfs_nicenum(dds->dds_ref_psize, ref_psize, sizeof (ref_psize)); + zfs_nicenum(dds->dds_ref_dsize, ref_dsize, sizeof (ref_dsize)); + + (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n", + refcnt, + blocks, lsize, psize, dsize, + ref_blocks, ref_lsize, ref_psize, ref_dsize); +} + +/* + * Print the DDT histogram and the column totals. + */ +void +zpool_dump_ddt(const ddt_stat_t *dds_total, const ddt_histogram_t *ddh) +{ + int h; + + (void) printf("\n"); + + (void) printf("bucket " + " allocated " + " referenced \n"); + (void) printf("______ " + "______________________________ " + "______________________________\n"); + + (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n", + "refcnt", + "blocks", "LSIZE", "PSIZE", "DSIZE", + "blocks", "LSIZE", "PSIZE", "DSIZE"); + + (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n", + "------", + "------", "-----", "-----", "-----", + "------", "-----", "-----", "-----"); + + for (h = 0; h < 64; h++) + dump_ddt_stat(&ddh->ddh_stat[h], h); + + dump_ddt_stat(dds_total, -1); + + (void) printf("\n"); +} diff --git a/lib/libzfs/libzfs_util.c b/lib/libzfs/libzfs_util.c index 4da0fb44b..2e73f76ea 100644 --- a/lib/libzfs/libzfs_util.c +++ b/lib/libzfs/libzfs_util.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -94,8 +93,6 @@ libzfs_error_description(libzfs_handle_t *hdl) case EZFS_VOLTOOBIG: return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for " "this system")); - case EZFS_VOLHASDATA: - return (dgettext(TEXT_DOMAIN, "volume has data")); case EZFS_INVALIDNAME: return (dgettext(TEXT_DOMAIN, "invalid name")); case EZFS_BADRESTORE: @@ -138,16 +135,12 @@ libzfs_error_description(libzfs_handle_t *hdl) return (dgettext(TEXT_DOMAIN, "smb remove share failed")); case EZFS_SHARESMBFAILED: return (dgettext(TEXT_DOMAIN, "smb add share failed")); - case EZFS_ISCSISVCUNAVAIL: - return (dgettext(TEXT_DOMAIN, - "iscsitgt service need to be enabled by " - "a privileged user")); - case EZFS_DEVLINKS: - return (dgettext(TEXT_DOMAIN, "failed to create /dev links")); case EZFS_PERM: return (dgettext(TEXT_DOMAIN, "permission denied")); case EZFS_NOSPC: return (dgettext(TEXT_DOMAIN, "out of space")); + case EZFS_FAULT: + return (dgettext(TEXT_DOMAIN, "bad address")); case EZFS_IO: return (dgettext(TEXT_DOMAIN, "I/O error")); case EZFS_INTR: @@ -161,12 +154,6 @@ libzfs_error_description(libzfs_handle_t *hdl) return (dgettext(TEXT_DOMAIN, "recursive dataset dependency")); case EZFS_NOHISTORY: return (dgettext(TEXT_DOMAIN, "no history available")); - case EZFS_UNSHAREISCSIFAILED: - return (dgettext(TEXT_DOMAIN, - "iscsitgtd failed request to unshare")); - case EZFS_SHAREISCSIFAILED: - return (dgettext(TEXT_DOMAIN, - "iscsitgtd failed request to share")); case EZFS_POOLPROPS: return (dgettext(TEXT_DOMAIN, "failed to retrieve " "pool properties")); @@ -218,6 +205,20 @@ libzfs_error_description(libzfs_handle_t *hdl) case EZFS_REFTAG_HOLD: return (dgettext(TEXT_DOMAIN, "tag already exists on this " "dataset")); + case EZFS_TAGTOOLONG: + return (dgettext(TEXT_DOMAIN, "tag too long")); + case EZFS_PIPEFAILED: + return (dgettext(TEXT_DOMAIN, "pipe create failed")); + case EZFS_THREADCREATEFAILED: + return (dgettext(TEXT_DOMAIN, "thread create failed")); + case EZFS_POSTSPLIT_ONLINE: + return (dgettext(TEXT_DOMAIN, "disk was split from this pool " + "into a new one")); + case EZFS_SCRUBBING: + return (dgettext(TEXT_DOMAIN, "currently scrubbing; " + "use 'zpool scrub -s' to cancel current scrub")); + case EZFS_NO_SCRUB: + return (dgettext(TEXT_DOMAIN, "there is no active scrub")); case EZFS_UNKNOWN: return (dgettext(TEXT_DOMAIN, "unknown error")); default: @@ -306,6 +307,10 @@ zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt, zfs_verror(hdl, EZFS_IO, fmt, ap); return (-1); + case EFAULT: + zfs_verror(hdl, EZFS_FAULT, fmt, ap); + return (-1); + case EINTR: zfs_verror(hdl, EZFS_INTR, fmt, ap); return (-1); @@ -378,7 +383,7 @@ zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap); break; default: - zfs_error_aux(hdl, strerror(errno)); + zfs_error_aux(hdl, strerror(error)); zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); break; } @@ -610,6 +615,7 @@ libzfs_fini(libzfs_handle_t *hdl) if (hdl->libzfs_log_str) (void) free(hdl->libzfs_log_str); zpool_free_handles(hdl); + libzfs_fru_clear(hdl, B_TRUE); namespace_clear(hdl); libzfs_mnttab_fini(hdl); free(hdl); @@ -686,7 +692,7 @@ int zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len) { if (len == 0) - len = 2048; + len = 4*1024; zc->zc_nvlist_dst_size = len; if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t) zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == NULL) @@ -812,6 +818,8 @@ zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) "PROPERTY")); cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN, "VALUE")); + cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN, + "RECEIVED")); cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN, "SOURCE")); @@ -825,7 +833,7 @@ zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) * inheriting from the longest name. This is acceptable because in the * majority of cases 'SOURCE' is the last column displayed, and we don't * use the width anyway. Note that the 'VALUE' column can be oversized, - * if the name of the property is much longer the any values we find. + * if the name of the property is much longer than any values we find. */ for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) { /* @@ -856,6 +864,11 @@ zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE]) cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width; + /* 'RECEIVED' column. */ + if (pl != cbp->cb_proplist && + pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD]) + cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width; + /* * 'NAME' and 'SOURCE' columns */ @@ -871,7 +884,7 @@ zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) /* * Now go through and print the headers. */ - for (i = 0; i < 4; i++) { + for (i = 0; i < ZFS_GET_NCOLS; i++) { switch (cbp->cb_columns[i]) { case GET_COL_NAME: title = dgettext(TEXT_DOMAIN, "NAME"); @@ -882,6 +895,9 @@ zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) case GET_COL_VALUE: title = dgettext(TEXT_DOMAIN, "VALUE"); break; + case GET_COL_RECVD: + title = dgettext(TEXT_DOMAIN, "RECEIVED"); + break; case GET_COL_SOURCE: title = dgettext(TEXT_DOMAIN, "SOURCE"); break; @@ -890,7 +906,8 @@ zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) } if (title != NULL) { - if (i == 3 || cbp->cb_columns[i + 1] == 0) + if (i == (ZFS_GET_NCOLS - 1) || + cbp->cb_columns[i + 1] == GET_COL_NONE) (void) printf("%s", title); else (void) printf("%-*s ", @@ -908,7 +925,7 @@ zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) void zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp, const char *propname, const char *value, zprop_source_t sourcetype, - const char *source) + const char *source, const char *recvd_value) { int i; const char *str; @@ -923,7 +940,7 @@ zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp, if (cbp->cb_first) zprop_print_headers(cbp, cbp->cb_type); - for (i = 0; i < 4; i++) { + for (i = 0; i < ZFS_GET_NCOLS; i++) { switch (cbp->cb_columns[i]) { case GET_COL_NAME: str = name; @@ -960,14 +977,21 @@ zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp, "inherited from %s", source); str = buf; break; + case ZPROP_SRC_RECEIVED: + str = "received"; + break; } break; + case GET_COL_RECVD: + str = (recvd_value == NULL ? "-" : recvd_value); + break; + default: continue; } - if (cbp->cb_columns[i + 1] == 0) + if (cbp->cb_columns[i + 1] == GET_COL_NONE) (void) printf("%s", str); else if (cbp->cb_scripted) (void) printf("%s\t", str); @@ -975,7 +999,6 @@ zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp, (void) printf("%-*s ", cbp->cb_colwidths[cbp->cb_columns[i]], str); - } (void) printf("\n"); @@ -1037,7 +1060,7 @@ zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num) return (-1); } - /* Rely on stroull() to process the numeric portion. */ + /* Rely on strtoull() to process the numeric portion. */ errno = 0; *num = strtoull(value, &end, 10); diff --git a/lib/libzpool/include/sys/zfs_context.h b/lib/libzpool/include/sys/zfs_context.h index 230c233a2..9a6d712e5 100644 --- a/lib/libzpool/include/sys/zfs_context.h +++ b/lib/libzpool/include/sys/zfs_context.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -75,6 +75,7 @@ extern "C" { #include <sys/u8_textprep.h> #include <sys/sysevent/eventdefs.h> #include <sys/sysevent/dev.h> +#include <sys/sunddi.h> /* * Debugging @@ -105,21 +106,27 @@ extern void vpanic(const char *, __va_list); #define fm_panic panic +extern int aok; + /* This definition is copied from assert.h. */ #if defined(__STDC__) #if __STDC_VERSION__ - 0 >= 199901L -#define verify(EX) (void)((EX) || \ +#define zverify(EX) (void)((EX) || (aok) || \ (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) #else -#define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) +#define zverify(EX) (void)((EX) || (aok) || \ + (__assert(#EX, __FILE__, __LINE__), 0)) #endif /* __STDC_VERSION__ - 0 >= 199901L */ #else -#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) +#define zverify(EX) (void)((EX) || (aok) || \ + (_assert("EX", __FILE__, __LINE__), 0)) #endif /* __STDC__ */ -#define VERIFY verify -#define ASSERT assert +#define VERIFY zverify +#define ASSERT zverify +#undef assert +#define assert zverify extern void __assert(const char *, const char *, int); @@ -130,7 +137,7 @@ extern void __assert(const char *, const char *, int); #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ const TYPE __left = (TYPE)(LEFT); \ const TYPE __right = (TYPE)(RIGHT); \ - if (!(__left OP __right)) { \ + if (!(__left OP __right) && (!aok)) { \ char *__buf = alloca(256); \ (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ #LEFT, #OP, #RIGHT, \ @@ -196,6 +203,18 @@ typedef struct kthread kthread_t; #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ zk_thread_create(func, arg) #define thread_exit() thr_exit(NULL) +#define thread_join(t) panic("libzpool cannot join threads") + +#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) + +/* in libzpool, p0 exists only to have its address taken */ +struct proc { + uintptr_t this_is_never_used_dont_dereference_it; +}; + +extern struct proc p0; + +#define PS_NONE -1 extern kthread_t *zk_thread_create(void (*func)(), void *arg); @@ -318,20 +337,27 @@ typedef void (task_func_t)(void *); #define TASKQ_PREPOPULATE 0x0001 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ -#define TASKQ_THREADS_CPU_PCT 0x0008 /* Use dynamic thread scheduling */ +#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */ +#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */ #define TQ_SLEEP KM_SLEEP /* Can block for memory */ #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ -#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ +#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ +#define TQ_FRONT 0x08 /* Queue in front */ extern taskq_t *system_taskq; extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); +#define taskq_create_proc(a, b, c, d, e, p, f) \ + (taskq_create(a, b, c, d, e, f)) +#define taskq_create_sysdc(a, b, d, e, p, dc, f) \ + (taskq_create(a, b, maxclsyspri, d, e, f)) extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); extern void taskq_destroy(taskq_t *); extern void taskq_wait(taskq_t *); extern int taskq_member(taskq_t *, void *); extern void system_taskq_init(void); +extern void system_taskq_fini(void); #define XVA_MAPSIZE 3 #define XVA_MAGIC 0x78766174 @@ -345,6 +371,7 @@ typedef struct vnode { char *v_path; } vnode_t; +#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */ typedef struct xoptattr { timestruc_t xoa_createtime; /* Create time of file */ @@ -360,6 +387,8 @@ typedef struct xoptattr { uint8_t xoa_opaque; uint8_t xoa_av_quarantined; uint8_t xoa_av_modified; + uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ]; + uint8_t xoa_reparse; } xoptattr_t; typedef struct vattr { @@ -406,9 +435,11 @@ typedef struct vsecattr { #define CRCREAT 0 +extern int fop_getattr(vnode_t *vp, vattr_t *vap); + #define VOP_CLOSE(vp, f, c, o, cr, ct) 0 #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0 -#define VOP_GETATTR(vp, vap, fl, cr, ct) ((vap)->va_size = (vp)->v_size, 0) +#define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap)); #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd) @@ -433,13 +464,18 @@ extern vnode_t *rootdir; /* * Random stuff */ -#define lbolt (gethrtime() >> 23) -#define lbolt64 (gethrtime() >> 23) +#define ddi_get_lbolt() (gethrtime() >> 23) +#define ddi_get_lbolt64() (gethrtime() >> 23) #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ extern void delay(clock_t ticks); #define gethrestime_sec() time(NULL) +#define gethrestime(t) \ + do {\ + (t)->tv_sec = gethrestime_sec();\ + (t)->tv_nsec = 0;\ + } while (0); #define max_ncpus 64 @@ -490,6 +526,9 @@ typedef struct callb_cpr { #define zone_dataset_visible(x, y) (1) #define INGLOBALZONE(z) (1) +extern char *kmem_asprintf(const char *fmt, ...); +#define strfree(str) kmem_free((str), strlen(str)+1) + /* * Hostname information */ @@ -497,6 +536,9 @@ extern char hw_serial[]; /* for userland-emulated hostid access */ extern int ddi_strtoul(const char *str, char **nptr, int base, unsigned long *result); +extern int ddi_strtoull(const char *str, char **nptr, int base, + u_longlong_t *result); + /* ZFS Boot Related stuff. */ struct _buf { diff --git a/lib/libzpool/kernel.c b/lib/libzpool/kernel.c index 89108fe5b..5284c1253 100644 --- a/lib/libzpool/kernel.c +++ b/lib/libzpool/kernel.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -42,6 +42,7 @@ * Emulation of kernel services in userland. */ +int aok; uint64_t physmem; vnode_t *rootdir = (vnode_t *)0xabcd1234; char hw_serial[HW_HOSTID_LEN]; @@ -50,6 +51,9 @@ struct utsname utsname = { "userland", "libzpool", "1", "1", "na" }; +/* this only exists to have its address taken */ +struct proc p0; + /* * ========================================================================= * threads @@ -269,7 +273,7 @@ cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime) clock_t delta; top: - delta = abstime - lbolt; + delta = abstime - ddi_get_lbolt(); if (delta <= 0) return (-1); @@ -444,6 +448,24 @@ vn_close(vnode_t *vp) umem_free(vp, sizeof (vnode_t)); } +/* + * At a minimum we need to update the size since vdev_reopen() + * will no longer call vn_openat(). + */ +int +fop_getattr(vnode_t *vp, vattr_t *vap) +{ + struct stat64 st; + + if (fstat64(vp->v_fd, &st) == -1) { + close(vp->v_fd); + return (errno); + } + + vap->va_size = st.st_size; + return (0); +} + #ifdef ZFS_DEBUG /* @@ -754,6 +776,17 @@ ddi_strtoul(const char *hw_serial, char **nptr, int base, unsigned long *result) return (0); } +int +ddi_strtoull(const char *str, char **nptr, int base, u_longlong_t *result) +{ + char *end; + + *result = strtoull(str, &end, base); + if (*result == 0) + return (errno); + return (0); +} + /* * ========================================================================= * kernel emulation setup & teardown @@ -779,7 +812,8 @@ kernel_init(int mode) dprintf("physmem = %llu pages (%.2f GB)\n", physmem, (double)physmem * sysconf(_SC_PAGE_SIZE) / (1ULL << 30)); - (void) snprintf(hw_serial, sizeof (hw_serial), "%ld", gethostid()); + (void) snprintf(hw_serial, sizeof (hw_serial), "%ld", + (mode & FWRITE) ? gethostid() : 0); VERIFY((random_fd = open("/dev/random", O_RDONLY)) != -1); VERIFY((urandom_fd = open("/dev/urandom", O_RDONLY)) != -1); @@ -794,6 +828,8 @@ kernel_fini(void) { spa_fini(); + system_taskq_fini(); + close(random_fd); close(urandom_fd); @@ -884,3 +920,27 @@ ksiddomain_rele(ksiddomain_t *ksid) spa_strfree(ksid->kd_name); umem_free(ksid, sizeof (ksiddomain_t)); } + +/* + * Do not change the length of the returned string; it must be freed + * with strfree(). + */ +char * +kmem_asprintf(const char *fmt, ...) +{ + int size; + va_list adx; + char *buf; + + va_start(adx, fmt); + size = vsnprintf(NULL, 0, fmt, adx) + 1; + va_end(adx); + + buf = kmem_alloc(size, KM_SLEEP); + + va_start(adx, fmt); + size = vsnprintf(buf, size, fmt, adx); + va_end(adx); + + return (buf); +} diff --git a/lib/libzpool/taskq.c b/lib/libzpool/taskq.c index 1a73fe83c..8db5d11c1 100644 --- a/lib/libzpool/taskq.c +++ b/lib/libzpool/taskq.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -49,6 +49,8 @@ struct taskq { int tq_nalloc; int tq_minalloc; int tq_maxalloc; + kcondvar_t tq_maxalloc_cv; + int tq_maxalloc_wait; task_t *tq_freelist; task_t tq_task; }; @@ -57,26 +59,36 @@ static task_t * task_alloc(taskq_t *tq, int tqflags) { task_t *t; + int rv; - if ((t = tq->tq_freelist) != NULL && tq->tq_nalloc >= tq->tq_minalloc) { +again: if ((t = tq->tq_freelist) != NULL && tq->tq_nalloc >= tq->tq_minalloc) { tq->tq_freelist = t->task_next; } else { - mutex_exit(&tq->tq_lock); if (tq->tq_nalloc >= tq->tq_maxalloc) { - if (!(tqflags & KM_SLEEP)) { - mutex_enter(&tq->tq_lock); + if (!(tqflags & KM_SLEEP)) return (NULL); - } + /* * We don't want to exceed tq_maxalloc, but we can't * wait for other tasks to complete (and thus free up * task structures) without risking deadlock with * the caller. So, we just delay for one second - * to throttle the allocation rate. + * to throttle the allocation rate. If we have tasks + * complete before one second timeout expires then + * taskq_ent_free will signal us and we will + * immediately retry the allocation. */ - delay(hz); + tq->tq_maxalloc_wait++; + rv = cv_timedwait(&tq->tq_maxalloc_cv, + &tq->tq_lock, ddi_get_lbolt() + hz); + tq->tq_maxalloc_wait--; + if (rv > 0) + goto again; /* signaled */ } + mutex_exit(&tq->tq_lock); + t = kmem_alloc(sizeof (task_t), tqflags); + mutex_enter(&tq->tq_lock); if (t != NULL) tq->tq_nalloc++; @@ -96,6 +108,9 @@ task_free(taskq_t *tq, task_t *t) kmem_free(t, sizeof (task_t)); mutex_enter(&tq->tq_lock); } + + if (tq->tq_maxalloc_wait) + cv_signal(&tq->tq_maxalloc_cv); } taskqid_t @@ -114,8 +129,13 @@ taskq_dispatch(taskq_t *tq, task_func_t func, void *arg, uint_t tqflags) mutex_exit(&tq->tq_lock); return (0); } - t->task_next = &tq->tq_task; - t->task_prev = tq->tq_task.task_prev; + if (tqflags & TQ_FRONT) { + t->task_next = tq->tq_task.task_next; + t->task_prev = &tq->tq_task; + } else { + t->task_next = &tq->tq_task; + t->task_prev = tq->tq_task.task_prev; + } t->task_next->task_prev = t; t->task_prev->task_next = t; t->task_func = func; @@ -191,6 +211,7 @@ taskq_create(const char *name, int nthreads, pri_t pri, mutex_init(&tq->tq_lock, NULL, MUTEX_DEFAULT, NULL); cv_init(&tq->tq_dispatch_cv, NULL, CV_DEFAULT, NULL); cv_init(&tq->tq_wait_cv, NULL, CV_DEFAULT, NULL); + cv_init(&tq->tq_maxalloc_cv, NULL, CV_DEFAULT, NULL); tq->tq_flags = flags | TASKQ_ACTIVE; tq->tq_active = nthreads; tq->tq_nthreads = nthreads; @@ -247,6 +268,7 @@ taskq_destroy(taskq_t *tq) mutex_destroy(&tq->tq_lock); cv_destroy(&tq->tq_dispatch_cv); cv_destroy(&tq->tq_wait_cv); + cv_destroy(&tq->tq_maxalloc_cv); kmem_free(tq, sizeof (taskq_t)); } @@ -272,3 +294,10 @@ system_taskq_init(void) system_taskq = taskq_create("system_taskq", 64, minclsyspri, 4, 512, TASKQ_DYNAMIC | TASKQ_PREPOPULATE); } + +void +system_taskq_fini(void) +{ + taskq_destroy(system_taskq); + system_taskq = NULL; /* defensive */ +} diff --git a/lib/libzpool/util.c b/lib/libzpool/util.c index 781edb6e8..9b99531fd 100644 --- a/lib/libzpool/util.c +++ b/lib/libzpool/util.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <assert.h> @@ -90,7 +89,7 @@ show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent) if (is_log) prefix = "log "; - if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, + if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &c) != 0) vs = &v0; diff --git a/module/avl/avl.c b/module/avl/avl.c index c9727c643..dd39c12d2 100644 --- a/module/avl/avl.c +++ b/module/avl/avl.c @@ -19,13 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - - /* * AVL - generic AVL tree implementation for kernel use * @@ -243,7 +240,7 @@ avl_nearest(avl_tree_t *tree, avl_index_t where, int direction) * "void *" of the found tree node */ void * -avl_find(avl_tree_t *tree, void *value, avl_index_t *where) +avl_find(avl_tree_t *tree, const void *value, avl_index_t *where) { avl_node_t *node; avl_node_t *prev = NULL; diff --git a/module/avl/include/sys/avl.h b/module/avl/include/sys/avl.h index 02263a5a0..ba305c908 100644 --- a/module/avl/include/sys/avl.h +++ b/module/avl/include/sys/avl.h @@ -19,15 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _AVL_H #define _AVL_H -#pragma ident "%Z%%M% %I% %E% SMI" - /* * This is a private header file. Applications should not directly include * this file. @@ -163,7 +161,7 @@ extern void avl_create(avl_tree_t *tree, * node - node that has the value being looked for * where - position for use with avl_nearest() or avl_insert(), may be NULL */ -extern void *avl_find(avl_tree_t *tree, void *node, avl_index_t *where); +extern void *avl_find(avl_tree_t *tree, const void *node, avl_index_t *where); /* * Insert a node into the tree. diff --git a/module/nvpair/include/sys/nvpair.h b/module/nvpair/include/sys/nvpair.h index 9e768541f..58037b065 100644 --- a/module/nvpair/include/sys/nvpair.h +++ b/module/nvpair/include/sys/nvpair.h @@ -19,15 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_NVPAIR_H #define _SYS_NVPAIR_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/types.h> #include <sys/errno.h> #include <sys/va_list.h> @@ -199,6 +197,7 @@ int nvlist_add_double(nvlist_t *, const char *, double); int nvlist_remove(nvlist_t *, const char *, data_type_t); int nvlist_remove_all(nvlist_t *, const char *); +int nvlist_remove_nvpair(nvlist_t *, nvpair_t *); int nvlist_lookup_boolean(nvlist_t *, const char *); int nvlist_lookup_boolean_value(nvlist_t *, const char *, boolean_t *); @@ -237,9 +236,11 @@ int nvlist_lookup_nvpair(nvlist_t *, const char *, nvpair_t **); int nvlist_lookup_nvpair_embedded_index(nvlist_t *, const char *, nvpair_t **, int *, char **); boolean_t nvlist_exists(nvlist_t *, const char *); +boolean_t nvlist_empty(nvlist_t *); /* processing nvpair */ nvpair_t *nvlist_next_nvpair(nvlist_t *, nvpair_t *); +nvpair_t *nvlist_prev_nvpair(nvlist_t *, nvpair_t *); char *nvpair_name(nvpair_t *); data_type_t nvpair_type(nvpair_t *); int nvpair_type_is_array(nvpair_t *); diff --git a/module/nvpair/nvpair.c b/module/nvpair/nvpair.c index 77891bf77..8115091ab 100644 --- a/module/nvpair/nvpair.c +++ b/module/nvpair/nvpair.c @@ -20,12 +20,10 @@ */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/stropts.h> #include <sys/debug.h> #include <sys/isa_defs.h> @@ -692,6 +690,18 @@ nvlist_remove(nvlist_t *nvl, const char *name, data_type_t type) return (ENOENT); } +int +nvlist_remove_nvpair(nvlist_t *nvl, nvpair_t *nvp) +{ + if (nvl == NULL || nvp == NULL) + return (EINVAL); + + nvp_buf_unlink(nvl, nvp); + nvpair_free(nvp); + nvp_buf_free(nvl, nvp); + return (0); +} + /* * This function calculates the size of an nvpair value. * @@ -1162,6 +1172,42 @@ nvlist_next_nvpair(nvlist_t *nvl, nvpair_t *nvp) return (curr != NULL ? &curr->nvi_nvp : NULL); } +nvpair_t * +nvlist_prev_nvpair(nvlist_t *nvl, nvpair_t *nvp) +{ + nvpriv_t *priv; + i_nvp_t *curr; + + if (nvl == NULL || + (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) + return (NULL); + + curr = NVPAIR2I_NVP(nvp); + + if (nvp == NULL) + curr = priv->nvp_last; + else if (priv->nvp_curr == curr || nvlist_contains_nvp(nvl, nvp)) + curr = curr->nvi_prev; + else + curr = NULL; + + priv->nvp_curr = curr; + + return (curr != NULL ? &curr->nvi_nvp : NULL); +} + +boolean_t +nvlist_empty(nvlist_t *nvl) +{ + nvpriv_t *priv; + + if (nvl == NULL || + (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) + return (B_TRUE); + + return (priv->nvp_list == NULL); +} + char * nvpair_name(nvpair_t *nvp) { diff --git a/module/zcommon/include/sys/fs/zfs.h b/module/zcommon/include/sys/fs/zfs.h index 86b36a8ae..3c95c91dd 100644 --- a/module/zcommon/include/sys/fs/zfs.h +++ b/module/zcommon/include/sys/fs/zfs.h @@ -20,10 +20,11 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #ifndef _SYS_FS_ZFS_H #define _SYS_FS_ZFS_H @@ -86,12 +87,11 @@ typedef enum { ZFS_PROP_READONLY, ZFS_PROP_ZONED, ZFS_PROP_SNAPDIR, - ZFS_PROP_ACLMODE, + ZFS_PROP_PRIVATE, /* not exposed to user, temporary */ ZFS_PROP_ACLINHERIT, ZFS_PROP_CREATETXG, /* not exposed to the user */ ZFS_PROP_NAME, /* not exposed to the user */ ZFS_PROP_CANMOUNT, - ZFS_PROP_SHAREISCSI, ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */ ZFS_PROP_XATTR, ZFS_PROP_NUMCLONES, /* not exposed to the user */ @@ -116,6 +116,12 @@ typedef enum { ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */ ZFS_PROP_DEFER_DESTROY, ZFS_PROP_USERREFS, + ZFS_PROP_LOGBIAS, + ZFS_PROP_UNIQUE, /* not exposed to the user */ + ZFS_PROP_OBJSETID, /* not exposed to the user */ + ZFS_PROP_DEDUP, + ZFS_PROP_MLSLABEL, + ZFS_PROP_SYNC, ZFS_NUM_PROPS } zfs_prop_t; @@ -138,8 +144,6 @@ extern const char *zfs_userquota_prop_prefixes[ZFS_NUM_USERQUOTA_PROPS]; typedef enum { ZPOOL_PROP_NAME, ZPOOL_PROP_SIZE, - ZPOOL_PROP_USED, - ZPOOL_PROP_AVAILABLE, ZPOOL_PROP_CAPACITY, ZPOOL_PROP_ALTROOT, ZPOOL_PROP_HEALTH, @@ -152,6 +156,10 @@ typedef enum { ZPOOL_PROP_FAILUREMODE, ZPOOL_PROP_LISTSNAPS, ZPOOL_PROP_AUTOEXPAND, + ZPOOL_PROP_DEDUPDITTO, + ZPOOL_PROP_DEDUPRATIO, + ZPOOL_PROP_FREE, + ZPOOL_PROP_ALLOCATED, ZPOOL_NUM_PROPS } zpool_prop_t; @@ -166,10 +174,27 @@ typedef enum { ZPROP_SRC_DEFAULT = 0x2, ZPROP_SRC_TEMPORARY = 0x4, ZPROP_SRC_LOCAL = 0x8, - ZPROP_SRC_INHERITED = 0x10 + ZPROP_SRC_INHERITED = 0x10, + ZPROP_SRC_RECEIVED = 0x20 } zprop_source_t; -#define ZPROP_SRC_ALL 0x1f +#define ZPROP_SRC_ALL 0x3f + +#define ZPROP_SOURCE_VAL_RECVD "$recvd" +#define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS" +/* + * Dataset flag implemented as a special entry in the props zap object + * indicating that the dataset has received properties on or after + * SPA_VERSION_RECVD_PROPS. The first such receive blows away local properties + * just as it did in earlier versions, and thereafter, local properties are + * preserved. + */ +#define ZPROP_HAS_RECVD "$hasrecvd" + +typedef enum { + ZPROP_ERR_NOCLEAR = 0x1, /* failure to clear existing props */ + ZPROP_ERR_NORESTORE = 0x2 /* failure to restore props on error */ +} zprop_errflags_t; typedef int (*zprop_func)(int, void *); @@ -191,9 +216,10 @@ boolean_t zfs_prop_setonce(zfs_prop_t); const char *zfs_prop_to_name(zfs_prop_t); zfs_prop_t zfs_name_to_prop(const char *); boolean_t zfs_prop_user(const char *); -boolean_t zfs_prop_userquota(const char *name); +boolean_t zfs_prop_userquota(const char *); int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **); int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *); +uint64_t zfs_prop_random_value(zfs_prop_t, uint64_t seed); boolean_t zfs_prop_valid_for_type(int, zfs_type_t); /* @@ -206,6 +232,7 @@ uint64_t zpool_prop_default_numeric(zpool_prop_t); boolean_t zpool_prop_readonly(zpool_prop_t); int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **); int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *); +uint64_t zpool_prop_random_value(zpool_prop_t, uint64_t seed); /* * Definitions for the Delegation. @@ -236,6 +263,8 @@ typedef enum { #define ZFS_DELEG_PERM_GID "gid" #define ZFS_DELEG_PERM_GROUPS "groups" +#define ZFS_MLSLABEL_DEFAULT "none" + #define ZFS_SMB_ACL_SRC "src" #define ZFS_SMB_ACL_TARGET "target" @@ -245,6 +274,11 @@ typedef enum { ZFS_CANMOUNT_NOAUTO = 2 } zfs_canmount_type_t; +typedef enum { + ZFS_LOGBIAS_LATENCY = 0, + ZFS_LOGBIAS_THROUGHPUT = 1 +} zfs_logbias_op_t; + typedef enum zfs_share_op { ZFS_SHARE_NFS = 0, ZFS_UNSHARE_NFS = 1, @@ -265,6 +299,12 @@ typedef enum zfs_cache_type { ZFS_CACHE_ALL = 2 } zfs_cache_type_t; +typedef enum { + ZFS_SYNC_STANDARD = 0, + ZFS_SYNC_ALWAYS = 1, + ZFS_SYNC_DISABLED = 2 +} zfs_sync_type_t; + /* * On-disk version number. @@ -287,14 +327,22 @@ typedef enum zfs_cache_type { #define SPA_VERSION_16 16ULL #define SPA_VERSION_17 17ULL #define SPA_VERSION_18 18ULL +#define SPA_VERSION_19 19ULL +#define SPA_VERSION_20 20ULL +#define SPA_VERSION_21 21ULL +#define SPA_VERSION_22 22ULL +#define SPA_VERSION_23 23ULL +#define SPA_VERSION_24 24ULL +#define SPA_VERSION_25 25ULL +#define SPA_VERSION_26 26ULL /* * When bumping up SPA_VERSION, make sure GRUB ZFS understands the on-disk * format change. Go to usr/src/grub/grub-0.97/stage2/{zfs-include/, fsys_zfs*}, * and do the appropriate changes. Also bump the version number in * usr/src/grub/capability. */ -#define SPA_VERSION SPA_VERSION_18 -#define SPA_VERSION_STRING "18" +#define SPA_VERSION SPA_VERSION_26 +#define SPA_VERSION_STRING "26" /* * Symbolic names for the changes that caused a SPA_VERSION switch. @@ -311,7 +359,7 @@ typedef enum zfs_cache_type { #define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2 #define SPA_VERSION_SPARES SPA_VERSION_3 #define SPA_VERSION_RAIDZ2 SPA_VERSION_3 -#define SPA_VERSION_BPLIST_ACCOUNT SPA_VERSION_3 +#define SPA_VERSION_BPOBJ_ACCOUNT SPA_VERSION_3 #define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3 #define SPA_VERSION_DNODE_BYTES SPA_VERSION_3 #define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4 @@ -334,6 +382,15 @@ typedef enum zfs_cache_type { #define SPA_VERSION_STMF_PROP SPA_VERSION_16 #define SPA_VERSION_RAIDZ3 SPA_VERSION_17 #define SPA_VERSION_USERREFS SPA_VERSION_18 +#define SPA_VERSION_HOLES SPA_VERSION_19 +#define SPA_VERSION_ZLE_COMPRESSION SPA_VERSION_20 +#define SPA_VERSION_DEDUP SPA_VERSION_21 +#define SPA_VERSION_RECVD_PROPS SPA_VERSION_22 +#define SPA_VERSION_SLIM_ZIL SPA_VERSION_23 +#define SPA_VERSION_SA SPA_VERSION_24 +#define SPA_VERSION_SCAN SPA_VERSION_25 +#define SPA_VERSION_DIR_CLONES SPA_VERSION_26 +#define SPA_VERSION_DEADLISTS SPA_VERSION_26 /* * ZPL version - rev'd whenever an incompatible on-disk format change @@ -347,8 +404,9 @@ typedef enum zfs_cache_type { #define ZPL_VERSION_2 2ULL #define ZPL_VERSION_3 3ULL #define ZPL_VERSION_4 4ULL -#define ZPL_VERSION ZPL_VERSION_4 -#define ZPL_VERSION_STRING "4" +#define ZPL_VERSION_5 5ULL +#define ZPL_VERSION ZPL_VERSION_5 +#define ZPL_VERSION_STRING "5" #define ZPL_VERSION_INITIAL ZPL_VERSION_1 #define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2 @@ -356,6 +414,23 @@ typedef enum zfs_cache_type { #define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3 #define ZPL_VERSION_SYSATTR ZPL_VERSION_3 #define ZPL_VERSION_USERSPACE ZPL_VERSION_4 +#define ZPL_VERSION_SA ZPL_VERSION_5 + +/* Rewind request information */ +#define ZPOOL_NO_REWIND 1 /* No policy - default behavior */ +#define ZPOOL_NEVER_REWIND 2 /* Do not search for best txg or rewind */ +#define ZPOOL_TRY_REWIND 4 /* Search for best txg, but do not rewind */ +#define ZPOOL_DO_REWIND 8 /* Rewind to best txg w/in deferred frees */ +#define ZPOOL_EXTREME_REWIND 16 /* Allow extreme measures to find best txg */ +#define ZPOOL_REWIND_MASK 28 /* All the possible rewind bits */ +#define ZPOOL_REWIND_POLICIES 31 /* All the possible policy bits */ + +typedef struct zpool_rewind_policy { + uint32_t zrp_request; /* rewind behavior requested */ + uint64_t zrp_maxmeta; /* max acceptable meta-data errors */ + uint64_t zrp_maxdata; /* max acceptable data errors */ + uint64_t zrp_txg; /* specific txg to load */ +} zpool_rewind_policy_t; /* * The following are configuration names used in the nvlist describing a pool's @@ -380,7 +455,8 @@ typedef enum zfs_cache_type { #define ZPOOL_CONFIG_ASHIFT "ashift" #define ZPOOL_CONFIG_ASIZE "asize" #define ZPOOL_CONFIG_DTL "DTL" -#define ZPOOL_CONFIG_STATS "stats" +#define ZPOOL_CONFIG_SCAN_STATS "scan_stats" /* not stored on disk */ +#define ZPOOL_CONFIG_VDEV_STATS "vdev_stats" /* not stored on disk */ #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" #define ZPOOL_CONFIG_ERRCOUNT "error_count" #define ZPOOL_CONFIG_NOT_PRESENT "not_present" @@ -393,6 +469,17 @@ typedef enum zfs_cache_type { #define ZPOOL_CONFIG_PHYS_PATH "phys_path" #define ZPOOL_CONFIG_IS_LOG "is_log" #define ZPOOL_CONFIG_L2CACHE "l2cache" +#define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" +#define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" +#define ZPOOL_CONFIG_IS_HOLE "is_hole" +#define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" +#define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" +#define ZPOOL_CONFIG_DDT_STATS "ddt_stats" +#define ZPOOL_CONFIG_SPLIT "splitcfg" +#define ZPOOL_CONFIG_ORIG_GUID "orig_guid" +#define ZPOOL_CONFIG_SPLIT_GUID "split_guid" +#define ZPOOL_CONFIG_SPLIT_LIST "guid_list" +#define ZPOOL_CONFIG_REMOVING "removing" #define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */ #define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */ #define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */ @@ -406,6 +493,19 @@ typedef enum zfs_cache_type { #define ZPOOL_CONFIG_DEGRADED "degraded" #define ZPOOL_CONFIG_REMOVED "removed" #define ZPOOL_CONFIG_FRU "fru" +#define ZPOOL_CONFIG_AUX_STATE "aux_state" + +/* Rewind policy parameters */ +#define ZPOOL_REWIND_POLICY "rewind-policy" +#define ZPOOL_REWIND_REQUEST "rewind-request" +#define ZPOOL_REWIND_REQUEST_TXG "rewind-request-txg" +#define ZPOOL_REWIND_META_THRESH "rewind-meta-thresh" +#define ZPOOL_REWIND_DATA_THRESH "rewind-data-thresh" + +/* Rewind data discovered */ +#define ZPOOL_CONFIG_LOAD_TIME "rewind_txg_ts" +#define ZPOOL_CONFIG_LOAD_DATA_ERRORS "verify_data_errors" +#define ZPOOL_CONFIG_REWIND_TIME "seconds_of_rewind" #define VDEV_TYPE_ROOT "root" #define VDEV_TYPE_MIRROR "mirror" @@ -414,6 +514,7 @@ typedef enum zfs_cache_type { #define VDEV_TYPE_DISK "disk" #define VDEV_TYPE_FILE "file" #define VDEV_TYPE_MISSING "missing" +#define VDEV_TYPE_HOLE "hole" #define VDEV_TYPE_SPARE "spare" #define VDEV_TYPE_LOG "log" #define VDEV_TYPE_L2CACHE "l2cache" @@ -463,7 +564,9 @@ typedef enum vdev_aux { VDEV_AUX_SPARED, /* hot spare used in another pool */ VDEV_AUX_ERR_EXCEEDED, /* too many errors */ VDEV_AUX_IO_FAILURE, /* experienced I/O failure */ - VDEV_AUX_BAD_LOG /* cannot read log chain(s) */ + VDEV_AUX_BAD_LOG, /* cannot read log chain(s) */ + VDEV_AUX_EXTERNAL, /* external diagnosis */ + VDEV_AUX_SPLIT_POOL /* vdev was split off into another pool */ } vdev_aux_t; /* @@ -484,14 +587,14 @@ typedef enum pool_state { } pool_state_t; /* - * Scrub types. + * Scan Functions. */ -typedef enum pool_scrub_type { - POOL_SCRUB_NONE, - POOL_SCRUB_RESILVER, - POOL_SCRUB_EVERYTHING, - POOL_SCRUB_TYPES -} pool_scrub_type_t; +typedef enum pool_scan_func { + POOL_SCAN_NONE, + POOL_SCAN_SCRUB, + POOL_SCAN_RESILVER, + POOL_SCAN_FUNCS +} pool_scan_func_t; /* * ZIO types. Needed to interpret vdev statistics below. @@ -507,6 +610,36 @@ typedef enum zio_type { } zio_type_t; /* + * Pool statistics. Note: all fields should be 64-bit because this + * is passed between kernel and userland as an nvlist uint64 array. + */ +typedef struct pool_scan_stat { + /* values stored on disk */ + uint64_t pss_func; /* pool_scan_func_t */ + uint64_t pss_state; /* dsl_scan_state_t */ + uint64_t pss_start_time; /* scan start time */ + uint64_t pss_end_time; /* scan end time */ + uint64_t pss_to_examine; /* total bytes to scan */ + uint64_t pss_examined; /* total examined bytes */ + uint64_t pss_to_process; /* total bytes to process */ + uint64_t pss_processed; /* total processed bytes */ + uint64_t pss_errors; /* scan errors */ + + /* values not stored on disk */ + uint64_t pss_pass_exam; /* examined bytes per scan pass */ + uint64_t pss_pass_start; /* start time of a scan pass */ +} pool_scan_stat_t; + +typedef enum dsl_scan_state { + DSS_NONE, + DSS_SCANNING, + DSS_FINISHED, + DSS_CANCELED, + DSS_NUM_STATES +} dsl_scan_state_t; + + +/* * Vdev statistics. Note: all fields should be 64-bit because this * is passed between kernel and userland as an nvlist uint64 array. */ @@ -524,34 +657,49 @@ typedef struct vdev_stat { uint64_t vs_write_errors; /* write errors */ uint64_t vs_checksum_errors; /* checksum errors */ uint64_t vs_self_healed; /* self-healed bytes */ - uint64_t vs_scrub_type; /* pool_scrub_type_t */ - uint64_t vs_scrub_complete; /* completed? */ - uint64_t vs_scrub_examined; /* bytes examined; top */ - uint64_t vs_scrub_repaired; /* bytes repaired; leaf */ - uint64_t vs_scrub_errors; /* errors during scrub */ - uint64_t vs_scrub_start; /* UTC scrub start time */ - uint64_t vs_scrub_end; /* UTC scrub end time */ + uint64_t vs_scan_removing; /* removing? */ + uint64_t vs_scan_processed; /* scan processed bytes */ } vdev_stat_t; +/* + * DDT statistics. Note: all fields should be 64-bit because this + * is passed between kernel and userland as an nvlist uint64 array. + */ +typedef struct ddt_object { + uint64_t ddo_count; /* number of elments in ddt */ + uint64_t ddo_dspace; /* size of ddt on disk */ + uint64_t ddo_mspace; /* size of ddt in-core */ +} ddt_object_t; + +typedef struct ddt_stat { + uint64_t dds_blocks; /* blocks */ + uint64_t dds_lsize; /* logical size */ + uint64_t dds_psize; /* physical size */ + uint64_t dds_dsize; /* deflated allocated size */ + uint64_t dds_ref_blocks; /* referenced blocks */ + uint64_t dds_ref_lsize; /* referenced lsize * refcnt */ + uint64_t dds_ref_psize; /* referenced psize * refcnt */ + uint64_t dds_ref_dsize; /* referenced dsize * refcnt */ +} ddt_stat_t; + +typedef struct ddt_histogram { + ddt_stat_t ddh_stat[64]; /* power-of-two histogram buckets */ +} ddt_histogram_t; + #define ZVOL_DRIVER "zvol" #define ZFS_DRIVER "zfs" #define ZFS_DEV "/dev/zfs" -/* - * zvol paths. Irritatingly, the devfsadm interfaces want all these - * paths without the /dev prefix, but for some things, we want the - * /dev prefix. Below are the names without /dev. - */ -#define ZVOL_DEV_DIR "zvol/dsk" -#define ZVOL_RDEV_DIR "zvol/rdsk" - -/* - * And here are the things we need with /dev, etc. in front of them. - */ +/* general zvol path */ +#define ZVOL_DIR "/dev/zvol" +/* expansion */ #define ZVOL_PSEUDO_DEV "/devices/pseudo/zfs@0:" -#define ZVOL_FULL_DEV_DIR "/dev/" ZVOL_DEV_DIR "/" +/* for dump and swap */ +#define ZVOL_FULL_DEV_DIR ZVOL_DIR "/dsk/" +#define ZVOL_FULL_RDEV_DIR ZVOL_DIR "/rdsk/" #define ZVOL_PROP_NAME "name" +#define ZVOL_DEFAULT_BLOCKSIZE 8192 /* * /dev/zfs ioctl numbers. @@ -566,7 +714,7 @@ typedef enum zfs_ioc { ZFS_IOC_POOL_CONFIGS, ZFS_IOC_POOL_STATS, ZFS_IOC_POOL_TRYIMPORT, - ZFS_IOC_POOL_SCRUB, + ZFS_IOC_POOL_SCAN, ZFS_IOC_POOL_FREEZE, ZFS_IOC_POOL_UPGRADE, ZFS_IOC_POOL_GET_HISTORY, @@ -582,8 +730,6 @@ typedef enum zfs_ioc { ZFS_IOC_DATASET_LIST_NEXT, ZFS_IOC_SNAPSHOT_LIST_NEXT, ZFS_IOC_SET_PROP, - ZFS_IOC_CREATE_MINOR, - ZFS_IOC_REMOVE_MINOR, ZFS_IOC_CREATE, ZFS_IOC_DESTROY, ZFS_IOC_ROLLBACK, @@ -604,7 +750,6 @@ typedef enum zfs_ioc { ZFS_IOC_POOL_GET_PROPS, ZFS_IOC_SET_FSACL, ZFS_IOC_GET_FSACL, - ZFS_IOC_ISCSI_PERM_CHECK, ZFS_IOC_SHARE, ZFS_IOC_INHERIT_PROP, ZFS_IOC_SMB_ACL, @@ -613,17 +758,21 @@ typedef enum zfs_ioc { ZFS_IOC_USERSPACE_UPGRADE, ZFS_IOC_HOLD, ZFS_IOC_RELEASE, - ZFS_IOC_GET_HOLDS + ZFS_IOC_GET_HOLDS, + ZFS_IOC_OBJSET_RECVD_PROPS, + ZFS_IOC_VDEV_SPLIT } zfs_ioc_t; /* * Internal SPA load state. Used by FMA diagnosis engine. */ typedef enum { - SPA_LOAD_NONE, /* no load in progress */ - SPA_LOAD_OPEN, /* normal open */ - SPA_LOAD_IMPORT, /* import in progress */ - SPA_LOAD_TRYIMPORT /* tryimport in progress */ + SPA_LOAD_NONE, /* no load in progress */ + SPA_LOAD_OPEN, /* normal open */ + SPA_LOAD_IMPORT, /* import in progress */ + SPA_LOAD_TRYIMPORT, /* tryimport in progress */ + SPA_LOAD_RECOVER, /* recovery requested */ + SPA_LOAD_ERROR /* load failed */ } spa_load_state_t; /* @@ -686,7 +835,7 @@ typedef enum { /* * Note: This is encoded on-disk, so new events must be added to the * end, and unused events can not be removed. Be sure to edit - * zpool_main.c: hist_event_table[]. + * libzfs_pool.c: hist_event_table[]. */ typedef enum history_internal_events { LOG_NO_EVENT = 0, @@ -703,7 +852,7 @@ typedef enum history_internal_events { LOG_POOL_VDEV_OFFLINE, LOG_POOL_UPGRADE, LOG_POOL_CLEAR, - LOG_POOL_SCRUB, + LOG_POOL_SCAN, LOG_POOL_PROPSET, LOG_DS_CREATE, LOG_DS_CLONE, @@ -726,9 +875,10 @@ typedef enum history_internal_events { LOG_DS_UPGRADE, LOG_DS_REFQUOTA, LOG_DS_REFRESERV, - LOG_POOL_SCRUB_DONE, + LOG_POOL_SCAN_DONE, LOG_DS_USER_HOLD, LOG_DS_USER_RELEASE, + LOG_POOL_SPLIT, LOG_END } history_internal_events_t; diff --git a/module/zcommon/include/zfs_comutil.h b/module/zcommon/include/zfs_comutil.h index f517044a8..61327f9aa 100644 --- a/module/zcommon/include/zfs_comutil.h +++ b/module/zcommon/include/zfs_comutil.h @@ -19,15 +19,12 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _ZFS_COMUTIL_H #define _ZFS_COMUTIL_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/fs/zfs.h> #include <sys/types.h> @@ -35,7 +32,12 @@ extern "C" { #endif -extern boolean_t zfs_allocatable_devs(nvlist_t *nv); +extern boolean_t zfs_allocatable_devs(nvlist_t *); +extern void zpool_get_rewind_policy(nvlist_t *, zpool_rewind_policy_t *); + +extern int zfs_zpl_version_map(int spa_version); +extern int zfs_spa_version_map(int zpl_version); +extern const char *zfs_history_event_names[LOG_END]; #ifdef __cplusplus } diff --git a/module/zcommon/include/zfs_fletcher.h b/module/zcommon/include/zfs_fletcher.h new file mode 100644 index 000000000..b49df0cf4 --- /dev/null +++ b/module/zcommon/include/zfs_fletcher.h @@ -0,0 +1,53 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _ZFS_FLETCHER_H +#define _ZFS_FLETCHER_H + +#include <sys/types.h> +#include <sys/spa.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * fletcher checksum functions + */ + +void fletcher_2_native(const void *, uint64_t, zio_cksum_t *); +void fletcher_2_byteswap(const void *, uint64_t, zio_cksum_t *); +void fletcher_4_native(const void *, uint64_t, zio_cksum_t *); +void fletcher_4_byteswap(const void *, uint64_t, zio_cksum_t *); +void fletcher_4_incremental_native(const void *, uint64_t, + zio_cksum_t *); +void fletcher_4_incremental_byteswap(const void *, uint64_t, + zio_cksum_t *); + +#ifdef __cplusplus +} +#endif + +#endif /* _ZFS_FLETCHER_H */ diff --git a/module/zcommon/include/zfs_prop.h b/module/zcommon/include/zfs_prop.h index da5ae4309..a63262311 100644 --- a/module/zcommon/include/zfs_prop.h +++ b/module/zcommon/include/zfs_prop.h @@ -19,15 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _ZFS_PROP_H #define _ZFS_PROP_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/fs/zfs.h> #include <sys/types.h> @@ -79,6 +77,7 @@ typedef struct { /* "zfs get" help message */ const zprop_index_t *pd_table; /* for index properties, a table */ /* defining the possible values */ + size_t pd_table_size; /* number of entries in pd_table[] */ } zprop_desc_t; /* @@ -99,16 +98,16 @@ zprop_desc_t *zpool_prop_get_table(void); /* * Common routines to initialize property tables */ -void register_impl(int, const char *, zprop_type_t, uint64_t, +void zprop_register_impl(int, const char *, zprop_type_t, uint64_t, const char *, zprop_attr_t, int, const char *, const char *, boolean_t, boolean_t, const zprop_index_t *); -void register_string(int, const char *, const char *, zprop_attr_t attr, - int, const char *, const char *); -void register_number(int, const char *, uint64_t, zprop_attr_t, int, +void zprop_register_string(int, const char *, const char *, + zprop_attr_t attr, int, const char *, const char *); +void zprop_register_number(int, const char *, uint64_t, zprop_attr_t, int, const char *, const char *); -void register_index(int, const char *, uint64_t, zprop_attr_t, int, +void zprop_register_index(int, const char *, uint64_t, zprop_attr_t, int, const char *, const char *, const zprop_index_t *); -void register_hidden(int, const char *, zprop_type_t, zprop_attr_t, +void zprop_register_hidden(int, const char *, zprop_type_t, zprop_attr_t, int, const char *); /* @@ -118,6 +117,7 @@ int zprop_iter_common(zprop_func, void *, boolean_t, boolean_t, zfs_type_t); int zprop_name_to_prop(const char *, zfs_type_t); int zprop_string_to_index(int, const char *, uint64_t *, zfs_type_t); int zprop_index_to_string(int, uint64_t, const char **, zfs_type_t); +uint64_t zprop_random_value(int, uint64_t, zfs_type_t); const char *zprop_values(int, zfs_type_t); size_t zprop_width(int, boolean_t *, zfs_type_t); boolean_t zprop_valid_for_type(int, zfs_type_t); diff --git a/module/zcommon/zfs_comutil.c b/module/zcommon/zfs_comutil.c index 74517a3f6..ed9b67ea3 100644 --- a/module/zcommon/zfs_comutil.c +++ b/module/zcommon/zfs_comutil.c @@ -19,12 +19,9 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. */ -#pragma ident "%Z%%M% %I% %E% SMI" - /* * This file is intended for functions that ought to be common between user * land (libzfs) and the kernel. When many common routines need to be shared @@ -33,11 +30,15 @@ #if defined(_KERNEL) #include <sys/systm.h> +#else +#include <string.h> #endif #include <sys/types.h> #include <sys/fs/zfs.h> +#include <sys/int_limits.h> #include <sys/nvpair.h> +#include "zfs_comutil.h" /* * Are there allocatable vdevs? @@ -63,3 +64,139 @@ zfs_allocatable_devs(nvlist_t *nv) } return (B_FALSE); } + +void +zpool_get_rewind_policy(nvlist_t *nvl, zpool_rewind_policy_t *zrpp) +{ + nvlist_t *policy; + nvpair_t *elem; + char *nm; + + /* Defaults */ + zrpp->zrp_request = ZPOOL_NO_REWIND; + zrpp->zrp_maxmeta = 0; + zrpp->zrp_maxdata = UINT64_MAX; + zrpp->zrp_txg = UINT64_MAX; + + if (nvl == NULL) + return; + + elem = NULL; + while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { + nm = nvpair_name(elem); + if (strcmp(nm, ZPOOL_REWIND_POLICY) == 0) { + if (nvpair_value_nvlist(elem, &policy) == 0) + zpool_get_rewind_policy(policy, zrpp); + return; + } else if (strcmp(nm, ZPOOL_REWIND_REQUEST) == 0) { + if (nvpair_value_uint32(elem, &zrpp->zrp_request) == 0) + if (zrpp->zrp_request & ~ZPOOL_REWIND_POLICIES) + zrpp->zrp_request = ZPOOL_NO_REWIND; + } else if (strcmp(nm, ZPOOL_REWIND_REQUEST_TXG) == 0) { + (void) nvpair_value_uint64(elem, &zrpp->zrp_txg); + } else if (strcmp(nm, ZPOOL_REWIND_META_THRESH) == 0) { + (void) nvpair_value_uint64(elem, &zrpp->zrp_maxmeta); + } else if (strcmp(nm, ZPOOL_REWIND_DATA_THRESH) == 0) { + (void) nvpair_value_uint64(elem, &zrpp->zrp_maxdata); + } + } + if (zrpp->zrp_request == 0) + zrpp->zrp_request = ZPOOL_NO_REWIND; +} + +typedef struct zfs_version_spa_map { + int version_zpl; + int version_spa; +} zfs_version_spa_map_t; + +/* + * Keep this table in monotonically increasing version number order. + */ +static zfs_version_spa_map_t zfs_version_table[] = { + {ZPL_VERSION_INITIAL, SPA_VERSION_INITIAL}, + {ZPL_VERSION_DIRENT_TYPE, SPA_VERSION_INITIAL}, + {ZPL_VERSION_FUID, SPA_VERSION_FUID}, + {ZPL_VERSION_USERSPACE, SPA_VERSION_USERSPACE}, + {ZPL_VERSION_SA, SPA_VERSION_SA}, + {0, 0} +}; + +/* + * Return the max zpl version for a corresponding spa version + * -1 is returned if no mapping exists. + */ +int +zfs_zpl_version_map(int spa_version) +{ + int i; + int version = -1; + + for (i = 0; zfs_version_table[i].version_spa; i++) { + if (spa_version >= zfs_version_table[i].version_spa) + version = zfs_version_table[i].version_zpl; + } + + return (version); +} + +/* + * Return the min spa version for a corresponding spa version + * -1 is returned if no mapping exists. + */ +int +zfs_spa_version_map(int zpl_version) +{ + int i; + int version = -1; + + for (i = 0; zfs_version_table[i].version_zpl; i++) { + if (zfs_version_table[i].version_zpl >= zpl_version) + return (zfs_version_table[i].version_spa); + } + + return (version); +} + +const char *zfs_history_event_names[LOG_END] = { + "invalid event", + "pool create", + "vdev add", + "pool remove", + "pool destroy", + "pool export", + "pool import", + "vdev attach", + "vdev replace", + "vdev detach", + "vdev online", + "vdev offline", + "vdev upgrade", + "pool clear", + "pool scrub", + "pool property set", + "create", + "clone", + "destroy", + "destroy_begin_sync", + "inherit", + "property set", + "quota set", + "permission update", + "permission remove", + "permission who remove", + "promote", + "receive", + "rename", + "reservation set", + "replay_inc_sync", + "replay_full_sync", + "rollback", + "snapshot", + "filesystem version upgrade", + "refquota set", + "refreservation set", + "pool scrub done", + "user hold", + "user release", + "pool split", +}; diff --git a/module/zfs/fletcher.c b/module/zcommon/zfs_fletcher.c index 54247d724..fa43ce6bd 100644 --- a/module/zfs/fletcher.c +++ b/module/zcommon/zfs_fletcher.c @@ -128,6 +128,7 @@ #include <sys/types.h> #include <sys/sysmacros.h> #include <sys/byteorder.h> +#include <sys/zio.h> #include <sys/spa.h> void diff --git a/module/zcommon/zfs_prop.c b/module/zcommon/zfs_prop.c index 6a3284609..f29bcf627 100644 --- a/module/zcommon/zfs_prop.c +++ b/module/zcommon/zfs_prop.c @@ -19,10 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #include <sys/zio.h> #include <sys/spa.h> #include <sys/u8_textprep.h> @@ -69,6 +70,16 @@ zfs_prop_init(void) { NULL } }; + static zprop_index_t dedup_table[] = { + { "on", ZIO_CHECKSUM_ON }, + { "off", ZIO_CHECKSUM_OFF }, + { "verify", ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY }, + { "sha256", ZIO_CHECKSUM_SHA256 }, + { "sha256,verify", + ZIO_CHECKSUM_SHA256 | ZIO_CHECKSUM_VERIFY }, + { NULL } + }; + static zprop_index_t compress_table[] = { { "on", ZIO_COMPRESS_ON }, { "off", ZIO_COMPRESS_OFF }, @@ -83,6 +94,7 @@ zfs_prop_init(void) { "gzip-7", ZIO_COMPRESS_GZIP_7 }, { "gzip-8", ZIO_COMPRESS_GZIP_8 }, { "gzip-9", ZIO_COMPRESS_GZIP_9 }, + { "zle", ZIO_COMPRESS_ZLE }, { NULL } }; @@ -92,13 +104,6 @@ zfs_prop_init(void) { NULL } }; - static zprop_index_t acl_mode_table[] = { - { "discard", ZFS_ACL_DISCARD }, - { "groupmask", ZFS_ACL_GROUPMASK }, - { "passthrough", ZFS_ACL_PASSTHROUGH }, - { NULL } - }; - static zprop_index_t acl_inherit_table[] = { { "discard", ZFS_ACL_DISCARD }, { "noallow", ZFS_ACL_NOALLOW }, @@ -142,6 +147,7 @@ zfs_prop_init(void) { "2", 2 }, { "3", 3 }, { "4", 4 }, + { "5", 5 }, { "current", ZPL_VERSION }, { NULL } }; @@ -152,6 +158,12 @@ zfs_prop_init(void) { NULL } }; + static zprop_index_t logbias_table[] = { + { "latency", ZFS_LOGBIAS_LATENCY }, + { "throughput", ZFS_LOGBIAS_THROUGHPUT }, + { NULL } + }; + static zprop_index_t canmount_table[] = { { "off", ZFS_CANMOUNT_OFF }, { "on", ZFS_CANMOUNT_ON }, @@ -166,170 +178,208 @@ zfs_prop_init(void) { NULL } }; + static zprop_index_t sync_table[] = { + { "standard", ZFS_SYNC_STANDARD }, + { "always", ZFS_SYNC_ALWAYS }, + { "disabled", ZFS_SYNC_DISABLED }, + { NULL } + }; + /* inherit index properties */ - register_index(ZFS_PROP_CHECKSUM, "checksum", ZIO_CHECKSUM_DEFAULT, + zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, + "standard | always | disabled", "SYNC", + sync_table); + zprop_register_index(ZFS_PROP_CHECKSUM, "checksum", + ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | + ZFS_TYPE_VOLUME, "on | off | fletcher2 | fletcher4 | sha256", "CHECKSUM", checksum_table); - register_index(ZFS_PROP_COMPRESSION, "compression", + zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF, + PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, + "on | off | verify | sha256[,verify]", "DEDUP", + dedup_table); + zprop_register_index(ZFS_PROP_COMPRESSION, "compression", ZIO_COMPRESS_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, - "on | off | lzjb | gzip | gzip-[1-9]", "COMPRESS", compress_table); - register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, + "on | off | lzjb | gzip | gzip-[1-9] | zle", "COMPRESS", + compress_table); + zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "hidden | visible", "SNAPDIR", snapdir_table); - register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_GROUPMASK, - PROP_INHERIT, ZFS_TYPE_FILESYSTEM, - "discard | groupmask | passthrough", "ACLMODE", acl_mode_table); - register_index(ZFS_PROP_ACLINHERIT, "aclinherit", ZFS_ACL_RESTRICTED, - PROP_INHERIT, ZFS_TYPE_FILESYSTEM, + zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit", + ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "discard | noallow | restricted | passthrough | passthrough-x", "ACLINHERIT", acl_inherit_table); - register_index(ZFS_PROP_COPIES, "copies", 1, - PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, + zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT, + ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "1 | 2 | 3", "COPIES", copies_table); - register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", + zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", ZFS_CACHE_ALL, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, "all | none | metadata", "PRIMARYCACHE", cache_table); - register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", + zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", ZFS_CACHE_ALL, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, "all | none | metadata", "SECONDARYCACHE", cache_table); + zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY, + PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, + "latency | throughput", "LOGBIAS", logbias_table); /* inherit index (boolean) properties */ - register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, + zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table); - register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, + zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES", boolean_table); - register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, + zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC", boolean_table); - register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, + zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID", boolean_table); - register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, + zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY", boolean_table); - register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT, + zprop_register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table); - register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, + zprop_register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR", boolean_table); - register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, + zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", boolean_table); - register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, + zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND", boolean_table); /* default index properties */ - register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, + zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "1 | 2 | 3 | 4 | current", "VERSION", version_table); - register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, + zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto", "CANMOUNT", canmount_table); /* readonly index (boolean) properties */ - register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, + zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table); - register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, + zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY", boolean_table); /* set once index properties */ - register_index(ZFS_PROP_NORMALIZE, "normalization", 0, + zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0, PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "none | formC | formD | formKC | formKD", "NORMALIZATION", normalize_table); - register_index(ZFS_PROP_CASE, "casesensitivity", ZFS_CASE_SENSITIVE, - PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, + zprop_register_index(ZFS_PROP_CASE, "casesensitivity", + ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM | + ZFS_TYPE_SNAPSHOT, "sensitive | insensitive | mixed", "CASE", case_table); /* set once index (boolean) properties */ - register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, + zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "UTF8ONLY", boolean_table); /* string properties */ - register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, + zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN"); - register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", PROP_INHERIT, - ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", "MOUNTPOINT"); - register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", PROP_INHERIT, - ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", "SHARENFS"); - register_string(ZFS_PROP_SHAREISCSI, "shareiscsi", "off", PROP_INHERIT, - ZFS_TYPE_DATASET, "on | off | type=<type>", "SHAREISCSI"); - register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, + zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", + PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", + "MOUNTPOINT"); + zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", + PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", + "SHARENFS"); + zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, ZFS_TYPE_DATASET, "filesystem | volume | snapshot", "TYPE"); - register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", PROP_INHERIT, - ZFS_TYPE_FILESYSTEM, "on | off | sharemgr(1M) options", "SHARESMB"); + zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", + PROP_INHERIT, ZFS_TYPE_FILESYSTEM, + "on | off | sharemgr(1M) options", "SHARESMB"); + zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel", + ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET, + "<sensitivity label>", "MLSLABEL"); /* readonly number properties */ - register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, + zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "USED"); - register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, + zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL"); - register_number(ZFS_PROP_REFERENCED, "referenced", 0, PROP_READONLY, - ZFS_TYPE_DATASET, "<size>", "REFER"); - register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, + zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0, + PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "REFER"); + zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, PROP_READONLY, ZFS_TYPE_DATASET, "<1.00x or higher if compressed>", "RATIO"); - register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 8192, - PROP_ONETIME, + zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", + ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME, ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK"); - register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, PROP_READONLY, - ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDSNAP"); - register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, PROP_READONLY, - ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDDS"); - register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, PROP_READONLY, - ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDCHILD"); - register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, + zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, + PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", + "USEDSNAP"); + zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, + PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", + "USEDDS"); + zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, + PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", + "USEDCHILD"); + zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV"); - register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, + zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS"); /* default number properties */ - register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, + zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA"); - register_number(ZFS_PROP_RESERVATION, "reservation", 0, PROP_DEFAULT, - ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size> | none", "RESERV"); - register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, + zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0, + PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, + "<size> | none", "RESERV"); + zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, ZFS_TYPE_VOLUME, "<size>", "VOLSIZE"); - register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, + zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA"); - register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, + zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size> | none", "REFRESERV"); /* inherit number properties */ - register_number(ZFS_PROP_RECORDSIZE, "recordsize", SPA_MAXBLOCKSIZE, - PROP_INHERIT, + zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize", + SPA_MAXBLOCKSIZE, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "512 to 128k, power of 2", "RECSIZE"); /* hidden properties */ - register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER, - PROP_READONLY, ZFS_TYPE_DATASET, NULL); - register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, - PROP_READONLY, ZFS_TYPE_SNAPSHOT, NULL); - register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, + zprop_register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER, + PROP_READONLY, ZFS_TYPE_DATASET, "CREATETXG"); + zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, + PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES"); + zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, PROP_READONLY, ZFS_TYPE_DATASET, "NAME"); - register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", PROP_TYPE_STRING, - PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); - register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", + zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", + PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); + zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "STMF_SBD_LU"); - register_hidden(ZFS_PROP_GUID, "guid", PROP_TYPE_NUMBER, PROP_READONLY, - ZFS_TYPE_DATASET, "GUID"); - register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", - PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, NULL); + zprop_register_hidden(ZFS_PROP_GUID, "guid", PROP_TYPE_NUMBER, + PROP_READONLY, ZFS_TYPE_DATASET, "GUID"); + zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", + PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, + "USERACCOUNTING"); + zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER, + PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE"); + zprop_register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER, + PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID"); + + /* + * Property to be removed once libbe is integrated + */ + zprop_register_hidden(ZFS_PROP_PRIVATE, "priv_prop", + PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_FILESYSTEM, + "PRIV_PROP"); /* oddball properties */ - register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, NULL, - PROP_READONLY, ZFS_TYPE_DATASET, + zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, + NULL, PROP_READONLY, ZFS_TYPE_DATASET, "<date>", "CREATION", B_FALSE, B_TRUE, NULL); } @@ -337,6 +387,11 @@ boolean_t zfs_prop_delegatable(zfs_prop_t prop) { zprop_desc_t *pd = &zfs_prop_table[prop]; + + /* The mlslabel property is never delegatable. */ + if (prop == ZFS_PROP_MLSLABEL) + return (B_FALSE); + return (pd->pd_attr != PROP_READONLY); } @@ -421,6 +476,12 @@ zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string) return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET)); } +uint64_t +zfs_prop_random_value(zfs_prop_t prop, uint64_t seed) +{ + return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET)); +} + /* * Returns TRUE if the property applies to any of the given dataset types. */ diff --git a/module/zcommon/zpool_prop.c b/module/zcommon/zpool_prop.c index d57dcfb63..0b8a9529a 100644 --- a/module/zcommon/zpool_prop.c +++ b/module/zcommon/zpool_prop.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -64,48 +64,55 @@ zpool_prop_init(void) }; /* string properties */ - register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT, + zprop_register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT, ZFS_TYPE_POOL, "<path>", "ALTROOT"); - register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT, + zprop_register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT, ZFS_TYPE_POOL, "<filesystem>", "BOOTFS"); - register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL, PROP_DEFAULT, - ZFS_TYPE_POOL, "<file> | none", "CACHEFILE"); + zprop_register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL, + PROP_DEFAULT, ZFS_TYPE_POOL, "<file> | none", "CACHEFILE"); /* readonly number properties */ - register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY, + zprop_register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY, ZFS_TYPE_POOL, "<size>", "SIZE"); - register_number(ZPOOL_PROP_USED, "used", 0, PROP_READONLY, - ZFS_TYPE_POOL, "<size>", "USED"); - register_number(ZPOOL_PROP_AVAILABLE, "available", 0, PROP_READONLY, - ZFS_TYPE_POOL, "<size>", "AVAIL"); - register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY, + zprop_register_number(ZPOOL_PROP_FREE, "free", 0, PROP_READONLY, + ZFS_TYPE_POOL, "<size>", "FREE"); + zprop_register_number(ZPOOL_PROP_ALLOCATED, "allocated", 0, + PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC"); + zprop_register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY, ZFS_TYPE_POOL, "<size>", "CAP"); - register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY, + zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY, ZFS_TYPE_POOL, "<guid>", "GUID"); - register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY, + zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY, ZFS_TYPE_POOL, "<state>", "HEALTH"); + zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0, + PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>", + "DEDUP"); /* default number properties */ - register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION, + zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION, PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION"); + zprop_register_number(ZPOOL_PROP_DEDUPDITTO, "dedupditto", 0, + PROP_DEFAULT, ZFS_TYPE_POOL, "<threshold (min 100)>", "DEDUPDITTO"); /* default index (boolean) properties */ - register_index(ZPOOL_PROP_DELEGATION, "delegation", 1, PROP_DEFAULT, - ZFS_TYPE_POOL, "on | off", "DELEGATION", boolean_table); - register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0, PROP_DEFAULT, - ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table); - register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0, PROP_DEFAULT, - ZFS_TYPE_POOL, "on | off", "LISTSNAPS", boolean_table); - register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0, PROP_DEFAULT, - ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table); + zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1, + PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION", + boolean_table); + zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0, + PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table); + zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0, + PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS", + boolean_table); + zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0, + PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table); /* default index properties */ - register_index(ZPOOL_PROP_FAILUREMODE, "failmode", + zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode", ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL, "wait | continue | panic", "FAILMODE", failuremode_table); /* hidden properties */ - register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING, + zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING, PROP_READONLY, ZFS_TYPE_POOL, "NAME"); } @@ -166,6 +173,12 @@ zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index, return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL)); } +uint64_t +zpool_prop_random_value(zpool_prop_t prop, uint64_t seed) +{ + return (zprop_random_value(prop, seed, ZFS_TYPE_POOL)); +} + #ifndef _KERNEL const char * diff --git a/module/zcommon/zprop_common.c b/module/zcommon/zprop_common.c index 85f55c276..0bbf20d4f 100644 --- a/module/zcommon/zprop_common.c +++ b/module/zcommon/zprop_common.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -65,7 +65,7 @@ zprop_get_numprops(zfs_type_t type) } void -register_impl(int prop, const char *name, zprop_type_t type, +zprop_register_impl(int prop, const char *name, zprop_type_t type, uint64_t numdefault, const char *strdefault, zprop_attr_t attr, int objset_types, const char *values, const char *colname, boolean_t rightalign, boolean_t visible, const zprop_index_t *idx_tbl) @@ -76,6 +76,8 @@ register_impl(int prop, const char *name, zprop_type_t type, pd = &prop_tbl[prop]; ASSERT(pd->pd_name == NULL || pd->pd_name == name); + ASSERT(name != NULL); + ASSERT(colname != NULL); pd->pd_name = name; pd->pd_propnum = prop; @@ -89,40 +91,44 @@ register_impl(int prop, const char *name, zprop_type_t type, pd->pd_rightalign = rightalign; pd->pd_visible = visible; pd->pd_table = idx_tbl; + pd->pd_table_size = 0; + while (idx_tbl && (idx_tbl++)->pi_name != NULL) + pd->pd_table_size++; } void -register_string(int prop, const char *name, const char *def, +zprop_register_string(int prop, const char *name, const char *def, zprop_attr_t attr, int objset_types, const char *values, const char *colname) { - register_impl(prop, name, PROP_TYPE_STRING, 0, def, attr, + zprop_register_impl(prop, name, PROP_TYPE_STRING, 0, def, attr, objset_types, values, colname, B_FALSE, B_TRUE, NULL); } void -register_number(int prop, const char *name, uint64_t def, zprop_attr_t attr, - int objset_types, const char *values, const char *colname) +zprop_register_number(int prop, const char *name, uint64_t def, + zprop_attr_t attr, int objset_types, const char *values, + const char *colname) { - register_impl(prop, name, PROP_TYPE_NUMBER, def, NULL, attr, + zprop_register_impl(prop, name, PROP_TYPE_NUMBER, def, NULL, attr, objset_types, values, colname, B_TRUE, B_TRUE, NULL); } void -register_index(int prop, const char *name, uint64_t def, zprop_attr_t attr, - int objset_types, const char *values, const char *colname, - const zprop_index_t *idx_tbl) +zprop_register_index(int prop, const char *name, uint64_t def, + zprop_attr_t attr, int objset_types, const char *values, + const char *colname, const zprop_index_t *idx_tbl) { - register_impl(prop, name, PROP_TYPE_INDEX, def, NULL, attr, + zprop_register_impl(prop, name, PROP_TYPE_INDEX, def, NULL, attr, objset_types, values, colname, B_TRUE, B_TRUE, idx_tbl); } void -register_hidden(int prop, const char *name, zprop_type_t type, +zprop_register_hidden(int prop, const char *name, zprop_type_t type, zprop_attr_t attr, int objset_types, const char *colname) { - register_impl(prop, name, type, 0, NULL, attr, + zprop_register_impl(prop, name, type, 0, NULL, attr, objset_types, NULL, colname, B_FALSE, B_FALSE, NULL); } @@ -307,6 +313,25 @@ zprop_index_to_string(int prop, uint64_t index, const char **string, return (-1); } +/* + * Return a random valid property value. Used by ztest. + */ +uint64_t +zprop_random_value(int prop, uint64_t seed, zfs_type_t type) +{ + zprop_desc_t *prop_tbl; + const zprop_index_t *idx_tbl; + + ASSERT((uint_t)prop < zprop_get_numprops(type)); + prop_tbl = zprop_get_proptable(type); + idx_tbl = prop_tbl[prop].pd_table; + + if (idx_tbl == NULL) + return (seed); + + return (idx_tbl[seed % prop_tbl[prop].pd_table_size].pi_value); +} + const char * zprop_values(int prop, zfs_type_t type) { diff --git a/module/zfs/arc.c b/module/zfs/arc.c index d5e5aa544..8adb54dc6 100644 --- a/module/zfs/arc.c +++ b/module/zfs/arc.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -119,7 +118,6 @@ #include <sys/spa.h> #include <sys/zio.h> -#include <sys/zio_checksum.h> #include <sys/zfs_context.h> #include <sys/arc.h> #include <sys/refcount.h> @@ -133,6 +131,7 @@ #endif #include <sys/callb.h> #include <sys/kstat.h> +#include <zfs_fletcher.h> static kmutex_t arc_reclaim_thr_lock; static kcondvar_t arc_reclaim_thr_cv; /* used to signal reclaim thr */ @@ -178,7 +177,6 @@ static boolean_t arc_warm; uint64_t zfs_arc_max; uint64_t zfs_arc_min; uint64_t zfs_arc_meta_limit = 0; -int zfs_mdcomp_disable = 0; int zfs_arc_grow_retry = 0; int zfs_arc_shrink_shift = 0; int zfs_arc_p_min_shift = 0; @@ -249,6 +247,9 @@ typedef struct arc_stats { kstat_named_t arcstat_recycle_miss; kstat_named_t arcstat_mutex_miss; kstat_named_t arcstat_evict_skip; + kstat_named_t arcstat_evict_l2_cached; + kstat_named_t arcstat_evict_l2_eligible; + kstat_named_t arcstat_evict_l2_ineligible; kstat_named_t arcstat_hash_elements; kstat_named_t arcstat_hash_elements_max; kstat_named_t arcstat_hash_collisions; @@ -302,6 +303,9 @@ static arc_stats_t arc_stats = { { "recycle_miss", KSTAT_DATA_UINT64 }, { "mutex_miss", KSTAT_DATA_UINT64 }, { "evict_skip", KSTAT_DATA_UINT64 }, + { "evict_l2_cached", KSTAT_DATA_UINT64 }, + { "evict_l2_eligible", KSTAT_DATA_UINT64 }, + { "evict_l2_ineligible", KSTAT_DATA_UINT64 }, { "hash_elements", KSTAT_DATA_UINT64 }, { "hash_elements_max", KSTAT_DATA_UINT64 }, { "hash_collisions", KSTAT_DATA_UINT64 }, @@ -341,7 +345,7 @@ static arc_stats_t arc_stats = { #define ARCSTAT_INCR(stat, val) \ atomic_add_64(&arc_stats.stat.value.ui64, (val)); -#define ARCSTAT_BUMP(stat) ARCSTAT_INCR(stat, 1) +#define ARCSTAT_BUMP(stat) ARCSTAT_INCR(stat, 1) #define ARCSTAT_BUMPDOWN(stat) ARCSTAT_INCR(stat, -1) #define ARCSTAT_MAX(stat, val) { \ @@ -375,7 +379,7 @@ static arc_stats_t arc_stats = { } kstat_t *arc_ksp; -static arc_state_t *arc_anon; +static arc_state_t *arc_anon; static arc_state_t *arc_mru; static arc_state_t *arc_mru_ghost; static arc_state_t *arc_mfu; @@ -432,6 +436,7 @@ struct arc_buf_hdr { kmutex_t b_freeze_lock; zio_cksum_t *b_freeze_cksum; + void *b_thawed; arc_buf_hdr_t *b_hash_next; arc_buf_t *b_buf; @@ -468,6 +473,8 @@ static void arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock); static int arc_evict_needed(arc_buf_contents_t type); static void arc_evict_ghost(arc_state_t *state, uint64_t spa, int64_t bytes); +static boolean_t l2arc_write_eligible(uint64_t spa_guid, arc_buf_hdr_t *ab); + #define GHOST_STATE(state) \ ((state) == arc_mru_ghost || (state) == arc_mfu_ghost || \ (state) == arc_l2c_only) @@ -490,7 +497,6 @@ static void arc_evict_ghost(arc_state_t *state, uint64_t spa, int64_t bytes); #define ARC_L2_WRITING (1 << 16) /* L2ARC write in progress */ #define ARC_L2_EVICTED (1 << 17) /* evicted during I/O */ #define ARC_L2_WRITE_HEAD (1 << 18) /* head of write list */ -#define ARC_STORED (1 << 19) /* has been store()d to */ #define HDR_IN_HASH_TABLE(hdr) ((hdr)->b_flags & ARC_IN_HASH_TABLE) #define HDR_IO_IN_PROGRESS(hdr) ((hdr)->b_flags & ARC_IO_IN_PROGRESS) @@ -539,8 +545,8 @@ static buf_hash_table_t buf_hash_table; (buf_hash(spa, dva, birth) & buf_hash_table.ht_mask) #define BUF_HASH_LOCK_NTRY(idx) (buf_hash_table.ht_locks[idx & (BUF_LOCKS-1)]) #define BUF_HASH_LOCK(idx) (&(BUF_HASH_LOCK_NTRY(idx).ht_lock)) -#define HDR_LOCK(buf) \ - (BUF_HASH_LOCK(BUF_HASH_INDEX(buf->b_spa, &buf->b_dva, buf->b_birth))) +#define HDR_LOCK(hdr) \ + (BUF_HASH_LOCK(BUF_HASH_INDEX(hdr->b_spa, &hdr->b_dva, hdr->b_birth))) uint64_t zfs_crc64_table[256]; @@ -658,6 +664,15 @@ buf_hash(uint64_t spa, const dva_t *dva, uint64_t birth) ((buf)->b_dva.dva_word[1] == (dva)->dva_word[1]) && \ ((buf)->b_birth == birth) && ((buf)->b_spa == spa) +static void +buf_discard_identity(arc_buf_hdr_t *hdr) +{ + hdr->b_dva.dva_word[0] = 0; + hdr->b_dva.dva_word[1] = 0; + hdr->b_birth = 0; + hdr->b_cksum0 = 0; +} + static arc_buf_hdr_t * buf_hash_find(uint64_t spa, const dva_t *dva, uint64_t birth, kmutex_t **lockp) { @@ -791,7 +806,8 @@ buf_cons(void *vbuf, void *unused, int kmflag) arc_buf_t *buf = vbuf; bzero(buf, sizeof (arc_buf_t)); - rw_init(&buf->b_lock, NULL, RW_DEFAULT, NULL); + mutex_init(&buf->b_evict_lock, NULL, MUTEX_DEFAULT, NULL); + rw_init(&buf->b_data_lock, NULL, RW_DEFAULT, NULL); arc_space_consume(sizeof (arc_buf_t), ARC_SPACE_HDRS); return (0); @@ -807,6 +823,7 @@ hdr_dest(void *vbuf, void *unused) { arc_buf_hdr_t *buf = vbuf; + ASSERT(BUF_EMPTY(buf)); refcount_destroy(&buf->b_refcnt); cv_destroy(&buf->b_cv); mutex_destroy(&buf->b_freeze_lock); @@ -819,7 +836,8 @@ buf_dest(void *vbuf, void *unused) { arc_buf_t *buf = vbuf; - rw_destroy(&buf->b_lock); + mutex_destroy(&buf->b_evict_lock); + rw_destroy(&buf->b_data_lock); arc_space_return(sizeof (arc_buf_t), ARC_SPACE_HDRS); } @@ -934,6 +952,11 @@ arc_cksum_compute(arc_buf_t *buf, boolean_t force) void arc_buf_thaw(arc_buf_t *buf) { + kmutex_t *hash_lock; + + hash_lock = HDR_LOCK(buf->b_hdr); + mutex_enter(hash_lock); + if (zfs_flags & ZFS_DEBUG_MODIFY) { if (buf->b_hdr->b_state != arc_anon) panic("modifying non-anon buffer!"); @@ -947,18 +970,32 @@ arc_buf_thaw(arc_buf_t *buf) kmem_free(buf->b_hdr->b_freeze_cksum, sizeof (zio_cksum_t)); buf->b_hdr->b_freeze_cksum = NULL; } + + if (zfs_flags & ZFS_DEBUG_MODIFY) { + if (buf->b_hdr->b_thawed) + kmem_free(buf->b_hdr->b_thawed, 1); + buf->b_hdr->b_thawed = kmem_alloc(1, KM_SLEEP); + } + mutex_exit(&buf->b_hdr->b_freeze_lock); + mutex_exit(hash_lock); } void arc_buf_freeze(arc_buf_t *buf) { + kmutex_t *hash_lock; + if (!(zfs_flags & ZFS_DEBUG_MODIFY)) return; + hash_lock = HDR_LOCK(buf->b_hdr); + mutex_enter(hash_lock); + ASSERT(buf->b_hdr->b_freeze_cksum != NULL || buf->b_hdr->b_state == arc_anon); arc_cksum_compute(buf, B_FALSE); + mutex_exit(hash_lock); } static void @@ -1030,6 +1067,7 @@ arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) ASSERT(new_state != old_state); ASSERT(refcnt == 0 || ab->b_datacnt > 0); ASSERT(ab->b_datacnt == 0 || !GHOST_STATE(new_state)); + ASSERT(ab->b_datacnt <= 1 || old_state != arc_anon); from_delta = to_delta = ab->b_datacnt * ab->b_size; @@ -1050,7 +1088,7 @@ arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) /* * If prefetching out of the ghost cache, - * we will have a non-null datacnt. + * we will have a non-zero datacnt. */ if (GHOST_STATE(old_state) && ab->b_datacnt == 0) { /* ghost elements have a ghost size */ @@ -1086,9 +1124,8 @@ arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) } ASSERT(!BUF_EMPTY(ab)); - if (new_state == arc_anon) { + if (new_state == arc_anon && HDR_IN_HASH_TABLE(ab)) buf_hash_remove(ab); - } /* adjust state sizes */ if (to_delta) @@ -1232,14 +1269,29 @@ arc_return_buf(arc_buf_t *buf, void *tag) { arc_buf_hdr_t *hdr = buf->b_hdr; - ASSERT(hdr->b_state == arc_anon); ASSERT(buf->b_data != NULL); - VERIFY(refcount_remove(&hdr->b_refcnt, arc_onloan_tag) == 0); - VERIFY(refcount_add(&hdr->b_refcnt, tag) == 1); + (void) refcount_add(&hdr->b_refcnt, tag); + (void) refcount_remove(&hdr->b_refcnt, arc_onloan_tag); atomic_add_64(&arc_loaned_bytes, -hdr->b_size); } +/* Detach an arc_buf from a dbuf (tag) */ +void +arc_loan_inuse_buf(arc_buf_t *buf, void *tag) +{ + arc_buf_hdr_t *hdr; + + ASSERT(buf->b_data != NULL); + hdr = buf->b_hdr; + (void) refcount_add(&hdr->b_refcnt, arc_onloan_tag); + (void) refcount_remove(&hdr->b_refcnt, tag); + buf->b_efunc = NULL; + buf->b_private = NULL; + + atomic_add_64(&arc_loaned_bytes, hdr->b_size); +} + static arc_buf_t * arc_buf_clone(arc_buf_t *from) { @@ -1247,6 +1299,8 @@ arc_buf_clone(arc_buf_t *from) arc_buf_hdr_t *hdr = from->b_hdr; uint64_t size = hdr->b_size; + ASSERT(hdr->b_state != arc_anon); + buf = kmem_cache_alloc(buf_cache, KM_PUSHPAGE); buf->b_hdr = hdr; buf->b_data = NULL; @@ -1271,16 +1325,16 @@ arc_buf_add_ref(arc_buf_t *buf, void* tag) * must verify b_data != NULL to know if the add_ref * was successful. */ - rw_enter(&buf->b_lock, RW_READER); + mutex_enter(&buf->b_evict_lock); if (buf->b_data == NULL) { - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); return; } - hdr = buf->b_hdr; - ASSERT(hdr != NULL); - hash_lock = HDR_LOCK(hdr); + hash_lock = HDR_LOCK(buf->b_hdr); mutex_enter(hash_lock); - rw_exit(&buf->b_lock); + hdr = buf->b_hdr; + ASSERT3P(hash_lock, ==, HDR_LOCK(hdr)); + mutex_exit(&buf->b_evict_lock); ASSERT(hdr->b_state == arc_mru || hdr->b_state == arc_mfu); add_reference(hdr, hash_lock, tag); @@ -1328,6 +1382,7 @@ arc_buf_destroy(arc_buf_t *buf, boolean_t recycle, boolean_t all) arc_buf_contents_t type = buf->b_hdr->b_type; arc_cksum_verify(buf); + if (!recycle) { if (type == ARC_BUFC_METADATA) { arc_buf_data_free(buf->b_hdr, zio_buf_free, @@ -1365,6 +1420,7 @@ arc_buf_destroy(arc_buf_t *buf, boolean_t recycle, boolean_t all) for (bufp = &buf->b_hdr->b_buf; *bufp != buf; bufp = &(*bufp)->b_next) continue; *bufp = buf->b_next; + buf->b_next = NULL; ASSERT(buf->b_efunc == NULL); @@ -1379,55 +1435,55 @@ arc_hdr_destroy(arc_buf_hdr_t *hdr) ASSERT(refcount_is_zero(&hdr->b_refcnt)); ASSERT3P(hdr->b_state, ==, arc_anon); ASSERT(!HDR_IO_IN_PROGRESS(hdr)); - ASSERT(!(hdr->b_flags & ARC_STORED)); + l2arc_buf_hdr_t *l2hdr = hdr->b_l2hdr; - if (hdr->b_l2hdr != NULL) { - if (!MUTEX_HELD(&l2arc_buflist_mtx)) { - /* - * To prevent arc_free() and l2arc_evict() from - * attempting to free the same buffer at the same time, - * a FREE_IN_PROGRESS flag is given to arc_free() to - * give it priority. l2arc_evict() can't destroy this - * header while we are waiting on l2arc_buflist_mtx. - * - * The hdr may be removed from l2ad_buflist before we - * grab l2arc_buflist_mtx, so b_l2hdr is rechecked. - */ + if (l2hdr != NULL) { + boolean_t buflist_held = MUTEX_HELD(&l2arc_buflist_mtx); + /* + * To prevent arc_free() and l2arc_evict() from + * attempting to free the same buffer at the same time, + * a FREE_IN_PROGRESS flag is given to arc_free() to + * give it priority. l2arc_evict() can't destroy this + * header while we are waiting on l2arc_buflist_mtx. + * + * The hdr may be removed from l2ad_buflist before we + * grab l2arc_buflist_mtx, so b_l2hdr is rechecked. + */ + if (!buflist_held) { mutex_enter(&l2arc_buflist_mtx); - if (hdr->b_l2hdr != NULL) { - list_remove(hdr->b_l2hdr->b_dev->l2ad_buflist, - hdr); - } - mutex_exit(&l2arc_buflist_mtx); - } else { - list_remove(hdr->b_l2hdr->b_dev->l2ad_buflist, hdr); + l2hdr = hdr->b_l2hdr; } - ARCSTAT_INCR(arcstat_l2_size, -hdr->b_size); - kmem_free(hdr->b_l2hdr, sizeof (l2arc_buf_hdr_t)); - if (hdr->b_state == arc_l2c_only) - l2arc_hdr_stat_remove(); - hdr->b_l2hdr = NULL; + + if (l2hdr != NULL) { + list_remove(l2hdr->b_dev->l2ad_buflist, hdr); + ARCSTAT_INCR(arcstat_l2_size, -hdr->b_size); + kmem_free(l2hdr, sizeof (l2arc_buf_hdr_t)); + if (hdr->b_state == arc_l2c_only) + l2arc_hdr_stat_remove(); + hdr->b_l2hdr = NULL; + } + + if (!buflist_held) + mutex_exit(&l2arc_buflist_mtx); } if (!BUF_EMPTY(hdr)) { ASSERT(!HDR_IN_HASH_TABLE(hdr)); - bzero(&hdr->b_dva, sizeof (dva_t)); - hdr->b_birth = 0; - hdr->b_cksum0 = 0; + buf_discard_identity(hdr); } while (hdr->b_buf) { arc_buf_t *buf = hdr->b_buf; if (buf->b_efunc) { mutex_enter(&arc_eviction_mtx); - rw_enter(&buf->b_lock, RW_WRITER); + mutex_enter(&buf->b_evict_lock); ASSERT(buf->b_hdr != NULL); arc_buf_destroy(hdr->b_buf, FALSE, FALSE); hdr->b_buf = buf->b_next; buf->b_hdr = &arc_eviction_hdr; buf->b_next = arc_eviction_list; arc_eviction_list = buf; - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); mutex_exit(&arc_eviction_mtx); } else { arc_buf_destroy(hdr->b_buf, FALSE, TRUE); @@ -1437,6 +1493,10 @@ arc_hdr_destroy(arc_buf_hdr_t *hdr) kmem_free(hdr->b_freeze_cksum, sizeof (zio_cksum_t)); hdr->b_freeze_cksum = NULL; } + if (hdr->b_thawed) { + kmem_free(hdr->b_thawed, 1); + hdr->b_thawed = NULL; + } ASSERT(!list_link_active(&hdr->b_arc_node)); ASSERT3P(hdr->b_hash_next, ==, NULL); @@ -1457,11 +1517,17 @@ arc_buf_free(arc_buf_t *buf, void *tag) kmutex_t *hash_lock = HDR_LOCK(hdr); mutex_enter(hash_lock); + hdr = buf->b_hdr; + ASSERT3P(hash_lock, ==, HDR_LOCK(hdr)); + (void) remove_reference(hdr, hash_lock, tag); - if (hdr->b_datacnt > 1) + if (hdr->b_datacnt > 1) { arc_buf_destroy(buf, FALSE, TRUE); - else + } else { + ASSERT(buf == hdr->b_buf); + ASSERT(buf->b_efunc == NULL); hdr->b_flags |= ARC_BUF_AVAILABLE; + } mutex_exit(hash_lock); } else if (HDR_IO_IN_PROGRESS(hdr)) { int destroy_hdr; @@ -1478,12 +1544,10 @@ arc_buf_free(arc_buf_t *buf, void *tag) if (destroy_hdr) arc_hdr_destroy(hdr); } else { - if (remove_reference(hdr, NULL, tag) > 0) { - ASSERT(HDR_IO_ERROR(hdr)); + if (remove_reference(hdr, NULL, tag) > 0) arc_buf_destroy(buf, FALSE, TRUE); - } else { + else arc_hdr_destroy(hdr); - } } } @@ -1495,11 +1559,14 @@ arc_buf_remove_ref(arc_buf_t *buf, void* tag) int no_callback = (buf->b_efunc == NULL); if (hdr->b_state == arc_anon) { + ASSERT(hdr->b_datacnt == 1); arc_buf_free(buf, tag); return (no_callback); } mutex_enter(hash_lock); + hdr = buf->b_hdr; + ASSERT3P(hash_lock, ==, HDR_LOCK(hdr)); ASSERT(hdr->b_state != arc_anon); ASSERT(buf->b_data != NULL); @@ -1509,6 +1576,7 @@ arc_buf_remove_ref(arc_buf_t *buf, void* tag) arc_buf_destroy(buf, FALSE, TRUE); } else if (no_callback) { ASSERT(hdr->b_buf == buf && buf->b_next == NULL); + ASSERT(buf->b_efunc == NULL); hdr->b_flags |= ARC_BUF_AVAILABLE; } ASSERT(no_callback || hdr->b_datacnt > 1 || @@ -1561,7 +1629,8 @@ arc_evict(arc_state_t *state, uint64_t spa, int64_t bytes, boolean_t recycle, if (HDR_IO_IN_PROGRESS(ab) || (spa && ab->b_spa != spa) || (ab->b_flags & (ARC_PREFETCH|ARC_INDIRECT) && - lbolt - ab->b_arc_access < arc_min_prefetch_lifespan)) { + ddi_get_lbolt() - ab->b_arc_access < + arc_min_prefetch_lifespan)) { skipped++; continue; } @@ -1576,7 +1645,7 @@ arc_evict(arc_state_t *state, uint64_t spa, int64_t bytes, boolean_t recycle, ASSERT(ab->b_datacnt > 0); while (ab->b_buf) { arc_buf_t *buf = ab->b_buf; - if (!rw_tryenter(&buf->b_lock, RW_WRITER)) { + if (!mutex_tryenter(&buf->b_evict_lock)) { missed += 1; break; } @@ -1598,13 +1667,28 @@ arc_evict(arc_state_t *state, uint64_t spa, int64_t bytes, boolean_t recycle, buf->b_next = arc_eviction_list; arc_eviction_list = buf; mutex_exit(&arc_eviction_mtx); - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); } else { - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); arc_buf_destroy(buf, buf->b_data == stolen, TRUE); } } + + if (ab->b_l2hdr) { + ARCSTAT_INCR(arcstat_evict_l2_cached, + ab->b_size); + } else { + if (l2arc_write_eligible(ab->b_spa, ab)) { + ARCSTAT_INCR(arcstat_evict_l2_eligible, + ab->b_size); + } else { + ARCSTAT_INCR( + arcstat_evict_l2_ineligible, + ab->b_size); + } + } + if (ab->b_datacnt == 0) { arc_change_state(evicted_state, ab, hash_lock); ASSERT(HDR_IN_HASH_TABLE(ab)); @@ -1679,6 +1763,9 @@ top: if (spa && ab->b_spa != spa) continue; hash_lock = HDR_LOCK(ab); + /* caller may be trying to modify this buffer, skip it */ + if (MUTEX_HELD(hash_lock)) + continue; if (mutex_tryenter(hash_lock)) { ASSERT(!HDR_IO_IN_PROGRESS(ab)); ASSERT(ab->b_buf == NULL); @@ -1799,9 +1886,9 @@ arc_do_user_evicts(void) while (arc_eviction_list != NULL) { arc_buf_t *buf = arc_eviction_list; arc_eviction_list = buf->b_next; - rw_enter(&buf->b_lock, RW_WRITER); + mutex_enter(&buf->b_evict_lock); buf->b_hdr = NULL; - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); mutex_exit(&arc_eviction_mtx); if (buf->b_efunc != NULL) @@ -2017,12 +2104,12 @@ arc_reclaim_thread(void) } /* reset the growth delay for every reclaim */ - growtime = lbolt + (arc_grow_retry * hz); + growtime = ddi_get_lbolt() + (arc_grow_retry * hz); arc_kmem_reap_now(last_reclaim); arc_warm = B_TRUE; - } else if (arc_no_grow && lbolt >= growtime) { + } else if (arc_no_grow && ddi_get_lbolt() >= growtime) { arc_no_grow = FALSE; } @@ -2036,7 +2123,7 @@ arc_reclaim_thread(void) /* block until needed, or one second, whichever is shorter */ CALLB_CPR_SAFE_BEGIN(&cpr); (void) cv_timedwait(&arc_reclaim_thr_cv, - &arc_reclaim_thr_lock, (lbolt + hz)); + &arc_reclaim_thr_lock, (ddi_get_lbolt() + hz)); CALLB_CPR_SAFE_END(&cpr, &arc_reclaim_thr_lock); } @@ -2251,6 +2338,8 @@ out: static void arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) { + clock_t now; + ASSERT(MUTEX_HELD(hash_lock)); if (buf->b_state == arc_anon) { @@ -2261,11 +2350,13 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) */ ASSERT(buf->b_arc_access == 0); - buf->b_arc_access = lbolt; + buf->b_arc_access = ddi_get_lbolt(); DTRACE_PROBE1(new_state__mru, arc_buf_hdr_t *, buf); arc_change_state(arc_mru, buf, hash_lock); } else if (buf->b_state == arc_mru) { + now = ddi_get_lbolt(); + /* * If this buffer is here because of a prefetch, then either: * - clear the flag if this is a "referencing" read @@ -2281,7 +2372,7 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) buf->b_flags &= ~ARC_PREFETCH; ARCSTAT_BUMP(arcstat_mru_hits); } - buf->b_arc_access = lbolt; + buf->b_arc_access = now; return; } @@ -2290,13 +2381,13 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) * but it is still in the cache. Move it to the MFU * state. */ - if (lbolt > buf->b_arc_access + ARC_MINTIME) { + if (now > buf->b_arc_access + ARC_MINTIME) { /* * More than 125ms have passed since we * instantiated this buffer. Move it to the * most frequently used state. */ - buf->b_arc_access = lbolt; + buf->b_arc_access = now; DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); arc_change_state(arc_mfu, buf, hash_lock); } @@ -2319,7 +2410,7 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); } - buf->b_arc_access = lbolt; + buf->b_arc_access = ddi_get_lbolt(); arc_change_state(new_state, buf, hash_lock); ARCSTAT_BUMP(arcstat_mru_ghost_hits); @@ -2338,7 +2429,7 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) ASSERT(list_link_active(&buf->b_arc_node)); } ARCSTAT_BUMP(arcstat_mfu_hits); - buf->b_arc_access = lbolt; + buf->b_arc_access = ddi_get_lbolt(); } else if (buf->b_state == arc_mfu_ghost) { arc_state_t *new_state = arc_mfu; /* @@ -2356,7 +2447,7 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) new_state = arc_mru; } - buf->b_arc_access = lbolt; + buf->b_arc_access = ddi_get_lbolt(); DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); arc_change_state(new_state, buf, hash_lock); @@ -2366,7 +2457,7 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) * This buffer is on the 2nd Level ARC. */ - buf->b_arc_access = lbolt; + buf->b_arc_access = ddi_get_lbolt(); DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); arc_change_state(arc_mfu, buf, hash_lock); } else { @@ -2379,7 +2470,8 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) void arc_bcopy_func(zio_t *zio, arc_buf_t *buf, void *arg) { - bcopy(buf->b_data, arg, buf->b_hdr->b_size); + if (zio == NULL || zio->io_error == 0) + bcopy(buf->b_data, arg, buf->b_hdr->b_size); VERIFY(arc_buf_remove_ref(buf, arg) == 1); } @@ -2393,6 +2485,7 @@ arc_getbuf_func(zio_t *zio, arc_buf_t *buf, void *arg) *bufp = NULL; } else { *bufp = buf; + ASSERT(buf->b_data); } } @@ -2431,7 +2524,7 @@ arc_read_done(zio_t *zio) /* byteswap if necessary */ callback_list = hdr->b_acb; ASSERT(callback_list != NULL); - if (BP_SHOULD_BYTESWAP(zio->io_bp)) { + if (BP_SHOULD_BYTESWAP(zio->io_bp) && zio->io_error == 0) { arc_byteswap_func_t *func = BP_GET_LEVEL(zio->io_bp) > 0 ? byteswap_uint64_array : dmu_ot[BP_GET_TYPE(zio->io_bp)].ot_byteswap; @@ -2440,6 +2533,16 @@ arc_read_done(zio_t *zio) arc_cksum_compute(buf, B_FALSE); + if (hash_lock && zio->io_error == 0 && hdr->b_state == arc_anon) { + /* + * Only call arc_access on anonymous buffers. This is because + * if we've issued an I/O for an evicted buffer, we've already + * called arc_access (to prevent any simultaneous readers from + * getting confused). + */ + arc_access(hdr, hash_lock); + } + /* create copies of the data buffer for the callers */ abuf = buf; for (acb = callback_list; acb; acb = acb->acb_next) { @@ -2453,8 +2556,11 @@ arc_read_done(zio_t *zio) hdr->b_acb = NULL; hdr->b_flags &= ~ARC_IO_IN_PROGRESS; ASSERT(!HDR_BUF_AVAILABLE(hdr)); - if (abuf == buf) + if (abuf == buf) { + ASSERT(buf->b_efunc == NULL); + ASSERT(hdr->b_datacnt == 1); hdr->b_flags |= ARC_BUF_AVAILABLE; + } ASSERT(refcount_is_zero(&hdr->b_refcnt) || callback_list != NULL); @@ -2475,14 +2581,6 @@ arc_read_done(zio_t *zio) cv_broadcast(&hdr->b_cv); if (hash_lock) { - /* - * Only call arc_access on anonymous buffers. This is because - * if we've issued an I/O for an evicted buffer, we've already - * called arc_access (to prevent any simultaneous readers from - * getting confused). - */ - if (zio->io_error == 0 && hdr->b_state == arc_anon) - arc_access(hdr, hash_lock); mutex_exit(hash_lock); } else { /* @@ -2536,25 +2634,34 @@ arc_read_done(zio_t *zio) * arc_read_bp. */ int -arc_read(zio_t *pio, spa_t *spa, blkptr_t *bp, arc_buf_t *pbuf, +arc_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, arc_buf_t *pbuf, arc_done_func_t *done, void *private, int priority, int zio_flags, uint32_t *arc_flags, const zbookmark_t *zb) { int err; + if (pbuf == NULL) { + /* + * XXX This happens from traverse callback funcs, for + * the objset_phys_t block. + */ + return (arc_read_nolock(pio, spa, bp, done, private, priority, + zio_flags, arc_flags, zb)); + } + ASSERT(!refcount_is_zero(&pbuf->b_hdr->b_refcnt)); ASSERT3U((char *)bp - (char *)pbuf->b_data, <, pbuf->b_hdr->b_size); - rw_enter(&pbuf->b_lock, RW_READER); + rw_enter(&pbuf->b_data_lock, RW_READER); err = arc_read_nolock(pio, spa, bp, done, private, priority, zio_flags, arc_flags, zb); - rw_exit(&pbuf->b_lock); + rw_exit(&pbuf->b_data_lock); return (err); } int -arc_read_nolock(zio_t *pio, spa_t *spa, blkptr_t *bp, +arc_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bp, arc_done_func_t *done, void *private, int priority, int zio_flags, uint32_t *arc_flags, const zbookmark_t *zb) { @@ -2565,7 +2672,8 @@ arc_read_nolock(zio_t *pio, spa_t *spa, blkptr_t *bp, uint64_t guid = spa_guid(spa); top: - hdr = buf_hash_find(guid, BP_IDENTITY(bp), bp->blk_birth, &hash_lock); + hdr = buf_hash_find(guid, BP_IDENTITY(bp), BP_PHYSICAL_BIRTH(bp), + &hash_lock); if (hdr && hdr->b_datacnt > 0) { *arc_flags |= ARC_CACHED; @@ -2619,6 +2727,7 @@ top: } else { buf = arc_buf_clone(buf); } + } else if (*arc_flags & ARC_PREFETCH && refcount_count(&hdr->b_refcnt) == 0) { hdr->b_flags |= ARC_PREFETCH; @@ -2649,15 +2758,13 @@ top: buf = arc_buf_alloc(spa, size, private, type); hdr = buf->b_hdr; hdr->b_dva = *BP_IDENTITY(bp); - hdr->b_birth = bp->blk_birth; + hdr->b_birth = BP_PHYSICAL_BIRTH(bp); hdr->b_cksum0 = bp->blk_cksum.zc_word[0]; exists = buf_hash_insert(hdr, &hash_lock); if (exists) { /* somebody beat us to the hash insert */ mutex_exit(hash_lock); - bzero(&hdr->b_dva, sizeof (dva_t)); - hdr->b_birth = 0; - hdr->b_cksum0 = 0; + buf_discard_identity(hdr); (void) arc_buf_remove_ref(buf, private); goto top; /* restart the IO request */ } @@ -2692,12 +2799,14 @@ top: buf->b_private = NULL; buf->b_next = NULL; hdr->b_buf = buf; - arc_get_data_buf(buf); ASSERT(hdr->b_datacnt == 0); hdr->b_datacnt = 1; - + arc_get_data_buf(buf); + arc_access(hdr, hash_lock); } + ASSERT(!GHOST_STATE(hdr->b_state)); + acb = kmem_zalloc(sizeof (arc_callback_t), KM_SLEEP); acb->acb_done = done; acb->acb_private = private; @@ -2706,17 +2815,6 @@ top: hdr->b_acb = acb; hdr->b_flags |= ARC_IO_IN_PROGRESS; - /* - * If the buffer has been evicted, migrate it to a present state - * before issuing the I/O. Once we drop the hash-table lock, - * the header will be marked as I/O in progress and have an - * attached buffer. At this point, anybody who finds this - * buffer ought to notice that it's legit but has a pending I/O. - */ - - if (GHOST_STATE(hdr->b_state)) - arc_access(hdr, hash_lock); - if (HDR_L2CACHE(hdr) && hdr->b_l2hdr != NULL && (vd = hdr->b_l2hdr->b_dev->l2ad_vdev) != NULL) { devw = hdr->b_l2hdr->b_dev->l2ad_writing; @@ -2732,8 +2830,8 @@ top: mutex_exit(hash_lock); ASSERT3U(hdr->b_size, ==, size); - DTRACE_PROBE3(arc__miss, blkptr_t *, bp, uint64_t, size, - zbookmark_t *, zb); + DTRACE_PROBE4(arc__miss, arc_buf_hdr_t *, hdr, blkptr_t *, bp, + uint64_t, size, zbookmark_t *, zb); ARCSTAT_BUMP(arcstat_misses); ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_PREFETCH), demand, prefetch, hdr->b_type != ARC_BUFC_METADATA, @@ -2819,47 +2917,15 @@ top: return (0); } -/* - * arc_read() variant to support pool traversal. If the block is already - * in the ARC, make a copy of it; otherwise, the caller will do the I/O. - * The idea is that we don't want pool traversal filling up memory, but - * if the ARC already has the data anyway, we shouldn't pay for the I/O. - */ -int -arc_tryread(spa_t *spa, blkptr_t *bp, void *data) -{ - arc_buf_hdr_t *hdr; - kmutex_t *hash_mtx; - uint64_t guid = spa_guid(spa); - int rc = 0; - - hdr = buf_hash_find(guid, BP_IDENTITY(bp), bp->blk_birth, &hash_mtx); - - if (hdr && hdr->b_datacnt > 0 && !HDR_IO_IN_PROGRESS(hdr)) { - arc_buf_t *buf = hdr->b_buf; - - ASSERT(buf); - while (buf->b_data == NULL) { - buf = buf->b_next; - ASSERT(buf); - } - bcopy(buf->b_data, data, hdr->b_size); - } else { - rc = ENOENT; - } - - if (hash_mtx) - mutex_exit(hash_mtx); - - return (rc); -} - void arc_set_callback(arc_buf_t *buf, arc_evict_func_t *func, void *private) { ASSERT(buf->b_hdr != NULL); ASSERT(buf->b_hdr->b_state != arc_anon); ASSERT(!refcount_is_zero(&buf->b_hdr->b_refcnt) || func == NULL); + ASSERT(buf->b_efunc == NULL); + ASSERT(!HDR_BUF_AVAILABLE(buf->b_hdr)); + buf->b_efunc = func; buf->b_private = private; } @@ -2876,14 +2942,14 @@ arc_buf_evict(arc_buf_t *buf) kmutex_t *hash_lock; arc_buf_t **bufp; - rw_enter(&buf->b_lock, RW_WRITER); + mutex_enter(&buf->b_evict_lock); hdr = buf->b_hdr; if (hdr == NULL) { /* * We are in arc_do_user_evicts(). */ ASSERT(buf->b_data == NULL); - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); return (0); } else if (buf->b_data == NULL) { arc_buf_t copy = *buf; /* structure assignment */ @@ -2892,14 +2958,15 @@ arc_buf_evict(arc_buf_t *buf) * but let arc_do_user_evicts() do the reaping. */ buf->b_efunc = NULL; - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); VERIFY(copy.b_efunc(©) == 0); return (1); } hash_lock = HDR_LOCK(hdr); mutex_enter(hash_lock); + hdr = buf->b_hdr; + ASSERT3P(hash_lock, ==, HDR_LOCK(hdr)); - ASSERT(buf->b_hdr == hdr); ASSERT3U(refcount_count(&hdr->b_refcnt), <, hdr->b_datacnt); ASSERT(hdr->b_state == arc_mru || hdr->b_state == arc_mfu); @@ -2918,6 +2985,7 @@ arc_buf_evict(arc_buf_t *buf) arc_state_t *old_state = hdr->b_state; arc_state_t *evicted_state; + ASSERT(hdr->b_buf == NULL); ASSERT(refcount_is_zero(&hdr->b_refcnt)); evicted_state = @@ -2935,12 +3003,13 @@ arc_buf_evict(arc_buf_t *buf) mutex_exit(&old_state->arcs_mtx); } mutex_exit(hash_lock); - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); VERIFY(buf->b_efunc(buf) == 0); buf->b_efunc = NULL; buf->b_private = NULL; buf->b_hdr = NULL; + buf->b_next = NULL; kmem_cache_free(buf_cache, buf); return (1); } @@ -2955,29 +3024,30 @@ void arc_release(arc_buf_t *buf, void *tag) { arc_buf_hdr_t *hdr; - kmutex_t *hash_lock; + kmutex_t *hash_lock = NULL; l2arc_buf_hdr_t *l2hdr; uint64_t buf_size; - boolean_t released = B_FALSE; - rw_enter(&buf->b_lock, RW_WRITER); + /* + * It would be nice to assert that if it's DMU metadata (level > + * 0 || it's the dnode file), then it must be syncing context. + * But we don't know that information at this level. + */ + + mutex_enter(&buf->b_evict_lock); hdr = buf->b_hdr; /* this buffer is not on any list */ ASSERT(refcount_count(&hdr->b_refcnt) > 0); - ASSERT(!(hdr->b_flags & ARC_STORED)); if (hdr->b_state == arc_anon) { /* this buffer is already released */ - ASSERT3U(refcount_count(&hdr->b_refcnt), ==, 1); - ASSERT(BUF_EMPTY(hdr)); ASSERT(buf->b_efunc == NULL); - arc_buf_thaw(buf); - rw_exit(&buf->b_lock); - released = B_TRUE; } else { hash_lock = HDR_LOCK(hdr); mutex_enter(hash_lock); + hdr = buf->b_hdr; + ASSERT3P(hash_lock, ==, HDR_LOCK(hdr)); } l2hdr = hdr->b_l2hdr; @@ -2987,9 +3057,6 @@ arc_release(arc_buf_t *buf, void *tag) buf_size = hdr->b_size; } - if (released) - goto out; - /* * Do we have more than one buf? */ @@ -3003,14 +3070,14 @@ arc_release(arc_buf_t *buf, void *tag) ASSERT(hdr->b_buf != buf || buf->b_next != NULL); /* - * Pull the data off of this buf and attach it to - * a new anonymous buf. + * Pull the data off of this hdr and attach it to + * a new anonymous hdr. */ (void) remove_reference(hdr, hash_lock, tag); bufp = &hdr->b_buf; while (*bufp != buf) bufp = &(*bufp)->b_next; - *bufp = (*bufp)->b_next; + *bufp = buf->b_next; buf->b_next = NULL; ASSERT3U(hdr->b_state->arcs_size, >=, hdr->b_size); @@ -3038,26 +3105,25 @@ arc_release(arc_buf_t *buf, void *tag) nhdr->b_freeze_cksum = NULL; (void) refcount_add(&nhdr->b_refcnt, tag); buf->b_hdr = nhdr; - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); atomic_add_64(&arc_anon->arcs_size, blksz); } else { - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); ASSERT(refcount_count(&hdr->b_refcnt) == 1); ASSERT(!list_link_active(&hdr->b_arc_node)); ASSERT(!HDR_IO_IN_PROGRESS(hdr)); - arc_change_state(arc_anon, hdr, hash_lock); + if (hdr->b_state != arc_anon) + arc_change_state(arc_anon, hdr, hash_lock); hdr->b_arc_access = 0; - mutex_exit(hash_lock); + if (hash_lock) + mutex_exit(hash_lock); - bzero(&hdr->b_dva, sizeof (dva_t)); - hdr->b_birth = 0; - hdr->b_cksum0 = 0; + buf_discard_identity(hdr); arc_buf_thaw(buf); } buf->b_efunc = NULL; buf->b_private = NULL; -out: if (l2hdr) { list_remove(l2hdr->b_dev->l2ad_buflist, hdr); kmem_free(l2hdr, sizeof (l2arc_buf_hdr_t)); @@ -3066,14 +3132,27 @@ out: } } +/* + * Release this buffer. If it does not match the provided BP, fill it + * with that block's contents. + */ +/* ARGSUSED */ +int +arc_release_bp(arc_buf_t *buf, void *tag, blkptr_t *bp, spa_t *spa, + zbookmark_t *zb) +{ + arc_release(buf, tag); + return (0); +} + int arc_released(arc_buf_t *buf) { int released; - rw_enter(&buf->b_lock, RW_READER); + mutex_enter(&buf->b_evict_lock); released = (buf->b_data != NULL && buf->b_hdr->b_state == arc_anon); - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); return (released); } @@ -3082,9 +3161,9 @@ arc_has_callback(arc_buf_t *buf) { int callback; - rw_enter(&buf->b_lock, RW_READER); + mutex_enter(&buf->b_evict_lock); callback = (buf->b_efunc != NULL); - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); return (callback); } @@ -3094,9 +3173,9 @@ arc_referenced(arc_buf_t *buf) { int referenced; - rw_enter(&buf->b_lock, RW_READER); + mutex_enter(&buf->b_evict_lock); referenced = (refcount_count(&buf->b_hdr->b_refcnt)); - rw_exit(&buf->b_lock); + mutex_exit(&buf->b_evict_lock); return (referenced); } #endif @@ -3136,21 +3215,28 @@ arc_write_done(zio_t *zio) arc_buf_t *buf = callback->awcb_buf; arc_buf_hdr_t *hdr = buf->b_hdr; - hdr->b_acb = NULL; + ASSERT(hdr->b_acb == NULL); + + if (zio->io_error == 0) { + hdr->b_dva = *BP_IDENTITY(zio->io_bp); + hdr->b_birth = BP_PHYSICAL_BIRTH(zio->io_bp); + hdr->b_cksum0 = zio->io_bp->blk_cksum.zc_word[0]; + } else { + ASSERT(BUF_EMPTY(hdr)); + } - hdr->b_dva = *BP_IDENTITY(zio->io_bp); - hdr->b_birth = zio->io_bp->blk_birth; - hdr->b_cksum0 = zio->io_bp->blk_cksum.zc_word[0]; /* * If the block to be written was all-zero, we may have * compressed it away. In this case no write was performed - * so there will be no dva/birth-date/checksum. The buffer - * must therefor remain anonymous (and uncached). + * so there will be no dva/birth/checksum. The buffer must + * therefore remain anonymous (and uncached). */ if (!BUF_EMPTY(hdr)) { arc_buf_hdr_t *exists; kmutex_t *hash_lock; + ASSERT(zio->io_error == 0); + arc_cksum_verify(buf); exists = buf_hash_insert(hdr, &hash_lock); @@ -3160,106 +3246,54 @@ arc_write_done(zio_t *zio) * sync-to-convergence, because we remove * buffers from the hash table when we arc_free(). */ - ASSERT(zio->io_flags & ZIO_FLAG_IO_REWRITE); - ASSERT(DVA_EQUAL(BP_IDENTITY(&zio->io_bp_orig), - BP_IDENTITY(zio->io_bp))); - ASSERT3U(zio->io_bp_orig.blk_birth, ==, - zio->io_bp->blk_birth); - - ASSERT(refcount_is_zero(&exists->b_refcnt)); - arc_change_state(arc_anon, exists, hash_lock); - mutex_exit(hash_lock); - arc_hdr_destroy(exists); - exists = buf_hash_insert(hdr, &hash_lock); - ASSERT3P(exists, ==, NULL); + if (zio->io_flags & ZIO_FLAG_IO_REWRITE) { + if (!BP_EQUAL(&zio->io_bp_orig, zio->io_bp)) + panic("bad overwrite, hdr=%p exists=%p", + (void *)hdr, (void *)exists); + ASSERT(refcount_is_zero(&exists->b_refcnt)); + arc_change_state(arc_anon, exists, hash_lock); + mutex_exit(hash_lock); + arc_hdr_destroy(exists); + exists = buf_hash_insert(hdr, &hash_lock); + ASSERT3P(exists, ==, NULL); + } else { + /* Dedup */ + ASSERT(hdr->b_datacnt == 1); + ASSERT(hdr->b_state == arc_anon); + ASSERT(BP_GET_DEDUP(zio->io_bp)); + ASSERT(BP_GET_LEVEL(zio->io_bp) == 0); + } } hdr->b_flags &= ~ARC_IO_IN_PROGRESS; /* if it's not anon, we are doing a scrub */ - if (hdr->b_state == arc_anon) + if (!exists && hdr->b_state == arc_anon) arc_access(hdr, hash_lock); mutex_exit(hash_lock); - } else if (callback->awcb_done == NULL) { - int destroy_hdr; - /* - * This is an anonymous buffer with no user callback, - * destroy it if there are no active references. - */ - mutex_enter(&arc_eviction_mtx); - destroy_hdr = refcount_is_zero(&hdr->b_refcnt); - hdr->b_flags &= ~ARC_IO_IN_PROGRESS; - mutex_exit(&arc_eviction_mtx); - if (destroy_hdr) - arc_hdr_destroy(hdr); } else { hdr->b_flags &= ~ARC_IO_IN_PROGRESS; } - hdr->b_flags &= ~ARC_STORED; - if (callback->awcb_done) { - ASSERT(!refcount_is_zero(&hdr->b_refcnt)); - callback->awcb_done(zio, buf, callback->awcb_private); - } + ASSERT(!refcount_is_zero(&hdr->b_refcnt)); + callback->awcb_done(zio, buf, callback->awcb_private); kmem_free(callback, sizeof (arc_write_callback_t)); } -void -write_policy(spa_t *spa, const writeprops_t *wp, zio_prop_t *zp) -{ - boolean_t ismd = (wp->wp_level > 0 || dmu_ot[wp->wp_type].ot_metadata); - - /* Determine checksum setting */ - if (ismd) { - /* - * Metadata always gets checksummed. If the data - * checksum is multi-bit correctable, and it's not a - * ZBT-style checksum, then it's suitable for metadata - * as well. Otherwise, the metadata checksum defaults - * to fletcher4. - */ - if (zio_checksum_table[wp->wp_oschecksum].ci_correctable && - !zio_checksum_table[wp->wp_oschecksum].ci_zbt) - zp->zp_checksum = wp->wp_oschecksum; - else - zp->zp_checksum = ZIO_CHECKSUM_FLETCHER_4; - } else { - zp->zp_checksum = zio_checksum_select(wp->wp_dnchecksum, - wp->wp_oschecksum); - } - - /* Determine compression setting */ - if (ismd) { - /* - * XXX -- we should design a compression algorithm - * that specializes in arrays of bps. - */ - zp->zp_compress = zfs_mdcomp_disable ? ZIO_COMPRESS_EMPTY : - ZIO_COMPRESS_LZJB; - } else { - zp->zp_compress = zio_compress_select(wp->wp_dncompress, - wp->wp_oscompress); - } - - zp->zp_type = wp->wp_type; - zp->zp_level = wp->wp_level; - zp->zp_ndvas = MIN(wp->wp_copies + ismd, spa_max_replication(spa)); -} - zio_t * -arc_write(zio_t *pio, spa_t *spa, const writeprops_t *wp, - boolean_t l2arc, uint64_t txg, blkptr_t *bp, arc_buf_t *buf, - arc_done_func_t *ready, arc_done_func_t *done, void *private, int priority, - int zio_flags, const zbookmark_t *zb) +arc_write(zio_t *pio, spa_t *spa, uint64_t txg, + blkptr_t *bp, arc_buf_t *buf, boolean_t l2arc, const zio_prop_t *zp, + arc_done_func_t *ready, arc_done_func_t *done, void *private, + int priority, int zio_flags, const zbookmark_t *zb) { arc_buf_hdr_t *hdr = buf->b_hdr; arc_write_callback_t *callback; zio_t *zio; - zio_prop_t zp; ASSERT(ready != NULL); + ASSERT(done != NULL); ASSERT(!HDR_IO_ERROR(hdr)); ASSERT((hdr->b_flags & ARC_IO_IN_PROGRESS) == 0); - ASSERT(hdr->b_acb == 0); + ASSERT(hdr->b_acb == NULL); if (l2arc) hdr->b_flags |= ARC_L2CACHE; callback = kmem_zalloc(sizeof (arc_write_callback_t), KM_SLEEP); @@ -3268,88 +3302,12 @@ arc_write(zio_t *pio, spa_t *spa, const writeprops_t *wp, callback->awcb_private = private; callback->awcb_buf = buf; - write_policy(spa, wp, &zp); - zio = zio_write(pio, spa, txg, bp, buf->b_data, hdr->b_size, &zp, + zio = zio_write(pio, spa, txg, bp, buf->b_data, hdr->b_size, zp, arc_write_ready, arc_write_done, callback, priority, zio_flags, zb); return (zio); } -int -arc_free(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - zio_done_func_t *done, void *private, uint32_t arc_flags) -{ - arc_buf_hdr_t *ab; - kmutex_t *hash_lock; - zio_t *zio; - uint64_t guid = spa_guid(spa); - - /* - * If this buffer is in the cache, release it, so it - * can be re-used. - */ - ab = buf_hash_find(guid, BP_IDENTITY(bp), bp->blk_birth, &hash_lock); - if (ab != NULL) { - /* - * The checksum of blocks to free is not always - * preserved (eg. on the deadlist). However, if it is - * nonzero, it should match what we have in the cache. - */ - ASSERT(bp->blk_cksum.zc_word[0] == 0 || - bp->blk_cksum.zc_word[0] == ab->b_cksum0 || - bp->blk_fill == BLK_FILL_ALREADY_FREED); - - if (ab->b_state != arc_anon) - arc_change_state(arc_anon, ab, hash_lock); - if (HDR_IO_IN_PROGRESS(ab)) { - /* - * This should only happen when we prefetch. - */ - ASSERT(ab->b_flags & ARC_PREFETCH); - ASSERT3U(ab->b_datacnt, ==, 1); - ab->b_flags |= ARC_FREED_IN_READ; - if (HDR_IN_HASH_TABLE(ab)) - buf_hash_remove(ab); - ab->b_arc_access = 0; - bzero(&ab->b_dva, sizeof (dva_t)); - ab->b_birth = 0; - ab->b_cksum0 = 0; - ab->b_buf->b_efunc = NULL; - ab->b_buf->b_private = NULL; - mutex_exit(hash_lock); - } else if (refcount_is_zero(&ab->b_refcnt)) { - ab->b_flags |= ARC_FREE_IN_PROGRESS; - mutex_exit(hash_lock); - arc_hdr_destroy(ab); - ARCSTAT_BUMP(arcstat_deleted); - } else { - /* - * We still have an active reference on this - * buffer. This can happen, e.g., from - * dbuf_unoverride(). - */ - ASSERT(!HDR_IN_HASH_TABLE(ab)); - ab->b_arc_access = 0; - bzero(&ab->b_dva, sizeof (dva_t)); - ab->b_birth = 0; - ab->b_cksum0 = 0; - ab->b_buf->b_efunc = NULL; - ab->b_buf->b_private = NULL; - mutex_exit(hash_lock); - } - } - - zio = zio_free(pio, spa, txg, bp, done, private, ZIO_FLAG_MUSTSUCCEED); - - if (arc_flags & ARC_WAIT) - return (zio_wait(zio)); - - ASSERT(arc_flags & ARC_NOWAIT); - zio_nowait(zio); - - return (0); -} - static int arc_memory_throttle(uint64_t reserve, uint64_t inflight_data, uint64_t txg) { @@ -3786,12 +3744,11 @@ l2arc_write_eligible(uint64_t spa_guid, arc_buf_hdr_t *ab) /* * A buffer is *not* eligible for the L2ARC if it: * 1. belongs to a different spa. - * 2. has no attached buffer. - * 3. is already cached on the L2ARC. - * 4. has an I/O in progress (it may be an incomplete read). - * 5. is flagged not eligible (zfs property). + * 2. is already cached on the L2ARC. + * 3. has an I/O in progress (it may be an incomplete read). + * 4. is flagged not eligible (zfs property). */ - if (ab->b_spa != spa_guid || ab->b_buf == NULL || ab->b_l2hdr != NULL || + if (ab->b_spa != spa_guid || ab->b_l2hdr != NULL || HDR_IO_IN_PROGRESS(ab) || !HDR_L2CACHE(ab)) return (B_FALSE); @@ -3815,7 +3772,7 @@ l2arc_write_size(l2arc_dev_t *dev) static clock_t l2arc_write_interval(clock_t began, uint64_t wanted, uint64_t wrote) { - clock_t interval, next; + clock_t interval, next, now; /* * If the ARC lists are busy, increase our write rate; if the @@ -3828,7 +3785,8 @@ l2arc_write_interval(clock_t began, uint64_t wanted, uint64_t wrote) else interval = hz * l2arc_feed_secs; - next = MAX(lbolt, MIN(lbolt + interval, began + interval)); + now = ddi_get_lbolt(); + next = MAX(now, MIN(now + interval, began + interval)); return (next); } @@ -4030,11 +3988,11 @@ l2arc_read_done(zio_t *zio) ASSERT(cb != NULL); buf = cb->l2rcb_buf; ASSERT(buf != NULL); - hdr = buf->b_hdr; - ASSERT(hdr != NULL); - hash_lock = HDR_LOCK(hdr); + hash_lock = HDR_LOCK(buf->b_hdr); mutex_enter(hash_lock); + hdr = buf->b_hdr; + ASSERT3P(hash_lock, ==, HDR_LOCK(hdr)); /* * Check this survived the L2ARC journey. @@ -4247,7 +4205,7 @@ top: } mutex_exit(&l2arc_buflist_mtx); - spa_l2cache_space_update(dev->l2ad_vdev, 0, -(taddr - dev->l2ad_evict)); + vdev_space_update(dev->l2ad_vdev, -(taddr - dev->l2ad_evict), 0, 0); dev->l2ad_evict = taddr; } @@ -4407,15 +4365,15 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz) ARCSTAT_BUMP(arcstat_l2_writes_sent); ARCSTAT_INCR(arcstat_l2_write_bytes, write_sz); ARCSTAT_INCR(arcstat_l2_size, write_sz); - spa_l2cache_space_update(dev->l2ad_vdev, 0, write_sz); + vdev_space_update(dev->l2ad_vdev, write_sz, 0, 0); /* * Bump device hand to the device start if it is approaching the end. * l2arc_evict() will already have evicted ahead for this case. */ if (dev->l2ad_hand >= (dev->l2ad_end - target_sz)) { - spa_l2cache_space_update(dev->l2ad_vdev, 0, - dev->l2ad_end - dev->l2ad_hand); + vdev_space_update(dev->l2ad_vdev, + dev->l2ad_end - dev->l2ad_hand, 0, 0); dev->l2ad_hand = dev->l2ad_start; dev->l2ad_evict = dev->l2ad_start; dev->l2ad_first = B_FALSE; @@ -4439,7 +4397,7 @@ l2arc_feed_thread(void) l2arc_dev_t *dev; spa_t *spa; uint64_t size, wrote; - clock_t begin, next = lbolt; + clock_t begin, next = ddi_get_lbolt(); CALLB_CPR_INIT(&cpr, &l2arc_feed_thr_lock, callb_generic_cpr, FTAG); @@ -4450,7 +4408,7 @@ l2arc_feed_thread(void) (void) cv_timedwait(&l2arc_feed_thr_cv, &l2arc_feed_thr_lock, next); CALLB_CPR_SAFE_END(&cpr, &l2arc_feed_thr_lock); - next = lbolt + hz; + next = ddi_get_lbolt() + hz; /* * Quick check for L2ARC devices. @@ -4461,7 +4419,7 @@ l2arc_feed_thread(void) continue; } mutex_exit(&l2arc_dev_mtx); - begin = lbolt; + begin = ddi_get_lbolt(); /* * This selects the next l2arc device to write to, and in @@ -4566,7 +4524,7 @@ l2arc_add_vdev(spa_t *spa, vdev_t *vd) list_create(adddev->l2ad_buflist, sizeof (arc_buf_hdr_t), offsetof(arc_buf_hdr_t, b_l2node)); - spa_l2cache_space_update(vd, adddev->l2ad_end - adddev->l2ad_hand, 0); + vdev_space_update(vd, 0, 0, adddev->l2ad_end - adddev->l2ad_hand); /* * Add device to global list diff --git a/module/zfs/bplist.c b/module/zfs/bplist.c index 93b7741d7..066ccc6b1 100644 --- a/module/zfs/bplist.c +++ b/module/zfs/bplist.c @@ -19,331 +19,51 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/bplist.h> #include <sys/zfs_context.h> -static int -bplist_hold(bplist_t *bpl) -{ - ASSERT(MUTEX_HELD(&bpl->bpl_lock)); - if (bpl->bpl_dbuf == NULL) { - int err = dmu_bonus_hold(bpl->bpl_mos, - bpl->bpl_object, bpl, &bpl->bpl_dbuf); - if (err) - return (err); - bpl->bpl_phys = bpl->bpl_dbuf->db_data; - } - return (0); -} - -uint64_t -bplist_create(objset_t *mos, int blocksize, dmu_tx_t *tx) -{ - int size; - - size = spa_version(dmu_objset_spa(mos)) < SPA_VERSION_BPLIST_ACCOUNT ? - BPLIST_SIZE_V0 : sizeof (bplist_phys_t); - - return (dmu_object_alloc(mos, DMU_OT_BPLIST, blocksize, - DMU_OT_BPLIST_HDR, size, tx)); -} void -bplist_destroy(objset_t *mos, uint64_t object, dmu_tx_t *tx) +bplist_create(bplist_t *bpl) { - VERIFY(dmu_object_free(mos, object, tx) == 0); -} - -int -bplist_open(bplist_t *bpl, objset_t *mos, uint64_t object) -{ - dmu_object_info_t doi; - int err; - - err = dmu_object_info(mos, object, &doi); - if (err) - return (err); - - mutex_enter(&bpl->bpl_lock); - - ASSERT(bpl->bpl_dbuf == NULL); - ASSERT(bpl->bpl_phys == NULL); - ASSERT(bpl->bpl_cached_dbuf == NULL); - ASSERT(bpl->bpl_queue == NULL); - ASSERT(object != 0); - ASSERT3U(doi.doi_type, ==, DMU_OT_BPLIST); - ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_BPLIST_HDR); - - bpl->bpl_mos = mos; - bpl->bpl_object = object; - bpl->bpl_blockshift = highbit(doi.doi_data_block_size - 1); - bpl->bpl_bpshift = bpl->bpl_blockshift - SPA_BLKPTRSHIFT; - bpl->bpl_havecomp = (doi.doi_bonus_size == sizeof (bplist_phys_t)); - - mutex_exit(&bpl->bpl_lock); - return (0); + mutex_init(&bpl->bpl_lock, NULL, MUTEX_DEFAULT, NULL); + list_create(&bpl->bpl_list, sizeof (bplist_entry_t), + offsetof(bplist_entry_t, bpe_node)); } void -bplist_close(bplist_t *bpl) -{ - mutex_enter(&bpl->bpl_lock); - - ASSERT(bpl->bpl_queue == NULL); - - if (bpl->bpl_cached_dbuf) { - dmu_buf_rele(bpl->bpl_cached_dbuf, bpl); - bpl->bpl_cached_dbuf = NULL; - } - if (bpl->bpl_dbuf) { - dmu_buf_rele(bpl->bpl_dbuf, bpl); - bpl->bpl_dbuf = NULL; - bpl->bpl_phys = NULL; - } - - mutex_exit(&bpl->bpl_lock); -} - -boolean_t -bplist_empty(bplist_t *bpl) -{ - boolean_t rv; - - if (bpl->bpl_object == 0) - return (B_TRUE); - - mutex_enter(&bpl->bpl_lock); - VERIFY(0 == bplist_hold(bpl)); /* XXX */ - rv = (bpl->bpl_phys->bpl_entries == 0); - mutex_exit(&bpl->bpl_lock); - - return (rv); -} - -static int -bplist_cache(bplist_t *bpl, uint64_t blkid) -{ - int err = 0; - - if (bpl->bpl_cached_dbuf == NULL || - bpl->bpl_cached_dbuf->db_offset != (blkid << bpl->bpl_blockshift)) { - if (bpl->bpl_cached_dbuf != NULL) - dmu_buf_rele(bpl->bpl_cached_dbuf, bpl); - err = dmu_buf_hold(bpl->bpl_mos, - bpl->bpl_object, blkid << bpl->bpl_blockshift, - bpl, &bpl->bpl_cached_dbuf); - ASSERT(err || bpl->bpl_cached_dbuf->db_size == - 1ULL << bpl->bpl_blockshift); - } - return (err); -} - -int -bplist_iterate(bplist_t *bpl, uint64_t *itorp, blkptr_t *bp) -{ - uint64_t blk, off; - blkptr_t *bparray; - int err; - - mutex_enter(&bpl->bpl_lock); - - err = bplist_hold(bpl); - if (err) { - mutex_exit(&bpl->bpl_lock); - return (err); - } - - if (*itorp >= bpl->bpl_phys->bpl_entries) { - mutex_exit(&bpl->bpl_lock); - return (ENOENT); - } - - blk = *itorp >> bpl->bpl_bpshift; - off = P2PHASE(*itorp, 1ULL << bpl->bpl_bpshift); - - err = bplist_cache(bpl, blk); - if (err) { - mutex_exit(&bpl->bpl_lock); - return (err); - } - - bparray = bpl->bpl_cached_dbuf->db_data; - *bp = bparray[off]; - (*itorp)++; - mutex_exit(&bpl->bpl_lock); - return (0); -} - -int -bplist_enqueue(bplist_t *bpl, const blkptr_t *bp, dmu_tx_t *tx) +bplist_destroy(bplist_t *bpl) { - uint64_t blk, off; - blkptr_t *bparray; - int err; - - ASSERT(!BP_IS_HOLE(bp)); - mutex_enter(&bpl->bpl_lock); - err = bplist_hold(bpl); - if (err) - return (err); - - blk = bpl->bpl_phys->bpl_entries >> bpl->bpl_bpshift; - off = P2PHASE(bpl->bpl_phys->bpl_entries, 1ULL << bpl->bpl_bpshift); - - err = bplist_cache(bpl, blk); - if (err) { - mutex_exit(&bpl->bpl_lock); - return (err); - } - - dmu_buf_will_dirty(bpl->bpl_cached_dbuf, tx); - bparray = bpl->bpl_cached_dbuf->db_data; - bparray[off] = *bp; - - /* We never need the fill count. */ - bparray[off].blk_fill = 0; - - /* The bplist will compress better if we can leave off the checksum */ - bzero(&bparray[off].blk_cksum, sizeof (bparray[off].blk_cksum)); - - dmu_buf_will_dirty(bpl->bpl_dbuf, tx); - bpl->bpl_phys->bpl_entries++; - bpl->bpl_phys->bpl_bytes += - bp_get_dasize(dmu_objset_spa(bpl->bpl_mos), bp); - if (bpl->bpl_havecomp) { - bpl->bpl_phys->bpl_comp += BP_GET_PSIZE(bp); - bpl->bpl_phys->bpl_uncomp += BP_GET_UCSIZE(bp); - } - mutex_exit(&bpl->bpl_lock); - - return (0); + list_destroy(&bpl->bpl_list); + mutex_destroy(&bpl->bpl_lock); } -/* - * Deferred entry; will be written later by bplist_sync(). - */ void -bplist_enqueue_deferred(bplist_t *bpl, const blkptr_t *bp) +bplist_append(bplist_t *bpl, const blkptr_t *bp) { - bplist_q_t *bpq = kmem_alloc(sizeof (*bpq), KM_SLEEP); + bplist_entry_t *bpe = kmem_alloc(sizeof (*bpe), KM_SLEEP); - ASSERT(!BP_IS_HOLE(bp)); mutex_enter(&bpl->bpl_lock); - bpq->bpq_blk = *bp; - bpq->bpq_next = bpl->bpl_queue; - bpl->bpl_queue = bpq; + bpe->bpe_blk = *bp; + list_insert_tail(&bpl->bpl_list, bpe); mutex_exit(&bpl->bpl_lock); } void -bplist_sync(bplist_t *bpl, dmu_tx_t *tx) +bplist_iterate(bplist_t *bpl, bplist_itor_t *func, void *arg, dmu_tx_t *tx) { - bplist_q_t *bpq; + bplist_entry_t *bpe; mutex_enter(&bpl->bpl_lock); - while ((bpq = bpl->bpl_queue) != NULL) { - bpl->bpl_queue = bpq->bpq_next; + while (bpe = list_head(&bpl->bpl_list)) { + list_remove(&bpl->bpl_list, bpe); mutex_exit(&bpl->bpl_lock); - VERIFY(0 == bplist_enqueue(bpl, &bpq->bpq_blk, tx)); - kmem_free(bpq, sizeof (*bpq)); + func(arg, &bpe->bpe_blk, tx); + kmem_free(bpe, sizeof (*bpe)); mutex_enter(&bpl->bpl_lock); } mutex_exit(&bpl->bpl_lock); } - -void -bplist_vacate(bplist_t *bpl, dmu_tx_t *tx) -{ - mutex_enter(&bpl->bpl_lock); - ASSERT3P(bpl->bpl_queue, ==, NULL); - VERIFY(0 == bplist_hold(bpl)); - dmu_buf_will_dirty(bpl->bpl_dbuf, tx); - VERIFY(0 == dmu_free_range(bpl->bpl_mos, - bpl->bpl_object, 0, -1ULL, tx)); - bpl->bpl_phys->bpl_entries = 0; - bpl->bpl_phys->bpl_bytes = 0; - if (bpl->bpl_havecomp) { - bpl->bpl_phys->bpl_comp = 0; - bpl->bpl_phys->bpl_uncomp = 0; - } - mutex_exit(&bpl->bpl_lock); -} - -int -bplist_space(bplist_t *bpl, uint64_t *usedp, uint64_t *compp, uint64_t *uncompp) -{ - int err; - - mutex_enter(&bpl->bpl_lock); - - err = bplist_hold(bpl); - if (err) { - mutex_exit(&bpl->bpl_lock); - return (err); - } - - *usedp = bpl->bpl_phys->bpl_bytes; - if (bpl->bpl_havecomp) { - *compp = bpl->bpl_phys->bpl_comp; - *uncompp = bpl->bpl_phys->bpl_uncomp; - } - mutex_exit(&bpl->bpl_lock); - - if (!bpl->bpl_havecomp) { - uint64_t itor = 0, comp = 0, uncomp = 0; - blkptr_t bp; - - while ((err = bplist_iterate(bpl, &itor, &bp)) == 0) { - comp += BP_GET_PSIZE(&bp); - uncomp += BP_GET_UCSIZE(&bp); - } - if (err == ENOENT) - err = 0; - *compp = comp; - *uncompp = uncomp; - } - - return (err); -} - -/* - * Return (in *dasizep) the amount of space on the deadlist which is: - * mintxg < blk_birth <= maxtxg - */ -int -bplist_space_birthrange(bplist_t *bpl, uint64_t mintxg, uint64_t maxtxg, - uint64_t *dasizep) -{ - uint64_t size = 0; - uint64_t itor = 0; - blkptr_t bp; - int err; - - /* - * As an optimization, if they want the whole txg range, just - * get bpl_bytes rather than iterating over the bps. - */ - if (mintxg < TXG_INITIAL && maxtxg == UINT64_MAX) { - mutex_enter(&bpl->bpl_lock); - err = bplist_hold(bpl); - if (err == 0) - *dasizep = bpl->bpl_phys->bpl_bytes; - mutex_exit(&bpl->bpl_lock); - return (err); - } - - while ((err = bplist_iterate(bpl, &itor, &bp)) == 0) { - if (bp.blk_birth > mintxg && bp.blk_birth <= maxtxg) { - size += - bp_get_dasize(dmu_objset_spa(bpl->bpl_mos), &bp); - } - } - if (err == ENOENT) - err = 0; - *dasizep = size; - return (err); -} diff --git a/module/zfs/bpobj.c b/module/zfs/bpobj.c new file mode 100644 index 000000000..f81c48aca --- /dev/null +++ b/module/zfs/bpobj.c @@ -0,0 +1,462 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/bpobj.h> +#include <sys/zfs_context.h> +#include <sys/refcount.h> + +uint64_t +bpobj_alloc(objset_t *os, int blocksize, dmu_tx_t *tx) +{ + int size; + + if (spa_version(dmu_objset_spa(os)) < SPA_VERSION_BPOBJ_ACCOUNT) + size = BPOBJ_SIZE_V0; + else if (spa_version(dmu_objset_spa(os)) < SPA_VERSION_DEADLISTS) + size = BPOBJ_SIZE_V1; + else + size = sizeof (bpobj_phys_t); + + return (dmu_object_alloc(os, DMU_OT_BPOBJ, blocksize, + DMU_OT_BPOBJ_HDR, size, tx)); +} + +void +bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx) +{ + int64_t i; + bpobj_t bpo; + dmu_object_info_t doi; + int epb; + dmu_buf_t *dbuf = NULL; + + VERIFY3U(0, ==, bpobj_open(&bpo, os, obj)); + + mutex_enter(&bpo.bpo_lock); + + if (!bpo.bpo_havesubobj || bpo.bpo_phys->bpo_subobjs == 0) + goto out; + + VERIFY3U(0, ==, dmu_object_info(os, bpo.bpo_phys->bpo_subobjs, &doi)); + epb = doi.doi_data_block_size / sizeof (uint64_t); + + for (i = bpo.bpo_phys->bpo_num_subobjs - 1; i >= 0; i--) { + uint64_t *objarray; + uint64_t offset, blkoff; + + offset = i * sizeof (uint64_t); + blkoff = P2PHASE(i, epb); + + if (dbuf == NULL || dbuf->db_offset > offset) { + if (dbuf) + dmu_buf_rele(dbuf, FTAG); + VERIFY3U(0, ==, dmu_buf_hold(os, + bpo.bpo_phys->bpo_subobjs, offset, FTAG, &dbuf, 0)); + } + + ASSERT3U(offset, >=, dbuf->db_offset); + ASSERT3U(offset, <, dbuf->db_offset + dbuf->db_size); + + objarray = dbuf->db_data; + bpobj_free(os, objarray[blkoff], tx); + } + if (dbuf) { + dmu_buf_rele(dbuf, FTAG); + dbuf = NULL; + } + VERIFY3U(0, ==, dmu_object_free(os, bpo.bpo_phys->bpo_subobjs, tx)); + +out: + mutex_exit(&bpo.bpo_lock); + bpobj_close(&bpo); + + VERIFY3U(0, ==, dmu_object_free(os, obj, tx)); +} + +int +bpobj_open(bpobj_t *bpo, objset_t *os, uint64_t object) +{ + dmu_object_info_t doi; + int err; + + err = dmu_object_info(os, object, &doi); + if (err) + return (err); + + bzero(bpo, sizeof (*bpo)); + mutex_init(&bpo->bpo_lock, NULL, MUTEX_DEFAULT, NULL); + + ASSERT(bpo->bpo_dbuf == NULL); + ASSERT(bpo->bpo_phys == NULL); + ASSERT(object != 0); + ASSERT3U(doi.doi_type, ==, DMU_OT_BPOBJ); + ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_BPOBJ_HDR); + + bpo->bpo_os = os; + bpo->bpo_object = object; + bpo->bpo_epb = doi.doi_data_block_size >> SPA_BLKPTRSHIFT; + bpo->bpo_havecomp = (doi.doi_bonus_size > BPOBJ_SIZE_V0); + bpo->bpo_havesubobj = (doi.doi_bonus_size > BPOBJ_SIZE_V1); + + err = dmu_bonus_hold(bpo->bpo_os, + bpo->bpo_object, bpo, &bpo->bpo_dbuf); + if (err) + return (err); + bpo->bpo_phys = bpo->bpo_dbuf->db_data; + return (0); +} + +void +bpobj_close(bpobj_t *bpo) +{ + /* Lame workaround for closing a bpobj that was never opened. */ + if (bpo->bpo_object == 0) + return; + + dmu_buf_rele(bpo->bpo_dbuf, bpo); + if (bpo->bpo_cached_dbuf != NULL) + dmu_buf_rele(bpo->bpo_cached_dbuf, bpo); + bpo->bpo_dbuf = NULL; + bpo->bpo_phys = NULL; + bpo->bpo_cached_dbuf = NULL; + + mutex_destroy(&bpo->bpo_lock); +} + +static int +bpobj_iterate_impl(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx, + boolean_t free) +{ + dmu_object_info_t doi; + int epb; + int64_t i; + int err = 0; + dmu_buf_t *dbuf = NULL; + + mutex_enter(&bpo->bpo_lock); + + if (free) + dmu_buf_will_dirty(bpo->bpo_dbuf, tx); + + for (i = bpo->bpo_phys->bpo_num_blkptrs - 1; i >= 0; i--) { + blkptr_t *bparray; + blkptr_t *bp; + uint64_t offset, blkoff; + + offset = i * sizeof (blkptr_t); + blkoff = P2PHASE(i, bpo->bpo_epb); + + if (dbuf == NULL || dbuf->db_offset > offset) { + if (dbuf) + dmu_buf_rele(dbuf, FTAG); + err = dmu_buf_hold(bpo->bpo_os, bpo->bpo_object, offset, + FTAG, &dbuf, 0); + if (err) + break; + } + + ASSERT3U(offset, >=, dbuf->db_offset); + ASSERT3U(offset, <, dbuf->db_offset + dbuf->db_size); + + bparray = dbuf->db_data; + bp = &bparray[blkoff]; + err = func(arg, bp, tx); + if (err) + break; + if (free) { + bpo->bpo_phys->bpo_bytes -= + bp_get_dsize_sync(dmu_objset_spa(bpo->bpo_os), bp); + ASSERT3S(bpo->bpo_phys->bpo_bytes, >=, 0); + if (bpo->bpo_havecomp) { + bpo->bpo_phys->bpo_comp -= BP_GET_PSIZE(bp); + bpo->bpo_phys->bpo_uncomp -= BP_GET_UCSIZE(bp); + } + bpo->bpo_phys->bpo_num_blkptrs--; + ASSERT3S(bpo->bpo_phys->bpo_num_blkptrs, >=, 0); + } + } + if (dbuf) { + dmu_buf_rele(dbuf, FTAG); + dbuf = NULL; + } + if (free) { + i++; + VERIFY3U(0, ==, dmu_free_range(bpo->bpo_os, bpo->bpo_object, + i * sizeof (blkptr_t), -1ULL, tx)); + } + if (err || !bpo->bpo_havesubobj || bpo->bpo_phys->bpo_subobjs == 0) + goto out; + + ASSERT(bpo->bpo_havecomp); + err = dmu_object_info(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs, &doi); + if (err) + return (err); + epb = doi.doi_data_block_size / sizeof (uint64_t); + + for (i = bpo->bpo_phys->bpo_num_subobjs - 1; i >= 0; i--) { + uint64_t *objarray; + uint64_t offset, blkoff; + bpobj_t sublist; + uint64_t used_before, comp_before, uncomp_before; + uint64_t used_after, comp_after, uncomp_after; + + offset = i * sizeof (uint64_t); + blkoff = P2PHASE(i, epb); + + if (dbuf == NULL || dbuf->db_offset > offset) { + if (dbuf) + dmu_buf_rele(dbuf, FTAG); + err = dmu_buf_hold(bpo->bpo_os, + bpo->bpo_phys->bpo_subobjs, offset, FTAG, &dbuf, 0); + if (err) + break; + } + + ASSERT3U(offset, >=, dbuf->db_offset); + ASSERT3U(offset, <, dbuf->db_offset + dbuf->db_size); + + objarray = dbuf->db_data; + err = bpobj_open(&sublist, bpo->bpo_os, objarray[blkoff]); + if (err) + break; + if (free) { + err = bpobj_space(&sublist, + &used_before, &comp_before, &uncomp_before); + if (err) + break; + } + err = bpobj_iterate_impl(&sublist, func, arg, tx, free); + if (free) { + VERIFY3U(0, ==, bpobj_space(&sublist, + &used_after, &comp_after, &uncomp_after)); + bpo->bpo_phys->bpo_bytes -= used_before - used_after; + ASSERT3S(bpo->bpo_phys->bpo_bytes, >=, 0); + bpo->bpo_phys->bpo_comp -= comp_before - used_after; + bpo->bpo_phys->bpo_uncomp -= + uncomp_before - uncomp_after; + } + + bpobj_close(&sublist); + if (err) + break; + if (free) { + err = dmu_object_free(bpo->bpo_os, + objarray[blkoff], tx); + if (err) + break; + bpo->bpo_phys->bpo_num_subobjs--; + ASSERT3S(bpo->bpo_phys->bpo_num_subobjs, >=, 0); + } + } + if (dbuf) { + dmu_buf_rele(dbuf, FTAG); + dbuf = NULL; + } + if (free) { + VERIFY3U(0, ==, dmu_free_range(bpo->bpo_os, + bpo->bpo_phys->bpo_subobjs, + (i + 1) * sizeof (uint64_t), -1ULL, tx)); + } + +out: + /* If there are no entries, there should be no bytes. */ + ASSERT(bpo->bpo_phys->bpo_num_blkptrs > 0 || + (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_num_subobjs > 0) || + bpo->bpo_phys->bpo_bytes == 0); + + mutex_exit(&bpo->bpo_lock); + return (err); +} + +/* + * Iterate and remove the entries. If func returns nonzero, iteration + * will stop and that entry will not be removed. + */ +int +bpobj_iterate(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx) +{ + return (bpobj_iterate_impl(bpo, func, arg, tx, B_TRUE)); +} + +/* + * Iterate the entries. If func returns nonzero, iteration will stop. + */ +int +bpobj_iterate_nofree(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx) +{ + return (bpobj_iterate_impl(bpo, func, arg, tx, B_FALSE)); +} + +void +bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx) +{ + bpobj_t subbpo; + uint64_t used, comp, uncomp; + + ASSERT(bpo->bpo_havesubobj); + ASSERT(bpo->bpo_havecomp); + + VERIFY3U(0, ==, bpobj_open(&subbpo, bpo->bpo_os, subobj)); + VERIFY3U(0, ==, bpobj_space(&subbpo, &used, &comp, &uncomp)); + bpobj_close(&subbpo); + + if (used == 0) { + /* No point in having an empty subobj. */ + bpobj_free(bpo->bpo_os, subobj, tx); + return; + } + + dmu_buf_will_dirty(bpo->bpo_dbuf, tx); + if (bpo->bpo_phys->bpo_subobjs == 0) { + bpo->bpo_phys->bpo_subobjs = dmu_object_alloc(bpo->bpo_os, + DMU_OT_BPOBJ_SUBOBJ, SPA_MAXBLOCKSIZE, DMU_OT_NONE, 0, tx); + } + + mutex_enter(&bpo->bpo_lock); + dmu_write(bpo->bpo_os, bpo->bpo_phys->bpo_subobjs, + bpo->bpo_phys->bpo_num_subobjs * sizeof (subobj), + sizeof (subobj), &subobj, tx); + bpo->bpo_phys->bpo_num_subobjs++; + bpo->bpo_phys->bpo_bytes += used; + bpo->bpo_phys->bpo_comp += comp; + bpo->bpo_phys->bpo_uncomp += uncomp; + mutex_exit(&bpo->bpo_lock); +} + +void +bpobj_enqueue(bpobj_t *bpo, const blkptr_t *bp, dmu_tx_t *tx) +{ + blkptr_t stored_bp = *bp; + uint64_t offset; + int blkoff; + blkptr_t *bparray; + + ASSERT(!BP_IS_HOLE(bp)); + + /* We never need the fill count. */ + stored_bp.blk_fill = 0; + + /* The bpobj will compress better if we can leave off the checksum */ + if (!BP_GET_DEDUP(bp)) + bzero(&stored_bp.blk_cksum, sizeof (stored_bp.blk_cksum)); + + mutex_enter(&bpo->bpo_lock); + + offset = bpo->bpo_phys->bpo_num_blkptrs * sizeof (stored_bp); + blkoff = P2PHASE(bpo->bpo_phys->bpo_num_blkptrs, bpo->bpo_epb); + + if (bpo->bpo_cached_dbuf == NULL || + offset < bpo->bpo_cached_dbuf->db_offset || + offset >= bpo->bpo_cached_dbuf->db_offset + + bpo->bpo_cached_dbuf->db_size) { + if (bpo->bpo_cached_dbuf) + dmu_buf_rele(bpo->bpo_cached_dbuf, bpo); + VERIFY3U(0, ==, dmu_buf_hold(bpo->bpo_os, bpo->bpo_object, + offset, bpo, &bpo->bpo_cached_dbuf, 0)); + } + + dmu_buf_will_dirty(bpo->bpo_cached_dbuf, tx); + bparray = bpo->bpo_cached_dbuf->db_data; + bparray[blkoff] = stored_bp; + + dmu_buf_will_dirty(bpo->bpo_dbuf, tx); + bpo->bpo_phys->bpo_num_blkptrs++; + bpo->bpo_phys->bpo_bytes += + bp_get_dsize_sync(dmu_objset_spa(bpo->bpo_os), bp); + if (bpo->bpo_havecomp) { + bpo->bpo_phys->bpo_comp += BP_GET_PSIZE(bp); + bpo->bpo_phys->bpo_uncomp += BP_GET_UCSIZE(bp); + } + mutex_exit(&bpo->bpo_lock); +} + +struct space_range_arg { + spa_t *spa; + uint64_t mintxg; + uint64_t maxtxg; + uint64_t used; + uint64_t comp; + uint64_t uncomp; +}; + +/* ARGSUSED */ +static int +space_range_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + struct space_range_arg *sra = arg; + + if (bp->blk_birth > sra->mintxg && bp->blk_birth <= sra->maxtxg) { + sra->used += bp_get_dsize_sync(sra->spa, bp); + sra->comp += BP_GET_PSIZE(bp); + sra->uncomp += BP_GET_UCSIZE(bp); + } + return (0); +} + +int +bpobj_space(bpobj_t *bpo, uint64_t *usedp, uint64_t *compp, uint64_t *uncompp) +{ + mutex_enter(&bpo->bpo_lock); + + *usedp = bpo->bpo_phys->bpo_bytes; + if (bpo->bpo_havecomp) { + *compp = bpo->bpo_phys->bpo_comp; + *uncompp = bpo->bpo_phys->bpo_uncomp; + mutex_exit(&bpo->bpo_lock); + return (0); + } else { + mutex_exit(&bpo->bpo_lock); + return (bpobj_space_range(bpo, 0, UINT64_MAX, + usedp, compp, uncompp)); + } +} + +/* + * Return the amount of space in the bpobj which is: + * mintxg < blk_birth <= maxtxg + */ +int +bpobj_space_range(bpobj_t *bpo, uint64_t mintxg, uint64_t maxtxg, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp) +{ + struct space_range_arg sra = { 0 }; + int err; + + /* + * As an optimization, if they want the whole txg range, just + * get bpo_bytes rather than iterating over the bps. + */ + if (mintxg < TXG_INITIAL && maxtxg == UINT64_MAX && bpo->bpo_havecomp) + return (bpobj_space(bpo, usedp, compp, uncompp)); + + sra.spa = dmu_objset_spa(bpo->bpo_os); + sra.mintxg = mintxg; + sra.maxtxg = maxtxg; + + err = bpobj_iterate_nofree(bpo, space_range_cb, &sra, NULL); + *usedp = sra.used; + *compp = sra.comp; + *uncompp = sra.uncomp; + return (err); +} diff --git a/module/zfs/dbuf.c b/module/zfs/dbuf.c index 1b6f242dd..42ae43997 100644 --- a/module/zfs/dbuf.c +++ b/module/zfs/dbuf.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -34,14 +33,12 @@ #include <sys/spa.h> #include <sys/zio.h> #include <sys/dmu_zfetch.h> +#include <sys/sa.h> +#include <sys/sa_impl.h> static void dbuf_destroy(dmu_buf_impl_t *db); static int dbuf_undirty(dmu_buf_impl_t *db, dmu_tx_t *tx); static void dbuf_write(dbuf_dirty_record_t *dr, arc_buf_t *data, dmu_tx_t *tx); -static arc_done_func_t dbuf_write_ready; -static arc_done_func_t dbuf_write_done; -static zio_done_func_t dbuf_skip_write_ready; -static zio_done_func_t dbuf_skip_write_done; /* * Global data structures and functions for the dbuf cache. @@ -109,7 +106,7 @@ dmu_buf_impl_t * dbuf_find(dnode_t *dn, uint8_t level, uint64_t blkid) { dbuf_hash_table_t *h = &dbuf_hash_table; - objset_impl_t *os = dn->dn_objset; + objset_t *os = dn->dn_objset; uint64_t obj = dn->dn_object; uint64_t hv = DBUF_HASH(os, obj, level, blkid); uint64_t idx = hv & h->hash_table_mask; @@ -140,7 +137,7 @@ static dmu_buf_impl_t * dbuf_hash_insert(dmu_buf_impl_t *db) { dbuf_hash_table_t *h = &dbuf_hash_table; - objset_impl_t *os = db->db_objset; + objset_t *os = db->db_objset; uint64_t obj = db->db.db_object; int level = db->db_level; uint64_t blkid = db->db_blkid; @@ -285,6 +282,7 @@ static void dbuf_verify(dmu_buf_impl_t *db) { dnode_t *dn = db->db_dnode; + dbuf_dirty_record_t *dr; ASSERT(MUTEX_HELD(&db->db_mtx)); @@ -299,24 +297,34 @@ dbuf_verify(dmu_buf_impl_t *db) ASSERT3U(db->db.db_object, ==, dn->dn_object); ASSERT3P(db->db_objset, ==, dn->dn_objset); ASSERT3U(db->db_level, <, dn->dn_nlevels); - ASSERT(db->db_blkid == DB_BONUS_BLKID || - list_head(&dn->dn_dbufs)); + ASSERT(db->db_blkid == DMU_BONUS_BLKID || db->db_blkid == + DMU_SPILL_BLKID || list_head(&dn->dn_dbufs)); } - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID) { + ASSERT(dn != NULL); + ASSERT3U(db->db.db_size, >=, dn->dn_bonuslen); + ASSERT3U(db->db.db_offset, ==, DMU_BONUS_BLKID); + } else if (db->db_blkid == DMU_SPILL_BLKID) { ASSERT(dn != NULL); ASSERT3U(db->db.db_size, >=, dn->dn_bonuslen); - ASSERT3U(db->db.db_offset, ==, DB_BONUS_BLKID); + ASSERT3U(db->db.db_offset, ==, 0); } else { ASSERT3U(db->db.db_offset, ==, db->db_blkid * db->db.db_size); } + for (dr = db->db_data_pending; dr != NULL; dr = dr->dr_next) + ASSERT(dr->dr_dbuf == db); + + for (dr = db->db_last_dirty; dr != NULL; dr = dr->dr_next) + ASSERT(dr->dr_dbuf == db); + /* * We can't assert that db_size matches dn_datablksz because it * can be momentarily different when another thread is doing * dnode_set_blksz(). */ if (db->db_level == 0 && db->db.db_object == DMU_META_DNODE_OBJECT) { - dbuf_dirty_record_t *dr = db->db_data_pending; + dr = db->db_data_pending; /* * It should only be modified in syncing context, so * make sure we only have one copy of the data. @@ -333,8 +341,9 @@ dbuf_verify(dmu_buf_impl_t *db) ASSERT(db->db_parent == NULL); else ASSERT(db->db_parent != NULL); - ASSERT3P(db->db_blkptr, ==, - &dn->dn_phys->dn_blkptr[db->db_blkid]); + if (db->db_blkid != DMU_SPILL_BLKID) + ASSERT3P(db->db_blkptr, ==, + &dn->dn_phys->dn_blkptr[db->db_blkid]); } else { /* db is pointed to by an indirect block */ int epb = db->db_parent->db.db_size >> SPA_BLKPTRSHIFT; @@ -354,7 +363,8 @@ dbuf_verify(dmu_buf_impl_t *db) } } if ((db->db_blkptr == NULL || BP_IS_HOLE(db->db_blkptr)) && - db->db.db_data && db->db_blkid != DB_BONUS_BLKID && + (db->db_buf == NULL || db->db_buf->b_data) && + db->db.db_data && db->db_blkid != DMU_BONUS_BLKID && db->db_state != DB_FILL && !dn->dn_free_txg) { /* * If the blkptr isn't set but they have nonzero data, @@ -403,6 +413,29 @@ dbuf_set_data(dmu_buf_impl_t *db, arc_buf_t *buf) } } +/* + * Loan out an arc_buf for read. Return the loaned arc_buf. + */ +arc_buf_t * +dbuf_loan_arcbuf(dmu_buf_impl_t *db) +{ + arc_buf_t *abuf; + + mutex_enter(&db->db_mtx); + if (arc_released(db->db_buf) || refcount_count(&db->db_holds) > 1) { + int blksz = db->db.db_size; + mutex_exit(&db->db_mtx); + abuf = arc_loan_buf(db->db_dnode->dn_objset->os_spa, blksz); + bcopy(db->db.db_data, abuf->b_data, blksz); + } else { + abuf = db->db_buf; + arc_loan_inuse_buf(abuf, db); + dbuf_set_data(db, NULL); + mutex_exit(&db->db_mtx); + } + return (abuf); +} + uint64_t dbuf_whichblock(dnode_t *dn, uint64_t offset) { @@ -439,14 +472,13 @@ dbuf_read_done(zio_t *zio, arc_buf_t *buf, void *vdb) dbuf_set_data(db, buf); db->db_state = DB_CACHED; } else { - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); ASSERT3P(db->db_buf, ==, NULL); VERIFY(arc_buf_remove_ref(buf, db) == 1); db->db_state = DB_UNCACHED; } cv_broadcast(&db->db_changed); - mutex_exit(&db->db_mtx); - dbuf_rele(db, NULL); + dbuf_rele_and_unlock(db, NULL); } static void @@ -464,7 +496,7 @@ dbuf_read_impl(dmu_buf_impl_t *db, zio_t *zio, uint32_t *flags) ASSERT(db->db_state == DB_UNCACHED); ASSERT(db->db_buf == NULL); - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID) { int bonuslen = MIN(dn->dn_bonuslen, dn->dn_phys->dn_bonuslen); ASSERT3U(bonuslen, <=, db->db.db_size); @@ -505,11 +537,9 @@ dbuf_read_impl(dmu_buf_impl_t *db, zio_t *zio, uint32_t *flags) if (DBUF_IS_L2CACHEABLE(db)) aflags |= ARC_L2CACHE; - zb.zb_objset = db->db_objset->os_dsl_dataset ? - db->db_objset->os_dsl_dataset->ds_object : 0; - zb.zb_object = db->db.db_object; - zb.zb_level = db->db_level; - zb.zb_blkid = db->db_blkid; + SET_BOOKMARK(&zb, db->db_objset->os_dsl_dataset ? + db->db_objset->os_dsl_dataset->ds_object : DMU_META_OBJSET, + db->db.db_object, db->db_level, db->db_blkid); dbuf_add_ref(db, NULL); /* ZIO_FLAG_CANFAIL callers have to check the parent zio's error */ @@ -519,7 +549,7 @@ dbuf_read_impl(dmu_buf_impl_t *db, zio_t *zio, uint32_t *flags) else pbuf = db->db_objset->os_phys_buf; - (void) arc_read(zio, dn->dn_objset->os_spa, db->db_blkptr, pbuf, + (void) dsl_read(zio, dn->dn_objset->os_spa, db->db_blkptr, pbuf, dbuf_read_done, db, ZIO_PRIORITY_SYNC_READ, (*flags & DB_RF_CANFAIL) ? ZIO_FLAG_CANFAIL : ZIO_FLAG_MUSTSUCCEED, &aflags, &zb); @@ -546,7 +576,7 @@ dbuf_read(dmu_buf_impl_t *db, zio_t *zio, uint32_t flags) if ((flags & DB_RF_HAVESTRUCT) == 0) rw_enter(&db->db_dnode->dn_struct_rwlock, RW_READER); - prefetch = db->db_level == 0 && db->db_blkid != DB_BONUS_BLKID && + prefetch = db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID && (flags & DB_RF_NOPREFETCH) == 0 && db->db_dnode != NULL && DBUF_IS_CACHEABLE(db); @@ -606,7 +636,7 @@ static void dbuf_noread(dmu_buf_impl_t *db) { ASSERT(!refcount_is_zero(&db->db_holds)); - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); mutex_enter(&db->db_mtx); while (db->db_state == DB_READ || db->db_state == DB_FILL) cv_wait(&db->db_changed, &db->db_mtx); @@ -651,7 +681,7 @@ dbuf_fix_old_data(dmu_buf_impl_t *db, uint64_t txg) if (dr == NULL || (dr->dt.dl.dr_data != - ((db->db_blkid == DB_BONUS_BLKID) ? db->db.db_data : db->db_buf))) + ((db->db_blkid == DMU_BONUS_BLKID) ? db->db.db_data : db->db_buf))) return; /* @@ -662,7 +692,7 @@ dbuf_fix_old_data(dmu_buf_impl_t *db, uint64_t txg) * just null out the current db_data pointer. */ ASSERT(dr->dr_txg >= txg - 2); - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID) { /* Note that the data bufs here are zio_bufs */ dr->dt.dl.dr_data = zio_buf_alloc(DN_MAX_BONUSLEN); arc_space_consume(DN_MAX_BONUSLEN, ARC_SPACE_OTHER); @@ -682,23 +712,23 @@ void dbuf_unoverride(dbuf_dirty_record_t *dr) { dmu_buf_impl_t *db = dr->dr_dbuf; + blkptr_t *bp = &dr->dt.dl.dr_overridden_by; uint64_t txg = dr->dr_txg; ASSERT(MUTEX_HELD(&db->db_mtx)); ASSERT(dr->dt.dl.dr_override_state != DR_IN_DMU_SYNC); ASSERT(db->db_level == 0); - if (db->db_blkid == DB_BONUS_BLKID || + if (db->db_blkid == DMU_BONUS_BLKID || dr->dt.dl.dr_override_state == DR_NOT_OVERRIDDEN) return; + ASSERT(db->db_data_pending != dr); + /* free this block */ - if (!BP_IS_HOLE(&dr->dt.dl.dr_overridden_by)) { - /* XXX can get silent EIO here */ - (void) dsl_free(NULL, - spa_get_dsl(db->db_dnode->dn_objset->os_spa), - txg, &dr->dt.dl.dr_overridden_by, NULL, NULL, ARC_WAIT); - } + if (!BP_IS_HOLE(bp)) + zio_free(db->db_dnode->dn_objset->os_spa, txg, bp); + dr->dt.dl.dr_override_state = DR_NOT_OVERRIDDEN; /* * Release the already-written buffer, so we leave it in @@ -727,7 +757,7 @@ dbuf_free_range(dnode_t *dn, uint64_t start, uint64_t end, dmu_tx_t *tx) uint64_t first_l1 = start >> epbs; uint64_t last_l1 = end >> epbs; - if (end > dn->dn_maxblkid) { + if (end > dn->dn_maxblkid && (end != DMU_SPILL_BLKID)) { end = dn->dn_maxblkid; last_l1 = end >> epbs; } @@ -735,7 +765,7 @@ dbuf_free_range(dnode_t *dn, uint64_t start, uint64_t end, dmu_tx_t *tx) mutex_enter(&dn->dn_dbufs_mtx); for (db = list_head(&dn->dn_dbufs); db; db = db_next) { db_next = list_next(&dn->dn_dbufs, db); - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); if (db->db_level == 1 && db->db_blkid >= first_l1 && db->db_blkid <= last_l1) { @@ -791,7 +821,8 @@ dbuf_free_range(dnode_t *dn, uint64_t start, uint64_t end, dmu_tx_t *tx) * size to reflect that this buffer may * contain new data when we sync. */ - if (db->db_blkid > dn->dn_maxblkid) + if (db->db_blkid != DMU_SPILL_BLKID && + db->db_blkid > dn->dn_maxblkid) dn->dn_maxblkid = db->db_blkid; dbuf_unoverride(dr); } else { @@ -837,7 +868,7 @@ dbuf_block_freeable(dmu_buf_impl_t *db) /* If we don't exist or are in a snapshot, we can't be freed */ if (birth_txg) return (ds == NULL || - dsl_dataset_block_freeable(ds, birth_txg)); + dsl_dataset_block_freeable(ds, db->db_blkptr, birth_txg)); else return (FALSE); } @@ -849,7 +880,7 @@ dbuf_new_size(dmu_buf_impl_t *db, int size, dmu_tx_t *tx) int osize = db->db.db_size; arc_buf_contents_t type = DBUF_GET_BUFC_TYPE(db); - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); /* XXX does *this* func really need the lock? */ ASSERT(RW_WRITE_HELD(&db->db_dnode->dn_struct_rwlock)); @@ -890,11 +921,31 @@ dbuf_new_size(dmu_buf_impl_t *db, int size, dmu_tx_t *tx) dnode_willuse_space(db->db_dnode, size-osize, tx); } +void +dbuf_release_bp(dmu_buf_impl_t *db) +{ + objset_t *os = db->db_dnode->dn_objset; + zbookmark_t zb; + + ASSERT(dsl_pool_sync_context(dmu_objset_pool(os))); + ASSERT(arc_released(os->os_phys_buf) || + list_link_active(&os->os_dsl_dataset->ds_synced_link)); + ASSERT(db->db_parent == NULL || arc_released(db->db_parent->db_buf)); + + zb.zb_objset = os->os_dsl_dataset ? + os->os_dsl_dataset->ds_object : 0; + zb.zb_object = db->db.db_object; + zb.zb_level = db->db_level; + zb.zb_blkid = db->db_blkid; + (void) arc_release_bp(db->db_buf, db, + db->db_blkptr, os->os_spa, &zb); +} + dbuf_dirty_record_t * dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) { dnode_t *dn = db->db_dnode; - objset_impl_t *os = dn->dn_objset; + objset_t *os = dn->dn_objset; dbuf_dirty_record_t **drp, *dr; int drop_struct_lock = FALSE; boolean_t do_free_accounting = B_FALSE; @@ -946,6 +997,9 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) } mutex_exit(&dn->dn_mtx); + if (db->db_blkid == DMU_SPILL_BLKID) + dn->dn_have_spill = B_TRUE; + /* * If this buffer is already dirty, we're done. */ @@ -955,13 +1009,14 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) while ((dr = *drp) != NULL && dr->dr_txg > tx->tx_txg) drp = &dr->dr_next; if (dr && dr->dr_txg == tx->tx_txg) { - if (db->db_level == 0 && db->db_blkid != DB_BONUS_BLKID) { + if (db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID) { /* * If this buffer has already been written out, * we now need to reset its state. */ dbuf_unoverride(dr); - if (db->db.db_object != DMU_META_DNODE_OBJECT) + if (db->db.db_object != DMU_META_DNODE_OBJECT && + db->db_state != DB_NOFILL) arc_buf_thaw(db->db_buf); } mutex_exit(&db->db_mtx); @@ -995,12 +1050,12 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) dprintf_dbuf(db, "size=%llx\n", (u_longlong_t)db->db.db_size); - if (db->db_blkid != DB_BONUS_BLKID) { + if (db->db_blkid != DMU_BONUS_BLKID) { /* * Update the accounting. * Note: we delay "free accounting" until after we drop * the db_mtx. This keeps us from grabbing other locks - * (and possibly deadlocking) in bp_get_dasize() while + * (and possibly deadlocking) in bp_get_dsize() while * also holding the db_mtx. */ dnode_willuse_space(dn, db->db.db_size, tx); @@ -1017,7 +1072,7 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) void *data_old = db->db_buf; if (db->db_state != DB_NOFILL) { - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID) { dbuf_fix_old_data(db, tx->tx_txg); data_old = db->db.db_data; } else if (db->db.db_object != DMU_META_DNODE_OBJECT) { @@ -1053,7 +1108,8 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) * and dbuf_dirty. We win, as though the dbuf_noread() had * happened after the free. */ - if (db->db_level == 0 && db->db_blkid != DB_BONUS_BLKID) { + if (db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID && + db->db_blkid != DMU_SPILL_BLKID) { mutex_enter(&dn->dn_mtx); dnode_clear_range(dn, db->db_blkid, 1, tx); mutex_exit(&dn->dn_mtx); @@ -1069,7 +1125,8 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) mutex_exit(&db->db_mtx); - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID || + db->db_blkid == DMU_SPILL_BLKID) { mutex_enter(&dn->dn_mtx); ASSERT(!list_link_active(&dr->dr_dirty_node)); list_insert_tail(&dn->dn_dirty_records[txgoff], dr); @@ -1079,7 +1136,7 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) } else if (do_free_accounting) { blkptr_t *bp = db->db_blkptr; int64_t willfree = (bp && !BP_IS_HOLE(bp)) ? - bp_get_dasize(os->os_spa, bp) : db->db.db_size; + bp_get_dsize(os->os_spa, bp) : db->db.db_size; /* * This is only a guess -- if the dbuf is dirty * in a previous txg, we don't know how much @@ -1111,6 +1168,7 @@ dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx) parent = dbuf_hold_level(dn, db->db_level+1, db->db_blkid >> epbs, FTAG); + ASSERT(parent != NULL); parent_held = TRUE; } if (drop_struct_lock) @@ -1157,10 +1215,9 @@ dbuf_undirty(dmu_buf_impl_t *db, dmu_tx_t *tx) dbuf_dirty_record_t *dr, **drp; ASSERT(txg != 0); - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); mutex_enter(&db->db_mtx); - /* * If this buffer is not dirty, we're done. */ @@ -1172,6 +1229,7 @@ dbuf_undirty(dmu_buf_impl_t *db, dmu_tx_t *tx) return (0); } ASSERT(dr->dr_txg == txg); + ASSERT(dr->dr_dbuf == db); /* * If this buffer is currently held, we cannot undirty @@ -1231,7 +1289,7 @@ dbuf_undirty(dmu_buf_impl_t *db, dmu_tx_t *tx) if (refcount_remove(&db->db_holds, (void *)(uintptr_t)txg) == 0) { arc_buf_t *buf = db->db_buf; - ASSERT(arc_released(buf)); + ASSERT(db->db_state == DB_NOFILL || arc_released(buf)); dbuf_set_data(db, NULL); VERIFY(arc_buf_remove_ref(buf, db) == 1); dbuf_evict(db); @@ -1272,7 +1330,7 @@ dmu_buf_will_fill(dmu_buf_t *db_fake, dmu_tx_t *tx) { dmu_buf_impl_t *db = (dmu_buf_impl_t *)db_fake; - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); ASSERT(tx->tx_txg != 0); ASSERT(db->db_level == 0); ASSERT(!refcount_is_zero(&db->db_holds)); @@ -1294,7 +1352,7 @@ dbuf_fill_done(dmu_buf_impl_t *db, dmu_tx_t *tx) if (db->db_state == DB_FILL) { if (db->db_level == 0 && db->db_freed_in_flight) { - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); /* we were freed while filling */ /* XXX dbuf_undirty? */ bzero(db->db.db_data, db->db.db_size); @@ -1315,7 +1373,7 @@ dbuf_assign_arcbuf(dmu_buf_impl_t *db, arc_buf_t *buf, dmu_tx_t *tx) { ASSERT(!refcount_is_zero(&db->db_holds)); ASSERT(db->db_dnode->dn_object != DMU_META_DNODE_OBJECT); - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); ASSERT(db->db_level == 0); ASSERT(DBUF_GET_BUFC_TYPE(db) == ARC_BUFC_DATA); ASSERT(buf != NULL); @@ -1338,9 +1396,11 @@ dbuf_assign_arcbuf(dmu_buf_impl_t *db, arc_buf_t *buf, dmu_tx_t *tx) (void) dbuf_dirty(db, tx); bcopy(buf->b_data, db->db.db_data, db->db.db_size); VERIFY(arc_buf_remove_ref(buf, db) == 1); + xuio_stat_wbuf_copied(); return; } + xuio_stat_wbuf_nocopy(); if (db->db_state == DB_CACHED) { dbuf_dirty_record_t *dr = db->db_last_dirty; @@ -1396,7 +1456,7 @@ dbuf_clear(dmu_buf_impl_t *db) if (db->db_state == DB_CACHED) { ASSERT(db->db.db_data != NULL); - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID) { zio_buf_free(db->db.db_data, DN_MAX_BONUSLEN); arc_space_return(DN_MAX_BONUSLEN, ARC_SPACE_OTHER); } @@ -1410,7 +1470,7 @@ dbuf_clear(dmu_buf_impl_t *db) db->db_state = DB_EVICTING; db->db_blkptr = NULL; - if (db->db_blkid != DB_BONUS_BLKID && MUTEX_HELD(&dn->dn_dbufs_mtx)) { + if (db->db_blkid != DMU_BONUS_BLKID && MUTEX_HELD(&dn->dn_dbufs_mtx)) { list_remove(&dn->dn_dbufs, db); dnode_rele(dn, db); db->db_dnode = NULL; @@ -1439,7 +1499,20 @@ dbuf_findbp(dnode_t *dn, int level, uint64_t blkid, int fail_sparse, *parentp = NULL; *bpp = NULL; - ASSERT(blkid != DB_BONUS_BLKID); + ASSERT(blkid != DMU_BONUS_BLKID); + + if (blkid == DMU_SPILL_BLKID) { + mutex_enter(&dn->dn_mtx); + if (dn->dn_have_spill && + (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR)) + *bpp = &dn->dn_phys->dn_spill; + else + *bpp = NULL; + dbuf_add_ref(dn->dn_dbuf, NULL); + *parentp = dn->dn_dbuf; + mutex_exit(&dn->dn_mtx); + return (0); + } if (dn->dn_phys->dn_nlevels == 0) nlevels = 1; @@ -1488,7 +1561,7 @@ static dmu_buf_impl_t * dbuf_create(dnode_t *dn, uint8_t level, uint64_t blkid, dmu_buf_impl_t *parent, blkptr_t *blkptr) { - objset_impl_t *os = dn->dn_objset; + objset_t *os = dn->dn_objset; dmu_buf_impl_t *db, *odb; ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock)); @@ -1512,16 +1585,20 @@ dbuf_create(dnode_t *dn, uint8_t level, uint64_t blkid, db->db_immediate_evict = 0; db->db_freed_in_flight = 0; - if (blkid == DB_BONUS_BLKID) { + if (blkid == DMU_BONUS_BLKID) { ASSERT3P(parent, ==, dn->dn_dbuf); db->db.db_size = DN_MAX_BONUSLEN - (dn->dn_nblkptr-1) * sizeof (blkptr_t); ASSERT3U(db->db.db_size, >=, dn->dn_bonuslen); - db->db.db_offset = DB_BONUS_BLKID; + db->db.db_offset = DMU_BONUS_BLKID; db->db_state = DB_UNCACHED; /* the bonus dbuf is not placed in the hash table */ arc_space_consume(sizeof (dmu_buf_impl_t), ARC_SPACE_OTHER); return (db); + } else if (blkid == DMU_SPILL_BLKID) { + db->db.db_size = (blkptr != NULL) ? + BP_GET_LSIZE(blkptr) : SPA_MINBLOCKSIZE; + db->db.db_offset = 0; } else { int blocksize = db->db_level ? 1<<dn->dn_indblkshift : dn->dn_datablksz; @@ -1589,7 +1666,7 @@ dbuf_destroy(dmu_buf_impl_t *db) { ASSERT(refcount_is_zero(&db->db_holds)); - if (db->db_blkid != DB_BONUS_BLKID) { + if (db->db_blkid != DMU_BONUS_BLKID) { /* * If this dbuf is still on the dn_dbufs list, * remove it from that list. @@ -1625,7 +1702,7 @@ dbuf_prefetch(dnode_t *dn, uint64_t blkid) dmu_buf_impl_t *db = NULL; blkptr_t *bp = NULL; - ASSERT(blkid != DB_BONUS_BLKID); + ASSERT(blkid != DMU_BONUS_BLKID); ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock)); if (dnode_block_freed(dn, blkid)) @@ -1648,22 +1725,23 @@ dbuf_prefetch(dnode_t *dn, uint64_t blkid) if (dbuf_findbp(dn, 0, blkid, TRUE, &db, &bp) == 0) { if (bp && !BP_IS_HOLE(bp)) { + int priority = dn->dn_type == DMU_OT_DDT_ZAP ? + ZIO_PRIORITY_DDT_PREFETCH : ZIO_PRIORITY_ASYNC_READ; arc_buf_t *pbuf; + dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset; uint32_t aflags = ARC_NOWAIT | ARC_PREFETCH; zbookmark_t zb; - zb.zb_objset = dn->dn_objset->os_dsl_dataset ? - dn->dn_objset->os_dsl_dataset->ds_object : 0; - zb.zb_object = dn->dn_object; - zb.zb_level = 0; - zb.zb_blkid = blkid; + + SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET, + dn->dn_object, 0, blkid); if (db) pbuf = db->db_buf; else pbuf = dn->dn_objset->os_phys_buf; - (void) arc_read(NULL, dn->dn_objset->os_spa, - bp, pbuf, NULL, NULL, ZIO_PRIORITY_ASYNC_READ, + (void) dsl_read(NULL, dn->dn_objset->os_spa, + bp, pbuf, NULL, NULL, priority, ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE, &aflags, &zb); } @@ -1682,7 +1760,7 @@ dbuf_hold_impl(dnode_t *dn, uint8_t level, uint64_t blkid, int fail_sparse, { dmu_buf_impl_t *db, *parent = NULL; - ASSERT(blkid != DB_BONUS_BLKID); + ASSERT(blkid != DMU_BONUS_BLKID); ASSERT(RW_LOCK_HELD(&dn->dn_struct_rwlock)); ASSERT3U(dn->dn_nlevels, >, level); @@ -1731,7 +1809,7 @@ top: * still referencing it from db_data, we need to make a copy * of it in case we decide we want to dirty it again in this txg. */ - if (db->db_level == 0 && db->db_blkid != DB_BONUS_BLKID && + if (db->db_level == 0 && db->db_blkid != DMU_BONUS_BLKID && dn->dn_object != DMU_META_DNODE_OBJECT && db->db_state == DB_CACHED && db->db_data_pending) { dbuf_dirty_record_t *dr = db->db_data_pending; @@ -1786,7 +1864,33 @@ dbuf_create_bonus(dnode_t *dn) ASSERT(RW_WRITE_HELD(&dn->dn_struct_rwlock)); ASSERT(dn->dn_bonus == NULL); - dn->dn_bonus = dbuf_create(dn, 0, DB_BONUS_BLKID, dn->dn_dbuf, NULL); + dn->dn_bonus = dbuf_create(dn, 0, DMU_BONUS_BLKID, dn->dn_dbuf, NULL); +} + +int +dbuf_spill_set_blksz(dmu_buf_t *db_fake, uint64_t blksz, dmu_tx_t *tx) +{ + dmu_buf_impl_t *db = (dmu_buf_impl_t *)db_fake; + if (db->db_blkid != DMU_SPILL_BLKID) + return (ENOTSUP); + if (blksz == 0) + blksz = SPA_MINBLOCKSIZE; + if (blksz > SPA_MAXBLOCKSIZE) + blksz = SPA_MAXBLOCKSIZE; + else + blksz = P2ROUNDUP(blksz, SPA_MINBLOCKSIZE); + + rw_enter(&db->db_dnode->dn_struct_rwlock, RW_WRITER); + dbuf_new_size(db, blksz, tx); + rw_exit(&db->db_dnode->dn_struct_rwlock); + + return (0); +} + +void +dbuf_rm_spill(dnode_t *dn, dmu_tx_t *tx) +{ + dbuf_free_range(dn, DMU_SPILL_BLKID, DMU_SPILL_BLKID, tx); } #pragma weak dmu_buf_add_ref = dbuf_add_ref @@ -1801,9 +1905,20 @@ dbuf_add_ref(dmu_buf_impl_t *db, void *tag) void dbuf_rele(dmu_buf_impl_t *db, void *tag) { + mutex_enter(&db->db_mtx); + dbuf_rele_and_unlock(db, tag); +} + +/* + * dbuf_rele() for an already-locked dbuf. This is necessary to allow + * db_dirtycnt and db_holds to be updated atomically. + */ +void +dbuf_rele_and_unlock(dmu_buf_impl_t *db, void *tag) +{ int64_t holds; - mutex_enter(&db->db_mtx); + ASSERT(MUTEX_HELD(&db->db_mtx)); DBUF_VERIFY(db); holds = refcount_remove(&db->db_holds, tag); @@ -1821,7 +1936,7 @@ dbuf_rele(dmu_buf_impl_t *db, void *tag) dbuf_evict_user(db); if (holds == 0) { - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID) { mutex_exit(&db->db_mtx); dnode_rele(db->db_dnode, db); } else if (db->db_buf == NULL) { @@ -1920,7 +2035,7 @@ dmu_buf_freeable(dmu_buf_t *dbuf) if (db->db_blkptr) res = dsl_dataset_block_freeable(db->db_objset->os_dsl_dataset, - db->db_blkptr->blk_birth); + db->db_blkptr, db->db_blkptr->blk_birth); return (res); } @@ -1934,6 +2049,11 @@ dbuf_check_blkptr(dnode_t *dn, dmu_buf_impl_t *db) if (db->db_blkptr != NULL) return; + if (db->db_blkid == DMU_SPILL_BLKID) { + db->db_blkptr = &dn->dn_phys->dn_spill; + BP_ZERO(db->db_blkptr); + return; + } if (db->db_level == dn->dn_phys->dn_nlevels-1) { /* * This buffer was allocated at a time when there was @@ -2011,7 +2131,7 @@ dbuf_sync_leaf(dbuf_dirty_record_t *dr, dmu_tx_t *tx) arc_buf_t **datap = &dr->dt.dl.dr_data; dmu_buf_impl_t *db = dr->dr_dbuf; dnode_t *dn = db->db_dnode; - objset_impl_t *os = dn->dn_objset; + objset_t *os = dn->dn_objset; uint64_t txg = tx->tx_txg; ASSERT(dmu_tx_is_syncing(tx)); @@ -2034,13 +2154,19 @@ dbuf_sync_leaf(dbuf_dirty_record_t *dr, dmu_tx_t *tx) } DBUF_VERIFY(db); + if (db->db_blkid == DMU_SPILL_BLKID) { + mutex_enter(&dn->dn_mtx); + dn->dn_phys->dn_flags |= DNODE_FLAG_SPILL_BLKPTR; + mutex_exit(&dn->dn_mtx); + } + /* * If this is a bonus buffer, simply copy the bonus data into the * dnode. It will be written out when the dnode is synced (and it * will be synced, since it must have been dirty for dbuf_sync to * be called). */ - if (db->db_blkid == DB_BONUS_BLKID) { + if (db->db_blkid == DMU_BONUS_BLKID) { dbuf_dirty_record_t **drp; ASSERT(*datap != NULL); @@ -2056,12 +2182,12 @@ dbuf_sync_leaf(dbuf_dirty_record_t *dr, dmu_tx_t *tx) while (*drp != dr) drp = &(*drp)->dr_next; ASSERT(dr->dr_next == NULL); + ASSERT(dr->dr_dbuf == db); *drp = dr->dr_next; kmem_free(dr, sizeof (dbuf_dirty_record_t)); ASSERT(db->db_dirtycnt > 0); db->db_dirtycnt -= 1; - mutex_exit(&db->db_mtx); - dbuf_rele(db, (void *)(uintptr_t)txg); + dbuf_rele_and_unlock(db, (void *)(uintptr_t)txg); return; } @@ -2083,44 +2209,10 @@ dbuf_sync_leaf(dbuf_dirty_record_t *dr, dmu_tx_t *tx) ASSERT(dr->dt.dl.dr_override_state != DR_NOT_OVERRIDDEN); } - /* - * If this dbuf has already been written out via an immediate write, - * just complete the write by copying over the new block pointer and - * updating the accounting via the write-completion functions. - */ - if (dr->dt.dl.dr_override_state == DR_OVERRIDDEN) { - zio_t zio_fake; - - zio_fake.io_private = &db; - zio_fake.io_error = 0; - zio_fake.io_bp = db->db_blkptr; - zio_fake.io_bp_orig = *db->db_blkptr; - zio_fake.io_txg = txg; - zio_fake.io_flags = 0; - - *db->db_blkptr = dr->dt.dl.dr_overridden_by; - dr->dt.dl.dr_override_state = DR_NOT_OVERRIDDEN; - db->db_data_pending = dr; - dr->dr_zio = &zio_fake; - mutex_exit(&db->db_mtx); - - ASSERT(!DVA_EQUAL(BP_IDENTITY(zio_fake.io_bp), - BP_IDENTITY(&zio_fake.io_bp_orig)) || - BP_IS_HOLE(zio_fake.io_bp)); - - if (BP_IS_OLDER(&zio_fake.io_bp_orig, txg)) - (void) dsl_dataset_block_kill(os->os_dsl_dataset, - &zio_fake.io_bp_orig, dn->dn_zio, tx); - - dbuf_write_ready(&zio_fake, db->db_buf, db); - dbuf_write_done(&zio_fake, db->db_buf, db); - - return; - } - if (db->db_state != DB_NOFILL && dn->dn_object != DMU_META_DNODE_OBJECT && refcount_count(&db->db_holds) > 1 && + dr->dt.dl.dr_override_state != DR_OVERRIDDEN && *datap == db->db_buf) { /* * If this buffer is currently "in use" (i.e., there @@ -2177,141 +2269,51 @@ dbuf_sync_list(list_t *list, dmu_tx_t *tx) } } -static void -dbuf_write(dbuf_dirty_record_t *dr, arc_buf_t *data, dmu_tx_t *tx) -{ - dmu_buf_impl_t *db = dr->dr_dbuf; - dnode_t *dn = db->db_dnode; - objset_impl_t *os = dn->dn_objset; - dmu_buf_impl_t *parent = db->db_parent; - uint64_t txg = tx->tx_txg; - zbookmark_t zb; - writeprops_t wp = { 0 }; - zio_t *zio; - - if (!BP_IS_HOLE(db->db_blkptr) && - (db->db_level > 0 || dn->dn_type == DMU_OT_DNODE)) { - /* - * Private object buffers are released here rather - * than in dbuf_dirty() since they are only modified - * in the syncing context and we don't want the - * overhead of making multiple copies of the data. - */ - arc_release(data, db); - } else if (db->db_state != DB_NOFILL) { - ASSERT(arc_released(data)); - /* XXX why do we need to thaw here? */ - arc_buf_thaw(data); - } - - if (parent != dn->dn_dbuf) { - ASSERT(parent && parent->db_data_pending); - ASSERT(db->db_level == parent->db_level-1); - ASSERT(arc_released(parent->db_buf)); - zio = parent->db_data_pending->dr_zio; - } else { - ASSERT(db->db_level == dn->dn_phys->dn_nlevels-1); - ASSERT3P(db->db_blkptr, ==, - &dn->dn_phys->dn_blkptr[db->db_blkid]); - zio = dn->dn_zio; - } - - ASSERT(db->db_level == 0 || data == db->db_buf); - ASSERT3U(db->db_blkptr->blk_birth, <=, txg); - ASSERT(zio); - - zb.zb_objset = os->os_dsl_dataset ? os->os_dsl_dataset->ds_object : 0; - zb.zb_object = db->db.db_object; - zb.zb_level = db->db_level; - zb.zb_blkid = db->db_blkid; - - wp.wp_type = dn->dn_type; - wp.wp_level = db->db_level; - wp.wp_copies = os->os_copies; - wp.wp_dncompress = dn->dn_compress; - wp.wp_oscompress = os->os_compress; - wp.wp_dnchecksum = dn->dn_checksum; - wp.wp_oschecksum = os->os_checksum; - - if (BP_IS_OLDER(db->db_blkptr, txg)) - (void) dsl_dataset_block_kill( - os->os_dsl_dataset, db->db_blkptr, zio, tx); - - if (db->db_state == DB_NOFILL) { - zio_prop_t zp = { 0 }; - - write_policy(os->os_spa, &wp, &zp); - dr->dr_zio = zio_write(zio, os->os_spa, - txg, db->db_blkptr, NULL, - db->db.db_size, &zp, dbuf_skip_write_ready, - dbuf_skip_write_done, db, ZIO_PRIORITY_ASYNC_WRITE, - ZIO_FLAG_MUSTSUCCEED, &zb); - } else { - dr->dr_zio = arc_write(zio, os->os_spa, &wp, - DBUF_IS_L2CACHEABLE(db), txg, db->db_blkptr, - data, dbuf_write_ready, dbuf_write_done, db, - ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); - } -} - -/* wrapper function for dbuf_write_ready bypassing ARC */ -static void -dbuf_skip_write_ready(zio_t *zio) -{ - blkptr_t *bp = zio->io_bp; - - if (!BP_IS_GANG(bp)) - zio_skip_write(zio); - - dbuf_write_ready(zio, NULL, zio->io_private); -} - -/* wrapper function for dbuf_write_done bypassing ARC */ -static void -dbuf_skip_write_done(zio_t *zio) -{ - dbuf_write_done(zio, NULL, zio->io_private); -} - /* ARGSUSED */ static void dbuf_write_ready(zio_t *zio, arc_buf_t *buf, void *vdb) { dmu_buf_impl_t *db = vdb; - dnode_t *dn = db->db_dnode; - objset_impl_t *os = dn->dn_objset; blkptr_t *bp = zio->io_bp; blkptr_t *bp_orig = &zio->io_bp_orig; + dnode_t *dn = db->db_dnode; + spa_t *spa = zio->io_spa; + int64_t delta; uint64_t fill = 0; - int old_size, new_size, i; + int i; ASSERT(db->db_blkptr == bp); - dprintf_dbuf_bp(db, bp_orig, "bp_orig: %s", ""); - - old_size = bp_get_dasize(os->os_spa, bp_orig); - new_size = bp_get_dasize(os->os_spa, bp); - - dnode_diduse_space(dn, new_size - old_size); + delta = bp_get_dsize_sync(spa, bp) - bp_get_dsize_sync(spa, bp_orig); + dnode_diduse_space(dn, delta - zio->io_prev_space_delta); + zio->io_prev_space_delta = delta; if (BP_IS_HOLE(bp)) { - dsl_dataset_t *ds = os->os_dsl_dataset; - dmu_tx_t *tx = os->os_synctx; - - if (bp_orig->blk_birth == tx->tx_txg) - (void) dsl_dataset_block_kill(ds, bp_orig, zio, tx); - ASSERT3U(bp->blk_fill, ==, 0); + ASSERT(bp->blk_fill == 0); return; } - ASSERT(BP_GET_TYPE(bp) == dn->dn_type); + ASSERT((db->db_blkid != DMU_SPILL_BLKID && + BP_GET_TYPE(bp) == dn->dn_type) || + (db->db_blkid == DMU_SPILL_BLKID && + BP_GET_TYPE(bp) == dn->dn_bonustype)); ASSERT(BP_GET_LEVEL(bp) == db->db_level); mutex_enter(&db->db_mtx); +#ifdef ZFS_DEBUG + if (db->db_blkid == DMU_SPILL_BLKID) { + dnode_t *dn = db->db_dnode; + ASSERT(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR); + ASSERT(!(BP_IS_HOLE(db->db_blkptr)) && + db->db_blkptr == &dn->dn_phys->dn_spill); + } +#endif + if (db->db_level == 0) { mutex_enter(&dn->dn_mtx); - if (db->db_blkid > dn->dn_phys->dn_maxblkid) + if (db->db_blkid > dn->dn_phys->dn_maxblkid && + db->db_blkid != DMU_SPILL_BLKID) dn->dn_phys->dn_maxblkid = db->db_blkid; mutex_exit(&dn->dn_mtx); @@ -2331,9 +2333,6 @@ dbuf_write_ready(zio_t *zio, arc_buf_t *buf, void *vdb) for (i = db->db.db_size >> SPA_BLKPTRSHIFT; i > 0; i--, ibp++) { if (BP_IS_HOLE(ibp)) continue; - ASSERT3U(BP_GET_LSIZE(ibp), ==, - db->db_level == 1 ? dn->dn_datablksz : - (1<<dn->dn_phys->dn_indblkshift)); fill += ibp->blk_fill; } } @@ -2341,17 +2340,6 @@ dbuf_write_ready(zio_t *zio, arc_buf_t *buf, void *vdb) bp->blk_fill = fill; mutex_exit(&db->db_mtx); - - if (zio->io_flags & ZIO_FLAG_IO_REWRITE) { - ASSERT(DVA_EQUAL(BP_IDENTITY(bp), BP_IDENTITY(bp_orig))); - } else { - dsl_dataset_t *ds = os->os_dsl_dataset; - dmu_tx_t *tx = os->os_synctx; - - if (bp_orig->blk_birth == tx->tx_txg) - (void) dsl_dataset_block_kill(ds, bp_orig, zio, tx); - dsl_dataset_block_born(ds, bp, tx); - } } /* ARGSUSED */ @@ -2359,37 +2347,59 @@ static void dbuf_write_done(zio_t *zio, arc_buf_t *buf, void *vdb) { dmu_buf_impl_t *db = vdb; + blkptr_t *bp = zio->io_bp; + blkptr_t *bp_orig = &zio->io_bp_orig; + dnode_t *dn = db->db_dnode; + objset_t *os = dn->dn_objset; uint64_t txg = zio->io_txg; dbuf_dirty_record_t **drp, *dr; ASSERT3U(zio->io_error, ==, 0); + ASSERT(db->db_blkptr == bp); + + if (zio->io_flags & ZIO_FLAG_IO_REWRITE) { + ASSERT(BP_EQUAL(bp, bp_orig)); + } else { + dsl_dataset_t *ds = os->os_dsl_dataset; + dmu_tx_t *tx = os->os_synctx; + + (void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE); + dsl_dataset_block_born(ds, bp, tx); + } mutex_enter(&db->db_mtx); + DBUF_VERIFY(db); + drp = &db->db_last_dirty; while ((dr = *drp) != db->db_data_pending) drp = &dr->dr_next; ASSERT(!list_link_active(&dr->dr_dirty_node)); ASSERT(dr->dr_txg == txg); + ASSERT(dr->dr_dbuf == db); ASSERT(dr->dr_next == NULL); *drp = dr->dr_next; +#ifdef ZFS_DEBUG + if (db->db_blkid == DMU_SPILL_BLKID) { + dnode_t *dn = db->db_dnode; + ASSERT(dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR); + ASSERT(!(BP_IS_HOLE(db->db_blkptr)) && + db->db_blkptr == &dn->dn_phys->dn_spill); + } +#endif + if (db->db_level == 0) { - ASSERT(db->db_blkid != DB_BONUS_BLKID); + ASSERT(db->db_blkid != DMU_BONUS_BLKID); ASSERT(dr->dt.dl.dr_override_state == DR_NOT_OVERRIDDEN); - if (db->db_state != DB_NOFILL) { if (dr->dt.dl.dr_data != db->db_buf) VERIFY(arc_buf_remove_ref(dr->dt.dl.dr_data, db) == 1); - else if (!BP_IS_HOLE(db->db_blkptr)) + else if (!arc_released(db->db_buf)) arc_set_callback(db->db_buf, dbuf_do_evict, db); - else - ASSERT(arc_released(db->db_buf)); } } else { - dnode_t *dn = db->db_dnode; - ASSERT(list_head(&dr->dt.di.dr_children) == NULL); ASSERT3U(db->db.db_size, ==, 1<<dn->dn_phys->dn_indblkshift); if (!BP_IS_HOLE(db->db_blkptr)) { @@ -2410,9 +2420,129 @@ dbuf_write_done(zio_t *zio, arc_buf_t *buf, void *vdb) ASSERT(db->db_dirtycnt > 0); db->db_dirtycnt -= 1; db->db_data_pending = NULL; + dbuf_rele_and_unlock(db, (void *)(uintptr_t)txg); +} + +static void +dbuf_write_nofill_ready(zio_t *zio) +{ + dbuf_write_ready(zio, NULL, zio->io_private); +} + +static void +dbuf_write_nofill_done(zio_t *zio) +{ + dbuf_write_done(zio, NULL, zio->io_private); +} + +static void +dbuf_write_override_ready(zio_t *zio) +{ + dbuf_dirty_record_t *dr = zio->io_private; + dmu_buf_impl_t *db = dr->dr_dbuf; + + dbuf_write_ready(zio, NULL, db); +} + +static void +dbuf_write_override_done(zio_t *zio) +{ + dbuf_dirty_record_t *dr = zio->io_private; + dmu_buf_impl_t *db = dr->dr_dbuf; + blkptr_t *obp = &dr->dt.dl.dr_overridden_by; + + mutex_enter(&db->db_mtx); + if (!BP_EQUAL(zio->io_bp, obp)) { + if (!BP_IS_HOLE(obp)) + dsl_free(spa_get_dsl(zio->io_spa), zio->io_txg, obp); + arc_release(dr->dt.dl.dr_data, db); + } mutex_exit(&db->db_mtx); - dprintf_dbuf_bp(db, zio->io_bp, "bp: %s", ""); + dbuf_write_done(zio, NULL, db); +} + +static void +dbuf_write(dbuf_dirty_record_t *dr, arc_buf_t *data, dmu_tx_t *tx) +{ + dmu_buf_impl_t *db = dr->dr_dbuf; + dnode_t *dn = db->db_dnode; + objset_t *os = dn->dn_objset; + dmu_buf_impl_t *parent = db->db_parent; + uint64_t txg = tx->tx_txg; + zbookmark_t zb; + zio_prop_t zp; + zio_t *zio; + int wp_flag = 0; - dbuf_rele(db, (void *)(uintptr_t)txg); + if (db->db_state != DB_NOFILL) { + if (db->db_level > 0 || dn->dn_type == DMU_OT_DNODE) { + /* + * Private object buffers are released here rather + * than in dbuf_dirty() since they are only modified + * in the syncing context and we don't want the + * overhead of making multiple copies of the data. + */ + if (BP_IS_HOLE(db->db_blkptr)) { + arc_buf_thaw(data); + } else { + dbuf_release_bp(db); + } + } + } + + if (parent != dn->dn_dbuf) { + ASSERT(parent && parent->db_data_pending); + ASSERT(db->db_level == parent->db_level-1); + ASSERT(arc_released(parent->db_buf)); + zio = parent->db_data_pending->dr_zio; + } else { + ASSERT((db->db_level == dn->dn_phys->dn_nlevels-1 && + db->db_blkid != DMU_SPILL_BLKID) || + (db->db_blkid == DMU_SPILL_BLKID && db->db_level == 0)); + if (db->db_blkid != DMU_SPILL_BLKID) + ASSERT3P(db->db_blkptr, ==, + &dn->dn_phys->dn_blkptr[db->db_blkid]); + zio = dn->dn_zio; + } + + ASSERT(db->db_level == 0 || data == db->db_buf); + ASSERT3U(db->db_blkptr->blk_birth, <=, txg); + ASSERT(zio); + + SET_BOOKMARK(&zb, os->os_dsl_dataset ? + os->os_dsl_dataset->ds_object : DMU_META_OBJSET, + db->db.db_object, db->db_level, db->db_blkid); + + if (db->db_blkid == DMU_SPILL_BLKID) + wp_flag = WP_SPILL; + wp_flag |= (db->db_state == DB_NOFILL) ? WP_NOFILL : 0; + + dmu_write_policy(os, dn, db->db_level, wp_flag, &zp); + + if (db->db_level == 0 && dr->dt.dl.dr_override_state == DR_OVERRIDDEN) { + ASSERT(db->db_state != DB_NOFILL); + dr->dr_zio = zio_write(zio, os->os_spa, txg, + db->db_blkptr, data->b_data, arc_buf_size(data), &zp, + dbuf_write_override_ready, dbuf_write_override_done, dr, + ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); + mutex_enter(&db->db_mtx); + dr->dt.dl.dr_override_state = DR_NOT_OVERRIDDEN; + zio_write_override(dr->dr_zio, &dr->dt.dl.dr_overridden_by, + dr->dt.dl.dr_copies); + mutex_exit(&db->db_mtx); + } else if (db->db_state == DB_NOFILL) { + ASSERT(zp.zp_checksum == ZIO_CHECKSUM_OFF); + dr->dr_zio = zio_write(zio, os->os_spa, txg, + db->db_blkptr, NULL, db->db.db_size, &zp, + dbuf_write_nofill_ready, dbuf_write_nofill_done, db, + ZIO_PRIORITY_ASYNC_WRITE, + ZIO_FLAG_MUSTSUCCEED | ZIO_FLAG_NODATA, &zb); + } else { + ASSERT(arc_released(data)); + dr->dr_zio = arc_write(zio, os->os_spa, txg, + db->db_blkptr, data, DBUF_IS_L2CACHEABLE(db), &zp, + dbuf_write_ready, dbuf_write_done, db, + ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); + } } diff --git a/module/zfs/ddt.c b/module/zfs/ddt.c new file mode 100644 index 000000000..926b4df9a --- /dev/null +++ b/module/zfs/ddt.c @@ -0,0 +1,1140 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/zfs_context.h> +#include <sys/spa.h> +#include <sys/spa_impl.h> +#include <sys/zio.h> +#include <sys/ddt.h> +#include <sys/zap.h> +#include <sys/dmu_tx.h> +#include <sys/arc.h> +#include <sys/dsl_pool.h> +#include <sys/zio_checksum.h> +#include <sys/zio_compress.h> +#include <sys/dsl_scan.h> + +static const ddt_ops_t *ddt_ops[DDT_TYPES] = { + &ddt_zap_ops, +}; + +static const char *ddt_class_name[DDT_CLASSES] = { + "ditto", + "duplicate", + "unique", +}; + +static void +ddt_object_create(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + dmu_tx_t *tx) +{ + spa_t *spa = ddt->ddt_spa; + objset_t *os = ddt->ddt_os; + uint64_t *objectp = &ddt->ddt_object[type][class]; + boolean_t prehash = zio_checksum_table[ddt->ddt_checksum].ci_dedup; + char name[DDT_NAMELEN]; + + ddt_object_name(ddt, type, class, name); + + ASSERT(*objectp == 0); + VERIFY(ddt_ops[type]->ddt_op_create(os, objectp, tx, prehash) == 0); + ASSERT(*objectp != 0); + + VERIFY(zap_add(os, DMU_POOL_DIRECTORY_OBJECT, name, + sizeof (uint64_t), 1, objectp, tx) == 0); + + VERIFY(zap_add(os, spa->spa_ddt_stat_object, name, + sizeof (uint64_t), sizeof (ddt_histogram_t) / sizeof (uint64_t), + &ddt->ddt_histogram[type][class], tx) == 0); +} + +static void +ddt_object_destroy(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + dmu_tx_t *tx) +{ + spa_t *spa = ddt->ddt_spa; + objset_t *os = ddt->ddt_os; + uint64_t *objectp = &ddt->ddt_object[type][class]; + char name[DDT_NAMELEN]; + + ddt_object_name(ddt, type, class, name); + + ASSERT(*objectp != 0); + ASSERT(ddt_object_count(ddt, type, class) == 0); + ASSERT(ddt_histogram_empty(&ddt->ddt_histogram[type][class])); + VERIFY(zap_remove(os, DMU_POOL_DIRECTORY_OBJECT, name, tx) == 0); + VERIFY(zap_remove(os, spa->spa_ddt_stat_object, name, tx) == 0); + VERIFY(ddt_ops[type]->ddt_op_destroy(os, *objectp, tx) == 0); + bzero(&ddt->ddt_object_stats[type][class], sizeof (ddt_object_t)); + + *objectp = 0; +} + +static int +ddt_object_load(ddt_t *ddt, enum ddt_type type, enum ddt_class class) +{ + ddt_object_t *ddo = &ddt->ddt_object_stats[type][class]; + dmu_object_info_t doi; + char name[DDT_NAMELEN]; + int error; + + ddt_object_name(ddt, type, class, name); + + error = zap_lookup(ddt->ddt_os, DMU_POOL_DIRECTORY_OBJECT, name, + sizeof (uint64_t), 1, &ddt->ddt_object[type][class]); + + if (error) + return (error); + + error = zap_lookup(ddt->ddt_os, ddt->ddt_spa->spa_ddt_stat_object, name, + sizeof (uint64_t), sizeof (ddt_histogram_t) / sizeof (uint64_t), + &ddt->ddt_histogram[type][class]); + + /* + * Seed the cached statistics. + */ + VERIFY(ddt_object_info(ddt, type, class, &doi) == 0); + + ddo->ddo_count = ddt_object_count(ddt, type, class); + ddo->ddo_dspace = doi.doi_physical_blocks_512 << 9; + ddo->ddo_mspace = doi.doi_fill_count * doi.doi_data_block_size; + + ASSERT(error == 0); + return (error); +} + +static void +ddt_object_sync(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + dmu_tx_t *tx) +{ + ddt_object_t *ddo = &ddt->ddt_object_stats[type][class]; + dmu_object_info_t doi; + char name[DDT_NAMELEN]; + + ddt_object_name(ddt, type, class, name); + + VERIFY(zap_update(ddt->ddt_os, ddt->ddt_spa->spa_ddt_stat_object, name, + sizeof (uint64_t), sizeof (ddt_histogram_t) / sizeof (uint64_t), + &ddt->ddt_histogram[type][class], tx) == 0); + + /* + * Cache DDT statistics; this is the only time they'll change. + */ + VERIFY(ddt_object_info(ddt, type, class, &doi) == 0); + + ddo->ddo_count = ddt_object_count(ddt, type, class); + ddo->ddo_dspace = doi.doi_physical_blocks_512 << 9; + ddo->ddo_mspace = doi.doi_fill_count * doi.doi_data_block_size; +} + +static int +ddt_object_lookup(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + ddt_entry_t *dde) +{ + if (!ddt_object_exists(ddt, type, class)) + return (ENOENT); + + return (ddt_ops[type]->ddt_op_lookup(ddt->ddt_os, + ddt->ddt_object[type][class], dde)); +} + +static void +ddt_object_prefetch(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + ddt_entry_t *dde) +{ + if (!ddt_object_exists(ddt, type, class)) + return; + + ddt_ops[type]->ddt_op_prefetch(ddt->ddt_os, + ddt->ddt_object[type][class], dde); +} + +int +ddt_object_update(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + ddt_entry_t *dde, dmu_tx_t *tx) +{ + ASSERT(ddt_object_exists(ddt, type, class)); + + return (ddt_ops[type]->ddt_op_update(ddt->ddt_os, + ddt->ddt_object[type][class], dde, tx)); +} + +static int +ddt_object_remove(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + ddt_entry_t *dde, dmu_tx_t *tx) +{ + ASSERT(ddt_object_exists(ddt, type, class)); + + return (ddt_ops[type]->ddt_op_remove(ddt->ddt_os, + ddt->ddt_object[type][class], dde, tx)); +} + +int +ddt_object_walk(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + uint64_t *walk, ddt_entry_t *dde) +{ + ASSERT(ddt_object_exists(ddt, type, class)); + + return (ddt_ops[type]->ddt_op_walk(ddt->ddt_os, + ddt->ddt_object[type][class], dde, walk)); +} + +uint64_t +ddt_object_count(ddt_t *ddt, enum ddt_type type, enum ddt_class class) +{ + ASSERT(ddt_object_exists(ddt, type, class)); + + return (ddt_ops[type]->ddt_op_count(ddt->ddt_os, + ddt->ddt_object[type][class])); +} + +int +ddt_object_info(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + dmu_object_info_t *doi) +{ + if (!ddt_object_exists(ddt, type, class)) + return (ENOENT); + + return (dmu_object_info(ddt->ddt_os, ddt->ddt_object[type][class], + doi)); +} + +boolean_t +ddt_object_exists(ddt_t *ddt, enum ddt_type type, enum ddt_class class) +{ + return (!!ddt->ddt_object[type][class]); +} + +void +ddt_object_name(ddt_t *ddt, enum ddt_type type, enum ddt_class class, + char *name) +{ + (void) sprintf(name, DMU_POOL_DDT, + zio_checksum_table[ddt->ddt_checksum].ci_name, + ddt_ops[type]->ddt_op_name, ddt_class_name[class]); +} + +void +ddt_bp_fill(const ddt_phys_t *ddp, blkptr_t *bp, uint64_t txg) +{ + ASSERT(txg != 0); + + for (int d = 0; d < SPA_DVAS_PER_BP; d++) + bp->blk_dva[d] = ddp->ddp_dva[d]; + BP_SET_BIRTH(bp, txg, ddp->ddp_phys_birth); +} + +void +ddt_bp_create(enum zio_checksum checksum, + const ddt_key_t *ddk, const ddt_phys_t *ddp, blkptr_t *bp) +{ + BP_ZERO(bp); + + if (ddp != NULL) + ddt_bp_fill(ddp, bp, ddp->ddp_phys_birth); + + bp->blk_cksum = ddk->ddk_cksum; + bp->blk_fill = 1; + + BP_SET_LSIZE(bp, DDK_GET_LSIZE(ddk)); + BP_SET_PSIZE(bp, DDK_GET_PSIZE(ddk)); + BP_SET_COMPRESS(bp, DDK_GET_COMPRESS(ddk)); + BP_SET_CHECKSUM(bp, checksum); + BP_SET_TYPE(bp, DMU_OT_DEDUP); + BP_SET_LEVEL(bp, 0); + BP_SET_DEDUP(bp, 0); + BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); +} + +void +ddt_key_fill(ddt_key_t *ddk, const blkptr_t *bp) +{ + ddk->ddk_cksum = bp->blk_cksum; + ddk->ddk_prop = 0; + + DDK_SET_LSIZE(ddk, BP_GET_LSIZE(bp)); + DDK_SET_PSIZE(ddk, BP_GET_PSIZE(bp)); + DDK_SET_COMPRESS(ddk, BP_GET_COMPRESS(bp)); +} + +void +ddt_phys_fill(ddt_phys_t *ddp, const blkptr_t *bp) +{ + ASSERT(ddp->ddp_phys_birth == 0); + + for (int d = 0; d < SPA_DVAS_PER_BP; d++) + ddp->ddp_dva[d] = bp->blk_dva[d]; + ddp->ddp_phys_birth = BP_PHYSICAL_BIRTH(bp); +} + +void +ddt_phys_clear(ddt_phys_t *ddp) +{ + bzero(ddp, sizeof (*ddp)); +} + +void +ddt_phys_addref(ddt_phys_t *ddp) +{ + ddp->ddp_refcnt++; +} + +void +ddt_phys_decref(ddt_phys_t *ddp) +{ + ASSERT((int64_t)ddp->ddp_refcnt > 0); + ddp->ddp_refcnt--; +} + +void +ddt_phys_free(ddt_t *ddt, ddt_key_t *ddk, ddt_phys_t *ddp, uint64_t txg) +{ + blkptr_t blk; + + ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); + ddt_phys_clear(ddp); + zio_free(ddt->ddt_spa, txg, &blk); +} + +ddt_phys_t * +ddt_phys_select(const ddt_entry_t *dde, const blkptr_t *bp) +{ + ddt_phys_t *ddp = (ddt_phys_t *)dde->dde_phys; + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { + if (DVA_EQUAL(BP_IDENTITY(bp), &ddp->ddp_dva[0]) && + BP_PHYSICAL_BIRTH(bp) == ddp->ddp_phys_birth) + return (ddp); + } + return (NULL); +} + +uint64_t +ddt_phys_total_refcnt(const ddt_entry_t *dde) +{ + uint64_t refcnt = 0; + + for (int p = DDT_PHYS_SINGLE; p <= DDT_PHYS_TRIPLE; p++) + refcnt += dde->dde_phys[p].ddp_refcnt; + + return (refcnt); +} + +static void +ddt_stat_generate(ddt_t *ddt, ddt_entry_t *dde, ddt_stat_t *dds) +{ + spa_t *spa = ddt->ddt_spa; + ddt_phys_t *ddp = dde->dde_phys; + ddt_key_t *ddk = &dde->dde_key; + uint64_t lsize = DDK_GET_LSIZE(ddk); + uint64_t psize = DDK_GET_PSIZE(ddk); + + bzero(dds, sizeof (*dds)); + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { + uint64_t dsize = 0; + uint64_t refcnt = ddp->ddp_refcnt; + + if (ddp->ddp_phys_birth == 0) + continue; + + for (int d = 0; d < SPA_DVAS_PER_BP; d++) + dsize += dva_get_dsize_sync(spa, &ddp->ddp_dva[d]); + + dds->dds_blocks += 1; + dds->dds_lsize += lsize; + dds->dds_psize += psize; + dds->dds_dsize += dsize; + + dds->dds_ref_blocks += refcnt; + dds->dds_ref_lsize += lsize * refcnt; + dds->dds_ref_psize += psize * refcnt; + dds->dds_ref_dsize += dsize * refcnt; + } +} + +void +ddt_stat_add(ddt_stat_t *dst, const ddt_stat_t *src, uint64_t neg) +{ + const uint64_t *s = (const uint64_t *)src; + uint64_t *d = (uint64_t *)dst; + uint64_t *d_end = (uint64_t *)(dst + 1); + + ASSERT(neg == 0 || neg == -1ULL); /* add or subtract */ + + while (d < d_end) + *d++ += (*s++ ^ neg) - neg; +} + +static void +ddt_stat_update(ddt_t *ddt, ddt_entry_t *dde, uint64_t neg) +{ + ddt_stat_t dds; + ddt_histogram_t *ddh; + int bucket; + + ddt_stat_generate(ddt, dde, &dds); + + bucket = highbit(dds.dds_ref_blocks) - 1; + ASSERT(bucket >= 0); + + ddh = &ddt->ddt_histogram[dde->dde_type][dde->dde_class]; + + ddt_stat_add(&ddh->ddh_stat[bucket], &dds, neg); +} + +void +ddt_histogram_add(ddt_histogram_t *dst, const ddt_histogram_t *src) +{ + for (int h = 0; h < 64; h++) + ddt_stat_add(&dst->ddh_stat[h], &src->ddh_stat[h], 0); +} + +void +ddt_histogram_stat(ddt_stat_t *dds, const ddt_histogram_t *ddh) +{ + bzero(dds, sizeof (*dds)); + + for (int h = 0; h < 64; h++) + ddt_stat_add(dds, &ddh->ddh_stat[h], 0); +} + +boolean_t +ddt_histogram_empty(const ddt_histogram_t *ddh) +{ + const uint64_t *s = (const uint64_t *)ddh; + const uint64_t *s_end = (const uint64_t *)(ddh + 1); + + while (s < s_end) + if (*s++ != 0) + return (B_FALSE); + + return (B_TRUE); +} + +void +ddt_get_dedup_object_stats(spa_t *spa, ddt_object_t *ddo_total) +{ + /* Sum the statistics we cached in ddt_object_sync(). */ + for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { + ddt_t *ddt = spa->spa_ddt[c]; + for (enum ddt_type type = 0; type < DDT_TYPES; type++) { + for (enum ddt_class class = 0; class < DDT_CLASSES; + class++) { + ddt_object_t *ddo = + &ddt->ddt_object_stats[type][class]; + ddo_total->ddo_count += ddo->ddo_count; + ddo_total->ddo_dspace += ddo->ddo_dspace; + ddo_total->ddo_mspace += ddo->ddo_mspace; + } + } + } + + /* ... and compute the averages. */ + if (ddo_total->ddo_count != 0) { + ddo_total->ddo_dspace /= ddo_total->ddo_count; + ddo_total->ddo_mspace /= ddo_total->ddo_count; + } else { + ASSERT(ddo_total->ddo_dspace == 0); + ASSERT(ddo_total->ddo_mspace == 0); + } +} + +void +ddt_get_dedup_histogram(spa_t *spa, ddt_histogram_t *ddh) +{ + for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { + ddt_t *ddt = spa->spa_ddt[c]; + for (enum ddt_type type = 0; type < DDT_TYPES; type++) { + for (enum ddt_class class = 0; class < DDT_CLASSES; + class++) { + ddt_histogram_add(ddh, + &ddt->ddt_histogram_cache[type][class]); + } + } + } +} + +void +ddt_get_dedup_stats(spa_t *spa, ddt_stat_t *dds_total) +{ + ddt_histogram_t *ddh_total; + + ddh_total = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP); + ddt_get_dedup_histogram(spa, ddh_total); + ddt_histogram_stat(dds_total, ddh_total); + kmem_free(ddh_total, sizeof (ddt_histogram_t)); +} + +uint64_t +ddt_get_dedup_dspace(spa_t *spa) +{ + ddt_stat_t dds_total = { 0 }; + + ddt_get_dedup_stats(spa, &dds_total); + return (dds_total.dds_ref_dsize - dds_total.dds_dsize); +} + +uint64_t +ddt_get_pool_dedup_ratio(spa_t *spa) +{ + ddt_stat_t dds_total = { 0 }; + + ddt_get_dedup_stats(spa, &dds_total); + if (dds_total.dds_dsize == 0) + return (100); + + return (dds_total.dds_ref_dsize * 100 / dds_total.dds_dsize); +} + +int +ddt_ditto_copies_needed(ddt_t *ddt, ddt_entry_t *dde, ddt_phys_t *ddp_willref) +{ + spa_t *spa = ddt->ddt_spa; + uint64_t total_refcnt = 0; + uint64_t ditto = spa->spa_dedup_ditto; + int total_copies = 0; + int desired_copies = 0; + + for (int p = DDT_PHYS_SINGLE; p <= DDT_PHYS_TRIPLE; p++) { + ddt_phys_t *ddp = &dde->dde_phys[p]; + zio_t *zio = dde->dde_lead_zio[p]; + uint64_t refcnt = ddp->ddp_refcnt; /* committed refs */ + if (zio != NULL) + refcnt += zio->io_parent_count; /* pending refs */ + if (ddp == ddp_willref) + refcnt++; /* caller's ref */ + if (refcnt != 0) { + total_refcnt += refcnt; + total_copies += p; + } + } + + if (ditto == 0 || ditto > UINT32_MAX) + ditto = UINT32_MAX; + + if (total_refcnt >= 1) + desired_copies++; + if (total_refcnt >= ditto) + desired_copies++; + if (total_refcnt >= ditto * ditto) + desired_copies++; + + return (MAX(desired_copies, total_copies) - total_copies); +} + +int +ddt_ditto_copies_present(ddt_entry_t *dde) +{ + ddt_phys_t *ddp = &dde->dde_phys[DDT_PHYS_DITTO]; + dva_t *dva = ddp->ddp_dva; + int copies = 0 - DVA_GET_GANG(dva); + + for (int d = 0; d < SPA_DVAS_PER_BP; d++, dva++) + if (DVA_IS_VALID(dva)) + copies++; + + ASSERT(copies >= 0 && copies < SPA_DVAS_PER_BP); + + return (copies); +} + +size_t +ddt_compress(void *src, uchar_t *dst, size_t s_len, size_t d_len) +{ + uchar_t *version = dst++; + int cpfunc = ZIO_COMPRESS_ZLE; + zio_compress_info_t *ci = &zio_compress_table[cpfunc]; + size_t c_len; + + ASSERT(d_len >= s_len + 1); /* no compression plus version byte */ + + c_len = ci->ci_compress(src, dst, s_len, d_len - 1, ci->ci_level); + + if (c_len == s_len) { + cpfunc = ZIO_COMPRESS_OFF; + bcopy(src, dst, s_len); + } + + *version = (ZFS_HOST_BYTEORDER & DDT_COMPRESS_BYTEORDER_MASK) | cpfunc; + + return (c_len + 1); +} + +void +ddt_decompress(uchar_t *src, void *dst, size_t s_len, size_t d_len) +{ + uchar_t version = *src++; + int cpfunc = version & DDT_COMPRESS_FUNCTION_MASK; + zio_compress_info_t *ci = &zio_compress_table[cpfunc]; + + if (ci->ci_decompress != NULL) + (void) ci->ci_decompress(src, dst, s_len, d_len, ci->ci_level); + else + bcopy(src, dst, d_len); + + if ((version ^ ZFS_HOST_BYTEORDER) & DDT_COMPRESS_BYTEORDER_MASK) + byteswap_uint64_array(dst, d_len); +} + +ddt_t * +ddt_select_by_checksum(spa_t *spa, enum zio_checksum c) +{ + return (spa->spa_ddt[c]); +} + +ddt_t * +ddt_select(spa_t *spa, const blkptr_t *bp) +{ + return (spa->spa_ddt[BP_GET_CHECKSUM(bp)]); +} + +void +ddt_enter(ddt_t *ddt) +{ + mutex_enter(&ddt->ddt_lock); +} + +void +ddt_exit(ddt_t *ddt) +{ + mutex_exit(&ddt->ddt_lock); +} + +static ddt_entry_t * +ddt_alloc(const ddt_key_t *ddk) +{ + ddt_entry_t *dde; + + dde = kmem_zalloc(sizeof (ddt_entry_t), KM_SLEEP); + cv_init(&dde->dde_cv, NULL, CV_DEFAULT, NULL); + + dde->dde_key = *ddk; + + return (dde); +} + +static void +ddt_free(ddt_entry_t *dde) +{ + ASSERT(!dde->dde_loading); + + for (int p = 0; p < DDT_PHYS_TYPES; p++) + ASSERT(dde->dde_lead_zio[p] == NULL); + + if (dde->dde_repair_data != NULL) + zio_buf_free(dde->dde_repair_data, + DDK_GET_PSIZE(&dde->dde_key)); + + cv_destroy(&dde->dde_cv); + kmem_free(dde, sizeof (*dde)); +} + +void +ddt_remove(ddt_t *ddt, ddt_entry_t *dde) +{ + ASSERT(MUTEX_HELD(&ddt->ddt_lock)); + + avl_remove(&ddt->ddt_tree, dde); + ddt_free(dde); +} + +ddt_entry_t * +ddt_lookup(ddt_t *ddt, const blkptr_t *bp, boolean_t add) +{ + ddt_entry_t *dde, dde_search; + enum ddt_type type; + enum ddt_class class; + avl_index_t where; + int error; + + ASSERT(MUTEX_HELD(&ddt->ddt_lock)); + + ddt_key_fill(&dde_search.dde_key, bp); + + dde = avl_find(&ddt->ddt_tree, &dde_search, &where); + if (dde == NULL) { + if (!add) + return (NULL); + dde = ddt_alloc(&dde_search.dde_key); + avl_insert(&ddt->ddt_tree, dde, where); + } + + while (dde->dde_loading) + cv_wait(&dde->dde_cv, &ddt->ddt_lock); + + if (dde->dde_loaded) + return (dde); + + dde->dde_loading = B_TRUE; + + ddt_exit(ddt); + + error = ENOENT; + + for (type = 0; type < DDT_TYPES; type++) { + for (class = 0; class < DDT_CLASSES; class++) { + error = ddt_object_lookup(ddt, type, class, dde); + if (error != ENOENT) + break; + } + if (error != ENOENT) + break; + } + + ASSERT(error == 0 || error == ENOENT); + + ddt_enter(ddt); + + ASSERT(dde->dde_loaded == B_FALSE); + ASSERT(dde->dde_loading == B_TRUE); + + dde->dde_type = type; /* will be DDT_TYPES if no entry found */ + dde->dde_class = class; /* will be DDT_CLASSES if no entry found */ + dde->dde_loaded = B_TRUE; + dde->dde_loading = B_FALSE; + + if (error == 0) + ddt_stat_update(ddt, dde, -1ULL); + + cv_broadcast(&dde->dde_cv); + + return (dde); +} + +void +ddt_prefetch(spa_t *spa, const blkptr_t *bp) +{ + ddt_t *ddt; + ddt_entry_t dde; + + if (!BP_GET_DEDUP(bp)) + return; + + /* + * We remove the DDT once it's empty and only prefetch dedup blocks + * when there are entries in the DDT. Thus no locking is required + * as the DDT can't disappear on us. + */ + ddt = ddt_select(spa, bp); + ddt_key_fill(&dde.dde_key, bp); + + for (enum ddt_type type = 0; type < DDT_TYPES; type++) { + for (enum ddt_class class = 0; class < DDT_CLASSES; class++) { + ddt_object_prefetch(ddt, type, class, &dde); + } + } +} + +int +ddt_entry_compare(const void *x1, const void *x2) +{ + const ddt_entry_t *dde1 = x1; + const ddt_entry_t *dde2 = x2; + const uint64_t *u1 = (const uint64_t *)&dde1->dde_key; + const uint64_t *u2 = (const uint64_t *)&dde2->dde_key; + + for (int i = 0; i < DDT_KEY_WORDS; i++) { + if (u1[i] < u2[i]) + return (-1); + if (u1[i] > u2[i]) + return (1); + } + + return (0); +} + +static ddt_t * +ddt_table_alloc(spa_t *spa, enum zio_checksum c) +{ + ddt_t *ddt; + + ddt = kmem_zalloc(sizeof (*ddt), KM_SLEEP); + + mutex_init(&ddt->ddt_lock, NULL, MUTEX_DEFAULT, NULL); + avl_create(&ddt->ddt_tree, ddt_entry_compare, + sizeof (ddt_entry_t), offsetof(ddt_entry_t, dde_node)); + avl_create(&ddt->ddt_repair_tree, ddt_entry_compare, + sizeof (ddt_entry_t), offsetof(ddt_entry_t, dde_node)); + ddt->ddt_checksum = c; + ddt->ddt_spa = spa; + ddt->ddt_os = spa->spa_meta_objset; + + return (ddt); +} + +static void +ddt_table_free(ddt_t *ddt) +{ + ASSERT(avl_numnodes(&ddt->ddt_tree) == 0); + ASSERT(avl_numnodes(&ddt->ddt_repair_tree) == 0); + avl_destroy(&ddt->ddt_tree); + avl_destroy(&ddt->ddt_repair_tree); + mutex_destroy(&ddt->ddt_lock); + kmem_free(ddt, sizeof (*ddt)); +} + +void +ddt_create(spa_t *spa) +{ + spa->spa_dedup_checksum = ZIO_DEDUPCHECKSUM; + + for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) + spa->spa_ddt[c] = ddt_table_alloc(spa, c); +} + +int +ddt_load(spa_t *spa) +{ + int error; + + ddt_create(spa); + + error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + DMU_POOL_DDT_STATS, sizeof (uint64_t), 1, + &spa->spa_ddt_stat_object); + + if (error) + return (error == ENOENT ? 0 : error); + + for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { + ddt_t *ddt = spa->spa_ddt[c]; + for (enum ddt_type type = 0; type < DDT_TYPES; type++) { + for (enum ddt_class class = 0; class < DDT_CLASSES; + class++) { + error = ddt_object_load(ddt, type, class); + if (error != 0 && error != ENOENT) + return (error); + } + } + + /* + * Seed the cached histograms. + */ + bcopy(ddt->ddt_histogram, &ddt->ddt_histogram_cache, + sizeof (ddt->ddt_histogram)); + } + + return (0); +} + +void +ddt_unload(spa_t *spa) +{ + for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { + if (spa->spa_ddt[c]) { + ddt_table_free(spa->spa_ddt[c]); + spa->spa_ddt[c] = NULL; + } + } +} + +boolean_t +ddt_class_contains(spa_t *spa, enum ddt_class max_class, const blkptr_t *bp) +{ + ddt_t *ddt; + ddt_entry_t dde; + + if (!BP_GET_DEDUP(bp)) + return (B_FALSE); + + if (max_class == DDT_CLASS_UNIQUE) + return (B_TRUE); + + ddt = spa->spa_ddt[BP_GET_CHECKSUM(bp)]; + + ddt_key_fill(&dde.dde_key, bp); + + for (enum ddt_type type = 0; type < DDT_TYPES; type++) + for (enum ddt_class class = 0; class <= max_class; class++) + if (ddt_object_lookup(ddt, type, class, &dde) == 0) + return (B_TRUE); + + return (B_FALSE); +} + +ddt_entry_t * +ddt_repair_start(ddt_t *ddt, const blkptr_t *bp) +{ + ddt_key_t ddk; + ddt_entry_t *dde; + + ddt_key_fill(&ddk, bp); + + dde = ddt_alloc(&ddk); + + for (enum ddt_type type = 0; type < DDT_TYPES; type++) { + for (enum ddt_class class = 0; class < DDT_CLASSES; class++) { + /* + * We can only do repair if there are multiple copies + * of the block. For anything in the UNIQUE class, + * there's definitely only one copy, so don't even try. + */ + if (class != DDT_CLASS_UNIQUE && + ddt_object_lookup(ddt, type, class, dde) == 0) + return (dde); + } + } + + bzero(dde->dde_phys, sizeof (dde->dde_phys)); + + return (dde); +} + +void +ddt_repair_done(ddt_t *ddt, ddt_entry_t *dde) +{ + avl_index_t where; + + ddt_enter(ddt); + + if (dde->dde_repair_data != NULL && spa_writeable(ddt->ddt_spa) && + avl_find(&ddt->ddt_repair_tree, dde, &where) == NULL) + avl_insert(&ddt->ddt_repair_tree, dde, where); + else + ddt_free(dde); + + ddt_exit(ddt); +} + +static void +ddt_repair_entry_done(zio_t *zio) +{ + ddt_entry_t *rdde = zio->io_private; + + ddt_free(rdde); +} + +static void +ddt_repair_entry(ddt_t *ddt, ddt_entry_t *dde, ddt_entry_t *rdde, zio_t *rio) +{ + ddt_phys_t *ddp = dde->dde_phys; + ddt_phys_t *rddp = rdde->dde_phys; + ddt_key_t *ddk = &dde->dde_key; + ddt_key_t *rddk = &rdde->dde_key; + zio_t *zio; + blkptr_t blk; + + zio = zio_null(rio, rio->io_spa, NULL, + ddt_repair_entry_done, rdde, rio->io_flags); + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++, rddp++) { + if (ddp->ddp_phys_birth == 0 || + ddp->ddp_phys_birth != rddp->ddp_phys_birth || + bcmp(ddp->ddp_dva, rddp->ddp_dva, sizeof (ddp->ddp_dva))) + continue; + ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); + zio_nowait(zio_rewrite(zio, zio->io_spa, 0, &blk, + rdde->dde_repair_data, DDK_GET_PSIZE(rddk), NULL, NULL, + ZIO_PRIORITY_SYNC_WRITE, ZIO_DDT_CHILD_FLAGS(zio), NULL)); + } + + zio_nowait(zio); +} + +static void +ddt_repair_table(ddt_t *ddt, zio_t *rio) +{ + spa_t *spa = ddt->ddt_spa; + ddt_entry_t *dde, *rdde_next, *rdde; + avl_tree_t *t = &ddt->ddt_repair_tree; + blkptr_t blk; + + if (spa_sync_pass(spa) > 1) + return; + + ddt_enter(ddt); + for (rdde = avl_first(t); rdde != NULL; rdde = rdde_next) { + rdde_next = AVL_NEXT(t, rdde); + avl_remove(&ddt->ddt_repair_tree, rdde); + ddt_exit(ddt); + ddt_bp_create(ddt->ddt_checksum, &rdde->dde_key, NULL, &blk); + dde = ddt_repair_start(ddt, &blk); + ddt_repair_entry(ddt, dde, rdde, rio); + ddt_repair_done(ddt, dde); + ddt_enter(ddt); + } + ddt_exit(ddt); +} + +static void +ddt_sync_entry(ddt_t *ddt, ddt_entry_t *dde, dmu_tx_t *tx, uint64_t txg) +{ + dsl_pool_t *dp = ddt->ddt_spa->spa_dsl_pool; + ddt_phys_t *ddp = dde->dde_phys; + ddt_key_t *ddk = &dde->dde_key; + enum ddt_type otype = dde->dde_type; + enum ddt_type ntype = DDT_TYPE_CURRENT; + enum ddt_class oclass = dde->dde_class; + enum ddt_class nclass; + uint64_t total_refcnt = 0; + + ASSERT(dde->dde_loaded); + ASSERT(!dde->dde_loading); + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { + ASSERT(dde->dde_lead_zio[p] == NULL); + ASSERT((int64_t)ddp->ddp_refcnt >= 0); + if (ddp->ddp_phys_birth == 0) { + ASSERT(ddp->ddp_refcnt == 0); + continue; + } + if (p == DDT_PHYS_DITTO) { + if (ddt_ditto_copies_needed(ddt, dde, NULL) == 0) + ddt_phys_free(ddt, ddk, ddp, txg); + continue; + } + if (ddp->ddp_refcnt == 0) + ddt_phys_free(ddt, ddk, ddp, txg); + total_refcnt += ddp->ddp_refcnt; + } + + if (dde->dde_phys[DDT_PHYS_DITTO].ddp_phys_birth != 0) + nclass = DDT_CLASS_DITTO; + else if (total_refcnt > 1) + nclass = DDT_CLASS_DUPLICATE; + else + nclass = DDT_CLASS_UNIQUE; + + if (otype != DDT_TYPES && + (otype != ntype || oclass != nclass || total_refcnt == 0)) { + VERIFY(ddt_object_remove(ddt, otype, oclass, dde, tx) == 0); + ASSERT(ddt_object_lookup(ddt, otype, oclass, dde) == ENOENT); + } + + if (total_refcnt != 0) { + dde->dde_type = ntype; + dde->dde_class = nclass; + ddt_stat_update(ddt, dde, 0); + if (!ddt_object_exists(ddt, ntype, nclass)) + ddt_object_create(ddt, ntype, nclass, tx); + VERIFY(ddt_object_update(ddt, ntype, nclass, dde, tx) == 0); + + /* + * If the class changes, the order that we scan this bp + * changes. If it decreases, we could miss it, so + * scan it right now. (This covers both class changing + * while we are doing ddt_walk(), and when we are + * traversing.) + */ + if (nclass < oclass) { + dsl_scan_ddt_entry(dp->dp_scan, + ddt->ddt_checksum, dde, tx); + } + } +} + +static void +ddt_sync_table(ddt_t *ddt, dmu_tx_t *tx, uint64_t txg) +{ + spa_t *spa = ddt->ddt_spa; + ddt_entry_t *dde; + void *cookie = NULL; + + if (avl_numnodes(&ddt->ddt_tree) == 0) + return; + + ASSERT(spa->spa_uberblock.ub_version >= SPA_VERSION_DEDUP); + + if (spa->spa_ddt_stat_object == 0) { + spa->spa_ddt_stat_object = zap_create(ddt->ddt_os, + DMU_OT_DDT_STATS, DMU_OT_NONE, 0, tx); + VERIFY(zap_add(ddt->ddt_os, DMU_POOL_DIRECTORY_OBJECT, + DMU_POOL_DDT_STATS, sizeof (uint64_t), 1, + &spa->spa_ddt_stat_object, tx) == 0); + } + + while ((dde = avl_destroy_nodes(&ddt->ddt_tree, &cookie)) != NULL) { + ddt_sync_entry(ddt, dde, tx, txg); + ddt_free(dde); + } + + for (enum ddt_type type = 0; type < DDT_TYPES; type++) { + for (enum ddt_class class = 0; class < DDT_CLASSES; class++) { + if (!ddt_object_exists(ddt, type, class)) + continue; + ddt_object_sync(ddt, type, class, tx); + if (ddt_object_count(ddt, type, class) == 0) + ddt_object_destroy(ddt, type, class, tx); + } + } + + bcopy(ddt->ddt_histogram, &ddt->ddt_histogram_cache, + sizeof (ddt->ddt_histogram)); +} + +void +ddt_sync(spa_t *spa, uint64_t txg) +{ + dmu_tx_t *tx; + zio_t *rio = zio_root(spa, NULL, NULL, + ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); + + ASSERT(spa_syncing_txg(spa) == txg); + + tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); + + for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { + ddt_t *ddt = spa->spa_ddt[c]; + if (ddt == NULL) + continue; + ddt_sync_table(ddt, tx, txg); + ddt_repair_table(ddt, rio); + } + + (void) zio_wait(rio); + + dmu_tx_commit(tx); +} + +int +ddt_walk(spa_t *spa, ddt_bookmark_t *ddb, ddt_entry_t *dde) +{ + do { + do { + do { + ddt_t *ddt = spa->spa_ddt[ddb->ddb_checksum]; + int error = ENOENT; + if (ddt_object_exists(ddt, ddb->ddb_type, + ddb->ddb_class)) { + error = ddt_object_walk(ddt, + ddb->ddb_type, ddb->ddb_class, + &ddb->ddb_cursor, dde); + } + dde->dde_type = ddb->ddb_type; + dde->dde_class = ddb->ddb_class; + if (error == 0) + return (0); + if (error != ENOENT) + return (error); + ddb->ddb_cursor = 0; + } while (++ddb->ddb_checksum < ZIO_CHECKSUM_FUNCTIONS); + ddb->ddb_checksum = 0; + } while (++ddb->ddb_type < DDT_TYPES); + ddb->ddb_type = 0; + } while (++ddb->ddb_class < DDT_CLASSES); + + return (ENOENT); +} diff --git a/module/zfs/ddt_zap.c b/module/zfs/ddt_zap.c new file mode 100644 index 000000000..d6a991c7c --- /dev/null +++ b/module/zfs/ddt_zap.c @@ -0,0 +1,157 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/zfs_context.h> +#include <sys/spa.h> +#include <sys/zio.h> +#include <sys/ddt.h> +#include <sys/zap.h> +#include <sys/dmu_tx.h> +#include <util/sscanf.h> + +int ddt_zap_leaf_blockshift = 12; +int ddt_zap_indirect_blockshift = 12; + +static int +ddt_zap_create(objset_t *os, uint64_t *objectp, dmu_tx_t *tx, boolean_t prehash) +{ + zap_flags_t flags = ZAP_FLAG_HASH64 | ZAP_FLAG_UINT64_KEY; + + if (prehash) + flags |= ZAP_FLAG_PRE_HASHED_KEY; + + *objectp = zap_create_flags(os, 0, flags, DMU_OT_DDT_ZAP, + ddt_zap_leaf_blockshift, ddt_zap_indirect_blockshift, + DMU_OT_NONE, 0, tx); + + return (*objectp == 0 ? ENOTSUP : 0); +} + +static int +ddt_zap_destroy(objset_t *os, uint64_t object, dmu_tx_t *tx) +{ + return (zap_destroy(os, object, tx)); +} + +static int +ddt_zap_lookup(objset_t *os, uint64_t object, ddt_entry_t *dde) +{ + uchar_t cbuf[sizeof (dde->dde_phys) + 1]; + uint64_t one, csize; + int error; + + error = zap_length_uint64(os, object, (uint64_t *)&dde->dde_key, + DDT_KEY_WORDS, &one, &csize); + if (error) + return (error); + + ASSERT(one == 1); + ASSERT(csize <= sizeof (cbuf)); + + error = zap_lookup_uint64(os, object, (uint64_t *)&dde->dde_key, + DDT_KEY_WORDS, 1, csize, cbuf); + if (error) + return (error); + + ddt_decompress(cbuf, dde->dde_phys, csize, sizeof (dde->dde_phys)); + + return (0); +} + +static void +ddt_zap_prefetch(objset_t *os, uint64_t object, ddt_entry_t *dde) +{ + (void) zap_prefetch_uint64(os, object, (uint64_t *)&dde->dde_key, + DDT_KEY_WORDS); +} + +static int +ddt_zap_update(objset_t *os, uint64_t object, ddt_entry_t *dde, dmu_tx_t *tx) +{ + uchar_t cbuf[sizeof (dde->dde_phys) + 1]; + uint64_t csize; + + csize = ddt_compress(dde->dde_phys, cbuf, + sizeof (dde->dde_phys), sizeof (cbuf)); + + return (zap_update_uint64(os, object, (uint64_t *)&dde->dde_key, + DDT_KEY_WORDS, 1, csize, cbuf, tx)); +} + +static int +ddt_zap_remove(objset_t *os, uint64_t object, ddt_entry_t *dde, dmu_tx_t *tx) +{ + return (zap_remove_uint64(os, object, (uint64_t *)&dde->dde_key, + DDT_KEY_WORDS, tx)); +} + +static int +ddt_zap_walk(objset_t *os, uint64_t object, ddt_entry_t *dde, uint64_t *walk) +{ + zap_cursor_t zc; + zap_attribute_t za; + int error; + + zap_cursor_init_serialized(&zc, os, object, *walk); + if ((error = zap_cursor_retrieve(&zc, &za)) == 0) { + uchar_t cbuf[sizeof (dde->dde_phys) + 1]; + uint64_t csize = za.za_num_integers; + ASSERT(za.za_integer_length == 1); + error = zap_lookup_uint64(os, object, (uint64_t *)za.za_name, + DDT_KEY_WORDS, 1, csize, cbuf); + ASSERT(error == 0); + if (error == 0) { + ddt_decompress(cbuf, dde->dde_phys, csize, + sizeof (dde->dde_phys)); + dde->dde_key = *(ddt_key_t *)za.za_name; + } + zap_cursor_advance(&zc); + *walk = zap_cursor_serialize(&zc); + } + zap_cursor_fini(&zc); + return (error); +} + +static uint64_t +ddt_zap_count(objset_t *os, uint64_t object) +{ + uint64_t count = 0; + + VERIFY(zap_count(os, object, &count) == 0); + + return (count); +} + +const ddt_ops_t ddt_zap_ops = { + "zap", + ddt_zap_create, + ddt_zap_destroy, + ddt_zap_lookup, + ddt_zap_prefetch, + ddt_zap_update, + ddt_zap_remove, + ddt_zap_walk, + ddt_zap_count, +}; diff --git a/module/zfs/dmu.c b/module/zfs/dmu.c index d86468202..5b87c81c6 100644 --- a/module/zfs/dmu.c +++ b/module/zfs/dmu.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/dmu.h> @@ -40,6 +39,7 @@ #include <sys/zfs_ioctl.h> #include <sys/zap.h> #include <sys/zio_checksum.h> +#include <sys/sa.h> #ifdef _KERNEL #include <sys/vmsystm.h> #include <sys/zfs_znode.h> @@ -51,8 +51,8 @@ const dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES] = { { byteswap_uint64_array, TRUE, "object array" }, { byteswap_uint8_array, TRUE, "packed nvlist" }, { byteswap_uint64_array, TRUE, "packed nvlist size" }, - { byteswap_uint64_array, TRUE, "bplist" }, - { byteswap_uint64_array, TRUE, "bplist header" }, + { byteswap_uint64_array, TRUE, "bpobj" }, + { byteswap_uint64_array, TRUE, "bpobj header" }, { byteswap_uint64_array, TRUE, "SPA space map header" }, { byteswap_uint64_array, TRUE, "SPA space map" }, { byteswap_uint64_array, TRUE, "ZIL intent log" }, @@ -84,22 +84,38 @@ const dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES] = { { byteswap_uint8_array, TRUE, "FUID table" }, { byteswap_uint64_array, TRUE, "FUID table size" }, { zap_byteswap, TRUE, "DSL dataset next clones"}, - { zap_byteswap, TRUE, "scrub work queue" }, + { zap_byteswap, TRUE, "scan work queue" }, { zap_byteswap, TRUE, "ZFS user/group used" }, { zap_byteswap, TRUE, "ZFS user/group quota" }, { zap_byteswap, TRUE, "snapshot refcount tags"}, + { zap_byteswap, TRUE, "DDT ZAP algorithm" }, + { zap_byteswap, TRUE, "DDT statistics" }, + { byteswap_uint8_array, TRUE, "System attributes" }, + { zap_byteswap, TRUE, "SA master node" }, + { zap_byteswap, TRUE, "SA attr registration" }, + { zap_byteswap, TRUE, "SA attr layouts" }, + { zap_byteswap, TRUE, "scan translations" }, + { byteswap_uint8_array, FALSE, "deduplicated block" }, + { zap_byteswap, TRUE, "DSL deadlist map" }, + { byteswap_uint64_array, TRUE, "DSL deadlist map hdr" }, + { zap_byteswap, TRUE, "DSL dir clones" }, + { byteswap_uint64_array, TRUE, "bpobj subobj" }, }; int dmu_buf_hold(objset_t *os, uint64_t object, uint64_t offset, - void *tag, dmu_buf_t **dbp) + void *tag, dmu_buf_t **dbp, int flags) { dnode_t *dn; uint64_t blkid; dmu_buf_impl_t *db; int err; + int db_flags = DB_RF_CANFAIL; - err = dnode_hold(os->os, object, FTAG, &dn); + if (flags & DMU_READ_NO_PREFETCH) + db_flags |= DB_RF_NOPREFETCH; + + err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); blkid = dbuf_whichblock(dn, offset); @@ -109,7 +125,7 @@ dmu_buf_hold(objset_t *os, uint64_t object, uint64_t offset, if (db == NULL) { err = EIO; } else { - err = dbuf_read(db, NULL, DB_RF_CANFAIL); + err = dbuf_read(db, NULL, db_flags); if (err) { dbuf_rele(db, tag); db = NULL; @@ -140,6 +156,36 @@ dmu_set_bonus(dmu_buf_t *db, int newsize, dmu_tx_t *tx) return (0); } +int +dmu_set_bonustype(dmu_buf_t *db, dmu_object_type_t type, dmu_tx_t *tx) +{ + dnode_t *dn = ((dmu_buf_impl_t *)db)->db_dnode; + + if (type > DMU_OT_NUMTYPES) + return (EINVAL); + + if (dn->dn_bonus != (dmu_buf_impl_t *)db) + return (EINVAL); + + dnode_setbonus_type(dn, type, tx); + return (0); +} + +int +dmu_rm_spill(objset_t *os, uint64_t object, dmu_tx_t *tx) +{ + dnode_t *dn; + int error; + + error = dnode_hold(os, object, FTAG, &dn); + dbuf_rm_spill(dn, tx); + rw_enter(&dn->dn_struct_rwlock, RW_WRITER); + dnode_rm_spill(dn, tx); + rw_exit(&dn->dn_struct_rwlock); + dnode_rele(dn, FTAG); + return (error); +} + /* * returns ENOENT, EIO, or 0. */ @@ -150,7 +196,7 @@ dmu_bonus_hold(objset_t *os, uint64_t object, void *tag, dmu_buf_t **dbp) dmu_buf_impl_t *db; int error; - error = dnode_hold(os->os, object, FTAG, &dn); + error = dnode_hold(os, object, FTAG, &dn); if (error) return (error); @@ -170,13 +216,68 @@ dmu_bonus_hold(objset_t *os, uint64_t object, void *tag, dmu_buf_t **dbp) dnode_rele(dn, FTAG); - VERIFY(0 == dbuf_read(db, NULL, DB_RF_MUST_SUCCEED)); + VERIFY(0 == dbuf_read(db, NULL, DB_RF_MUST_SUCCEED | DB_RF_NOPREFETCH)); *dbp = &db->db; return (0); } /* + * returns ENOENT, EIO, or 0. + * + * This interface will allocate a blank spill dbuf when a spill blk + * doesn't already exist on the dnode. + * + * if you only want to find an already existing spill db, then + * dmu_spill_hold_existing() should be used. + */ +int +dmu_spill_hold_by_dnode(dnode_t *dn, uint32_t flags, void *tag, dmu_buf_t **dbp) +{ + dmu_buf_impl_t *db = NULL; + int err; + + if ((flags & DB_RF_HAVESTRUCT) == 0) + rw_enter(&dn->dn_struct_rwlock, RW_READER); + + db = dbuf_hold(dn, DMU_SPILL_BLKID, tag); + + if ((flags & DB_RF_HAVESTRUCT) == 0) + rw_exit(&dn->dn_struct_rwlock); + + ASSERT(db != NULL); + err = dbuf_read(db, NULL, DB_RF_MUST_SUCCEED | flags); + *dbp = &db->db; + return (err); +} + +int +dmu_spill_hold_existing(dmu_buf_t *bonus, void *tag, dmu_buf_t **dbp) +{ + dnode_t *dn = ((dmu_buf_impl_t *)bonus)->db_dnode; + int err; + + if (spa_version(dn->dn_objset->os_spa) < SPA_VERSION_SA) + return (EINVAL); + rw_enter(&dn->dn_struct_rwlock, RW_READER); + + if (!dn->dn_have_spill) { + rw_exit(&dn->dn_struct_rwlock); + return (ENOENT); + } + err = dmu_spill_hold_by_dnode(dn, DB_RF_HAVESTRUCT, tag, dbp); + rw_exit(&dn->dn_struct_rwlock); + return (err); +} + +int +dmu_spill_hold_by_bonus(dmu_buf_t *bonus, void *tag, dmu_buf_t **dbp) +{ + return (dmu_spill_hold_by_dnode(((dmu_buf_impl_t *)bonus)->db_dnode, + 0, tag, dbp)); +} + +/* * Note: longer-term, we should modify all of the dmu_buf_*() interfaces * to take a held dnode rather than <os, object> -- the lookup is wasteful, * and can induce severe lock contention when writing to several files @@ -282,7 +383,7 @@ dmu_buf_hold_array(objset_t *os, uint64_t object, uint64_t offset, dnode_t *dn; int err; - err = dnode_hold(os->os, object, FTAG, &dn); + err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); @@ -335,7 +436,7 @@ dmu_prefetch(objset_t *os, uint64_t object, uint64_t offset, uint64_t len) return; if (len == 0) { /* they're interested in the bonus buffer */ - dn = os->os->os_meta_dnode; + dn = os->os_meta_dnode; if (object == 0 || object >= DN_MAX_OBJECT) return; @@ -352,7 +453,7 @@ dmu_prefetch(objset_t *os, uint64_t object, uint64_t offset, uint64_t len) * already cached, we will do a *synchronous* read in the * dnode_hold() call. The same is true for any indirects. */ - err = dnode_hold(os->os, object, FTAG, &dn); + err = dnode_hold(os, object, FTAG, &dn); if (err != 0) return; @@ -484,7 +585,7 @@ dmu_free_long_range(objset_t *os, uint64_t object, dnode_t *dn; int err; - err = dnode_hold(os->os, object, FTAG, &dn); + err = dnode_hold(os, object, FTAG, &dn); if (err != 0) return (err); err = dmu_free_long_range_impl(os, dn, offset, length, FALSE); @@ -499,7 +600,7 @@ dmu_free_object(objset_t *os, uint64_t object) dmu_tx_t *tx; int err; - err = dnode_hold_impl(os->os, object, DNODE_MUST_BE_ALLOCATED, + err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, FTAG, &dn); if (err != 0) return (err); @@ -527,7 +628,7 @@ dmu_free_range(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, dmu_tx_t *tx) { dnode_t *dn; - int err = dnode_hold(os->os, object, FTAG, &dn); + int err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); ASSERT(offset < UINT64_MAX); @@ -545,7 +646,7 @@ dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, dmu_buf_t **dbp; int numbufs, err; - err = dnode_hold(os->os, object, FTAG, &dn); + err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); @@ -659,12 +760,136 @@ dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, dmu_buf_rele_array(dbp, numbufs, FTAG); } +/* + * DMU support for xuio + */ +kstat_t *xuio_ksp = NULL; + +int +dmu_xuio_init(xuio_t *xuio, int nblk) +{ + dmu_xuio_t *priv; + uio_t *uio = &xuio->xu_uio; + + uio->uio_iovcnt = nblk; + uio->uio_iov = kmem_zalloc(nblk * sizeof (iovec_t), KM_SLEEP); + + priv = kmem_zalloc(sizeof (dmu_xuio_t), KM_SLEEP); + priv->cnt = nblk; + priv->bufs = kmem_zalloc(nblk * sizeof (arc_buf_t *), KM_SLEEP); + priv->iovp = uio->uio_iov; + XUIO_XUZC_PRIV(xuio) = priv; + + if (XUIO_XUZC_RW(xuio) == UIO_READ) + XUIOSTAT_INCR(xuiostat_onloan_rbuf, nblk); + else + XUIOSTAT_INCR(xuiostat_onloan_wbuf, nblk); + + return (0); +} + +void +dmu_xuio_fini(xuio_t *xuio) +{ + dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio); + int nblk = priv->cnt; + + kmem_free(priv->iovp, nblk * sizeof (iovec_t)); + kmem_free(priv->bufs, nblk * sizeof (arc_buf_t *)); + kmem_free(priv, sizeof (dmu_xuio_t)); + + if (XUIO_XUZC_RW(xuio) == UIO_READ) + XUIOSTAT_INCR(xuiostat_onloan_rbuf, -nblk); + else + XUIOSTAT_INCR(xuiostat_onloan_wbuf, -nblk); +} + +/* + * Initialize iov[priv->next] and priv->bufs[priv->next] with { off, n, abuf } + * and increase priv->next by 1. + */ +int +dmu_xuio_add(xuio_t *xuio, arc_buf_t *abuf, offset_t off, size_t n) +{ + struct iovec *iov; + uio_t *uio = &xuio->xu_uio; + dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio); + int i = priv->next++; + + ASSERT(i < priv->cnt); + ASSERT(off + n <= arc_buf_size(abuf)); + iov = uio->uio_iov + i; + iov->iov_base = (char *)abuf->b_data + off; + iov->iov_len = n; + priv->bufs[i] = abuf; + return (0); +} + +int +dmu_xuio_cnt(xuio_t *xuio) +{ + dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio); + return (priv->cnt); +} + +arc_buf_t * +dmu_xuio_arcbuf(xuio_t *xuio, int i) +{ + dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio); + + ASSERT(i < priv->cnt); + return (priv->bufs[i]); +} + +void +dmu_xuio_clear(xuio_t *xuio, int i) +{ + dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio); + + ASSERT(i < priv->cnt); + priv->bufs[i] = NULL; +} + +static void +xuio_stat_init(void) +{ + xuio_ksp = kstat_create("zfs", 0, "xuio_stats", "misc", + KSTAT_TYPE_NAMED, sizeof (xuio_stats) / sizeof (kstat_named_t), + KSTAT_FLAG_VIRTUAL); + if (xuio_ksp != NULL) { + xuio_ksp->ks_data = &xuio_stats; + kstat_install(xuio_ksp); + } +} + +static void +xuio_stat_fini(void) +{ + if (xuio_ksp != NULL) { + kstat_delete(xuio_ksp); + xuio_ksp = NULL; + } +} + +void +xuio_stat_wbuf_copied() +{ + XUIOSTAT_BUMP(xuiostat_wbuf_copied); +} + +void +xuio_stat_wbuf_nocopy() +{ + XUIOSTAT_BUMP(xuiostat_wbuf_nocopy); +} + #ifdef _KERNEL int dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size) { dmu_buf_t **dbp; int numbufs, i, err; + xuio_t *xuio = NULL; /* * NB: we could do this block-at-a-time, but it's nice @@ -675,6 +900,9 @@ dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size) if (err) return (err); + if (uio->uio_extflg == UIO_XUIO) + xuio = (xuio_t *)uio; + for (i = 0; i < numbufs; i++) { int tocpy; int bufoff; @@ -685,8 +913,24 @@ dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size) bufoff = uio->uio_loffset - db->db_offset; tocpy = (int)MIN(db->db_size - bufoff, size); - err = uiomove((char *)db->db_data + bufoff, tocpy, - UIO_READ, uio); + if (xuio) { + dmu_buf_impl_t *dbi = (dmu_buf_impl_t *)db; + arc_buf_t *dbuf_abuf = dbi->db_buf; + arc_buf_t *abuf = dbuf_loan_arcbuf(dbi); + err = dmu_xuio_add(xuio, abuf, bufoff, tocpy); + if (!err) { + uio->uio_resid -= tocpy; + uio->uio_loffset += tocpy; + } + + if (abuf == dbuf_abuf) + XUIOSTAT_BUMP(xuiostat_rbuf_nocopy); + else + XUIOSTAT_BUMP(xuiostat_rbuf_copied); + } else { + err = uiomove((char *)db->db_data + bufoff, tocpy, + UIO_READ, uio); + } if (err) break; @@ -697,19 +941,16 @@ dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size) return (err); } -int -dmu_write_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size, - dmu_tx_t *tx) +static int +dmu_write_uio_dnode(dnode_t *dn, uio_t *uio, uint64_t size, dmu_tx_t *tx) { dmu_buf_t **dbp; - int numbufs, i; + int numbufs; int err = 0; + int i; - if (size == 0) - return (0); - - err = dmu_buf_hold_array(os, object, uio->uio_loffset, size, - FALSE, FTAG, &numbufs, &dbp); + err = dmu_buf_hold_array_by_dnode(dn, uio->uio_loffset, size, + FALSE, FTAG, &numbufs, &dbp, DMU_READ_PREFETCH); if (err) return (err); @@ -747,11 +988,44 @@ dmu_write_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size, size -= tocpy; } + dmu_buf_rele_array(dbp, numbufs, FTAG); return (err); } int +dmu_write_uio_dbuf(dmu_buf_t *zdb, uio_t *uio, uint64_t size, + dmu_tx_t *tx) +{ + if (size == 0) + return (0); + + return (dmu_write_uio_dnode(((dmu_buf_impl_t *)zdb)->db_dnode, + uio, size, tx)); +} + +int +dmu_write_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size, + dmu_tx_t *tx) +{ + dnode_t *dn; + int err; + + if (size == 0) + return (0); + + err = dnode_hold(os, object, FTAG, &dn); + if (err) + return (err); + + err = dmu_write_uio_dnode(dn, uio, size, tx); + + dnode_rele(dn, FTAG); + + return (err); +} + +int dmu_write_pages(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, page_t *pp, dmu_tx_t *tx) { @@ -852,55 +1126,122 @@ dmu_assign_arcbuf(dmu_buf_t *handle, uint64_t offset, arc_buf_t *buf, dbuf_rele(db, FTAG); } else { dbuf_rele(db, FTAG); - ASSERT(dn->dn_objset->os.os == dn->dn_objset); - dmu_write(&dn->dn_objset->os, dn->dn_object, offset, blksz, + dmu_write(dn->dn_objset, dn->dn_object, offset, blksz, buf->b_data, tx); dmu_return_arcbuf(buf); + XUIOSTAT_BUMP(xuiostat_wbuf_copied); } } typedef struct { - dbuf_dirty_record_t *dr; - dmu_sync_cb_t *done; - void *arg; + dbuf_dirty_record_t *dsa_dr; + dmu_sync_cb_t *dsa_done; + zgd_t *dsa_zgd; + dmu_tx_t *dsa_tx; } dmu_sync_arg_t; /* ARGSUSED */ static void dmu_sync_ready(zio_t *zio, arc_buf_t *buf, void *varg) { + dmu_sync_arg_t *dsa = varg; + dmu_buf_t *db = dsa->dsa_zgd->zgd_db; + dnode_t *dn = ((dmu_buf_impl_t *)db)->db_dnode; blkptr_t *bp = zio->io_bp; - if (!BP_IS_HOLE(bp)) { - dmu_sync_arg_t *in = varg; - dbuf_dirty_record_t *dr = in->dr; - dmu_buf_impl_t *db = dr->dr_dbuf; - ASSERT(BP_GET_TYPE(bp) == db->db_dnode->dn_type); - ASSERT(BP_GET_LEVEL(bp) == 0); - bp->blk_fill = 1; + if (zio->io_error == 0) { + if (BP_IS_HOLE(bp)) { + /* + * A block of zeros may compress to a hole, but the + * block size still needs to be known for replay. + */ + BP_SET_LSIZE(bp, db->db_size); + } else { + ASSERT(BP_GET_TYPE(bp) == dn->dn_type); + ASSERT(BP_GET_LEVEL(bp) == 0); + bp->blk_fill = 1; + } } } +static void +dmu_sync_late_arrival_ready(zio_t *zio) +{ + dmu_sync_ready(zio, NULL, zio->io_private); +} + /* ARGSUSED */ static void dmu_sync_done(zio_t *zio, arc_buf_t *buf, void *varg) { - dmu_sync_arg_t *in = varg; - dbuf_dirty_record_t *dr = in->dr; + dmu_sync_arg_t *dsa = varg; + dbuf_dirty_record_t *dr = dsa->dsa_dr; dmu_buf_impl_t *db = dr->dr_dbuf; - dmu_sync_cb_t *done = in->done; mutex_enter(&db->db_mtx); ASSERT(dr->dt.dl.dr_override_state == DR_IN_DMU_SYNC); - dr->dt.dl.dr_overridden_by = *zio->io_bp; /* structure assignment */ - dr->dt.dl.dr_override_state = DR_OVERRIDDEN; + if (zio->io_error == 0) { + dr->dt.dl.dr_overridden_by = *zio->io_bp; + dr->dt.dl.dr_override_state = DR_OVERRIDDEN; + dr->dt.dl.dr_copies = zio->io_prop.zp_copies; + if (BP_IS_HOLE(&dr->dt.dl.dr_overridden_by)) + BP_ZERO(&dr->dt.dl.dr_overridden_by); + } else { + dr->dt.dl.dr_override_state = DR_NOT_OVERRIDDEN; + } cv_broadcast(&db->db_changed); mutex_exit(&db->db_mtx); - if (done) - done(&(db->db), in->arg); + dsa->dsa_done(dsa->dsa_zgd, zio->io_error); - kmem_free(in, sizeof (dmu_sync_arg_t)); + kmem_free(dsa, sizeof (*dsa)); +} + +static void +dmu_sync_late_arrival_done(zio_t *zio) +{ + blkptr_t *bp = zio->io_bp; + dmu_sync_arg_t *dsa = zio->io_private; + + if (zio->io_error == 0 && !BP_IS_HOLE(bp)) { + ASSERT(zio->io_bp->blk_birth == zio->io_txg); + ASSERT(zio->io_txg > spa_syncing_txg(zio->io_spa)); + zio_free(zio->io_spa, zio->io_txg, zio->io_bp); + } + + dmu_tx_commit(dsa->dsa_tx); + + dsa->dsa_done(dsa->dsa_zgd, zio->io_error); + + kmem_free(dsa, sizeof (*dsa)); +} + +static int +dmu_sync_late_arrival(zio_t *pio, objset_t *os, dmu_sync_cb_t *done, zgd_t *zgd, + zio_prop_t *zp, zbookmark_t *zb) +{ + dmu_sync_arg_t *dsa; + dmu_tx_t *tx; + + tx = dmu_tx_create(os); + dmu_tx_hold_space(tx, zgd->zgd_db->db_size); + if (dmu_tx_assign(tx, TXG_WAIT) != 0) { + dmu_tx_abort(tx); + return (EIO); /* Make zl_get_data do txg_waited_synced() */ + } + + dsa = kmem_alloc(sizeof (dmu_sync_arg_t), KM_SLEEP); + dsa->dsa_dr = NULL; + dsa->dsa_done = done; + dsa->dsa_zgd = zgd; + dsa->dsa_tx = tx; + + zio_nowait(zio_write(pio, os->os_spa, dmu_tx_get_txg(tx), zgd->zgd_bp, + zgd->zgd_db->db_data, zgd->zgd_db->db_size, zp, + dmu_sync_late_arrival_ready, dmu_sync_late_arrival_done, dsa, + ZIO_PRIORITY_SYNC_WRITE, ZIO_FLAG_CANFAIL, zb)); + + return (0); } /* @@ -919,156 +1260,108 @@ dmu_sync_done(zio_t *zio, arc_buf_t *buf, void *varg) * EALREADY: this block is already in the process of being synced. * The caller should track its progress (somehow). * - * EINPROGRESS: the IO has been initiated. - * The caller should log this blkptr in the callback. + * EIO: could not do the I/O. + * The caller should do a txg_wait_synced(). * - * 0: completed. Sets *bp to the blkptr just written. - * The caller should log this blkptr immediately. + * 0: the I/O has been initiated. + * The caller should log this blkptr in the done callback. + * It is possible that the I/O will fail, in which case + * the error will be reported to the done callback and + * propagated to pio from zio_done(). */ int -dmu_sync(zio_t *pio, dmu_buf_t *db_fake, - blkptr_t *bp, uint64_t txg, dmu_sync_cb_t *done, void *arg) +dmu_sync(zio_t *pio, uint64_t txg, dmu_sync_cb_t *done, zgd_t *zgd) { - dmu_buf_impl_t *db = (dmu_buf_impl_t *)db_fake; - objset_impl_t *os = db->db_objset; - dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; - tx_state_t *tx = &dp->dp_tx; + blkptr_t *bp = zgd->zgd_bp; + dmu_buf_impl_t *db = (dmu_buf_impl_t *)zgd->zgd_db; + objset_t *os = db->db_objset; + dsl_dataset_t *ds = os->os_dsl_dataset; dbuf_dirty_record_t *dr; - dmu_sync_arg_t *in; + dmu_sync_arg_t *dsa; zbookmark_t zb; - writeprops_t wp = { 0 }; - zio_t *zio; - int err; + zio_prop_t zp; + ASSERT(pio != NULL); ASSERT(BP_IS_HOLE(bp)); ASSERT(txg != 0); - dprintf("dmu_sync txg=%llu, s,o,q %llu %llu %llu\n", - txg, tx->tx_synced_txg, tx->tx_open_txg, tx->tx_quiesced_txg); + SET_BOOKMARK(&zb, ds->ds_object, + db->db.db_object, db->db_level, db->db_blkid); + + dmu_write_policy(os, db->db_dnode, db->db_level, WP_DMU_SYNC, &zp); /* - * XXX - would be nice if we could do this without suspending... + * If we're frozen (running ziltest), we always need to generate a bp. */ - txg_suspend(dp); + if (txg > spa_freeze_txg(os->os_spa)) + return (dmu_sync_late_arrival(pio, os, done, zgd, &zp, &zb)); /* - * If this txg already synced, there's nothing to do. + * Grabbing db_mtx now provides a barrier between dbuf_sync_leaf() + * and us. If we determine that this txg is not yet syncing, + * but it begins to sync a moment later, that's OK because the + * sync thread will block in dbuf_sync_leaf() until we drop db_mtx. */ - if (txg <= tx->tx_synced_txg) { - txg_resume(dp); + mutex_enter(&db->db_mtx); + + if (txg <= spa_last_synced_txg(os->os_spa)) { /* - * If we're running ziltest, we need the blkptr regardless. + * This txg has already synced. There's nothing to do. */ - if (txg > spa_freeze_txg(dp->dp_spa)) { - /* if db_blkptr == NULL, this was an empty write */ - if (db->db_blkptr) - *bp = *db->db_blkptr; /* structure assignment */ - return (0); - } + mutex_exit(&db->db_mtx); return (EEXIST); } - mutex_enter(&db->db_mtx); - - if (txg == tx->tx_syncing_txg) { - while (db->db_data_pending) { - /* - * IO is in-progress. Wait for it to finish. - * XXX - would be nice to be able to somehow "attach" - * this zio to the parent zio passed in. - */ - cv_wait(&db->db_changed, &db->db_mtx); - if (!db->db_data_pending && - db->db_blkptr && BP_IS_HOLE(db->db_blkptr)) { - /* - * IO was compressed away - */ - *bp = *db->db_blkptr; /* structure assignment */ - mutex_exit(&db->db_mtx); - txg_resume(dp); - return (0); - } - ASSERT(db->db_data_pending || - (db->db_blkptr && db->db_blkptr->blk_birth == txg)); - } - - if (db->db_blkptr && db->db_blkptr->blk_birth == txg) { - /* - * IO is already completed. - */ - *bp = *db->db_blkptr; /* structure assignment */ - mutex_exit(&db->db_mtx); - txg_resume(dp); - return (0); - } + if (txg <= spa_syncing_txg(os->os_spa)) { + /* + * This txg is currently syncing, so we can't mess with + * the dirty record anymore; just write a new log block. + */ + mutex_exit(&db->db_mtx); + return (dmu_sync_late_arrival(pio, os, done, zgd, &zp, &zb)); } dr = db->db_last_dirty; - while (dr && dr->dr_txg > txg) + while (dr && dr->dr_txg != txg) dr = dr->dr_next; - if (dr == NULL || dr->dr_txg < txg) { + + if (dr == NULL) { /* - * This dbuf isn't dirty, must have been free_range'd. + * There's no dr for this dbuf, so it must have been freed. * There's no need to log writes to freed blocks, so we're done. */ mutex_exit(&db->db_mtx); - txg_resume(dp); return (ENOENT); } ASSERT(dr->dr_txg == txg); - if (dr->dt.dl.dr_override_state == DR_IN_DMU_SYNC) { - /* - * We have already issued a sync write for this buffer. - */ - mutex_exit(&db->db_mtx); - txg_resume(dp); - return (EALREADY); - } else if (dr->dt.dl.dr_override_state == DR_OVERRIDDEN) { + if (dr->dt.dl.dr_override_state == DR_IN_DMU_SYNC || + dr->dt.dl.dr_override_state == DR_OVERRIDDEN) { /* - * This buffer has already been synced. It could not + * We have already issued a sync write for this buffer, + * or this buffer has already been synced. It could not * have been dirtied since, or we would have cleared the state. */ - *bp = dr->dt.dl.dr_overridden_by; /* structure assignment */ mutex_exit(&db->db_mtx); - txg_resume(dp); - return (0); + return (EALREADY); } + ASSERT(dr->dt.dl.dr_override_state == DR_NOT_OVERRIDDEN); dr->dt.dl.dr_override_state = DR_IN_DMU_SYNC; - in = kmem_alloc(sizeof (dmu_sync_arg_t), KM_SLEEP); - in->dr = dr; - in->done = done; - in->arg = arg; mutex_exit(&db->db_mtx); - txg_resume(dp); - - zb.zb_objset = os->os_dsl_dataset->ds_object; - zb.zb_object = db->db.db_object; - zb.zb_level = db->db_level; - zb.zb_blkid = db->db_blkid; - wp.wp_type = db->db_dnode->dn_type; - wp.wp_level = db->db_level; - wp.wp_copies = os->os_copies; - wp.wp_dnchecksum = db->db_dnode->dn_checksum; - wp.wp_oschecksum = os->os_checksum; - wp.wp_dncompress = db->db_dnode->dn_compress; - wp.wp_oscompress = os->os_compress; + dsa = kmem_alloc(sizeof (dmu_sync_arg_t), KM_SLEEP); + dsa->dsa_dr = dr; + dsa->dsa_done = done; + dsa->dsa_zgd = zgd; + dsa->dsa_tx = NULL; - ASSERT(BP_IS_HOLE(bp)); + zio_nowait(arc_write(pio, os->os_spa, txg, + bp, dr->dt.dl.dr_data, DBUF_IS_L2CACHEABLE(db), &zp, + dmu_sync_ready, dmu_sync_done, dsa, + ZIO_PRIORITY_SYNC_WRITE, ZIO_FLAG_CANFAIL, &zb)); - zio = arc_write(pio, os->os_spa, &wp, DBUF_IS_L2CACHEABLE(db), - txg, bp, dr->dt.dl.dr_data, dmu_sync_ready, dmu_sync_done, in, - ZIO_PRIORITY_SYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); - if (pio) { - zio_nowait(zio); - err = EINPROGRESS; - } else { - err = zio_wait(zio); - ASSERT(err == 0); - } - return (err); + return (0); } int @@ -1078,7 +1371,7 @@ dmu_object_set_blocksize(objset_t *os, uint64_t object, uint64_t size, int ibs, dnode_t *dn; int err; - err = dnode_hold(os->os, object, FTAG, &dn); + err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); err = dnode_set_blksz(dn, size, ibs, tx); @@ -1093,7 +1386,7 @@ dmu_object_set_checksum(objset_t *os, uint64_t object, uint8_t checksum, dnode_t *dn; /* XXX assumes dnode_hold will not get an i/o error */ - (void) dnode_hold(os->os, object, FTAG, &dn); + (void) dnode_hold(os, object, FTAG, &dn); ASSERT(checksum < ZIO_CHECKSUM_FUNCTIONS); dn->dn_checksum = checksum; dnode_setdirty(dn, tx); @@ -1107,20 +1400,98 @@ dmu_object_set_compress(objset_t *os, uint64_t object, uint8_t compress, dnode_t *dn; /* XXX assumes dnode_hold will not get an i/o error */ - (void) dnode_hold(os->os, object, FTAG, &dn); + (void) dnode_hold(os, object, FTAG, &dn); ASSERT(compress < ZIO_COMPRESS_FUNCTIONS); dn->dn_compress = compress; dnode_setdirty(dn, tx); dnode_rele(dn, FTAG); } +int zfs_mdcomp_disable = 0; + +void +dmu_write_policy(objset_t *os, dnode_t *dn, int level, int wp, zio_prop_t *zp) +{ + dmu_object_type_t type = dn ? dn->dn_type : DMU_OT_OBJSET; + boolean_t ismd = (level > 0 || dmu_ot[type].ot_metadata); + enum zio_checksum checksum = os->os_checksum; + enum zio_compress compress = os->os_compress; + enum zio_checksum dedup_checksum = os->os_dedup_checksum; + boolean_t dedup; + boolean_t dedup_verify = os->os_dedup_verify; + int copies = os->os_copies; + + /* + * Determine checksum setting. + */ + if (ismd) { + /* + * Metadata always gets checksummed. If the data + * checksum is multi-bit correctable, and it's not a + * ZBT-style checksum, then it's suitable for metadata + * as well. Otherwise, the metadata checksum defaults + * to fletcher4. + */ + if (zio_checksum_table[checksum].ci_correctable < 1 || + zio_checksum_table[checksum].ci_eck) + checksum = ZIO_CHECKSUM_FLETCHER_4; + } else { + checksum = zio_checksum_select(dn->dn_checksum, checksum); + } + + /* + * Determine compression setting. + */ + if (ismd) { + /* + * XXX -- we should design a compression algorithm + * that specializes in arrays of bps. + */ + compress = zfs_mdcomp_disable ? ZIO_COMPRESS_EMPTY : + ZIO_COMPRESS_LZJB; + } else { + compress = zio_compress_select(dn->dn_compress, compress); + } + + /* + * Determine dedup setting. If we are in dmu_sync(), we won't + * actually dedup now because that's all done in syncing context; + * but we do want to use the dedup checkum. If the checksum is not + * strong enough to ensure unique signatures, force dedup_verify. + */ + dedup = (!ismd && dedup_checksum != ZIO_CHECKSUM_OFF); + if (dedup) { + checksum = dedup_checksum; + if (!zio_checksum_table[checksum].ci_dedup) + dedup_verify = 1; + } + + if (wp & WP_DMU_SYNC) + dedup = 0; + + if (wp & WP_NOFILL) { + ASSERT(!ismd && level == 0); + checksum = ZIO_CHECKSUM_OFF; + compress = ZIO_COMPRESS_OFF; + dedup = B_FALSE; + } + + zp->zp_checksum = checksum; + zp->zp_compress = compress; + zp->zp_type = (wp & WP_SPILL) ? dn->dn_bonustype : type; + zp->zp_level = level; + zp->zp_copies = MIN(copies + ismd, spa_max_replication(os->os_spa)); + zp->zp_dedup = dedup; + zp->zp_dedup_verify = dedup && dedup_verify; +} + int dmu_offset_next(objset_t *os, uint64_t object, boolean_t hole, uint64_t *off) { dnode_t *dn; int i, err; - err = dnode_hold(os->os, object, FTAG, &dn); + err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); /* @@ -1134,7 +1505,7 @@ dmu_offset_next(objset_t *os, uint64_t object, boolean_t hole, uint64_t *off) if (i != TXG_SIZE) { dnode_rele(dn, FTAG); txg_wait_synced(dmu_objset_pool(os), 0); - err = dnode_hold(os->os, object, FTAG, &dn); + err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); } @@ -1148,21 +1519,27 @@ dmu_offset_next(objset_t *os, uint64_t object, boolean_t hole, uint64_t *off) void dmu_object_info_from_dnode(dnode_t *dn, dmu_object_info_t *doi) { + dnode_phys_t *dnp; + rw_enter(&dn->dn_struct_rwlock, RW_READER); mutex_enter(&dn->dn_mtx); + dnp = dn->dn_phys; + doi->doi_data_block_size = dn->dn_datablksz; doi->doi_metadata_block_size = dn->dn_indblkshift ? 1ULL << dn->dn_indblkshift : 0; + doi->doi_type = dn->dn_type; + doi->doi_bonus_type = dn->dn_bonustype; + doi->doi_bonus_size = dn->dn_bonuslen; doi->doi_indirection = dn->dn_nlevels; doi->doi_checksum = dn->dn_checksum; doi->doi_compress = dn->dn_compress; - doi->doi_physical_blks = (DN_USED_BYTES(dn->dn_phys) + - SPA_MINBLOCKSIZE/2) >> SPA_MINBLOCKSHIFT; - doi->doi_max_block_offset = dn->dn_phys->dn_maxblkid; - doi->doi_type = dn->dn_type; - doi->doi_bonus_size = dn->dn_bonuslen; - doi->doi_bonus_type = dn->dn_bonustype; + doi->doi_physical_blocks_512 = (DN_USED_BYTES(dnp) + 256) >> 9; + doi->doi_max_offset = (dnp->dn_maxblkid + 1) * dn->dn_datablksz; + doi->doi_fill_count = 0; + for (int i = 0; i < dnp->dn_nblkptr; i++) + doi->doi_fill_count += dnp->dn_blkptr[i].blk_fill; mutex_exit(&dn->dn_mtx); rw_exit(&dn->dn_struct_rwlock); @@ -1176,7 +1553,7 @@ int dmu_object_info(objset_t *os, uint64_t object, dmu_object_info_t *doi) { dnode_t *dn; - int err = dnode_hold(os->os, object, FTAG, &dn); + int err = dnode_hold(os, object, FTAG, &dn); if (err) return (err); @@ -1260,17 +1637,25 @@ byteswap_uint8_array(void *vbuf, size_t size) void dmu_init(void) { + zfs_dbgmsg_init(); dbuf_init(); dnode_init(); + zfetch_init(); arc_init(); l2arc_init(); + xuio_stat_init(); + sa_cache_init(); } void dmu_fini(void) { arc_fini(); + zfetch_fini(); dnode_fini(); dbuf_fini(); l2arc_fini(); + xuio_stat_fini(); + sa_cache_fini(); + zfs_dbgmsg_fini(); } diff --git a/module/zfs/dmu_object.c b/module/zfs/dmu_object.c index 1f91fc1ad..98228d403 100644 --- a/module/zfs/dmu_object.c +++ b/module/zfs/dmu_object.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/dmu.h> @@ -32,16 +31,15 @@ uint64_t dmu_object_alloc(objset_t *os, dmu_object_type_t ot, int blocksize, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx) { - objset_impl_t *osi = os->os; uint64_t object; uint64_t L2_dnode_count = DNODES_PER_BLOCK << - (osi->os_meta_dnode->dn_indblkshift - SPA_BLKPTRSHIFT); + (os->os_meta_dnode->dn_indblkshift - SPA_BLKPTRSHIFT); dnode_t *dn = NULL; int restarted = B_FALSE; - mutex_enter(&osi->os_obj_lock); + mutex_enter(&os->os_obj_lock); for (;;) { - object = osi->os_obj_next; + object = os->os_obj_next; /* * Each time we polish off an L2 bp worth of dnodes * (2^13 objects), move to another L2 bp that's still @@ -51,14 +49,14 @@ dmu_object_alloc(objset_t *os, dmu_object_type_t ot, int blocksize, */ if (P2PHASE(object, L2_dnode_count) == 0) { uint64_t offset = restarted ? object << DNODE_SHIFT : 0; - int error = dnode_next_offset(osi->os_meta_dnode, + int error = dnode_next_offset(os->os_meta_dnode, DNODE_FIND_HOLE, &offset, 2, DNODES_PER_BLOCK >> 2, 0); restarted = B_TRUE; if (error == 0) object = offset >> DNODE_SHIFT; } - osi->os_obj_next = ++object; + os->os_obj_next = ++object; /* * XXX We should check for an i/o error here and return @@ -66,19 +64,19 @@ dmu_object_alloc(objset_t *os, dmu_object_type_t ot, int blocksize, * dmu_tx_assign(), but there is currently no mechanism * to do so. */ - (void) dnode_hold_impl(os->os, object, DNODE_MUST_BE_FREE, + (void) dnode_hold_impl(os, object, DNODE_MUST_BE_FREE, FTAG, &dn); if (dn) break; if (dmu_object_next(os, &object, B_TRUE, 0) == 0) - osi->os_obj_next = object - 1; + os->os_obj_next = object - 1; } dnode_allocate(dn, ot, blocksize, 0, bonustype, bonuslen, tx); dnode_rele(dn, FTAG); - mutex_exit(&osi->os_obj_lock); + mutex_exit(&os->os_obj_lock); dmu_tx_add_new_object(tx, os, object); return (object); @@ -94,7 +92,7 @@ dmu_object_claim(objset_t *os, uint64_t object, dmu_object_type_t ot, if (object == DMU_META_DNODE_OBJECT && !dmu_tx_private_ok(tx)) return (EBADF); - err = dnode_hold_impl(os->os, object, DNODE_MUST_BE_FREE, FTAG, &dn); + err = dnode_hold_impl(os, object, DNODE_MUST_BE_FREE, FTAG, &dn); if (err) return (err); dnode_allocate(dn, ot, blocksize, 0, bonustype, bonuslen, tx); @@ -116,7 +114,7 @@ dmu_object_reclaim(objset_t *os, uint64_t object, dmu_object_type_t ot, if (object == DMU_META_DNODE_OBJECT) return (EBADF); - err = dnode_hold_impl(os->os, object, DNODE_MUST_BE_ALLOCATED, + err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, FTAG, &dn); if (err) return (err); @@ -128,7 +126,11 @@ dmu_object_reclaim(objset_t *os, uint64_t object, dmu_object_type_t ot, return (0); } - nblkptr = 1 + ((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT); + if (bonustype == DMU_OT_SA) { + nblkptr = 1; + } else { + nblkptr = 1 + ((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT); + } /* * If we are losing blkptrs or changing the block size this must @@ -166,7 +168,7 @@ dmu_object_free(objset_t *os, uint64_t object, dmu_tx_t *tx) ASSERT(object != DMU_META_DNODE_OBJECT || dmu_tx_private_ok(tx)); - err = dnode_hold_impl(os->os, object, DNODE_MUST_BE_ALLOCATED, + err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, FTAG, &dn); if (err) return (err); @@ -185,7 +187,7 @@ dmu_object_next(objset_t *os, uint64_t *objectp, boolean_t hole, uint64_t txg) uint64_t offset = (*objectp + 1) << DNODE_SHIFT; int error; - error = dnode_next_offset(os->os->os_meta_dnode, + error = dnode_next_offset(os->os_meta_dnode, (hole ? DNODE_FIND_HOLE : 0), &offset, 0, DNODES_PER_BLOCK, txg); *objectp = offset >> DNODE_SHIFT; diff --git a/module/zfs/dmu_objset.c b/module/zfs/dmu_objset.c index 5a9d25b77..690e6ecde 100644 --- a/module/zfs/dmu_objset.c +++ b/module/zfs/dmu_objset.c @@ -19,10 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #include <sys/cred.h> #include <sys/zfs_context.h> #include <sys/dmu_objset.h> @@ -36,22 +37,23 @@ #include <sys/dbuf.h> #include <sys/zvol.h> #include <sys/dmu_tx.h> -#include <sys/zio_checksum.h> #include <sys/zap.h> #include <sys/zil.h> #include <sys/dmu_impl.h> #include <sys/zfs_ioctl.h> +#include <sys/sunddi.h> +#include <sys/sa.h> spa_t * dmu_objset_spa(objset_t *os) { - return (os->os->os_spa); + return (os->os_spa); } zilog_t * dmu_objset_zil(objset_t *os) { - return (os->os->os_zil); + return (os->os_zil); } dsl_pool_t * @@ -59,82 +61,112 @@ dmu_objset_pool(objset_t *os) { dsl_dataset_t *ds; - if ((ds = os->os->os_dsl_dataset) != NULL && ds->ds_dir) + if ((ds = os->os_dsl_dataset) != NULL && ds->ds_dir) return (ds->ds_dir->dd_pool); else - return (spa_get_dsl(os->os->os_spa)); + return (spa_get_dsl(os->os_spa)); } dsl_dataset_t * dmu_objset_ds(objset_t *os) { - return (os->os->os_dsl_dataset); + return (os->os_dsl_dataset); } dmu_objset_type_t dmu_objset_type(objset_t *os) { - return (os->os->os_phys->os_type); + return (os->os_phys->os_type); } void dmu_objset_name(objset_t *os, char *buf) { - dsl_dataset_name(os->os->os_dsl_dataset, buf); + dsl_dataset_name(os->os_dsl_dataset, buf); } uint64_t dmu_objset_id(objset_t *os) { - dsl_dataset_t *ds = os->os->os_dsl_dataset; + dsl_dataset_t *ds = os->os_dsl_dataset; return (ds ? ds->ds_object : 0); } +uint64_t +dmu_objset_syncprop(objset_t *os) +{ + return (os->os_sync); +} + +uint64_t +dmu_objset_logbias(objset_t *os) +{ + return (os->os_logbias); +} + static void checksum_changed_cb(void *arg, uint64_t newval) { - objset_impl_t *osi = arg; + objset_t *os = arg; /* * Inheritance should have been done by now. */ ASSERT(newval != ZIO_CHECKSUM_INHERIT); - osi->os_checksum = zio_checksum_select(newval, ZIO_CHECKSUM_ON_VALUE); + os->os_checksum = zio_checksum_select(newval, ZIO_CHECKSUM_ON_VALUE); } static void compression_changed_cb(void *arg, uint64_t newval) { - objset_impl_t *osi = arg; + objset_t *os = arg; /* * Inheritance and range checking should have been done by now. */ ASSERT(newval != ZIO_COMPRESS_INHERIT); - osi->os_compress = zio_compress_select(newval, ZIO_COMPRESS_ON_VALUE); + os->os_compress = zio_compress_select(newval, ZIO_COMPRESS_ON_VALUE); } static void copies_changed_cb(void *arg, uint64_t newval) { - objset_impl_t *osi = arg; + objset_t *os = arg; /* * Inheritance and range checking should have been done by now. */ ASSERT(newval > 0); - ASSERT(newval <= spa_max_replication(osi->os_spa)); + ASSERT(newval <= spa_max_replication(os->os_spa)); - osi->os_copies = newval; + os->os_copies = newval; +} + +static void +dedup_changed_cb(void *arg, uint64_t newval) +{ + objset_t *os = arg; + spa_t *spa = os->os_spa; + enum zio_checksum checksum; + + /* + * Inheritance should have been done by now. + */ + ASSERT(newval != ZIO_CHECKSUM_INHERIT); + + checksum = zio_checksum_dedup_select(spa, newval, ZIO_CHECKSUM_OFF); + + os->os_dedup_checksum = checksum & ZIO_CHECKSUM_MASK; + os->os_dedup_verify = !!(checksum & ZIO_CHECKSUM_VERIFY); } static void primary_cache_changed_cb(void *arg, uint64_t newval) { - objset_impl_t *osi = arg; + objset_t *os = arg; /* * Inheritance and range checking should have been done by now. @@ -142,13 +174,13 @@ primary_cache_changed_cb(void *arg, uint64_t newval) ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE || newval == ZFS_CACHE_METADATA); - osi->os_primary_cache = newval; + os->os_primary_cache = newval; } static void secondary_cache_changed_cb(void *arg, uint64_t newval) { - objset_impl_t *osi = arg; + objset_t *os = arg; /* * Inheritance and range checking should have been done by now. @@ -156,7 +188,35 @@ secondary_cache_changed_cb(void *arg, uint64_t newval) ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE || newval == ZFS_CACHE_METADATA); - osi->os_secondary_cache = newval; + os->os_secondary_cache = newval; +} + +static void +sync_changed_cb(void *arg, uint64_t newval) +{ + objset_t *os = arg; + + /* + * Inheritance and range checking should have been done by now. + */ + ASSERT(newval == ZFS_SYNC_STANDARD || newval == ZFS_SYNC_ALWAYS || + newval == ZFS_SYNC_DISABLED); + + os->os_sync = newval; + if (os->os_zil) + zil_set_sync(os->os_zil, newval); +} + +static void +logbias_changed_cb(void *arg, uint64_t newval) +{ + objset_t *os = arg; + + ASSERT(newval == ZFS_LOGBIAS_LATENCY || + newval == ZFS_LOGBIAS_THROUGHPUT); + os->os_logbias = newval; + if (os->os_zil) + zil_set_logbias(os->os_zil, newval); } void @@ -177,39 +237,37 @@ dmu_objset_byteswap(void *buf, size_t size) int dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, - objset_impl_t **osip) + objset_t **osp) { - objset_impl_t *osi; + objset_t *os; int i, err; ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock)); - osi = kmem_zalloc(sizeof (objset_impl_t), KM_SLEEP); - osi->os.os = osi; - osi->os_dsl_dataset = ds; - osi->os_spa = spa; - osi->os_rootbp = bp; - if (!BP_IS_HOLE(osi->os_rootbp)) { + os = kmem_zalloc(sizeof (objset_t), KM_SLEEP); + os->os_dsl_dataset = ds; + os->os_spa = spa; + os->os_rootbp = bp; + if (!BP_IS_HOLE(os->os_rootbp)) { uint32_t aflags = ARC_WAIT; zbookmark_t zb; - zb.zb_objset = ds ? ds->ds_object : 0; - zb.zb_object = 0; - zb.zb_level = -1; - zb.zb_blkid = 0; - if (DMU_OS_IS_L2CACHEABLE(osi)) + SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET, + ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); + + if (DMU_OS_IS_L2CACHEABLE(os)) aflags |= ARC_L2CACHE; - dprintf_bp(osi->os_rootbp, "reading %s", ""); + dprintf_bp(os->os_rootbp, "reading %s", ""); /* - * NB: when bprewrite scrub can change the bp, + * XXX when bprewrite scrub can change the bp, * and this is called from dmu_objset_open_ds_os, the bp * could change, and we'll need a lock. */ - err = arc_read_nolock(NULL, spa, osi->os_rootbp, - arc_getbuf_func, &osi->os_phys_buf, + err = dsl_read_nolock(NULL, spa, os->os_rootbp, + arc_getbuf_func, &os->os_phys_buf, ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &aflags, &zb); if (err) { - kmem_free(osi, sizeof (objset_impl_t)); + kmem_free(os, sizeof (objset_t)); /* convert checksum errors into IO errors */ if (err == ECKSUM) err = EIO; @@ -218,27 +276,27 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, /* Increase the blocksize if we are permitted. */ if (spa_version(spa) >= SPA_VERSION_USERSPACE && - arc_buf_size(osi->os_phys_buf) < sizeof (objset_phys_t)) { + arc_buf_size(os->os_phys_buf) < sizeof (objset_phys_t)) { arc_buf_t *buf = arc_buf_alloc(spa, - sizeof (objset_phys_t), &osi->os_phys_buf, + sizeof (objset_phys_t), &os->os_phys_buf, ARC_BUFC_METADATA); bzero(buf->b_data, sizeof (objset_phys_t)); - bcopy(osi->os_phys_buf->b_data, buf->b_data, - arc_buf_size(osi->os_phys_buf)); - (void) arc_buf_remove_ref(osi->os_phys_buf, - &osi->os_phys_buf); - osi->os_phys_buf = buf; + bcopy(os->os_phys_buf->b_data, buf->b_data, + arc_buf_size(os->os_phys_buf)); + (void) arc_buf_remove_ref(os->os_phys_buf, + &os->os_phys_buf); + os->os_phys_buf = buf; } - osi->os_phys = osi->os_phys_buf->b_data; - osi->os_flags = osi->os_phys->os_flags; + os->os_phys = os->os_phys_buf->b_data; + os->os_flags = os->os_phys->os_flags; } else { int size = spa_version(spa) >= SPA_VERSION_USERSPACE ? sizeof (objset_phys_t) : OBJSET_OLD_PHYS_SIZE; - osi->os_phys_buf = arc_buf_alloc(spa, size, - &osi->os_phys_buf, ARC_BUFC_METADATA); - osi->os_phys = osi->os_phys_buf->b_data; - bzero(osi->os_phys, size); + os->os_phys_buf = arc_buf_alloc(spa, size, + &os->os_phys_buf, ARC_BUFC_METADATA); + os->os_phys = os->os_phys_buf->b_data; + bzero(os->os_phys, size); } /* @@ -249,61 +307,74 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, */ if (ds) { err = dsl_prop_register(ds, "primarycache", - primary_cache_changed_cb, osi); + primary_cache_changed_cb, os); if (err == 0) err = dsl_prop_register(ds, "secondarycache", - secondary_cache_changed_cb, osi); + secondary_cache_changed_cb, os); if (!dsl_dataset_is_snapshot(ds)) { if (err == 0) err = dsl_prop_register(ds, "checksum", - checksum_changed_cb, osi); + checksum_changed_cb, os); if (err == 0) err = dsl_prop_register(ds, "compression", - compression_changed_cb, osi); + compression_changed_cb, os); if (err == 0) err = dsl_prop_register(ds, "copies", - copies_changed_cb, osi); + copies_changed_cb, os); + if (err == 0) + err = dsl_prop_register(ds, "dedup", + dedup_changed_cb, os); + if (err == 0) + err = dsl_prop_register(ds, "logbias", + logbias_changed_cb, os); + if (err == 0) + err = dsl_prop_register(ds, "sync", + sync_changed_cb, os); } if (err) { - VERIFY(arc_buf_remove_ref(osi->os_phys_buf, - &osi->os_phys_buf) == 1); - kmem_free(osi, sizeof (objset_impl_t)); + VERIFY(arc_buf_remove_ref(os->os_phys_buf, + &os->os_phys_buf) == 1); + kmem_free(os, sizeof (objset_t)); return (err); } } else if (ds == NULL) { /* It's the meta-objset. */ - osi->os_checksum = ZIO_CHECKSUM_FLETCHER_4; - osi->os_compress = ZIO_COMPRESS_LZJB; - osi->os_copies = spa_max_replication(spa); - osi->os_primary_cache = ZFS_CACHE_ALL; - osi->os_secondary_cache = ZFS_CACHE_ALL; + os->os_checksum = ZIO_CHECKSUM_FLETCHER_4; + os->os_compress = ZIO_COMPRESS_LZJB; + os->os_copies = spa_max_replication(spa); + os->os_dedup_checksum = ZIO_CHECKSUM_OFF; + os->os_dedup_verify = 0; + os->os_logbias = 0; + os->os_sync = 0; + os->os_primary_cache = ZFS_CACHE_ALL; + os->os_secondary_cache = ZFS_CACHE_ALL; } - osi->os_zil_header = osi->os_phys->os_zil_header; - osi->os_zil = zil_alloc(&osi->os, &osi->os_zil_header); + os->os_zil_header = os->os_phys->os_zil_header; + os->os_zil = zil_alloc(os, &os->os_zil_header); for (i = 0; i < TXG_SIZE; i++) { - list_create(&osi->os_dirty_dnodes[i], sizeof (dnode_t), + list_create(&os->os_dirty_dnodes[i], sizeof (dnode_t), offsetof(dnode_t, dn_dirty_link[i])); - list_create(&osi->os_free_dnodes[i], sizeof (dnode_t), + list_create(&os->os_free_dnodes[i], sizeof (dnode_t), offsetof(dnode_t, dn_dirty_link[i])); } - list_create(&osi->os_dnodes, sizeof (dnode_t), + list_create(&os->os_dnodes, sizeof (dnode_t), offsetof(dnode_t, dn_link)); - list_create(&osi->os_downgraded_dbufs, sizeof (dmu_buf_impl_t), + list_create(&os->os_downgraded_dbufs, sizeof (dmu_buf_impl_t), offsetof(dmu_buf_impl_t, db_link)); - mutex_init(&osi->os_lock, NULL, MUTEX_DEFAULT, NULL); - mutex_init(&osi->os_obj_lock, NULL, MUTEX_DEFAULT, NULL); - mutex_init(&osi->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL); - - osi->os_meta_dnode = dnode_special_open(osi, - &osi->os_phys->os_meta_dnode, DMU_META_DNODE_OBJECT); - if (arc_buf_size(osi->os_phys_buf) >= sizeof (objset_phys_t)) { - osi->os_userused_dnode = dnode_special_open(osi, - &osi->os_phys->os_userused_dnode, DMU_USERUSED_OBJECT); - osi->os_groupused_dnode = dnode_special_open(osi, - &osi->os_phys->os_groupused_dnode, DMU_GROUPUSED_OBJECT); + mutex_init(&os->os_lock, NULL, MUTEX_DEFAULT, NULL); + mutex_init(&os->os_obj_lock, NULL, MUTEX_DEFAULT, NULL); + mutex_init(&os->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL); + + os->os_meta_dnode = dnode_special_open(os, + &os->os_phys->os_meta_dnode, DMU_META_DNODE_OBJECT); + if (arc_buf_size(os->os_phys_buf) >= sizeof (objset_phys_t)) { + os->os_userused_dnode = dnode_special_open(os, + &os->os_phys->os_userused_dnode, DMU_USERUSED_OBJECT); + os->os_groupused_dnode = dnode_special_open(os, + &os->os_phys->os_groupused_dnode, DMU_GROUPUSED_OBJECT); } /* @@ -311,117 +382,96 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, * have ds_opening_lock */ if (ds) { - VERIFY(NULL == dsl_dataset_set_user_ptr(ds, osi, - dmu_objset_evict)); + mutex_enter(&ds->ds_lock); + ASSERT(ds->ds_objset == NULL); + ds->ds_objset = os; + mutex_exit(&ds->ds_lock); } - *osip = osi; + *osp = os; return (0); } -static int -dmu_objset_open_ds_os(dsl_dataset_t *ds, objset_t *os, dmu_objset_type_t type) +int +dmu_objset_from_ds(dsl_dataset_t *ds, objset_t **osp) { - objset_impl_t *osi; + int err = 0; mutex_enter(&ds->ds_opening_lock); - osi = dsl_dataset_get_user_ptr(ds); - if (osi == NULL) { - int err; - + *osp = ds->ds_objset; + if (*osp == NULL) { err = dmu_objset_open_impl(dsl_dataset_get_spa(ds), - ds, &ds->ds_phys->ds_bp, &osi); - if (err) { - mutex_exit(&ds->ds_opening_lock); - return (err); - } + ds, &ds->ds_phys->ds_bp, osp); } mutex_exit(&ds->ds_opening_lock); - - os->os = osi; - os->os_mode = DS_MODE_NOHOLD; - - if (type != DMU_OST_ANY && type != os->os->os_phys->os_type) - return (EINVAL); - return (0); + return (err); } +/* called from zpl */ int -dmu_objset_open_ds(dsl_dataset_t *ds, dmu_objset_type_t type, objset_t **osp) +dmu_objset_hold(const char *name, void *tag, objset_t **osp) { - objset_t *os; + dsl_dataset_t *ds; int err; - os = kmem_alloc(sizeof (objset_t), KM_SLEEP); - err = dmu_objset_open_ds_os(ds, os, type); + err = dsl_dataset_hold(name, tag, &ds); if (err) - kmem_free(os, sizeof (objset_t)); - else - *osp = os; + return (err); + + err = dmu_objset_from_ds(ds, osp); + if (err) + dsl_dataset_rele(ds, tag); + return (err); } /* called from zpl */ int -dmu_objset_open(const char *name, dmu_objset_type_t type, int mode, - objset_t **osp) +dmu_objset_own(const char *name, dmu_objset_type_t type, + boolean_t readonly, void *tag, objset_t **osp) { - objset_t *os; dsl_dataset_t *ds; int err; - ASSERT(DS_MODE_TYPE(mode) == DS_MODE_USER || - DS_MODE_TYPE(mode) == DS_MODE_OWNER); - - os = kmem_alloc(sizeof (objset_t), KM_SLEEP); - if (DS_MODE_TYPE(mode) == DS_MODE_USER) - err = dsl_dataset_hold(name, os, &ds); - else - err = dsl_dataset_own(name, mode, os, &ds); - if (err) { - kmem_free(os, sizeof (objset_t)); + err = dsl_dataset_own(name, B_FALSE, tag, &ds); + if (err) return (err); - } - err = dmu_objset_open_ds_os(ds, os, type); + err = dmu_objset_from_ds(ds, osp); if (err) { - if (DS_MODE_TYPE(mode) == DS_MODE_USER) - dsl_dataset_rele(ds, os); - else - dsl_dataset_disown(ds, os); - kmem_free(os, sizeof (objset_t)); - } else { - os->os_mode = mode; - *osp = os; + dsl_dataset_disown(ds, tag); + } else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) { + dmu_objset_disown(*osp, tag); + return (EINVAL); + } else if (!readonly && dsl_dataset_is_snapshot(ds)) { + dmu_objset_disown(*osp, tag); + return (EROFS); } return (err); } void -dmu_objset_close(objset_t *os) +dmu_objset_rele(objset_t *os, void *tag) { - ASSERT(DS_MODE_TYPE(os->os_mode) == DS_MODE_USER || - DS_MODE_TYPE(os->os_mode) == DS_MODE_OWNER || - DS_MODE_TYPE(os->os_mode) == DS_MODE_NOHOLD); + dsl_dataset_rele(os->os_dsl_dataset, tag); +} - if (DS_MODE_TYPE(os->os_mode) == DS_MODE_USER) - dsl_dataset_rele(os->os->os_dsl_dataset, os); - else if (DS_MODE_TYPE(os->os_mode) == DS_MODE_OWNER) - dsl_dataset_disown(os->os->os_dsl_dataset, os); - kmem_free(os, sizeof (objset_t)); +void +dmu_objset_disown(objset_t *os, void *tag) +{ + dsl_dataset_disown(os->os_dsl_dataset, tag); } int dmu_objset_evict_dbufs(objset_t *os) { - objset_impl_t *osi = os->os; dnode_t *dn; - mutex_enter(&osi->os_lock); + mutex_enter(&os->os_lock); /* process the mdn last, since the other dnodes have holds on it */ - list_remove(&osi->os_dnodes, osi->os_meta_dnode); - list_insert_tail(&osi->os_dnodes, osi->os_meta_dnode); + list_remove(&os->os_dnodes, os->os_meta_dnode); + list_insert_tail(&os->os_dnodes, os->os_meta_dnode); /* * Find the first dnode with holds. We have to do this dance @@ -429,93 +479,103 @@ dmu_objset_evict_dbufs(objset_t *os) * hold. If there are no holds then it has no dbufs so OK to * skip. */ - for (dn = list_head(&osi->os_dnodes); + for (dn = list_head(&os->os_dnodes); dn && !dnode_add_ref(dn, FTAG); - dn = list_next(&osi->os_dnodes, dn)) + dn = list_next(&os->os_dnodes, dn)) continue; while (dn) { dnode_t *next_dn = dn; do { - next_dn = list_next(&osi->os_dnodes, next_dn); + next_dn = list_next(&os->os_dnodes, next_dn); } while (next_dn && !dnode_add_ref(next_dn, FTAG)); - mutex_exit(&osi->os_lock); + mutex_exit(&os->os_lock); dnode_evict_dbufs(dn); dnode_rele(dn, FTAG); - mutex_enter(&osi->os_lock); + mutex_enter(&os->os_lock); dn = next_dn; } - mutex_exit(&osi->os_lock); - return (list_head(&osi->os_dnodes) != osi->os_meta_dnode); + mutex_exit(&os->os_lock); + return (list_head(&os->os_dnodes) != os->os_meta_dnode); } void -dmu_objset_evict(dsl_dataset_t *ds, void *arg) +dmu_objset_evict(objset_t *os) { - objset_impl_t *osi = arg; - objset_t os; - int i; + dsl_dataset_t *ds = os->os_dsl_dataset; - for (i = 0; i < TXG_SIZE; i++) { - ASSERT(list_head(&osi->os_dirty_dnodes[i]) == NULL); - ASSERT(list_head(&osi->os_free_dnodes[i]) == NULL); - } + for (int t = 0; t < TXG_SIZE; t++) + ASSERT(!dmu_objset_is_dirty(os, t)); if (ds) { if (!dsl_dataset_is_snapshot(ds)) { VERIFY(0 == dsl_prop_unregister(ds, "checksum", - checksum_changed_cb, osi)); + checksum_changed_cb, os)); VERIFY(0 == dsl_prop_unregister(ds, "compression", - compression_changed_cb, osi)); + compression_changed_cb, os)); VERIFY(0 == dsl_prop_unregister(ds, "copies", - copies_changed_cb, osi)); + copies_changed_cb, os)); + VERIFY(0 == dsl_prop_unregister(ds, "dedup", + dedup_changed_cb, os)); + VERIFY(0 == dsl_prop_unregister(ds, "logbias", + logbias_changed_cb, os)); + VERIFY(0 == dsl_prop_unregister(ds, "sync", + sync_changed_cb, os)); } VERIFY(0 == dsl_prop_unregister(ds, "primarycache", - primary_cache_changed_cb, osi)); + primary_cache_changed_cb, os)); VERIFY(0 == dsl_prop_unregister(ds, "secondarycache", - secondary_cache_changed_cb, osi)); + secondary_cache_changed_cb, os)); } + if (os->os_sa) + sa_tear_down(os); + /* * We should need only a single pass over the dnode list, since * nothing can be added to the list at this point. */ - os.os = osi; - (void) dmu_objset_evict_dbufs(&os); + (void) dmu_objset_evict_dbufs(os); - dnode_special_close(osi->os_meta_dnode); - if (osi->os_userused_dnode) { - dnode_special_close(osi->os_userused_dnode); - dnode_special_close(osi->os_groupused_dnode); + dnode_special_close(os->os_meta_dnode); + if (os->os_userused_dnode) { + dnode_special_close(os->os_userused_dnode); + dnode_special_close(os->os_groupused_dnode); } - zil_free(osi->os_zil); + zil_free(os->os_zil); + + ASSERT3P(list_head(&os->os_dnodes), ==, NULL); - ASSERT3P(list_head(&osi->os_dnodes), ==, NULL); + VERIFY(arc_buf_remove_ref(os->os_phys_buf, &os->os_phys_buf) == 1); + mutex_destroy(&os->os_lock); + mutex_destroy(&os->os_obj_lock); + mutex_destroy(&os->os_user_ptr_lock); + kmem_free(os, sizeof (objset_t)); +} - VERIFY(arc_buf_remove_ref(osi->os_phys_buf, &osi->os_phys_buf) == 1); - mutex_destroy(&osi->os_lock); - mutex_destroy(&osi->os_obj_lock); - mutex_destroy(&osi->os_user_ptr_lock); - kmem_free(osi, sizeof (objset_impl_t)); +timestruc_t +dmu_objset_snap_cmtime(objset_t *os) +{ + return (dsl_dir_snap_cmtime(os->os_dsl_dataset->ds_dir)); } /* called from dsl for meta-objset */ -objset_impl_t * +objset_t * dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx) { - objset_impl_t *osi; + objset_t *os; dnode_t *mdn; ASSERT(dmu_tx_is_syncing(tx)); if (ds) mutex_enter(&ds->ds_opening_lock); - VERIFY(0 == dmu_objset_open_impl(spa, ds, bp, &osi)); + VERIFY(0 == dmu_objset_open_impl(spa, ds, bp, &os)); if (ds) mutex_exit(&ds->ds_opening_lock); - mdn = osi->os_meta_dnode; + mdn = os->os_meta_dnode; dnode_allocate(mdn, DMU_OT_DNODE, 1 << DNODE_BLOCK_SHIFT, DN_MAX_INDBLKSHIFT, DMU_OT_NONE, 0, tx); @@ -550,24 +610,25 @@ dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, ASSERT(type != DMU_OST_NONE); ASSERT(type != DMU_OST_ANY); ASSERT(type < DMU_OST_NUMTYPES); - osi->os_phys->os_type = type; - if (dmu_objset_userused_enabled(osi)) { - osi->os_phys->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; - osi->os_flags = osi->os_phys->os_flags; + os->os_phys->os_type = type; + if (dmu_objset_userused_enabled(os)) { + os->os_phys->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; + os->os_flags = os->os_phys->os_flags; } dsl_dataset_dirty(ds, tx); - return (osi); + return (os); } struct oscarg { void (*userfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); void *userarg; - dsl_dataset_t *clone_parent; + dsl_dataset_t *clone_origin; const char *lastname; dmu_objset_type_t type; uint64_t flags; + cred_t *cr; }; /*ARGSUSED*/ @@ -585,17 +646,13 @@ dmu_objset_create_check(void *arg1, void *arg2, dmu_tx_t *tx) if (err != ENOENT) return (err ? err : EEXIST); - if (oa->clone_parent != NULL) { - /* - * You can't clone across pools. - */ - if (oa->clone_parent->ds_dir->dd_pool != dd->dd_pool) + if (oa->clone_origin != NULL) { + /* You can't clone across pools. */ + if (oa->clone_origin->ds_dir->dd_pool != dd->dd_pool) return (EXDEV); - /* - * You can only clone snapshots, not the head datasets. - */ - if (oa->clone_parent->ds_phys->ds_num_children == 0) + /* You can only clone snapshots, not the head datasets. */ + if (!dsl_dataset_is_snapshot(oa->clone_origin)) return (EINVAL); } @@ -603,41 +660,41 @@ dmu_objset_create_check(void *arg1, void *arg2, dmu_tx_t *tx) } static void -dmu_objset_create_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dmu_objset_create_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dir_t *dd = arg1; struct oscarg *oa = arg2; - dsl_dataset_t *ds; - blkptr_t *bp; uint64_t dsobj; ASSERT(dmu_tx_is_syncing(tx)); dsobj = dsl_dataset_create_sync(dd, oa->lastname, - oa->clone_parent, oa->flags, cr, tx); + oa->clone_origin, oa->flags, oa->cr, tx); - VERIFY(0 == dsl_dataset_hold_obj(dd->dd_pool, dsobj, FTAG, &ds)); - bp = dsl_dataset_get_blkptr(ds); - if (BP_IS_HOLE(bp)) { - objset_impl_t *osi; + if (oa->clone_origin == NULL) { + dsl_dataset_t *ds; + blkptr_t *bp; + objset_t *os; - /* This is an empty dmu_objset; not a clone. */ - osi = dmu_objset_create_impl(dsl_dataset_get_spa(ds), + VERIFY(0 == dsl_dataset_hold_obj(dd->dd_pool, dsobj, + FTAG, &ds)); + bp = dsl_dataset_get_blkptr(ds); + ASSERT(BP_IS_HOLE(bp)); + + os = dmu_objset_create_impl(dsl_dataset_get_spa(ds), ds, bp, oa->type, tx); if (oa->userfunc) - oa->userfunc(&osi->os, oa->userarg, cr, tx); + oa->userfunc(os, oa->userarg, oa->cr, tx); + dsl_dataset_rele(ds, FTAG); } - spa_history_internal_log(LOG_DS_CREATE, dd->dd_pool->dp_spa, - tx, cr, "dataset = %llu", dsobj); - - dsl_dataset_rele(ds, FTAG); + spa_history_log_internal(LOG_DS_CREATE, dd->dd_pool->dp_spa, + tx, "dataset = %llu", dsobj); } int -dmu_objset_create(const char *name, dmu_objset_type_t type, - objset_t *clone_parent, uint64_t flags, +dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags, void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg) { dsl_dir_t *pdd; @@ -654,24 +711,13 @@ dmu_objset_create(const char *name, dmu_objset_type_t type, return (EEXIST); } - dprintf("name=%s\n", name); - oa.userfunc = func; oa.userarg = arg; oa.lastname = tail; oa.type = type; oa.flags = flags; + oa.cr = CRED(); - if (clone_parent != NULL) { - /* - * You can't clone to a different type. - */ - if (clone_parent->os->os_phys->os_type != type) { - dsl_dir_close(pdd, FTAG); - return (EINVAL); - } - oa.clone_parent = clone_parent->os->os_dsl_dataset; - } err = dsl_sync_task_do(pdd->dd_pool, dmu_objset_create_check, dmu_objset_create_sync, pdd, &oa, 5); dsl_dir_close(pdd, FTAG); @@ -679,66 +725,63 @@ dmu_objset_create(const char *name, dmu_objset_type_t type, } int -dmu_objset_destroy(const char *name, boolean_t defer) +dmu_objset_clone(const char *name, dsl_dataset_t *clone_origin, uint64_t flags) { - objset_t *os; - int error; - - /* - * If it looks like we'll be able to destroy it, and there's - * an unplayed replay log sitting around, destroy the log. - * It would be nicer to do this in dsl_dataset_destroy_sync(), - * but the replay log objset is modified in open context. - */ - error = dmu_objset_open(name, DMU_OST_ANY, - DS_MODE_OWNER|DS_MODE_READONLY|DS_MODE_INCONSISTENT, &os); - if (error == 0) { - dsl_dataset_t *ds = os->os->os_dsl_dataset; - zil_destroy(dmu_objset_zil(os), B_FALSE); + dsl_dir_t *pdd; + const char *tail; + int err = 0; + struct oscarg oa = { 0 }; - error = dsl_dataset_destroy(ds, os, defer); - /* - * dsl_dataset_destroy() closes the ds. - */ - kmem_free(os, sizeof (objset_t)); + ASSERT(strchr(name, '@') == NULL); + err = dsl_dir_open(name, FTAG, &pdd, &tail); + if (err) + return (err); + if (tail == NULL) { + dsl_dir_close(pdd, FTAG); + return (EEXIST); } - return (error); + oa.lastname = tail; + oa.clone_origin = clone_origin; + oa.flags = flags; + oa.cr = CRED(); + + err = dsl_sync_task_do(pdd->dd_pool, dmu_objset_create_check, + dmu_objset_create_sync, pdd, &oa, 5); + dsl_dir_close(pdd, FTAG); + return (err); } -/* - * This will close the objset. - */ int -dmu_objset_rollback(objset_t *os) +dmu_objset_destroy(const char *name, boolean_t defer) { - int err; dsl_dataset_t *ds; - - ds = os->os->os_dsl_dataset; - - if (!dsl_dataset_tryown(ds, TRUE, os)) { - dmu_objset_close(os); - return (EBUSY); - } - - err = dsl_dataset_rollback(ds, os->os->os_phys->os_type); + int error; /* - * NB: we close the objset manually because the rollback - * actually implicitly called dmu_objset_evict(), thus freeing - * the objset_impl_t. + * dsl_dataset_destroy() can free any claimed-but-unplayed + * intent log, but if there is an active log, it has blocks that + * are allocated, but may not yet be reflected in the on-disk + * structure. Only the ZIL knows how to free them, so we have + * to call into it here. */ - dsl_dataset_disown(ds, os); - kmem_free(os, sizeof (objset_t)); - return (err); + error = dsl_dataset_own(name, B_TRUE, FTAG, &ds); + if (error == 0) { + objset_t *os; + if (dmu_objset_from_ds(ds, &os) == 0) + zil_destroy(dmu_objset_zil(os), B_FALSE); + error = dsl_dataset_destroy(ds, FTAG, defer); + /* dsl_dataset_destroy() closes the ds. */ + } + + return (error); } struct snaparg { dsl_sync_task_group_t *dstg; char *snapname; char failed[MAXPATHLEN]; - boolean_t checkperms; + boolean_t recursive; nvlist_t *props; }; @@ -750,49 +793,68 @@ snapshot_check(void *arg1, void *arg2, dmu_tx_t *tx) /* The props have already been checked by zfs_check_userprops(). */ - return (dsl_dataset_snapshot_check(os->os->os_dsl_dataset, + return (dsl_dataset_snapshot_check(os->os_dsl_dataset, sn->snapname, tx)); } static void -snapshot_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +snapshot_sync(void *arg1, void *arg2, dmu_tx_t *tx) { objset_t *os = arg1; - dsl_dataset_t *ds = os->os->os_dsl_dataset; + dsl_dataset_t *ds = os->os_dsl_dataset; struct snaparg *sn = arg2; - dsl_dataset_snapshot_sync(ds, sn->snapname, cr, tx); + dsl_dataset_snapshot_sync(ds, sn->snapname, tx); - if (sn->props) - dsl_props_set_sync(ds->ds_prev, sn->props, cr, tx); + if (sn->props) { + dsl_props_arg_t pa; + pa.pa_props = sn->props; + pa.pa_source = ZPROP_SRC_LOCAL; + dsl_props_set_sync(ds->ds_prev, &pa, tx); + } } static int -dmu_objset_snapshot_one(char *name, void *arg) +dmu_objset_snapshot_one(const char *name, void *arg) { struct snaparg *sn = arg; objset_t *os; int err; + char *cp; + + /* + * If the objset starts with a '%', then ignore it unless it was + * explicitly named (ie, not recursive). These hidden datasets + * are always inconsistent, and by not opening them here, we can + * avoid a race with dsl_dir_destroy_check(). + */ + cp = strrchr(name, '/'); + if (cp && cp[1] == '%' && sn->recursive) + return (0); (void) strcpy(sn->failed, name); /* - * Check permissions only when requested. This only applies when - * doing a recursive snapshot. The permission checks for the starting - * dataset have already been performed in zfs_secpolicy_snapshot() + * Check permissions if we are doing a recursive snapshot. The + * permission checks for the starting dataset have already been + * performed in zfs_secpolicy_snapshot() */ - if (sn->checkperms == B_TRUE && - (err = zfs_secpolicy_snapshot_perms(name, CRED()))) + if (sn->recursive && (err = zfs_secpolicy_snapshot_perms(name, CRED()))) return (err); - err = dmu_objset_open(name, DMU_OST_ANY, DS_MODE_USER, &os); + err = dmu_objset_hold(name, sn, &os); if (err != 0) return (err); - /* If the objset is in an inconsistent state, return busy */ - if (os->os->os_dsl_dataset->ds_phys->ds_flags & DS_FLAG_INCONSISTENT) { - dmu_objset_close(os); - return (EBUSY); + /* + * If the objset is in an inconsistent state (eg, in the process + * of being destroyed), don't snapshot it. As with %hidden + * datasets, we return EBUSY if this name was explicitly + * requested (ie, not recursive), and otherwise ignore it. + */ + if (os->os_dsl_dataset->ds_phys->ds_flags & DS_FLAG_INCONSISTENT) { + dmu_objset_rele(os, sn); + return (sn->recursive ? 0 : EBUSY); } /* @@ -805,7 +867,7 @@ dmu_objset_snapshot_one(char *name, void *arg) dsl_sync_task_create(sn->dstg, snapshot_check, snapshot_sync, os, sn, 3); } else { - dmu_objset_close(os); + dmu_objset_rele(os, sn); } return (err); @@ -829,13 +891,12 @@ dmu_objset_snapshot(char *fsname, char *snapname, sn.dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); sn.snapname = snapname; sn.props = props; + sn.recursive = recursive; if (recursive) { - sn.checkperms = B_TRUE; err = dmu_objset_find(fsname, dmu_objset_snapshot_one, &sn, DS_FIND_CHILDREN); } else { - sn.checkperms = B_FALSE; err = dmu_objset_snapshot_one(fsname, &sn); } @@ -845,11 +906,11 @@ dmu_objset_snapshot(char *fsname, char *snapname, for (dst = list_head(&sn.dstg->dstg_tasks); dst; dst = list_next(&sn.dstg->dstg_tasks, dst)) { objset_t *os = dst->dst_arg1; - dsl_dataset_t *ds = os->os->os_dsl_dataset; + dsl_dataset_t *ds = os->os_dsl_dataset; if (dst->dst_err) dsl_dataset_name(ds, sn.failed); zil_resume(dmu_objset_zil(os)); - dmu_objset_close(os); + dmu_objset_rele(os, &sn); } if (err) @@ -888,11 +949,10 @@ dmu_objset_sync_dnodes(list_t *list, list_t *newlist, dmu_tx_t *tx) /* ARGSUSED */ static void -ready(zio_t *zio, arc_buf_t *abuf, void *arg) +dmu_objset_write_ready(zio_t *zio, arc_buf_t *abuf, void *arg) { blkptr_t *bp = zio->io_bp; - blkptr_t *bp_orig = &zio->io_bp_orig; - objset_impl_t *os = arg; + objset_t *os = arg; dnode_phys_t *dnp = &os->os_phys->os_meta_dnode; ASSERT(bp == os->os_rootbp); @@ -908,24 +968,34 @@ ready(zio_t *zio, arc_buf_t *abuf, void *arg) bp->blk_fill = 0; for (int i = 0; i < dnp->dn_nblkptr; i++) bp->blk_fill += dnp->dn_blkptr[i].blk_fill; +} + +/* ARGSUSED */ +static void +dmu_objset_write_done(zio_t *zio, arc_buf_t *abuf, void *arg) +{ + blkptr_t *bp = zio->io_bp; + blkptr_t *bp_orig = &zio->io_bp_orig; + objset_t *os = arg; if (zio->io_flags & ZIO_FLAG_IO_REWRITE) { - ASSERT(DVA_EQUAL(BP_IDENTITY(bp), BP_IDENTITY(bp_orig))); + ASSERT(BP_EQUAL(bp, bp_orig)); } else { - if (zio->io_bp_orig.blk_birth == os->os_synctx->tx_txg) - (void) dsl_dataset_block_kill(os->os_dsl_dataset, - &zio->io_bp_orig, zio, os->os_synctx); - dsl_dataset_block_born(os->os_dsl_dataset, bp, os->os_synctx); + dsl_dataset_t *ds = os->os_dsl_dataset; + dmu_tx_t *tx = os->os_synctx; + + (void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE); + dsl_dataset_block_born(ds, bp, tx); } } /* called from dsl */ void -dmu_objset_sync(objset_impl_t *os, zio_t *pio, dmu_tx_t *tx) +dmu_objset_sync(objset_t *os, zio_t *pio, dmu_tx_t *tx) { int txgoff; zbookmark_t zb; - writeprops_t wp = { 0 }; + zio_prop_t zp; zio_t *zio; list_t *list; list_t *newlist = NULL; @@ -949,26 +1019,17 @@ dmu_objset_sync(objset_impl_t *os, zio_t *pio, dmu_tx_t *tx) /* * Create the root block IO */ - zb.zb_objset = os->os_dsl_dataset ? os->os_dsl_dataset->ds_object : 0; - zb.zb_object = 0; - zb.zb_level = -1; /* for block ordering; it's level 0 on disk */ - zb.zb_blkid = 0; - - wp.wp_type = DMU_OT_OBJSET; - wp.wp_level = 0; /* on-disk BP level; see above */ - wp.wp_copies = os->os_copies; - wp.wp_oschecksum = os->os_checksum; - wp.wp_oscompress = os->os_compress; - - if (BP_IS_OLDER(os->os_rootbp, tx->tx_txg)) { - (void) dsl_dataset_block_kill(os->os_dsl_dataset, - os->os_rootbp, pio, tx); - } + SET_BOOKMARK(&zb, os->os_dsl_dataset ? + os->os_dsl_dataset->ds_object : DMU_META_OBJSET, + ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); + VERIFY3U(0, ==, arc_release_bp(os->os_phys_buf, &os->os_phys_buf, + os->os_rootbp, os->os_spa, &zb)); - arc_release(os->os_phys_buf, &os->os_phys_buf); + dmu_write_policy(os, NULL, 0, 0, &zp); - zio = arc_write(pio, os->os_spa, &wp, DMU_OS_IS_L2CACHEABLE(os), - tx->tx_txg, os->os_rootbp, os->os_phys_buf, ready, NULL, os, + zio = arc_write(pio, os->os_spa, tx->tx_txg, + os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os), &zp, + dmu_objset_write_ready, dmu_objset_write_done, os, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); /* @@ -1017,7 +1078,14 @@ dmu_objset_sync(objset_impl_t *os, zio_t *pio, dmu_tx_t *tx) zio_nowait(zio); } -static objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES]; +boolean_t +dmu_objset_is_dirty(objset_t *os, uint64_t txg) +{ + return (!list_is_empty(&os->os_dirty_dnodes[txg & TXG_MASK]) || + !list_is_empty(&os->os_free_dnodes[txg & TXG_MASK])); +} + +objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES]; void dmu_objset_register_type(dmu_objset_type_t ost, objset_used_cb_t *cb) @@ -1026,74 +1094,84 @@ dmu_objset_register_type(dmu_objset_type_t ost, objset_used_cb_t *cb) } boolean_t -dmu_objset_userused_enabled(objset_impl_t *os) +dmu_objset_userused_enabled(objset_t *os) { return (spa_version(os->os_spa) >= SPA_VERSION_USERSPACE && used_cbs[os->os_phys->os_type] && os->os_userused_dnode); } +static void +do_userquota_update(objset_t *os, uint64_t used, uint64_t flags, + uint64_t user, uint64_t group, boolean_t subtract, dmu_tx_t *tx) +{ + if ((flags & DNODE_FLAG_USERUSED_ACCOUNTED)) { + int64_t delta = DNODE_SIZE + used; + if (subtract) + delta = -delta; + VERIFY3U(0, ==, zap_increment_int(os, DMU_USERUSED_OBJECT, + user, delta, tx)); + VERIFY3U(0, ==, zap_increment_int(os, DMU_GROUPUSED_OBJECT, + group, delta, tx)); + } +} + void -dmu_objset_do_userquota_callbacks(objset_impl_t *os, dmu_tx_t *tx) +dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx) { dnode_t *dn; list_t *list = &os->os_synced_dnodes; - static const char zerobuf[DN_MAX_BONUSLEN] = {0}; ASSERT(list_head(list) == NULL || dmu_objset_userused_enabled(os)); while (dn = list_head(list)) { - dmu_object_type_t bonustype; - ASSERT(!DMU_OBJECT_IS_SPECIAL(dn->dn_object)); - ASSERT(dn->dn_oldphys); ASSERT(dn->dn_phys->dn_type == DMU_OT_NONE || dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED); /* Allocate the user/groupused objects if necessary. */ if (os->os_userused_dnode->dn_type == DMU_OT_NONE) { - VERIFY(0 == zap_create_claim(&os->os, + VERIFY(0 == zap_create_claim(os, DMU_USERUSED_OBJECT, DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx)); - VERIFY(0 == zap_create_claim(&os->os, + VERIFY(0 == zap_create_claim(os, DMU_GROUPUSED_OBJECT, DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx)); } /* - * If the object was not previously - * accounted, pretend that it was free. + * We intentionally modify the zap object even if the + * net delta is zero. Otherwise + * the block of the zap obj could be shared between + * datasets but need to be different between them after + * a bprewrite. */ - if (!(dn->dn_oldphys->dn_flags & - DNODE_FLAG_USERUSED_ACCOUNTED)) { - bzero(dn->dn_oldphys, sizeof (dnode_phys_t)); - } - - /* - * If the object was freed, use the previous bonustype. - */ - bonustype = dn->dn_phys->dn_bonustype ? - dn->dn_phys->dn_bonustype : dn->dn_oldphys->dn_bonustype; - ASSERT(dn->dn_phys->dn_type != 0 || - (bcmp(DN_BONUS(dn->dn_phys), zerobuf, - DN_MAX_BONUSLEN) == 0 && - DN_USED_BYTES(dn->dn_phys) == 0)); - ASSERT(dn->dn_oldphys->dn_type != 0 || - (bcmp(DN_BONUS(dn->dn_oldphys), zerobuf, - DN_MAX_BONUSLEN) == 0 && - DN_USED_BYTES(dn->dn_oldphys) == 0)); - used_cbs[os->os_phys->os_type](&os->os, bonustype, - DN_BONUS(dn->dn_oldphys), DN_BONUS(dn->dn_phys), - DN_USED_BYTES(dn->dn_oldphys), - DN_USED_BYTES(dn->dn_phys), tx); - /* - * The mutex is needed here for interlock with dnode_allocate. - */ mutex_enter(&dn->dn_mtx); - zio_buf_free(dn->dn_oldphys, sizeof (dnode_phys_t)); - dn->dn_oldphys = NULL; + ASSERT(dn->dn_id_flags); + if (dn->dn_id_flags & DN_ID_OLD_EXIST) { + do_userquota_update(os, dn->dn_oldused, dn->dn_oldflags, + dn->dn_olduid, dn->dn_oldgid, B_TRUE, tx); + } + if (dn->dn_id_flags & DN_ID_NEW_EXIST) { + do_userquota_update(os, DN_USED_BYTES(dn->dn_phys), + dn->dn_phys->dn_flags, dn->dn_newuid, + dn->dn_newgid, B_FALSE, tx); + } + + dn->dn_oldused = 0; + dn->dn_oldflags = 0; + if (dn->dn_id_flags & DN_ID_NEW_EXIST) { + dn->dn_olduid = dn->dn_newuid; + dn->dn_oldgid = dn->dn_newgid; + dn->dn_id_flags |= DN_ID_OLD_EXIST; + if (dn->dn_bonuslen == 0) + dn->dn_id_flags |= DN_ID_CHKED_SPILL; + else + dn->dn_id_flags |= DN_ID_CHKED_BONUS; + } + dn->dn_id_flags &= ~(DN_ID_NEW_EXIST); mutex_exit(&dn->dn_mtx); list_remove(list, dn); @@ -1101,10 +1179,140 @@ dmu_objset_do_userquota_callbacks(objset_impl_t *os, dmu_tx_t *tx) } } +/* + * Returns a pointer to data to find uid/gid from + * + * If a dirty record for transaction group that is syncing can't + * be found then NULL is returned. In the NULL case it is assumed + * the uid/gid aren't changing. + */ +static void * +dmu_objset_userquota_find_data(dmu_buf_impl_t *db, dmu_tx_t *tx) +{ + dbuf_dirty_record_t *dr, **drp; + void *data; + + if (db->db_dirtycnt == 0) + return (db->db.db_data); /* Nothing is changing */ + + for (drp = &db->db_last_dirty; (dr = *drp) != NULL; drp = &dr->dr_next) + if (dr->dr_txg == tx->tx_txg) + break; + + if (dr == NULL) + data = NULL; + else if (dr->dr_dbuf->db_dnode->dn_bonuslen == 0 && + dr->dr_dbuf->db_blkid == DMU_SPILL_BLKID) + data = dr->dt.dl.dr_data->b_data; + else + data = dr->dt.dl.dr_data; + return (data); +} + +void +dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx) +{ + objset_t *os = dn->dn_objset; + void *data = NULL; + dmu_buf_impl_t *db = NULL; + uint64_t *user, *group; + int flags = dn->dn_id_flags; + int error; + boolean_t have_spill = B_FALSE; + + if (!dmu_objset_userused_enabled(dn->dn_objset)) + return; + + if (before && (flags & (DN_ID_CHKED_BONUS|DN_ID_OLD_EXIST| + DN_ID_CHKED_SPILL))) + return; + + if (before && dn->dn_bonuslen != 0) + data = DN_BONUS(dn->dn_phys); + else if (!before && dn->dn_bonuslen != 0) { + if (dn->dn_bonus) { + db = dn->dn_bonus; + mutex_enter(&db->db_mtx); + data = dmu_objset_userquota_find_data(db, tx); + } else { + data = DN_BONUS(dn->dn_phys); + } + } else if (dn->dn_bonuslen == 0 && dn->dn_bonustype == DMU_OT_SA) { + int rf = 0; + + if (RW_WRITE_HELD(&dn->dn_struct_rwlock)) + rf |= DB_RF_HAVESTRUCT; + error = dmu_spill_hold_by_dnode(dn, rf, + FTAG, (dmu_buf_t **)&db); + ASSERT(error == 0); + mutex_enter(&db->db_mtx); + data = (before) ? db->db.db_data : + dmu_objset_userquota_find_data(db, tx); + have_spill = B_TRUE; + } else { + mutex_enter(&dn->dn_mtx); + dn->dn_id_flags |= DN_ID_CHKED_BONUS; + mutex_exit(&dn->dn_mtx); + return; + } + + if (before) { + ASSERT(data); + user = &dn->dn_olduid; + group = &dn->dn_oldgid; + } else if (data) { + user = &dn->dn_newuid; + group = &dn->dn_newgid; + } + + /* + * Must always call the callback in case the object + * type has changed and that type isn't an object type to track + */ + error = used_cbs[os->os_phys->os_type](dn->dn_bonustype, data, + user, group); + + /* + * Preserve existing uid/gid when the callback can't determine + * what the new uid/gid are and the callback returned EEXIST. + * The EEXIST error tells us to just use the existing uid/gid. + * If we don't know what the old values are then just assign + * them to 0, since that is a new file being created. + */ + if (!before && data == NULL && error == EEXIST) { + if (flags & DN_ID_OLD_EXIST) { + dn->dn_newuid = dn->dn_olduid; + dn->dn_newgid = dn->dn_oldgid; + } else { + dn->dn_newuid = 0; + dn->dn_newgid = 0; + } + error = 0; + } + + if (db) + mutex_exit(&db->db_mtx); + + mutex_enter(&dn->dn_mtx); + if (error == 0 && before) + dn->dn_id_flags |= DN_ID_OLD_EXIST; + if (error == 0 && !before) + dn->dn_id_flags |= DN_ID_NEW_EXIST; + + if (have_spill) { + dn->dn_id_flags |= DN_ID_CHKED_SPILL; + } else { + dn->dn_id_flags |= DN_ID_CHKED_BONUS; + } + mutex_exit(&dn->dn_mtx); + if (have_spill) + dmu_buf_rele((dmu_buf_t *)db, FTAG); +} + boolean_t dmu_objset_userspace_present(objset_t *os) { - return (os->os->os_phys->os_flags & + return (os->os_phys->os_flags & OBJSET_FLAG_USERACCOUNTING_COMPLETE); } @@ -1116,7 +1324,7 @@ dmu_objset_userspace_upgrade(objset_t *os) if (dmu_objset_userspace_present(os)) return (0); - if (!dmu_objset_userused_enabled(os->os)) + if (!dmu_objset_userused_enabled(os)) return (ENOTSUP); if (dmu_objset_is_snapshot(os)) return (EINVAL); @@ -1152,7 +1360,7 @@ dmu_objset_userspace_upgrade(objset_t *os) dmu_tx_commit(tx); } - os->os->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; + os->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; txg_wait_synced(dmu_objset_pool(os), 0); return (0); } @@ -1161,35 +1369,35 @@ void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, uint64_t *usedobjsp, uint64_t *availobjsp) { - dsl_dataset_space(os->os->os_dsl_dataset, refdbytesp, availbytesp, + dsl_dataset_space(os->os_dsl_dataset, refdbytesp, availbytesp, usedobjsp, availobjsp); } uint64_t dmu_objset_fsid_guid(objset_t *os) { - return (dsl_dataset_fsid_guid(os->os->os_dsl_dataset)); + return (dsl_dataset_fsid_guid(os->os_dsl_dataset)); } void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat) { - stat->dds_type = os->os->os_phys->os_type; - if (os->os->os_dsl_dataset) - dsl_dataset_fast_stat(os->os->os_dsl_dataset, stat); + stat->dds_type = os->os_phys->os_type; + if (os->os_dsl_dataset) + dsl_dataset_fast_stat(os->os_dsl_dataset, stat); } void dmu_objset_stats(objset_t *os, nvlist_t *nv) { - ASSERT(os->os->os_dsl_dataset || - os->os->os_phys->os_type == DMU_OST_META); + ASSERT(os->os_dsl_dataset || + os->os_phys->os_type == DMU_OST_META); - if (os->os->os_dsl_dataset != NULL) - dsl_dataset_stats(os->os->os_dsl_dataset, nv); + if (os->os_dsl_dataset != NULL) + dsl_dataset_stats(os->os_dsl_dataset, nv); dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_TYPE, - os->os->os_phys->os_type); + os->os_phys->os_type); dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERACCOUNTING, dmu_objset_userspace_present(os)); } @@ -1197,8 +1405,8 @@ dmu_objset_stats(objset_t *os, nvlist_t *nv) int dmu_objset_is_snapshot(objset_t *os) { - if (os->os->os_dsl_dataset != NULL) - return (dsl_dataset_is_snapshot(os->os->os_dsl_dataset)); + if (os->os_dsl_dataset != NULL) + return (dsl_dataset_is_snapshot(os->os_dsl_dataset)); else return (B_FALSE); } @@ -1207,7 +1415,7 @@ int dmu_snapshot_realname(objset_t *os, char *name, char *real, int maxlen, boolean_t *conflict) { - dsl_dataset_t *ds = os->os->os_dsl_dataset; + dsl_dataset_t *ds = os->os_dsl_dataset; uint64_t ignored; if (ds->ds_phys->ds_snapnames_zapobj == 0) @@ -1222,7 +1430,7 @@ int dmu_snapshot_list_next(objset_t *os, int namelen, char *name, uint64_t *idp, uint64_t *offp, boolean_t *case_conflict) { - dsl_dataset_t *ds = os->os->os_dsl_dataset; + dsl_dataset_t *ds = os->os_dsl_dataset; zap_cursor_t cursor; zap_attribute_t attr; @@ -1259,12 +1467,12 @@ int dmu_dir_list_next(objset_t *os, int namelen, char *name, uint64_t *idp, uint64_t *offp) { - dsl_dir_t *dd = os->os->os_dsl_dataset->ds_dir; + dsl_dir_t *dd = os->os_dsl_dataset->ds_dir; zap_cursor_t cursor; zap_attribute_t attr; /* there is no next dir on a snapshot! */ - if (os->os->os_dsl_dataset->ds_object != + if (os->os_dsl_dataset->ds_object != dd->dd_phys->dd_head_dataset_obj) return (ENOENT); @@ -1293,7 +1501,7 @@ dmu_dir_list_next(objset_t *os, int namelen, char *name, } struct findarg { - int (*func)(char *, void *); + int (*func)(const char *, void *); void *arg; }; @@ -1302,7 +1510,7 @@ static int findfunc(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) { struct findarg *fa = arg; - return (fa->func((char *)dsname, fa->arg)); + return (fa->func(dsname, fa->arg)); } /* @@ -1310,7 +1518,8 @@ findfunc(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) * Perhaps change all callers to use dmu_objset_find_spa()? */ int -dmu_objset_find(char *name, int func(char *, void *), void *arg, int flags) +dmu_objset_find(char *name, int func(const char *, void *), void *arg, + int flags) { struct findarg fa; fa.func = func; @@ -1361,12 +1570,9 @@ dmu_objset_find_spa(spa_t *spa, const char *name, ASSERT(attr->za_integer_length == sizeof (uint64_t)); ASSERT(attr->za_num_integers == 1); - child = kmem_alloc(MAXPATHLEN, KM_SLEEP); - (void) strcpy(child, name); - (void) strcat(child, "/"); - (void) strcat(child, attr->za_name); + child = kmem_asprintf("%s/%s", name, attr->za_name); err = dmu_objset_find_spa(spa, child, func, arg, flags); - kmem_free(child, MAXPATHLEN); + strfree(child); if (err) break; } @@ -1400,13 +1606,11 @@ dmu_objset_find_spa(spa_t *spa, const char *name, sizeof (uint64_t)); ASSERT(attr->za_num_integers == 1); - child = kmem_alloc(MAXPATHLEN, KM_SLEEP); - (void) strcpy(child, name); - (void) strcat(child, "@"); - (void) strcat(child, attr->za_name); + child = kmem_asprintf("%s@%s", + name, attr->za_name); err = func(spa, attr->za_first_integer, child, arg); - kmem_free(child, MAXPATHLEN); + strfree(child); if (err) break; } @@ -1429,7 +1633,7 @@ dmu_objset_find_spa(spa_t *spa, const char *name, /* ARGSUSED */ int -dmu_objset_prefetch(char *name, void *arg) +dmu_objset_prefetch(const char *name, void *arg) { dsl_dataset_t *ds; @@ -1438,16 +1642,14 @@ dmu_objset_prefetch(char *name, void *arg) if (!BP_IS_HOLE(&ds->ds_phys->ds_bp)) { mutex_enter(&ds->ds_opening_lock); - if (!dsl_dataset_get_user_ptr(ds)) { + if (ds->ds_objset == NULL) { uint32_t aflags = ARC_NOWAIT | ARC_PREFETCH; zbookmark_t zb; - zb.zb_objset = ds->ds_object; - zb.zb_object = 0; - zb.zb_level = -1; - zb.zb_blkid = 0; + SET_BOOKMARK(&zb, ds->ds_object, ZB_ROOT_OBJECT, + ZB_ROOT_LEVEL, ZB_ROOT_BLKID); - (void) arc_read_nolock(NULL, dsl_dataset_get_spa(ds), + (void) dsl_read_nolock(NULL, dsl_dataset_get_spa(ds), &ds->ds_phys->ds_bp, NULL, NULL, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE, @@ -1463,13 +1665,13 @@ dmu_objset_prefetch(char *name, void *arg) void dmu_objset_set_user(objset_t *os, void *user_ptr) { - ASSERT(MUTEX_HELD(&os->os->os_user_ptr_lock)); - os->os->os_user_ptr = user_ptr; + ASSERT(MUTEX_HELD(&os->os_user_ptr_lock)); + os->os_user_ptr = user_ptr; } void * dmu_objset_get_user(objset_t *os) { - ASSERT(MUTEX_HELD(&os->os->os_user_ptr_lock)); - return (os->os->os_user_ptr); + ASSERT(MUTEX_HELD(&os->os_user_ptr_lock)); + return (os->os_user_ptr); } diff --git a/module/zfs/dmu_send.c b/module/zfs/dmu_send.c index ce59aac50..6b00b73b4 100644 --- a/module/zfs/dmu_send.c +++ b/module/zfs/dmu_send.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/dmu.h> @@ -33,21 +32,40 @@ #include <sys/dmu_traverse.h> #include <sys/dsl_dataset.h> #include <sys/dsl_dir.h> +#include <sys/dsl_prop.h> #include <sys/dsl_pool.h> #include <sys/dsl_synctask.h> #include <sys/zfs_ioctl.h> #include <sys/zap.h> #include <sys/zio_checksum.h> +#include <sys/zfs_znode.h> +#include <zfs_fletcher.h> +#include <sys/avl.h> +#include <sys/ddt.h> static char *dmu_recv_tag = "dmu_recv_tag"; +/* + * The list of data whose inclusion in a send stream can be pending from + * one call to backup_cb to another. Multiple calls to dump_free() and + * dump_freeobjects() can be aggregated into a single DRR_FREE or + * DRR_FREEOBJECTS replay record. + */ +typedef enum { + PENDING_NONE, + PENDING_FREE, + PENDING_FREEOBJECTS +} pendop_t; + struct backuparg { dmu_replay_record_t *drr; vnode_t *vp; offset_t *off; objset_t *os; zio_cksum_t zc; + uint64_t toguid; int err; + pendop_t pending_op; }; static int @@ -68,29 +86,120 @@ static int dump_free(struct backuparg *ba, uint64_t object, uint64_t offset, uint64_t length) { - /* write a FREE record */ + struct drr_free *drrf = &(ba->drr->drr_u.drr_free); + + /* + * If there is a pending op, but it's not PENDING_FREE, push it out, + * since free block aggregation can only be done for blocks of the + * same type (i.e., DRR_FREE records can only be aggregated with + * other DRR_FREE records. DRR_FREEOBJECTS records can only be + * aggregated with other DRR_FREEOBJECTS records. + */ + if (ba->pending_op != PENDING_NONE && ba->pending_op != PENDING_FREE) { + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + ba->pending_op = PENDING_NONE; + } + + if (ba->pending_op == PENDING_FREE) { + /* + * There should never be a PENDING_FREE if length is -1 + * (because dump_dnode is the only place where this + * function is called with a -1, and only after flushing + * any pending record). + */ + ASSERT(length != -1ULL); + /* + * Check to see whether this free block can be aggregated + * with pending one. + */ + if (drrf->drr_object == object && drrf->drr_offset + + drrf->drr_length == offset) { + drrf->drr_length += length; + return (0); + } else { + /* not a continuation. Push out pending record */ + if (dump_bytes(ba, ba->drr, + sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + ba->pending_op = PENDING_NONE; + } + } + /* create a FREE record and make it pending */ bzero(ba->drr, sizeof (dmu_replay_record_t)); ba->drr->drr_type = DRR_FREE; - ba->drr->drr_u.drr_free.drr_object = object; - ba->drr->drr_u.drr_free.drr_offset = offset; - ba->drr->drr_u.drr_free.drr_length = length; + drrf->drr_object = object; + drrf->drr_offset = offset; + drrf->drr_length = length; + drrf->drr_toguid = ba->toguid; + if (length == -1ULL) { + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + } else { + ba->pending_op = PENDING_FREE; + } - if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t))) - return (EINTR); return (0); } static int dump_data(struct backuparg *ba, dmu_object_type_t type, - uint64_t object, uint64_t offset, int blksz, void *data) + uint64_t object, uint64_t offset, int blksz, const blkptr_t *bp, void *data) { + struct drr_write *drrw = &(ba->drr->drr_u.drr_write); + + + /* + * If there is any kind of pending aggregation (currently either + * a grouping of free objects or free blocks), push it out to + * the stream, since aggregation can't be done across operations + * of different types. + */ + if (ba->pending_op != PENDING_NONE) { + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + ba->pending_op = PENDING_NONE; + } /* write a DATA record */ bzero(ba->drr, sizeof (dmu_replay_record_t)); ba->drr->drr_type = DRR_WRITE; - ba->drr->drr_u.drr_write.drr_object = object; - ba->drr->drr_u.drr_write.drr_type = type; - ba->drr->drr_u.drr_write.drr_offset = offset; - ba->drr->drr_u.drr_write.drr_length = blksz; + drrw->drr_object = object; + drrw->drr_type = type; + drrw->drr_offset = offset; + drrw->drr_length = blksz; + drrw->drr_toguid = ba->toguid; + drrw->drr_checksumtype = BP_GET_CHECKSUM(bp); + if (zio_checksum_table[drrw->drr_checksumtype].ci_dedup) + drrw->drr_checksumflags |= DRR_CHECKSUM_DEDUP; + DDK_SET_LSIZE(&drrw->drr_key, BP_GET_LSIZE(bp)); + DDK_SET_PSIZE(&drrw->drr_key, BP_GET_PSIZE(bp)); + DDK_SET_COMPRESS(&drrw->drr_key, BP_GET_COMPRESS(bp)); + drrw->drr_key.ddk_cksum = bp->blk_cksum; + + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + if (dump_bytes(ba, data, blksz) != 0) + return (EINTR); + return (0); +} + +static int +dump_spill(struct backuparg *ba, uint64_t object, int blksz, void *data) +{ + struct drr_spill *drrs = &(ba->drr->drr_u.drr_spill); + + if (ba->pending_op != PENDING_NONE) { + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + ba->pending_op = PENDING_NONE; + } + + /* write a SPILL record */ + bzero(ba->drr, sizeof (dmu_replay_record_t)); + ba->drr->drr_type = DRR_SPILL; + drrs->drr_object = object; + drrs->drr_length = blksz; + drrs->drr_toguid = ba->toguid; if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t))) return (EINTR); @@ -102,39 +211,80 @@ dump_data(struct backuparg *ba, dmu_object_type_t type, static int dump_freeobjects(struct backuparg *ba, uint64_t firstobj, uint64_t numobjs) { + struct drr_freeobjects *drrfo = &(ba->drr->drr_u.drr_freeobjects); + + /* + * If there is a pending op, but it's not PENDING_FREEOBJECTS, + * push it out, since free block aggregation can only be done for + * blocks of the same type (i.e., DRR_FREE records can only be + * aggregated with other DRR_FREE records. DRR_FREEOBJECTS records + * can only be aggregated with other DRR_FREEOBJECTS records. + */ + if (ba->pending_op != PENDING_NONE && + ba->pending_op != PENDING_FREEOBJECTS) { + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + ba->pending_op = PENDING_NONE; + } + if (ba->pending_op == PENDING_FREEOBJECTS) { + /* + * See whether this free object array can be aggregated + * with pending one + */ + if (drrfo->drr_firstobj + drrfo->drr_numobjs == firstobj) { + drrfo->drr_numobjs += numobjs; + return (0); + } else { + /* can't be aggregated. Push out pending record */ + if (dump_bytes(ba, ba->drr, + sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + ba->pending_op = PENDING_NONE; + } + } + /* write a FREEOBJECTS record */ bzero(ba->drr, sizeof (dmu_replay_record_t)); ba->drr->drr_type = DRR_FREEOBJECTS; - ba->drr->drr_u.drr_freeobjects.drr_firstobj = firstobj; - ba->drr->drr_u.drr_freeobjects.drr_numobjs = numobjs; + drrfo->drr_firstobj = firstobj; + drrfo->drr_numobjs = numobjs; + drrfo->drr_toguid = ba->toguid; + + ba->pending_op = PENDING_FREEOBJECTS; - if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t))) - return (EINTR); return (0); } static int dump_dnode(struct backuparg *ba, uint64_t object, dnode_phys_t *dnp) { + struct drr_object *drro = &(ba->drr->drr_u.drr_object); + if (dnp == NULL || dnp->dn_type == DMU_OT_NONE) return (dump_freeobjects(ba, object, 1)); + if (ba->pending_op != PENDING_NONE) { + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) + return (EINTR); + ba->pending_op = PENDING_NONE; + } + /* write an OBJECT record */ bzero(ba->drr, sizeof (dmu_replay_record_t)); ba->drr->drr_type = DRR_OBJECT; - ba->drr->drr_u.drr_object.drr_object = object; - ba->drr->drr_u.drr_object.drr_type = dnp->dn_type; - ba->drr->drr_u.drr_object.drr_bonustype = dnp->dn_bonustype; - ba->drr->drr_u.drr_object.drr_blksz = - dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT; - ba->drr->drr_u.drr_object.drr_bonuslen = dnp->dn_bonuslen; - ba->drr->drr_u.drr_object.drr_checksum = dnp->dn_checksum; - ba->drr->drr_u.drr_object.drr_compress = dnp->dn_compress; - - if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t))) + drro->drr_object = object; + drro->drr_type = dnp->dn_type; + drro->drr_bonustype = dnp->dn_bonustype; + drro->drr_blksz = dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT; + drro->drr_bonuslen = dnp->dn_bonuslen; + drro->drr_checksumtype = dnp->dn_checksum; + drro->drr_compress = dnp->dn_compress; + drro->drr_toguid = ba->toguid; + + if (dump_bytes(ba, ba->drr, sizeof (dmu_replay_record_t)) != 0) return (EINTR); - if (dump_bytes(ba, DN_BONUS(dnp), P2ROUNDUP(dnp->dn_bonuslen, 8))) + if (dump_bytes(ba, DN_BONUS(dnp), P2ROUNDUP(dnp->dn_bonuslen, 8)) != 0) return (EINTR); /* free anything past the end of the file */ @@ -150,9 +300,10 @@ dump_dnode(struct backuparg *ba, uint64_t object, dnode_phys_t *dnp) (((uint64_t)dnp->dn_datablkszsec) << (SPA_MINBLOCKSHIFT + \ (level) * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) +/* ARGSUSED */ static int -backup_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, - const dnode_phys_t *dnp, void *arg) +backup_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, arc_buf_t *pbuf, + const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) { struct backuparg *ba = arg; dmu_object_type_t type = bp ? BP_GET_TYPE(bp) : DMU_OT_NONE; @@ -161,9 +312,10 @@ backup_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, if (issig(JUSTLOOKING) && issig(FORREAL)) return (EINTR); - if (zb->zb_object != 0 && DMU_OBJECT_IS_SPECIAL(zb->zb_object)) { + if (zb->zb_object != DMU_META_DNODE_OBJECT && + DMU_OBJECT_IS_SPECIAL(zb->zb_object)) { return (0); - } else if (bp == NULL && zb->zb_object == 0) { + } else if (bp == NULL && zb->zb_object == DMU_META_DNODE_OBJECT) { uint64_t span = BP_SPAN(dnp, zb->zb_level); uint64_t dnobj = (zb->zb_blkid * span) >> DNODE_SHIFT; err = dump_freeobjects(ba, dnobj, span >> DNODE_SHIFT); @@ -179,7 +331,7 @@ backup_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, uint32_t aflags = ARC_WAIT; arc_buf_t *abuf; - if (arc_read_nolock(NULL, spa, bp, + if (dsl_read(NULL, spa, bp, pbuf, arc_getbuf_func, &abuf, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &aflags, zb) != 0) return (EIO); @@ -193,7 +345,7 @@ backup_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, break; } (void) arc_buf_remove_ref(abuf, &abuf); - } else { /* it's a level-0 block of a regular object */ + } else if (type == DMU_OT_SA) { uint32_t aflags = ARC_WAIT; arc_buf_t *abuf; int blksz = BP_GET_LSIZE(bp); @@ -203,8 +355,20 @@ backup_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, ZIO_FLAG_CANFAIL, &aflags, zb) != 0) return (EIO); + err = dump_spill(ba, zb->zb_object, blksz, abuf->b_data); + (void) arc_buf_remove_ref(abuf, &abuf); + } else { /* it's a level-0 block of a regular object */ + uint32_t aflags = ARC_WAIT; + arc_buf_t *abuf; + int blksz = BP_GET_LSIZE(bp); + + if (dsl_read(NULL, spa, bp, pbuf, + arc_getbuf_func, &abuf, ZIO_PRIORITY_ASYNC_READ, + ZIO_FLAG_CANFAIL, &aflags, zb) != 0) + return (EIO); + err = dump_data(ba, type, zb->zb_object, zb->zb_blkid * blksz, - blksz, abuf->b_data); + blksz, bp, abuf->b_data); (void) arc_buf_remove_ref(abuf, &abuf); } @@ -216,8 +380,8 @@ int dmu_sendbackup(objset_t *tosnap, objset_t *fromsnap, boolean_t fromorigin, vnode_t *vp, offset_t *off) { - dsl_dataset_t *ds = tosnap->os->os_dsl_dataset; - dsl_dataset_t *fromds = fromsnap ? fromsnap->os->os_dsl_dataset : NULL; + dsl_dataset_t *ds = tosnap->os_dsl_dataset; + dsl_dataset_t *fromds = fromsnap ? fromsnap->os_dsl_dataset : NULL; dmu_replay_record_t *drr; struct backuparg ba; int err; @@ -254,10 +418,25 @@ dmu_sendbackup(objset_t *tosnap, objset_t *fromsnap, boolean_t fromorigin, drr = kmem_zalloc(sizeof (dmu_replay_record_t), KM_SLEEP); drr->drr_type = DRR_BEGIN; drr->drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC; - drr->drr_u.drr_begin.drr_version = DMU_BACKUP_STREAM_VERSION; + DMU_SET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo, + DMU_SUBSTREAM); + +#ifdef _KERNEL + if (dmu_objset_type(tosnap) == DMU_OST_ZFS) { + uint64_t version; + if (zfs_get_zplprop(tosnap, ZFS_PROP_VERSION, &version) != 0) + return (EINVAL); + if (version == ZPL_VERSION_SA) { + DMU_SET_FEATUREFLAGS( + drr->drr_u.drr_begin.drr_versioninfo, + DMU_BACKUP_FEATURE_SA_SPILL); + } + } +#endif + drr->drr_u.drr_begin.drr_creation_time = ds->ds_phys->ds_creation_time; - drr->drr_u.drr_begin.drr_type = tosnap->os->os_phys->os_type; + drr->drr_u.drr_begin.drr_type = tosnap->os_phys->os_type; if (fromorigin) drr->drr_u.drr_begin.drr_flags |= DRR_FLAG_CLONE; drr->drr_u.drr_begin.drr_toguid = ds->ds_phys->ds_guid; @@ -277,9 +456,11 @@ dmu_sendbackup(objset_t *tosnap, objset_t *fromsnap, boolean_t fromorigin, ba.vp = vp; ba.os = tosnap; ba.off = off; + ba.toguid = ds->ds_phys->ds_guid; ZIO_SET_CHECKSUM(&ba.zc, 0, 0, 0, 0); + ba.pending_op = PENDING_NONE; - if (dump_bytes(&ba, drr, sizeof (dmu_replay_record_t))) { + if (dump_bytes(&ba, drr, sizeof (dmu_replay_record_t)) != 0) { kmem_free(drr, sizeof (dmu_replay_record_t)); return (ba.err); } @@ -287,6 +468,10 @@ dmu_sendbackup(objset_t *tosnap, objset_t *fromsnap, boolean_t fromorigin, err = traverse_dataset(ds, fromtxg, TRAVERSE_PRE | TRAVERSE_PREFETCH, backup_cb, &ba); + if (ba.pending_op != PENDING_NONE) + if (dump_bytes(&ba, drr, sizeof (dmu_replay_record_t)) != 0) + err = EINTR; + if (err) { if (err == EINTR && ba.err) err = ba.err; @@ -297,8 +482,9 @@ dmu_sendbackup(objset_t *tosnap, objset_t *fromsnap, boolean_t fromorigin, bzero(drr, sizeof (dmu_replay_record_t)); drr->drr_type = DRR_END; drr->drr_u.drr_end.drr_checksum = ba.zc; + drr->drr_u.drr_end.drr_toguid = ba.toguid; - if (dump_bytes(&ba, drr, sizeof (dmu_replay_record_t))) { + if (dump_bytes(&ba, drr, sizeof (dmu_replay_record_t)) != 0) { kmem_free(drr, sizeof (dmu_replay_record_t)); return (ba.err); } @@ -319,33 +505,12 @@ struct recvbeginsyncarg { uint64_t dsflags; char clonelastname[MAXNAMELEN]; dsl_dataset_t *ds; /* the ds to recv into; returned from the syncfunc */ + cred_t *cr; }; -static dsl_dataset_t * -recv_full_sync_impl(dsl_pool_t *dp, uint64_t dsobj, dmu_objset_type_t type, - cred_t *cr, dmu_tx_t *tx) -{ - dsl_dataset_t *ds; - - /* This should always work, since we just created it */ - /* XXX - create should return an owned ds */ - VERIFY(0 == dsl_dataset_own_obj(dp, dsobj, - DS_MODE_INCONSISTENT, dmu_recv_tag, &ds)); - - if (type != DMU_OST_NONE) { - (void) dmu_objset_create_impl(dp->dp_spa, - ds, &ds->ds_phys->ds_bp, type, tx); - } - - spa_history_internal_log(LOG_DS_REPLAY_FULL_SYNC, - dp->dp_spa, tx, cr, "dataset = %lld", dsobj); - - return (ds); -} - /* ARGSUSED */ static int -recv_full_check(void *arg1, void *arg2, dmu_tx_t *tx) +recv_new_check(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dir_t *dd = arg1; struct recvbeginsyncarg *rbsa = arg2; @@ -363,7 +528,7 @@ recv_full_check(void *arg1, void *arg2, dmu_tx_t *tx) /* make sure it's a snap in the same pool */ if (rbsa->origin->ds_dir->dd_pool != dd->dd_pool) return (EXDEV); - if (rbsa->origin->ds_phys->ds_num_children == 0) + if (!dsl_dataset_is_snapshot(rbsa->origin)) return (EINVAL); if (rbsa->origin->ds_phys->ds_guid != rbsa->fromguid) return (ENODEV); @@ -373,82 +538,31 @@ recv_full_check(void *arg1, void *arg2, dmu_tx_t *tx) } static void -recv_full_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +recv_new_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dir_t *dd = arg1; struct recvbeginsyncarg *rbsa = arg2; uint64_t flags = DS_FLAG_INCONSISTENT | rbsa->dsflags; uint64_t dsobj; + /* Create and open new dataset. */ dsobj = dsl_dataset_create_sync(dd, strrchr(rbsa->tofs, '/') + 1, - rbsa->origin, flags, cr, tx); - - rbsa->ds = recv_full_sync_impl(dd->dd_pool, dsobj, - rbsa->origin ? DMU_OST_NONE : rbsa->type, cr, tx); -} - -static int -recv_full_existing_check(void *arg1, void *arg2, dmu_tx_t *tx) -{ - dsl_dataset_t *ds = arg1; - struct recvbeginsyncarg *rbsa = arg2; - int err; - struct dsl_ds_destroyarg dsda = {0}; - - /* must be a head ds */ - if (ds->ds_phys->ds_next_snap_obj != 0) - return (EINVAL); - - /* must not be a clone ds */ - if (dsl_dir_is_clone(ds->ds_dir)) - return (EINVAL); - - dsda.ds = ds; - err = dsl_dataset_destroy_check(&dsda, rbsa->tag, tx); - if (err) - return (err); + rbsa->origin, flags, rbsa->cr, tx); + VERIFY(0 == dsl_dataset_own_obj(dd->dd_pool, dsobj, + B_TRUE, dmu_recv_tag, &rbsa->ds)); - if (rbsa->origin) { - /* make sure it's a snap in the same pool */ - if (rbsa->origin->ds_dir->dd_pool != ds->ds_dir->dd_pool) - return (EXDEV); - if (rbsa->origin->ds_phys->ds_num_children == 0) - return (EINVAL); - if (rbsa->origin->ds_phys->ds_guid != rbsa->fromguid) - return (ENODEV); + if (rbsa->origin == NULL) { + (void) dmu_objset_create_impl(dd->dd_pool->dp_spa, + rbsa->ds, &rbsa->ds->ds_phys->ds_bp, rbsa->type, tx); } - return (0); -} - -static void -recv_full_existing_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) -{ - dsl_dataset_t *ds = arg1; - struct recvbeginsyncarg *rbsa = arg2; - dsl_dir_t *dd = ds->ds_dir; - uint64_t flags = DS_FLAG_INCONSISTENT | rbsa->dsflags; - uint64_t dsobj; - struct dsl_ds_destroyarg dsda = {0}; - - /* - * NB: caller must provide an extra hold on the dsl_dir_t, so it - * won't go away when dsl_dataset_destroy_sync() closes the - * dataset. - */ - dsda.ds = ds; - dsl_dataset_destroy_sync(&dsda, rbsa->tag, cr, tx); - ASSERT3P(dsda.rm_origin, ==, NULL); - - dsobj = dsl_dataset_create_sync_dd(dd, rbsa->origin, flags, tx); - - rbsa->ds = recv_full_sync_impl(dd->dd_pool, dsobj, - rbsa->origin ? DMU_OST_NONE : rbsa->type, cr, tx); + spa_history_log_internal(LOG_DS_REPLAY_FULL_SYNC, + dd->dd_pool->dp_spa, tx, "dataset = %lld", dsobj); } /* ARGSUSED */ static int -recv_incremental_check(void *arg1, void *arg2, dmu_tx_t *tx) +recv_existing_check(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; struct recvbeginsyncarg *rbsa = arg2; @@ -459,13 +573,43 @@ recv_incremental_check(void *arg1, void *arg2, dmu_tx_t *tx) if (!rbsa->force && dsl_dataset_modified_since_lastsnap(ds)) return (ETXTBSY); - /* must already be a snapshot of this fs */ - if (ds->ds_phys->ds_prev_snap_obj == 0) - return (ENODEV); + if (rbsa->fromguid) { + /* if incremental, most recent snapshot must match fromguid */ + if (ds->ds_prev == NULL) + return (ENODEV); - /* most recent snapshot must match fromguid */ - if (ds->ds_prev->ds_phys->ds_guid != rbsa->fromguid) - return (ENODEV); + /* + * most recent snapshot must match fromguid, or there are no + * changes since the fromguid one + */ + if (ds->ds_prev->ds_phys->ds_guid != rbsa->fromguid) { + uint64_t birth = ds->ds_prev->ds_phys->ds_bp.blk_birth; + uint64_t obj = ds->ds_prev->ds_phys->ds_prev_snap_obj; + while (obj != 0) { + dsl_dataset_t *snap; + err = dsl_dataset_hold_obj(ds->ds_dir->dd_pool, + obj, FTAG, &snap); + if (err) + return (ENODEV); + if (snap->ds_phys->ds_creation_txg < birth) { + dsl_dataset_rele(snap, FTAG); + return (ENODEV); + } + if (snap->ds_phys->ds_guid == rbsa->fromguid) { + dsl_dataset_rele(snap, FTAG); + break; /* it's ok */ + } + obj = snap->ds_phys->ds_prev_snap_obj; + dsl_dataset_rele(snap, FTAG); + } + if (obj == 0) + return (ENODEV); + } + } else { + /* if full, most recent snapshot must be $ORIGIN */ + if (ds->ds_phys->ds_prev_snap_txg >= TXG_INITIAL) + return (ENODEV); + } /* temporary clone name must not exist */ err = zap_lookup(ds->ds_dir->dd_pool->dp_meta_objset, @@ -488,34 +632,46 @@ recv_incremental_check(void *arg1, void *arg2, dmu_tx_t *tx) /* ARGSUSED */ static void -recv_incremental_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +recv_existing_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ohds = arg1; struct recvbeginsyncarg *rbsa = arg2; dsl_pool_t *dp = ohds->ds_dir->dd_pool; - dsl_dataset_t *ods, *cds; + dsl_dataset_t *cds; uint64_t flags = DS_FLAG_INCONSISTENT | rbsa->dsflags; uint64_t dsobj; - /* create the temporary clone */ - VERIFY(0 == dsl_dataset_hold_obj(dp, ohds->ds_phys->ds_prev_snap_obj, - FTAG, &ods)); - dsobj = dsl_dataset_create_sync(ohds->ds_dir, - rbsa->clonelastname, ods, flags, cr, tx); - dsl_dataset_rele(ods, FTAG); - - /* open the temporary clone */ - VERIFY(0 == dsl_dataset_own_obj(dp, dsobj, - DS_MODE_INCONSISTENT, dmu_recv_tag, &cds)); + /* create and open the temporary clone */ + dsobj = dsl_dataset_create_sync(ohds->ds_dir, rbsa->clonelastname, + ohds->ds_prev, flags, rbsa->cr, tx); + VERIFY(0 == dsl_dataset_own_obj(dp, dsobj, B_TRUE, dmu_recv_tag, &cds)); - /* copy the refquota from the target fs to the clone */ - if (ohds->ds_quota > 0) - dsl_dataset_set_quota_sync(cds, &ohds->ds_quota, cr, tx); + /* + * If we actually created a non-clone, we need to create the + * objset in our new dataset. + */ + if (BP_IS_HOLE(dsl_dataset_get_blkptr(cds))) { + (void) dmu_objset_create_impl(dp->dp_spa, + cds, dsl_dataset_get_blkptr(cds), rbsa->type, tx); + } rbsa->ds = cds; - spa_history_internal_log(LOG_DS_REPLAY_INC_SYNC, - dp->dp_spa, tx, cr, "dataset = %lld", dsobj); + spa_history_log_internal(LOG_DS_REPLAY_INC_SYNC, + dp->dp_spa, tx, "dataset = %lld", dsobj); +} + + +static boolean_t +dmu_recv_verify_features(dsl_dataset_t *ds, struct drr_begin *drrb) +{ + int featureflags; + + featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); + + /* Verify pool version supports SA if SA_SPILL feature set */ + return ((featureflags & DMU_BACKUP_FEATURE_SA_SPILL) && + (spa_version(dsl_dataset_get_spa(ds)) < SPA_VERSION_SA)); } /* @@ -523,13 +679,13 @@ recv_incremental_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) * succeeds; otherwise we will leak the holds on the datasets. */ int -dmu_recv_begin(char *tofs, char *tosnap, struct drr_begin *drrb, +dmu_recv_begin(char *tofs, char *tosnap, char *top_ds, struct drr_begin *drrb, boolean_t force, objset_t *origin, dmu_recv_cookie_t *drc) { int err = 0; boolean_t byteswap; - struct recvbeginsyncarg rbsa; - uint64_t version; + struct recvbeginsyncarg rbsa = { 0 }; + uint64_t versioninfo; int flags; dsl_dataset_t *ds; @@ -542,22 +698,23 @@ dmu_recv_begin(char *tofs, char *tosnap, struct drr_begin *drrb, rbsa.tofs = tofs; rbsa.tosnap = tosnap; - rbsa.origin = origin ? origin->os->os_dsl_dataset : NULL; + rbsa.origin = origin ? origin->os_dsl_dataset : NULL; rbsa.fromguid = drrb->drr_fromguid; rbsa.type = drrb->drr_type; rbsa.tag = FTAG; rbsa.dsflags = 0; - version = drrb->drr_version; + rbsa.cr = CRED(); + versioninfo = drrb->drr_versioninfo; flags = drrb->drr_flags; if (byteswap) { rbsa.type = BSWAP_32(rbsa.type); rbsa.fromguid = BSWAP_64(rbsa.fromguid); - version = BSWAP_64(version); + versioninfo = BSWAP_64(versioninfo); flags = BSWAP_32(flags); } - if (version != DMU_BACKUP_STREAM_VERSION || + if (DMU_GET_STREAM_HDRTYPE(versioninfo) == DMU_COMPOUNDSTREAM || rbsa.type >= DMU_OST_NUMTYPES || ((flags & DRR_FLAG_CLONE) && origin == NULL)) return (EINVAL); @@ -568,22 +725,27 @@ dmu_recv_begin(char *tofs, char *tosnap, struct drr_begin *drrb, bzero(drc, sizeof (dmu_recv_cookie_t)); drc->drc_drrb = drrb; drc->drc_tosnap = tosnap; + drc->drc_top_ds = top_ds; drc->drc_force = force; /* * Process the begin in syncing context. */ - if (rbsa.fromguid && !(flags & DRR_FLAG_CLONE)) { - /* incremental receive */ - /* tmp clone name is: tofs/%tosnap" */ - (void) snprintf(rbsa.clonelastname, sizeof (rbsa.clonelastname), - "%%%s", tosnap); + /* open the dataset we are logically receiving into */ + err = dsl_dataset_hold(tofs, dmu_recv_tag, &ds); + if (err == 0) { + if (dmu_recv_verify_features(ds, drrb)) { + dsl_dataset_rele(ds, dmu_recv_tag); + return (ENOTSUP); + } + /* target fs already exists; recv into temp clone */ - /* open the dataset we are logically receiving into */ - err = dsl_dataset_hold(tofs, dmu_recv_tag, &ds); - if (err) - return (err); + /* Can't recv a clone into an existing fs */ + if (flags & DRR_FLAG_CLONE) { + dsl_dataset_rele(ds, dmu_recv_tag); + return (EINVAL); + } /* must not have an incremental recv already in progress */ if (!mutex_tryenter(&ds->ds_recvlock)) { @@ -591,10 +753,12 @@ dmu_recv_begin(char *tofs, char *tosnap, struct drr_begin *drrb, return (EBUSY); } + /* tmp clone name is: tofs/%tosnap" */ + (void) snprintf(rbsa.clonelastname, sizeof (rbsa.clonelastname), + "%%%s", tosnap); rbsa.force = force; err = dsl_sync_task_do(ds->ds_dir->dd_pool, - recv_incremental_check, - recv_incremental_sync, ds, &rbsa, 5); + recv_existing_check, recv_existing_sync, ds, &rbsa, 5); if (err) { mutex_exit(&ds->ds_recvlock); dsl_dataset_rele(ds, dmu_recv_tag); @@ -602,47 +766,40 @@ dmu_recv_begin(char *tofs, char *tosnap, struct drr_begin *drrb, } drc->drc_logical_ds = ds; drc->drc_real_ds = rbsa.ds; - } else { - /* create new fs -- full backup or clone */ - dsl_dir_t *dd = NULL; - const char *tail; + } else if (err == ENOENT) { + /* target fs does not exist; must be a full backup or clone */ + char *cp; - err = dsl_dir_open(tofs, FTAG, &dd, &tail); + /* + * If it's a non-clone incremental, we are missing the + * target fs, so fail the recv. + */ + if (rbsa.fromguid && !(flags & DRR_FLAG_CLONE)) + return (ENOENT); + + /* Open the parent of tofs */ + cp = strrchr(tofs, '/'); + *cp = '\0'; + err = dsl_dataset_hold(tofs, FTAG, &ds); + *cp = '/'; if (err) return (err); - if (tail == NULL) { - if (!force) { - dsl_dir_close(dd, FTAG); - return (EEXIST); - } - rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); - err = dsl_dataset_own_obj(dd->dd_pool, - dd->dd_phys->dd_head_dataset_obj, - DS_MODE_INCONSISTENT, FTAG, &ds); - rw_exit(&dd->dd_pool->dp_config_rwlock); - if (err) { - dsl_dir_close(dd, FTAG); - return (err); - } - - dsl_dataset_make_exclusive(ds, FTAG); - err = dsl_sync_task_do(dd->dd_pool, - recv_full_existing_check, - recv_full_existing_sync, ds, &rbsa, 5); - dsl_dataset_disown(ds, FTAG); - } else { - err = dsl_sync_task_do(dd->dd_pool, recv_full_check, - recv_full_sync, dd, &rbsa, 5); + if (dmu_recv_verify_features(ds, drrb)) { + dsl_dataset_rele(ds, dmu_recv_tag); + return (ENOTSUP); } - dsl_dir_close(dd, FTAG); + + err = dsl_sync_task_do(ds->ds_dir->dd_pool, + recv_new_check, recv_new_sync, ds->ds_dir, &rbsa, 5); + dsl_dataset_rele(ds, FTAG); if (err) return (err); drc->drc_logical_ds = drc->drc_real_ds = rbsa.ds; drc->drc_newfs = B_TRUE; } - return (0); + return (err); } struct restorearg { @@ -653,8 +810,83 @@ struct restorearg { uint64_t voff; int bufsize; /* amount of memory allocated for buf */ zio_cksum_t cksum; + avl_tree_t guid_to_ds_map; }; +typedef struct guid_map_entry { + uint64_t guid; + dsl_dataset_t *gme_ds; + avl_node_t avlnode; +} guid_map_entry_t; + +static int +guid_compare(const void *arg1, const void *arg2) +{ + const guid_map_entry_t *gmep1 = arg1; + const guid_map_entry_t *gmep2 = arg2; + + if (gmep1->guid < gmep2->guid) + return (-1); + else if (gmep1->guid > gmep2->guid) + return (1); + return (0); +} + +/* + * This function is a callback used by dmu_objset_find() (which + * enumerates the object sets) to build an avl tree that maps guids + * to datasets. The resulting table is used when processing DRR_WRITE_BYREF + * send stream records. These records, which are used in dedup'ed + * streams, do not contain data themselves, but refer to a copy + * of the data block that has already been written because it was + * earlier in the stream. That previous copy is identified by the + * guid of the dataset with the referenced data. + */ +int +find_ds_by_guid(const char *name, void *arg) +{ + avl_tree_t *guid_map = arg; + dsl_dataset_t *ds, *snapds; + guid_map_entry_t *gmep; + dsl_pool_t *dp; + int err; + uint64_t lastobj, firstobj; + + if (dsl_dataset_hold(name, FTAG, &ds) != 0) + return (0); + + dp = ds->ds_dir->dd_pool; + rw_enter(&dp->dp_config_rwlock, RW_READER); + firstobj = ds->ds_dir->dd_phys->dd_origin_obj; + lastobj = ds->ds_phys->ds_prev_snap_obj; + + while (lastobj != firstobj) { + err = dsl_dataset_hold_obj(dp, lastobj, guid_map, &snapds); + if (err) { + /* + * Skip this snapshot and move on. It's not + * clear why this would ever happen, but the + * remainder of the snapshot streadm can be + * processed. + */ + rw_exit(&dp->dp_config_rwlock); + dsl_dataset_rele(ds, FTAG); + return (0); + } + + gmep = kmem_alloc(sizeof (guid_map_entry_t), KM_SLEEP); + gmep->guid = snapds->ds_phys->ds_guid; + gmep->gme_ds = snapds; + avl_add(guid_map, gmep); + lastobj = snapds->ds_phys->ds_prev_snap_obj; + } + + rw_exit(&dp->dp_config_rwlock); + dsl_dataset_rele(ds, FTAG); + + return (0); +} + static void * restore_read(struct restorearg *ra, int len) { @@ -699,7 +931,7 @@ backup_byteswap(dmu_replay_record_t *drr) switch (drr->drr_type) { case DRR_BEGIN: DO64(drr_begin.drr_magic); - DO64(drr_begin.drr_version); + DO64(drr_begin.drr_versioninfo); DO64(drr_begin.drr_creation_time); DO32(drr_begin.drr_type); DO32(drr_begin.drr_flags); @@ -713,27 +945,56 @@ backup_byteswap(dmu_replay_record_t *drr) DO32(drr_object.drr_bonustype); DO32(drr_object.drr_blksz); DO32(drr_object.drr_bonuslen); + DO64(drr_object.drr_toguid); break; case DRR_FREEOBJECTS: DO64(drr_freeobjects.drr_firstobj); DO64(drr_freeobjects.drr_numobjs); + DO64(drr_freeobjects.drr_toguid); break; case DRR_WRITE: DO64(drr_write.drr_object); DO32(drr_write.drr_type); DO64(drr_write.drr_offset); DO64(drr_write.drr_length); + DO64(drr_write.drr_toguid); + DO64(drr_write.drr_key.ddk_cksum.zc_word[0]); + DO64(drr_write.drr_key.ddk_cksum.zc_word[1]); + DO64(drr_write.drr_key.ddk_cksum.zc_word[2]); + DO64(drr_write.drr_key.ddk_cksum.zc_word[3]); + DO64(drr_write.drr_key.ddk_prop); + break; + case DRR_WRITE_BYREF: + DO64(drr_write_byref.drr_object); + DO64(drr_write_byref.drr_offset); + DO64(drr_write_byref.drr_length); + DO64(drr_write_byref.drr_toguid); + DO64(drr_write_byref.drr_refguid); + DO64(drr_write_byref.drr_refobject); + DO64(drr_write_byref.drr_refoffset); + DO64(drr_write_byref.drr_key.ddk_cksum.zc_word[0]); + DO64(drr_write_byref.drr_key.ddk_cksum.zc_word[1]); + DO64(drr_write_byref.drr_key.ddk_cksum.zc_word[2]); + DO64(drr_write_byref.drr_key.ddk_cksum.zc_word[3]); + DO64(drr_write_byref.drr_key.ddk_prop); break; case DRR_FREE: DO64(drr_free.drr_object); DO64(drr_free.drr_offset); DO64(drr_free.drr_length); + DO64(drr_free.drr_toguid); + break; + case DRR_SPILL: + DO64(drr_spill.drr_object); + DO64(drr_spill.drr_length); + DO64(drr_spill.drr_toguid); break; case DRR_END: DO64(drr_end.drr_checksum.zc_word[0]); DO64(drr_end.drr_checksum.zc_word[1]); DO64(drr_end.drr_checksum.zc_word[2]); DO64(drr_end.drr_checksum.zc_word[3]); + DO64(drr_end.drr_toguid); break; } #undef DO64 @@ -750,7 +1011,7 @@ restore_object(struct restorearg *ra, objset_t *os, struct drr_object *drro) if (drro->drr_type == DMU_OT_NONE || drro->drr_type >= DMU_OT_NUMTYPES || drro->drr_bonustype >= DMU_OT_NUMTYPES || - drro->drr_checksum >= ZIO_CHECKSUM_FUNCTIONS || + drro->drr_checksumtype >= ZIO_CHECKSUM_FUNCTIONS || drro->drr_compress >= ZIO_COMPRESS_FUNCTIONS || P2PHASE(drro->drr_blksz, SPA_MINBLOCKSIZE) || drro->drr_blksz < SPA_MINBLOCKSIZE || @@ -789,8 +1050,9 @@ restore_object(struct restorearg *ra, objset_t *os, struct drr_object *drro) drro->drr_type, drro->drr_blksz, drro->drr_bonustype, drro->drr_bonuslen); } - if (err) + if (err) { return (EINVAL); + } tx = dmu_tx_create(os); dmu_tx_hold_bonus(tx, drro->drr_object); @@ -800,7 +1062,8 @@ restore_object(struct restorearg *ra, objset_t *os, struct drr_object *drro) return (err); } - dmu_object_set_checksum(os, drro->drr_object, drro->drr_checksum, tx); + dmu_object_set_checksum(os, drro->drr_object, drro->drr_checksumtype, + tx); dmu_object_set_compress(os, drro->drr_object, drro->drr_compress, tx); if (data != NULL) { @@ -882,6 +1145,114 @@ restore_write(struct restorearg *ra, objset_t *os, return (0); } +/* + * Handle a DRR_WRITE_BYREF record. This record is used in dedup'ed + * streams to refer to a copy of the data that is already on the + * system because it came in earlier in the stream. This function + * finds the earlier copy of the data, and uses that copy instead of + * data from the stream to fulfill this write. + */ +static int +restore_write_byref(struct restorearg *ra, objset_t *os, + struct drr_write_byref *drrwbr) +{ + dmu_tx_t *tx; + int err; + guid_map_entry_t gmesrch; + guid_map_entry_t *gmep; + avl_index_t where; + objset_t *ref_os = NULL; + dmu_buf_t *dbp; + + if (drrwbr->drr_offset + drrwbr->drr_length < drrwbr->drr_offset) + return (EINVAL); + + /* + * If the GUID of the referenced dataset is different from the + * GUID of the target dataset, find the referenced dataset. + */ + if (drrwbr->drr_toguid != drrwbr->drr_refguid) { + gmesrch.guid = drrwbr->drr_refguid; + if ((gmep = avl_find(&ra->guid_to_ds_map, &gmesrch, + &where)) == NULL) { + return (EINVAL); + } + if (dmu_objset_from_ds(gmep->gme_ds, &ref_os)) + return (EINVAL); + } else { + ref_os = os; + } + + if (err = dmu_buf_hold(ref_os, drrwbr->drr_refobject, + drrwbr->drr_refoffset, FTAG, &dbp, DMU_READ_PREFETCH)) + return (err); + + tx = dmu_tx_create(os); + + dmu_tx_hold_write(tx, drrwbr->drr_object, + drrwbr->drr_offset, drrwbr->drr_length); + err = dmu_tx_assign(tx, TXG_WAIT); + if (err) { + dmu_tx_abort(tx); + return (err); + } + dmu_write(os, drrwbr->drr_object, + drrwbr->drr_offset, drrwbr->drr_length, dbp->db_data, tx); + dmu_buf_rele(dbp, FTAG); + dmu_tx_commit(tx); + return (0); +} + +static int +restore_spill(struct restorearg *ra, objset_t *os, struct drr_spill *drrs) +{ + dmu_tx_t *tx; + void *data; + dmu_buf_t *db, *db_spill; + int err; + + if (drrs->drr_length < SPA_MINBLOCKSIZE || + drrs->drr_length > SPA_MAXBLOCKSIZE) + return (EINVAL); + + data = restore_read(ra, drrs->drr_length); + if (data == NULL) + return (ra->err); + + if (dmu_object_info(os, drrs->drr_object, NULL) != 0) + return (EINVAL); + + VERIFY(0 == dmu_bonus_hold(os, drrs->drr_object, FTAG, &db)); + if ((err = dmu_spill_hold_by_bonus(db, FTAG, &db_spill)) != 0) { + dmu_buf_rele(db, FTAG); + return (err); + } + + tx = dmu_tx_create(os); + + dmu_tx_hold_spill(tx, db->db_object); + + err = dmu_tx_assign(tx, TXG_WAIT); + if (err) { + dmu_buf_rele(db, FTAG); + dmu_buf_rele(db_spill, FTAG); + dmu_tx_abort(tx); + return (err); + } + dmu_buf_will_dirty(db_spill, tx); + + if (db_spill->db_size < drrs->drr_length) + VERIFY(0 == dbuf_spill_set_blksz(db_spill, + drrs->drr_length, tx)); + bcopy(data, db_spill->db_data, drrs->drr_length); + + dmu_buf_rele(db, FTAG); + dmu_buf_rele(db_spill, FTAG); + + dmu_tx_commit(tx); + return (0); +} + /* ARGSUSED */ static int restore_free(struct restorearg *ra, objset_t *os, @@ -911,6 +1282,8 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp) dmu_replay_record_t *drr; objset_t *os; zio_cksum_t pcksum; + guid_map_entry_t *gmep; + int featureflags; if (drc->drc_drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) ra.byteswap = TRUE; @@ -935,7 +1308,7 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp) if (ra.byteswap) { struct drr_begin *drrb = drc->drc_drrb; drrb->drr_magic = BSWAP_64(drrb->drr_magic); - drrb->drr_version = BSWAP_64(drrb->drr_version); + drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo); drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time); drrb->drr_type = BSWAP_32(drrb->drr_type); drrb->drr_toguid = BSWAP_64(drrb->drr_toguid); @@ -948,16 +1321,29 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp) ra.buf = kmem_alloc(ra.bufsize, KM_SLEEP); /* these were verified in dmu_recv_begin */ - ASSERT(drc->drc_drrb->drr_version == DMU_BACKUP_STREAM_VERSION); + ASSERT(DMU_GET_STREAM_HDRTYPE(drc->drc_drrb->drr_versioninfo) == + DMU_SUBSTREAM); ASSERT(drc->drc_drrb->drr_type < DMU_OST_NUMTYPES); /* * Open the objset we are modifying. */ - VERIFY(dmu_objset_open_ds(drc->drc_real_ds, DMU_OST_ANY, &os) == 0); + VERIFY(dmu_objset_from_ds(drc->drc_real_ds, &os) == 0); ASSERT(drc->drc_real_ds->ds_phys->ds_flags & DS_FLAG_INCONSISTENT); + featureflags = DMU_GET_FEATUREFLAGS(drc->drc_drrb->drr_versioninfo); + + /* if this stream is dedup'ed, set up the avl tree for guid mapping */ + if (featureflags & DMU_BACKUP_FEATURE_DEDUP) { + avl_create(&ra.guid_to_ds_map, guid_compare, + sizeof (guid_map_entry_t), + offsetof(guid_map_entry_t, avlnode)); + (void) dmu_objset_find(drc->drc_top_ds, find_ds_by_guid, + (void *)&ra.guid_to_ds_map, + DS_FIND_CHILDREN); + } + /* * Read records and process them. */ @@ -997,6 +1383,13 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp) ra.err = restore_write(&ra, os, &drrw); break; } + case DRR_WRITE_BYREF: + { + struct drr_write_byref drrwbr = + drr->drr_u.drr_write_byref; + ra.err = restore_write_byref(&ra, os, &drrwbr); + break; + } case DRR_FREE: { struct drr_free drrf = drr->drr_u.drr_free; @@ -1015,6 +1408,12 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp) ra.err = ECKSUM; goto out; } + case DRR_SPILL: + { + struct drr_spill drrs = drr->drr_u.drr_spill; + ra.err = restore_spill(&ra, os, &drrs); + break; + } default: ra.err = EINVAL; goto out; @@ -1024,8 +1423,6 @@ dmu_recv_stream(dmu_recv_cookie_t *drc, vnode_t *vp, offset_t *voffp) ASSERT(ra.err != 0); out: - dmu_objset_close(os); - if (ra.err != 0) { /* * destroy what we created, so we don't leave it in the @@ -1041,6 +1438,16 @@ out: } } + if (featureflags & DMU_BACKUP_FEATURE_DEDUP) { + void *cookie = NULL; + + while (gmep = avl_destroy_nodes(&ra.guid_to_ds_map, &cookie)) { + dsl_dataset_rele(gmep->gme_ds, &ra.guid_to_ds_map); + kmem_free(gmep, sizeof (guid_map_entry_t)); + } + avl_destroy(&ra.guid_to_ds_map); + } + kmem_free(ra.buf, ra.bufsize); *voffp = ra.voff; return (ra.err); @@ -1062,12 +1469,12 @@ recv_end_check(void *arg1, void *arg2, dmu_tx_t *tx) } static void -recv_end_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +recv_end_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; struct recvendsyncarg *resa = arg2; - dsl_dataset_snapshot_sync(ds, resa->tosnap, cr, tx); + dsl_dataset_snapshot_sync(ds, resa->tosnap, tx); /* set snapshot's creation time and guid */ dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); @@ -1079,37 +1486,31 @@ recv_end_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) ds->ds_phys->ds_flags &= ~DS_FLAG_INCONSISTENT; } -int -dmu_recv_end(dmu_recv_cookie_t *drc) +static int +dmu_recv_existing_end(dmu_recv_cookie_t *drc) { struct recvendsyncarg resa; dsl_dataset_t *ds = drc->drc_logical_ds; int err; /* - * XXX hack; seems the ds is still dirty and - * dsl_pool_zil_clean() expects it to have a ds_user_ptr - * (and zil), but clone_swap() can close it. + * XXX hack; seems the ds is still dirty and dsl_pool_zil_clean() + * expects it to have a ds_user_ptr (and zil), but clone_swap() + * can close it. */ txg_wait_synced(ds->ds_dir->dd_pool, 0); - if (ds != drc->drc_real_ds) { - /* we are doing an online recv */ - if (dsl_dataset_tryown(ds, FALSE, dmu_recv_tag)) { - err = dsl_dataset_clone_swap(drc->drc_real_ds, ds, - drc->drc_force); - if (err) - dsl_dataset_disown(ds, dmu_recv_tag); - } else { - err = EBUSY; - dsl_dataset_rele(ds, dmu_recv_tag); - } - /* dsl_dataset_destroy() will disown the ds */ + if (dsl_dataset_tryown(ds, FALSE, dmu_recv_tag)) { + err = dsl_dataset_clone_swap(drc->drc_real_ds, ds, + drc->drc_force); + if (err) + goto out; + } else { + mutex_exit(&ds->ds_recvlock); + dsl_dataset_rele(ds, dmu_recv_tag); (void) dsl_dataset_destroy(drc->drc_real_ds, dmu_recv_tag, B_FALSE); - mutex_exit(&drc->drc_logical_ds->ds_recvlock); - if (err) - return (err); + return (EBUSY); } resa.creation_time = drc->drc_drrb->drr_creation_time; @@ -1119,17 +1520,52 @@ dmu_recv_end(dmu_recv_cookie_t *drc) err = dsl_sync_task_do(ds->ds_dir->dd_pool, recv_end_check, recv_end_sync, ds, &resa, 3); if (err) { - if (drc->drc_newfs) { - ASSERT(ds == drc->drc_real_ds); - (void) dsl_dataset_destroy(ds, dmu_recv_tag, - B_FALSE); - return (err); - } else { - (void) dsl_dataset_rollback(ds, DMU_OST_NONE); - } + /* swap back */ + (void) dsl_dataset_clone_swap(drc->drc_real_ds, ds, B_TRUE); } - /* release the hold from dmu_recv_begin */ +out: + mutex_exit(&ds->ds_recvlock); dsl_dataset_disown(ds, dmu_recv_tag); + (void) dsl_dataset_destroy(drc->drc_real_ds, dmu_recv_tag, B_FALSE); return (err); } + +static int +dmu_recv_new_end(dmu_recv_cookie_t *drc) +{ + struct recvendsyncarg resa; + dsl_dataset_t *ds = drc->drc_logical_ds; + int err; + + /* + * XXX hack; seems the ds is still dirty and dsl_pool_zil_clean() + * expects it to have a ds_user_ptr (and zil), but clone_swap() + * can close it. + */ + txg_wait_synced(ds->ds_dir->dd_pool, 0); + + resa.creation_time = drc->drc_drrb->drr_creation_time; + resa.toguid = drc->drc_drrb->drr_toguid; + resa.tosnap = drc->drc_tosnap; + + err = dsl_sync_task_do(ds->ds_dir->dd_pool, + recv_end_check, recv_end_sync, ds, &resa, 3); + if (err) { + /* clean up the fs we just recv'd into */ + (void) dsl_dataset_destroy(ds, dmu_recv_tag, B_FALSE); + } else { + /* release the hold from dmu_recv_begin */ + dsl_dataset_disown(ds, dmu_recv_tag); + } + return (err); +} + +int +dmu_recv_end(dmu_recv_cookie_t *drc) +{ + if (drc->drc_logical_ds != drc->drc_real_ds) + return (dmu_recv_existing_end(drc)); + else + return (dmu_recv_new_end(drc)); +} diff --git a/module/zfs/dmu_traverse.c b/module/zfs/dmu_traverse.c index 89cbfad29..429c76ae1 100644 --- a/module/zfs/dmu_traverse.c +++ b/module/zfs/dmu_traverse.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -33,16 +32,10 @@ #include <sys/spa.h> #include <sys/zio.h> #include <sys/dmu_impl.h> +#include <sys/sa.h> +#include <sys/sa_impl.h> #include <sys/callb.h> -#define SET_BOOKMARK(zb, objset, object, level, blkid) \ -{ \ - (zb)->zb_objset = objset; \ - (zb)->zb_object = object; \ - (zb)->zb_level = level; \ - (zb)->zb_blkid = blkid; \ -} - struct prefetch_data { kmutex_t pd_mtx; kcondvar_t pd_cv; @@ -68,27 +61,28 @@ static int traverse_dnode(struct traverse_data *td, const dnode_phys_t *dnp, arc_buf_t *buf, uint64_t objset, uint64_t object); /* ARGSUSED */ -static void +static int traverse_zil_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg) { struct traverse_data *td = arg; zbookmark_t zb; if (bp->blk_birth == 0) - return; + return (0); if (claim_txg == 0 && bp->blk_birth >= spa_first_txg(td->td_spa)) - return; + return (0); + + SET_BOOKMARK(&zb, td->td_objset, ZB_ZIL_OBJECT, ZB_ZIL_LEVEL, + bp->blk_cksum.zc_word[ZIL_ZC_SEQ]); + + (void) td->td_func(td->td_spa, zilog, bp, NULL, &zb, NULL, td->td_arg); - zb.zb_objset = td->td_objset; - zb.zb_object = 0; - zb.zb_level = -1; - zb.zb_blkid = bp->blk_cksum.zc_word[ZIL_ZC_SEQ]; - VERIFY(0 == td->td_func(td->td_spa, bp, &zb, NULL, td->td_arg)); + return (0); } /* ARGSUSED */ -static void +static int traverse_zil_record(zilog_t *zilog, lr_t *lrc, void *arg, uint64_t claim_txg) { struct traverse_data *td = arg; @@ -99,17 +93,18 @@ traverse_zil_record(zilog_t *zilog, lr_t *lrc, void *arg, uint64_t claim_txg) zbookmark_t zb; if (bp->blk_birth == 0) - return; + return (0); if (claim_txg == 0 || bp->blk_birth < claim_txg) - return; + return (0); - zb.zb_objset = td->td_objset; - zb.zb_object = lr->lr_foid; - zb.zb_level = BP_GET_LEVEL(bp); - zb.zb_blkid = lr->lr_offset / BP_GET_LSIZE(bp); - VERIFY(0 == td->td_func(td->td_spa, bp, &zb, NULL, td->td_arg)); + SET_BOOKMARK(&zb, td->td_objset, lr->lr_foid, ZB_ZIL_LEVEL, + lr->lr_offset / BP_GET_LSIZE(bp)); + + (void) td->td_func(td->td_spa, zilog, bp, NULL, &zb, NULL, + td->td_arg); } + return (0); } static void @@ -120,7 +115,7 @@ traverse_zil(struct traverse_data *td, zil_header_t *zh) /* * We only want to visit blocks that have been claimed but not yet - * replayed (or, in read-only mode, blocks that *would* be claimed). + * replayed; plus, in read-only mode, blocks that are already stable. */ if (claim_txg == 0 && spa_writeable(td->td_spa)) return; @@ -138,12 +133,14 @@ traverse_visitbp(struct traverse_data *td, const dnode_phys_t *dnp, arc_buf_t *pbuf, blkptr_t *bp, const zbookmark_t *zb) { zbookmark_t czb; - int err = 0; + int err = 0, lasterr = 0; arc_buf_t *buf = NULL; struct prefetch_data *pd = td->td_pfd; + boolean_t hard = td->td_flags & TRAVERSE_HARD; if (bp->blk_birth == 0) { - err = td->td_func(td->td_spa, NULL, zb, dnp, td->td_arg); + err = td->td_func(td->td_spa, NULL, NULL, pbuf, zb, dnp, + td->td_arg); return (err); } @@ -163,7 +160,8 @@ traverse_visitbp(struct traverse_data *td, const dnode_phys_t *dnp, } if (td->td_flags & TRAVERSE_PRE) { - err = td->td_func(td->td_spa, bp, zb, dnp, td->td_arg); + err = td->td_func(td->td_spa, NULL, bp, pbuf, zb, dnp, + td->td_arg); if (err) return (err); } @@ -174,7 +172,7 @@ traverse_visitbp(struct traverse_data *td, const dnode_phys_t *dnp, blkptr_t *cbp; int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; - err = arc_read(NULL, td->td_spa, bp, pbuf, + err = dsl_read(NULL, td->td_spa, bp, pbuf, arc_getbuf_func, &buf, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); if (err) @@ -187,15 +185,18 @@ traverse_visitbp(struct traverse_data *td, const dnode_phys_t *dnp, zb->zb_level - 1, zb->zb_blkid * epb + i); err = traverse_visitbp(td, dnp, buf, cbp, &czb); - if (err) - break; + if (err) { + if (!hard) + break; + lasterr = err; + } } } else if (BP_GET_TYPE(bp) == DMU_OT_DNODE) { uint32_t flags = ARC_WAIT; int i; int epb = BP_GET_LSIZE(bp) >> DNODE_SHIFT; - err = arc_read(NULL, td->td_spa, bp, pbuf, + err = dsl_read(NULL, td->td_spa, bp, pbuf, arc_getbuf_func, &buf, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); if (err) @@ -203,18 +204,21 @@ traverse_visitbp(struct traverse_data *td, const dnode_phys_t *dnp, /* recursively visitbp() blocks below this */ dnp = buf->b_data; - for (i = 0; i < epb && err == 0; i++, dnp++) { + for (i = 0; i < epb; i++, dnp++) { err = traverse_dnode(td, dnp, buf, zb->zb_objset, zb->zb_blkid * epb + i); - if (err) - break; + if (err) { + if (!hard) + break; + lasterr = err; + } } } else if (BP_GET_TYPE(bp) == DMU_OT_OBJSET) { uint32_t flags = ARC_WAIT; objset_phys_t *osp; dnode_phys_t *dnp; - err = arc_read_nolock(NULL, td->td_spa, bp, + err = dsl_read_nolock(NULL, td->td_spa, bp, arc_getbuf_func, &buf, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); if (err) @@ -224,12 +228,21 @@ traverse_visitbp(struct traverse_data *td, const dnode_phys_t *dnp, traverse_zil(td, &osp->os_zil_header); dnp = &osp->os_meta_dnode; - err = traverse_dnode(td, dnp, buf, zb->zb_objset, 0); + err = traverse_dnode(td, dnp, buf, zb->zb_objset, + DMU_META_DNODE_OBJECT); + if (err && hard) { + lasterr = err; + err = 0; + } if (err == 0 && arc_buf_size(buf) >= sizeof (objset_phys_t)) { dnp = &osp->os_userused_dnode; err = traverse_dnode(td, dnp, buf, zb->zb_objset, DMU_USERUSED_OBJECT); } + if (err && hard) { + lasterr = err; + err = 0; + } if (err == 0 && arc_buf_size(buf) >= sizeof (objset_phys_t)) { dnp = &osp->os_groupused_dnode; err = traverse_dnode(td, dnp, buf, zb->zb_objset, @@ -240,33 +253,52 @@ traverse_visitbp(struct traverse_data *td, const dnode_phys_t *dnp, if (buf) (void) arc_buf_remove_ref(buf, &buf); - if (err == 0 && (td->td_flags & TRAVERSE_POST)) - err = td->td_func(td->td_spa, bp, zb, dnp, td->td_arg); + if (err == 0 && lasterr == 0 && (td->td_flags & TRAVERSE_POST)) { + err = td->td_func(td->td_spa, NULL, bp, pbuf, zb, dnp, + td->td_arg); + } - return (err); + return (err != 0 ? err : lasterr); } static int traverse_dnode(struct traverse_data *td, const dnode_phys_t *dnp, arc_buf_t *buf, uint64_t objset, uint64_t object) { - int j, err = 0; + int j, err = 0, lasterr = 0; zbookmark_t czb; + boolean_t hard = (td->td_flags & TRAVERSE_HARD); for (j = 0; j < dnp->dn_nblkptr; j++) { SET_BOOKMARK(&czb, objset, object, dnp->dn_nlevels - 1, j); err = traverse_visitbp(td, dnp, buf, (blkptr_t *)&dnp->dn_blkptr[j], &czb); - if (err) - break; + if (err) { + if (!hard) + break; + lasterr = err; + } } - return (err); + + if (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) { + SET_BOOKMARK(&czb, objset, + object, 0, DMU_SPILL_BLKID); + err = traverse_visitbp(td, dnp, buf, + (blkptr_t *)&dnp->dn_spill, &czb); + if (err) { + if (!hard) + return (err); + lasterr = err; + } + } + return (err != 0 ? err : lasterr); } /* ARGSUSED */ static int -traverse_prefetcher(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, - const dnode_phys_t *dnp, void *arg) +traverse_prefetcher(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, + arc_buf_t *pbuf, const zbookmark_t *zb, const dnode_phys_t *dnp, + void *arg) { struct prefetch_data *pfd = arg; uint32_t aflags = ARC_NOWAIT | ARC_PREFETCH; @@ -276,7 +308,8 @@ traverse_prefetcher(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, return (EINTR); if (bp == NULL || !((pfd->pd_flags & TRAVERSE_PREFETCH_DATA) || - BP_GET_TYPE(bp) == DMU_OT_DNODE || BP_GET_LEVEL(bp) > 0)) + BP_GET_TYPE(bp) == DMU_OT_DNODE || BP_GET_LEVEL(bp) > 0) || + BP_GET_TYPE(bp) == DMU_OT_INTENT_LOG) return (0); mutex_enter(&pfd->pd_mtx); @@ -286,7 +319,7 @@ traverse_prefetcher(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, cv_broadcast(&pfd->pd_cv); mutex_exit(&pfd->pd_mtx); - (void) arc_read_nolock(NULL, spa, bp, NULL, NULL, + (void) dsl_read(NULL, spa, bp, pbuf, NULL, NULL, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE, &aflags, zb); @@ -305,7 +338,8 @@ traverse_prefetch_thread(void *arg) td.td_arg = td_main->td_pfd; td.td_pfd = NULL; - SET_BOOKMARK(&czb, td.td_objset, 0, -1, 0); + SET_BOOKMARK(&czb, td.td_objset, + ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); (void) traverse_visitbp(&td, NULL, NULL, td.td_rootbp, &czb); mutex_enter(&td_main->td_pfd->pd_mtx); @@ -346,7 +380,8 @@ traverse_impl(spa_t *spa, uint64_t objset, blkptr_t *rootbp, &td, TQ_NOQUEUE)) pd.pd_exited = B_TRUE; - SET_BOOKMARK(&czb, objset, 0, -1, 0); + SET_BOOKMARK(&czb, objset, + ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); err = traverse_visitbp(&td, NULL, NULL, rootbp, &czb); mutex_enter(&pd.pd_mtx); @@ -378,43 +413,59 @@ traverse_dataset(dsl_dataset_t *ds, uint64_t txg_start, int flags, * NB: pool must not be changing on-disk (eg, from zdb or sync context). */ int -traverse_pool(spa_t *spa, blkptr_cb_t func, void *arg) +traverse_pool(spa_t *spa, uint64_t txg_start, int flags, + blkptr_cb_t func, void *arg) { - int err; + int err, lasterr = 0; uint64_t obj; dsl_pool_t *dp = spa_get_dsl(spa); objset_t *mos = dp->dp_meta_objset; + boolean_t hard = (flags & TRAVERSE_HARD); /* visit the MOS */ err = traverse_impl(spa, 0, spa_get_rootblkptr(spa), - 0, TRAVERSE_PRE, func, arg); + txg_start, flags, func, arg); if (err) return (err); /* visit each dataset */ - for (obj = 1; err == 0; err = dmu_object_next(mos, &obj, FALSE, 0)) { + for (obj = 1; err == 0 || (err != ESRCH && hard); + err = dmu_object_next(mos, &obj, FALSE, txg_start)) { dmu_object_info_t doi; err = dmu_object_info(mos, obj, &doi); - if (err) - return (err); + if (err) { + if (!hard) + return (err); + lasterr = err; + continue; + } if (doi.doi_type == DMU_OT_DSL_DATASET) { dsl_dataset_t *ds; + uint64_t txg = txg_start; + rw_enter(&dp->dp_config_rwlock, RW_READER); err = dsl_dataset_hold_obj(dp, obj, FTAG, &ds); rw_exit(&dp->dp_config_rwlock); - if (err) - return (err); - err = traverse_dataset(ds, - ds->ds_phys->ds_prev_snap_txg, TRAVERSE_PRE, - func, arg); + if (err) { + if (!hard) + return (err); + lasterr = err; + continue; + } + if (ds->ds_phys->ds_prev_snap_txg > txg) + txg = ds->ds_phys->ds_prev_snap_txg; + err = traverse_dataset(ds, txg, flags, func, arg); dsl_dataset_rele(ds, FTAG); - if (err) - return (err); + if (err) { + if (!hard) + return (err); + lasterr = err; + } } } if (err == ESRCH) err = 0; - return (err); + return (err != 0 ? err : lasterr); } diff --git a/module/zfs/dmu_tx.c b/module/zfs/dmu_tx.c index c6fbeeef0..5fc062c16 100644 --- a/module/zfs/dmu_tx.c +++ b/module/zfs/dmu_tx.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/dmu.h> @@ -33,7 +32,10 @@ #include <sys/dsl_pool.h> #include <sys/zap_impl.h> /* for fzap_default_block_shift */ #include <sys/spa.h> +#include <sys/sa.h> +#include <sys/sa_impl.h> #include <sys/zfs_context.h> +#include <sys/varargs.h> typedef void (*dmu_tx_hold_func_t)(dmu_tx_t *tx, struct dnode *dn, uint64_t arg1, uint64_t arg2); @@ -48,6 +50,8 @@ dmu_tx_create_dd(dsl_dir_t *dd) tx->tx_pool = dd->dd_pool; list_create(&tx->tx_holds, sizeof (dmu_tx_hold_t), offsetof(dmu_tx_hold_t, txh_node)); + list_create(&tx->tx_callbacks, sizeof (dmu_tx_callback_t), + offsetof(dmu_tx_callback_t, dcb_node)); #ifdef ZFS_DEBUG refcount_create(&tx->tx_space_written); refcount_create(&tx->tx_space_freed); @@ -58,9 +62,9 @@ dmu_tx_create_dd(dsl_dir_t *dd) dmu_tx_t * dmu_tx_create(objset_t *os) { - dmu_tx_t *tx = dmu_tx_create_dd(os->os->os_dsl_dataset->ds_dir); + dmu_tx_t *tx = dmu_tx_create_dd(os->os_dsl_dataset->ds_dir); tx->tx_objset = os; - tx->tx_lastsnap_txg = dsl_dataset_prev_snap_txg(os->os->os_dsl_dataset); + tx->tx_lastsnap_txg = dsl_dataset_prev_snap_txg(os->os_dsl_dataset); return (tx); } @@ -98,7 +102,7 @@ dmu_tx_hold_object_impl(dmu_tx_t *tx, objset_t *os, uint64_t object, int err; if (object != DMU_NEW_OBJECT) { - err = dnode_hold(os->os, object, tx, &dn); + err = dnode_hold(os, object, tx, &dn); if (err) { tx->tx_err = err; return (NULL); @@ -161,38 +165,47 @@ dmu_tx_check_ioerr(zio_t *zio, dnode_t *dn, int level, uint64_t blkid) } static void -dmu_tx_count_indirects(dmu_tx_hold_t *txh, dmu_buf_impl_t *db, - boolean_t freeable, dmu_buf_impl_t **history) +dmu_tx_count_twig(dmu_tx_hold_t *txh, dnode_t *dn, dmu_buf_impl_t *db, + int level, uint64_t blkid, boolean_t freeable, uint64_t *history) { - int i = db->db_level + 1; - dnode_t *dn = db->db_dnode; - - if (i >= dn->dn_nlevels) + objset_t *os = dn->dn_objset; + dsl_dataset_t *ds = os->os_dsl_dataset; + int epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT; + dmu_buf_impl_t *parent = NULL; + blkptr_t *bp = NULL; + uint64_t space; + + if (level >= dn->dn_nlevels || history[level] == blkid) return; - db = db->db_parent; - if (db == NULL) { - uint64_t lvls = dn->dn_nlevels - i; + history[level] = blkid; - txh->txh_space_towrite += lvls << dn->dn_indblkshift; - return; + space = (level == 0) ? dn->dn_datablksz : (1ULL << dn->dn_indblkshift); + + if (db == NULL || db == dn->dn_dbuf) { + ASSERT(level != 0); + db = NULL; + } else { + ASSERT(db->db_dnode == dn); + ASSERT(db->db_level == level); + ASSERT(db->db.db_size == space); + ASSERT(db->db_blkid == blkid); + bp = db->db_blkptr; + parent = db->db_parent; } - if (db != history[i]) { - dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset; - uint64_t space = 1ULL << dn->dn_indblkshift; + freeable = (bp && (freeable || + dsl_dataset_block_freeable(ds, bp, bp->blk_birth))); - freeable = (db->db_blkptr && (freeable || - dsl_dataset_block_freeable(ds, db->db_blkptr->blk_birth))); - if (freeable) - txh->txh_space_tooverwrite += space; - else - txh->txh_space_towrite += space; - if (db->db_blkptr) - txh->txh_space_tounref += space; - history[i] = db; - dmu_tx_count_indirects(txh, db, freeable, history); - } + if (freeable) + txh->txh_space_tooverwrite += space; + else + txh->txh_space_towrite += space; + if (bp) + txh->txh_space_tounref += bp_get_dsize(os->os_spa, bp); + + dmu_tx_count_twig(txh, dn, parent, level + 1, + blkid >> epbs, freeable, history); } /* ARGSUSED */ @@ -213,7 +226,7 @@ dmu_tx_count_write(dmu_tx_hold_t *txh, uint64_t off, uint64_t len) max_ibs = DN_MAX_INDBLKSHIFT; if (dn) { - dmu_buf_impl_t *last[DN_MAX_LEVELS]; + uint64_t history[DN_MAX_LEVELS]; int nlvls = dn->dn_nlevels; int delta; @@ -289,29 +302,24 @@ dmu_tx_count_write(dmu_tx_hold_t *txh, uint64_t off, uint64_t len) * If this write is not off the end of the file * we need to account for overwrites/unref. */ - if (start <= dn->dn_maxblkid) - bzero(last, sizeof (dmu_buf_impl_t *) * DN_MAX_LEVELS); + if (start <= dn->dn_maxblkid) { + for (int l = 0; l < DN_MAX_LEVELS; l++) + history[l] = -1ULL; + } while (start <= dn->dn_maxblkid) { - spa_t *spa = txh->txh_tx->tx_pool->dp_spa; - dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset; dmu_buf_impl_t *db; rw_enter(&dn->dn_struct_rwlock, RW_READER); - db = dbuf_hold_level(dn, 0, start, FTAG); + err = dbuf_hold_impl(dn, 0, start, FALSE, FTAG, &db); rw_exit(&dn->dn_struct_rwlock); - if (db->db_blkptr && dsl_dataset_block_freeable(ds, - db->db_blkptr->blk_birth)) { - dprintf_bp(db->db_blkptr, "can free old%s", ""); - txh->txh_space_tooverwrite += dn->dn_datablksz; - txh->txh_space_tounref += dn->dn_datablksz; - dmu_tx_count_indirects(txh, db, TRUE, last); - } else { - txh->txh_space_towrite += dn->dn_datablksz; - if (db->db_blkptr) - txh->txh_space_tounref += - bp_get_dasize(spa, db->db_blkptr); - dmu_tx_count_indirects(txh, db, FALSE, last); + + if (err) { + txh->txh_tx->tx_err = err; + return; } + + dmu_tx_count_twig(txh, dn, db, 0, start, B_FALSE, + history); dbuf_rele(db, FTAG); if (++start > end) { /* @@ -376,13 +384,13 @@ static void dmu_tx_count_dnode(dmu_tx_hold_t *txh) { dnode_t *dn = txh->txh_dnode; - dnode_t *mdn = txh->txh_tx->tx_objset->os->os_meta_dnode; + dnode_t *mdn = txh->txh_tx->tx_objset->os_meta_dnode; uint64_t space = mdn->dn_datablksz + ((mdn->dn_nlevels-1) << mdn->dn_indblkshift); if (dn && dn->dn_dbuf->db_blkptr && dsl_dataset_block_freeable(dn->dn_objset->os_dsl_dataset, - dn->dn_dbuf->db_blkptr->blk_birth)) { + dn->dn_dbuf->db_blkptr, dn->dn_dbuf->db_blkptr->blk_birth)) { txh->txh_space_tooverwrite += space; txh->txh_space_tounref += space; } else { @@ -427,7 +435,7 @@ dmu_tx_count_free(dmu_tx_hold_t *txh, uint64_t off, uint64_t len) * The struct_rwlock protects us against dn_nlevels * changing, in case (against all odds) we manage to dirty & * sync out the changes after we check for being dirty. - * Also, dbuf_hold_level() wants us to have the struct_rwlock. + * Also, dbuf_hold_impl() wants us to have the struct_rwlock. */ rw_enter(&dn->dn_struct_rwlock, RW_READER); epbs = dn->dn_indblkshift - SPA_BLKPTRSHIFT; @@ -457,9 +465,9 @@ dmu_tx_count_free(dmu_tx_hold_t *txh, uint64_t off, uint64_t len) blkptr_t *bp = dn->dn_phys->dn_blkptr; ASSERT3U(blkid + i, <, dn->dn_nblkptr); bp += blkid + i; - if (dsl_dataset_block_freeable(ds, bp->blk_birth)) { + if (dsl_dataset_block_freeable(ds, bp, bp->blk_birth)) { dprintf_bp(bp, "can free old%s", ""); - space += bp_get_dasize(spa, bp); + space += bp_get_dsize(spa, bp); } unref += BP_GET_ASIZE(bp); } @@ -515,14 +523,22 @@ dmu_tx_count_free(dmu_tx_hold_t *txh, uint64_t off, uint64_t len) blkoff = P2PHASE(blkid, epb); tochk = MIN(epb - blkoff, nblks); - dbuf = dbuf_hold_level(dn, 1, blkid >> epbs, FTAG); - - txh->txh_memory_tohold += dbuf->db.db_size; - if (txh->txh_memory_tohold > DMU_MAX_ACCESS) { - txh->txh_tx->tx_err = E2BIG; - dbuf_rele(dbuf, FTAG); + err = dbuf_hold_impl(dn, 1, blkid >> epbs, FALSE, FTAG, &dbuf); + if (err) { + txh->txh_tx->tx_err = err; break; } + + txh->txh_memory_tohold += dbuf->db.db_size; + + /* + * We don't check memory_tohold against DMU_MAX_ACCESS because + * memory_tohold is an over-estimation (especially the >L1 + * indirect blocks), so it could fail. Callers should have + * already verified that they will not be holding too much + * memory. + */ + err = dbuf_read(dbuf, NULL, DB_RF_HAVESTRUCT | DB_RF_CANFAIL); if (err != 0) { txh->txh_tx->tx_err = err; @@ -534,9 +550,10 @@ dmu_tx_count_free(dmu_tx_hold_t *txh, uint64_t off, uint64_t len) bp += blkoff; for (i = 0; i < tochk; i++) { - if (dsl_dataset_block_freeable(ds, bp[i].blk_birth)) { + if (dsl_dataset_block_freeable(ds, &bp[i], + bp[i].blk_birth)) { dprintf_bp(&bp[i], "can free old%s", ""); - space += bp_get_dasize(spa, &bp[i]); + space += bp_get_dsize(spa, &bp[i]); } unref += BP_GET_ASIZE(bp); } @@ -581,6 +598,8 @@ dmu_tx_hold_free(dmu_tx_t *tx, uint64_t object, uint64_t off, uint64_t len) if (len != DMU_OBJECT_END) dmu_tx_count_write(txh, off+len, 1); + dmu_tx_count_dnode(txh); + if (off >= (dn->dn_maxblkid+1) * dn->dn_datablksz) return; if (len == DMU_OBJECT_END) @@ -623,7 +642,6 @@ dmu_tx_hold_free(dmu_tx_t *tx, uint64_t object, uint64_t off, uint64_t len) } } - dmu_tx_count_dnode(txh); dmu_tx_count_free(txh, off, len); } @@ -673,6 +691,7 @@ dmu_tx_hold_zap(dmu_tx_t *tx, uint64_t object, int add, const char *name) * the size will change between now and the dbuf dirty call. */ if (dsl_dataset_block_freeable(dn->dn_objset->os_dsl_dataset, + &dn->dn_phys->dn_blkptr[0], dn->dn_phys->dn_blkptr[0].blk_birth)) { txh->txh_space_tooverwrite += SPA_MAXBLOCKSIZE; } else { @@ -688,7 +707,7 @@ dmu_tx_hold_zap(dmu_tx_t *tx, uint64_t object, int add, const char *name) * access the name in this fat-zap so that we'll check * for i/o errors to the leaf blocks, etc. */ - err = zap_lookup(&dn->dn_objset->os, dn->dn_object, name, + err = zap_lookup(dn->dn_objset, dn->dn_object, name, 8, 0, NULL); if (err == EIO) { tx->tx_err = err; @@ -696,7 +715,7 @@ dmu_tx_hold_zap(dmu_tx_t *tx, uint64_t object, int add, const char *name) } } - err = zap_count_write(&dn->dn_objset->os, dn->dn_object, name, add, + err = zap_count_write(dn->dn_objset, dn->dn_object, name, add, &txh->txh_space_towrite, &txh->txh_space_tooverwrite); /* @@ -771,7 +790,7 @@ dmu_tx_dirty_buf(dmu_tx_t *tx, dmu_buf_impl_t *db) dnode_t *dn = db->db_dnode; ASSERT(tx->tx_txg != 0); - ASSERT(tx->tx_objset == NULL || dn->dn_objset == tx->tx_objset->os); + ASSERT(tx->tx_objset == NULL || dn->dn_objset == tx->tx_objset); ASSERT3U(dn->dn_object, ==, db->db.db_object); if (tx->tx_anyobj) @@ -808,10 +827,11 @@ dmu_tx_dirty_buf(dmu_tx_t *tx, dmu_buf_impl_t *db) match_offset = TRUE; /* * We will let this hold work for the bonus - * buffer so that we don't need to hold it - * when creating a new object. + * or spill buffer so that we don't need to + * hold it when creating a new object. */ - if (blkid == DB_BONUS_BLKID) + if (blkid == DMU_BONUS_BLKID || + blkid == DMU_SPILL_BLKID) match_offset = TRUE; /* * They might have to increase nlevels, @@ -832,8 +852,12 @@ dmu_tx_dirty_buf(dmu_tx_t *tx, dmu_buf_impl_t *db) txh->txh_arg2 == DMU_OBJECT_END)) match_offset = TRUE; break; + case THT_SPILL: + if (blkid == DMU_SPILL_BLKID) + match_offset = TRUE; + break; case THT_BONUS: - if (blkid == DB_BONUS_BLKID) + if (blkid == DMU_BONUS_BLKID) match_offset = TRUE; break; case THT_ZAP: @@ -931,7 +955,7 @@ dmu_tx_try_assign(dmu_tx_t *tx, uint64_t txg_how) * assume that we won't be able to free or overwrite anything. */ if (tx->tx_objset && - dsl_dataset_prev_snap_txg(tx->tx_objset->os->os_dsl_dataset) > + dsl_dataset_prev_snap_txg(tx->tx_objset->os_dsl_dataset) > tx->tx_lastsnap_txg) { towrite += tooverwrite; tooverwrite = tofree = 0; @@ -1112,8 +1136,13 @@ dmu_tx_commit(dmu_tx_t *tx) if (tx->tx_tempreserve_cookie) dsl_dir_tempreserve_clear(tx->tx_tempreserve_cookie, tx); + if (!list_is_empty(&tx->tx_callbacks)) + txg_register_callbacks(&tx->tx_txgh, &tx->tx_callbacks); + if (tx->tx_anyobj == FALSE) txg_rele_to_sync(&tx->tx_txgh); + + list_destroy(&tx->tx_callbacks); list_destroy(&tx->tx_holds); #ifdef ZFS_DEBUG dprintf("towrite=%llu written=%llu tofree=%llu freed=%llu\n", @@ -1142,6 +1171,14 @@ dmu_tx_abort(dmu_tx_t *tx) if (dn != NULL) dnode_rele(dn, tx); } + + /* + * Call any registered callbacks with an error code. + */ + if (!list_is_empty(&tx->tx_callbacks)) + dmu_tx_do_callbacks(&tx->tx_callbacks, ECANCELED); + + list_destroy(&tx->tx_callbacks); list_destroy(&tx->tx_holds); #ifdef ZFS_DEBUG refcount_destroy_many(&tx->tx_space_written, @@ -1158,3 +1195,169 @@ dmu_tx_get_txg(dmu_tx_t *tx) ASSERT(tx->tx_txg != 0); return (tx->tx_txg); } + +void +dmu_tx_callback_register(dmu_tx_t *tx, dmu_tx_callback_func_t *func, void *data) +{ + dmu_tx_callback_t *dcb; + + dcb = kmem_alloc(sizeof (dmu_tx_callback_t), KM_SLEEP); + + dcb->dcb_func = func; + dcb->dcb_data = data; + + list_insert_tail(&tx->tx_callbacks, dcb); +} + +/* + * Call all the commit callbacks on a list, with a given error code. + */ +void +dmu_tx_do_callbacks(list_t *cb_list, int error) +{ + dmu_tx_callback_t *dcb; + + while (dcb = list_head(cb_list)) { + list_remove(cb_list, dcb); + dcb->dcb_func(dcb->dcb_data, error); + kmem_free(dcb, sizeof (dmu_tx_callback_t)); + } +} + +/* + * Interface to hold a bunch of attributes. + * used for creating new files. + * attrsize is the total size of all attributes + * to be added during object creation + * + * For updating/adding a single attribute dmu_tx_hold_sa() should be used. + */ + +/* + * hold necessary attribute name for attribute registration. + * should be a very rare case where this is needed. If it does + * happen it would only happen on the first write to the file system. + */ +static void +dmu_tx_sa_registration_hold(sa_os_t *sa, dmu_tx_t *tx) +{ + int i; + + if (!sa->sa_need_attr_registration) + return; + + for (i = 0; i != sa->sa_num_attrs; i++) { + if (!sa->sa_attr_table[i].sa_registered) { + if (sa->sa_reg_attr_obj) + dmu_tx_hold_zap(tx, sa->sa_reg_attr_obj, + B_TRUE, sa->sa_attr_table[i].sa_name); + else + dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, + B_TRUE, sa->sa_attr_table[i].sa_name); + } + } +} + + +void +dmu_tx_hold_spill(dmu_tx_t *tx, uint64_t object) +{ + dnode_t *dn; + dmu_tx_hold_t *txh; + blkptr_t *bp; + + txh = dmu_tx_hold_object_impl(tx, tx->tx_objset, object, + THT_SPILL, 0, 0); + + dn = txh->txh_dnode; + + if (dn == NULL) + return; + + /* If blkptr doesn't exist then add space to towrite */ + bp = &dn->dn_phys->dn_spill; + if (BP_IS_HOLE(bp)) { + txh->txh_space_towrite += SPA_MAXBLOCKSIZE; + txh->txh_space_tounref = 0; + } else { + if (dsl_dataset_block_freeable(dn->dn_objset->os_dsl_dataset, + bp, bp->blk_birth)) + txh->txh_space_tooverwrite += SPA_MAXBLOCKSIZE; + else + txh->txh_space_towrite += SPA_MAXBLOCKSIZE; + if (bp->blk_birth) + txh->txh_space_tounref += SPA_MAXBLOCKSIZE; + } +} + +void +dmu_tx_hold_sa_create(dmu_tx_t *tx, int attrsize) +{ + sa_os_t *sa = tx->tx_objset->os_sa; + + dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); + + if (tx->tx_objset->os_sa->sa_master_obj == 0) + return; + + if (tx->tx_objset->os_sa->sa_layout_attr_obj) + dmu_tx_hold_zap(tx, sa->sa_layout_attr_obj, B_TRUE, NULL); + else { + dmu_tx_hold_zap(tx, sa->sa_master_obj, B_TRUE, SA_LAYOUTS); + dmu_tx_hold_zap(tx, sa->sa_master_obj, B_TRUE, SA_REGISTRY); + dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL); + dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL); + } + + dmu_tx_sa_registration_hold(sa, tx); + + if (attrsize <= DN_MAX_BONUSLEN && !sa->sa_force_spill) + return; + + (void) dmu_tx_hold_object_impl(tx, tx->tx_objset, DMU_NEW_OBJECT, + THT_SPILL, 0, 0); +} + +/* + * Hold SA attribute + * + * dmu_tx_hold_sa(dmu_tx_t *tx, sa_handle_t *, attribute, add, size) + * + * variable_size is the total size of all variable sized attributes + * passed to this function. It is not the total size of all + * variable size attributes that *may* exist on this object. + */ +void +dmu_tx_hold_sa(dmu_tx_t *tx, sa_handle_t *hdl, boolean_t may_grow) +{ + uint64_t object; + sa_os_t *sa = tx->tx_objset->os_sa; + + ASSERT(hdl != NULL); + + object = sa_handle_object(hdl); + + dmu_tx_hold_bonus(tx, object); + + if (tx->tx_objset->os_sa->sa_master_obj == 0) + return; + + if (tx->tx_objset->os_sa->sa_reg_attr_obj == 0 || + tx->tx_objset->os_sa->sa_layout_attr_obj == 0) { + dmu_tx_hold_zap(tx, sa->sa_master_obj, B_TRUE, SA_LAYOUTS); + dmu_tx_hold_zap(tx, sa->sa_master_obj, B_TRUE, SA_REGISTRY); + dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL); + dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL); + } + + dmu_tx_sa_registration_hold(sa, tx); + + if (may_grow && tx->tx_objset->os_sa->sa_layout_attr_obj) + dmu_tx_hold_zap(tx, sa->sa_layout_attr_obj, B_TRUE, NULL); + + if (sa->sa_force_spill || may_grow || hdl->sa_spill || + ((dmu_buf_impl_t *)hdl->sa_bonus)->db_dnode->dn_have_spill) { + ASSERT(tx->tx_txg == 0); + dmu_tx_hold_spill(tx, object); + } +} diff --git a/module/zfs/dmu_zfetch.c b/module/zfs/dmu_zfetch.c index 4d79fe98e..37037c30f 100644 --- a/module/zfs/dmu_zfetch.c +++ b/module/zfs/dmu_zfetch.c @@ -19,18 +19,17 @@ * CDDL HEADER END */ /* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #include <sys/dnode.h> #include <sys/dmu_objset.h> #include <sys/dmu_zfetch.h> #include <sys/dmu.h> #include <sys/dbuf.h> +#include <sys/kstat.h> /* * I'm against tune-ables, but these should probably exist as tweakable globals @@ -59,6 +58,41 @@ static zstream_t *dmu_zfetch_stream_reclaim(zfetch_t *); static void dmu_zfetch_stream_remove(zfetch_t *, zstream_t *); static int dmu_zfetch_streams_equal(zstream_t *, zstream_t *); +typedef struct zfetch_stats { + kstat_named_t zfetchstat_hits; + kstat_named_t zfetchstat_misses; + kstat_named_t zfetchstat_colinear_hits; + kstat_named_t zfetchstat_colinear_misses; + kstat_named_t zfetchstat_stride_hits; + kstat_named_t zfetchstat_stride_misses; + kstat_named_t zfetchstat_reclaim_successes; + kstat_named_t zfetchstat_reclaim_failures; + kstat_named_t zfetchstat_stream_resets; + kstat_named_t zfetchstat_stream_noresets; + kstat_named_t zfetchstat_bogus_streams; +} zfetch_stats_t; + +static zfetch_stats_t zfetch_stats = { + { "hits", KSTAT_DATA_UINT64 }, + { "misses", KSTAT_DATA_UINT64 }, + { "colinear_hits", KSTAT_DATA_UINT64 }, + { "colinear_misses", KSTAT_DATA_UINT64 }, + { "stride_hits", KSTAT_DATA_UINT64 }, + { "stride_misses", KSTAT_DATA_UINT64 }, + { "reclaim_successes", KSTAT_DATA_UINT64 }, + { "reclaim_failures", KSTAT_DATA_UINT64 }, + { "streams_resets", KSTAT_DATA_UINT64 }, + { "streams_noresets", KSTAT_DATA_UINT64 }, + { "bogus_streams", KSTAT_DATA_UINT64 }, +}; + +#define ZFETCHSTAT_INCR(stat, val) \ + atomic_add_64(&zfetch_stats.stat.value.ui64, (val)); + +#define ZFETCHSTAT_BUMP(stat) ZFETCHSTAT_INCR(stat, 1); + +kstat_t *zfetch_ksp; + /* * Given a zfetch structure and a zstream structure, determine whether the * blocks to be read are part of a co-linear pair of existing prefetch @@ -192,7 +226,30 @@ dmu_zfetch_dofetch(zfetch_t *zf, zstream_t *zs) break; } zs->zst_ph_offset = prefetch_tail; - zs->zst_last = lbolt; + zs->zst_last = ddi_get_lbolt(); +} + +void +zfetch_init(void) +{ + + zfetch_ksp = kstat_create("zfs", 0, "zfetchstats", "misc", + KSTAT_TYPE_NAMED, sizeof (zfetch_stats) / sizeof (kstat_named_t), + KSTAT_FLAG_VIRTUAL); + + if (zfetch_ksp != NULL) { + zfetch_ksp->ks_data = &zfetch_stats; + kstat_install(zfetch_ksp); + } +} + +void +zfetch_fini(void) +{ + if (zfetch_ksp != NULL) { + kstat_delete(zfetch_ksp); + zfetch_ksp = NULL; + } } /* @@ -265,7 +322,7 @@ dmu_zfetch_fetchsz(dnode_t *dn, uint64_t blkid, uint64_t nblks) } /* - * given a zfetch and a zsearch structure, see if there is an associated zstream + * given a zfetch and a zstream structure, see if there is an associated zstream * for this block read. If so, it starts a prefetch for the stream it * located and returns true, otherwise it returns false */ @@ -297,6 +354,7 @@ top: */ if (zs->zst_len == 0) { /* bogus stream */ + ZFETCHSTAT_BUMP(zfetchstat_bogus_streams); continue; } @@ -306,9 +364,14 @@ top: */ if (zh->zst_offset >= zs->zst_offset && zh->zst_offset < zs->zst_offset + zs->zst_len) { - /* already fetched */ - rc = 1; - goto out; + if (prefetched) { + /* already fetched */ + ZFETCHSTAT_BUMP(zfetchstat_stride_hits); + rc = 1; + goto out; + } else { + ZFETCHSTAT_BUMP(zfetchstat_stride_misses); + } } /* @@ -413,6 +476,7 @@ top: if (reset) { zstream_t *remove = zs; + ZFETCHSTAT_BUMP(zfetchstat_stream_resets); rc = 0; mutex_exit(&zs->zst_lock); rw_exit(&zf->zf_rwlock); @@ -431,6 +495,7 @@ top: } } } else { + ZFETCHSTAT_BUMP(zfetchstat_stream_noresets); rc = 1; dmu_zfetch_dofetch(zf, zs); mutex_exit(&zs->zst_lock); @@ -487,13 +552,12 @@ dmu_zfetch_stream_insert(zfetch_t *zf, zstream_t *zs) zs_next = list_next(&zf->zf_stream, zs_walk); if (dmu_zfetch_streams_equal(zs_walk, zs)) { - return (0); + return (0); } } list_insert_head(&zf->zf_stream, zs); zf->zf_stream_cnt++; - return (1); } @@ -513,7 +577,7 @@ dmu_zfetch_stream_reclaim(zfetch_t *zf) for (zs = list_head(&zf->zf_stream); zs; zs = list_next(&zf->zf_stream, zs)) { - if (((lbolt - zs->zst_last) / hz) > zfetch_min_sec_reap) + if (((ddi_get_lbolt() - zs->zst_last)/hz) > zfetch_min_sec_reap) break; } @@ -597,8 +661,15 @@ dmu_zfetch(zfetch_t *zf, uint64_t offset, uint64_t size, int prefetched) P2ALIGN(offset, blksz)) >> blkshft; fetched = dmu_zfetch_find(zf, &zst, prefetched); - if (!fetched) { - fetched = dmu_zfetch_colinear(zf, &zst); + if (fetched) { + ZFETCHSTAT_BUMP(zfetchstat_hits); + } else { + ZFETCHSTAT_BUMP(zfetchstat_misses); + if (fetched = dmu_zfetch_colinear(zf, &zst)) { + ZFETCHSTAT_BUMP(zfetchstat_colinear_hits); + } else { + ZFETCHSTAT_BUMP(zfetchstat_colinear_misses); + } } if (!fetched) { @@ -608,11 +679,14 @@ dmu_zfetch(zfetch_t *zf, uint64_t offset, uint64_t size, int prefetched) * we still couldn't find a stream, drop the lock, and allocate * one if possible. Otherwise, give up and go home. */ - if (newstream == NULL) { + if (newstream) { + ZFETCHSTAT_BUMP(zfetchstat_reclaim_successes); + } else { uint64_t maxblocks; uint32_t max_streams; uint32_t cur_streams; + ZFETCHSTAT_BUMP(zfetchstat_reclaim_failures); cur_streams = zf->zf_stream_cnt; maxblocks = zf->zf_dnode->dn_maxblkid; @@ -625,7 +699,6 @@ dmu_zfetch(zfetch_t *zf, uint64_t offset, uint64_t size, int prefetched) if (cur_streams >= max_streams) { return; } - newstream = kmem_zalloc(sizeof (zstream_t), KM_SLEEP); } @@ -635,7 +708,7 @@ dmu_zfetch(zfetch_t *zf, uint64_t offset, uint64_t size, int prefetched) newstream->zst_ph_offset = zst.zst_len + zst.zst_offset; newstream->zst_cap = zst.zst_len; newstream->zst_direction = ZFETCH_FORWARD; - newstream->zst_last = lbolt; + newstream->zst_last = ddi_get_lbolt(); mutex_init(&newstream->zst_lock, NULL, MUTEX_DEFAULT, NULL); diff --git a/module/zfs/dnode.c b/module/zfs/dnode.c index d82e72a14..c16902d21 100644 --- a/module/zfs/dnode.c +++ b/module/zfs/dnode.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -210,6 +209,11 @@ dnode_byteswap(dnode_phys_t *dnp) ASSERT3U(dnp->dn_bonustype, <, DMU_OT_NUMTYPES); dmu_ot[dnp->dn_bonustype].ot_byteswap(dnp->dn_bonus + off, len); } + + /* Swap SPILL block if we have one */ + if (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) + byteswap_uint64_array(&dnp->dn_spill, sizeof (blkptr_t)); + } void @@ -258,6 +262,27 @@ dnode_setbonuslen(dnode_t *dn, int newsize, dmu_tx_t *tx) rw_exit(&dn->dn_struct_rwlock); } +void +dnode_setbonus_type(dnode_t *dn, dmu_object_type_t newtype, dmu_tx_t *tx) +{ + ASSERT3U(refcount_count(&dn->dn_holds), >=, 1); + dnode_setdirty(dn, tx); + rw_enter(&dn->dn_struct_rwlock, RW_WRITER); + dn->dn_bonustype = newtype; + dn->dn_next_bonustype[tx->tx_txg & TXG_MASK] = dn->dn_bonustype; + rw_exit(&dn->dn_struct_rwlock); +} + +void +dnode_rm_spill(dnode_t *dn, dmu_tx_t *tx) +{ + ASSERT3U(refcount_count(&dn->dn_holds), >=, 1); + ASSERT(RW_WRITE_HELD(&dn->dn_struct_rwlock)); + dnode_setdirty(dn, tx); + dn->dn_rm_spillblk[tx->tx_txg&TXG_MASK] = DN_KILL_SPILLBLK; + dn->dn_have_spill = B_FALSE; +} + static void dnode_setdblksz(dnode_t *dn, int size) { @@ -272,7 +297,7 @@ dnode_setdblksz(dnode_t *dn, int size) } static dnode_t * -dnode_create(objset_impl_t *os, dnode_phys_t *dnp, dmu_buf_impl_t *db, +dnode_create(objset_t *os, dnode_phys_t *dnp, dmu_buf_impl_t *db, uint64_t object) { dnode_t *dn = kmem_cache_alloc(dnode_cache, KM_SLEEP); @@ -294,6 +319,8 @@ dnode_create(objset_impl_t *os, dnode_phys_t *dnp, dmu_buf_impl_t *db, dn->dn_bonustype = dnp->dn_bonustype; dn->dn_bonuslen = dnp->dn_bonuslen; dn->dn_maxblkid = dnp->dn_maxblkid; + dn->dn_have_spill = ((dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) != 0); + dn->dn_id_flags = 0; dmu_zfetch_init(&dn->dn_zfetch, dn); @@ -309,7 +336,7 @@ dnode_create(objset_impl_t *os, dnode_phys_t *dnp, dmu_buf_impl_t *db, static void dnode_destroy(dnode_t *dn) { - objset_impl_t *os = dn->dn_objset; + objset_t *os = dn->dn_objset; #ifdef ZFS_DEBUG int i; @@ -321,7 +348,7 @@ dnode_destroy(dnode_t *dn) } ASSERT(NULL == list_head(&dn->dn_dbufs)); #endif - ASSERT(dn->dn_oldphys == NULL); + ASSERT((dn->dn_id_flags & DN_ID_NEW_EXIST) == 0); mutex_enter(&os->os_lock); list_remove(&os->os_dnodes, dn); @@ -368,6 +395,7 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs, ASSERT(ot != DMU_OT_NONE); ASSERT3U(ot, <, DMU_OT_NUMTYPES); ASSERT((bonustype == DMU_OT_NONE && bonuslen == 0) || + (bonustype == DMU_OT_SA && bonuslen == 0) || (bonustype != DMU_OT_NONE && bonuslen != 0)); ASSERT3U(bonustype, <, DMU_OT_NUMTYPES); ASSERT3U(bonuslen, <=, DN_MAX_BONUSLEN); @@ -383,6 +411,8 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs, ASSERT3U(dn->dn_next_nlevels[i], ==, 0); ASSERT3U(dn->dn_next_indblkshift[i], ==, 0); ASSERT3U(dn->dn_next_bonuslen[i], ==, 0); + ASSERT3U(dn->dn_next_bonustype[i], ==, 0); + ASSERT3U(dn->dn_rm_spillblk[i], ==, 0); ASSERT3U(dn->dn_next_blksz[i], ==, 0); ASSERT(!list_link_active(&dn->dn_dirty_link[i])); ASSERT3P(list_head(&dn->dn_dirty_records[i]), ==, NULL); @@ -393,7 +423,11 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs, dnode_setdblksz(dn, blocksize); dn->dn_indblkshift = ibs; dn->dn_nlevels = 1; - dn->dn_nblkptr = 1 + ((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT); + if (bonustype == DMU_OT_SA) /* Maximize bonus space for SA */ + dn->dn_nblkptr = 1; + else + dn->dn_nblkptr = 1 + + ((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT); dn->dn_bonustype = bonustype; dn->dn_bonuslen = bonuslen; dn->dn_checksum = ZIO_CHECKSUM_INHERIT; @@ -407,10 +441,12 @@ dnode_allocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, int ibs, } dn->dn_allocated_txg = tx->tx_txg; + dn->dn_id_flags = 0; dnode_setdirty(dn, tx); dn->dn_next_indblkshift[tx->tx_txg & TXG_MASK] = ibs; dn->dn_next_bonuslen[tx->tx_txg & TXG_MASK] = dn->dn_bonuslen; + dn->dn_next_bonustype[tx->tx_txg & TXG_MASK] = dn->dn_bonustype; dn->dn_next_blksz[tx->tx_txg & TXG_MASK] = dn->dn_datablksz; } @@ -426,13 +462,16 @@ dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT || dmu_tx_private_ok(tx)); ASSERT(tx->tx_txg != 0); ASSERT((bonustype == DMU_OT_NONE && bonuslen == 0) || - (bonustype != DMU_OT_NONE && bonuslen != 0)); + (bonustype != DMU_OT_NONE && bonuslen != 0) || + (bonustype == DMU_OT_SA && bonuslen == 0)); ASSERT3U(bonustype, <, DMU_OT_NUMTYPES); ASSERT3U(bonuslen, <=, DN_MAX_BONUSLEN); /* clean up any unreferenced dbufs */ dnode_evict_dbufs(dn); + dn->dn_id_flags = 0; + rw_enter(&dn->dn_struct_rwlock, RW_WRITER); dnode_setdirty(dn, tx); if (dn->dn_datablksz != blocksize) { @@ -445,9 +484,19 @@ dnode_reallocate(dnode_t *dn, dmu_object_type_t ot, int blocksize, } if (dn->dn_bonuslen != bonuslen) dn->dn_next_bonuslen[tx->tx_txg&TXG_MASK] = bonuslen; - nblkptr = 1 + ((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT); + + if (bonustype == DMU_OT_SA) /* Maximize bonus space for SA */ + nblkptr = 1; + else + nblkptr = 1 + ((DN_MAX_BONUSLEN - bonuslen) >> SPA_BLKPTRSHIFT); + if (dn->dn_bonustype != bonustype) + dn->dn_next_bonustype[tx->tx_txg&TXG_MASK] = bonustype; if (dn->dn_nblkptr != nblkptr) dn->dn_next_nblkptr[tx->tx_txg&TXG_MASK] = nblkptr; + if (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) { + dbuf_rm_spill(dn, tx); + dnode_rm_spill(dn, tx); + } rw_exit(&dn->dn_struct_rwlock); /* change type */ @@ -488,7 +537,7 @@ dnode_special_close(dnode_t *dn) } dnode_t * -dnode_special_open(objset_impl_t *os, dnode_phys_t *dnp, uint64_t object) +dnode_special_open(objset_t *os, dnode_phys_t *dnp, uint64_t object) { dnode_t *dn = dnode_create(os, dnp, NULL, object); DNODE_VERIFY(dn); @@ -535,7 +584,7 @@ dnode_buf_pageout(dmu_buf_t *db, void *arg) * succeeds even for free dnodes. */ int -dnode_hold_impl(objset_impl_t *os, uint64_t object, int flag, +dnode_hold_impl(objset_t *os, uint64_t object, int flag, void *tag, dnode_t **dnp) { int epb, idx, err; @@ -548,9 +597,14 @@ dnode_hold_impl(objset_impl_t *os, uint64_t object, int flag, /* * If you are holding the spa config lock as writer, you shouldn't - * be asking the DMU to do *anything*. + * be asking the DMU to do *anything* unless it's the root pool + * which may require us to read from the root filesystem while + * holding some (not all) of the locks as writer. */ - ASSERT(spa_config_held(os->os_spa, SCL_ALL, RW_WRITER) == 0); + ASSERT(spa_config_held(os->os_spa, SCL_ALL, RW_WRITER) == 0 || + (spa_is_root(os->os_spa) && + spa_config_held(os->os_spa, SCL_STATE, RW_WRITER) && + !spa_config_held(os->os_spa, SCL_ZIO, RW_WRITER))); if (object == DMU_USERUSED_OBJECT || object == DMU_GROUPUSED_OBJECT) { dn = (object == DMU_USERUSED_OBJECT) ? @@ -627,7 +681,7 @@ dnode_hold_impl(objset_impl_t *os, uint64_t object, int flag, if (dn->dn_free_txg || ((flag & DNODE_MUST_BE_ALLOCATED) && type == DMU_OT_NONE) || ((flag & DNODE_MUST_BE_FREE) && - (type != DMU_OT_NONE || dn->dn_oldphys))) { + (type != DMU_OT_NONE || !refcount_is_zero(&dn->dn_holds)))) { mutex_exit(&dn->dn_mtx); dbuf_rele(db, FTAG); return (type == DMU_OT_NONE ? ENOENT : EEXIST); @@ -650,7 +704,7 @@ dnode_hold_impl(objset_impl_t *os, uint64_t object, int flag, * Return held dnode if the object is allocated, NULL if not. */ int -dnode_hold(objset_impl_t *os, uint64_t object, void *tag, dnode_t **dnp) +dnode_hold(objset_t *os, uint64_t object, void *tag, dnode_t **dnp) { return (dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED, tag, dnp)); } @@ -689,7 +743,7 @@ dnode_rele(dnode_t *dn, void *tag) void dnode_setdirty(dnode_t *dn, dmu_tx_t *tx) { - objset_impl_t *os = dn->dn_objset; + objset_t *os = dn->dn_objset; uint64_t txg = tx->tx_txg; if (DMU_OBJECT_IS_SPECIAL(dn->dn_object)) { @@ -706,6 +760,11 @@ dnode_setdirty(dnode_t *dn, dmu_tx_t *tx) mutex_exit(&dn->dn_mtx); #endif + /* + * Determine old uid/gid when necessary + */ + dmu_objset_userquota_get_ids(dn, B_TRUE, tx); + mutex_enter(&os->os_lock); /* @@ -720,6 +779,7 @@ dnode_setdirty(dnode_t *dn, dmu_tx_t *tx) ASSERT(dn->dn_datablksz != 0); ASSERT3U(dn->dn_next_bonuslen[txg&TXG_MASK], ==, 0); ASSERT3U(dn->dn_next_blksz[txg&TXG_MASK], ==, 0); + ASSERT3U(dn->dn_next_bonustype[txg&TXG_MASK], ==, 0); dprintf_ds(os->os_dsl_dataset, "obj=%llu txg=%llu\n", dn->dn_object, txg); @@ -814,7 +874,8 @@ dnode_set_blksz(dnode_t *dn, uint64_t size, int ibs, dmu_tx_t *tx) for (db = list_head(&dn->dn_dbufs); db; db = db_next) { db_next = list_next(&dn->dn_dbufs, db); - if (db->db_blkid != 0 && db->db_blkid != DB_BONUS_BLKID) { + if (db->db_blkid != 0 && db->db_blkid != DMU_BONUS_BLKID && + db->db_blkid != DMU_SPILL_BLKID) { mutex_exit(&dn->dn_dbufs_mtx); goto fail; } @@ -858,7 +919,7 @@ dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx, boolean_t have_read) int epbs, new_nlevels; uint64_t sz; - ASSERT(blkid != DB_BONUS_BLKID); + ASSERT(blkid != DMU_BONUS_BLKID); ASSERT(have_read ? RW_READ_HELD(&dn->dn_struct_rwlock) : @@ -905,6 +966,7 @@ dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx, boolean_t have_read) /* dirty the left indirects */ db = dbuf_hold_level(dn, old_nlevels, 0, FTAG); + ASSERT(db != NULL); new = dbuf_dirty(db, tx); dbuf_rele(db, FTAG); @@ -915,7 +977,8 @@ dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx, boolean_t have_read) for (dr = list_head(list); dr; dr = dr_next) { dr_next = list_next(&dn->dn_dirty_records[txgoff], dr); if (dr->dr_dbuf->db_level != new_nlevels-1 && - dr->dr_dbuf->db_blkid != DB_BONUS_BLKID) { + dr->dr_dbuf->db_blkid != DMU_BONUS_BLKID && + dr->dr_dbuf->db_blkid != DMU_SPILL_BLKID) { ASSERT(dr->dr_dbuf->db_level == old_nlevels-1); list_remove(&dn->dn_dirty_records[txgoff], dr); list_insert_tail(&new->dt.di.dr_children, dr); @@ -1170,6 +1233,20 @@ out: rw_exit(&dn->dn_struct_rwlock); } +static boolean_t +dnode_spill_freed(dnode_t *dn) +{ + int i; + + mutex_enter(&dn->dn_mtx); + for (i = 0; i < TXG_SIZE; i++) { + if (dn->dn_rm_spillblk[i] == DN_KILL_SPILLBLK) + break; + } + mutex_exit(&dn->dn_mtx); + return (i < TXG_SIZE); +} + /* return TRUE if this blkid was freed in a recent txg, or FALSE if it wasn't */ uint64_t dnode_block_freed(dnode_t *dn, uint64_t blkid) @@ -1178,7 +1255,7 @@ dnode_block_freed(dnode_t *dn, uint64_t blkid) void *dp = spa_get_dsl(dn->dn_objset->os_spa); int i; - if (blkid == DB_BONUS_BLKID) + if (blkid == DMU_BONUS_BLKID) return (FALSE); /* @@ -1191,6 +1268,9 @@ dnode_block_freed(dnode_t *dn, uint64_t blkid) if (dn->dn_free_txg) return (TRUE); + if (blkid == DMU_SPILL_BLKID) + return (dnode_spill_freed(dn)); + range_tofind.fr_blkid = blkid; mutex_enter(&dn->dn_mtx); for (i = 0; i < TXG_SIZE; i++) { @@ -1248,7 +1328,7 @@ dnode_diduse_space(dnode_t *dn, int64_t delta) void dnode_willuse_space(dnode_t *dn, int64_t space, dmu_tx_t *tx) { - objset_impl_t *os = dn->dn_objset; + objset_t *os = dn->dn_objset; dsl_dataset_t *ds = os->os_dsl_dataset; if (space > 0) diff --git a/module/zfs/dnode_sync.c b/module/zfs/dnode_sync.c index 184fe292b..f9ec9f602 100644 --- a/module/zfs/dnode_sync.c +++ b/module/zfs/dnode_sync.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -120,7 +119,7 @@ free_blocks(dnode_t *dn, blkptr_t *bp, int num, dmu_tx_t *tx) if (BP_IS_HOLE(bp)) continue; - bytesfreed += dsl_dataset_block_kill(ds, bp, dn->dn_zio, tx); + bytesfreed += dsl_dataset_block_kill(ds, bp, tx, B_FALSE); ASSERT3U(bytesfreed, <=, DN_USED_BYTES(dn->dn_phys)); bzero(bp, sizeof (blkptr_t)); blocks_freed += 1; @@ -228,7 +227,7 @@ free_children(dmu_buf_impl_t *db, uint64_t blkid, uint64_t nblks, int trunc, if (db->db_state != DB_CACHED) (void) dbuf_read(db, NULL, DB_RF_MUST_SUCCEED); - arc_release(db->db_buf, db); + dbuf_release_bp(db); bp = (blkptr_t *)db->db.db_data; epbs = db->db_dnode->dn_phys->dn_indblkshift - SPA_BLKPTRSHIFT; @@ -424,6 +423,9 @@ dnode_undirty_dbufs(list_t *list) dmu_buf_impl_t *db = dr->dr_dbuf; uint64_t txg = dr->dr_txg; + if (db->db_level != 0) + dnode_undirty_dbufs(&dr->dt.di.dr_children); + mutex_enter(&db->db_mtx); /* XXX - use dbuf_undirty()? */ list_remove(list, dr); @@ -431,16 +433,12 @@ dnode_undirty_dbufs(list_t *list) db->db_last_dirty = NULL; db->db_dirtycnt -= 1; if (db->db_level == 0) { - ASSERT(db->db_blkid == DB_BONUS_BLKID || + ASSERT(db->db_blkid == DMU_BONUS_BLKID || dr->dt.dl.dr_data == db->db_buf); dbuf_unoverride(dr); - mutex_exit(&db->db_mtx); - } else { - mutex_exit(&db->db_mtx); - dnode_undirty_dbufs(&dr->dt.di.dr_children); } kmem_free(dr, sizeof (dbuf_dirty_record_t)); - dbuf_rele(db, (void *)(uintptr_t)txg); + dbuf_rele_and_unlock(db, (void *)(uintptr_t)txg); } } @@ -491,6 +489,7 @@ dnode_sync_free(dnode_t *dn, dmu_tx_t *tx) dn->dn_maxblkid = 0; dn->dn_allocated_txg = 0; dn->dn_free_txg = 0; + dn->dn_have_spill = B_FALSE; mutex_exit(&dn->dn_mtx); ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT); @@ -513,6 +512,7 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx) int txgoff = tx->tx_txg & TXG_MASK; list_t *list = &dn->dn_dirty_records[txgoff]; static const dnode_phys_t zerodn = { 0 }; + boolean_t kill_spill = B_FALSE; ASSERT(dmu_tx_is_syncing(tx)); ASSERT(dnp->dn_type != DMU_OT_NONE || dn->dn_allocated_txg); @@ -524,10 +524,12 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx) if (dmu_objset_userused_enabled(dn->dn_objset) && !DMU_OBJECT_IS_SPECIAL(dn->dn_object)) { - ASSERT(dn->dn_oldphys == NULL); - dn->dn_oldphys = zio_buf_alloc(sizeof (dnode_phys_t)); - *dn->dn_oldphys = *dn->dn_phys; /* struct assignment */ + mutex_enter(&dn->dn_mtx); + dn->dn_oldused = DN_USED_BYTES(dn->dn_phys); + dn->dn_oldflags = dn->dn_phys->dn_flags; dn->dn_phys->dn_flags |= DNODE_FLAG_USERUSED_ACCOUNTED; + mutex_exit(&dn->dn_mtx); + dmu_objset_userquota_get_ids(dn, B_FALSE, tx); } else { /* Once we account for it, we should always account for it. */ ASSERT(!(dn->dn_phys->dn_flags & @@ -558,6 +560,7 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx) SPA_MINBLOCKSIZE) == 0); ASSERT(BP_IS_HOLE(&dnp->dn_blkptr[0]) || dn->dn_maxblkid == 0 || list_head(list) != NULL || + avl_last(&dn->dn_ranges[txgoff]) || dn->dn_next_blksz[txgoff] >> SPA_MINBLOCKSHIFT == dnp->dn_datablkszsec); dnp->dn_datablkszsec = @@ -574,6 +577,24 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx) dn->dn_next_bonuslen[txgoff] = 0; } + if (dn->dn_next_bonustype[txgoff]) { + ASSERT(dn->dn_next_bonustype[txgoff] < DMU_OT_NUMTYPES); + dnp->dn_bonustype = dn->dn_next_bonustype[txgoff]; + dn->dn_next_bonustype[txgoff] = 0; + } + + /* + * We will either remove a spill block when a file is being removed + * or we have been asked to remove it. + */ + if (dn->dn_rm_spillblk[txgoff] || + ((dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) && + dn->dn_free_txg > 0 && dn->dn_free_txg <= tx->tx_txg)) { + if ((dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR)) + kill_spill = B_TRUE; + dn->dn_rm_spillblk[txgoff] = 0; + } + if (dn->dn_next_indblkshift[txgoff]) { ASSERT(dnp->dn_nlevels == 1); dnp->dn_indblkshift = dn->dn_next_indblkshift[txgoff]; @@ -590,6 +611,13 @@ dnode_sync(dnode_t *dn, dmu_tx_t *tx) mutex_exit(&dn->dn_mtx); + if (kill_spill) { + (void) free_blocks(dn, &dn->dn_phys->dn_spill, 1, tx); + mutex_enter(&dn->dn_mtx); + dnp->dn_flags &= ~DNODE_FLAG_SPILL_BLKPTR; + mutex_exit(&dn->dn_mtx); + } + /* process all the "freed" ranges in the file */ while (rp = avl_last(&dn->dn_ranges[txgoff])) { dnode_sync_free_range(dn, rp->fr_blkid, rp->fr_nblks, tx); diff --git a/module/zfs/dsl_dataset.c b/module/zfs/dsl_dataset.c index edc36e72b..ddd83576c 100644 --- a/module/zfs/dsl_dataset.c +++ b/module/zfs/dsl_dataset.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/dmu_objset.h> @@ -38,17 +37,28 @@ #include <sys/zfs_ioctl.h> #include <sys/spa.h> #include <sys/zfs_znode.h> -#include <sys/sunddi.h> #include <sys/zvol.h> +#include <sys/dsl_scan.h> +#include <sys/dsl_deadlist.h> + +/* + * Enable/disable prefetching of dedup-ed blocks which are going to be freed. + */ +int zfs_dedup_prefetch = 1; static char *dsl_reaper = "the grim reaper"; static dsl_checkfunc_t dsl_dataset_destroy_begin_check; static dsl_syncfunc_t dsl_dataset_destroy_begin_sync; -static dsl_checkfunc_t dsl_dataset_rollback_check; -static dsl_syncfunc_t dsl_dataset_rollback_sync; static dsl_syncfunc_t dsl_dataset_set_reservation_sync; +#define SWITCH64(x, y) \ + { \ + uint64_t __tmp = (x); \ + (x) = (y); \ + (y) = __tmp; \ + } + #define DS_REF_MAX (1ULL << 62) #define DSL_DEADLIST_BLOCKSIZE SPA_MAXBLOCKSIZE @@ -77,14 +87,14 @@ parent_delta(dsl_dataset_t *ds, int64_t delta) } void -dsl_dataset_block_born(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) +dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx) { - int used = bp_get_dasize(tx->tx_pool->dp_spa, bp); + int used = bp_get_dsize_sync(tx->tx_pool->dp_spa, bp); int compressed = BP_GET_PSIZE(bp); int uncompressed = BP_GET_UCSIZE(bp); int64_t delta; - dprintf_bp(bp, "born, ds=%p\n", ds); + dprintf_bp(bp, "ds=%p", ds); ASSERT(dmu_tx_is_syncing(tx)); /* It could have been compressed away to nothing */ @@ -104,6 +114,7 @@ dsl_dataset_block_born(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) return; } dmu_buf_will_dirty(ds->ds_dbuf, tx); + mutex_enter(&ds->ds_dir->dd_lock); mutex_enter(&ds->ds_lock); delta = parent_delta(ds, used); @@ -120,29 +131,26 @@ dsl_dataset_block_born(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) } int -dsl_dataset_block_kill(dsl_dataset_t *ds, blkptr_t *bp, zio_t *pio, - dmu_tx_t *tx) +dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx, + boolean_t async) { - int used = bp_get_dasize(tx->tx_pool->dp_spa, bp); - int compressed = BP_GET_PSIZE(bp); - int uncompressed = BP_GET_UCSIZE(bp); - - ASSERT(pio != NULL); - ASSERT(dmu_tx_is_syncing(tx)); - /* No block pointer => nothing to free */ if (BP_IS_HOLE(bp)) return (0); + ASSERT(dmu_tx_is_syncing(tx)); + ASSERT(bp->blk_birth <= tx->tx_txg); + + int used = bp_get_dsize_sync(tx->tx_pool->dp_spa, bp); + int compressed = BP_GET_PSIZE(bp); + int uncompressed = BP_GET_UCSIZE(bp); + ASSERT(used > 0); if (ds == NULL) { - int err; /* * Account for the meta-objset space in its placeholder * dataset. */ - err = dsl_free(pio, tx->tx_pool, - tx->tx_txg, bp, NULL, NULL, ARC_NOWAIT); - ASSERT(err == 0); + dsl_free(tx->tx_pool, tx->tx_txg, bp); dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD, -used, -compressed, -uncompressed, tx); @@ -155,13 +163,10 @@ dsl_dataset_block_kill(dsl_dataset_t *ds, blkptr_t *bp, zio_t *pio, dmu_buf_will_dirty(ds->ds_dbuf, tx); if (bp->blk_birth > ds->ds_phys->ds_prev_snap_txg) { - int err; int64_t delta; - dprintf_bp(bp, "freeing: %s", ""); - err = dsl_free(pio, tx->tx_pool, - tx->tx_txg, bp, NULL, NULL, ARC_NOWAIT); - ASSERT(err == 0); + dprintf_bp(bp, "freeing ds=%llu", ds->ds_object); + dsl_free(tx->tx_pool, tx->tx_txg, bp); mutex_enter(&ds->ds_dir->dd_lock); mutex_enter(&ds->ds_lock); @@ -177,7 +182,18 @@ dsl_dataset_block_kill(dsl_dataset_t *ds, blkptr_t *bp, zio_t *pio, mutex_exit(&ds->ds_dir->dd_lock); } else { dprintf_bp(bp, "putting on dead list: %s", ""); - VERIFY(0 == bplist_enqueue(&ds->ds_deadlist, bp, tx)); + if (async) { + /* + * We are here as part of zio's write done callback, + * which means we're a zio interrupt thread. We can't + * call dsl_deadlist_insert() now because it may block + * waiting for I/O. Instead, put bp on the deferred + * queue and let dsl_pool_sync() finish the job. + */ + bplist_append(&ds->ds_pending_deadlist, bp); + } else { + dsl_deadlist_insert(&ds->ds_deadlist, bp, tx); + } ASSERT3U(ds->ds_prev->ds_object, ==, ds->ds_phys->ds_prev_snap_obj); ASSERT(ds->ds_prev->ds_phys->ds_num_children > 0); @@ -190,7 +206,7 @@ dsl_dataset_block_kill(dsl_dataset_t *ds, blkptr_t *bp, zio_t *pio, ds->ds_prev->ds_phys->ds_unique_bytes += used; mutex_exit(&ds->ds_prev->ds_lock); } - if (bp->blk_birth > ds->ds_origin_txg) { + if (bp->blk_birth > ds->ds_dir->dd_origin_txg) { dsl_dir_transfer_space(ds->ds_dir, used, DD_USED_HEAD, DD_USED_SNAP, tx); } @@ -231,9 +247,16 @@ dsl_dataset_prev_snap_txg(dsl_dataset_t *ds) } boolean_t -dsl_dataset_block_freeable(dsl_dataset_t *ds, uint64_t blk_birth) +dsl_dataset_block_freeable(dsl_dataset_t *ds, const blkptr_t *bp, + uint64_t blk_birth) { - return (blk_birth > dsl_dataset_prev_snap_txg(ds)); + if (blk_birth <= dsl_dataset_prev_snap_txg(ds)) + return (B_FALSE); + + if (zfs_dedup_prefetch && bp && BP_GET_DEDUP(bp)) + ddt_prefetch(dsl_dataset_get_spa(ds), bp); + + return (B_TRUE); } /* ARGSUSED */ @@ -244,19 +267,23 @@ dsl_dataset_evict(dmu_buf_t *db, void *dsv) ASSERT(ds->ds_owner == NULL || DSL_DATASET_IS_DESTROYED(ds)); - dprintf_ds(ds, "evicting %s\n", ""); - unique_remove(ds->ds_fsid_guid); - if (ds->ds_user_ptr != NULL) - ds->ds_user_evict_func(ds, ds->ds_user_ptr); + if (ds->ds_objset != NULL) + dmu_objset_evict(ds->ds_objset); if (ds->ds_prev) { dsl_dataset_drop_ref(ds->ds_prev, ds); ds->ds_prev = NULL; } - bplist_close(&ds->ds_deadlist); + bplist_destroy(&ds->ds_pending_deadlist); + if (db != NULL) { + dsl_deadlist_close(&ds->ds_deadlist); + } else { + ASSERT(ds->ds_deadlist.dl_dbuf == NULL); + ASSERT(!ds->ds_deadlist.dl_oldfmt); + } if (ds->ds_dir) dsl_dir_close(ds->ds_dir, ds); @@ -265,7 +292,6 @@ dsl_dataset_evict(dmu_buf_t *db, void *dsv) mutex_destroy(&ds->ds_lock); mutex_destroy(&ds->ds_recvlock); mutex_destroy(&ds->ds_opening_lock); - mutex_destroy(&ds->ds_deadlist.bpl_lock); rw_destroy(&ds->ds_rwlock); cv_destroy(&ds->ds_exclusive_cv); @@ -325,6 +351,8 @@ dsl_dataset_snap_remove(dsl_dataset_t *ds, char *name, dmu_tx_t *tx) matchtype_t mt; int err; + dsl_dir_snap_cmtime_update(ds->ds_dir); + if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET) mt = MT_FIRST; else @@ -363,28 +391,25 @@ dsl_dataset_get_ref(dsl_pool_t *dp, uint64_t dsobj, void *tag, mutex_init(&ds->ds_lock, NULL, MUTEX_DEFAULT, NULL); mutex_init(&ds->ds_recvlock, NULL, MUTEX_DEFAULT, NULL); mutex_init(&ds->ds_opening_lock, NULL, MUTEX_DEFAULT, NULL); - mutex_init(&ds->ds_deadlist.bpl_lock, NULL, MUTEX_DEFAULT, - NULL); rw_init(&ds->ds_rwlock, 0, 0, 0); cv_init(&ds->ds_exclusive_cv, NULL, CV_DEFAULT, NULL); - err = bplist_open(&ds->ds_deadlist, + bplist_create(&ds->ds_pending_deadlist); + dsl_deadlist_open(&ds->ds_deadlist, mos, ds->ds_phys->ds_deadlist_obj); + if (err == 0) { err = dsl_dir_open_obj(dp, ds->ds_phys->ds_dir_obj, NULL, ds, &ds->ds_dir); } if (err) { - /* - * we don't really need to close the blist if we - * just opened it. - */ mutex_destroy(&ds->ds_lock); mutex_destroy(&ds->ds_recvlock); mutex_destroy(&ds->ds_opening_lock); - mutex_destroy(&ds->ds_deadlist.bpl_lock); rw_destroy(&ds->ds_rwlock); cv_destroy(&ds->ds_exclusive_cv); + bplist_destroy(&ds->ds_pending_deadlist); + dsl_deadlist_close(&ds->ds_deadlist); kmem_free(ds, sizeof (dsl_dataset_t)); dmu_buf_rele(dbuf, tag); return (err); @@ -397,19 +422,6 @@ dsl_dataset_get_ref(dsl_pool_t *dp, uint64_t dsobj, void *tag, ds->ds_phys->ds_prev_snap_obj, ds, &ds->ds_prev); } - - if (err == 0 && dsl_dir_is_clone(ds->ds_dir)) { - dsl_dataset_t *origin; - - err = dsl_dataset_hold_obj(dp, - ds->ds_dir->dd_phys->dd_origin_obj, - FTAG, &origin); - if (err == 0) { - ds->ds_origin_txg = - origin->ds_phys->ds_creation_txg; - dsl_dataset_rele(origin, FTAG); - } - } } else { if (zfs_flags & ZFS_DEBUG_SNAPNAMES) err = dsl_dataset_get_snapname(ds); @@ -454,14 +466,14 @@ dsl_dataset_get_ref(dsl_pool_t *dp, uint64_t dsobj, void *tag, dsl_dataset_evict); } if (err || winner) { - bplist_close(&ds->ds_deadlist); + bplist_destroy(&ds->ds_pending_deadlist); + dsl_deadlist_close(&ds->ds_deadlist); if (ds->ds_prev) dsl_dataset_drop_ref(ds->ds_prev, ds); dsl_dir_close(ds->ds_dir, ds); mutex_destroy(&ds->ds_lock); mutex_destroy(&ds->ds_recvlock); mutex_destroy(&ds->ds_opening_lock); - mutex_destroy(&ds->ds_deadlist.bpl_lock); rw_destroy(&ds->ds_rwlock); cv_destroy(&ds->ds_exclusive_cv); kmem_free(ds, sizeof (dsl_dataset_t)); @@ -531,7 +543,15 @@ dsl_dataset_hold_ref(dsl_dataset_t *ds, void *tag) rw_enter(&dp->dp_config_rwlock, RW_READER); return (ENOENT); } + /* + * The dp_config_rwlock lives above the ds_lock. And + * we need to check DSL_DATASET_IS_DESTROYED() while + * holding the ds_lock, so we have to drop and reacquire + * the ds_lock here. + */ + mutex_exit(&ds->ds_lock); rw_enter(&dp->dp_config_rwlock, RW_READER); + mutex_enter(&ds->ds_lock); } mutex_exit(&ds->ds_lock); return (0); @@ -549,17 +569,14 @@ dsl_dataset_hold_obj(dsl_pool_t *dp, uint64_t dsobj, void *tag, } int -dsl_dataset_own_obj(dsl_pool_t *dp, uint64_t dsobj, int flags, void *owner, - dsl_dataset_t **dsp) +dsl_dataset_own_obj(dsl_pool_t *dp, uint64_t dsobj, boolean_t inconsistentok, + void *tag, dsl_dataset_t **dsp) { - int err = dsl_dataset_hold_obj(dp, dsobj, owner, dsp); - - ASSERT(DS_MODE_TYPE(flags) != DS_MODE_USER); - + int err = dsl_dataset_hold_obj(dp, dsobj, tag, dsp); if (err) return (err); - if (!dsl_dataset_tryown(*dsp, DS_MODE_IS_INCONSISTENT(flags), owner)) { - dsl_dataset_rele(*dsp, owner); + if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) { + dsl_dataset_rele(*dsp, tag); *dsp = NULL; return (EBUSY); } @@ -626,18 +643,14 @@ out: } int -dsl_dataset_own(const char *name, int flags, void *owner, dsl_dataset_t **dsp) +dsl_dataset_own(const char *name, boolean_t inconsistentok, + void *tag, dsl_dataset_t **dsp) { - int err = dsl_dataset_hold(name, owner, dsp); + int err = dsl_dataset_hold(name, tag, dsp); if (err) return (err); - if ((*dsp)->ds_phys->ds_num_children > 0 && - !DS_MODE_IS_READONLY(flags)) { - dsl_dataset_rele(*dsp, owner); - return (EROFS); - } - if (!dsl_dataset_tryown(*dsp, DS_MODE_IS_INCONSISTENT(flags), owner)) { - dsl_dataset_rele(*dsp, owner); + if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) { + dsl_dataset_rele(*dsp, tag); return (EBUSY); } return (0); @@ -709,9 +722,9 @@ dsl_dataset_rele(dsl_dataset_t *ds, void *tag) } void -dsl_dataset_disown(dsl_dataset_t *ds, void *owner) +dsl_dataset_disown(dsl_dataset_t *ds, void *tag) { - ASSERT((ds->ds_owner == owner && ds->ds_dbuf) || + ASSERT((ds->ds_owner == tag && ds->ds_dbuf) || (DSL_DATASET_IS_DESTROYED(ds) && ds->ds_dbuf == NULL)); mutex_enter(&ds->ds_lock); @@ -722,20 +735,20 @@ dsl_dataset_disown(dsl_dataset_t *ds, void *owner) } mutex_exit(&ds->ds_lock); if (ds->ds_dbuf) - dsl_dataset_drop_ref(ds, owner); + dsl_dataset_drop_ref(ds, tag); else - dsl_dataset_evict(ds->ds_dbuf, ds); + dsl_dataset_evict(NULL, ds); } boolean_t -dsl_dataset_tryown(dsl_dataset_t *ds, boolean_t inconsistentok, void *owner) +dsl_dataset_tryown(dsl_dataset_t *ds, boolean_t inconsistentok, void *tag) { boolean_t gotit = FALSE; mutex_enter(&ds->ds_lock); if (ds->ds_owner == NULL && (!DS_IS_INCONSISTENT(ds) || inconsistentok)) { - ds->ds_owner = owner; + ds->ds_owner = tag; if (!dsl_pool_sync_context(ds->ds_dir->dd_pool)) rw_exit(&ds->ds_rwlock); gotit = TRUE; @@ -786,10 +799,12 @@ dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, DMU_OT_NONE, 0, tx); dsphys->ds_creation_time = gethrestime_sec(); dsphys->ds_creation_txg = tx->tx_txg == TXG_INITIAL ? 1 : tx->tx_txg; - dsphys->ds_deadlist_obj = - bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); - if (origin) { + if (origin == NULL) { + dsphys->ds_deadlist_obj = dsl_deadlist_alloc(mos, tx); + } else { + dsl_dataset_t *ohds; + dsphys->ds_prev_snap_obj = origin->ds_object; dsphys->ds_prev_snap_txg = origin->ds_phys->ds_creation_txg; @@ -805,6 +820,12 @@ dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, dmu_buf_will_dirty(origin->ds_dbuf, tx); origin->ds_phys->ds_num_children++; + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, + origin->ds_dir->dd_phys->dd_head_dataset_obj, FTAG, &ohds)); + dsphys->ds_deadlist_obj = dsl_deadlist_clone(&ohds->ds_deadlist, + dsphys->ds_prev_snap_txg, dsphys->ds_prev_snap_obj, tx); + dsl_dataset_rele(ohds, FTAG); + if (spa_version(dp->dp_spa) >= SPA_VERSION_NEXT_CLONES) { if (origin->ds_phys->ds_next_clones_obj == 0) { origin->ds_phys->ds_next_clones_obj = @@ -818,6 +839,16 @@ dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, dmu_buf_will_dirty(dd->dd_dbuf, tx); dd->dd_phys->dd_origin_obj = origin->ds_object; + if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { + if (origin->ds_dir->dd_phys->dd_clones == 0) { + dmu_buf_will_dirty(origin->ds_dir->dd_dbuf, tx); + origin->ds_dir->dd_phys->dd_clones = + zap_create(mos, + DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx); + } + VERIFY3U(0, ==, zap_add_int(mos, + origin->ds_dir->dd_phys->dd_clones, dsobj, tx)); + } } if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE) @@ -861,29 +892,20 @@ struct destroyarg { }; static int -dsl_snapshot_destroy_one(char *name, void *arg) +dsl_snapshot_destroy_one(const char *name, void *arg) { struct destroyarg *da = arg; dsl_dataset_t *ds; int err; char *dsname; - size_t buflen; - - /* alloc a buffer to hold name@snapname, plus the terminating NULL */ - buflen = strlen(name) + strlen(da->snapname) + 2; - dsname = kmem_alloc(buflen, KM_SLEEP); - (void) snprintf(dsname, buflen, "%s@%s", name, da->snapname); - err = dsl_dataset_own(dsname, DS_MODE_READONLY | DS_MODE_INCONSISTENT, - da->dstg, &ds); - kmem_free(dsname, buflen); + + dsname = kmem_asprintf("%s@%s", name, da->snapname); + err = dsl_dataset_own(dsname, B_TRUE, da->dstg, &ds); + strfree(dsname); if (err == 0) { struct dsl_ds_destroyarg *dsda; dsl_dataset_make_exclusive(ds, da->dstg); - if (ds->ds_user_ptr) { - ds->ds_user_evict_func(ds, ds->ds_user_ptr); - ds->ds_user_ptr = NULL; - } dsda = kmem_zalloc(sizeof (struct dsl_ds_destroyarg), KM_SLEEP); dsda->ds = ds; dsda->defer = da->defer; @@ -959,25 +981,6 @@ dsl_dataset_might_destroy_origin(dsl_dataset_t *ds) return (might_destroy); } -#ifdef _KERNEL -static int -dsl_dataset_zvol_cleanup(dsl_dataset_t *ds, const char *name) -{ - int error; - objset_t *os; - - error = dmu_objset_open_ds(ds, DMU_OST_ANY, &os); - if (error) - return (error); - - if (dmu_objset_type(os) == DMU_OST_ZVOL) - error = zvol_remove_minor(name); - dmu_objset_close(os); - - return (error); -} -#endif - /* * If we're removing a clone, and these three conditions are true: * 1) the clone's origin has no other children @@ -1005,15 +1008,8 @@ dsl_dataset_origin_rm_prep(struct dsl_ds_destroyarg *dsda, void *tag) kmem_free(name, namelen); return (error); } - error = dsl_dataset_zvol_cleanup(origin, name); - if (error) { - kmem_free(name, namelen); - return (error); - } #endif - error = dsl_dataset_own(name, - DS_MODE_READONLY | DS_MODE_INCONSISTENT, - tag, &origin); + error = dsl_dataset_own(name, B_TRUE, tag, &origin); kmem_free(name, namelen); if (error) return (error); @@ -1036,7 +1032,8 @@ dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) objset_t *os; dsl_dir_t *dd; uint64_t obj; - struct dsl_ds_destroyarg dsda = {0}; + struct dsl_ds_destroyarg dsda = { 0 }; + dsl_dataset_t dummy_ds = { 0 }; dsda.ds = ds; @@ -1044,20 +1041,20 @@ dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) /* Destroying a snapshot is simpler */ dsl_dataset_make_exclusive(ds, tag); - if (ds->ds_user_ptr) { - ds->ds_user_evict_func(ds, ds->ds_user_ptr); - ds->ds_user_ptr = NULL; - } - /* NOTE: defer is always B_FALSE for non-snapshots */ dsda.defer = defer; err = dsl_sync_task_do(ds->ds_dir->dd_pool, dsl_dataset_destroy_check, dsl_dataset_destroy_sync, &dsda, tag, 0); ASSERT3P(dsda.rm_origin, ==, NULL); goto out; + } else if (defer) { + err = EINVAL; + goto out; } dd = ds->ds_dir; + dummy_ds.ds_dir = dd; + dummy_ds.ds_object = ds->ds_object; /* * Check for errors and mark this ds as inconsistent, in @@ -1068,7 +1065,7 @@ dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) if (err) goto out; - err = dmu_objset_open_ds(ds, DMU_OST_ANY, &os); + err = dmu_objset_from_ds(ds, &os); if (err) goto out; @@ -1097,7 +1094,7 @@ dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) * context, the user space accounting should be zero. */ if (ds->ds_phys->ds_bp.blk_fill == 0 && - dmu_objset_userused_enabled(os->os)) { + dmu_objset_userused_enabled(os)) { uint64_t count; ASSERT(zap_count(os, DMU_USERUSED_OBJECT, &count) != 0 || @@ -1106,7 +1103,6 @@ dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) count == 0); } - dmu_objset_close(os); if (err != ESRCH) goto out; @@ -1117,24 +1113,10 @@ dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) if (err) goto out; - if (ds->ds_user_ptr) { - /* - * We need to sync out all in-flight IO before we try - * to evict (the dataset evict func is trying to clear - * the cached entries for this dataset in the ARC). - */ - txg_wait_synced(dd->dd_pool, 0); - } - /* * Blow away the dsl_dir + head dataset. */ dsl_dataset_make_exclusive(ds, tag); - if (ds->ds_user_ptr) { - ds->ds_user_evict_func(ds, ds->ds_user_ptr); - ds->ds_user_ptr = NULL; - } - /* * If we're removing a clone, we might also need to remove its * origin. @@ -1153,7 +1135,7 @@ dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) dsl_sync_task_create(dstg, dsl_dataset_destroy_check, dsl_dataset_destroy_sync, &dsda, tag, 0); dsl_sync_task_create(dstg, dsl_dir_destroy_check, - dsl_dir_destroy_sync, dd, FTAG, 0); + dsl_dir_destroy_sync, &dummy_ds, FTAG, 0); err = dsl_sync_task_group_wait(dstg); dsl_sync_task_group_destroy(dstg); @@ -1181,47 +1163,6 @@ out: return (err); } -int -dsl_dataset_rollback(dsl_dataset_t *ds, dmu_objset_type_t ost) -{ - int err; - - ASSERT(ds->ds_owner); - - dsl_dataset_make_exclusive(ds, ds->ds_owner); - err = dsl_sync_task_do(ds->ds_dir->dd_pool, - dsl_dataset_rollback_check, dsl_dataset_rollback_sync, - ds, &ost, 0); - /* drop exclusive access */ - mutex_enter(&ds->ds_lock); - rw_exit(&ds->ds_rwlock); - cv_broadcast(&ds->ds_exclusive_cv); - mutex_exit(&ds->ds_lock); - return (err); -} - -void * -dsl_dataset_set_user_ptr(dsl_dataset_t *ds, - void *p, dsl_dataset_evict_func_t func) -{ - void *old; - - mutex_enter(&ds->ds_lock); - old = ds->ds_user_ptr; - if (old == NULL) { - ds->ds_user_ptr = p; - ds->ds_user_evict_func = func; - } - mutex_exit(&ds->ds_lock); - return (old); -} - -void * -dsl_dataset_get_user_ptr(dsl_dataset_t *ds) -{ - return (ds->ds_user_ptr); -} - blkptr_t * dsl_dataset_get_blkptr(dsl_dataset_t *ds) { @@ -1255,7 +1196,7 @@ dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx) if (ds == NULL) /* this is the meta-objset */ return; - ASSERT(ds->ds_user_ptr != NULL); + ASSERT(ds->ds_objset != NULL); if (ds->ds_phys->ds_next_snap_obj != 0) panic("dirtying snapshot!"); @@ -1282,62 +1223,51 @@ dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds) uint64_t mrs_used; uint64_t dlused, dlcomp, dluncomp; - ASSERT(ds->ds_object == ds->ds_dir->dd_phys->dd_head_dataset_obj); + ASSERT(!dsl_dataset_is_snapshot(ds)); if (ds->ds_phys->ds_prev_snap_obj != 0) mrs_used = ds->ds_prev->ds_phys->ds_used_bytes; else mrs_used = 0; - VERIFY(0 == bplist_space(&ds->ds_deadlist, &dlused, &dlcomp, - &dluncomp)); + dsl_deadlist_space(&ds->ds_deadlist, &dlused, &dlcomp, &dluncomp); ASSERT3U(dlused, <=, mrs_used); ds->ds_phys->ds_unique_bytes = ds->ds_phys->ds_used_bytes - (mrs_used - dlused); - if (!DS_UNIQUE_IS_ACCURATE(ds) && - spa_version(ds->ds_dir->dd_pool->dp_spa) >= + if (spa_version(ds->ds_dir->dd_pool->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE) ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; } -static uint64_t -dsl_dataset_unique(dsl_dataset_t *ds) -{ - if (!DS_UNIQUE_IS_ACCURATE(ds) && !dsl_dataset_is_snapshot(ds)) - dsl_dataset_recalc_head_uniq(ds); - - return (ds->ds_phys->ds_unique_bytes); -} - struct killarg { dsl_dataset_t *ds; - zio_t *zio; dmu_tx_t *tx; }; /* ARGSUSED */ static int -kill_blkptr(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, - const dnode_phys_t *dnp, void *arg) +kill_blkptr(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, arc_buf_t *pbuf, + const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) { struct killarg *ka = arg; + dmu_tx_t *tx = ka->tx; if (bp == NULL) return (0); - if ((zb->zb_level == -1ULL && zb->zb_blkid != 0) || - (zb->zb_object != 0 && dnp == NULL)) { + if (zb->zb_level == ZB_ZIL_LEVEL) { + ASSERT(zilog != NULL); /* * It's a block in the intent log. It has no * accounting, so just free it. */ - VERIFY3U(0, ==, dsl_free(ka->zio, ka->tx->tx_pool, - ka->tx->tx_txg, bp, NULL, NULL, ARC_NOWAIT)); + dsl_free(ka->tx->tx_pool, ka->tx->tx_txg, bp); } else { + ASSERT(zilog == NULL); ASSERT3U(bp->blk_birth, >, ka->ds->ds_phys->ds_prev_snap_txg); - (void) dsl_dataset_block_kill(ka->ds, bp, ka->zio, ka->tx); + (void) dsl_dataset_block_kill(ka->ds, bp, tx, B_FALSE); } return (0); @@ -1345,145 +1275,6 @@ kill_blkptr(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, /* ARGSUSED */ static int -dsl_dataset_rollback_check(void *arg1, void *arg2, dmu_tx_t *tx) -{ - dsl_dataset_t *ds = arg1; - dmu_objset_type_t *ost = arg2; - - /* - * We can only roll back to emptyness if it is a ZPL objset. - */ - if (*ost != DMU_OST_ZFS && - ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) - return (EINVAL); - - /* - * This must not be a snapshot. - */ - if (ds->ds_phys->ds_next_snap_obj != 0) - return (EINVAL); - - /* - * If we made changes this txg, traverse_dataset won't find - * them. Try again. - */ - if (ds->ds_phys->ds_bp.blk_birth >= tx->tx_txg) - return (EAGAIN); - - return (0); -} - -/* ARGSUSED */ -static void -dsl_dataset_rollback_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) -{ - dsl_dataset_t *ds = arg1; - dmu_objset_type_t *ost = arg2; - objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; - - dmu_buf_will_dirty(ds->ds_dbuf, tx); - - if (ds->ds_user_ptr != NULL) { - /* - * We need to make sure that the objset_impl_t is reopened after - * we do the rollback, otherwise it will have the wrong - * objset_phys_t. Normally this would happen when this - * dataset-open is closed, thus causing the - * dataset to be immediately evicted. But when doing "zfs recv - * -F", we reopen the objset before that, so that there is no - * window where the dataset is closed and inconsistent. - */ - ds->ds_user_evict_func(ds, ds->ds_user_ptr); - ds->ds_user_ptr = NULL; - } - - /* Transfer space that was freed since last snap back to the head. */ - { - uint64_t used; - - VERIFY(0 == bplist_space_birthrange(&ds->ds_deadlist, - ds->ds_origin_txg, UINT64_MAX, &used)); - dsl_dir_transfer_space(ds->ds_dir, used, - DD_USED_SNAP, DD_USED_HEAD, tx); - } - - /* Zero out the deadlist. */ - bplist_close(&ds->ds_deadlist); - bplist_destroy(mos, ds->ds_phys->ds_deadlist_obj, tx); - ds->ds_phys->ds_deadlist_obj = - bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); - VERIFY(0 == bplist_open(&ds->ds_deadlist, mos, - ds->ds_phys->ds_deadlist_obj)); - - { - /* - * Free blkptrs that we gave birth to - this covers - * claimed but not played log blocks too. - */ - zio_t *zio; - struct killarg ka; - - zio = zio_root(tx->tx_pool->dp_spa, NULL, NULL, - ZIO_FLAG_MUSTSUCCEED); - ka.ds = ds; - ka.zio = zio; - ka.tx = tx; - (void) traverse_dataset(ds, ds->ds_phys->ds_prev_snap_txg, - TRAVERSE_POST, kill_blkptr, &ka); - (void) zio_wait(zio); - } - - ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) || ds->ds_phys->ds_unique_bytes == 0); - - if (ds->ds_prev && ds->ds_prev != ds->ds_dir->dd_pool->dp_origin_snap) { - /* Change our contents to that of the prev snapshot */ - - ASSERT3U(ds->ds_prev->ds_object, ==, - ds->ds_phys->ds_prev_snap_obj); - ASSERT3U(ds->ds_phys->ds_used_bytes, <=, - ds->ds_prev->ds_phys->ds_used_bytes); - - ds->ds_phys->ds_bp = ds->ds_prev->ds_phys->ds_bp; - ds->ds_phys->ds_used_bytes = - ds->ds_prev->ds_phys->ds_used_bytes; - ds->ds_phys->ds_compressed_bytes = - ds->ds_prev->ds_phys->ds_compressed_bytes; - ds->ds_phys->ds_uncompressed_bytes = - ds->ds_prev->ds_phys->ds_uncompressed_bytes; - ds->ds_phys->ds_flags = ds->ds_prev->ds_phys->ds_flags; - - if (ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) { - dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); - ds->ds_prev->ds_phys->ds_unique_bytes = 0; - } - } else { - objset_impl_t *osi; - - ASSERT(*ost != DMU_OST_ZVOL); - ASSERT3U(ds->ds_phys->ds_used_bytes, ==, 0); - ASSERT3U(ds->ds_phys->ds_compressed_bytes, ==, 0); - ASSERT3U(ds->ds_phys->ds_uncompressed_bytes, ==, 0); - - bzero(&ds->ds_phys->ds_bp, sizeof (blkptr_t)); - ds->ds_phys->ds_flags = 0; - ds->ds_phys->ds_unique_bytes = 0; - if (spa_version(ds->ds_dir->dd_pool->dp_spa) >= - SPA_VERSION_UNIQUE_ACCURATE) - ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; - - osi = dmu_objset_create_impl(ds->ds_dir->dd_pool->dp_spa, ds, - &ds->ds_phys->ds_bp, *ost, tx); -#ifdef _KERNEL - zfs_create_fs(&osi->os, kcred, NULL, tx); -#endif - } - - spa_history_internal_log(LOG_DS_ROLLBACK, ds->ds_dir->dd_pool->dp_spa, - tx, cr, "dataset = %llu", ds->ds_object); -} - -/* ARGSUSED */ -static int dsl_dataset_destroy_begin_check(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; @@ -1498,7 +1289,7 @@ dsl_dataset_destroy_begin_check(void *arg1, void *arg2, dmu_tx_t *tx) */ if (ds->ds_prev != NULL && ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) - return (EINVAL); + return (EBUSY); /* * This is really a dsl_dir thing, but check it here so that @@ -1516,7 +1307,7 @@ dsl_dataset_destroy_begin_check(void *arg1, void *arg2, dmu_tx_t *tx) /* ARGSUSED */ static void -dsl_dataset_destroy_begin_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_destroy_begin_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; dsl_pool_t *dp = ds->ds_dir->dd_pool; @@ -1525,8 +1316,8 @@ dsl_dataset_destroy_begin_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) dmu_buf_will_dirty(ds->ds_dbuf, tx); ds->ds_phys->ds_flags |= DS_FLAG_INCONSISTENT; - spa_history_internal_log(LOG_DS_DESTROY_BEGIN, dp->dp_spa, tx, - cr, "dataset = %llu", ds->ds_object); + spa_history_log_internal(LOG_DS_DESTROY_BEGIN, dp->dp_spa, tx, + "dataset = %llu", ds->ds_object); } static int @@ -1594,7 +1385,7 @@ dsl_dataset_destroy_check(void *arg1, void *arg2, dmu_tx_t *tx) */ if (ds->ds_prev != NULL && ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) - return (EINVAL); + return (EBUSY); /* * If we made changes this txg, traverse_dsl_dataset won't find @@ -1672,12 +1463,135 @@ dsl_dataset_drain_refs(dsl_dataset_t *ds, void *tag) cv_destroy(&arg.cv); } +static void +remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj, dmu_tx_t *tx) +{ + objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; + uint64_t count; + int err; + + ASSERT(ds->ds_phys->ds_num_children >= 2); + err = zap_remove_int(mos, ds->ds_phys->ds_next_clones_obj, obj, tx); + /* + * The err should not be ENOENT, but a bug in a previous version + * of the code could cause upgrade_clones_cb() to not set + * ds_next_snap_obj when it should, leading to a missing entry. + * If we knew that the pool was created after + * SPA_VERSION_NEXT_CLONES, we could assert that it isn't + * ENOENT. However, at least we can check that we don't have + * too many entries in the next_clones_obj even after failing to + * remove this one. + */ + if (err != ENOENT) { + VERIFY3U(err, ==, 0); + } + ASSERT3U(0, ==, zap_count(mos, ds->ds_phys->ds_next_clones_obj, + &count)); + ASSERT3U(count, <=, ds->ds_phys->ds_num_children - 2); +} + +static void +dsl_dataset_remove_clones_key(dsl_dataset_t *ds, uint64_t mintxg, dmu_tx_t *tx) +{ + objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; + zap_cursor_t zc; + zap_attribute_t za; + + /* + * If it is the old version, dd_clones doesn't exist so we can't + * find the clones, but deadlist_remove_key() is a no-op so it + * doesn't matter. + */ + if (ds->ds_dir->dd_phys->dd_clones == 0) + return; + + for (zap_cursor_init(&zc, mos, ds->ds_dir->dd_phys->dd_clones); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) { + dsl_dataset_t *clone; + + VERIFY3U(0, ==, dsl_dataset_hold_obj(ds->ds_dir->dd_pool, + za.za_first_integer, FTAG, &clone)); + if (clone->ds_dir->dd_origin_txg > mintxg) { + dsl_deadlist_remove_key(&clone->ds_deadlist, + mintxg, tx); + dsl_dataset_remove_clones_key(clone, mintxg, tx); + } + dsl_dataset_rele(clone, FTAG); + } + zap_cursor_fini(&zc); +} + +struct process_old_arg { + dsl_dataset_t *ds; + dsl_dataset_t *ds_prev; + boolean_t after_branch_point; + zio_t *pio; + uint64_t used, comp, uncomp; +}; + +static int +process_old_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + struct process_old_arg *poa = arg; + dsl_pool_t *dp = poa->ds->ds_dir->dd_pool; + + if (bp->blk_birth <= poa->ds->ds_phys->ds_prev_snap_txg) { + dsl_deadlist_insert(&poa->ds->ds_deadlist, bp, tx); + if (poa->ds_prev && !poa->after_branch_point && + bp->blk_birth > + poa->ds_prev->ds_phys->ds_prev_snap_txg) { + poa->ds_prev->ds_phys->ds_unique_bytes += + bp_get_dsize_sync(dp->dp_spa, bp); + } + } else { + poa->used += bp_get_dsize_sync(dp->dp_spa, bp); + poa->comp += BP_GET_PSIZE(bp); + poa->uncomp += BP_GET_UCSIZE(bp); + dsl_free_sync(poa->pio, dp, tx->tx_txg, bp); + } + return (0); +} + +static void +process_old_deadlist(dsl_dataset_t *ds, dsl_dataset_t *ds_prev, + dsl_dataset_t *ds_next, boolean_t after_branch_point, dmu_tx_t *tx) +{ + struct process_old_arg poa = { 0 }; + dsl_pool_t *dp = ds->ds_dir->dd_pool; + objset_t *mos = dp->dp_meta_objset; + + ASSERT(ds->ds_deadlist.dl_oldfmt); + ASSERT(ds_next->ds_deadlist.dl_oldfmt); + + poa.ds = ds; + poa.ds_prev = ds_prev; + poa.after_branch_point = after_branch_point; + poa.pio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); + VERIFY3U(0, ==, bpobj_iterate(&ds_next->ds_deadlist.dl_bpobj, + process_old_cb, &poa, tx)); + VERIFY3U(zio_wait(poa.pio), ==, 0); + ASSERT3U(poa.used, ==, ds->ds_phys->ds_unique_bytes); + + /* change snapused */ + dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP, + -poa.used, -poa.comp, -poa.uncomp, tx); + + /* swap next's deadlist to our deadlist */ + dsl_deadlist_close(&ds->ds_deadlist); + dsl_deadlist_close(&ds_next->ds_deadlist); + SWITCH64(ds_next->ds_phys->ds_deadlist_obj, + ds->ds_phys->ds_deadlist_obj); + dsl_deadlist_open(&ds->ds_deadlist, mos, ds->ds_phys->ds_deadlist_obj); + dsl_deadlist_open(&ds_next->ds_deadlist, mos, + ds_next->ds_phys->ds_deadlist_obj); +} + void -dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_destroy_sync(void *arg1, void *tag, dmu_tx_t *tx) { struct dsl_ds_destroyarg *dsda = arg1; dsl_dataset_t *ds = dsda->ds; - zio_t *zio; int err; int after_branch_point = FALSE; dsl_pool_t *dp = ds->ds_dir->dd_pool; @@ -1706,16 +1620,28 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) cv_broadcast(&ds->ds_exclusive_cv); mutex_exit(&ds->ds_lock); + if (ds->ds_objset) { + dmu_objset_evict(ds->ds_objset); + ds->ds_objset = NULL; + } + /* Remove our reservation */ if (ds->ds_reserved != 0) { - uint64_t val = 0; - dsl_dataset_set_reservation_sync(ds, &val, cr, tx); + dsl_prop_setarg_t psa; + uint64_t value = 0; + + dsl_prop_setarg_init_uint64(&psa, "refreservation", + (ZPROP_SRC_NONE | ZPROP_SRC_LOCAL | ZPROP_SRC_RECEIVED), + &value); + psa.psa_effective_value = 0; /* predict default value */ + + dsl_dataset_set_reservation_sync(ds, &psa, tx); ASSERT3U(ds->ds_reserved, ==, 0); } ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); - dsl_pool_ds_destroyed(ds, tx); + dsl_scan_ds_destroyed(ds, tx); obj = ds->ds_object; @@ -1732,8 +1658,7 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) dmu_buf_will_dirty(ds_prev->ds_dbuf, tx); if (after_branch_point && ds_prev->ds_phys->ds_next_clones_obj != 0) { - VERIFY3U(0, ==, zap_remove_int(mos, - ds_prev->ds_phys->ds_next_clones_obj, obj, tx)); + remove_from_next_clones(ds_prev, obj, tx); if (ds->ds_phys->ds_next_snap_obj != 0) { VERIFY(0 == zap_add_int(mos, ds_prev->ds_phys->ds_next_clones_obj, @@ -1765,20 +1690,16 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) } } - zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); - - if (ds->ds_phys->ds_next_snap_obj != 0) { - blkptr_t bp; + if (dsl_dataset_is_snapshot(ds)) { dsl_dataset_t *ds_next; - uint64_t itor = 0; uint64_t old_unique; - int64_t used = 0, compressed = 0, uncompressed = 0; + uint64_t used = 0, comp = 0, uncomp = 0; VERIFY(0 == dsl_dataset_hold_obj(dp, ds->ds_phys->ds_next_snap_obj, FTAG, &ds_next)); ASSERT3U(ds_next->ds_phys->ds_prev_snap_obj, ==, obj); - old_unique = dsl_dataset_unique(ds_next); + old_unique = ds_next->ds_phys->ds_unique_bytes; dmu_buf_will_dirty(ds_next->ds_dbuf, tx); ds_next->ds_phys->ds_prev_snap_obj = @@ -1788,53 +1709,49 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==, ds_prev ? ds_prev->ds_phys->ds_creation_txg : 0); - /* - * Transfer to our deadlist (which will become next's - * new deadlist) any entries from next's current - * deadlist which were born before prev, and free the - * other entries. - * - * XXX we're doing this long task with the config lock held - */ - while (bplist_iterate(&ds_next->ds_deadlist, &itor, &bp) == 0) { - if (bp.blk_birth <= ds->ds_phys->ds_prev_snap_txg) { - VERIFY(0 == bplist_enqueue(&ds->ds_deadlist, - &bp, tx)); - if (ds_prev && !after_branch_point && - bp.blk_birth > - ds_prev->ds_phys->ds_prev_snap_txg) { - ds_prev->ds_phys->ds_unique_bytes += - bp_get_dasize(dp->dp_spa, &bp); - } - } else { - used += bp_get_dasize(dp->dp_spa, &bp); - compressed += BP_GET_PSIZE(&bp); - uncompressed += BP_GET_UCSIZE(&bp); - /* XXX check return value? */ - (void) dsl_free(zio, dp, tx->tx_txg, - &bp, NULL, NULL, ARC_NOWAIT); - } - } - ASSERT3U(used, ==, ds->ds_phys->ds_unique_bytes); + if (ds_next->ds_deadlist.dl_oldfmt) { + process_old_deadlist(ds, ds_prev, ds_next, + after_branch_point, tx); + } else { + /* Adjust prev's unique space. */ + if (ds_prev && !after_branch_point) { + dsl_deadlist_space_range(&ds_next->ds_deadlist, + ds_prev->ds_phys->ds_prev_snap_txg, + ds->ds_phys->ds_prev_snap_txg, + &used, &comp, &uncomp); + ds_prev->ds_phys->ds_unique_bytes += used; + } - /* change snapused */ - dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP, - -used, -compressed, -uncompressed, tx); + /* Adjust snapused. */ + dsl_deadlist_space_range(&ds_next->ds_deadlist, + ds->ds_phys->ds_prev_snap_txg, UINT64_MAX, + &used, &comp, &uncomp); + dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP, + -used, -comp, -uncomp, tx); + + /* Move blocks to be freed to pool's free list. */ + dsl_deadlist_move_bpobj(&ds_next->ds_deadlist, + &dp->dp_free_bpobj, ds->ds_phys->ds_prev_snap_txg, + tx); + dsl_dir_diduse_space(tx->tx_pool->dp_free_dir, + DD_USED_HEAD, used, comp, uncomp, tx); + dsl_dir_dirty(tx->tx_pool->dp_free_dir, tx); + + /* Merge our deadlist into next's and free it. */ + dsl_deadlist_merge(&ds_next->ds_deadlist, + ds->ds_phys->ds_deadlist_obj, tx); + } + dsl_deadlist_close(&ds->ds_deadlist); + dsl_deadlist_free(mos, ds->ds_phys->ds_deadlist_obj, tx); - /* free next's deadlist */ - bplist_close(&ds_next->ds_deadlist); - bplist_destroy(mos, ds_next->ds_phys->ds_deadlist_obj, tx); + /* Collapse range in clone heads */ + dsl_dataset_remove_clones_key(ds, + ds->ds_phys->ds_creation_txg, tx); - /* set next's deadlist to our deadlist */ - bplist_close(&ds->ds_deadlist); - ds_next->ds_phys->ds_deadlist_obj = - ds->ds_phys->ds_deadlist_obj; - VERIFY(0 == bplist_open(&ds_next->ds_deadlist, mos, - ds_next->ds_phys->ds_deadlist_obj)); - ds->ds_phys->ds_deadlist_obj = 0; + if (dsl_dataset_is_snapshot(ds_next)) { + dsl_dataset_t *ds_nextnext; - if (ds_next->ds_phys->ds_next_snap_obj != 0) { /* * Update next's unique to include blocks which * were previously shared by only this snapshot @@ -1843,25 +1760,27 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) * died after the next snap and before the one * after that (ie. be on the snap after next's * deadlist). - * - * XXX we're doing this long task with the - * config lock held */ - dsl_dataset_t *ds_after_next; - uint64_t space; - VERIFY(0 == dsl_dataset_hold_obj(dp, ds_next->ds_phys->ds_next_snap_obj, - FTAG, &ds_after_next)); - - VERIFY(0 == - bplist_space_birthrange(&ds_after_next->ds_deadlist, + FTAG, &ds_nextnext)); + dsl_deadlist_space_range(&ds_nextnext->ds_deadlist, ds->ds_phys->ds_prev_snap_txg, - ds->ds_phys->ds_creation_txg, &space)); - ds_next->ds_phys->ds_unique_bytes += space; - - dsl_dataset_rele(ds_after_next, FTAG); + ds->ds_phys->ds_creation_txg, + &used, &comp, &uncomp); + ds_next->ds_phys->ds_unique_bytes += used; + dsl_dataset_rele(ds_nextnext, FTAG); ASSERT3P(ds_next->ds_prev, ==, NULL); + + /* Collapse range in this head. */ + dsl_dataset_t *hds; + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, + ds->ds_dir->dd_phys->dd_head_dataset_obj, + FTAG, &hds)); + dsl_deadlist_remove_key(&hds->ds_deadlist, + ds->ds_phys->ds_creation_txg, tx); + dsl_dataset_rele(hds, FTAG); + } else { ASSERT3P(ds_next->ds_prev, ==, ds); dsl_dataset_drop_ref(ds_next->ds_prev, ds_next); @@ -1901,9 +1820,8 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) */ struct killarg ka; - ASSERT(after_branch_point || bplist_empty(&ds->ds_deadlist)); - bplist_close(&ds->ds_deadlist); - bplist_destroy(mos, ds->ds_phys->ds_deadlist_obj, tx); + dsl_deadlist_close(&ds->ds_deadlist); + dsl_deadlist_free(mos, ds->ds_phys->ds_deadlist_obj, tx); ds->ds_phys->ds_deadlist_obj = 0; /* @@ -1914,17 +1832,23 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) * freed all the objects in open context. */ ka.ds = ds; - ka.zio = zio; ka.tx = tx; err = traverse_dataset(ds, ds->ds_phys->ds_prev_snap_txg, TRAVERSE_POST, kill_blkptr, &ka); ASSERT3U(err, ==, 0); ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) || ds->ds_phys->ds_unique_bytes == 0); - } - err = zio_wait(zio); - ASSERT3U(err, ==, 0); + if (ds->ds_prev != NULL) { + if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { + VERIFY3U(0, ==, zap_remove_int(mos, + ds->ds_prev->ds_dir->dd_phys->dd_clones, + ds->ds_object, tx)); + } + dsl_dataset_rele(ds->ds_prev, ds); + ds->ds_prev = ds_prev = NULL; + } + } if (ds->ds_dir->dd_phys->dd_head_dataset_obj == ds->ds_object) { /* Erase the link in the dir */ @@ -1959,8 +1883,8 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) dsl_dataset_rele(ds_prev, FTAG); spa_prop_clear_bootfs(dp->dp_spa, ds->ds_object, tx); - spa_history_internal_log(LOG_DS_DESTROY, dp->dp_spa, tx, - cr, "dataset = %llu", ds->ds_object); + spa_history_log_internal(LOG_DS_DESTROY, dp->dp_spa, tx, + "dataset = %llu", ds->ds_object); if (ds->ds_phys->ds_next_clones_obj != 0) { uint64_t count; @@ -1982,20 +1906,10 @@ dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) /* * Remove the origin of the clone we just destroyed. */ - dsl_dataset_t *origin = ds->ds_prev; struct dsl_ds_destroyarg ndsda = {0}; - ASSERT3P(origin, ==, dsda->rm_origin); - if (origin->ds_user_ptr) { - origin->ds_user_evict_func(origin, origin->ds_user_ptr); - origin->ds_user_ptr = NULL; - } - - dsl_dataset_rele(origin, tag); - ds->ds_prev = NULL; - - ndsda.ds = origin; - dsl_dataset_destroy_sync(&ndsda, tag, cr, tx); + ndsda.ds = dsda->rm_origin; + dsl_dataset_destroy_sync(&ndsda, tag, tx); } } @@ -2012,7 +1926,8 @@ dsl_dataset_snapshot_reserve_space(dsl_dataset_t *ds, dmu_tx_t *tx) * owned by the snapshot dataset must be accommodated by space * outside of the reservation. */ - asize = MIN(dsl_dataset_unique(ds), ds->ds_reserved); + ASSERT(ds->ds_reserved == 0 || DS_UNIQUE_IS_ACCURATE(ds)); + asize = MIN(ds->ds_phys->ds_unique_bytes, ds->ds_reserved); if (asize > dsl_dir_space_available(ds->ds_dir, NULL, 0, FALSE)) return (ENOSPC); @@ -2026,7 +1941,6 @@ dsl_dataset_snapshot_reserve_space(dsl_dataset_t *ds, dmu_tx_t *tx) return (0); } -/* ARGSUSED */ int dsl_dataset_snapshot_check(void *arg1, void *arg2, dmu_tx_t *tx) { @@ -2067,7 +1981,7 @@ dsl_dataset_snapshot_check(void *arg1, void *arg2, dmu_tx_t *tx) } void -dsl_dataset_snapshot_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_snapshot_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; const char *snapname = arg2; @@ -2125,8 +2039,8 @@ dsl_dataset_snapshot_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) ds->ds_prev->ds_phys->ds_creation_txg); ds->ds_prev->ds_phys->ds_next_snap_obj = dsobj; } else if (next_clones_obj != 0) { - VERIFY3U(0, ==, zap_remove_int(mos, - next_clones_obj, dsphys->ds_next_snap_obj, tx)); + remove_from_next_clones(ds->ds_prev, + dsphys->ds_next_snap_obj, tx); VERIFY3U(0, ==, zap_add_int(mos, next_clones_obj, dsobj, tx)); } @@ -2138,25 +2052,31 @@ dsl_dataset_snapshot_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) * since our unique space is going to zero. */ if (ds->ds_reserved) { - int64_t add = MIN(dsl_dataset_unique(ds), ds->ds_reserved); + int64_t delta; + ASSERT(DS_UNIQUE_IS_ACCURATE(ds)); + delta = MIN(ds->ds_phys->ds_unique_bytes, ds->ds_reserved); dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, - add, 0, 0, tx); + delta, 0, 0, tx); } - bplist_close(&ds->ds_deadlist); dmu_buf_will_dirty(ds->ds_dbuf, tx); + zfs_dbgmsg("taking snapshot %s@%s/%llu; newkey=%llu", + ds->ds_dir->dd_myname, snapname, dsobj, + ds->ds_phys->ds_prev_snap_txg); + ds->ds_phys->ds_deadlist_obj = dsl_deadlist_clone(&ds->ds_deadlist, + UINT64_MAX, ds->ds_phys->ds_prev_snap_obj, tx); + dsl_deadlist_close(&ds->ds_deadlist); + dsl_deadlist_open(&ds->ds_deadlist, mos, ds->ds_phys->ds_deadlist_obj); + dsl_deadlist_add_key(&ds->ds_deadlist, + ds->ds_phys->ds_prev_snap_txg, tx); + ASSERT3U(ds->ds_phys->ds_prev_snap_txg, <, tx->tx_txg); ds->ds_phys->ds_prev_snap_obj = dsobj; ds->ds_phys->ds_prev_snap_txg = crtxg; ds->ds_phys->ds_unique_bytes = 0; if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE) ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; - ds->ds_phys->ds_deadlist_obj = - bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); - VERIFY(0 == bplist_open(&ds->ds_deadlist, mos, - ds->ds_phys->ds_deadlist_obj)); - dprintf("snap '%s' -> obj %llu\n", snapname, dsobj); err = zap_add(mos, ds->ds_phys->ds_snapnames_zapobj, snapname, 8, 1, &dsobj, tx); ASSERT(err == 0); @@ -2166,9 +2086,11 @@ dsl_dataset_snapshot_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) VERIFY(0 == dsl_dataset_get_ref(dp, ds->ds_phys->ds_prev_snap_obj, ds, &ds->ds_prev)); - dsl_pool_ds_snapshotted(ds, tx); + dsl_scan_ds_snapshotted(ds, tx); + + dsl_dir_snap_cmtime_update(ds->ds_dir); - spa_history_internal_log(LOG_DS_SNAPSHOT, dp->dp_spa, tx, cr, + spa_history_log_internal(LOG_DS_SNAPSHOT, dp->dp_spa, tx, "dataset = %llu", dsobj); } @@ -2176,7 +2098,7 @@ void dsl_dataset_sync(dsl_dataset_t *ds, zio_t *zio, dmu_tx_t *tx) { ASSERT(dmu_tx_is_syncing(tx)); - ASSERT(ds->ds_user_ptr != NULL); + ASSERT(ds->ds_objset != NULL); ASSERT(ds->ds_phys->ds_next_snap_obj == 0); /* @@ -2187,7 +2109,7 @@ dsl_dataset_sync(dsl_dataset_t *ds, zio_t *zio, dmu_tx_t *tx) ds->ds_phys->ds_fsid_guid = ds->ds_fsid_guid; dsl_dir_dirty(ds->ds_dir, tx); - dmu_objset_sync(ds->ds_user_ptr, zio, tx); + dmu_objset_sync(ds->ds_objset, zio, tx); } void @@ -2211,7 +2133,12 @@ dsl_dataset_stats(dsl_dataset_t *ds, nvlist_t *nv) ds->ds_reserved); dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_GUID, ds->ds_phys->ds_guid); - dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERREFS, ds->ds_userrefs); + dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_UNIQUE, + ds->ds_phys->ds_unique_bytes); + dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_OBJSETID, + ds->ds_object); + dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERREFS, + ds->ds_userrefs); dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_DEFER_DESTROY, DS_IS_DEFER_DESTROY(ds) ? 1 : 0); @@ -2335,8 +2262,7 @@ dsl_dataset_snapshot_rename_check(void *arg1, void *arg2, dmu_tx_t *tx) } static void -dsl_dataset_snapshot_rename_sync(void *arg1, void *arg2, - cred_t *cr, dmu_tx_t *tx) +dsl_dataset_snapshot_rename_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; const char *newsnapname = arg2; @@ -2360,8 +2286,8 @@ dsl_dataset_snapshot_rename_sync(void *arg1, void *arg2, ds->ds_snapname, 8, 1, &ds->ds_object, tx); ASSERT3U(err, ==, 0); - spa_history_internal_log(LOG_DS_RENAME, dd->dd_pool->dp_spa, tx, - cr, "dataset = %llu", ds->ds_object); + spa_history_log_internal(LOG_DS_RENAME, dd->dd_pool->dp_spa, tx, + "dataset = %llu", ds->ds_object); dsl_dataset_rele(hds, FTAG); } @@ -2373,43 +2299,36 @@ struct renamesnaparg { }; static int -dsl_snapshot_rename_one(char *name, void *arg) +dsl_snapshot_rename_one(const char *name, void *arg) { struct renamesnaparg *ra = arg; dsl_dataset_t *ds = NULL; - char *cp; + char *snapname; int err; - cp = name + strlen(name); - *cp = '@'; - (void) strcpy(cp + 1, ra->oldsnap); + snapname = kmem_asprintf("%s@%s", name, ra->oldsnap); + (void) strlcpy(ra->failed, snapname, sizeof (ra->failed)); /* * For recursive snapshot renames the parent won't be changing * so we just pass name for both the to/from argument. */ - err = zfs_secpolicy_rename_perms(name, name, CRED()); - if (err == ENOENT) { - return (0); - } else if (err) { - (void) strcpy(ra->failed, name); - return (err); + err = zfs_secpolicy_rename_perms(snapname, snapname, CRED()); + if (err != 0) { + strfree(snapname); + return (err == ENOENT ? 0 : err); } #ifdef _KERNEL /* * For all filesystems undergoing rename, we'll need to unmount it. */ - (void) zfs_unmount_snap(name, NULL); + (void) zfs_unmount_snap(snapname, NULL); #endif - err = dsl_dataset_hold(name, ra->dstg, &ds); - *cp = '\0'; - if (err == ENOENT) { - return (0); - } else if (err) { - (void) strcpy(ra->failed, name); - return (err); - } + err = dsl_dataset_hold(snapname, ra->dstg, &ds); + strfree(snapname); + if (err != 0) + return (err == ENOENT ? 0 : err); dsl_sync_task_create(ra->dstg, dsl_dataset_snapshot_rename_check, dsl_dataset_snapshot_rename_sync, ds, ra->newsnap, 0); @@ -2425,7 +2344,7 @@ dsl_recursive_rename(char *oldname, const char *newname) dsl_sync_task_t *dst; spa_t *spa; char *cp, *fsname = spa_strdup(oldname); - int len = strlen(oldname); + int len = strlen(oldname) + 1; /* truncate the snapshot name to get the fsname */ cp = strchr(fsname, '@'); @@ -2433,7 +2352,7 @@ dsl_recursive_rename(char *oldname, const char *newname) err = spa_open(fsname, &spa, FTAG); if (err) { - kmem_free(fsname, len + 1); + kmem_free(fsname, len); return (err); } ra = kmem_alloc(sizeof (struct renamesnaparg), KM_SLEEP); @@ -2445,7 +2364,7 @@ dsl_recursive_rename(char *oldname, const char *newname) err = dmu_objset_find(fsname, dsl_snapshot_rename_one, ra, DS_FIND_CHILDREN); - kmem_free(fsname, len + 1); + kmem_free(fsname, len); if (err == 0) { err = dsl_sync_task_group_wait(ra->dstg); @@ -2456,14 +2375,15 @@ dsl_recursive_rename(char *oldname, const char *newname) dsl_dataset_t *ds = dst->dst_arg1; if (dst->dst_err) { dsl_dir_name(ds->ds_dir, ra->failed); - (void) strcat(ra->failed, "@"); - (void) strcat(ra->failed, ra->newsnap); + (void) strlcat(ra->failed, "@", sizeof (ra->failed)); + (void) strlcat(ra->failed, ra->newsnap, + sizeof (ra->failed)); } dsl_dataset_rele(ds, ra->dstg); } if (err) - (void) strcpy(oldname, ra->failed); + (void) strlcpy(oldname, ra->failed, sizeof (ra->failed)); dsl_sync_task_group_destroy(ra->dstg); kmem_free(ra, sizeof (struct renamesnaparg)); @@ -2472,7 +2392,7 @@ dsl_recursive_rename(char *oldname, const char *newname) } static int -dsl_valid_rename(char *oldname, void *arg) +dsl_valid_rename(const char *oldname, void *arg) { int delta = *(int *)arg; @@ -2494,12 +2414,7 @@ dsl_dataset_rename(char *oldname, const char *newname, boolean_t recursive) err = dsl_dir_open(oldname, FTAG, &dd, &tail); if (err) return (err); - /* - * If there are more than 2 references there may be holds - * hanging around that haven't been cleared out yet. - */ - if (dmu_buf_refcount(dd->dd_dbuf) > 2) - txg_wait_synced(dd->dd_pool, 0); + if (tail == NULL) { int delta = strlen(newname) - strlen(oldname); @@ -2508,13 +2423,14 @@ dsl_dataset_rename(char *oldname, const char *newname, boolean_t recursive) err = dmu_objset_find(oldname, dsl_valid_rename, &delta, DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS); - if (!err) + if (err == 0) err = dsl_dir_rename(dd, newname); dsl_dir_close(dd, FTAG); return (err); } + if (tail[0] != '@') { - /* the name ended in a nonexistant component */ + /* the name ended in a nonexistent component */ dsl_dir_close(dd, FTAG); return (ENOENT); } @@ -2553,13 +2469,14 @@ struct promotenode { struct promotearg { list_t shared_snaps, origin_snaps, clone_snaps; - dsl_dataset_t *origin_origin, *origin_head; + dsl_dataset_t *origin_origin; uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap; + char *err_ds; }; static int snaplist_space(list_t *l, uint64_t mintxg, uint64_t *spacep); +static boolean_t snaplist_unstable(list_t *l); -/* ARGSUSED */ static int dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) { @@ -2568,6 +2485,7 @@ dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) struct promotenode *snap = list_head(&pa->shared_snaps); dsl_dataset_t *origin_ds = snap->ds; int err; + uint64_t unused; /* Check that it is a real clone */ if (!dsl_dir_is_clone(hds->ds_dir)) @@ -2583,10 +2501,9 @@ dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) /* compute origin's new unique space */ snap = list_tail(&pa->clone_snaps); ASSERT3U(snap->ds->ds_phys->ds_prev_snap_obj, ==, origin_ds->ds_object); - err = bplist_space_birthrange(&snap->ds->ds_deadlist, - origin_ds->ds_phys->ds_prev_snap_txg, UINT64_MAX, &pa->unique); - if (err) - return (err); + dsl_deadlist_space_range(&snap->ds->ds_deadlist, + origin_ds->ds_phys->ds_prev_snap_txg, UINT64_MAX, + &pa->unique, &unused, &unused); /* * Walk the snapshots that we are moving @@ -2614,18 +2531,19 @@ dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) /* Check that the snapshot name does not conflict */ VERIFY(0 == dsl_dataset_get_snapname(ds)); err = dsl_dataset_snap_lookup(hds, ds->ds_snapname, &val); - if (err == 0) - return (EEXIST); + if (err == 0) { + err = EEXIST; + goto out; + } if (err != ENOENT) - return (err); + goto out; /* The very first snapshot does not have a deadlist */ if (ds->ds_phys->ds_prev_snap_obj == 0) continue; - if (err = bplist_space(&ds->ds_deadlist, - &dlused, &dlcomp, &dluncomp)) - return (err); + dsl_deadlist_space(&ds->ds_deadlist, + &dlused, &dlcomp, &dluncomp); pa->used += dlused; pa->comp += dlcomp; pa->uncomp += dluncomp; @@ -2658,19 +2576,19 @@ dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) /* * Note, typically this will not be a clone of a clone, - * so snap->ds->ds_origin_txg will be < TXG_INITIAL, so - * these snaplist_space() -> bplist_space_birthrange() + * so dd_origin_txg will be < TXG_INITIAL, so + * these snaplist_space() -> dsl_deadlist_space_range() * calls will be fast because they do not have to * iterate over all bps. */ snap = list_head(&pa->origin_snaps); err = snaplist_space(&pa->shared_snaps, - snap->ds->ds_origin_txg, &pa->cloneusedsnap); + snap->ds->ds_dir->dd_origin_txg, &pa->cloneusedsnap); if (err) return (err); err = snaplist_space(&pa->clone_snaps, - snap->ds->ds_origin_txg, &space); + snap->ds->ds_dir->dd_origin_txg, &space); if (err) return (err); pa->cloneusedsnap += space; @@ -2683,10 +2601,13 @@ dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) } return (0); +out: + pa->err_ds = snap->ds->ds_snapname; + return (err); } static void -dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_promote_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *hds = arg1; struct promotearg *pa = arg2; @@ -2720,9 +2641,7 @@ dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) /* change the origin's next clone */ if (origin_ds->ds_phys->ds_next_clones_obj) { - VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, - origin_ds->ds_phys->ds_next_clones_obj, - origin_ds->ds_phys->ds_next_snap_obj, tx)); + remove_from_next_clones(origin_ds, snap->ds->ds_object, tx); VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset, origin_ds->ds_phys->ds_next_clones_obj, oldnext_obj, tx)); @@ -2732,10 +2651,31 @@ dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) dmu_buf_will_dirty(dd->dd_dbuf, tx); ASSERT3U(dd->dd_phys->dd_origin_obj, ==, origin_ds->ds_object); dd->dd_phys->dd_origin_obj = odd->dd_phys->dd_origin_obj; - hds->ds_origin_txg = origin_head->ds_origin_txg; + dd->dd_origin_txg = origin_head->ds_dir->dd_origin_txg; dmu_buf_will_dirty(odd->dd_dbuf, tx); odd->dd_phys->dd_origin_obj = origin_ds->ds_object; - origin_head->ds_origin_txg = origin_ds->ds_phys->ds_creation_txg; + origin_head->ds_dir->dd_origin_txg = + origin_ds->ds_phys->ds_creation_txg; + + /* change dd_clone entries */ + if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { + VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, + odd->dd_phys->dd_clones, hds->ds_object, tx)); + VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset, + pa->origin_origin->ds_dir->dd_phys->dd_clones, + hds->ds_object, tx)); + + VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, + pa->origin_origin->ds_dir->dd_phys->dd_clones, + origin_head->ds_object, tx)); + if (dd->dd_phys->dd_clones == 0) { + dd->dd_phys->dd_clones = zap_create(dp->dp_meta_objset, + DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx); + } + VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset, + dd->dd_phys->dd_clones, origin_head->ds_object, tx)); + + } /* move snapshots to this dir */ for (snap = list_head(&pa->shared_snaps); snap; @@ -2743,9 +2683,9 @@ dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) dsl_dataset_t *ds = snap->ds; /* unregister props as dsl_dir is changing */ - if (ds->ds_user_ptr) { - ds->ds_user_evict_func(ds, ds->ds_user_ptr); - ds->ds_user_ptr = NULL; + if (ds->ds_objset) { + dmu_objset_evict(ds->ds_objset); + ds->ds_objset = NULL; } /* move snap name entry */ VERIFY(0 == dsl_dataset_get_snapname(ds)); @@ -2754,6 +2694,7 @@ dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) VERIFY(0 == zap_add(dp->dp_meta_objset, hds->ds_phys->ds_snapnames_zapobj, ds->ds_snapname, 8, 1, &ds->ds_object, tx)); + /* change containing dsl_dir */ dmu_buf_will_dirty(ds->ds_dbuf, tx); ASSERT3U(ds->ds_phys->ds_dir_obj, ==, odd->dd_object); @@ -2763,6 +2704,40 @@ dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) VERIFY(0 == dsl_dir_open_obj(dp, dd->dd_object, NULL, ds, &ds->ds_dir)); + /* move any clone references */ + if (ds->ds_phys->ds_next_clones_obj && + spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { + zap_cursor_t zc; + zap_attribute_t za; + + for (zap_cursor_init(&zc, dp->dp_meta_objset, + ds->ds_phys->ds_next_clones_obj); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) { + dsl_dataset_t *cnds; + uint64_t o; + + if (za.za_first_integer == oldnext_obj) { + /* + * We've already moved the + * origin's reference. + */ + continue; + } + + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, + za.za_first_integer, FTAG, &cnds)); + o = cnds->ds_dir->dd_phys->dd_head_dataset_obj; + + VERIFY3U(zap_remove_int(dp->dp_meta_objset, + odd->dd_phys->dd_clones, o, tx), ==, 0); + VERIFY3U(zap_add_int(dp->dp_meta_objset, + dd->dd_phys->dd_clones, o, tx), ==, 0); + dsl_dataset_rele(cnds, FTAG); + } + zap_cursor_fini(&zc); + } + ASSERT3U(dsl_prop_numcb(ds), ==, 0); } @@ -2792,8 +2767,8 @@ dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) origin_ds->ds_phys->ds_unique_bytes = pa->unique; /* log history record */ - spa_history_internal_log(LOG_DS_PROMOTE, dd->dd_pool->dp_spa, tx, - cr, "dataset = %llu", hds->ds_object); + spa_history_log_internal(LOG_DS_PROMOTE, dd->dd_pool->dp_spa, tx, + "dataset = %llu", hds->ds_object); dsl_dir_close(odd, FTAG); } @@ -2858,11 +2833,9 @@ snaplist_space(list_t *l, uint64_t mintxg, uint64_t *spacep) *spacep = 0; for (snap = list_head(l); snap; snap = list_next(l, snap)) { - uint64_t used; - int err = bplist_space_birthrange(&snap->ds->ds_deadlist, - mintxg, UINT64_MAX, &used); - if (err) - return (err); + uint64_t used, comp, uncomp; + dsl_deadlist_space_range(&snap->ds->ds_deadlist, + mintxg, UINT64_MAX, &used, &comp, &uncomp); *spacep += used; } return (0); @@ -2897,7 +2870,7 @@ snaplist_destroy(list_t *l, boolean_t own) * NULL, indicating that the clone is not a clone of a clone). */ int -dsl_dataset_promote(const char *name) +dsl_dataset_promote(const char *name, char *conflsnap) { dsl_dataset_t *ds; dsl_dir_t *dd; @@ -2949,10 +2922,10 @@ dsl_dataset_promote(const char *name) if (err != 0) goto out; - if (dsl_dir_is_clone(snap->ds->ds_dir)) { - err = dsl_dataset_own_obj(dp, + if (snap->ds->ds_dir->dd_phys->dd_origin_obj != 0) { + err = dsl_dataset_hold_obj(dp, snap->ds->ds_dir->dd_phys->dd_origin_obj, - 0, FTAG, &pa.origin_origin); + FTAG, &pa.origin_origin); if (err != 0) goto out; } @@ -2968,14 +2941,16 @@ out: if (err == 0) { err = dsl_sync_task_do(dp, dsl_dataset_promote_check, dsl_dataset_promote_sync, ds, &pa, - 2 + 2 * doi.doi_physical_blks); + 2 + 2 * doi.doi_physical_blocks_512); + if (err && pa.err_ds && conflsnap) + (void) strncpy(conflsnap, pa.err_ds, MAXNAMELEN); } snaplist_destroy(&pa.shared_snaps, B_TRUE); snaplist_destroy(&pa.clone_snaps, B_FALSE); snaplist_destroy(&pa.origin_snaps, B_FALSE); if (pa.origin_origin) - dsl_dataset_disown(pa.origin_origin, FTAG); + dsl_dataset_rele(pa.origin_origin, FTAG); dsl_dataset_rele(ds, FTAG); return (err); } @@ -3002,9 +2977,11 @@ dsl_dataset_clone_swap_check(void *arg1, void *arg2, dmu_tx_t *tx) if (csa->cds->ds_prev != csa->ohds->ds_prev) return (EINVAL); - /* cds should be the clone */ - if (csa->cds->ds_prev->ds_phys->ds_next_snap_obj != - csa->ohds->ds_object) + /* cds should be the clone (unless they are unrelated) */ + if (csa->cds->ds_prev != NULL && + csa->cds->ds_prev != csa->cds->ds_dir->dd_pool->dp_origin_snap && + csa->ohds->ds_object != + csa->cds->ds_prev->ds_phys->ds_next_snap_obj) return (EINVAL); /* the clone should be a child of the origin */ @@ -3027,38 +3004,49 @@ dsl_dataset_clone_swap_check(void *arg1, void *arg2, dmu_tx_t *tx) dsl_dir_space_available(csa->ohds->ds_dir, NULL, 0, TRUE)) return (ENOSPC); + if (csa->ohds->ds_quota != 0 && + csa->cds->ds_phys->ds_unique_bytes > csa->ohds->ds_quota) + return (EDQUOT); + return (0); } /* ARGSUSED */ static void -dsl_dataset_clone_swap_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_clone_swap_sync(void *arg1, void *arg2, dmu_tx_t *tx) { struct cloneswaparg *csa = arg1; dsl_pool_t *dp = csa->cds->ds_dir->dd_pool; ASSERT(csa->cds->ds_reserved == 0); - ASSERT(csa->cds->ds_quota == csa->ohds->ds_quota); + ASSERT(csa->ohds->ds_quota == 0 || + csa->cds->ds_phys->ds_unique_bytes <= csa->ohds->ds_quota); dmu_buf_will_dirty(csa->cds->ds_dbuf, tx); dmu_buf_will_dirty(csa->ohds->ds_dbuf, tx); - dmu_buf_will_dirty(csa->cds->ds_prev->ds_dbuf, tx); - if (csa->cds->ds_user_ptr != NULL) { - csa->cds->ds_user_evict_func(csa->cds, csa->cds->ds_user_ptr); - csa->cds->ds_user_ptr = NULL; + if (csa->cds->ds_objset != NULL) { + dmu_objset_evict(csa->cds->ds_objset); + csa->cds->ds_objset = NULL; } - if (csa->ohds->ds_user_ptr != NULL) { - csa->ohds->ds_user_evict_func(csa->ohds, - csa->ohds->ds_user_ptr); - csa->ohds->ds_user_ptr = NULL; + if (csa->ohds->ds_objset != NULL) { + dmu_objset_evict(csa->ohds->ds_objset); + csa->ohds->ds_objset = NULL; } - /* reset origin's unique bytes */ - VERIFY(0 == bplist_space_birthrange(&csa->cds->ds_deadlist, - csa->cds->ds_prev->ds_phys->ds_prev_snap_txg, UINT64_MAX, - &csa->cds->ds_prev->ds_phys->ds_unique_bytes)); + /* + * Reset origin's unique bytes, if it exists. + */ + if (csa->cds->ds_prev) { + dsl_dataset_t *origin = csa->cds->ds_prev; + uint64_t comp, uncomp; + + dmu_buf_will_dirty(origin->ds_dbuf, tx); + dsl_deadlist_space_range(&csa->cds->ds_deadlist, + origin->ds_phys->ds_prev_snap_txg, UINT64_MAX, + &origin->ds_phys->ds_unique_bytes, &comp, &uncomp); + } /* swap blkptrs */ { @@ -3077,10 +3065,10 @@ dsl_dataset_clone_swap_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) ASSERT3U(csa->cds->ds_dir->dd_phys-> dd_used_breakdown[DD_USED_SNAP], ==, 0); - VERIFY(0 == bplist_space(&csa->cds->ds_deadlist, &cdl_used, - &cdl_comp, &cdl_uncomp)); - VERIFY(0 == bplist_space(&csa->ohds->ds_deadlist, &odl_used, - &odl_comp, &odl_uncomp)); + dsl_deadlist_space(&csa->cds->ds_deadlist, + &cdl_used, &cdl_comp, &cdl_uncomp); + dsl_deadlist_space(&csa->ohds->ds_deadlist, + &odl_used, &odl_comp, &odl_uncomp); dused = csa->cds->ds_phys->ds_used_bytes + cdl_used - (csa->ohds->ds_phys->ds_used_bytes + odl_used); @@ -3101,21 +3089,16 @@ dsl_dataset_clone_swap_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) * deadlist (since that's the only thing that's * changing that affects the snapused). */ - VERIFY(0 == bplist_space_birthrange(&csa->cds->ds_deadlist, - csa->ohds->ds_origin_txg, UINT64_MAX, &cdl_used)); - VERIFY(0 == bplist_space_birthrange(&csa->ohds->ds_deadlist, - csa->ohds->ds_origin_txg, UINT64_MAX, &odl_used)); + dsl_deadlist_space_range(&csa->cds->ds_deadlist, + csa->ohds->ds_dir->dd_origin_txg, UINT64_MAX, + &cdl_used, &cdl_comp, &cdl_uncomp); + dsl_deadlist_space_range(&csa->ohds->ds_deadlist, + csa->ohds->ds_dir->dd_origin_txg, UINT64_MAX, + &odl_used, &odl_comp, &odl_uncomp); dsl_dir_transfer_space(csa->ohds->ds_dir, cdl_used - odl_used, DD_USED_HEAD, DD_USED_SNAP, tx); } -#define SWITCH64(x, y) \ - { \ - uint64_t __tmp = (x); \ - (x) = (y); \ - (y) = __tmp; \ - } - /* swap ds_*_bytes */ SWITCH64(csa->ohds->ds_phys->ds_used_bytes, csa->cds->ds_phys->ds_used_bytes); @@ -3130,22 +3113,26 @@ dsl_dataset_clone_swap_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) dsl_dir_diduse_space(csa->ohds->ds_dir, DD_USED_REFRSRV, csa->unused_refres_delta, 0, 0, tx); - /* swap deadlists */ - bplist_close(&csa->cds->ds_deadlist); - bplist_close(&csa->ohds->ds_deadlist); + /* + * Swap deadlists. + */ + dsl_deadlist_close(&csa->cds->ds_deadlist); + dsl_deadlist_close(&csa->ohds->ds_deadlist); SWITCH64(csa->ohds->ds_phys->ds_deadlist_obj, csa->cds->ds_phys->ds_deadlist_obj); - VERIFY(0 == bplist_open(&csa->cds->ds_deadlist, dp->dp_meta_objset, - csa->cds->ds_phys->ds_deadlist_obj)); - VERIFY(0 == bplist_open(&csa->ohds->ds_deadlist, dp->dp_meta_objset, - csa->ohds->ds_phys->ds_deadlist_obj)); + dsl_deadlist_open(&csa->cds->ds_deadlist, dp->dp_meta_objset, + csa->cds->ds_phys->ds_deadlist_obj); + dsl_deadlist_open(&csa->ohds->ds_deadlist, dp->dp_meta_objset, + csa->ohds->ds_phys->ds_deadlist_obj); - dsl_pool_ds_clone_swapped(csa->ohds, csa->cds, tx); + dsl_scan_ds_clone_swapped(csa->ohds, csa->cds, tx); } /* - * Swap 'clone' with its origin head file system. Used at the end - * of "online recv" to swizzle the file system to the new version. + * Swap 'clone' with its origin head datasets. Used at the end of "zfs + * recv" into an existing fs to swizzle the file system to the new + * version, and by "zfs rollback". Can also be used to swap two + * independent head datasets if neither has any snapshots. */ int dsl_dataset_clone_swap(dsl_dataset_t *clone, dsl_dataset_t *origin_head, @@ -3254,62 +3241,70 @@ static int dsl_dataset_set_quota_check(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - uint64_t *quotap = arg2; - uint64_t new_quota = *quotap; + dsl_prop_setarg_t *psa = arg2; + int err; if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_REFQUOTA) return (ENOTSUP); - if (new_quota == 0) + if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0) + return (err); + + if (psa->psa_effective_value == 0) return (0); - if (new_quota < ds->ds_phys->ds_used_bytes || - new_quota < ds->ds_reserved) + if (psa->psa_effective_value < ds->ds_phys->ds_used_bytes || + psa->psa_effective_value < ds->ds_reserved) return (ENOSPC); return (0); } -/* ARGSUSED */ +extern void dsl_prop_set_sync(void *, void *, dmu_tx_t *); + void -dsl_dataset_set_quota_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_set_quota_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - uint64_t *quotap = arg2; - uint64_t new_quota = *quotap; + dsl_prop_setarg_t *psa = arg2; + uint64_t effective_value = psa->psa_effective_value; - dmu_buf_will_dirty(ds->ds_dbuf, tx); - - ds->ds_quota = new_quota; + dsl_prop_set_sync(ds, psa, tx); + DSL_PROP_CHECK_PREDICTION(ds->ds_dir, psa); - dsl_dir_prop_set_uint64_sync(ds->ds_dir, "refquota", new_quota, cr, tx); + if (ds->ds_quota != effective_value) { + dmu_buf_will_dirty(ds->ds_dbuf, tx); + ds->ds_quota = effective_value; - spa_history_internal_log(LOG_DS_REFQUOTA, ds->ds_dir->dd_pool->dp_spa, - tx, cr, "%lld dataset = %llu ", - (longlong_t)new_quota, ds->ds_object); + spa_history_log_internal(LOG_DS_REFQUOTA, + ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu ", + (longlong_t)ds->ds_quota, ds->ds_object); + } } int -dsl_dataset_set_quota(const char *dsname, uint64_t quota) +dsl_dataset_set_quota(const char *dsname, zprop_source_t source, uint64_t quota) { dsl_dataset_t *ds; + dsl_prop_setarg_t psa; int err; + dsl_prop_setarg_init_uint64(&psa, "refquota", source, "a); + err = dsl_dataset_hold(dsname, FTAG, &ds); if (err) return (err); - if (quota != ds->ds_quota) { - /* - * If someone removes a file, then tries to set the quota, we - * want to make sure the file freeing takes effect. - */ - txg_wait_open(ds->ds_dir->dd_pool, 0); + /* + * If someone removes a file, then tries to set the quota, we + * want to make sure the file freeing takes effect. + */ + txg_wait_open(ds->ds_dir->dd_pool, 0); + + err = dsl_sync_task_do(ds->ds_dir->dd_pool, + dsl_dataset_set_quota_check, dsl_dataset_set_quota_sync, + ds, &psa, 0); - err = dsl_sync_task_do(ds->ds_dir->dd_pool, - dsl_dataset_set_quota_check, dsl_dataset_set_quota_sync, - ds, "a, 0); - } dsl_dataset_rele(ds, FTAG); return (err); } @@ -3318,9 +3313,10 @@ static int dsl_dataset_set_reservation_check(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - uint64_t *reservationp = arg2; - uint64_t new_reservation = *reservationp; + dsl_prop_setarg_t *psa = arg2; + uint64_t effective_value; uint64_t unique; + int err; if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_REFRESERVATION) @@ -3329,6 +3325,11 @@ dsl_dataset_set_reservation_check(void *arg1, void *arg2, dmu_tx_t *tx) if (dsl_dataset_is_snapshot(ds)) return (EINVAL); + if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0) + return (err); + + effective_value = psa->psa_effective_value; + /* * If we are doing the preliminary check in open context, the * space estimates may be inaccurate. @@ -3337,76 +3338,101 @@ dsl_dataset_set_reservation_check(void *arg1, void *arg2, dmu_tx_t *tx) return (0); mutex_enter(&ds->ds_lock); - unique = dsl_dataset_unique(ds); + if (!DS_UNIQUE_IS_ACCURATE(ds)) + dsl_dataset_recalc_head_uniq(ds); + unique = ds->ds_phys->ds_unique_bytes; mutex_exit(&ds->ds_lock); - if (MAX(unique, new_reservation) > MAX(unique, ds->ds_reserved)) { - uint64_t delta = MAX(unique, new_reservation) - + if (MAX(unique, effective_value) > MAX(unique, ds->ds_reserved)) { + uint64_t delta = MAX(unique, effective_value) - MAX(unique, ds->ds_reserved); if (delta > dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE)) return (ENOSPC); if (ds->ds_quota > 0 && - new_reservation > ds->ds_quota) + effective_value > ds->ds_quota) return (ENOSPC); } return (0); } -/* ARGSUSED */ static void -dsl_dataset_set_reservation_sync(void *arg1, void *arg2, cred_t *cr, - dmu_tx_t *tx) +dsl_dataset_set_reservation_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - uint64_t *reservationp = arg2; - uint64_t new_reservation = *reservationp; + dsl_prop_setarg_t *psa = arg2; + uint64_t effective_value = psa->psa_effective_value; uint64_t unique; int64_t delta; + dsl_prop_set_sync(ds, psa, tx); + DSL_PROP_CHECK_PREDICTION(ds->ds_dir, psa); + dmu_buf_will_dirty(ds->ds_dbuf, tx); mutex_enter(&ds->ds_dir->dd_lock); mutex_enter(&ds->ds_lock); - unique = dsl_dataset_unique(ds); - delta = MAX(0, (int64_t)(new_reservation - unique)) - + ASSERT(DS_UNIQUE_IS_ACCURATE(ds)); + unique = ds->ds_phys->ds_unique_bytes; + delta = MAX(0, (int64_t)(effective_value - unique)) - MAX(0, (int64_t)(ds->ds_reserved - unique)); - ds->ds_reserved = new_reservation; + ds->ds_reserved = effective_value; mutex_exit(&ds->ds_lock); dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, delta, 0, 0, tx); mutex_exit(&ds->ds_dir->dd_lock); - dsl_dir_prop_set_uint64_sync(ds->ds_dir, "refreservation", - new_reservation, cr, tx); - spa_history_internal_log(LOG_DS_REFRESERV, - ds->ds_dir->dd_pool->dp_spa, tx, cr, "%lld dataset = %llu", - (longlong_t)new_reservation, ds->ds_object); + spa_history_log_internal(LOG_DS_REFRESERV, + ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu", + (longlong_t)effective_value, ds->ds_object); } int -dsl_dataset_set_reservation(const char *dsname, uint64_t reservation) +dsl_dataset_set_reservation(const char *dsname, zprop_source_t source, + uint64_t reservation) { dsl_dataset_t *ds; + dsl_prop_setarg_t psa; int err; + dsl_prop_setarg_init_uint64(&psa, "refreservation", source, + &reservation); + err = dsl_dataset_hold(dsname, FTAG, &ds); if (err) return (err); err = dsl_sync_task_do(ds->ds_dir->dd_pool, dsl_dataset_set_reservation_check, - dsl_dataset_set_reservation_sync, ds, &reservation, 0); + dsl_dataset_set_reservation_sync, ds, &psa, 0); + dsl_dataset_rele(ds, FTAG); return (err); } +struct dsl_ds_holdarg { + dsl_sync_task_group_t *dstg; + char *htag; + char *snapname; + boolean_t recursive; + boolean_t gotone; + boolean_t temphold; + char failed[MAXPATHLEN]; +}; + +/* + * The max length of a temporary tag prefix is the number of hex digits + * required to express UINT64_MAX plus one for the hyphen. + */ +#define MAX_TAG_PREFIX_LEN 17 + static int dsl_dataset_user_hold_check(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - char *htag = arg2; + struct dsl_ds_holdarg *ha = arg2; + char *htag = ha->htag; objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; int error = 0; @@ -3416,9 +3442,6 @@ dsl_dataset_user_hold_check(void *arg1, void *arg2, dmu_tx_t *tx) if (!dsl_dataset_is_snapshot(ds)) return (EINVAL); - if (strlen(htag) >= ZAP_MAXNAMELEN) - return (ENAMETOOLONG); - /* tags must be unique */ mutex_enter(&ds->ds_lock); if (ds->ds_phys->ds_userrefs_obj) { @@ -3431,16 +3454,22 @@ dsl_dataset_user_hold_check(void *arg1, void *arg2, dmu_tx_t *tx) } mutex_exit(&ds->ds_lock); + if (error == 0 && ha->temphold && + strlen(htag) + MAX_TAG_PREFIX_LEN >= MAXNAMELEN) + error = E2BIG; + return (error); } static void -dsl_dataset_user_hold_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_user_hold_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - char *htag = arg2; - objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; - time_t now = gethrestime_sec(); + struct dsl_ds_holdarg *ha = arg2; + char *htag = ha->htag; + dsl_pool_t *dp = ds->ds_dir->dd_pool; + objset_t *mos = dp->dp_meta_objset; + uint64_t now = gethrestime_sec(); uint64_t zapobj; mutex_enter(&ds->ds_lock); @@ -3460,48 +3489,43 @@ dsl_dataset_user_hold_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) VERIFY(0 == zap_add(mos, zapobj, htag, 8, 1, &now, tx)); - spa_history_internal_log(LOG_DS_USER_HOLD, - ds->ds_dir->dd_pool->dp_spa, tx, cr, "<%s> dataset = %llu", - htag, ds->ds_object); -} + if (ha->temphold) { + VERIFY(0 == dsl_pool_user_hold(dp, ds->ds_object, + htag, &now, tx)); + } -struct dsl_ds_holdarg { - dsl_sync_task_group_t *dstg; - char *htag; - char *snapname; - boolean_t recursive; - char failed[MAXPATHLEN]; -}; + spa_history_log_internal(LOG_DS_USER_HOLD, + dp->dp_spa, tx, "<%s> temp = %d dataset = %llu", htag, + (int)ha->temphold, ds->ds_object); +} static int -dsl_dataset_user_hold_one(char *dsname, void *arg) +dsl_dataset_user_hold_one(const char *dsname, void *arg) { struct dsl_ds_holdarg *ha = arg; dsl_dataset_t *ds; int error; char *name; - size_t buflen; /* alloc a buffer to hold dsname@snapname plus terminating NULL */ - buflen = strlen(dsname) + strlen(ha->snapname) + 2; - name = kmem_alloc(buflen, KM_SLEEP); - (void) snprintf(name, buflen, "%s@%s", dsname, ha->snapname); + name = kmem_asprintf("%s@%s", dsname, ha->snapname); error = dsl_dataset_hold(name, ha->dstg, &ds); - kmem_free(name, buflen); + strfree(name); if (error == 0) { + ha->gotone = B_TRUE; dsl_sync_task_create(ha->dstg, dsl_dataset_user_hold_check, - dsl_dataset_user_hold_sync, ds, ha->htag, 0); + dsl_dataset_user_hold_sync, ds, ha, 0); } else if (error == ENOENT && ha->recursive) { error = 0; } else { - (void) strcpy(ha->failed, dsname); + (void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); } return (error); } int dsl_dataset_user_hold(char *dsname, char *snapname, char *htag, - boolean_t recursive) + boolean_t recursive, boolean_t temphold) { struct dsl_ds_holdarg *ha; dsl_sync_task_t *dst; @@ -3522,6 +3546,7 @@ dsl_dataset_user_hold(char *dsname, char *snapname, char *htag, ha->htag = htag; ha->snapname = snapname; ha->recursive = recursive; + ha->temphold = temphold; if (recursive) { error = dmu_objset_find(dsname, dsl_dataset_user_hold_one, ha, DS_FIND_CHILDREN); @@ -3542,8 +3567,11 @@ dsl_dataset_user_hold(char *dsname, char *snapname, char *htag, dsl_dataset_rele(ds, ha->dstg); } + if (error == 0 && recursive && !ha->gotone) + error = ENOENT; + if (error) - (void) strcpy(dsname, ha->failed); + (void) strlcpy(dsname, ha->failed, sizeof (ha->failed)); dsl_sync_task_group_destroy(ha->dstg); kmem_free(ha, sizeof (struct dsl_ds_holdarg)); @@ -3618,10 +3646,6 @@ dsl_dataset_user_release_check(void *arg1, void *tag, dmu_tx_t *tx) */ if (!ra->own) return (EBUSY); - if (ds->ds_user_ptr) { - ds->ds_user_evict_func(ds, ds->ds_user_ptr); - ds->ds_user_ptr = NULL; - } } dsda.ds = ds; dsda.releasing = B_TRUE; @@ -3632,20 +3656,28 @@ dsl_dataset_user_release_check(void *arg1, void *tag, dmu_tx_t *tx) } static void -dsl_dataset_user_release_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) +dsl_dataset_user_release_sync(void *arg1, void *tag, dmu_tx_t *tx) { struct dsl_ds_releasearg *ra = arg1; dsl_dataset_t *ds = ra->ds; - spa_t *spa = ds->ds_dir->dd_pool->dp_spa; - objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; + dsl_pool_t *dp = ds->ds_dir->dd_pool; + objset_t *mos = dp->dp_meta_objset; uint64_t zapobj; uint64_t dsobj = ds->ds_object; uint64_t refs; + int error; + + if (ds->ds_objset) { + dmu_objset_evict(ds->ds_objset); + ds->ds_objset = NULL; + } mutex_enter(&ds->ds_lock); ds->ds_userrefs--; refs = ds->ds_userrefs; mutex_exit(&ds->ds_lock); + error = dsl_pool_user_release(dp, ds->ds_object, ra->htag, tx); + VERIFY(error == 0 || error == ENOENT); zapobj = ds->ds_phys->ds_userrefs_obj; VERIFY(0 == zap_remove(mos, zapobj, ra->htag, tx)); if (ds->ds_userrefs == 0 && ds->ds_phys->ds_num_children == 1 && @@ -3656,16 +3688,16 @@ dsl_dataset_user_release_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) dsda.ds = ds; dsda.releasing = B_TRUE; /* We already did the destroy_check */ - dsl_dataset_destroy_sync(&dsda, tag, cr, tx); + dsl_dataset_destroy_sync(&dsda, tag, tx); } - spa_history_internal_log(LOG_DS_USER_RELEASE, - spa, tx, cr, "<%s> %lld dataset = %llu", + spa_history_log_internal(LOG_DS_USER_RELEASE, + dp->dp_spa, tx, "<%s> %lld dataset = %llu", ra->htag, (longlong_t)refs, dsobj); } static int -dsl_dataset_user_release_one(char *dsname, void *arg) +dsl_dataset_user_release_one(const char *dsname, void *arg) { struct dsl_ds_holdarg *ha = arg; struct dsl_ds_releasearg *ra; @@ -3673,25 +3705,21 @@ dsl_dataset_user_release_one(char *dsname, void *arg) int error; void *dtag = ha->dstg; char *name; - size_t buflen; boolean_t own = B_FALSE; boolean_t might_destroy; - if (strlen(ha->htag) >= ZAP_MAXNAMELEN) - return (ENAMETOOLONG); - /* alloc a buffer to hold dsname@snapname, plus the terminating NULL */ - buflen = strlen(dsname) + strlen(ha->snapname) + 2; - name = kmem_alloc(buflen, KM_SLEEP); - (void) snprintf(name, buflen, "%s@%s", dsname, ha->snapname); + name = kmem_asprintf("%s@%s", dsname, ha->snapname); error = dsl_dataset_hold(name, dtag, &ds); - kmem_free(name, buflen); + strfree(name); if (error == ENOENT && ha->recursive) return (0); - (void) strcpy(ha->failed, dsname); + (void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); if (error) return (error); + ha->gotone = B_TRUE; + ASSERT(dsl_dataset_is_snapshot(ds)); error = dsl_dataset_release_might_destroy(ds, ha->htag, &might_destroy); @@ -3702,19 +3730,15 @@ dsl_dataset_user_release_one(char *dsname, void *arg) if (might_destroy) { #ifdef _KERNEL + name = kmem_asprintf("%s@%s", dsname, ha->snapname); error = zfs_unmount_snap(name, NULL); - if (error) { - dsl_dataset_rele(ds, dtag); - return (error); - } - error = dsl_dataset_zvol_cleanup(ds, name); + strfree(name); if (error) { dsl_dataset_rele(ds, dtag); return (error); } #endif - if (!dsl_dataset_tryown(ds, - DS_MODE_READONLY | DS_MODE_INCONSISTENT, dtag)) { + if (!dsl_dataset_tryown(ds, B_TRUE, dtag)) { dsl_dataset_rele(ds, dtag); return (EBUSY); } else { @@ -3742,6 +3766,7 @@ dsl_dataset_user_release(char *dsname, char *snapname, char *htag, spa_t *spa; int error; +top: ha = kmem_zalloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP); (void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); @@ -3781,15 +3806,58 @@ dsl_dataset_user_release(char *dsname, char *snapname, char *htag, kmem_free(ra, sizeof (struct dsl_ds_releasearg)); } - if (error) - (void) strcpy(dsname, ha->failed); + if (error == 0 && recursive && !ha->gotone) + error = ENOENT; + + if (error && error != EBUSY) + (void) strlcpy(dsname, ha->failed, sizeof (ha->failed)); dsl_sync_task_group_destroy(ha->dstg); kmem_free(ha, sizeof (struct dsl_ds_holdarg)); spa_close(spa, FTAG); + + /* + * We can get EBUSY if we were racing with deferred destroy and + * dsl_dataset_user_release_check() hadn't done the necessary + * open context setup. We can also get EBUSY if we're racing + * with destroy and that thread is the ds_owner. Either way + * the busy condition should be transient, and we should retry + * the release operation. + */ + if (error == EBUSY) + goto top; + return (error); } +/* + * Called at spa_load time to release a stale temporary user hold. + */ +int +dsl_dataset_user_release_tmp(dsl_pool_t *dp, uint64_t dsobj, char *htag) +{ + dsl_dataset_t *ds; + char *snap; + char *name; + int namelen; + int error; + + rw_enter(&dp->dp_config_rwlock, RW_READER); + error = dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds); + rw_exit(&dp->dp_config_rwlock); + if (error) + return (error); + namelen = dsl_dataset_namelen(ds)+1; + name = kmem_alloc(namelen, KM_SLEEP); + dsl_dataset_name(ds, name); + dsl_dataset_rele(ds, FTAG); + + snap = strchr(name, '@'); + *snap = '\0'; + ++snap; + return (dsl_dataset_user_release(name, snap, htag, B_FALSE)); +} + int dsl_dataset_get_holds(const char *dsname, nvlist_t **nvp) { @@ -3819,3 +3887,24 @@ dsl_dataset_get_holds(const char *dsname, nvlist_t **nvp) dsl_dataset_rele(ds, FTAG); return (0); } + +/* + * Note, this fuction is used as the callback for dmu_objset_find(). We + * always return 0 so that we will continue to find and process + * inconsistent datasets, even if we encounter an error trying to + * process one of them. + */ +/* ARGSUSED */ +int +dsl_destroy_inconsistent(const char *dsname, void *arg) +{ + dsl_dataset_t *ds; + + if (dsl_dataset_own(dsname, B_TRUE, FTAG, &ds) == 0) { + if (DS_IS_INCONSISTENT(ds)) + (void) dsl_dataset_destroy(ds, FTAG, B_FALSE); + else + dsl_dataset_disown(ds, FTAG); + } + return (0); +} diff --git a/module/zfs/dsl_deadlist.c b/module/zfs/dsl_deadlist.c new file mode 100644 index 000000000..064f8aceb --- /dev/null +++ b/module/zfs/dsl_deadlist.c @@ -0,0 +1,474 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/dsl_dataset.h> +#include <sys/dmu.h> +#include <sys/refcount.h> +#include <sys/zap.h> +#include <sys/zfs_context.h> +#include <sys/dsl_pool.h> + +static int +dsl_deadlist_compare(const void *arg1, const void *arg2) +{ + const dsl_deadlist_entry_t *dle1 = arg1; + const dsl_deadlist_entry_t *dle2 = arg2; + + if (dle1->dle_mintxg < dle2->dle_mintxg) + return (-1); + else if (dle1->dle_mintxg > dle2->dle_mintxg) + return (+1); + else + return (0); +} + +static void +dsl_deadlist_load_tree(dsl_deadlist_t *dl) +{ + zap_cursor_t zc; + zap_attribute_t za; + + ASSERT(!dl->dl_oldfmt); + if (dl->dl_havetree) + return; + + avl_create(&dl->dl_tree, dsl_deadlist_compare, + sizeof (dsl_deadlist_entry_t), + offsetof(dsl_deadlist_entry_t, dle_node)); + for (zap_cursor_init(&zc, dl->dl_os, dl->dl_object); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) { + dsl_deadlist_entry_t *dle = kmem_alloc(sizeof (*dle), KM_SLEEP); + dle->dle_mintxg = strtonum(za.za_name, NULL); + VERIFY3U(0, ==, bpobj_open(&dle->dle_bpobj, dl->dl_os, + za.za_first_integer)); + avl_add(&dl->dl_tree, dle); + } + zap_cursor_fini(&zc); + dl->dl_havetree = B_TRUE; +} + +void +dsl_deadlist_open(dsl_deadlist_t *dl, objset_t *os, uint64_t object) +{ + dmu_object_info_t doi; + + mutex_init(&dl->dl_lock, NULL, MUTEX_DEFAULT, NULL); + dl->dl_os = os; + dl->dl_object = object; + VERIFY3U(0, ==, dmu_bonus_hold(os, object, dl, &dl->dl_dbuf)); + dmu_object_info_from_db(dl->dl_dbuf, &doi); + if (doi.doi_type == DMU_OT_BPOBJ) { + dmu_buf_rele(dl->dl_dbuf, dl); + dl->dl_dbuf = NULL; + dl->dl_oldfmt = B_TRUE; + VERIFY3U(0, ==, bpobj_open(&dl->dl_bpobj, os, object)); + return; + } + + dl->dl_oldfmt = B_FALSE; + dl->dl_phys = dl->dl_dbuf->db_data; + dl->dl_havetree = B_FALSE; +} + +void +dsl_deadlist_close(dsl_deadlist_t *dl) +{ + void *cookie = NULL; + dsl_deadlist_entry_t *dle; + + if (dl->dl_oldfmt) { + dl->dl_oldfmt = B_FALSE; + bpobj_close(&dl->dl_bpobj); + return; + } + + if (dl->dl_havetree) { + while ((dle = avl_destroy_nodes(&dl->dl_tree, &cookie)) + != NULL) { + bpobj_close(&dle->dle_bpobj); + kmem_free(dle, sizeof (*dle)); + } + avl_destroy(&dl->dl_tree); + } + dmu_buf_rele(dl->dl_dbuf, dl); + mutex_destroy(&dl->dl_lock); + dl->dl_dbuf = NULL; + dl->dl_phys = NULL; +} + +uint64_t +dsl_deadlist_alloc(objset_t *os, dmu_tx_t *tx) +{ + if (spa_version(dmu_objset_spa(os)) < SPA_VERSION_DEADLISTS) + return (bpobj_alloc(os, SPA_MAXBLOCKSIZE, tx)); + return (zap_create(os, DMU_OT_DEADLIST, DMU_OT_DEADLIST_HDR, + sizeof (dsl_deadlist_phys_t), tx)); +} + +void +dsl_deadlist_free(objset_t *os, uint64_t dlobj, dmu_tx_t *tx) +{ + dmu_object_info_t doi; + zap_cursor_t zc; + zap_attribute_t za; + + VERIFY3U(0, ==, dmu_object_info(os, dlobj, &doi)); + if (doi.doi_type == DMU_OT_BPOBJ) { + bpobj_free(os, dlobj, tx); + return; + } + + for (zap_cursor_init(&zc, os, dlobj); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) + bpobj_free(os, za.za_first_integer, tx); + zap_cursor_fini(&zc); + VERIFY3U(0, ==, dmu_object_free(os, dlobj, tx)); +} + +void +dsl_deadlist_insert(dsl_deadlist_t *dl, const blkptr_t *bp, dmu_tx_t *tx) +{ + dsl_deadlist_entry_t dle_tofind; + dsl_deadlist_entry_t *dle; + avl_index_t where; + + if (dl->dl_oldfmt) { + bpobj_enqueue(&dl->dl_bpobj, bp, tx); + return; + } + + dsl_deadlist_load_tree(dl); + + dmu_buf_will_dirty(dl->dl_dbuf, tx); + mutex_enter(&dl->dl_lock); + dl->dl_phys->dl_used += + bp_get_dsize_sync(dmu_objset_spa(dl->dl_os), bp); + dl->dl_phys->dl_comp += BP_GET_PSIZE(bp); + dl->dl_phys->dl_uncomp += BP_GET_UCSIZE(bp); + mutex_exit(&dl->dl_lock); + + dle_tofind.dle_mintxg = bp->blk_birth; + dle = avl_find(&dl->dl_tree, &dle_tofind, &where); + if (dle == NULL) + dle = avl_nearest(&dl->dl_tree, where, AVL_BEFORE); + else + dle = AVL_PREV(&dl->dl_tree, dle); + bpobj_enqueue(&dle->dle_bpobj, bp, tx); +} + +/* + * Insert new key in deadlist, which must be > all current entries. + * mintxg is not inclusive. + */ +void +dsl_deadlist_add_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx) +{ + uint64_t obj; + dsl_deadlist_entry_t *dle; + + if (dl->dl_oldfmt) + return; + + dsl_deadlist_load_tree(dl); + + dle = kmem_alloc(sizeof (*dle), KM_SLEEP); + dle->dle_mintxg = mintxg; + obj = bpobj_alloc(dl->dl_os, SPA_MAXBLOCKSIZE, tx); + VERIFY3U(0, ==, bpobj_open(&dle->dle_bpobj, dl->dl_os, obj)); + avl_add(&dl->dl_tree, dle); + + VERIFY3U(0, ==, zap_add_int_key(dl->dl_os, dl->dl_object, + mintxg, obj, tx)); +} + +/* + * Remove this key, merging its entries into the previous key. + */ +void +dsl_deadlist_remove_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx) +{ + dsl_deadlist_entry_t dle_tofind; + dsl_deadlist_entry_t *dle, *dle_prev; + + if (dl->dl_oldfmt) + return; + + dsl_deadlist_load_tree(dl); + + dle_tofind.dle_mintxg = mintxg; + dle = avl_find(&dl->dl_tree, &dle_tofind, NULL); + dle_prev = AVL_PREV(&dl->dl_tree, dle); + + bpobj_enqueue_subobj(&dle_prev->dle_bpobj, + dle->dle_bpobj.bpo_object, tx); + + avl_remove(&dl->dl_tree, dle); + bpobj_close(&dle->dle_bpobj); + kmem_free(dle, sizeof (*dle)); + + VERIFY3U(0, ==, zap_remove_int(dl->dl_os, dl->dl_object, mintxg, tx)); +} + +/* + * Walk ds's snapshots to regenerate generate ZAP & AVL. + */ +static void +dsl_deadlist_regenerate(objset_t *os, uint64_t dlobj, + uint64_t mrs_obj, dmu_tx_t *tx) +{ + dsl_deadlist_t dl; + dsl_pool_t *dp = dmu_objset_pool(os); + + dsl_deadlist_open(&dl, os, dlobj); + if (dl.dl_oldfmt) { + dsl_deadlist_close(&dl); + return; + } + + while (mrs_obj != 0) { + dsl_dataset_t *ds; + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, mrs_obj, FTAG, &ds)); + dsl_deadlist_add_key(&dl, ds->ds_phys->ds_prev_snap_txg, tx); + mrs_obj = ds->ds_phys->ds_prev_snap_obj; + dsl_dataset_rele(ds, FTAG); + } + dsl_deadlist_close(&dl); +} + +uint64_t +dsl_deadlist_clone(dsl_deadlist_t *dl, uint64_t maxtxg, + uint64_t mrs_obj, dmu_tx_t *tx) +{ + dsl_deadlist_entry_t *dle; + uint64_t newobj; + + newobj = dsl_deadlist_alloc(dl->dl_os, tx); + + if (dl->dl_oldfmt) { + dsl_deadlist_regenerate(dl->dl_os, newobj, mrs_obj, tx); + return (newobj); + } + + dsl_deadlist_load_tree(dl); + + for (dle = avl_first(&dl->dl_tree); dle; + dle = AVL_NEXT(&dl->dl_tree, dle)) { + uint64_t obj; + + if (dle->dle_mintxg >= maxtxg) + break; + + obj = bpobj_alloc(dl->dl_os, SPA_MAXBLOCKSIZE, tx); + VERIFY3U(0, ==, zap_add_int_key(dl->dl_os, newobj, + dle->dle_mintxg, obj, tx)); + } + return (newobj); +} + +void +dsl_deadlist_space(dsl_deadlist_t *dl, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp) +{ + if (dl->dl_oldfmt) { + VERIFY3U(0, ==, bpobj_space(&dl->dl_bpobj, + usedp, compp, uncompp)); + return; + } + + mutex_enter(&dl->dl_lock); + *usedp = dl->dl_phys->dl_used; + *compp = dl->dl_phys->dl_comp; + *uncompp = dl->dl_phys->dl_uncomp; + mutex_exit(&dl->dl_lock); +} + +/* + * return space used in the range (mintxg, maxtxg]. + * Includes maxtxg, does not include mintxg. + * mintxg and maxtxg must both be keys in the deadlist (unless maxtxg is + * UINT64_MAX). + */ +void +dsl_deadlist_space_range(dsl_deadlist_t *dl, uint64_t mintxg, uint64_t maxtxg, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp) +{ + dsl_deadlist_entry_t dle_tofind; + dsl_deadlist_entry_t *dle; + avl_index_t where; + + if (dl->dl_oldfmt) { + VERIFY3U(0, ==, bpobj_space_range(&dl->dl_bpobj, + mintxg, maxtxg, usedp, compp, uncompp)); + return; + } + + dsl_deadlist_load_tree(dl); + *usedp = *compp = *uncompp = 0; + + dle_tofind.dle_mintxg = mintxg; + dle = avl_find(&dl->dl_tree, &dle_tofind, &where); + /* + * If we don't find this mintxg, there shouldn't be anything + * after it either. + */ + ASSERT(dle != NULL || + avl_nearest(&dl->dl_tree, where, AVL_AFTER) == NULL); + for (; dle && dle->dle_mintxg < maxtxg; + dle = AVL_NEXT(&dl->dl_tree, dle)) { + uint64_t used, comp, uncomp; + + VERIFY3U(0, ==, bpobj_space(&dle->dle_bpobj, + &used, &comp, &uncomp)); + + *usedp += used; + *compp += comp; + *uncompp += uncomp; + } +} + +static void +dsl_deadlist_insert_bpobj(dsl_deadlist_t *dl, uint64_t obj, uint64_t birth, + dmu_tx_t *tx) +{ + dsl_deadlist_entry_t dle_tofind; + dsl_deadlist_entry_t *dle; + avl_index_t where; + uint64_t used, comp, uncomp; + bpobj_t bpo; + + VERIFY3U(0, ==, bpobj_open(&bpo, dl->dl_os, obj)); + VERIFY3U(0, ==, bpobj_space(&bpo, &used, &comp, &uncomp)); + bpobj_close(&bpo); + + dsl_deadlist_load_tree(dl); + + dmu_buf_will_dirty(dl->dl_dbuf, tx); + mutex_enter(&dl->dl_lock); + dl->dl_phys->dl_used += used; + dl->dl_phys->dl_comp += comp; + dl->dl_phys->dl_uncomp += uncomp; + mutex_exit(&dl->dl_lock); + + dle_tofind.dle_mintxg = birth; + dle = avl_find(&dl->dl_tree, &dle_tofind, &where); + if (dle == NULL) + dle = avl_nearest(&dl->dl_tree, where, AVL_BEFORE); + bpobj_enqueue_subobj(&dle->dle_bpobj, obj, tx); +} + +static int +dsl_deadlist_insert_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + dsl_deadlist_t *dl = arg; + dsl_deadlist_insert(dl, bp, tx); + return (0); +} + +/* + * Merge the deadlist pointed to by 'obj' into dl. obj will be left as + * an empty deadlist. + */ +void +dsl_deadlist_merge(dsl_deadlist_t *dl, uint64_t obj, dmu_tx_t *tx) +{ + zap_cursor_t zc; + zap_attribute_t za; + dmu_buf_t *bonus; + dsl_deadlist_phys_t *dlp; + dmu_object_info_t doi; + + VERIFY3U(0, ==, dmu_object_info(dl->dl_os, obj, &doi)); + if (doi.doi_type == DMU_OT_BPOBJ) { + bpobj_t bpo; + VERIFY3U(0, ==, bpobj_open(&bpo, dl->dl_os, obj)); + VERIFY3U(0, ==, bpobj_iterate(&bpo, + dsl_deadlist_insert_cb, dl, tx)); + bpobj_close(&bpo); + return; + } + + for (zap_cursor_init(&zc, dl->dl_os, obj); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) { + uint64_t mintxg = strtonum(za.za_name, NULL); + dsl_deadlist_insert_bpobj(dl, za.za_first_integer, mintxg, tx); + VERIFY3U(0, ==, zap_remove_int(dl->dl_os, obj, mintxg, tx)); + } + zap_cursor_fini(&zc); + + VERIFY3U(0, ==, dmu_bonus_hold(dl->dl_os, obj, FTAG, &bonus)); + dlp = bonus->db_data; + dmu_buf_will_dirty(bonus, tx); + bzero(dlp, sizeof (*dlp)); + dmu_buf_rele(bonus, FTAG); +} + +/* + * Remove entries on dl that are >= mintxg, and put them on the bpobj. + */ +void +dsl_deadlist_move_bpobj(dsl_deadlist_t *dl, bpobj_t *bpo, uint64_t mintxg, + dmu_tx_t *tx) +{ + dsl_deadlist_entry_t dle_tofind; + dsl_deadlist_entry_t *dle; + avl_index_t where; + + ASSERT(!dl->dl_oldfmt); + dmu_buf_will_dirty(dl->dl_dbuf, tx); + dsl_deadlist_load_tree(dl); + + dle_tofind.dle_mintxg = mintxg; + dle = avl_find(&dl->dl_tree, &dle_tofind, &where); + if (dle == NULL) + dle = avl_nearest(&dl->dl_tree, where, AVL_AFTER); + while (dle) { + uint64_t used, comp, uncomp; + dsl_deadlist_entry_t *dle_next; + + bpobj_enqueue_subobj(bpo, dle->dle_bpobj.bpo_object, tx); + + VERIFY3U(0, ==, bpobj_space(&dle->dle_bpobj, + &used, &comp, &uncomp)); + mutex_enter(&dl->dl_lock); + ASSERT3U(dl->dl_phys->dl_used, >=, used); + ASSERT3U(dl->dl_phys->dl_comp, >=, comp); + ASSERT3U(dl->dl_phys->dl_uncomp, >=, uncomp); + dl->dl_phys->dl_used -= used; + dl->dl_phys->dl_comp -= comp; + dl->dl_phys->dl_uncomp -= uncomp; + mutex_exit(&dl->dl_lock); + + VERIFY3U(0, ==, zap_remove_int(dl->dl_os, dl->dl_object, + dle->dle_mintxg, tx)); + + dle_next = AVL_NEXT(&dl->dl_tree, dle); + avl_remove(&dl->dl_tree, dle); + bpobj_close(&dle->dle_bpobj); + kmem_free(dle, sizeof (*dle)); + dle = dle_next; + } +} diff --git a/module/zfs/dsl_deleg.c b/module/zfs/dsl_deleg.c index 5d76ff5f9..85490c8d5 100644 --- a/module/zfs/dsl_deleg.c +++ b/module/zfs/dsl_deleg.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -75,8 +74,6 @@ #include <sys/dsl_synctask.h> #include <sys/dsl_deleg.h> #include <sys/spa.h> -#include <sys/spa_impl.h> -#include <sys/zio_checksum.h> /* for the default checksum value */ #include <sys/zap.h> #include <sys/fs/zfs.h> #include <sys/cred.h> @@ -150,7 +147,7 @@ dsl_deleg_can_unallow(char *ddname, nvlist_t *nvp, cred_t *cr) } static void -dsl_deleg_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_deleg_set_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dir_t *dd = arg1; nvlist_t *nvp = arg2; @@ -185,8 +182,8 @@ dsl_deleg_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) VERIFY(zap_update(mos, jumpobj, perm, 8, 1, &n, tx) == 0); - spa_history_internal_log(LOG_DS_PERM_UPDATE, - dd->dd_pool->dp_spa, tx, cr, + spa_history_log_internal(LOG_DS_PERM_UPDATE, + dd->dd_pool->dp_spa, tx, "%s %s dataset = %llu", whokey, perm, dd->dd_phys->dd_head_dataset_obj); } @@ -194,7 +191,7 @@ dsl_deleg_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) } static void -dsl_deleg_unset_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_deleg_unset_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dir_t *dd = arg1; nvlist_t *nvp = arg2; @@ -217,8 +214,8 @@ dsl_deleg_unset_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) (void) zap_remove(mos, zapobj, whokey, tx); VERIFY(0 == zap_destroy(mos, jumpobj, tx)); } - spa_history_internal_log(LOG_DS_PERM_WHO_REMOVE, - dd->dd_pool->dp_spa, tx, cr, + spa_history_log_internal(LOG_DS_PERM_WHO_REMOVE, + dd->dd_pool->dp_spa, tx, "%s dataset = %llu", whokey, dd->dd_phys->dd_head_dataset_obj); continue; @@ -238,8 +235,8 @@ dsl_deleg_unset_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) VERIFY(0 == zap_destroy(mos, jumpobj, tx)); } - spa_history_internal_log(LOG_DS_PERM_REMOVE, - dd->dd_pool->dp_spa, tx, cr, + spa_history_log_internal(LOG_DS_PERM_REMOVE, + dd->dd_pool->dp_spa, tx, "%s %s dataset = %llu", whokey, perm, dd->dd_phys->dd_head_dataset_obj); } @@ -589,7 +586,7 @@ dsl_deleg_access(const char *dsname, const char *perm, cred_t *cr) if (dsl_prop_get_dd(dd, zfs_prop_to_name(ZFS_PROP_ZONED), - 8, 1, &zoned, NULL) != 0) + 8, 1, &zoned, NULL, B_FALSE) != 0) break; if (!zoned) break; @@ -739,5 +736,5 @@ dsl_deleg_destroy(objset_t *mos, uint64_t zapobj, dmu_tx_t *tx) boolean_t dsl_delegation_on(objset_t *os) { - return (os->os->os_spa->spa_delegation); + return (!!spa_delegation(os->os_spa)); } diff --git a/module/zfs/dsl_dir.c b/module/zfs/dsl_dir.c index 2f312ae34..1cd49c827 100644 --- a/module/zfs/dsl_dir.c +++ b/module/zfs/dsl_dir.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/dmu.h> @@ -32,6 +31,7 @@ #include <sys/dsl_synctask.h> #include <sys/dsl_deleg.h> #include <sys/spa.h> +#include <sys/metaslab.h> #include <sys/zap.h> #include <sys/zio.h> #include <sys/arc.h> @@ -39,8 +39,7 @@ #include "zfs_namecheck.h" static uint64_t dsl_dir_space_towrite(dsl_dir_t *dd); -static void dsl_dir_set_reservation_sync(void *arg1, void *arg2, - cred_t *cr, dmu_tx_t *tx); +static void dsl_dir_set_reservation_sync(void *arg1, void *arg2, dmu_tx_t *tx); /* ARGSUSED */ @@ -63,8 +62,8 @@ dsl_dir_evict(dmu_buf_t *db, void *arg) spa_close(dd->dd_pool->dp_spa, dd); /* - * The props callback list should be empty since they hold the - * dir open. + * The props callback list should have been cleaned up by + * objset_evict(). */ list_destroy(&dd->dd_prop_cbs); mutex_destroy(&dd->dd_lock); @@ -107,6 +106,8 @@ dsl_dir_open_obj(dsl_pool_t *dp, uint64_t ddobj, list_create(&dd->dd_prop_cbs, sizeof (dsl_prop_cb_record_t), offsetof(dsl_prop_cb_record_t, cbr_node)); + dsl_dir_snap_cmtime_update(dd); + if (dd->dd_phys->dd_parent_obj) { err = dsl_dir_open_obj(dp, dd->dd_phys->dd_parent_obj, NULL, dd, &dd->dd_parent); @@ -133,6 +134,25 @@ dsl_dir_open_obj(dsl_pool_t *dp, uint64_t ddobj, (void) strcpy(dd->dd_myname, spa_name(dp->dp_spa)); } + if (dsl_dir_is_clone(dd)) { + dmu_buf_t *origin_bonus; + dsl_dataset_phys_t *origin_phys; + + /* + * We can't open the origin dataset, because + * that would require opening this dsl_dir. + * Just look at its phys directly instead. + */ + err = dmu_bonus_hold(dp->dp_meta_objset, + dd->dd_phys->dd_origin_obj, FTAG, &origin_bonus); + if (err) + goto errout; + origin_phys = origin_bonus->db_data; + dd->dd_origin_txg = + origin_phys->ds_creation_txg; + dmu_buf_rele(origin_bonus, FTAG); + } + winner = dmu_buf_set_user_ie(dbuf, dd, &dd->dd_phys, dsl_dir_evict); if (winner) { @@ -392,7 +412,7 @@ dsl_dir_create_sync(dsl_pool_t *dp, dsl_dir_t *pds, const char *name, { objset_t *mos = dp->dp_meta_objset; uint64_t ddobj; - dsl_dir_phys_t *dsphys; + dsl_dir_phys_t *ddphys; dmu_buf_t *dbuf; ddobj = dmu_object_alloc(mos, DMU_OT_DSL_DIR, 0, @@ -407,17 +427,17 @@ dsl_dir_create_sync(dsl_pool_t *dp, dsl_dir_t *pds, const char *name, } VERIFY(0 == dmu_bonus_hold(mos, ddobj, FTAG, &dbuf)); dmu_buf_will_dirty(dbuf, tx); - dsphys = dbuf->db_data; + ddphys = dbuf->db_data; - dsphys->dd_creation_time = gethrestime_sec(); + ddphys->dd_creation_time = gethrestime_sec(); if (pds) - dsphys->dd_parent_obj = pds->dd_object; - dsphys->dd_props_zapobj = zap_create(mos, + ddphys->dd_parent_obj = pds->dd_object; + ddphys->dd_props_zapobj = zap_create(mos, DMU_OT_DSL_PROPS, DMU_OT_NONE, 0, tx); - dsphys->dd_child_dir_zapobj = zap_create(mos, + ddphys->dd_child_dir_zapobj = zap_create(mos, DMU_OT_DSL_DIR_CHILD_MAP, DMU_OT_NONE, 0, tx); if (spa_version(dp->dp_spa) >= SPA_VERSION_USED_BREAKDOWN) - dsphys->dd_flags |= DD_FLAG_USED_BREAKDOWN; + ddphys->dd_flags |= DD_FLAG_USED_BREAKDOWN; dmu_buf_rele(dbuf, FTAG); return (ddobj); @@ -427,7 +447,8 @@ dsl_dir_create_sync(dsl_pool_t *dp, dsl_dir_t *pds, const char *name, int dsl_dir_destroy_check(void *arg1, void *arg2, dmu_tx_t *tx) { - dsl_dir_t *dd = arg1; + dsl_dataset_t *ds = arg1; + dsl_dir_t *dd = ds->ds_dir; dsl_pool_t *dp = dd->dd_pool; objset_t *mos = dp->dp_meta_objset; int err; @@ -454,19 +475,27 @@ dsl_dir_destroy_check(void *arg1, void *arg2, dmu_tx_t *tx) } void -dsl_dir_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) +dsl_dir_destroy_sync(void *arg1, void *tag, dmu_tx_t *tx) { - dsl_dir_t *dd = arg1; + dsl_dataset_t *ds = arg1; + dsl_dir_t *dd = ds->ds_dir; objset_t *mos = dd->dd_pool->dp_meta_objset; - uint64_t val, obj; + dsl_prop_setarg_t psa; + uint64_t value = 0; + uint64_t obj; dd_used_t t; ASSERT(RW_WRITE_HELD(&dd->dd_pool->dp_config_rwlock)); ASSERT(dd->dd_phys->dd_head_dataset_obj == 0); /* Remove our reservation. */ - val = 0; - dsl_dir_set_reservation_sync(dd, &val, cr, tx); + dsl_prop_setarg_init_uint64(&psa, "reservation", + (ZPROP_SRC_NONE | ZPROP_SRC_LOCAL | ZPROP_SRC_RECEIVED), + &value); + psa.psa_effective_value = 0; /* predict default value */ + + dsl_dir_set_reservation_sync(ds, &psa, tx); + ASSERT3U(dd->dd_phys->dd_used_bytes, ==, 0); ASSERT3U(dd->dd_phys->dd_reserved, ==, 0); for (t = 0; t < DD_USED_NUM; t++) @@ -640,15 +669,6 @@ dsl_dir_space_available(dsl_dir_t *dd, if (used > quota) { /* over quota */ myspace = 0; - - /* - * While it's OK to be a little over quota, if - * we think we are using more space than there - * is in the pool (which is already 1.6% more than - * dsl_pool_adjustedsize()), something is very - * wrong. - */ - ASSERT3U(used, <=, spa_get_space(dd->dd_pool->dp_spa)); } else { /* * the lesser of the space provided by our parent and @@ -676,8 +696,9 @@ dsl_dir_tempreserve_impl(dsl_dir_t *dd, uint64_t asize, boolean_t netfree, { uint64_t txg = tx->tx_txg; uint64_t est_inflight, used_on_disk, quota, parent_rsrv; + uint64_t deferred = 0; struct tempreserve *tr; - int enospc = EDQUOT; + int retval = EDQUOT; int txgidx = txg & TXG_MASK; int i; uint64_t ref_rsrv = 0; @@ -703,7 +724,7 @@ dsl_dir_tempreserve_impl(dsl_dir_t *dd, uint64_t asize, boolean_t netfree, */ if (first && tx->tx_objset) { int error; - dsl_dataset_t *ds = tx->tx_objset->os->os_dsl_dataset; + dsl_dataset_t *ds = tx->tx_objset->os_dsl_dataset; error = dsl_dataset_check_quota(ds, checkrefquota, asize, est_inflight, &used_on_disk, &ref_rsrv); @@ -723,7 +744,8 @@ dsl_dir_tempreserve_impl(dsl_dir_t *dd, uint64_t asize, boolean_t netfree, quota = dd->dd_phys->dd_quota; /* - * Adjust the quota against the actual pool size at the root. + * Adjust the quota against the actual pool size at the root + * minus any outstanding deferred frees. * To ensure that it's possible to remove files from a full * pool without inducing transient overcommits, we throttle * netfree transactions against a quota that is slightly larger, @@ -732,10 +754,12 @@ dsl_dir_tempreserve_impl(dsl_dir_t *dd, uint64_t asize, boolean_t netfree, * removes to get through. */ if (dd->dd_parent == NULL) { + spa_t *spa = dd->dd_pool->dp_spa; uint64_t poolsize = dsl_pool_adjustedsize(dd->dd_pool, netfree); - if (poolsize < quota) { - quota = poolsize; - enospc = ENOSPC; + deferred = metaslab_class_get_deferred(spa_normal_class(spa)); + if (poolsize - deferred < quota) { + quota = poolsize - deferred; + retval = ENOSPC; } } @@ -745,15 +769,16 @@ dsl_dir_tempreserve_impl(dsl_dir_t *dd, uint64_t asize, boolean_t netfree, * on-disk is over quota and there are no pending changes (which * may free up space for us). */ - if (used_on_disk + est_inflight > quota) { - if (est_inflight > 0 || used_on_disk < quota) - enospc = ERESTART; + if (used_on_disk + est_inflight >= quota) { + if (est_inflight > 0 || used_on_disk < quota || + (retval == ENOSPC && used_on_disk < quota + deferred)) + retval = ERESTART; dprintf_dd(dd, "failing: used=%lluK inflight = %lluK " "quota=%lluK tr=%lluK err=%d\n", used_on_disk>>10, est_inflight>>10, - quota>>10, asize>>10, enospc); + quota>>10, asize>>10, retval); mutex_exit(&dd->dd_lock); - return (enospc); + return (retval); } /* We need to up our estimated delta before dropping dd_lock */ @@ -987,13 +1012,16 @@ dsl_dir_transfer_space(dsl_dir_t *dd, int64_t delta, static int dsl_dir_set_quota_check(void *arg1, void *arg2, dmu_tx_t *tx) { - dsl_dir_t *dd = arg1; - uint64_t *quotap = arg2; - uint64_t new_quota = *quotap; - int err = 0; + dsl_dataset_t *ds = arg1; + dsl_dir_t *dd = ds->ds_dir; + dsl_prop_setarg_t *psa = arg2; + int err; uint64_t towrite; - if (new_quota == 0) + if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0) + return (err); + + if (psa->psa_effective_value == 0) return (0); mutex_enter(&dd->dd_lock); @@ -1005,64 +1033,88 @@ dsl_dir_set_quota_check(void *arg1, void *arg2, dmu_tx_t *tx) */ towrite = dsl_dir_space_towrite(dd); if ((dmu_tx_is_syncing(tx) || towrite == 0) && - (new_quota < dd->dd_phys->dd_reserved || - new_quota < dd->dd_phys->dd_used_bytes + towrite)) { + (psa->psa_effective_value < dd->dd_phys->dd_reserved || + psa->psa_effective_value < dd->dd_phys->dd_used_bytes + towrite)) { err = ENOSPC; } mutex_exit(&dd->dd_lock); return (err); } -/* ARGSUSED */ +extern dsl_syncfunc_t dsl_prop_set_sync; + static void -dsl_dir_set_quota_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dir_set_quota_sync(void *arg1, void *arg2, dmu_tx_t *tx) { - dsl_dir_t *dd = arg1; - uint64_t *quotap = arg2; - uint64_t new_quota = *quotap; + dsl_dataset_t *ds = arg1; + dsl_dir_t *dd = ds->ds_dir; + dsl_prop_setarg_t *psa = arg2; + uint64_t effective_value = psa->psa_effective_value; + + dsl_prop_set_sync(ds, psa, tx); + DSL_PROP_CHECK_PREDICTION(dd, psa); dmu_buf_will_dirty(dd->dd_dbuf, tx); mutex_enter(&dd->dd_lock); - dd->dd_phys->dd_quota = new_quota; + dd->dd_phys->dd_quota = effective_value; mutex_exit(&dd->dd_lock); - spa_history_internal_log(LOG_DS_QUOTA, dd->dd_pool->dp_spa, - tx, cr, "%lld dataset = %llu ", - (longlong_t)new_quota, dd->dd_phys->dd_head_dataset_obj); + spa_history_log_internal(LOG_DS_QUOTA, dd->dd_pool->dp_spa, + tx, "%lld dataset = %llu ", + (longlong_t)effective_value, dd->dd_phys->dd_head_dataset_obj); } int -dsl_dir_set_quota(const char *ddname, uint64_t quota) +dsl_dir_set_quota(const char *ddname, zprop_source_t source, uint64_t quota) { dsl_dir_t *dd; + dsl_dataset_t *ds; + dsl_prop_setarg_t psa; int err; - err = dsl_dir_open(ddname, FTAG, &dd, NULL); + dsl_prop_setarg_init_uint64(&psa, "quota", source, "a); + + err = dsl_dataset_hold(ddname, FTAG, &ds); if (err) return (err); - if (quota != dd->dd_phys->dd_quota) { - /* - * If someone removes a file, then tries to set the quota, we - * want to make sure the file freeing takes effect. - */ - txg_wait_open(dd->dd_pool, 0); - - err = dsl_sync_task_do(dd->dd_pool, dsl_dir_set_quota_check, - dsl_dir_set_quota_sync, dd, "a, 0); + err = dsl_dir_open(ddname, FTAG, &dd, NULL); + if (err) { + dsl_dataset_rele(ds, FTAG); + return (err); } + + ASSERT(ds->ds_dir == dd); + + /* + * If someone removes a file, then tries to set the quota, we want to + * make sure the file freeing takes effect. + */ + txg_wait_open(dd->dd_pool, 0); + + err = dsl_sync_task_do(dd->dd_pool, dsl_dir_set_quota_check, + dsl_dir_set_quota_sync, ds, &psa, 0); + dsl_dir_close(dd, FTAG); + dsl_dataset_rele(ds, FTAG); return (err); } int dsl_dir_set_reservation_check(void *arg1, void *arg2, dmu_tx_t *tx) { - dsl_dir_t *dd = arg1; - uint64_t *reservationp = arg2; - uint64_t new_reservation = *reservationp; + dsl_dataset_t *ds = arg1; + dsl_dir_t *dd = ds->ds_dir; + dsl_prop_setarg_t *psa = arg2; + uint64_t effective_value; uint64_t used, avail; + int err; + + if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0) + return (err); + + effective_value = psa->psa_effective_value; /* * If we are doing the preliminary check in open context, the @@ -1082,37 +1134,40 @@ dsl_dir_set_reservation_check(void *arg1, void *arg2, dmu_tx_t *tx) avail = dsl_pool_adjustedsize(dd->dd_pool, B_FALSE) - used; } - if (MAX(used, new_reservation) > MAX(used, dd->dd_phys->dd_reserved)) { - uint64_t delta = MAX(used, new_reservation) - + if (MAX(used, effective_value) > MAX(used, dd->dd_phys->dd_reserved)) { + uint64_t delta = MAX(used, effective_value) - MAX(used, dd->dd_phys->dd_reserved); if (delta > avail) return (ENOSPC); if (dd->dd_phys->dd_quota > 0 && - new_reservation > dd->dd_phys->dd_quota) + effective_value > dd->dd_phys->dd_quota) return (ENOSPC); } return (0); } -/* ARGSUSED */ static void -dsl_dir_set_reservation_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dir_set_reservation_sync(void *arg1, void *arg2, dmu_tx_t *tx) { - dsl_dir_t *dd = arg1; - uint64_t *reservationp = arg2; - uint64_t new_reservation = *reservationp; + dsl_dataset_t *ds = arg1; + dsl_dir_t *dd = ds->ds_dir; + dsl_prop_setarg_t *psa = arg2; + uint64_t effective_value = psa->psa_effective_value; uint64_t used; int64_t delta; + dsl_prop_set_sync(ds, psa, tx); + DSL_PROP_CHECK_PREDICTION(dd, psa); + dmu_buf_will_dirty(dd->dd_dbuf, tx); mutex_enter(&dd->dd_lock); used = dd->dd_phys->dd_used_bytes; - delta = MAX(used, new_reservation) - + delta = MAX(used, effective_value) - MAX(used, dd->dd_phys->dd_reserved); - dd->dd_phys->dd_reserved = new_reservation; + dd->dd_phys->dd_reserved = effective_value; if (dd->dd_parent != NULL) { /* Roll up this additional usage into our ancestors */ @@ -1121,23 +1176,39 @@ dsl_dir_set_reservation_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) } mutex_exit(&dd->dd_lock); - spa_history_internal_log(LOG_DS_RESERVATION, dd->dd_pool->dp_spa, - tx, cr, "%lld dataset = %llu", - (longlong_t)new_reservation, dd->dd_phys->dd_head_dataset_obj); + spa_history_log_internal(LOG_DS_RESERVATION, dd->dd_pool->dp_spa, + tx, "%lld dataset = %llu", + (longlong_t)effective_value, dd->dd_phys->dd_head_dataset_obj); } int -dsl_dir_set_reservation(const char *ddname, uint64_t reservation) +dsl_dir_set_reservation(const char *ddname, zprop_source_t source, + uint64_t reservation) { dsl_dir_t *dd; + dsl_dataset_t *ds; + dsl_prop_setarg_t psa; int err; - err = dsl_dir_open(ddname, FTAG, &dd, NULL); + dsl_prop_setarg_init_uint64(&psa, "reservation", source, &reservation); + + err = dsl_dataset_hold(ddname, FTAG, &ds); if (err) return (err); + + err = dsl_dir_open(ddname, FTAG, &dd, NULL); + if (err) { + dsl_dataset_rele(ds, FTAG); + return (err); + } + + ASSERT(ds->ds_dir == dd); + err = dsl_sync_task_do(dd->dd_pool, dsl_dir_set_reservation_check, - dsl_dir_set_reservation_sync, dd, &reservation, 0); + dsl_dir_set_reservation_sync, ds, &psa, 0); + dsl_dir_close(dd, FTAG); + dsl_dataset_rele(ds, FTAG); return (err); } @@ -1175,7 +1246,6 @@ struct renamearg { const char *mynewname; }; -/*ARGSUSED*/ static int dsl_dir_rename_check(void *arg1, void *arg2, dmu_tx_t *tx) { @@ -1186,8 +1256,14 @@ dsl_dir_rename_check(void *arg1, void *arg2, dmu_tx_t *tx) int err; uint64_t val; - /* There should be 2 references: the open and the dirty */ - if (dmu_buf_refcount(dd->dd_dbuf) > 2) + /* + * There should only be one reference, from dmu_objset_rename(). + * Fleeting holds are also possible (eg, from "zfs list" getting + * stats), but any that are present in open context will likely + * be gone by syncing context, so only fail from syncing + * context. + */ + if (dmu_tx_is_syncing(tx) && dmu_buf_refcount(dd->dd_dbuf) > 1) return (EBUSY); /* check for existing name */ @@ -1216,7 +1292,7 @@ dsl_dir_rename_check(void *arg1, void *arg2, dmu_tx_t *tx) } static void -dsl_dir_rename_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_dir_rename_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dir_t *dd = arg1; struct renamearg *ra = arg2; @@ -1265,8 +1341,8 @@ dsl_dir_rename_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) dd->dd_myname, 8, 1, &dd->dd_object, tx); ASSERT3U(err, ==, 0); - spa_history_internal_log(LOG_DS_RENAME, dd->dd_pool->dp_spa, - tx, cr, "dataset = %llu", dd->dd_phys->dd_head_dataset_obj); + spa_history_log_internal(LOG_DS_RENAME, dd->dd_pool->dp_spa, + tx, "dataset = %llu", dd->dd_phys->dd_head_dataset_obj); } int @@ -1315,3 +1391,26 @@ dsl_dir_transfer_possible(dsl_dir_t *sdd, dsl_dir_t *tdd, uint64_t space) return (0); } + +timestruc_t +dsl_dir_snap_cmtime(dsl_dir_t *dd) +{ + timestruc_t t; + + mutex_enter(&dd->dd_lock); + t = dd->dd_snap_cmtime; + mutex_exit(&dd->dd_lock); + + return (t); +} + +void +dsl_dir_snap_cmtime_update(dsl_dir_t *dd) +{ + timestruc_t t; + + gethrestime(&t); + mutex_enter(&dd->dd_lock); + dd->dd_snap_cmtime = t; + mutex_exit(&dd->dd_lock); +} diff --git a/module/zfs/dsl_pool.c b/module/zfs/dsl_pool.c index 2c5dfca53..2cd21a102 100644 --- a/module/zfs/dsl_pool.c +++ b/module/zfs/dsl_pool.c @@ -19,14 +19,16 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/dsl_pool.h> #include <sys/dsl_dataset.h> +#include <sys/dsl_prop.h> #include <sys/dsl_dir.h> #include <sys/dsl_synctask.h> +#include <sys/dsl_scan.h> +#include <sys/dnode.h> #include <sys/dmu_tx.h> #include <sys/dmu_objset.h> #include <sys/arc.h> @@ -36,10 +38,11 @@ #include <sys/fs/zfs.h> #include <sys/zfs_znode.h> #include <sys/spa_impl.h> +#include <sys/dsl_deadlist.h> int zfs_no_write_throttle = 0; int zfs_write_limit_shift = 3; /* 1/8th of physical memory */ -int zfs_txg_synctime = 5; /* target secs to sync a txg */ +int zfs_txg_synctime_ms = 5000; /* target millisecs to sync a txg */ uint64_t zfs_write_limit_min = 32 << 20; /* min write limit is 32MB */ uint64_t zfs_write_limit_max = 0; /* max data payload per txg */ @@ -50,7 +53,7 @@ kmutex_t zfs_write_limit_lock; static pgcnt_t old_physmem = 0; -static int +int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **ddp) { uint64_t obj; @@ -88,7 +91,6 @@ dsl_pool_open_impl(spa_t *spa, uint64_t txg) offsetof(dsl_dataset_t, ds_synced_link)); mutex_init(&dp->dp_lock, NULL, MUTEX_DEFAULT, NULL); - mutex_init(&dp->dp_scrub_cancel_lock, NULL, MUTEX_DEFAULT, NULL); dp->dp_vnrele_taskq = taskq_create("zfs_vn_rele_taskq", 1, minclsyspri, 1, 4, 0); @@ -103,13 +105,13 @@ dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp) dsl_pool_t *dp = dsl_pool_open_impl(spa, txg); dsl_dir_t *dd; dsl_dataset_t *ds; - objset_impl_t *osi; + uint64_t obj; rw_enter(&dp->dp_config_rwlock, RW_WRITER); - err = dmu_objset_open_impl(spa, NULL, &dp->dp_meta_rootbp, &osi); + err = dmu_objset_open_impl(spa, NULL, &dp->dp_meta_rootbp, + &dp->dp_meta_objset); if (err) goto out; - dp->dp_meta_objset = &osi->os; err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ROOT_DATASET, sizeof (uint64_t), 1, @@ -143,53 +145,30 @@ dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp) goto out; } - /* get scrub status */ - err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_FUNC, sizeof (uint32_t), 1, - &dp->dp_scrub_func); - if (err == 0) { - err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_QUEUE, sizeof (uint64_t), 1, - &dp->dp_scrub_queue_obj); - if (err) - goto out; - err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_MIN_TXG, sizeof (uint64_t), 1, - &dp->dp_scrub_min_txg); - if (err) - goto out; - err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_MAX_TXG, sizeof (uint64_t), 1, - &dp->dp_scrub_max_txg); - if (err) - goto out; - err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_BOOKMARK, sizeof (uint64_t), 4, - &dp->dp_scrub_bookmark); + if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { + err = dsl_pool_open_special_dir(dp, FREE_DIR_NAME, + &dp->dp_free_dir); if (err) goto out; + err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_ERRORS, sizeof (uint64_t), 1, - &spa->spa_scrub_errors); + DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj); if (err) goto out; - if (spa_version(spa) < SPA_VERSION_DSL_SCRUB) { - /* - * A new-type scrub was in progress on an old - * pool. Restart from the beginning, since the - * old software may have changed the pool in the - * meantime. - */ - dsl_pool_scrub_restart(dp); - } - } else { - /* - * It's OK if there is no scrub in progress (and if - * there was an I/O error, ignore it). - */ - err = 0; + VERIFY3U(0, ==, bpobj_open(&dp->dp_free_bpobj, + dp->dp_meta_objset, obj)); } + err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + DMU_POOL_TMP_USERREFS, sizeof (uint64_t), 1, + &dp->dp_tmp_userrefs_obj); + if (err == ENOENT) + err = 0; + if (err) + goto out; + + err = dsl_scan_init(dp, txg); + out: rw_exit(&dp->dp_config_rwlock); if (err) @@ -214,22 +193,27 @@ dsl_pool_close(dsl_pool_t *dp) dsl_dataset_drop_ref(dp->dp_origin_snap, dp); if (dp->dp_mos_dir) dsl_dir_close(dp->dp_mos_dir, dp); + if (dp->dp_free_dir) + dsl_dir_close(dp->dp_free_dir, dp); if (dp->dp_root_dir) dsl_dir_close(dp->dp_root_dir, dp); + bpobj_close(&dp->dp_free_bpobj); + /* undo the dmu_objset_open_impl(mos) from dsl_pool_open() */ if (dp->dp_meta_objset) - dmu_objset_evict(NULL, dp->dp_meta_objset->os); + dmu_objset_evict(dp->dp_meta_objset); txg_list_destroy(&dp->dp_dirty_datasets); + txg_list_destroy(&dp->dp_sync_tasks); txg_list_destroy(&dp->dp_dirty_dirs); list_destroy(&dp->dp_synced_datasets); arc_flush(dp->dp_spa); txg_fini(dp); + dsl_scan_fini(dp); rw_destroy(&dp->dp_config_rwlock); mutex_destroy(&dp->dp_lock); - mutex_destroy(&dp->dp_scrub_cancel_lock); taskq_destroy(dp->dp_vnrele_taskq); if (dp->dp_blkstats) kmem_free(dp->dp_blkstats, sizeof (zfs_all_blkstats_t)); @@ -242,19 +226,22 @@ dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg) int err; dsl_pool_t *dp = dsl_pool_open_impl(spa, txg); dmu_tx_t *tx = dmu_tx_create_assigned(dp, txg); - objset_impl_t *osip; + objset_t *os; dsl_dataset_t *ds; - uint64_t dsobj; + uint64_t obj; /* create and open the MOS (meta-objset) */ - dp->dp_meta_objset = &dmu_objset_create_impl(spa, - NULL, &dp->dp_meta_rootbp, DMU_OST_META, tx)->os; + dp->dp_meta_objset = dmu_objset_create_impl(spa, + NULL, &dp->dp_meta_rootbp, DMU_OST_META, tx); /* create the pool directory */ err = zap_create_claim(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, DMU_OT_OBJECT_DIRECTORY, DMU_OT_NONE, 0, tx); ASSERT3U(err, ==, 0); + /* Initialize scan structures */ + VERIFY3U(0, ==, dsl_scan_init(dp, txg)); + /* create and open the root dir */ dp->dp_root_dir_obj = dsl_dir_create_sync(dp, NULL, NULL, tx); VERIFY(0 == dsl_dir_open_obj(dp, dp->dp_root_dir_obj, @@ -265,18 +252,33 @@ dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg) VERIFY(0 == dsl_pool_open_special_dir(dp, MOS_DIR_NAME, &dp->dp_mos_dir)); + if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { + /* create and open the free dir */ + (void) dsl_dir_create_sync(dp, dp->dp_root_dir, + FREE_DIR_NAME, tx); + VERIFY(0 == dsl_pool_open_special_dir(dp, + FREE_DIR_NAME, &dp->dp_free_dir)); + + /* create and open the free_bplist */ + obj = bpobj_alloc(dp->dp_meta_objset, SPA_MAXBLOCKSIZE, tx); + VERIFY(zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj, tx) == 0); + VERIFY3U(0, ==, bpobj_open(&dp->dp_free_bpobj, + dp->dp_meta_objset, obj)); + } + if (spa_version(spa) >= SPA_VERSION_DSL_SCRUB) dsl_pool_create_origin(dp, tx); /* create the root dataset */ - dsobj = dsl_dataset_create_sync_dd(dp->dp_root_dir, NULL, 0, tx); + obj = dsl_dataset_create_sync_dd(dp->dp_root_dir, NULL, 0, tx); /* create the root objset */ - VERIFY(0 == dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds)); - osip = dmu_objset_create_impl(dp->dp_spa, ds, + VERIFY(0 == dsl_dataset_hold_obj(dp, obj, FTAG, &ds)); + os = dmu_objset_create_impl(dp->dp_spa, ds, dsl_dataset_get_blkptr(ds), DMU_OST_ZFS, tx); #ifdef _KERNEL - zfs_create_fs(&osip->os, kcred, zplprops, tx); + zfs_create_fs(os, kcred, zplprops, tx); #endif dsl_dataset_rele(ds, FTAG); @@ -285,6 +287,14 @@ dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg) return (dp); } +static int +deadlist_enqueue_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + dsl_deadlist_t *dl = arg; + dsl_deadlist_insert(dl, bp, tx); + return (0); +} + void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) { @@ -293,11 +303,19 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) dsl_dir_t *dd; dsl_dataset_t *ds; dsl_sync_task_group_t *dstg; - objset_impl_t *mosi = dp->dp_meta_objset->os; + objset_t *mos = dp->dp_meta_objset; hrtime_t start, write_time; uint64_t data_written; int err; + /* + * We need to copy dp_space_towrite() before doing + * dsl_sync_task_group_sync(), because + * dsl_dataset_snapshot_reserve_space() will increase + * dp_space_towrite but not actually write anything. + */ + data_written = dp->dp_space_towrite[txg & TXG_MASK]; + tx = dmu_tx_create_assigned(dp, txg); dp->dp_read_overhead = 0; @@ -323,11 +341,11 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) for (ds = list_head(&dp->dp_synced_datasets); ds; ds = list_next(&dp->dp_synced_datasets, ds)) - dmu_objset_do_userquota_callbacks(ds->ds_user_ptr, tx); + dmu_objset_do_userquota_updates(ds->ds_objset, tx); /* * Sync the datasets again to push out the changes due to - * userquota updates. This must be done before we process the + * userspace updates. This must be done before we process the * sync tasks, because that could cause a snapshot of a dataset * whose ds_bp will be rewritten when we do this 2nd sync. */ @@ -339,6 +357,16 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) } err = zio_wait(zio); + /* + * Move dead blocks from the pending deadlist to the on-disk + * deadlist. + */ + for (ds = list_head(&dp->dp_synced_datasets); ds; + ds = list_next(&dp->dp_synced_datasets, ds)) { + bplist_iterate(&ds->ds_pending_deadlist, + deadlist_enqueue_cb, &ds->ds_deadlist, tx); + } + while (dstg = txg_list_remove(&dp->dp_sync_tasks, txg)) { /* * No more sync tasks should have been added while we @@ -354,14 +382,11 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) dsl_dir_sync(dd, tx); write_time += gethrtime() - start; - if (spa_sync_pass(dp->dp_spa) == 1) - dsl_pool_scrub_sync(dp, tx); - start = gethrtime(); - if (list_head(&mosi->os_dirty_dnodes[txg & TXG_MASK]) != NULL || - list_head(&mosi->os_free_dnodes[txg & TXG_MASK]) != NULL) { + if (list_head(&mos->os_dirty_dnodes[txg & TXG_MASK]) != NULL || + list_head(&mos->os_free_dnodes[txg & TXG_MASK]) != NULL) { zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); - dmu_objset_sync(mosi, zio, tx); + dmu_objset_sync(mos, zio, tx); err = zio_wait(zio); ASSERT(err == 0); dprintf_bp(&dp->dp_meta_rootbp, "meta objset rootbp is %s", ""); @@ -374,7 +399,6 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) dmu_tx_commit(tx); - data_written = dp->dp_space_towrite[txg & TXG_MASK]; dp->dp_space_towrite[txg & TXG_MASK] = 0; ASSERT(dp->dp_tempreserved[txg & TXG_MASK] == 0); @@ -399,10 +423,14 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) * amount of write traffic allowed into each transaction group. * Weight the throughput calculation towards the current value: * thru = 3/4 old_thru + 1/4 new_thru + * + * Note: write_time is in nanosecs, so write_time/MICROSEC + * yields millisecs */ ASSERT(zfs_write_limit_min > 0); - if (data_written > zfs_write_limit_min / 8 && write_time > 0) { - uint64_t throughput = (data_written * NANOSEC) / write_time; + if (data_written > zfs_write_limit_min / 8 && write_time > MICROSEC) { + uint64_t throughput = data_written / (write_time / MICROSEC); + if (dp->dp_throughput) dp->dp_throughput = throughput / 4 + 3 * dp->dp_throughput / 4; @@ -410,21 +438,24 @@ dsl_pool_sync(dsl_pool_t *dp, uint64_t txg) dp->dp_throughput = throughput; dp->dp_write_limit = MIN(zfs_write_limit_inflated, MAX(zfs_write_limit_min, - dp->dp_throughput * zfs_txg_synctime)); + dp->dp_throughput * zfs_txg_synctime_ms)); } } void -dsl_pool_zil_clean(dsl_pool_t *dp) +dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg) { dsl_dataset_t *ds; + objset_t *os; while (ds = list_head(&dp->dp_synced_datasets)) { list_remove(&dp->dp_synced_datasets, ds); - ASSERT(ds->ds_user_ptr != NULL); - zil_clean(((objset_impl_t *)ds->ds_user_ptr)->os_zil); + os = ds->ds_objset; + zil_clean(os->os_zil); + ASSERT(!dmu_objset_is_dirty(os, txg)); dmu_buf_rele(ds->ds_dbuf, ds); } + ASSERT(!dmu_objset_is_dirty(dp->dp_meta_objset, txg)); } /* @@ -601,6 +632,7 @@ upgrade_clones_cb(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) ASSERT(ds->ds_phys->ds_prev_snap_obj == prev->ds_object); if (prev->ds_phys->ds_next_clones_obj == 0) { + dmu_buf_will_dirty(prev->ds_dbuf, tx); prev->ds_phys->ds_next_clones_obj = zap_create(dp->dp_meta_objset, DMU_OT_NEXT_CLONES, DMU_OT_NONE, 0, tx); @@ -620,8 +652,67 @@ dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx) ASSERT(dmu_tx_is_syncing(tx)); ASSERT(dp->dp_origin_snap != NULL); - (void) dmu_objset_find_spa(dp->dp_spa, NULL, upgrade_clones_cb, - tx, DS_FIND_CHILDREN); + VERIFY3U(0, ==, dmu_objset_find_spa(dp->dp_spa, NULL, upgrade_clones_cb, + tx, DS_FIND_CHILDREN)); +} + +/* ARGSUSED */ +static int +upgrade_dir_clones_cb(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) +{ + dmu_tx_t *tx = arg; + dsl_dataset_t *ds; + dsl_pool_t *dp = spa_get_dsl(spa); + objset_t *mos = dp->dp_meta_objset; + + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds)); + + if (ds->ds_dir->dd_phys->dd_origin_obj) { + dsl_dataset_t *origin; + + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, + ds->ds_dir->dd_phys->dd_origin_obj, FTAG, &origin)); + + if (origin->ds_dir->dd_phys->dd_clones == 0) { + dmu_buf_will_dirty(origin->ds_dir->dd_dbuf, tx); + origin->ds_dir->dd_phys->dd_clones = zap_create(mos, + DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx); + } + + VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset, + origin->ds_dir->dd_phys->dd_clones, dsobj, tx)); + + dsl_dataset_rele(origin, FTAG); + } + + dsl_dataset_rele(ds, FTAG); + return (0); +} + +void +dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx) +{ + ASSERT(dmu_tx_is_syncing(tx)); + uint64_t obj; + + (void) dsl_dir_create_sync(dp, dp->dp_root_dir, FREE_DIR_NAME, tx); + VERIFY(0 == dsl_pool_open_special_dir(dp, + FREE_DIR_NAME, &dp->dp_free_dir)); + + /* + * We can't use bpobj_alloc(), because spa_version() still + * returns the old version, and we need a new-version bpobj with + * subobj support. So call dmu_object_alloc() directly. + */ + obj = dmu_object_alloc(dp->dp_meta_objset, DMU_OT_BPOBJ, + SPA_MAXBLOCKSIZE, DMU_OT_BPOBJ_HDR, sizeof (bpobj_phys_t), tx); + VERIFY3U(0, ==, zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + DMU_POOL_FREE_BPOBJ, sizeof (uint64_t), 1, &obj, tx)); + VERIFY3U(0, ==, bpobj_open(&dp->dp_free_bpobj, + dp->dp_meta_objset, obj)); + + VERIFY3U(0, ==, dmu_objset_find_spa(dp->dp_spa, NULL, + upgrade_dir_clones_cb, tx, DS_FIND_CHILDREN)); } void @@ -638,7 +729,7 @@ dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx) dsobj = dsl_dataset_create_sync(dp->dp_root_dir, ORIGIN_DIR_NAME, NULL, 0, kcred, tx); VERIFY(0 == dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds)); - dsl_dataset_snapshot_sync(ds, ORIGIN_DIR_NAME, kcred, tx); + dsl_dataset_snapshot_sync(ds, ORIGIN_DIR_NAME, tx); VERIFY(0 == dsl_dataset_hold_obj(dp, ds->ds_phys->ds_prev_snap_obj, dp, &dp->dp_origin_snap)); dsl_dataset_rele(ds, FTAG); @@ -650,3 +741,108 @@ dsl_pool_vnrele_taskq(dsl_pool_t *dp) { return (dp->dp_vnrele_taskq); } + +/* + * Walk through the pool-wide zap object of temporary snapshot user holds + * and release them. + */ +void +dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp) +{ + zap_attribute_t za; + zap_cursor_t zc; + objset_t *mos = dp->dp_meta_objset; + uint64_t zapobj = dp->dp_tmp_userrefs_obj; + + if (zapobj == 0) + return; + ASSERT(spa_version(dp->dp_spa) >= SPA_VERSION_USERREFS); + + for (zap_cursor_init(&zc, mos, zapobj); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) { + char *htag; + uint64_t dsobj; + + htag = strchr(za.za_name, '-'); + *htag = '\0'; + ++htag; + dsobj = strtonum(za.za_name, NULL); + (void) dsl_dataset_user_release_tmp(dp, dsobj, htag); + } + zap_cursor_fini(&zc); +} + +/* + * Create the pool-wide zap object for storing temporary snapshot holds. + */ +void +dsl_pool_user_hold_create_obj(dsl_pool_t *dp, dmu_tx_t *tx) +{ + objset_t *mos = dp->dp_meta_objset; + + ASSERT(dp->dp_tmp_userrefs_obj == 0); + ASSERT(dmu_tx_is_syncing(tx)); + + dp->dp_tmp_userrefs_obj = zap_create(mos, DMU_OT_USERREFS, + DMU_OT_NONE, 0, tx); + + VERIFY(zap_add(mos, DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_TMP_USERREFS, + sizeof (uint64_t), 1, &dp->dp_tmp_userrefs_obj, tx) == 0); +} + +static int +dsl_pool_user_hold_rele_impl(dsl_pool_t *dp, uint64_t dsobj, + const char *tag, uint64_t *now, dmu_tx_t *tx, boolean_t holding) +{ + objset_t *mos = dp->dp_meta_objset; + uint64_t zapobj = dp->dp_tmp_userrefs_obj; + char *name; + int error; + + ASSERT(spa_version(dp->dp_spa) >= SPA_VERSION_USERREFS); + ASSERT(dmu_tx_is_syncing(tx)); + + /* + * If the pool was created prior to SPA_VERSION_USERREFS, the + * zap object for temporary holds might not exist yet. + */ + if (zapobj == 0) { + if (holding) { + dsl_pool_user_hold_create_obj(dp, tx); + zapobj = dp->dp_tmp_userrefs_obj; + } else { + return (ENOENT); + } + } + + name = kmem_asprintf("%llx-%s", (u_longlong_t)dsobj, tag); + if (holding) + error = zap_add(mos, zapobj, name, 8, 1, now, tx); + else + error = zap_remove(mos, zapobj, name, tx); + strfree(name); + + return (error); +} + +/* + * Add a temporary hold for the given dataset object and tag. + */ +int +dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj, const char *tag, + uint64_t *now, dmu_tx_t *tx) +{ + return (dsl_pool_user_hold_rele_impl(dp, dsobj, tag, now, tx, B_TRUE)); +} + +/* + * Release a temporary hold for the given dataset object and tag. + */ +int +dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj, const char *tag, + dmu_tx_t *tx) +{ + return (dsl_pool_user_hold_rele_impl(dp, dsobj, tag, NULL, + tx, B_FALSE)); +} diff --git a/module/zfs/dsl_prop.c b/module/zfs/dsl_prop.c index bfc0fa87e..aa66b32e7 100644 --- a/module/zfs/dsl_prop.c +++ b/module/zfs/dsl_prop.c @@ -19,10 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +#include <sys/zfs_context.h> #include <sys/dmu.h> #include <sys/dmu_objset.h> #include <sys/dmu_tx.h> @@ -31,14 +31,16 @@ #include <sys/dsl_prop.h> #include <sys/dsl_synctask.h> #include <sys/spa.h> -#include <sys/zio_checksum.h> /* for the default checksum value */ #include <sys/zap.h> #include <sys/fs/zfs.h> #include "zfs_prop.h" +#define ZPROP_INHERIT_SUFFIX "$inherit" +#define ZPROP_RECVD_SUFFIX "$recvd" + static int -dodefault(const char *propname, int intsz, int numint, void *buf) +dodefault(const char *propname, int intsz, int numints, void *buf) { zfs_prop_t prop; @@ -55,9 +57,9 @@ dodefault(const char *propname, int intsz, int numint, void *buf) if (intsz != 1) return (EOVERFLOW); (void) strncpy(buf, zfs_prop_default_string(prop), - numint); + numints); } else { - if (intsz != 8 || numint < 1) + if (intsz != 8 || numints < 1) return (EOVERFLOW); *(uint64_t *)buf = zfs_prop_default_numeric(prop); @@ -68,11 +70,16 @@ dodefault(const char *propname, int intsz, int numint, void *buf) int dsl_prop_get_dd(dsl_dir_t *dd, const char *propname, - int intsz, int numint, void *buf, char *setpoint) + int intsz, int numints, void *buf, char *setpoint, boolean_t snapshot) { int err = ENOENT; + dsl_dir_t *target = dd; objset_t *mos = dd->dd_pool->dp_meta_objset; zfs_prop_t prop; + boolean_t inheritable; + boolean_t inheriting = B_FALSE; + char *inheritstr; + char *recvdstr; ASSERT(RW_LOCK_HELD(&dd->dd_pool->dp_config_rwlock)); @@ -80,51 +87,135 @@ dsl_prop_get_dd(dsl_dir_t *dd, const char *propname, setpoint[0] = '\0'; prop = zfs_name_to_prop(propname); + inheritable = (prop == ZPROP_INVAL || zfs_prop_inheritable(prop)); + inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX); + recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); /* - * Note: dd may be NULL, therefore we shouldn't dereference it - * ouside this loop. + * Note: dd may become NULL, therefore we shouldn't dereference it + * after this loop. */ for (; dd != NULL; dd = dd->dd_parent) { ASSERT(RW_LOCK_HELD(&dd->dd_pool->dp_config_rwlock)); - err = zap_lookup(mos, dd->dd_phys->dd_props_zapobj, - propname, intsz, numint, buf); + + if (dd != target || snapshot) { + if (!inheritable) + break; + inheriting = B_TRUE; + } + + /* Check for a local value. */ + err = zap_lookup(mos, dd->dd_phys->dd_props_zapobj, propname, + intsz, numints, buf); if (err != ENOENT) { - if (setpoint) + if (setpoint != NULL && err == 0) dsl_dir_name(dd, setpoint); break; } /* - * Break out of this loop for non-inheritable properties. + * Skip the check for a received value if there is an explicit + * inheritance entry. */ - if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) + err = zap_contains(mos, dd->dd_phys->dd_props_zapobj, + inheritstr); + if (err != 0 && err != ENOENT) break; + + if (err == ENOENT) { + /* Check for a received value. */ + err = zap_lookup(mos, dd->dd_phys->dd_props_zapobj, + recvdstr, intsz, numints, buf); + if (err != ENOENT) { + if (setpoint != NULL && err == 0) { + if (inheriting) { + dsl_dir_name(dd, setpoint); + } else { + (void) strcpy(setpoint, + ZPROP_SOURCE_VAL_RECVD); + } + } + break; + } + } + + /* + * If we found an explicit inheritance entry, err is zero even + * though we haven't yet found the value, so reinitializing err + * at the end of the loop (instead of at the beginning) ensures + * that err has a valid post-loop value. + */ + err = ENOENT; } + if (err == ENOENT) - err = dodefault(propname, intsz, numint, buf); + err = dodefault(propname, intsz, numints, buf); + + strfree(inheritstr); + strfree(recvdstr); return (err); } int dsl_prop_get_ds(dsl_dataset_t *ds, const char *propname, - int intsz, int numint, void *buf, char *setpoint) + int intsz, int numints, void *buf, char *setpoint) { + zfs_prop_t prop = zfs_name_to_prop(propname); + boolean_t inheritable; + boolean_t snapshot; + uint64_t zapobj; + ASSERT(RW_LOCK_HELD(&ds->ds_dir->dd_pool->dp_config_rwlock)); + inheritable = (prop == ZPROP_INVAL || zfs_prop_inheritable(prop)); + snapshot = (ds->ds_phys != NULL && dsl_dataset_is_snapshot(ds)); + zapobj = (ds->ds_phys == NULL ? 0 : ds->ds_phys->ds_props_obj); + + if (zapobj != 0) { + objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; + int err; - if (ds->ds_phys->ds_props_obj) { - int err = zap_lookup(ds->ds_dir->dd_pool->dp_meta_objset, - ds->ds_phys->ds_props_obj, propname, intsz, numint, buf); + ASSERT(snapshot); + + /* Check for a local value. */ + err = zap_lookup(mos, zapobj, propname, intsz, numints, buf); if (err != ENOENT) { - if (setpoint) + if (setpoint != NULL && err == 0) dsl_dataset_name(ds, setpoint); return (err); } + + /* + * Skip the check for a received value if there is an explicit + * inheritance entry. + */ + if (inheritable) { + char *inheritstr = kmem_asprintf("%s%s", propname, + ZPROP_INHERIT_SUFFIX); + err = zap_contains(mos, zapobj, inheritstr); + strfree(inheritstr); + if (err != 0 && err != ENOENT) + return (err); + } + + if (err == ENOENT) { + /* Check for a received value. */ + char *recvdstr = kmem_asprintf("%s%s", propname, + ZPROP_RECVD_SUFFIX); + err = zap_lookup(mos, zapobj, recvdstr, + intsz, numints, buf); + strfree(recvdstr); + if (err != ENOENT) { + if (setpoint != NULL && err == 0) + (void) strcpy(setpoint, + ZPROP_SOURCE_VAL_RECVD); + return (err); + } + } } return (dsl_prop_get_dd(ds->ds_dir, propname, - intsz, numint, buf, setpoint)); + intsz, numints, buf, setpoint, snapshot)); } /* @@ -168,11 +259,8 @@ dsl_prop_register(dsl_dataset_t *ds, const char *propname, cbr->cbr_func(cbr->cbr_arg, value); - VERIFY(0 == dsl_dir_open_obj(dp, dd->dd_object, - NULL, cbr, &dd)); if (need_rwlock) rw_exit(&dp->dp_config_rwlock); - /* Leave dir open until this callback is unregistered */ return (0); } @@ -210,6 +298,137 @@ dsl_prop_get_integer(const char *ddname, const char *propname, return (dsl_prop_get(ddname, propname, 8, 1, valuep, setpoint)); } +void +dsl_prop_setarg_init_uint64(dsl_prop_setarg_t *psa, const char *propname, + zprop_source_t source, uint64_t *value) +{ + psa->psa_name = propname; + psa->psa_source = source; + psa->psa_intsz = 8; + psa->psa_numints = 1; + psa->psa_value = value; + + psa->psa_effective_value = -1ULL; +} + +/* + * Predict the effective value of the given special property if it were set with + * the given value and source. This is not a general purpose function. It exists + * only to handle the special requirements of the quota and reservation + * properties. The fact that these properties are non-inheritable greatly + * simplifies the prediction logic. + * + * Returns 0 on success, a positive error code on failure, or -1 if called with + * a property not handled by this function. + */ +int +dsl_prop_predict_sync(dsl_dir_t *dd, dsl_prop_setarg_t *psa) +{ + const char *propname = psa->psa_name; + zfs_prop_t prop = zfs_name_to_prop(propname); + zprop_source_t source = psa->psa_source; + objset_t *mos; + uint64_t zapobj; + uint64_t version; + char *recvdstr; + int err = 0; + + switch (prop) { + case ZFS_PROP_QUOTA: + case ZFS_PROP_RESERVATION: + case ZFS_PROP_REFQUOTA: + case ZFS_PROP_REFRESERVATION: + break; + default: + return (-1); + } + + mos = dd->dd_pool->dp_meta_objset; + zapobj = dd->dd_phys->dd_props_zapobj; + recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); + + version = spa_version(dd->dd_pool->dp_spa); + if (version < SPA_VERSION_RECVD_PROPS) { + if (source & ZPROP_SRC_NONE) + source = ZPROP_SRC_NONE; + else if (source & ZPROP_SRC_RECEIVED) + source = ZPROP_SRC_LOCAL; + } + + switch (source) { + case ZPROP_SRC_NONE: + /* Revert to the received value, if any. */ + err = zap_lookup(mos, zapobj, recvdstr, 8, 1, + &psa->psa_effective_value); + if (err == ENOENT) + psa->psa_effective_value = 0; + break; + case ZPROP_SRC_LOCAL: + psa->psa_effective_value = *(uint64_t *)psa->psa_value; + break; + case ZPROP_SRC_RECEIVED: + /* + * If there's no local setting, then the new received value will + * be the effective value. + */ + err = zap_lookup(mos, zapobj, propname, 8, 1, + &psa->psa_effective_value); + if (err == ENOENT) + psa->psa_effective_value = *(uint64_t *)psa->psa_value; + break; + case (ZPROP_SRC_NONE | ZPROP_SRC_RECEIVED): + /* + * We're clearing the received value, so the local setting (if + * it exists) remains the effective value. + */ + err = zap_lookup(mos, zapobj, propname, 8, 1, + &psa->psa_effective_value); + if (err == ENOENT) + psa->psa_effective_value = 0; + break; + default: + cmn_err(CE_PANIC, "unexpected property source: %d", source); + } + + strfree(recvdstr); + + if (err == ENOENT) + return (0); + + return (err); +} + +#ifdef ZFS_DEBUG +void +dsl_prop_check_prediction(dsl_dir_t *dd, dsl_prop_setarg_t *psa) +{ + zfs_prop_t prop = zfs_name_to_prop(psa->psa_name); + uint64_t intval; + char setpoint[MAXNAMELEN]; + uint64_t version = spa_version(dd->dd_pool->dp_spa); + int err; + + if (version < SPA_VERSION_RECVD_PROPS) { + switch (prop) { + case ZFS_PROP_QUOTA: + case ZFS_PROP_RESERVATION: + return; + } + } + + err = dsl_prop_get_dd(dd, psa->psa_name, 8, 1, &intval, + setpoint, B_FALSE); + if (err == 0 && intval != psa->psa_effective_value) { + cmn_err(CE_PANIC, "%s property, source: %x, " + "predicted effective value: %llu, " + "actual effective value: %llu (setpoint: %s)", + psa->psa_name, psa->psa_source, + (unsigned long long)psa->psa_effective_value, + (unsigned long long)intval, setpoint); + } +} +#endif + /* * Unregister this callback. Return 0 on success, ENOENT if ddname is * invalid, ENOMSG if no matching callback registered. @@ -241,8 +460,6 @@ dsl_prop_unregister(dsl_dataset_t *ds, const char *propname, kmem_free((void*)cbr->cbr_propname, strlen(cbr->cbr_propname)+1); kmem_free(cbr, sizeof (dsl_prop_cb_record_t)); - /* Clean up from dsl_prop_register */ - dsl_dir_close(dd, cbr); return (0); } @@ -277,7 +494,6 @@ dsl_prop_changed_notify(dsl_pool_t *dp, uint64_t ddobj, zap_cursor_t zc; zap_attribute_t *za; int err; - uint64_t dummyval; ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); err = dsl_dir_open_obj(dp, ddobj, NULL, FTAG, &dd); @@ -289,8 +505,7 @@ dsl_prop_changed_notify(dsl_pool_t *dp, uint64_t ddobj, * If the prop is set here, then this change is not * being inherited here or below; stop the recursion. */ - err = zap_lookup(mos, dd->dd_phys->dd_props_zapobj, propname, - 8, 1, &dummyval); + err = zap_contains(mos, dd->dd_phys->dd_props_zapobj, propname); if (err == 0) { dsl_dir_close(dd, FTAG); return; @@ -310,8 +525,7 @@ dsl_prop_changed_notify(dsl_pool_t *dp, uint64_t ddobj, * If the property is set on this ds, then it is not * inherited here; don't call the callback. */ - if (propobj && 0 == zap_lookup(mos, propobj, propname, - 8, 1, &dummyval)) + if (propobj && 0 == zap_contains(mos, propobj, propname)) continue; cbr->cbr_func(cbr->cbr_arg, value); @@ -331,30 +545,28 @@ dsl_prop_changed_notify(dsl_pool_t *dp, uint64_t ddobj, dsl_dir_close(dd, FTAG); } -struct prop_set_arg { - const char *name; - int intsz; - int numints; - const void *buf; -}; - - -static void -dsl_prop_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +void +dsl_prop_set_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - struct prop_set_arg *psa = arg2; + dsl_prop_setarg_t *psa = arg2; objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; - uint64_t zapobj, intval; + uint64_t zapobj, intval, dummy; int isint; char valbuf[32]; - char *valstr; + char *valstr = NULL; + char *inheritstr; + char *recvdstr; + char *tbuf = NULL; + int err; + uint64_t version = spa_version(ds->ds_dir->dd_pool->dp_spa); + const char *propname = psa->psa_name; + zprop_source_t source = psa->psa_source; - isint = (dodefault(psa->name, 8, 1, &intval) == 0); + isint = (dodefault(propname, 8, 1, &intval) == 0); - if (dsl_dataset_is_snapshot(ds)) { - ASSERT(spa_version(ds->ds_dir->dd_pool->dp_spa) >= - SPA_VERSION_SNAP_PROPS); + if (ds->ds_phys != NULL && dsl_dataset_is_snapshot(ds)) { + ASSERT(version >= SPA_VERSION_SNAP_PROPS); if (ds->ds_phys->ds_props_obj == 0) { dmu_buf_will_dirty(ds->ds_dbuf, tx); ds->ds_phys->ds_props_obj = @@ -366,22 +578,97 @@ dsl_prop_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) zapobj = ds->ds_dir->dd_phys->dd_props_zapobj; } - if (psa->numints == 0) { - int err = zap_remove(mos, zapobj, psa->name, tx); + if (version < SPA_VERSION_RECVD_PROPS) { + zfs_prop_t prop = zfs_name_to_prop(propname); + if (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_RESERVATION) + return; + + if (source & ZPROP_SRC_NONE) + source = ZPROP_SRC_NONE; + else if (source & ZPROP_SRC_RECEIVED) + source = ZPROP_SRC_LOCAL; + } + + inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX); + recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); + + switch (source) { + case ZPROP_SRC_NONE: + /* + * revert to received value, if any (inherit -S) + * - remove propname + * - remove propname$inherit + */ + err = zap_remove(mos, zapobj, propname, tx); + ASSERT(err == 0 || err == ENOENT); + err = zap_remove(mos, zapobj, inheritstr, tx); ASSERT(err == 0 || err == ENOENT); - if (isint) { - VERIFY(0 == dsl_prop_get_ds(ds, - psa->name, 8, 1, &intval, NULL)); + break; + case ZPROP_SRC_LOCAL: + /* + * remove propname$inherit + * set propname -> value + */ + err = zap_remove(mos, zapobj, inheritstr, tx); + ASSERT(err == 0 || err == ENOENT); + VERIFY(0 == zap_update(mos, zapobj, propname, + psa->psa_intsz, psa->psa_numints, psa->psa_value, tx)); + break; + case ZPROP_SRC_INHERITED: + /* + * explicitly inherit + * - remove propname + * - set propname$inherit + */ + err = zap_remove(mos, zapobj, propname, tx); + ASSERT(err == 0 || err == ENOENT); + if (version >= SPA_VERSION_RECVD_PROPS && + dsl_prop_get_ds(ds, ZPROP_HAS_RECVD, 8, 1, &dummy, + NULL) == 0) { + dummy = 0; + err = zap_update(mos, zapobj, inheritstr, + 8, 1, &dummy, tx); + ASSERT(err == 0); } - } else { - VERIFY(0 == zap_update(mos, zapobj, psa->name, - psa->intsz, psa->numints, psa->buf, tx)); - if (isint) - intval = *(uint64_t *)psa->buf; + break; + case ZPROP_SRC_RECEIVED: + /* + * set propname$recvd -> value + */ + err = zap_update(mos, zapobj, recvdstr, + psa->psa_intsz, psa->psa_numints, psa->psa_value, tx); + ASSERT(err == 0); + break; + case (ZPROP_SRC_NONE | ZPROP_SRC_LOCAL | ZPROP_SRC_RECEIVED): + /* + * clear local and received settings + * - remove propname + * - remove propname$inherit + * - remove propname$recvd + */ + err = zap_remove(mos, zapobj, propname, tx); + ASSERT(err == 0 || err == ENOENT); + err = zap_remove(mos, zapobj, inheritstr, tx); + ASSERT(err == 0 || err == ENOENT); + /* FALLTHRU */ + case (ZPROP_SRC_NONE | ZPROP_SRC_RECEIVED): + /* + * remove propname$recvd + */ + err = zap_remove(mos, zapobj, recvdstr, tx); + ASSERT(err == 0 || err == ENOENT); + break; + default: + cmn_err(CE_PANIC, "unexpected property source: %d", source); } + strfree(inheritstr); + strfree(recvdstr); + if (isint) { - if (dsl_dataset_is_snapshot(ds)) { + VERIFY(0 == dsl_prop_get_ds(ds, propname, 8, 1, &intval, NULL)); + + if (ds->ds_phys != NULL && dsl_dataset_is_snapshot(ds)) { dsl_prop_cb_record_t *cbr; /* * It's a snapshot; nothing can inherit this @@ -392,58 +679,85 @@ dsl_prop_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) for (cbr = list_head(&ds->ds_dir->dd_prop_cbs); cbr; cbr = list_next(&ds->ds_dir->dd_prop_cbs, cbr)) { if (cbr->cbr_ds == ds && - strcmp(cbr->cbr_propname, psa->name) == 0) + strcmp(cbr->cbr_propname, propname) == 0) cbr->cbr_func(cbr->cbr_arg, intval); } mutex_exit(&ds->ds_dir->dd_lock); } else { dsl_prop_changed_notify(ds->ds_dir->dd_pool, - ds->ds_dir->dd_object, psa->name, intval, TRUE); + ds->ds_dir->dd_object, propname, intval, TRUE); } - } - if (isint) { + (void) snprintf(valbuf, sizeof (valbuf), "%lld", (longlong_t)intval); valstr = valbuf; } else { - valstr = (char *)psa->buf; + if (source == ZPROP_SRC_LOCAL) { + valstr = (char *)psa->psa_value; + } else { + tbuf = kmem_alloc(ZAP_MAXVALUELEN, KM_SLEEP); + if (dsl_prop_get_ds(ds, propname, 1, + ZAP_MAXVALUELEN, tbuf, NULL) == 0) + valstr = tbuf; + } } - spa_history_internal_log((psa->numints == 0) ? LOG_DS_INHERIT : - LOG_DS_PROPSET, ds->ds_dir->dd_pool->dp_spa, tx, cr, - "%s=%s dataset = %llu", psa->name, valstr, ds->ds_object); + + spa_history_log_internal((source == ZPROP_SRC_NONE || + source == ZPROP_SRC_INHERITED) ? LOG_DS_INHERIT : + LOG_DS_PROPSET, ds->ds_dir->dd_pool->dp_spa, tx, + "%s=%s dataset = %llu", propname, + (valstr == NULL ? "" : valstr), ds->ds_object); + + if (tbuf != NULL) + kmem_free(tbuf, ZAP_MAXVALUELEN); } void -dsl_props_set_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +dsl_props_set_sync(void *arg1, void *arg2, dmu_tx_t *tx) { dsl_dataset_t *ds = arg1; - nvlist_t *nvl = arg2; + dsl_props_arg_t *pa = arg2; + nvlist_t *props = pa->pa_props; + dsl_prop_setarg_t psa; nvpair_t *elem = NULL; - while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { - struct prop_set_arg psa; + psa.psa_source = pa->pa_source; - psa.name = nvpair_name(elem); + while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { + nvpair_t *pair = elem; - if (nvpair_type(elem) == DATA_TYPE_STRING) { - VERIFY(nvpair_value_string(elem, - (char **)&psa.buf) == 0); - psa.intsz = 1; - psa.numints = strlen(psa.buf) + 1; + psa.psa_name = nvpair_name(pair); + + if (nvpair_type(pair) == DATA_TYPE_NVLIST) { + /* + * dsl_prop_get_all_impl() returns properties in this + * format. + */ + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); + VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &pair) == 0); + } + + if (nvpair_type(pair) == DATA_TYPE_STRING) { + VERIFY(nvpair_value_string(pair, + (char **)&psa.psa_value) == 0); + psa.psa_intsz = 1; + psa.psa_numints = strlen(psa.psa_value) + 1; } else { uint64_t intval; - VERIFY(nvpair_value_uint64(elem, &intval) == 0); - psa.intsz = sizeof (intval); - psa.numints = 1; - psa.buf = &intval; + VERIFY(nvpair_value_uint64(pair, &intval) == 0); + psa.psa_intsz = sizeof (intval); + psa.psa_numints = 1; + psa.psa_value = &intval; } - dsl_prop_set_sync(ds, &psa, cr, tx); + dsl_prop_set_sync(ds, &psa, tx); } } void dsl_dir_prop_set_uint64_sync(dsl_dir_t *dd, const char *name, uint64_t val, - cred_t *cr, dmu_tx_t *tx) + dmu_tx_t *tx) { objset_t *mos = dd->dd_pool->dp_meta_objset; uint64_t zapobj = dd->dd_phys->dd_props_zapobj; @@ -454,19 +768,19 @@ dsl_dir_prop_set_uint64_sync(dsl_dir_t *dd, const char *name, uint64_t val, dsl_prop_changed_notify(dd->dd_pool, dd->dd_object, name, val, TRUE); - spa_history_internal_log(LOG_DS_PROPSET, dd->dd_pool->dp_spa, tx, cr, + spa_history_log_internal(LOG_DS_PROPSET, dd->dd_pool->dp_spa, tx, "%s=%llu dataset = %llu", name, (u_longlong_t)val, dd->dd_phys->dd_head_dataset_obj); } int -dsl_prop_set(const char *dsname, const char *propname, +dsl_prop_set(const char *dsname, const char *propname, zprop_source_t source, int intsz, int numints, const void *buf) { dsl_dataset_t *ds; uint64_t version; int err; - struct prop_set_arg psa; + dsl_prop_setarg_t psa; /* * We must do these checks before we get to the syncfunc, since @@ -491,10 +805,13 @@ dsl_prop_set(const char *dsname, const char *propname, return (ENOTSUP); } - psa.name = propname; - psa.intsz = intsz; - psa.numints = numints; - psa.buf = buf; + psa.psa_name = propname; + psa.psa_source = source; + psa.psa_intsz = intsz; + psa.psa_numints = numints; + psa.psa_value = buf; + psa.psa_effective_value = -1ULL; + err = dsl_sync_task_do(ds->ds_dir->dd_pool, NULL, dsl_prop_set_sync, ds, &psa, 2); @@ -503,11 +820,12 @@ dsl_prop_set(const char *dsname, const char *propname, } int -dsl_props_set(const char *dsname, nvlist_t *nvl) +dsl_props_set(const char *dsname, zprop_source_t source, nvlist_t *props) { dsl_dataset_t *ds; uint64_t version; nvpair_t *elem = NULL; + dsl_props_arg_t pa; int err; if (err = dsl_dataset_hold(dsname, FTAG, &ds)) @@ -516,7 +834,7 @@ dsl_props_set(const char *dsname, nvlist_t *nvl) * Do these checks before the syncfunc, since it can't fail. */ version = spa_version(ds->ds_dir->dd_pool->dp_spa); - while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { + while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { dsl_dataset_rele(ds, FTAG); return (ENAMETOOLONG); @@ -539,129 +857,281 @@ dsl_props_set(const char *dsname, nvlist_t *nvl) return (ENOTSUP); } + pa.pa_props = props; + pa.pa_source = source; + err = dsl_sync_task_do(ds->ds_dir->dd_pool, - NULL, dsl_props_set_sync, ds, nvl, 2); + NULL, dsl_props_set_sync, ds, &pa, 2); dsl_dataset_rele(ds, FTAG); return (err); } +typedef enum dsl_prop_getflags { + DSL_PROP_GET_INHERITING = 0x1, /* searching parent of target ds */ + DSL_PROP_GET_SNAPSHOT = 0x2, /* snapshot dataset */ + DSL_PROP_GET_LOCAL = 0x4, /* local properties */ + DSL_PROP_GET_RECEIVED = 0x8 /* received properties */ +} dsl_prop_getflags_t; + +static int +dsl_prop_get_all_impl(objset_t *mos, uint64_t propobj, + const char *setpoint, dsl_prop_getflags_t flags, nvlist_t *nv) +{ + zap_cursor_t zc; + zap_attribute_t za; + int err = 0; + + for (zap_cursor_init(&zc, mos, propobj); + (err = zap_cursor_retrieve(&zc, &za)) == 0; + zap_cursor_advance(&zc)) { + nvlist_t *propval; + zfs_prop_t prop; + char buf[ZAP_MAXNAMELEN]; + char *valstr; + const char *suffix; + const char *propname; + const char *source; + + suffix = strchr(za.za_name, '$'); + + if (suffix == NULL) { + /* + * Skip local properties if we only want received + * properties. + */ + if (flags & DSL_PROP_GET_RECEIVED) + continue; + + propname = za.za_name; + source = setpoint; + } else if (strcmp(suffix, ZPROP_INHERIT_SUFFIX) == 0) { + /* Skip explicitly inherited entries. */ + continue; + } else if (strcmp(suffix, ZPROP_RECVD_SUFFIX) == 0) { + if (flags & DSL_PROP_GET_LOCAL) + continue; + + (void) strncpy(buf, za.za_name, (suffix - za.za_name)); + buf[suffix - za.za_name] = '\0'; + propname = buf; + + if (!(flags & DSL_PROP_GET_RECEIVED)) { + /* Skip if locally overridden. */ + err = zap_contains(mos, propobj, propname); + if (err == 0) + continue; + if (err != ENOENT) + break; + + /* Skip if explicitly inherited. */ + valstr = kmem_asprintf("%s%s", propname, + ZPROP_INHERIT_SUFFIX); + err = zap_contains(mos, propobj, valstr); + strfree(valstr); + if (err == 0) + continue; + if (err != ENOENT) + break; + } + + source = ((flags & DSL_PROP_GET_INHERITING) ? + setpoint : ZPROP_SOURCE_VAL_RECVD); + } else { + /* + * For backward compatibility, skip suffixes we don't + * recognize. + */ + continue; + } + + prop = zfs_name_to_prop(propname); + + /* Skip non-inheritable properties. */ + if ((flags & DSL_PROP_GET_INHERITING) && prop != ZPROP_INVAL && + !zfs_prop_inheritable(prop)) + continue; + + /* Skip properties not valid for this type. */ + if ((flags & DSL_PROP_GET_SNAPSHOT) && prop != ZPROP_INVAL && + !zfs_prop_valid_for_type(prop, ZFS_TYPE_SNAPSHOT)) + continue; + + /* Skip properties already defined. */ + if (nvlist_exists(nv, propname)) + continue; + + VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); + if (za.za_integer_length == 1) { + /* + * String property + */ + char *tmp = kmem_alloc(za.za_num_integers, + KM_SLEEP); + err = zap_lookup(mos, propobj, + za.za_name, 1, za.za_num_integers, tmp); + if (err != 0) { + kmem_free(tmp, za.za_num_integers); + break; + } + VERIFY(nvlist_add_string(propval, ZPROP_VALUE, + tmp) == 0); + kmem_free(tmp, za.za_num_integers); + } else { + /* + * Integer property + */ + ASSERT(za.za_integer_length == 8); + (void) nvlist_add_uint64(propval, ZPROP_VALUE, + za.za_first_integer); + } + + VERIFY(nvlist_add_string(propval, ZPROP_SOURCE, source) == 0); + VERIFY(nvlist_add_nvlist(nv, propname, propval) == 0); + nvlist_free(propval); + } + zap_cursor_fini(&zc); + if (err == ENOENT) + err = 0; + return (err); +} + /* * Iterate over all properties for this dataset and return them in an nvlist. */ -int -dsl_prop_get_all(objset_t *os, nvlist_t **nvp, boolean_t local) +static int +dsl_prop_get_all_ds(dsl_dataset_t *ds, nvlist_t **nvp, + dsl_prop_getflags_t flags) { - dsl_dataset_t *ds = os->os->os_dsl_dataset; dsl_dir_t *dd = ds->ds_dir; - boolean_t snapshot = dsl_dataset_is_snapshot(ds); - int err = 0; dsl_pool_t *dp = dd->dd_pool; objset_t *mos = dp->dp_meta_objset; - uint64_t propobj = ds->ds_phys->ds_props_obj; + int err = 0; + char setpoint[MAXNAMELEN]; VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); - if (local && snapshot && !propobj) - return (0); + if (dsl_dataset_is_snapshot(ds)) + flags |= DSL_PROP_GET_SNAPSHOT; rw_enter(&dp->dp_config_rwlock, RW_READER); - while (dd != NULL) { - char setpoint[MAXNAMELEN]; - zap_cursor_t zc; - zap_attribute_t za; - dsl_dir_t *dd_next; - - if (propobj) { - dsl_dataset_name(ds, setpoint); - dd_next = dd; - } else { - dsl_dir_name(dd, setpoint); - propobj = dd->dd_phys->dd_props_zapobj; - dd_next = dd->dd_parent; + + if (ds->ds_phys->ds_props_obj != 0) { + ASSERT(flags & DSL_PROP_GET_SNAPSHOT); + dsl_dataset_name(ds, setpoint); + err = dsl_prop_get_all_impl(mos, ds->ds_phys->ds_props_obj, + setpoint, flags, *nvp); + if (err) + goto out; + } + + for (; dd != NULL; dd = dd->dd_parent) { + if (dd != ds->ds_dir || (flags & DSL_PROP_GET_SNAPSHOT)) { + if (flags & (DSL_PROP_GET_LOCAL | + DSL_PROP_GET_RECEIVED)) + break; + flags |= DSL_PROP_GET_INHERITING; } + dsl_dir_name(dd, setpoint); + err = dsl_prop_get_all_impl(mos, dd->dd_phys->dd_props_zapobj, + setpoint, flags, *nvp); + if (err) + break; + } +out: + rw_exit(&dp->dp_config_rwlock); + return (err); +} - for (zap_cursor_init(&zc, mos, propobj); - (err = zap_cursor_retrieve(&zc, &za)) == 0; - zap_cursor_advance(&zc)) { - nvlist_t *propval; - zfs_prop_t prop = zfs_name_to_prop(za.za_name); +boolean_t +dsl_prop_get_hasrecvd(objset_t *os) +{ + dsl_dataset_t *ds = os->os_dsl_dataset; + int rc; + uint64_t dummy; - /* Skip non-inheritable properties. */ - if (prop != ZPROP_INVAL && - !zfs_prop_inheritable(prop) && - (dd != ds->ds_dir || (snapshot && dd != dd_next))) - continue; + rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER); + rc = dsl_prop_get_ds(ds, ZPROP_HAS_RECVD, 8, 1, &dummy, NULL); + rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); + ASSERT(rc != 0 || spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS); + return (rc == 0); +} - /* Skip properties not valid for this type. */ - if (snapshot && prop != ZPROP_INVAL && - !zfs_prop_valid_for_type(prop, ZFS_TYPE_SNAPSHOT)) - continue; +static void +dsl_prop_set_hasrecvd_impl(objset_t *os, zprop_source_t source) +{ + dsl_dataset_t *ds = os->os_dsl_dataset; + uint64_t dummy = 0; + dsl_prop_setarg_t psa; - /* Skip properties already defined */ - if (nvlist_lookup_nvlist(*nvp, za.za_name, - &propval) == 0) - continue; + if (spa_version(os->os_spa) < SPA_VERSION_RECVD_PROPS) + return; - VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, - KM_SLEEP) == 0); - if (za.za_integer_length == 1) { - /* - * String property - */ - char *tmp = kmem_alloc(za.za_num_integers, - KM_SLEEP); - err = zap_lookup(mos, propobj, - za.za_name, 1, za.za_num_integers, tmp); - if (err != 0) { - kmem_free(tmp, za.za_num_integers); - break; - } - VERIFY(nvlist_add_string(propval, ZPROP_VALUE, - tmp) == 0); - kmem_free(tmp, za.za_num_integers); - } else { - /* - * Integer property - */ - ASSERT(za.za_integer_length == 8); - (void) nvlist_add_uint64(propval, ZPROP_VALUE, - za.za_first_integer); - } + dsl_prop_setarg_init_uint64(&psa, ZPROP_HAS_RECVD, source, &dummy); - VERIFY(nvlist_add_string(propval, ZPROP_SOURCE, - setpoint) == 0); - VERIFY(nvlist_add_nvlist(*nvp, za.za_name, - propval) == 0); - nvlist_free(propval); - } - zap_cursor_fini(&zc); + (void) dsl_sync_task_do(ds->ds_dir->dd_pool, NULL, + dsl_prop_set_sync, ds, &psa, 2); +} - if (err != ENOENT) - break; - err = 0; - /* - * If we are just after the props that have been set - * locally, then we are done after the first iteration. - */ - if (local) - break; - dd = dd_next; - propobj = 0; +/* + * Call after successfully receiving properties to ensure that only the first + * receive on or after SPA_VERSION_RECVD_PROPS blows away local properties. + */ +void +dsl_prop_set_hasrecvd(objset_t *os) +{ + if (dsl_prop_get_hasrecvd(os)) { + ASSERT(spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS); + return; } - rw_exit(&dp->dp_config_rwlock); + dsl_prop_set_hasrecvd_impl(os, ZPROP_SRC_LOCAL); +} - return (err); +void +dsl_prop_unset_hasrecvd(objset_t *os) +{ + dsl_prop_set_hasrecvd_impl(os, ZPROP_SRC_NONE); +} + +int +dsl_prop_get_all(objset_t *os, nvlist_t **nvp) +{ + return (dsl_prop_get_all_ds(os->os_dsl_dataset, nvp, 0)); +} + +int +dsl_prop_get_received(objset_t *os, nvlist_t **nvp) +{ + /* + * Received properties are not distinguishable from local properties + * until the dataset has received properties on or after + * SPA_VERSION_RECVD_PROPS. + */ + dsl_prop_getflags_t flags = (dsl_prop_get_hasrecvd(os) ? + DSL_PROP_GET_RECEIVED : DSL_PROP_GET_LOCAL); + return (dsl_prop_get_all_ds(os->os_dsl_dataset, nvp, flags)); } void dsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value) { nvlist_t *propval; + const char *propname = zfs_prop_to_name(prop); + uint64_t default_value; + + if (nvlist_lookup_nvlist(nv, propname, &propval) == 0) { + VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, value) == 0); + return; + } VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, value) == 0); - VERIFY(nvlist_add_nvlist(nv, zfs_prop_to_name(prop), propval) == 0); + /* Indicate the default source if we can. */ + if (dodefault(propname, 8, 1, &default_value) == 0 && + value == default_value) { + VERIFY(nvlist_add_string(propval, ZPROP_SOURCE, "") == 0); + } + VERIFY(nvlist_add_nvlist(nv, propname, propval) == 0); nvlist_free(propval); } @@ -669,9 +1139,15 @@ void dsl_prop_nvlist_add_string(nvlist_t *nv, zfs_prop_t prop, const char *value) { nvlist_t *propval; + const char *propname = zfs_prop_to_name(prop); + + if (nvlist_lookup_nvlist(nv, propname, &propval) == 0) { + VERIFY(nvlist_add_string(propval, ZPROP_VALUE, value) == 0); + return; + } VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); VERIFY(nvlist_add_string(propval, ZPROP_VALUE, value) == 0); - VERIFY(nvlist_add_nvlist(nv, zfs_prop_to_name(prop), propval) == 0); + VERIFY(nvlist_add_nvlist(nv, propname, propval) == 0); nvlist_free(propval); } diff --git a/module/zfs/dsl_scan.c b/module/zfs/dsl_scan.c new file mode 100644 index 000000000..23c37c7cc --- /dev/null +++ b/module/zfs/dsl_scan.c @@ -0,0 +1,1739 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/dsl_scan.h> +#include <sys/dsl_pool.h> +#include <sys/dsl_dataset.h> +#include <sys/dsl_prop.h> +#include <sys/dsl_dir.h> +#include <sys/dsl_synctask.h> +#include <sys/dnode.h> +#include <sys/dmu_tx.h> +#include <sys/dmu_objset.h> +#include <sys/arc.h> +#include <sys/zap.h> +#include <sys/zio.h> +#include <sys/zfs_context.h> +#include <sys/fs/zfs.h> +#include <sys/zfs_znode.h> +#include <sys/spa_impl.h> +#include <sys/vdev_impl.h> +#include <sys/zil_impl.h> +#include <sys/zio_checksum.h> +#include <sys/ddt.h> +#include <sys/sa.h> +#include <sys/sa_impl.h> +#ifdef _KERNEL +#include <sys/zfs_vfsops.h> +#endif + +typedef int (scan_cb_t)(dsl_pool_t *, const blkptr_t *, const zbookmark_t *); + +static scan_cb_t dsl_scan_defrag_cb; +static scan_cb_t dsl_scan_scrub_cb; +static scan_cb_t dsl_scan_remove_cb; +static dsl_syncfunc_t dsl_scan_cancel_sync; +static void dsl_scan_sync_state(dsl_scan_t *, dmu_tx_t *tx); + +int zfs_scan_min_time_ms = 1000; /* min millisecs to scrub per txg */ +int zfs_free_min_time_ms = 1000; /* min millisecs to free per txg */ +int zfs_resilver_min_time_ms = 3000; /* min millisecs to resilver per txg */ +boolean_t zfs_no_scrub_io = B_FALSE; /* set to disable scrub i/o */ +boolean_t zfs_no_scrub_prefetch = B_FALSE; /* set to disable srub prefetching */ +enum ddt_class zfs_scrub_ddt_class_max = DDT_CLASS_DUPLICATE; +int dsl_scan_delay_completion = B_FALSE; /* set to delay scan completion */ + +#define DSL_SCAN_IS_SCRUB_RESILVER(scn) \ + ((scn)->scn_phys.scn_func == POOL_SCAN_SCRUB || \ + (scn)->scn_phys.scn_func == POOL_SCAN_RESILVER) + +extern int zfs_txg_timeout; + +/* the order has to match pool_scan_type */ +static scan_cb_t *scan_funcs[POOL_SCAN_FUNCS] = { + NULL, + dsl_scan_scrub_cb, /* POOL_SCAN_SCRUB */ + dsl_scan_scrub_cb, /* POOL_SCAN_RESILVER */ +}; + +int +dsl_scan_init(dsl_pool_t *dp, uint64_t txg) +{ + int err; + dsl_scan_t *scn; + spa_t *spa = dp->dp_spa; + uint64_t f; + + scn = dp->dp_scan = kmem_zalloc(sizeof (dsl_scan_t), KM_SLEEP); + scn->scn_dp = dp; + + err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + "scrub_func", sizeof (uint64_t), 1, &f); + if (err == 0) { + /* + * There was an old-style scrub in progress. Restart a + * new-style scrub from the beginning. + */ + scn->scn_restart_txg = txg; + zfs_dbgmsg("old-style scrub was in progress; " + "restarting new-style scrub in txg %llu", + scn->scn_restart_txg); + + /* + * Load the queue obj from the old location so that it + * can be freed by dsl_scan_done(). + */ + (void) zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + "scrub_queue", sizeof (uint64_t), 1, + &scn->scn_phys.scn_queue_obj); + } else { + err = zap_lookup(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + DMU_POOL_SCAN, sizeof (uint64_t), SCAN_PHYS_NUMINTS, + &scn->scn_phys); + if (err == ENOENT) + return (0); + else if (err) + return (err); + + if (scn->scn_phys.scn_state == DSS_SCANNING && + spa_prev_software_version(dp->dp_spa) < SPA_VERSION_SCAN) { + /* + * A new-type scrub was in progress on an old + * pool, and the pool was accessed by old + * software. Restart from the beginning, since + * the old software may have changed the pool in + * the meantime. + */ + scn->scn_restart_txg = txg; + zfs_dbgmsg("new-style scrub was modified " + "by old software; restarting in txg %llu", + scn->scn_restart_txg); + } + } + + spa_scan_stat_init(spa); + return (0); +} + +void +dsl_scan_fini(dsl_pool_t *dp) +{ + if (dp->dp_scan) { + kmem_free(dp->dp_scan, sizeof (dsl_scan_t)); + dp->dp_scan = NULL; + } +} + +/* ARGSUSED */ +static int +dsl_scan_setup_check(void *arg1, void *arg2, dmu_tx_t *tx) +{ + dsl_scan_t *scn = arg1; + + if (scn->scn_phys.scn_state == DSS_SCANNING) + return (EBUSY); + + return (0); +} + +/* ARGSUSED */ +static void +dsl_scan_setup_sync(void *arg1, void *arg2, dmu_tx_t *tx) +{ + dsl_scan_t *scn = arg1; + pool_scan_func_t *funcp = arg2; + dmu_object_type_t ot = 0; + dsl_pool_t *dp = scn->scn_dp; + spa_t *spa = dp->dp_spa; + + ASSERT(scn->scn_phys.scn_state != DSS_SCANNING); + ASSERT(*funcp > POOL_SCAN_NONE && *funcp < POOL_SCAN_FUNCS); + bzero(&scn->scn_phys, sizeof (scn->scn_phys)); + scn->scn_phys.scn_func = *funcp; + scn->scn_phys.scn_state = DSS_SCANNING; + scn->scn_phys.scn_min_txg = 0; + scn->scn_phys.scn_max_txg = tx->tx_txg; + scn->scn_phys.scn_ddt_class_max = DDT_CLASSES - 1; /* the entire DDT */ + scn->scn_phys.scn_start_time = gethrestime_sec(); + scn->scn_phys.scn_errors = 0; + scn->scn_phys.scn_to_examine = spa->spa_root_vdev->vdev_stat.vs_alloc; + scn->scn_restart_txg = 0; + spa_scan_stat_init(spa); + + if (DSL_SCAN_IS_SCRUB_RESILVER(scn)) { + scn->scn_phys.scn_ddt_class_max = zfs_scrub_ddt_class_max; + + /* rewrite all disk labels */ + vdev_config_dirty(spa->spa_root_vdev); + + if (vdev_resilver_needed(spa->spa_root_vdev, + &scn->scn_phys.scn_min_txg, &scn->scn_phys.scn_max_txg)) { + spa_event_notify(spa, NULL, ESC_ZFS_RESILVER_START); + } else { + spa_event_notify(spa, NULL, ESC_ZFS_SCRUB_START); + } + + spa->spa_scrub_started = B_TRUE; + /* + * If this is an incremental scrub, limit the DDT scrub phase + * to just the auto-ditto class (for correctness); the rest + * of the scrub should go faster using top-down pruning. + */ + if (scn->scn_phys.scn_min_txg > TXG_INITIAL) + scn->scn_phys.scn_ddt_class_max = DDT_CLASS_DITTO; + + } + + /* back to the generic stuff */ + + if (dp->dp_blkstats == NULL) { + dp->dp_blkstats = + kmem_alloc(sizeof (zfs_all_blkstats_t), KM_SLEEP); + } + bzero(dp->dp_blkstats, sizeof (zfs_all_blkstats_t)); + + if (spa_version(spa) < SPA_VERSION_DSL_SCRUB) + ot = DMU_OT_ZAP_OTHER; + + scn->scn_phys.scn_queue_obj = zap_create(dp->dp_meta_objset, + ot ? ot : DMU_OT_SCAN_QUEUE, DMU_OT_NONE, 0, tx); + + dsl_scan_sync_state(scn, tx); + + spa_history_log_internal(LOG_POOL_SCAN, spa, tx, + "func=%u mintxg=%llu maxtxg=%llu", + *funcp, scn->scn_phys.scn_min_txg, scn->scn_phys.scn_max_txg); +} + +/* ARGSUSED */ +static void +dsl_scan_done(dsl_scan_t *scn, boolean_t complete, dmu_tx_t *tx) +{ + static const char *old_names[] = { + "scrub_bookmark", + "scrub_ddt_bookmark", + "scrub_ddt_class_max", + "scrub_queue", + "scrub_min_txg", + "scrub_max_txg", + "scrub_func", + "scrub_errors", + NULL + }; + + dsl_pool_t *dp = scn->scn_dp; + spa_t *spa = dp->dp_spa; + int i; + + /* Remove any remnants of an old-style scrub. */ + for (i = 0; old_names[i]; i++) { + (void) zap_remove(dp->dp_meta_objset, + DMU_POOL_DIRECTORY_OBJECT, old_names[i], tx); + } + + if (scn->scn_phys.scn_queue_obj != 0) { + VERIFY(0 == dmu_object_free(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, tx)); + scn->scn_phys.scn_queue_obj = 0; + } + + /* + * If we were "restarted" from a stopped state, don't bother + * with anything else. + */ + if (scn->scn_phys.scn_state != DSS_SCANNING) + return; + + if (complete) + scn->scn_phys.scn_state = DSS_FINISHED; + else + scn->scn_phys.scn_state = DSS_CANCELED; + + spa_history_log_internal(LOG_POOL_SCAN_DONE, spa, tx, + "complete=%u", complete); + + if (DSL_SCAN_IS_SCRUB_RESILVER(scn)) { + mutex_enter(&spa->spa_scrub_lock); + while (spa->spa_scrub_inflight > 0) { + cv_wait(&spa->spa_scrub_io_cv, + &spa->spa_scrub_lock); + } + mutex_exit(&spa->spa_scrub_lock); + spa->spa_scrub_started = B_FALSE; + spa->spa_scrub_active = B_FALSE; + + /* + * If the scrub/resilver completed, update all DTLs to + * reflect this. Whether it succeeded or not, vacate + * all temporary scrub DTLs. + */ + vdev_dtl_reassess(spa->spa_root_vdev, tx->tx_txg, + complete ? scn->scn_phys.scn_max_txg : 0, B_TRUE); + if (complete) { + spa_event_notify(spa, NULL, scn->scn_phys.scn_min_txg ? + ESC_ZFS_RESILVER_FINISH : ESC_ZFS_SCRUB_FINISH); + } + spa_errlog_rotate(spa); + + /* + * We may have finished replacing a device. + * Let the async thread assess this and handle the detach. + */ + spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); + } + + scn->scn_phys.scn_end_time = gethrestime_sec(); +} + +/* ARGSUSED */ +static int +dsl_scan_cancel_check(void *arg1, void *arg2, dmu_tx_t *tx) +{ + dsl_scan_t *scn = arg1; + + if (scn->scn_phys.scn_state != DSS_SCANNING) + return (ENOENT); + return (0); +} + +/* ARGSUSED */ +static void +dsl_scan_cancel_sync(void *arg1, void *arg2, dmu_tx_t *tx) +{ + dsl_scan_t *scn = arg1; + + dsl_scan_done(scn, B_FALSE, tx); + dsl_scan_sync_state(scn, tx); +} + +int +dsl_scan_cancel(dsl_pool_t *dp) +{ + boolean_t complete = B_FALSE; + int err; + + err = dsl_sync_task_do(dp, dsl_scan_cancel_check, + dsl_scan_cancel_sync, dp->dp_scan, &complete, 3); + return (err); +} + +static void dsl_scan_visitbp(blkptr_t *bp, + const zbookmark_t *zb, dnode_phys_t *dnp, arc_buf_t *pbuf, + dsl_dataset_t *ds, dsl_scan_t *scn, dmu_objset_type_t ostype, + dmu_tx_t *tx); +static void dsl_scan_visitdnode(dsl_scan_t *, dsl_dataset_t *ds, + dmu_objset_type_t ostype, + dnode_phys_t *dnp, arc_buf_t *buf, uint64_t object, dmu_tx_t *tx); + +void +dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bp) +{ + zio_free(dp->dp_spa, txg, bp); +} + +void +dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp) +{ + ASSERT(dsl_pool_sync_context(dp)); + zio_nowait(zio_free_sync(pio, dp->dp_spa, txg, bpp, pio->io_flags)); +} + +int +dsl_read(zio_t *pio, spa_t *spa, const blkptr_t *bpp, arc_buf_t *pbuf, + arc_done_func_t *done, void *private, int priority, int zio_flags, + uint32_t *arc_flags, const zbookmark_t *zb) +{ + return (arc_read(pio, spa, bpp, pbuf, done, private, + priority, zio_flags, arc_flags, zb)); +} + +int +dsl_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bpp, + arc_done_func_t *done, void *private, int priority, int zio_flags, + uint32_t *arc_flags, const zbookmark_t *zb) +{ + return (arc_read_nolock(pio, spa, bpp, done, private, + priority, zio_flags, arc_flags, zb)); +} + +static boolean_t +bookmark_is_zero(const zbookmark_t *zb) +{ + return (zb->zb_objset == 0 && zb->zb_object == 0 && + zb->zb_level == 0 && zb->zb_blkid == 0); +} + +/* dnp is the dnode for zb1->zb_object */ +static boolean_t +bookmark_is_before(const dnode_phys_t *dnp, const zbookmark_t *zb1, + const zbookmark_t *zb2) +{ + uint64_t zb1nextL0, zb2thisobj; + + ASSERT(zb1->zb_objset == zb2->zb_objset); + ASSERT(zb2->zb_level == 0); + + /* + * A bookmark in the deadlist is considered to be after + * everything else. + */ + if (zb2->zb_object == DMU_DEADLIST_OBJECT) + return (B_TRUE); + + /* The objset_phys_t isn't before anything. */ + if (dnp == NULL) + return (B_FALSE); + + zb1nextL0 = (zb1->zb_blkid + 1) << + ((zb1->zb_level) * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT)); + + zb2thisobj = zb2->zb_object ? zb2->zb_object : + zb2->zb_blkid << (DNODE_BLOCK_SHIFT - DNODE_SHIFT); + + if (zb1->zb_object == DMU_META_DNODE_OBJECT) { + uint64_t nextobj = zb1nextL0 * + (dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT) >> DNODE_SHIFT; + return (nextobj <= zb2thisobj); + } + + if (zb1->zb_object < zb2thisobj) + return (B_TRUE); + if (zb1->zb_object > zb2thisobj) + return (B_FALSE); + if (zb2->zb_object == DMU_META_DNODE_OBJECT) + return (B_FALSE); + return (zb1nextL0 <= zb2->zb_blkid); +} + +static uint64_t +dsl_scan_ds_maxtxg(dsl_dataset_t *ds) +{ + uint64_t smt = ds->ds_dir->dd_pool->dp_scan->scn_phys.scn_max_txg; + if (dsl_dataset_is_snapshot(ds)) + return (MIN(smt, ds->ds_phys->ds_creation_txg)); + return (smt); +} + +static void +dsl_scan_sync_state(dsl_scan_t *scn, dmu_tx_t *tx) +{ + VERIFY(0 == zap_update(scn->scn_dp->dp_meta_objset, + DMU_POOL_DIRECTORY_OBJECT, + DMU_POOL_SCAN, sizeof (uint64_t), SCAN_PHYS_NUMINTS, + &scn->scn_phys, tx)); +} + +static boolean_t +dsl_scan_check_pause(dsl_scan_t *scn, const zbookmark_t *zb) +{ + uint64_t elapsed_nanosecs; + int mintime; + + /* we never skip user/group accounting objects */ + if (zb && (int64_t)zb->zb_object < 0) + return (B_FALSE); + + if (scn->scn_pausing) + return (B_TRUE); /* we're already pausing */ + + if (!bookmark_is_zero(&scn->scn_phys.scn_bookmark)) + return (B_FALSE); /* we're resuming */ + + /* We only know how to resume from level-0 blocks. */ + if (zb && zb->zb_level != 0) + return (B_FALSE); + + mintime = (scn->scn_phys.scn_func == POOL_SCAN_RESILVER) ? + zfs_resilver_min_time_ms : zfs_scan_min_time_ms; + elapsed_nanosecs = gethrtime() - scn->scn_sync_start_time; + if (elapsed_nanosecs / NANOSEC > zfs_txg_timeout || + (elapsed_nanosecs / MICROSEC > mintime && + txg_sync_waiting(scn->scn_dp)) || + spa_shutting_down(scn->scn_dp->dp_spa)) { + if (zb) { + dprintf("pausing at bookmark %llx/%llx/%llx/%llx\n", + (longlong_t)zb->zb_objset, + (longlong_t)zb->zb_object, + (longlong_t)zb->zb_level, + (longlong_t)zb->zb_blkid); + scn->scn_phys.scn_bookmark = *zb; + } + dprintf("pausing at DDT bookmark %llx/%llx/%llx/%llx\n", + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_class, + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_type, + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_checksum, + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_cursor); + scn->scn_pausing = B_TRUE; + return (B_TRUE); + } + return (B_FALSE); +} + +typedef struct zil_scan_arg { + dsl_pool_t *zsa_dp; + zil_header_t *zsa_zh; +} zil_scan_arg_t; + +/* ARGSUSED */ +static int +dsl_scan_zil_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg) +{ + zil_scan_arg_t *zsa = arg; + dsl_pool_t *dp = zsa->zsa_dp; + dsl_scan_t *scn = dp->dp_scan; + zil_header_t *zh = zsa->zsa_zh; + zbookmark_t zb; + + if (bp->blk_birth <= scn->scn_phys.scn_cur_min_txg) + return (0); + + /* + * One block ("stubby") can be allocated a long time ago; we + * want to visit that one because it has been allocated + * (on-disk) even if it hasn't been claimed (even though for + * scrub there's nothing to do to it). + */ + if (claim_txg == 0 && bp->blk_birth >= spa_first_txg(dp->dp_spa)) + return (0); + + SET_BOOKMARK(&zb, zh->zh_log.blk_cksum.zc_word[ZIL_ZC_OBJSET], + ZB_ZIL_OBJECT, ZB_ZIL_LEVEL, bp->blk_cksum.zc_word[ZIL_ZC_SEQ]); + + VERIFY(0 == scan_funcs[scn->scn_phys.scn_func](dp, bp, &zb)); + return (0); +} + +/* ARGSUSED */ +static int +dsl_scan_zil_record(zilog_t *zilog, lr_t *lrc, void *arg, uint64_t claim_txg) +{ + if (lrc->lrc_txtype == TX_WRITE) { + zil_scan_arg_t *zsa = arg; + dsl_pool_t *dp = zsa->zsa_dp; + dsl_scan_t *scn = dp->dp_scan; + zil_header_t *zh = zsa->zsa_zh; + lr_write_t *lr = (lr_write_t *)lrc; + blkptr_t *bp = &lr->lr_blkptr; + zbookmark_t zb; + + if (bp->blk_birth <= scn->scn_phys.scn_cur_min_txg) + return (0); + + /* + * birth can be < claim_txg if this record's txg is + * already txg sync'ed (but this log block contains + * other records that are not synced) + */ + if (claim_txg == 0 || bp->blk_birth < claim_txg) + return (0); + + SET_BOOKMARK(&zb, zh->zh_log.blk_cksum.zc_word[ZIL_ZC_OBJSET], + lr->lr_foid, ZB_ZIL_LEVEL, + lr->lr_offset / BP_GET_LSIZE(bp)); + + VERIFY(0 == scan_funcs[scn->scn_phys.scn_func](dp, bp, &zb)); + } + return (0); +} + +static void +dsl_scan_zil(dsl_pool_t *dp, zil_header_t *zh) +{ + uint64_t claim_txg = zh->zh_claim_txg; + zil_scan_arg_t zsa = { dp, zh }; + zilog_t *zilog; + + /* + * We only want to visit blocks that have been claimed but not yet + * replayed (or, in read-only mode, blocks that *would* be claimed). + */ + if (claim_txg == 0 && spa_writeable(dp->dp_spa)) + return; + + zilog = zil_alloc(dp->dp_meta_objset, zh); + + (void) zil_parse(zilog, dsl_scan_zil_block, dsl_scan_zil_record, &zsa, + claim_txg); + + zil_free(zilog); +} + +/* ARGSUSED */ +static void +dsl_scan_prefetch(dsl_scan_t *scn, arc_buf_t *buf, blkptr_t *bp, + uint64_t objset, uint64_t object, uint64_t blkid) +{ + zbookmark_t czb; + uint32_t flags = ARC_NOWAIT | ARC_PREFETCH; + + if (zfs_no_scrub_prefetch) + return; + + if (BP_IS_HOLE(bp) || bp->blk_birth <= scn->scn_phys.scn_min_txg || + (BP_GET_LEVEL(bp) == 0 && BP_GET_TYPE(bp) != DMU_OT_DNODE)) + return; + + SET_BOOKMARK(&czb, objset, object, BP_GET_LEVEL(bp), blkid); + + /* + * XXX need to make sure all of these arc_read() prefetches are + * done before setting xlateall (similar to dsl_read()) + */ + (void) arc_read(scn->scn_zio_root, scn->scn_dp->dp_spa, bp, + buf, NULL, NULL, ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, + &flags, &czb); +} + +static boolean_t +dsl_scan_check_resume(dsl_scan_t *scn, const dnode_phys_t *dnp, + const zbookmark_t *zb) +{ + /* + * We never skip over user/group accounting objects (obj<0) + */ + if (!bookmark_is_zero(&scn->scn_phys.scn_bookmark) && + (int64_t)zb->zb_object >= 0) { + /* + * If we already visited this bp & everything below (in + * a prior txg sync), don't bother doing it again. + */ + if (bookmark_is_before(dnp, zb, &scn->scn_phys.scn_bookmark)) + return (B_TRUE); + + /* + * If we found the block we're trying to resume from, or + * we went past it to a different object, zero it out to + * indicate that it's OK to start checking for pausing + * again. + */ + if (bcmp(zb, &scn->scn_phys.scn_bookmark, sizeof (*zb)) == 0 || + zb->zb_object > scn->scn_phys.scn_bookmark.zb_object) { + dprintf("resuming at %llx/%llx/%llx/%llx\n", + (longlong_t)zb->zb_objset, + (longlong_t)zb->zb_object, + (longlong_t)zb->zb_level, + (longlong_t)zb->zb_blkid); + bzero(&scn->scn_phys.scn_bookmark, sizeof (*zb)); + } + } + return (B_FALSE); +} + +/* + * Return nonzero on i/o error. + * Return new buf to write out in *bufp. + */ +static int +dsl_scan_recurse(dsl_scan_t *scn, dsl_dataset_t *ds, dmu_objset_type_t ostype, + dnode_phys_t *dnp, const blkptr_t *bp, + const zbookmark_t *zb, dmu_tx_t *tx, arc_buf_t **bufp) +{ + dsl_pool_t *dp = scn->scn_dp; + int err; + + if (BP_GET_LEVEL(bp) > 0) { + uint32_t flags = ARC_WAIT; + int i; + blkptr_t *cbp; + int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; + + err = arc_read_nolock(NULL, dp->dp_spa, bp, + arc_getbuf_func, bufp, + ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); + if (err) { + scn->scn_phys.scn_errors++; + return (err); + } + for (i = 0, cbp = (*bufp)->b_data; i < epb; i++, cbp++) { + dsl_scan_prefetch(scn, *bufp, cbp, zb->zb_objset, + zb->zb_object, zb->zb_blkid * epb + i); + } + for (i = 0, cbp = (*bufp)->b_data; i < epb; i++, cbp++) { + zbookmark_t czb; + + SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, + zb->zb_level - 1, + zb->zb_blkid * epb + i); + dsl_scan_visitbp(cbp, &czb, dnp, + *bufp, ds, scn, ostype, tx); + } + } else if (BP_GET_TYPE(bp) == DMU_OT_USERGROUP_USED) { + uint32_t flags = ARC_WAIT; + + err = arc_read_nolock(NULL, dp->dp_spa, bp, + arc_getbuf_func, bufp, + ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); + if (err) { + scn->scn_phys.scn_errors++; + return (err); + } + } else if (BP_GET_TYPE(bp) == DMU_OT_DNODE) { + uint32_t flags = ARC_WAIT; + dnode_phys_t *cdnp; + int i, j; + int epb = BP_GET_LSIZE(bp) >> DNODE_SHIFT; + + err = arc_read_nolock(NULL, dp->dp_spa, bp, + arc_getbuf_func, bufp, + ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); + if (err) { + scn->scn_phys.scn_errors++; + return (err); + } + for (i = 0, cdnp = (*bufp)->b_data; i < epb; i++, cdnp++) { + for (j = 0; j < cdnp->dn_nblkptr; j++) { + blkptr_t *cbp = &cdnp->dn_blkptr[j]; + dsl_scan_prefetch(scn, *bufp, cbp, + zb->zb_objset, zb->zb_blkid * epb + i, j); + } + } + for (i = 0, cdnp = (*bufp)->b_data; i < epb; i++, cdnp++) { + dsl_scan_visitdnode(scn, ds, ostype, + cdnp, *bufp, zb->zb_blkid * epb + i, tx); + } + + } else if (BP_GET_TYPE(bp) == DMU_OT_OBJSET) { + uint32_t flags = ARC_WAIT; + objset_phys_t *osp; + + err = arc_read_nolock(NULL, dp->dp_spa, bp, + arc_getbuf_func, bufp, + ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); + if (err) { + scn->scn_phys.scn_errors++; + return (err); + } + + osp = (*bufp)->b_data; + + if (DSL_SCAN_IS_SCRUB_RESILVER(scn)) + dsl_scan_zil(dp, &osp->os_zil_header); + + dsl_scan_visitdnode(scn, ds, osp->os_type, + &osp->os_meta_dnode, *bufp, DMU_META_DNODE_OBJECT, tx); + + if (OBJSET_BUF_HAS_USERUSED(*bufp)) { + /* + * We also always visit user/group accounting + * objects, and never skip them, even if we are + * pausing. This is necessary so that the space + * deltas from this txg get integrated. + */ + dsl_scan_visitdnode(scn, ds, osp->os_type, + &osp->os_groupused_dnode, *bufp, + DMU_GROUPUSED_OBJECT, tx); + dsl_scan_visitdnode(scn, ds, osp->os_type, + &osp->os_userused_dnode, *bufp, + DMU_USERUSED_OBJECT, tx); + } + } + + return (0); +} + +static void +dsl_scan_visitdnode(dsl_scan_t *scn, dsl_dataset_t *ds, + dmu_objset_type_t ostype, dnode_phys_t *dnp, arc_buf_t *buf, + uint64_t object, dmu_tx_t *tx) +{ + int j; + + for (j = 0; j < dnp->dn_nblkptr; j++) { + zbookmark_t czb; + + SET_BOOKMARK(&czb, ds ? ds->ds_object : 0, object, + dnp->dn_nlevels - 1, j); + dsl_scan_visitbp(&dnp->dn_blkptr[j], + &czb, dnp, buf, ds, scn, ostype, tx); + } + + if (dnp->dn_flags & DNODE_FLAG_SPILL_BLKPTR) { + zbookmark_t czb; + SET_BOOKMARK(&czb, ds ? ds->ds_object : 0, object, + 0, DMU_SPILL_BLKID); + dsl_scan_visitbp(&dnp->dn_spill, + &czb, dnp, buf, ds, scn, ostype, tx); + } +} + +/* + * The arguments are in this order because mdb can only print the + * first 5; we want them to be useful. + */ +static void +dsl_scan_visitbp(blkptr_t *bp, const zbookmark_t *zb, + dnode_phys_t *dnp, arc_buf_t *pbuf, + dsl_dataset_t *ds, dsl_scan_t *scn, dmu_objset_type_t ostype, + dmu_tx_t *tx) +{ + dsl_pool_t *dp = scn->scn_dp; + arc_buf_t *buf = NULL; + blkptr_t bp_toread = *bp; + + /* ASSERT(pbuf == NULL || arc_released(pbuf)); */ + + if (dsl_scan_check_pause(scn, zb)) + return; + + if (dsl_scan_check_resume(scn, dnp, zb)) + return; + + if (bp->blk_birth == 0) + return; + + scn->scn_visited_this_txg++; + + dprintf_bp(bp, + "visiting ds=%p/%llu zb=%llx/%llx/%llx/%llx buf=%p bp=%p", + ds, ds ? ds->ds_object : 0, + zb->zb_objset, zb->zb_object, zb->zb_level, zb->zb_blkid, + pbuf, bp); + + if (bp->blk_birth <= scn->scn_phys.scn_cur_min_txg) + return; + + if (BP_GET_TYPE(bp) != DMU_OT_USERGROUP_USED) { + /* + * For non-user-accounting blocks, we need to read the + * new bp (from a deleted snapshot, found in + * check_existing_xlation). If we used the old bp, + * pointers inside this block from before we resumed + * would be untranslated. + * + * For user-accounting blocks, we need to read the old + * bp, because we will apply the entire space delta to + * it (original untranslated -> translations from + * deleted snap -> now). + */ + bp_toread = *bp; + } + + if (dsl_scan_recurse(scn, ds, ostype, dnp, &bp_toread, zb, tx, + &buf) != 0) + return; + + /* + * If dsl_scan_ddt() has aready visited this block, it will have + * already done any translations or scrubbing, so don't call the + * callback again. + */ + if (ddt_class_contains(dp->dp_spa, + scn->scn_phys.scn_ddt_class_max, bp)) { + ASSERT(buf == NULL); + return; + } + + /* + * If this block is from the future (after cur_max_txg), then we + * are doing this on behalf of a deleted snapshot, and we will + * revisit the future block on the next pass of this dataset. + * Don't scan it now unless we need to because something + * under it was modified. + */ + if (bp->blk_birth <= scn->scn_phys.scn_cur_max_txg) { + scan_funcs[scn->scn_phys.scn_func](dp, bp, zb); + } + if (buf) + (void) arc_buf_remove_ref(buf, &buf); +} + +static void +dsl_scan_visit_rootbp(dsl_scan_t *scn, dsl_dataset_t *ds, blkptr_t *bp, + dmu_tx_t *tx) +{ + zbookmark_t zb; + + SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET, + ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); + dsl_scan_visitbp(bp, &zb, NULL, NULL, + ds, scn, DMU_OST_NONE, tx); + + dprintf_ds(ds, "finished scan%s", ""); +} + +void +dsl_scan_ds_destroyed(dsl_dataset_t *ds, dmu_tx_t *tx) +{ + dsl_pool_t *dp = ds->ds_dir->dd_pool; + dsl_scan_t *scn = dp->dp_scan; + uint64_t mintxg; + + if (scn->scn_phys.scn_state != DSS_SCANNING) + return; + + if (scn->scn_phys.scn_bookmark.zb_objset == ds->ds_object) { + if (dsl_dataset_is_snapshot(ds)) { + /* Note, scn_cur_{min,max}_txg stays the same. */ + scn->scn_phys.scn_bookmark.zb_objset = + ds->ds_phys->ds_next_snap_obj; + zfs_dbgmsg("destroying ds %llu; currently traversing; " + "reset zb_objset to %llu", + (u_longlong_t)ds->ds_object, + (u_longlong_t)ds->ds_phys->ds_next_snap_obj); + scn->scn_phys.scn_flags |= DSF_VISIT_DS_AGAIN; + } else { + SET_BOOKMARK(&scn->scn_phys.scn_bookmark, + ZB_DESTROYED_OBJSET, 0, 0, 0); + zfs_dbgmsg("destroying ds %llu; currently traversing; " + "reset bookmark to -1,0,0,0", + (u_longlong_t)ds->ds_object); + } + } else if (zap_lookup_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds->ds_object, &mintxg) == 0) { + ASSERT3U(ds->ds_phys->ds_num_children, <=, 1); + VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds->ds_object, tx)); + if (dsl_dataset_is_snapshot(ds)) { + /* + * We keep the same mintxg; it could be > + * ds_creation_txg if the previous snapshot was + * deleted too. + */ + VERIFY(zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, + ds->ds_phys->ds_next_snap_obj, mintxg, tx) == 0); + zfs_dbgmsg("destroying ds %llu; in queue; " + "replacing with %llu", + (u_longlong_t)ds->ds_object, + (u_longlong_t)ds->ds_phys->ds_next_snap_obj); + } else { + zfs_dbgmsg("destroying ds %llu; in queue; removing", + (u_longlong_t)ds->ds_object); + } + } else { + zfs_dbgmsg("destroying ds %llu; ignoring", + (u_longlong_t)ds->ds_object); + } + + /* + * dsl_scan_sync() should be called after this, and should sync + * out our changed state, but just to be safe, do it here. + */ + dsl_scan_sync_state(scn, tx); +} + +void +dsl_scan_ds_snapshotted(dsl_dataset_t *ds, dmu_tx_t *tx) +{ + dsl_pool_t *dp = ds->ds_dir->dd_pool; + dsl_scan_t *scn = dp->dp_scan; + uint64_t mintxg; + + if (scn->scn_phys.scn_state != DSS_SCANNING) + return; + + ASSERT(ds->ds_phys->ds_prev_snap_obj != 0); + + if (scn->scn_phys.scn_bookmark.zb_objset == ds->ds_object) { + scn->scn_phys.scn_bookmark.zb_objset = + ds->ds_phys->ds_prev_snap_obj; + zfs_dbgmsg("snapshotting ds %llu; currently traversing; " + "reset zb_objset to %llu", + (u_longlong_t)ds->ds_object, + (u_longlong_t)ds->ds_phys->ds_prev_snap_obj); + } else if (zap_lookup_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds->ds_object, &mintxg) == 0) { + VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds->ds_object, tx)); + VERIFY(zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, + ds->ds_phys->ds_prev_snap_obj, mintxg, tx) == 0); + zfs_dbgmsg("snapshotting ds %llu; in queue; " + "replacing with %llu", + (u_longlong_t)ds->ds_object, + (u_longlong_t)ds->ds_phys->ds_prev_snap_obj); + } + dsl_scan_sync_state(scn, tx); +} + +void +dsl_scan_ds_clone_swapped(dsl_dataset_t *ds1, dsl_dataset_t *ds2, dmu_tx_t *tx) +{ + dsl_pool_t *dp = ds1->ds_dir->dd_pool; + dsl_scan_t *scn = dp->dp_scan; + uint64_t mintxg; + + if (scn->scn_phys.scn_state != DSS_SCANNING) + return; + + if (scn->scn_phys.scn_bookmark.zb_objset == ds1->ds_object) { + scn->scn_phys.scn_bookmark.zb_objset = ds2->ds_object; + zfs_dbgmsg("clone_swap ds %llu; currently traversing; " + "reset zb_objset to %llu", + (u_longlong_t)ds1->ds_object, + (u_longlong_t)ds2->ds_object); + } else if (scn->scn_phys.scn_bookmark.zb_objset == ds2->ds_object) { + scn->scn_phys.scn_bookmark.zb_objset = ds1->ds_object; + zfs_dbgmsg("clone_swap ds %llu; currently traversing; " + "reset zb_objset to %llu", + (u_longlong_t)ds2->ds_object, + (u_longlong_t)ds1->ds_object); + } + + if (zap_lookup_int_key(dp->dp_meta_objset, scn->scn_phys.scn_queue_obj, + ds1->ds_object, &mintxg) == 0) { + int err; + + ASSERT3U(mintxg, ==, ds1->ds_phys->ds_prev_snap_txg); + ASSERT3U(mintxg, ==, ds2->ds_phys->ds_prev_snap_txg); + VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds1->ds_object, tx)); + err = zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds2->ds_object, mintxg, tx); + VERIFY(err == 0 || err == EEXIST); + if (err == EEXIST) { + /* Both were there to begin with */ + VERIFY(0 == zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, + ds1->ds_object, mintxg, tx)); + } + zfs_dbgmsg("clone_swap ds %llu; in queue; " + "replacing with %llu", + (u_longlong_t)ds1->ds_object, + (u_longlong_t)ds2->ds_object); + } else if (zap_lookup_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds2->ds_object, &mintxg) == 0) { + ASSERT3U(mintxg, ==, ds1->ds_phys->ds_prev_snap_txg); + ASSERT3U(mintxg, ==, ds2->ds_phys->ds_prev_snap_txg); + VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds2->ds_object, tx)); + VERIFY(0 == zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds1->ds_object, mintxg, tx)); + zfs_dbgmsg("clone_swap ds %llu; in queue; " + "replacing with %llu", + (u_longlong_t)ds2->ds_object, + (u_longlong_t)ds1->ds_object); + } + + dsl_scan_sync_state(scn, tx); +} + +struct enqueue_clones_arg { + dmu_tx_t *tx; + uint64_t originobj; +}; + +/* ARGSUSED */ +static int +enqueue_clones_cb(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) +{ + struct enqueue_clones_arg *eca = arg; + dsl_dataset_t *ds; + int err; + dsl_pool_t *dp = spa->spa_dsl_pool; + dsl_scan_t *scn = dp->dp_scan; + + err = dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds); + if (err) + return (err); + + if (ds->ds_dir->dd_phys->dd_origin_obj == eca->originobj) { + while (ds->ds_phys->ds_prev_snap_obj != eca->originobj) { + dsl_dataset_t *prev; + err = dsl_dataset_hold_obj(dp, + ds->ds_phys->ds_prev_snap_obj, FTAG, &prev); + + dsl_dataset_rele(ds, FTAG); + if (err) + return (err); + ds = prev; + } + VERIFY(zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds->ds_object, + ds->ds_phys->ds_prev_snap_txg, eca->tx) == 0); + } + dsl_dataset_rele(ds, FTAG); + return (0); +} + +static void +dsl_scan_visitds(dsl_scan_t *scn, uint64_t dsobj, dmu_tx_t *tx) +{ + dsl_pool_t *dp = scn->scn_dp; + dsl_dataset_t *ds; + + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds)); + + /* + * Iterate over the bps in this ds. + */ + dmu_buf_will_dirty(ds->ds_dbuf, tx); + dsl_scan_visit_rootbp(scn, ds, &ds->ds_phys->ds_bp, tx); + + char *dsname = kmem_alloc(ZFS_MAXNAMELEN, KM_SLEEP); + dsl_dataset_name(ds, dsname); + zfs_dbgmsg("scanned dataset %llu (%s) with min=%llu max=%llu; " + "pausing=%u", + (longlong_t)dsobj, dsname, + (longlong_t)scn->scn_phys.scn_cur_min_txg, + (longlong_t)scn->scn_phys.scn_cur_max_txg, + (int)scn->scn_pausing); + kmem_free(dsname, ZFS_MAXNAMELEN); + + if (scn->scn_pausing) + goto out; + + /* + * We've finished this pass over this dataset. + */ + + /* + * If we did not completely visit this dataset, do another pass. + */ + if (scn->scn_phys.scn_flags & DSF_VISIT_DS_AGAIN) { + zfs_dbgmsg("incomplete pass; visiting again"); + scn->scn_phys.scn_flags &= ~DSF_VISIT_DS_AGAIN; + VERIFY(zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds->ds_object, + scn->scn_phys.scn_cur_max_txg, tx) == 0); + goto out; + } + + /* + * Add descendent datasets to work queue. + */ + if (ds->ds_phys->ds_next_snap_obj != 0) { + VERIFY(zap_add_int_key(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, ds->ds_phys->ds_next_snap_obj, + ds->ds_phys->ds_creation_txg, tx) == 0); + } + if (ds->ds_phys->ds_num_children > 1) { + boolean_t usenext = B_FALSE; + if (ds->ds_phys->ds_next_clones_obj != 0) { + uint64_t count; + /* + * A bug in a previous version of the code could + * cause upgrade_clones_cb() to not set + * ds_next_snap_obj when it should, leading to a + * missing entry. Therefore we can only use the + * next_clones_obj when its count is correct. + */ + int err = zap_count(dp->dp_meta_objset, + ds->ds_phys->ds_next_clones_obj, &count); + if (err == 0 && + count == ds->ds_phys->ds_num_children - 1) + usenext = B_TRUE; + } + + if (usenext) { + VERIFY(zap_join_key(dp->dp_meta_objset, + ds->ds_phys->ds_next_clones_obj, + scn->scn_phys.scn_queue_obj, + ds->ds_phys->ds_creation_txg, tx) == 0); + } else { + struct enqueue_clones_arg eca; + eca.tx = tx; + eca.originobj = ds->ds_object; + + (void) dmu_objset_find_spa(ds->ds_dir->dd_pool->dp_spa, + NULL, enqueue_clones_cb, &eca, DS_FIND_CHILDREN); + } + } + +out: + dsl_dataset_rele(ds, FTAG); +} + +/* ARGSUSED */ +static int +enqueue_cb(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) +{ + dmu_tx_t *tx = arg; + dsl_dataset_t *ds; + int err; + dsl_pool_t *dp = spa->spa_dsl_pool; + dsl_scan_t *scn = dp->dp_scan; + + err = dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds); + if (err) + return (err); + + while (ds->ds_phys->ds_prev_snap_obj != 0) { + dsl_dataset_t *prev; + err = dsl_dataset_hold_obj(dp, ds->ds_phys->ds_prev_snap_obj, + FTAG, &prev); + if (err) { + dsl_dataset_rele(ds, FTAG); + return (err); + } + + /* + * If this is a clone, we don't need to worry about it for now. + */ + if (prev->ds_phys->ds_next_snap_obj != ds->ds_object) { + dsl_dataset_rele(ds, FTAG); + dsl_dataset_rele(prev, FTAG); + return (0); + } + dsl_dataset_rele(ds, FTAG); + ds = prev; + } + + VERIFY(zap_add_int_key(dp->dp_meta_objset, scn->scn_phys.scn_queue_obj, + ds->ds_object, ds->ds_phys->ds_prev_snap_txg, tx) == 0); + dsl_dataset_rele(ds, FTAG); + return (0); +} + +/* + * Scrub/dedup interaction. + * + * If there are N references to a deduped block, we don't want to scrub it + * N times -- ideally, we should scrub it exactly once. + * + * We leverage the fact that the dde's replication class (enum ddt_class) + * is ordered from highest replication class (DDT_CLASS_DITTO) to lowest + * (DDT_CLASS_UNIQUE) so that we may walk the DDT in that order. + * + * To prevent excess scrubbing, the scrub begins by walking the DDT + * to find all blocks with refcnt > 1, and scrubs each of these once. + * Since there are two replication classes which contain blocks with + * refcnt > 1, we scrub the highest replication class (DDT_CLASS_DITTO) first. + * Finally the top-down scrub begins, only visiting blocks with refcnt == 1. + * + * There would be nothing more to say if a block's refcnt couldn't change + * during a scrub, but of course it can so we must account for changes + * in a block's replication class. + * + * Here's an example of what can occur: + * + * If a block has refcnt > 1 during the DDT scrub phase, but has refcnt == 1 + * when visited during the top-down scrub phase, it will be scrubbed twice. + * This negates our scrub optimization, but is otherwise harmless. + * + * If a block has refcnt == 1 during the DDT scrub phase, but has refcnt > 1 + * on each visit during the top-down scrub phase, it will never be scrubbed. + * To catch this, ddt_sync_entry() notifies the scrub code whenever a block's + * reference class transitions to a higher level (i.e DDT_CLASS_UNIQUE to + * DDT_CLASS_DUPLICATE); if it transitions from refcnt == 1 to refcnt > 1 + * while a scrub is in progress, it scrubs the block right then. + */ +static void +dsl_scan_ddt(dsl_scan_t *scn, dmu_tx_t *tx) +{ + ddt_bookmark_t *ddb = &scn->scn_phys.scn_ddt_bookmark; + ddt_entry_t dde = { 0 }; + int error; + uint64_t n = 0; + + while ((error = ddt_walk(scn->scn_dp->dp_spa, ddb, &dde)) == 0) { + ddt_t *ddt; + + if (ddb->ddb_class > scn->scn_phys.scn_ddt_class_max) + break; + dprintf("visiting ddb=%llu/%llu/%llu/%llx\n", + (longlong_t)ddb->ddb_class, + (longlong_t)ddb->ddb_type, + (longlong_t)ddb->ddb_checksum, + (longlong_t)ddb->ddb_cursor); + + /* There should be no pending changes to the dedup table */ + ddt = scn->scn_dp->dp_spa->spa_ddt[ddb->ddb_checksum]; + ASSERT(avl_first(&ddt->ddt_tree) == NULL); + + dsl_scan_ddt_entry(scn, ddb->ddb_checksum, &dde, tx); + n++; + + if (dsl_scan_check_pause(scn, NULL)) + break; + } + + zfs_dbgmsg("scanned %llu ddt entries with class_max = %u; pausing=%u", + (longlong_t)n, (int)scn->scn_phys.scn_ddt_class_max, + (int)scn->scn_pausing); + + ASSERT(error == 0 || error == ENOENT); + ASSERT(error != ENOENT || + ddb->ddb_class > scn->scn_phys.scn_ddt_class_max); +} + +/* ARGSUSED */ +void +dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum, + ddt_entry_t *dde, dmu_tx_t *tx) +{ + const ddt_key_t *ddk = &dde->dde_key; + ddt_phys_t *ddp = dde->dde_phys; + blkptr_t bp; + zbookmark_t zb = { 0 }; + + if (scn->scn_phys.scn_state != DSS_SCANNING) + return; + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { + if (ddp->ddp_phys_birth == 0 || + ddp->ddp_phys_birth > scn->scn_phys.scn_cur_max_txg) + continue; + ddt_bp_create(checksum, ddk, ddp, &bp); + + scn->scn_visited_this_txg++; + scan_funcs[scn->scn_phys.scn_func](scn->scn_dp, &bp, &zb); + } +} + +static void +dsl_scan_visit(dsl_scan_t *scn, dmu_tx_t *tx) +{ + dsl_pool_t *dp = scn->scn_dp; + zap_cursor_t zc; + zap_attribute_t za; + + if (scn->scn_phys.scn_ddt_bookmark.ddb_class <= + scn->scn_phys.scn_ddt_class_max) { + scn->scn_phys.scn_cur_min_txg = scn->scn_phys.scn_min_txg; + scn->scn_phys.scn_cur_max_txg = scn->scn_phys.scn_max_txg; + dsl_scan_ddt(scn, tx); + if (scn->scn_pausing) + return; + } + + if (scn->scn_phys.scn_bookmark.zb_objset == DMU_META_OBJSET) { + /* First do the MOS & ORIGIN */ + + scn->scn_phys.scn_cur_min_txg = scn->scn_phys.scn_min_txg; + scn->scn_phys.scn_cur_max_txg = scn->scn_phys.scn_max_txg; + dsl_scan_visit_rootbp(scn, NULL, + &dp->dp_meta_rootbp, tx); + spa_set_rootblkptr(dp->dp_spa, &dp->dp_meta_rootbp); + if (scn->scn_pausing) + return; + + if (spa_version(dp->dp_spa) < SPA_VERSION_DSL_SCRUB) { + VERIFY(0 == dmu_objset_find_spa(dp->dp_spa, + NULL, enqueue_cb, tx, DS_FIND_CHILDREN)); + } else { + dsl_scan_visitds(scn, + dp->dp_origin_snap->ds_object, tx); + } + ASSERT(!scn->scn_pausing); + } else if (scn->scn_phys.scn_bookmark.zb_objset != + ZB_DESTROYED_OBJSET) { + /* + * If we were paused, continue from here. Note if the + * ds we were paused on was deleted, the zb_objset may + * be -1, so we will skip this and find a new objset + * below. + */ + dsl_scan_visitds(scn, scn->scn_phys.scn_bookmark.zb_objset, tx); + if (scn->scn_pausing) + return; + } + + /* + * In case we were paused right at the end of the ds, zero the + * bookmark so we don't think that we're still trying to resume. + */ + bzero(&scn->scn_phys.scn_bookmark, sizeof (zbookmark_t)); + + /* keep pulling things out of the zap-object-as-queue */ + while (zap_cursor_init(&zc, dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj), + zap_cursor_retrieve(&zc, &za) == 0) { + dsl_dataset_t *ds; + uint64_t dsobj; + + dsobj = strtonum(za.za_name, NULL); + VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, + scn->scn_phys.scn_queue_obj, dsobj, tx)); + + /* Set up min/max txg */ + VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds)); + if (za.za_first_integer != 0) { + scn->scn_phys.scn_cur_min_txg = + MAX(scn->scn_phys.scn_min_txg, + za.za_first_integer); + } else { + scn->scn_phys.scn_cur_min_txg = + MAX(scn->scn_phys.scn_min_txg, + ds->ds_phys->ds_prev_snap_txg); + } + scn->scn_phys.scn_cur_max_txg = dsl_scan_ds_maxtxg(ds); + dsl_dataset_rele(ds, FTAG); + + dsl_scan_visitds(scn, dsobj, tx); + zap_cursor_fini(&zc); + if (scn->scn_pausing) + return; + } + zap_cursor_fini(&zc); +} + +static int +dsl_scan_free_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + dsl_scan_t *scn = arg; + uint64_t elapsed_nanosecs; + + elapsed_nanosecs = gethrtime() - scn->scn_sync_start_time; + + if (elapsed_nanosecs / NANOSEC > zfs_txg_timeout || + (elapsed_nanosecs / MICROSEC > zfs_free_min_time_ms && + txg_sync_waiting(scn->scn_dp)) || + spa_shutting_down(scn->scn_dp->dp_spa)) + return (ERESTART); + + zio_nowait(zio_free_sync(scn->scn_zio_root, scn->scn_dp->dp_spa, + dmu_tx_get_txg(tx), bp, 0)); + dsl_dir_diduse_space(tx->tx_pool->dp_free_dir, DD_USED_HEAD, + -bp_get_dsize_sync(scn->scn_dp->dp_spa, bp), + -BP_GET_PSIZE(bp), -BP_GET_UCSIZE(bp), tx); + scn->scn_visited_this_txg++; + return (0); +} + +boolean_t +dsl_scan_active(dsl_scan_t *scn) +{ + spa_t *spa = scn->scn_dp->dp_spa; + uint64_t used = 0, comp, uncomp; + + if (spa->spa_load_state != SPA_LOAD_NONE) + return (B_FALSE); + if (spa_shutting_down(spa)) + return (B_FALSE); + + if (scn->scn_phys.scn_state == DSS_SCANNING) + return (B_TRUE); + + if (spa_version(scn->scn_dp->dp_spa) >= SPA_VERSION_DEADLISTS) { + (void) bpobj_space(&scn->scn_dp->dp_free_bpobj, + &used, &comp, &uncomp); + } + return (used != 0); +} + +void +dsl_scan_sync(dsl_pool_t *dp, dmu_tx_t *tx) +{ + dsl_scan_t *scn = dp->dp_scan; + spa_t *spa = dp->dp_spa; + int err; + + /* + * Check for scn_restart_txg before checking spa_load_state, so + * that we can restart an old-style scan while the pool is being + * imported (see dsl_scan_init). + */ + if (scn->scn_restart_txg != 0 && + scn->scn_restart_txg <= tx->tx_txg) { + pool_scan_func_t func = POOL_SCAN_SCRUB; + dsl_scan_done(scn, B_FALSE, tx); + if (vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) + func = POOL_SCAN_RESILVER; + zfs_dbgmsg("restarting scan func=%u txg=%llu", + func, tx->tx_txg); + dsl_scan_setup_sync(scn, &func, tx); + } + + + if (!dsl_scan_active(scn) || + spa_sync_pass(dp->dp_spa) > 1) + return; + + scn->scn_visited_this_txg = 0; + scn->scn_pausing = B_FALSE; + scn->scn_sync_start_time = gethrtime(); + spa->spa_scrub_active = B_TRUE; + + /* + * First process the free list. If we pause the free, don't do + * any scanning. This ensures that there is no free list when + * we are scanning, so the scan code doesn't have to worry about + * traversing it. + */ + if (spa_version(dp->dp_spa) >= SPA_VERSION_DEADLISTS) { + scn->scn_zio_root = zio_root(dp->dp_spa, NULL, + NULL, ZIO_FLAG_MUSTSUCCEED); + err = bpobj_iterate(&dp->dp_free_bpobj, + dsl_scan_free_cb, scn, tx); + VERIFY3U(0, ==, zio_wait(scn->scn_zio_root)); + if (scn->scn_visited_this_txg) { + zfs_dbgmsg("freed %llu blocks in %llums from " + "free_bpobj txg %llu", + (longlong_t)scn->scn_visited_this_txg, + (longlong_t) + (gethrtime() - scn->scn_sync_start_time) / MICROSEC, + (longlong_t)tx->tx_txg); + scn->scn_visited_this_txg = 0; + /* + * Re-sync the ddt so that we can further modify + * it when doing bprewrite. + */ + ddt_sync(spa, tx->tx_txg); + } + if (err == ERESTART) + return; + } + + if (scn->scn_phys.scn_state != DSS_SCANNING) + return; + + + if (scn->scn_phys.scn_ddt_bookmark.ddb_class <= + scn->scn_phys.scn_ddt_class_max) { + zfs_dbgmsg("doing scan sync txg %llu; " + "ddt bm=%llu/%llu/%llu/%llx", + (longlong_t)tx->tx_txg, + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_class, + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_type, + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_checksum, + (longlong_t)scn->scn_phys.scn_ddt_bookmark.ddb_cursor); + ASSERT(scn->scn_phys.scn_bookmark.zb_objset == 0); + ASSERT(scn->scn_phys.scn_bookmark.zb_object == 0); + ASSERT(scn->scn_phys.scn_bookmark.zb_level == 0); + ASSERT(scn->scn_phys.scn_bookmark.zb_blkid == 0); + } else { + zfs_dbgmsg("doing scan sync txg %llu; bm=%llu/%llu/%llu/%llu", + (longlong_t)tx->tx_txg, + (longlong_t)scn->scn_phys.scn_bookmark.zb_objset, + (longlong_t)scn->scn_phys.scn_bookmark.zb_object, + (longlong_t)scn->scn_phys.scn_bookmark.zb_level, + (longlong_t)scn->scn_phys.scn_bookmark.zb_blkid); + } + + scn->scn_zio_root = zio_root(dp->dp_spa, NULL, + NULL, ZIO_FLAG_CANFAIL); + dsl_scan_visit(scn, tx); + (void) zio_wait(scn->scn_zio_root); + scn->scn_zio_root = NULL; + + zfs_dbgmsg("visited %llu blocks in %llums", + (longlong_t)scn->scn_visited_this_txg, + (longlong_t)(gethrtime() - scn->scn_sync_start_time) / MICROSEC); + + if (!scn->scn_pausing) { + /* finished with scan. */ + zfs_dbgmsg("finished scan txg %llu", (longlong_t)tx->tx_txg); + dsl_scan_done(scn, B_TRUE, tx); + } + + if (DSL_SCAN_IS_SCRUB_RESILVER(scn)) { + mutex_enter(&spa->spa_scrub_lock); + while (spa->spa_scrub_inflight > 0) { + cv_wait(&spa->spa_scrub_io_cv, + &spa->spa_scrub_lock); + } + mutex_exit(&spa->spa_scrub_lock); + } + + dsl_scan_sync_state(scn, tx); +} + +/* + * This will start a new scan, or restart an existing one. + */ +void +dsl_resilver_restart(dsl_pool_t *dp, uint64_t txg) +{ + if (txg == 0) { + dmu_tx_t *tx; + tx = dmu_tx_create_dd(dp->dp_mos_dir); + VERIFY(0 == dmu_tx_assign(tx, TXG_WAIT)); + + txg = dmu_tx_get_txg(tx); + dp->dp_scan->scn_restart_txg = txg; + dmu_tx_commit(tx); + } else { + dp->dp_scan->scn_restart_txg = txg; + } + zfs_dbgmsg("restarting resilver txg=%llu", txg); +} + +boolean_t +dsl_scan_resilvering(dsl_pool_t *dp) +{ + return (dp->dp_scan->scn_phys.scn_state == DSS_SCANNING && + dp->dp_scan->scn_phys.scn_func == POOL_SCAN_RESILVER); +} + +/* + * scrub consumers + */ + +static void +count_block(zfs_all_blkstats_t *zab, const blkptr_t *bp) +{ + int i; + + /* + * If we resume after a reboot, zab will be NULL; don't record + * incomplete stats in that case. + */ + if (zab == NULL) + return; + + for (i = 0; i < 4; i++) { + int l = (i < 2) ? BP_GET_LEVEL(bp) : DN_MAX_LEVELS; + int t = (i & 1) ? BP_GET_TYPE(bp) : DMU_OT_TOTAL; + zfs_blkstat_t *zb = &zab->zab_type[l][t]; + int equal; + + zb->zb_count++; + zb->zb_asize += BP_GET_ASIZE(bp); + zb->zb_lsize += BP_GET_LSIZE(bp); + zb->zb_psize += BP_GET_PSIZE(bp); + zb->zb_gangs += BP_COUNT_GANG(bp); + + switch (BP_GET_NDVAS(bp)) { + case 2: + if (DVA_GET_VDEV(&bp->blk_dva[0]) == + DVA_GET_VDEV(&bp->blk_dva[1])) + zb->zb_ditto_2_of_2_samevdev++; + break; + case 3: + equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == + DVA_GET_VDEV(&bp->blk_dva[1])) + + (DVA_GET_VDEV(&bp->blk_dva[0]) == + DVA_GET_VDEV(&bp->blk_dva[2])) + + (DVA_GET_VDEV(&bp->blk_dva[1]) == + DVA_GET_VDEV(&bp->blk_dva[2])); + if (equal == 1) + zb->zb_ditto_2_of_3_samevdev++; + else if (equal == 3) + zb->zb_ditto_3_of_3_samevdev++; + break; + } + } +} + +static void +dsl_scan_scrub_done(zio_t *zio) +{ + spa_t *spa = zio->io_spa; + + zio_data_buf_free(zio->io_data, zio->io_size); + + mutex_enter(&spa->spa_scrub_lock); + spa->spa_scrub_inflight--; + cv_broadcast(&spa->spa_scrub_io_cv); + + if (zio->io_error && (zio->io_error != ECKSUM || + !(zio->io_flags & ZIO_FLAG_SPECULATIVE))) { + spa->spa_dsl_pool->dp_scan->scn_phys.scn_errors++; + } + mutex_exit(&spa->spa_scrub_lock); +} + +static int +dsl_scan_scrub_cb(dsl_pool_t *dp, + const blkptr_t *bp, const zbookmark_t *zb) +{ + dsl_scan_t *scn = dp->dp_scan; + size_t size = BP_GET_PSIZE(bp); + spa_t *spa = dp->dp_spa; + uint64_t phys_birth = BP_PHYSICAL_BIRTH(bp); + boolean_t needs_io; + int zio_flags = ZIO_FLAG_SCRUB_THREAD | ZIO_FLAG_RAW | ZIO_FLAG_CANFAIL; + int zio_priority; + + if (phys_birth <= scn->scn_phys.scn_min_txg || + phys_birth >= scn->scn_phys.scn_max_txg) + return (0); + + count_block(dp->dp_blkstats, bp); + + ASSERT(DSL_SCAN_IS_SCRUB_RESILVER(scn)); + if (scn->scn_phys.scn_func == POOL_SCAN_SCRUB) { + zio_flags |= ZIO_FLAG_SCRUB; + zio_priority = ZIO_PRIORITY_SCRUB; + needs_io = B_TRUE; + } else if (scn->scn_phys.scn_func == POOL_SCAN_RESILVER) { + zio_flags |= ZIO_FLAG_RESILVER; + zio_priority = ZIO_PRIORITY_RESILVER; + needs_io = B_FALSE; + } + + /* If it's an intent log block, failure is expected. */ + if (zb->zb_level == ZB_ZIL_LEVEL) + zio_flags |= ZIO_FLAG_SPECULATIVE; + + for (int d = 0; d < BP_GET_NDVAS(bp); d++) { + vdev_t *vd = vdev_lookup_top(spa, + DVA_GET_VDEV(&bp->blk_dva[d])); + + /* + * Keep track of how much data we've examined so that + * zpool(1M) status can make useful progress reports. + */ + scn->scn_phys.scn_examined += DVA_GET_ASIZE(&bp->blk_dva[d]); + spa->spa_scan_pass_exam += DVA_GET_ASIZE(&bp->blk_dva[d]); + + /* if it's a resilver, this may not be in the target range */ + if (!needs_io) { + if (DVA_GET_GANG(&bp->blk_dva[d])) { + /* + * Gang members may be spread across multiple + * vdevs, so the best estimate we have is the + * scrub range, which has already been checked. + * XXX -- it would be better to change our + * allocation policy to ensure that all + * gang members reside on the same vdev. + */ + needs_io = B_TRUE; + } else { + needs_io = vdev_dtl_contains(vd, DTL_PARTIAL, + phys_birth, 1); + } + } + } + + if (needs_io && !zfs_no_scrub_io) { + void *data = zio_data_buf_alloc(size); + + mutex_enter(&spa->spa_scrub_lock); + while (spa->spa_scrub_inflight >= spa->spa_scrub_maxinflight) + cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); + spa->spa_scrub_inflight++; + mutex_exit(&spa->spa_scrub_lock); + + zio_nowait(zio_read(NULL, spa, bp, data, size, + dsl_scan_scrub_done, NULL, zio_priority, + zio_flags, zb)); + } + + /* do not relocate this block */ + return (0); +} + +int +dsl_scan(dsl_pool_t *dp, pool_scan_func_t func) +{ + spa_t *spa = dp->dp_spa; + + /* + * Purge all vdev caches and probe all devices. We do this here + * rather than in sync context because this requires a writer lock + * on the spa_config lock, which we can't do from sync context. The + * spa_scrub_reopen flag indicates that vdev_open() should not + * attempt to start another scrub. + */ + spa_vdev_state_enter(spa, SCL_NONE); + spa->spa_scrub_reopen = B_TRUE; + vdev_reopen(spa->spa_root_vdev); + spa->spa_scrub_reopen = B_FALSE; + (void) spa_vdev_state_exit(spa, NULL, 0); + + return (dsl_sync_task_do(dp, dsl_scan_setup_check, + dsl_scan_setup_sync, dp->dp_scan, &func, 0)); +} diff --git a/module/zfs/dsl_scrub.c b/module/zfs/dsl_scrub.c deleted file mode 100644 index 03ebb90bb..000000000 --- a/module/zfs/dsl_scrub.c +++ /dev/null @@ -1,1043 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#include <sys/dsl_pool.h> -#include <sys/dsl_dataset.h> -#include <sys/dsl_prop.h> -#include <sys/dsl_dir.h> -#include <sys/dsl_synctask.h> -#include <sys/dnode.h> -#include <sys/dmu_tx.h> -#include <sys/dmu_objset.h> -#include <sys/arc.h> -#include <sys/zap.h> -#include <sys/zio.h> -#include <sys/zfs_context.h> -#include <sys/fs/zfs.h> -#include <sys/zfs_znode.h> -#include <sys/spa_impl.h> -#include <sys/vdev_impl.h> -#include <sys/zil_impl.h> - -typedef int (scrub_cb_t)(dsl_pool_t *, const blkptr_t *, const zbookmark_t *); - -static scrub_cb_t dsl_pool_scrub_clean_cb; -static dsl_syncfunc_t dsl_pool_scrub_cancel_sync; -static void scrub_visitdnode(dsl_pool_t *dp, dnode_phys_t *dnp, arc_buf_t *buf, - uint64_t objset, uint64_t object); - -int zfs_scrub_min_time = 1; /* scrub for at least 1 sec each txg */ -int zfs_resilver_min_time = 3; /* resilver for at least 3 sec each txg */ -boolean_t zfs_no_scrub_io = B_FALSE; /* set to disable scrub i/o */ - -extern int zfs_txg_timeout; - -static scrub_cb_t *scrub_funcs[SCRUB_FUNC_NUMFUNCS] = { - NULL, - dsl_pool_scrub_clean_cb -}; - -#define SET_BOOKMARK(zb, objset, object, level, blkid) \ -{ \ - (zb)->zb_objset = objset; \ - (zb)->zb_object = object; \ - (zb)->zb_level = level; \ - (zb)->zb_blkid = blkid; \ -} - -/* ARGSUSED */ -static void -dsl_pool_scrub_setup_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) -{ - dsl_pool_t *dp = arg1; - enum scrub_func *funcp = arg2; - dmu_object_type_t ot = 0; - boolean_t complete = B_FALSE; - - dsl_pool_scrub_cancel_sync(dp, &complete, cr, tx); - - ASSERT(dp->dp_scrub_func == SCRUB_FUNC_NONE); - ASSERT(*funcp > SCRUB_FUNC_NONE); - ASSERT(*funcp < SCRUB_FUNC_NUMFUNCS); - - dp->dp_scrub_min_txg = 0; - dp->dp_scrub_max_txg = tx->tx_txg; - - if (*funcp == SCRUB_FUNC_CLEAN) { - vdev_t *rvd = dp->dp_spa->spa_root_vdev; - - /* rewrite all disk labels */ - vdev_config_dirty(rvd); - - if (vdev_resilver_needed(rvd, - &dp->dp_scrub_min_txg, &dp->dp_scrub_max_txg)) { - spa_event_notify(dp->dp_spa, NULL, - ESC_ZFS_RESILVER_START); - dp->dp_scrub_max_txg = MIN(dp->dp_scrub_max_txg, - tx->tx_txg); - } else { - spa_event_notify(dp->dp_spa, NULL, - ESC_ZFS_SCRUB_START); - } - - /* zero out the scrub stats in all vdev_stat_t's */ - vdev_scrub_stat_update(rvd, - dp->dp_scrub_min_txg ? POOL_SCRUB_RESILVER : - POOL_SCRUB_EVERYTHING, B_FALSE); - - dp->dp_spa->spa_scrub_started = B_TRUE; - } - - /* back to the generic stuff */ - - if (dp->dp_blkstats == NULL) { - dp->dp_blkstats = - kmem_alloc(sizeof (zfs_all_blkstats_t), KM_SLEEP); - } - bzero(dp->dp_blkstats, sizeof (zfs_all_blkstats_t)); - - if (spa_version(dp->dp_spa) < SPA_VERSION_DSL_SCRUB) - ot = DMU_OT_ZAP_OTHER; - - dp->dp_scrub_func = *funcp; - dp->dp_scrub_queue_obj = zap_create(dp->dp_meta_objset, - ot ? ot : DMU_OT_SCRUB_QUEUE, DMU_OT_NONE, 0, tx); - bzero(&dp->dp_scrub_bookmark, sizeof (zbookmark_t)); - dp->dp_scrub_restart = B_FALSE; - dp->dp_spa->spa_scrub_errors = 0; - - VERIFY(0 == zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_FUNC, sizeof (uint32_t), 1, - &dp->dp_scrub_func, tx)); - VERIFY(0 == zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_QUEUE, sizeof (uint64_t), 1, - &dp->dp_scrub_queue_obj, tx)); - VERIFY(0 == zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_MIN_TXG, sizeof (uint64_t), 1, - &dp->dp_scrub_min_txg, tx)); - VERIFY(0 == zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_MAX_TXG, sizeof (uint64_t), 1, - &dp->dp_scrub_max_txg, tx)); - VERIFY(0 == zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_BOOKMARK, sizeof (uint64_t), 4, - &dp->dp_scrub_bookmark, tx)); - VERIFY(0 == zap_add(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_ERRORS, sizeof (uint64_t), 1, - &dp->dp_spa->spa_scrub_errors, tx)); - - spa_history_internal_log(LOG_POOL_SCRUB, dp->dp_spa, tx, cr, - "func=%u mintxg=%llu maxtxg=%llu", - *funcp, dp->dp_scrub_min_txg, dp->dp_scrub_max_txg); -} - -int -dsl_pool_scrub_setup(dsl_pool_t *dp, enum scrub_func func) -{ - return (dsl_sync_task_do(dp, NULL, - dsl_pool_scrub_setup_sync, dp, &func, 0)); -} - -/* ARGSUSED */ -static void -dsl_pool_scrub_cancel_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) -{ - dsl_pool_t *dp = arg1; - boolean_t *completep = arg2; - - if (dp->dp_scrub_func == SCRUB_FUNC_NONE) - return; - - mutex_enter(&dp->dp_scrub_cancel_lock); - - if (dp->dp_scrub_restart) { - dp->dp_scrub_restart = B_FALSE; - *completep = B_FALSE; - } - - /* XXX this is scrub-clean specific */ - mutex_enter(&dp->dp_spa->spa_scrub_lock); - while (dp->dp_spa->spa_scrub_inflight > 0) { - cv_wait(&dp->dp_spa->spa_scrub_io_cv, - &dp->dp_spa->spa_scrub_lock); - } - mutex_exit(&dp->dp_spa->spa_scrub_lock); - dp->dp_spa->spa_scrub_started = B_FALSE; - dp->dp_spa->spa_scrub_active = B_FALSE; - - dp->dp_scrub_func = SCRUB_FUNC_NONE; - VERIFY(0 == dmu_object_free(dp->dp_meta_objset, - dp->dp_scrub_queue_obj, tx)); - dp->dp_scrub_queue_obj = 0; - bzero(&dp->dp_scrub_bookmark, sizeof (zbookmark_t)); - - VERIFY(0 == zap_remove(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_QUEUE, tx)); - VERIFY(0 == zap_remove(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_MIN_TXG, tx)); - VERIFY(0 == zap_remove(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_MAX_TXG, tx)); - VERIFY(0 == zap_remove(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_BOOKMARK, tx)); - VERIFY(0 == zap_remove(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_FUNC, tx)); - VERIFY(0 == zap_remove(dp->dp_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_ERRORS, tx)); - - spa_history_internal_log(LOG_POOL_SCRUB_DONE, dp->dp_spa, tx, cr, - "complete=%u", *completep); - - /* below is scrub-clean specific */ - vdev_scrub_stat_update(dp->dp_spa->spa_root_vdev, POOL_SCRUB_NONE, - *completep); - /* - * If the scrub/resilver completed, update all DTLs to reflect this. - * Whether it succeeded or not, vacate all temporary scrub DTLs. - */ - vdev_dtl_reassess(dp->dp_spa->spa_root_vdev, tx->tx_txg, - *completep ? dp->dp_scrub_max_txg : 0, B_TRUE); - if (*completep) - spa_event_notify(dp->dp_spa, NULL, dp->dp_scrub_min_txg ? - ESC_ZFS_RESILVER_FINISH : ESC_ZFS_SCRUB_FINISH); - spa_errlog_rotate(dp->dp_spa); - - /* - * We may have finished replacing a device. - * Let the async thread assess this and handle the detach. - */ - spa_async_request(dp->dp_spa, SPA_ASYNC_RESILVER_DONE); - - dp->dp_scrub_min_txg = dp->dp_scrub_max_txg = 0; - mutex_exit(&dp->dp_scrub_cancel_lock); -} - -int -dsl_pool_scrub_cancel(dsl_pool_t *dp) -{ - boolean_t complete = B_FALSE; - - return (dsl_sync_task_do(dp, NULL, - dsl_pool_scrub_cancel_sync, dp, &complete, 3)); -} - -int -dsl_free(zio_t *pio, dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp, - zio_done_func_t *done, void *private, uint32_t arc_flags) -{ - /* - * This function will be used by bp-rewrite wad to intercept frees. - */ - return (arc_free(pio, dp->dp_spa, txg, (blkptr_t *)bpp, - done, private, arc_flags)); -} - -static boolean_t -bookmark_is_zero(const zbookmark_t *zb) -{ - return (zb->zb_objset == 0 && zb->zb_object == 0 && - zb->zb_level == 0 && zb->zb_blkid == 0); -} - -/* dnp is the dnode for zb1->zb_object */ -static boolean_t -bookmark_is_before(dnode_phys_t *dnp, const zbookmark_t *zb1, - const zbookmark_t *zb2) -{ - uint64_t zb1nextL0, zb2thisobj; - - ASSERT(zb1->zb_objset == zb2->zb_objset); - ASSERT(zb1->zb_object != -1ULL); - ASSERT(zb2->zb_level == 0); - - /* - * A bookmark in the deadlist is considered to be after - * everything else. - */ - if (zb2->zb_object == -1ULL) - return (B_TRUE); - - /* The objset_phys_t isn't before anything. */ - if (dnp == NULL) - return (B_FALSE); - - zb1nextL0 = (zb1->zb_blkid + 1) << - ((zb1->zb_level) * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT)); - - zb2thisobj = zb2->zb_object ? zb2->zb_object : - zb2->zb_blkid << (DNODE_BLOCK_SHIFT - DNODE_SHIFT); - - if (zb1->zb_object == 0) { - uint64_t nextobj = zb1nextL0 * - (dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT) >> DNODE_SHIFT; - return (nextobj <= zb2thisobj); - } - - if (zb1->zb_object < zb2thisobj) - return (B_TRUE); - if (zb1->zb_object > zb2thisobj) - return (B_FALSE); - if (zb2->zb_object == 0) - return (B_FALSE); - return (zb1nextL0 <= zb2->zb_blkid); -} - -static boolean_t -scrub_pause(dsl_pool_t *dp, const zbookmark_t *zb) -{ - int elapsed_ticks; - int mintime; - - if (dp->dp_scrub_pausing) - return (B_TRUE); /* we're already pausing */ - - if (!bookmark_is_zero(&dp->dp_scrub_bookmark)) - return (B_FALSE); /* we're resuming */ - - /* We only know how to resume from level-0 blocks. */ - if (zb->zb_level != 0) - return (B_FALSE); - - mintime = dp->dp_scrub_isresilver ? zfs_resilver_min_time : - zfs_scrub_min_time; - elapsed_ticks = lbolt64 - dp->dp_scrub_start_time; - if (elapsed_ticks > hz * zfs_txg_timeout || - (elapsed_ticks > hz * mintime && txg_sync_waiting(dp))) { - dprintf("pausing at %llx/%llx/%llx/%llx\n", - (longlong_t)zb->zb_objset, (longlong_t)zb->zb_object, - (longlong_t)zb->zb_level, (longlong_t)zb->zb_blkid); - dp->dp_scrub_pausing = B_TRUE; - dp->dp_scrub_bookmark = *zb; - return (B_TRUE); - } - return (B_FALSE); -} - -typedef struct zil_traverse_arg { - dsl_pool_t *zta_dp; - zil_header_t *zta_zh; -} zil_traverse_arg_t; - -/* ARGSUSED */ -static void -traverse_zil_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg) -{ - zil_traverse_arg_t *zta = arg; - dsl_pool_t *dp = zta->zta_dp; - zil_header_t *zh = zta->zta_zh; - zbookmark_t zb; - - if (bp->blk_birth <= dp->dp_scrub_min_txg) - return; - - /* - * One block ("stubby") can be allocated a long time ago; we - * want to visit that one because it has been allocated - * (on-disk) even if it hasn't been claimed (even though for - * plain scrub there's nothing to do to it). - */ - if (claim_txg == 0 && bp->blk_birth >= spa_first_txg(dp->dp_spa)) - return; - - zb.zb_objset = zh->zh_log.blk_cksum.zc_word[ZIL_ZC_OBJSET]; - zb.zb_object = 0; - zb.zb_level = -1; - zb.zb_blkid = bp->blk_cksum.zc_word[ZIL_ZC_SEQ]; - VERIFY(0 == scrub_funcs[dp->dp_scrub_func](dp, bp, &zb)); -} - -/* ARGSUSED */ -static void -traverse_zil_record(zilog_t *zilog, lr_t *lrc, void *arg, uint64_t claim_txg) -{ - if (lrc->lrc_txtype == TX_WRITE) { - zil_traverse_arg_t *zta = arg; - dsl_pool_t *dp = zta->zta_dp; - zil_header_t *zh = zta->zta_zh; - lr_write_t *lr = (lr_write_t *)lrc; - blkptr_t *bp = &lr->lr_blkptr; - zbookmark_t zb; - - if (bp->blk_birth <= dp->dp_scrub_min_txg) - return; - - /* - * birth can be < claim_txg if this record's txg is - * already txg sync'ed (but this log block contains - * other records that are not synced) - */ - if (claim_txg == 0 || bp->blk_birth < claim_txg) - return; - - zb.zb_objset = zh->zh_log.blk_cksum.zc_word[ZIL_ZC_OBJSET]; - zb.zb_object = lr->lr_foid; - zb.zb_level = BP_GET_LEVEL(bp); - zb.zb_blkid = lr->lr_offset / BP_GET_LSIZE(bp); - VERIFY(0 == scrub_funcs[dp->dp_scrub_func](dp, bp, &zb)); - } -} - -static void -traverse_zil(dsl_pool_t *dp, zil_header_t *zh) -{ - uint64_t claim_txg = zh->zh_claim_txg; - zil_traverse_arg_t zta = { dp, zh }; - zilog_t *zilog; - - /* - * We only want to visit blocks that have been claimed but not yet - * replayed (or, in read-only mode, blocks that *would* be claimed). - */ - if (claim_txg == 0 && spa_writeable(dp->dp_spa)) - return; - - zilog = zil_alloc(dp->dp_meta_objset, zh); - - (void) zil_parse(zilog, traverse_zil_block, traverse_zil_record, &zta, - claim_txg); - - zil_free(zilog); -} - -static void -scrub_visitbp(dsl_pool_t *dp, dnode_phys_t *dnp, - arc_buf_t *pbuf, blkptr_t *bp, const zbookmark_t *zb) -{ - int err; - arc_buf_t *buf = NULL; - - if (bp->blk_birth <= dp->dp_scrub_min_txg) - return; - - if (scrub_pause(dp, zb)) - return; - - if (!bookmark_is_zero(&dp->dp_scrub_bookmark)) { - /* - * If we already visited this bp & everything below (in - * a prior txg), don't bother doing it again. - */ - if (bookmark_is_before(dnp, zb, &dp->dp_scrub_bookmark)) - return; - - /* - * If we found the block we're trying to resume from, or - * we went past it to a different object, zero it out to - * indicate that it's OK to start checking for pausing - * again. - */ - if (bcmp(zb, &dp->dp_scrub_bookmark, sizeof (*zb)) == 0 || - zb->zb_object > dp->dp_scrub_bookmark.zb_object) { - dprintf("resuming at %llx/%llx/%llx/%llx\n", - (longlong_t)zb->zb_objset, - (longlong_t)zb->zb_object, - (longlong_t)zb->zb_level, - (longlong_t)zb->zb_blkid); - bzero(&dp->dp_scrub_bookmark, sizeof (*zb)); - } - } - - if (BP_GET_LEVEL(bp) > 0) { - uint32_t flags = ARC_WAIT; - int i; - blkptr_t *cbp; - int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; - - err = arc_read(NULL, dp->dp_spa, bp, pbuf, - arc_getbuf_func, &buf, - ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); - if (err) { - mutex_enter(&dp->dp_spa->spa_scrub_lock); - dp->dp_spa->spa_scrub_errors++; - mutex_exit(&dp->dp_spa->spa_scrub_lock); - return; - } - cbp = buf->b_data; - - for (i = 0; i < epb; i++, cbp++) { - zbookmark_t czb; - - SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, - zb->zb_level - 1, - zb->zb_blkid * epb + i); - scrub_visitbp(dp, dnp, buf, cbp, &czb); - } - } else if (BP_GET_TYPE(bp) == DMU_OT_DNODE) { - uint32_t flags = ARC_WAIT; - dnode_phys_t *child_dnp; - int i; - int epb = BP_GET_LSIZE(bp) >> DNODE_SHIFT; - - err = arc_read(NULL, dp->dp_spa, bp, pbuf, - arc_getbuf_func, &buf, - ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); - if (err) { - mutex_enter(&dp->dp_spa->spa_scrub_lock); - dp->dp_spa->spa_scrub_errors++; - mutex_exit(&dp->dp_spa->spa_scrub_lock); - return; - } - child_dnp = buf->b_data; - - for (i = 0; i < epb; i++, child_dnp++) { - scrub_visitdnode(dp, child_dnp, buf, zb->zb_objset, - zb->zb_blkid * epb + i); - } - } else if (BP_GET_TYPE(bp) == DMU_OT_OBJSET) { - uint32_t flags = ARC_WAIT; - objset_phys_t *osp; - - err = arc_read_nolock(NULL, dp->dp_spa, bp, - arc_getbuf_func, &buf, - ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); - if (err) { - mutex_enter(&dp->dp_spa->spa_scrub_lock); - dp->dp_spa->spa_scrub_errors++; - mutex_exit(&dp->dp_spa->spa_scrub_lock); - return; - } - - osp = buf->b_data; - - traverse_zil(dp, &osp->os_zil_header); - - scrub_visitdnode(dp, &osp->os_meta_dnode, - buf, zb->zb_objset, 0); - if (arc_buf_size(buf) >= sizeof (objset_phys_t)) { - scrub_visitdnode(dp, &osp->os_userused_dnode, - buf, zb->zb_objset, 0); - scrub_visitdnode(dp, &osp->os_groupused_dnode, - buf, zb->zb_objset, 0); - } - } - - (void) scrub_funcs[dp->dp_scrub_func](dp, bp, zb); - if (buf) - (void) arc_buf_remove_ref(buf, &buf); -} - -static void -scrub_visitdnode(dsl_pool_t *dp, dnode_phys_t *dnp, arc_buf_t *buf, - uint64_t objset, uint64_t object) -{ - int j; - - for (j = 0; j < dnp->dn_nblkptr; j++) { - zbookmark_t czb; - - SET_BOOKMARK(&czb, objset, object, dnp->dn_nlevels - 1, j); - scrub_visitbp(dp, dnp, buf, &dnp->dn_blkptr[j], &czb); - } - -} - -static void -scrub_visit_rootbp(dsl_pool_t *dp, dsl_dataset_t *ds, blkptr_t *bp) -{ - zbookmark_t zb; - - SET_BOOKMARK(&zb, ds ? ds->ds_object : 0, 0, -1, 0); - scrub_visitbp(dp, NULL, NULL, bp, &zb); -} - -void -dsl_pool_ds_destroyed(dsl_dataset_t *ds, dmu_tx_t *tx) -{ - dsl_pool_t *dp = ds->ds_dir->dd_pool; - - if (dp->dp_scrub_func == SCRUB_FUNC_NONE) - return; - - if (dp->dp_scrub_bookmark.zb_objset == ds->ds_object) { - SET_BOOKMARK(&dp->dp_scrub_bookmark, -1, 0, 0, 0); - } else if (zap_remove_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds->ds_object, tx) != 0) { - return; - } - - if (ds->ds_phys->ds_next_snap_obj != 0) { - VERIFY(zap_add_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds->ds_phys->ds_next_snap_obj, tx) == 0); - } - ASSERT3U(ds->ds_phys->ds_num_children, <=, 1); -} - -void -dsl_pool_ds_snapshotted(dsl_dataset_t *ds, dmu_tx_t *tx) -{ - dsl_pool_t *dp = ds->ds_dir->dd_pool; - - if (dp->dp_scrub_func == SCRUB_FUNC_NONE) - return; - - ASSERT(ds->ds_phys->ds_prev_snap_obj != 0); - - if (dp->dp_scrub_bookmark.zb_objset == ds->ds_object) { - dp->dp_scrub_bookmark.zb_objset = - ds->ds_phys->ds_prev_snap_obj; - } else if (zap_remove_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds->ds_object, tx) == 0) { - VERIFY(zap_add_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds->ds_phys->ds_prev_snap_obj, tx) == 0); - } -} - -void -dsl_pool_ds_clone_swapped(dsl_dataset_t *ds1, dsl_dataset_t *ds2, dmu_tx_t *tx) -{ - dsl_pool_t *dp = ds1->ds_dir->dd_pool; - - if (dp->dp_scrub_func == SCRUB_FUNC_NONE) - return; - - if (dp->dp_scrub_bookmark.zb_objset == ds1->ds_object) { - dp->dp_scrub_bookmark.zb_objset = ds2->ds_object; - } else if (dp->dp_scrub_bookmark.zb_objset == ds2->ds_object) { - dp->dp_scrub_bookmark.zb_objset = ds1->ds_object; - } - - if (zap_remove_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds1->ds_object, tx) == 0) { - int err = zap_add_int(dp->dp_meta_objset, - dp->dp_scrub_queue_obj, ds2->ds_object, tx); - VERIFY(err == 0 || err == EEXIST); - if (err == EEXIST) { - /* Both were there to begin with */ - VERIFY(0 == zap_add_int(dp->dp_meta_objset, - dp->dp_scrub_queue_obj, ds1->ds_object, tx)); - } - } else if (zap_remove_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds2->ds_object, tx) == 0) { - VERIFY(0 == zap_add_int(dp->dp_meta_objset, - dp->dp_scrub_queue_obj, ds1->ds_object, tx)); - } -} - -struct enqueue_clones_arg { - dmu_tx_t *tx; - uint64_t originobj; -}; - -/* ARGSUSED */ -static int -enqueue_clones_cb(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) -{ - struct enqueue_clones_arg *eca = arg; - dsl_dataset_t *ds; - int err; - dsl_pool_t *dp; - - err = dsl_dataset_hold_obj(spa->spa_dsl_pool, dsobj, FTAG, &ds); - if (err) - return (err); - dp = ds->ds_dir->dd_pool; - - if (ds->ds_dir->dd_phys->dd_origin_obj == eca->originobj) { - while (ds->ds_phys->ds_prev_snap_obj != eca->originobj) { - dsl_dataset_t *prev; - err = dsl_dataset_hold_obj(dp, - ds->ds_phys->ds_prev_snap_obj, FTAG, &prev); - - dsl_dataset_rele(ds, FTAG); - if (err) - return (err); - ds = prev; - } - VERIFY(zap_add_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds->ds_object, eca->tx) == 0); - } - dsl_dataset_rele(ds, FTAG); - return (0); -} - -static void -scrub_visitds(dsl_pool_t *dp, uint64_t dsobj, dmu_tx_t *tx) -{ - dsl_dataset_t *ds; - uint64_t min_txg_save; - - VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds)); - - /* - * Iterate over the bps in this ds. - */ - min_txg_save = dp->dp_scrub_min_txg; - dp->dp_scrub_min_txg = - MAX(dp->dp_scrub_min_txg, ds->ds_phys->ds_prev_snap_txg); - scrub_visit_rootbp(dp, ds, &ds->ds_phys->ds_bp); - dp->dp_scrub_min_txg = min_txg_save; - - if (dp->dp_scrub_pausing) - goto out; - - /* - * Add descendent datasets to work queue. - */ - if (ds->ds_phys->ds_next_snap_obj != 0) { - VERIFY(zap_add_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds->ds_phys->ds_next_snap_obj, tx) == 0); - } - if (ds->ds_phys->ds_num_children > 1) { - if (spa_version(dp->dp_spa) < SPA_VERSION_DSL_SCRUB) { - struct enqueue_clones_arg eca; - eca.tx = tx; - eca.originobj = ds->ds_object; - - (void) dmu_objset_find_spa(ds->ds_dir->dd_pool->dp_spa, - NULL, enqueue_clones_cb, &eca, DS_FIND_CHILDREN); - } else { - VERIFY(zap_join(dp->dp_meta_objset, - ds->ds_phys->ds_next_clones_obj, - dp->dp_scrub_queue_obj, tx) == 0); - } - } - -out: - dsl_dataset_rele(ds, FTAG); -} - -/* ARGSUSED */ -static int -enqueue_cb(spa_t *spa, uint64_t dsobj, const char *dsname, void *arg) -{ - dmu_tx_t *tx = arg; - dsl_dataset_t *ds; - int err; - dsl_pool_t *dp; - - err = dsl_dataset_hold_obj(spa->spa_dsl_pool, dsobj, FTAG, &ds); - if (err) - return (err); - - dp = ds->ds_dir->dd_pool; - - while (ds->ds_phys->ds_prev_snap_obj != 0) { - dsl_dataset_t *prev; - err = dsl_dataset_hold_obj(dp, ds->ds_phys->ds_prev_snap_obj, - FTAG, &prev); - if (err) { - dsl_dataset_rele(ds, FTAG); - return (err); - } - - /* - * If this is a clone, we don't need to worry about it for now. - */ - if (prev->ds_phys->ds_next_snap_obj != ds->ds_object) { - dsl_dataset_rele(ds, FTAG); - dsl_dataset_rele(prev, FTAG); - return (0); - } - dsl_dataset_rele(ds, FTAG); - ds = prev; - } - - VERIFY(zap_add_int(dp->dp_meta_objset, dp->dp_scrub_queue_obj, - ds->ds_object, tx) == 0); - dsl_dataset_rele(ds, FTAG); - return (0); -} - -void -dsl_pool_scrub_sync(dsl_pool_t *dp, dmu_tx_t *tx) -{ - spa_t *spa = dp->dp_spa; - zap_cursor_t zc; - zap_attribute_t za; - boolean_t complete = B_TRUE; - - if (dp->dp_scrub_func == SCRUB_FUNC_NONE) - return; - - /* - * If the pool is not loaded, or is trying to unload, leave it alone. - */ - if (spa->spa_load_state != SPA_LOAD_NONE || spa_shutting_down(spa)) - return; - - if (dp->dp_scrub_restart) { - enum scrub_func func = dp->dp_scrub_func; - dp->dp_scrub_restart = B_FALSE; - dsl_pool_scrub_setup_sync(dp, &func, kcred, tx); - } - - if (spa->spa_root_vdev->vdev_stat.vs_scrub_type == 0) { - /* - * We must have resumed after rebooting; reset the vdev - * stats to know that we're doing a scrub (although it - * will think we're just starting now). - */ - vdev_scrub_stat_update(spa->spa_root_vdev, - dp->dp_scrub_min_txg ? POOL_SCRUB_RESILVER : - POOL_SCRUB_EVERYTHING, B_FALSE); - } - - dp->dp_scrub_pausing = B_FALSE; - dp->dp_scrub_start_time = lbolt64; - dp->dp_scrub_isresilver = (dp->dp_scrub_min_txg != 0); - spa->spa_scrub_active = B_TRUE; - - if (dp->dp_scrub_bookmark.zb_objset == 0) { - /* First do the MOS & ORIGIN */ - scrub_visit_rootbp(dp, NULL, &dp->dp_meta_rootbp); - if (dp->dp_scrub_pausing) - goto out; - - if (spa_version(spa) < SPA_VERSION_DSL_SCRUB) { - VERIFY(0 == dmu_objset_find_spa(spa, - NULL, enqueue_cb, tx, DS_FIND_CHILDREN)); - } else { - scrub_visitds(dp, dp->dp_origin_snap->ds_object, tx); - } - ASSERT(!dp->dp_scrub_pausing); - } else if (dp->dp_scrub_bookmark.zb_objset != -1ULL) { - /* - * If we were paused, continue from here. Note if the - * ds we were paused on was deleted, the zb_objset will - * be -1, so we will skip this and find a new objset - * below. - */ - scrub_visitds(dp, dp->dp_scrub_bookmark.zb_objset, tx); - if (dp->dp_scrub_pausing) - goto out; - } - - /* - * In case we were paused right at the end of the ds, zero the - * bookmark so we don't think that we're still trying to resume. - */ - bzero(&dp->dp_scrub_bookmark, sizeof (zbookmark_t)); - - /* keep pulling things out of the zap-object-as-queue */ - while (zap_cursor_init(&zc, dp->dp_meta_objset, dp->dp_scrub_queue_obj), - zap_cursor_retrieve(&zc, &za) == 0) { - VERIFY(0 == zap_remove(dp->dp_meta_objset, - dp->dp_scrub_queue_obj, za.za_name, tx)); - scrub_visitds(dp, za.za_first_integer, tx); - if (dp->dp_scrub_pausing) - break; - zap_cursor_fini(&zc); - } - zap_cursor_fini(&zc); - if (dp->dp_scrub_pausing) - goto out; - - /* done. */ - - dsl_pool_scrub_cancel_sync(dp, &complete, kcred, tx); - return; -out: - VERIFY(0 == zap_update(dp->dp_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_BOOKMARK, sizeof (uint64_t), 4, - &dp->dp_scrub_bookmark, tx)); - VERIFY(0 == zap_update(dp->dp_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SCRUB_ERRORS, sizeof (uint64_t), 1, - &spa->spa_scrub_errors, tx)); - - /* XXX this is scrub-clean specific */ - mutex_enter(&spa->spa_scrub_lock); - while (spa->spa_scrub_inflight > 0) - cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); - mutex_exit(&spa->spa_scrub_lock); -} - -void -dsl_pool_scrub_restart(dsl_pool_t *dp) -{ - mutex_enter(&dp->dp_scrub_cancel_lock); - dp->dp_scrub_restart = B_TRUE; - mutex_exit(&dp->dp_scrub_cancel_lock); -} - -/* - * scrub consumers - */ - -static void -count_block(zfs_all_blkstats_t *zab, const blkptr_t *bp) -{ - int i; - - /* - * If we resume after a reboot, zab will be NULL; don't record - * incomplete stats in that case. - */ - if (zab == NULL) - return; - - for (i = 0; i < 4; i++) { - int l = (i < 2) ? BP_GET_LEVEL(bp) : DN_MAX_LEVELS; - int t = (i & 1) ? BP_GET_TYPE(bp) : DMU_OT_TOTAL; - zfs_blkstat_t *zb = &zab->zab_type[l][t]; - int equal; - - zb->zb_count++; - zb->zb_asize += BP_GET_ASIZE(bp); - zb->zb_lsize += BP_GET_LSIZE(bp); - zb->zb_psize += BP_GET_PSIZE(bp); - zb->zb_gangs += BP_COUNT_GANG(bp); - - switch (BP_GET_NDVAS(bp)) { - case 2: - if (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[1])) - zb->zb_ditto_2_of_2_samevdev++; - break; - case 3: - equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[1])) + - (DVA_GET_VDEV(&bp->blk_dva[0]) == - DVA_GET_VDEV(&bp->blk_dva[2])) + - (DVA_GET_VDEV(&bp->blk_dva[1]) == - DVA_GET_VDEV(&bp->blk_dva[2])); - if (equal == 1) - zb->zb_ditto_2_of_3_samevdev++; - else if (equal == 3) - zb->zb_ditto_3_of_3_samevdev++; - break; - } - } -} - -static void -dsl_pool_scrub_clean_done(zio_t *zio) -{ - spa_t *spa = zio->io_spa; - - zio_data_buf_free(zio->io_data, zio->io_size); - - mutex_enter(&spa->spa_scrub_lock); - spa->spa_scrub_inflight--; - cv_broadcast(&spa->spa_scrub_io_cv); - - if (zio->io_error && (zio->io_error != ECKSUM || - !(zio->io_flags & ZIO_FLAG_SPECULATIVE))) - spa->spa_scrub_errors++; - mutex_exit(&spa->spa_scrub_lock); -} - -static int -dsl_pool_scrub_clean_cb(dsl_pool_t *dp, - const blkptr_t *bp, const zbookmark_t *zb) -{ - size_t size = BP_GET_PSIZE(bp); - spa_t *spa = dp->dp_spa; - boolean_t needs_io; - int zio_flags = ZIO_FLAG_SCRUB_THREAD | ZIO_FLAG_RAW | ZIO_FLAG_CANFAIL; - int zio_priority; - - ASSERT(bp->blk_birth > dp->dp_scrub_min_txg); - - if (bp->blk_birth >= dp->dp_scrub_max_txg) - return (0); - - count_block(dp->dp_blkstats, bp); - - if (dp->dp_scrub_isresilver == 0) { - /* It's a scrub */ - zio_flags |= ZIO_FLAG_SCRUB; - zio_priority = ZIO_PRIORITY_SCRUB; - needs_io = B_TRUE; - } else { - /* It's a resilver */ - zio_flags |= ZIO_FLAG_RESILVER; - zio_priority = ZIO_PRIORITY_RESILVER; - needs_io = B_FALSE; - } - - /* If it's an intent log block, failure is expected. */ - if (zb->zb_level == -1 && BP_GET_TYPE(bp) != DMU_OT_OBJSET) - zio_flags |= ZIO_FLAG_SPECULATIVE; - - for (int d = 0; d < BP_GET_NDVAS(bp); d++) { - vdev_t *vd = vdev_lookup_top(spa, - DVA_GET_VDEV(&bp->blk_dva[d])); - - /* - * Keep track of how much data we've examined so that - * zpool(1M) status can make useful progress reports. - */ - mutex_enter(&vd->vdev_stat_lock); - vd->vdev_stat.vs_scrub_examined += - DVA_GET_ASIZE(&bp->blk_dva[d]); - mutex_exit(&vd->vdev_stat_lock); - - /* if it's a resilver, this may not be in the target range */ - if (!needs_io) { - if (DVA_GET_GANG(&bp->blk_dva[d])) { - /* - * Gang members may be spread across multiple - * vdevs, so the best estimate we have is the - * scrub range, which has already been checked. - * XXX -- it would be better to change our - * allocation policy to ensure that all - * gang members reside on the same vdev. - */ - needs_io = B_TRUE; - } else { - needs_io = vdev_dtl_contains(vd, DTL_PARTIAL, - bp->blk_birth, 1); - } - } - } - - if (needs_io && !zfs_no_scrub_io) { - void *data = zio_data_buf_alloc(size); - - mutex_enter(&spa->spa_scrub_lock); - while (spa->spa_scrub_inflight >= spa->spa_scrub_maxinflight) - cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); - spa->spa_scrub_inflight++; - mutex_exit(&spa->spa_scrub_lock); - - zio_nowait(zio_read(NULL, spa, bp, data, size, - dsl_pool_scrub_clean_done, NULL, zio_priority, - zio_flags, zb)); - } - - /* do not relocate this block */ - return (0); -} - -int -dsl_pool_scrub_clean(dsl_pool_t *dp) -{ - spa_t *spa = dp->dp_spa; - - /* - * Purge all vdev caches. We do this here rather than in sync - * context because this requires a writer lock on the spa_config - * lock, which we can't do from sync context. The - * spa_scrub_reopen flag indicates that vdev_open() should not - * attempt to start another scrub. - */ - spa_vdev_state_enter(spa); - spa->spa_scrub_reopen = B_TRUE; - vdev_reopen(spa->spa_root_vdev); - spa->spa_scrub_reopen = B_FALSE; - (void) spa_vdev_state_exit(spa, NULL, 0); - - return (dsl_pool_scrub_setup(dp, SCRUB_FUNC_CLEAN)); -} diff --git a/module/zfs/dsl_synctask.c b/module/zfs/dsl_synctask.c index 21100225a..832685b0f 100644 --- a/module/zfs/dsl_synctask.c +++ b/module/zfs/dsl_synctask.c @@ -19,18 +19,15 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/dmu.h> #include <sys/dmu_tx.h> #include <sys/dsl_pool.h> #include <sys/dsl_dir.h> #include <sys/dsl_synctask.h> -#include <sys/cred.h> +#include <sys/metaslab.h> #define DST_AVG_BLKSHIFT 14 @@ -50,7 +47,6 @@ dsl_sync_task_group_create(dsl_pool_t *dp) list_create(&dstg->dstg_tasks, sizeof (dsl_sync_task_t), offsetof(dsl_sync_task_t, dst_node)); dstg->dstg_pool = dp; - dstg->dstg_cr = CRED(); return (dstg); } @@ -112,14 +108,21 @@ top: return (dstg->dstg_err); } - VERIFY(0 == txg_list_add(&dstg->dstg_pool->dp_sync_tasks, dstg, txg)); + /* + * We don't generally have many sync tasks, so pay the price of + * add_tail to get the tasks executed in the right order. + */ + VERIFY(0 == txg_list_add_tail(&dstg->dstg_pool->dp_sync_tasks, + dstg, txg)); dmu_tx_commit(tx); txg_wait_synced(dstg->dstg_pool, txg); - if (dstg->dstg_err == EAGAIN) + if (dstg->dstg_err == EAGAIN) { + txg_wait_synced(dstg->dstg_pool, txg + TXG_DEFER_SIZE); goto top; + } return (dstg->dstg_err); } @@ -131,7 +134,12 @@ dsl_sync_task_group_nowait(dsl_sync_task_group_t *dstg, dmu_tx_t *tx) dstg->dstg_nowaiter = B_TRUE; txg = dmu_tx_get_txg(tx); - VERIFY(0 == txg_list_add(&dstg->dstg_pool->dp_sync_tasks, dstg, txg)); + /* + * We don't generally have many sync tasks, so pay the price of + * add_tail to get the tasks executed in the right order. + */ + VERIFY(0 == txg_list_add_tail(&dstg->dstg_pool->dp_sync_tasks, + dstg, txg)); } void @@ -150,25 +158,30 @@ void dsl_sync_task_group_sync(dsl_sync_task_group_t *dstg, dmu_tx_t *tx) { dsl_sync_task_t *dst; - void *tr_cookie; + dsl_pool_t *dp = dstg->dstg_pool; + uint64_t quota, used; ASSERT3U(dstg->dstg_err, ==, 0); /* - * Check for sufficient space. + * Check for sufficient space. We just check against what's + * on-disk; we don't want any in-flight accounting to get in our + * way, because open context may have already used up various + * in-core limits (arc_tempreserve, dsl_pool_tempreserve). */ - dstg->dstg_err = dsl_dir_tempreserve_space(dstg->dstg_pool->dp_mos_dir, - dstg->dstg_space, dstg->dstg_space * 3, 0, 0, &tr_cookie, tx); - /* don't bother trying again */ - if (dstg->dstg_err == ERESTART) - dstg->dstg_err = EAGAIN; - if (dstg->dstg_err) + quota = dsl_pool_adjustedsize(dp, B_FALSE) - + metaslab_class_get_deferred(spa_normal_class(dp->dp_spa)); + used = dp->dp_root_dir->dd_phys->dd_used_bytes; + /* MOS space is triple-dittoed, so we multiply by 3. */ + if (dstg->dstg_space > 0 && used + dstg->dstg_space * 3 > quota) { + dstg->dstg_err = ENOSPC; return; + } /* * Check for errors by calling checkfuncs. */ - rw_enter(&dstg->dstg_pool->dp_config_rwlock, RW_WRITER); + rw_enter(&dp->dp_config_rwlock, RW_WRITER); for (dst = list_head(&dstg->dstg_tasks); dst; dst = list_next(&dstg->dstg_tasks, dst)) { dst->dst_err = @@ -183,13 +196,10 @@ dsl_sync_task_group_sync(dsl_sync_task_group_t *dstg, dmu_tx_t *tx) */ for (dst = list_head(&dstg->dstg_tasks); dst; dst = list_next(&dstg->dstg_tasks, dst)) { - dst->dst_syncfunc(dst->dst_arg1, dst->dst_arg2, - dstg->dstg_cr, tx); + dst->dst_syncfunc(dst->dst_arg1, dst->dst_arg2, tx); } } - rw_exit(&dstg->dstg_pool->dp_config_rwlock); - - dsl_dir_tempreserve_clear(tr_cookie, tx); + rw_exit(&dp->dp_config_rwlock); if (dstg->dstg_nowaiter) dsl_sync_task_group_destroy(dstg); diff --git a/module/zfs/fm.c b/module/zfs/fm.c index 3cc979d41..78943eda8 100644 --- a/module/zfs/fm.c +++ b/module/zfs/fm.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -94,6 +93,8 @@ static ulong_t ereport_qlen = 0; static size_t ereport_size = 0; static int ereport_cols = 80; +extern void fastreboot_disable_highpil(void); + /* * Common fault management kstats to record ereport generation * failures @@ -374,6 +375,9 @@ fm_panic(const char *format, ...) va_list ap; (void) casptr((void *)&fm_panicstr, NULL, (void *)format); +#if defined(__i386) || defined(__amd64) + fastreboot_disable_highpil(); +#endif /* __i386 || __amd64 */ va_start(ap, format); vpanic(format, ap); va_end(ap); @@ -512,10 +516,10 @@ fm_ereport_post(nvlist_t *ereport, int evc_flag) if (sysevent_evc_publish(error_chan, EC_FM, ESC_FM_ERROR, SUNW_VENDOR, FM_PUB, ereport, evc_flag) != 0) { atomic_add_64(&erpt_kstat_data.erpt_dropped.value.ui64, 1); - sysevent_evc_unbind(error_chan); + (void) sysevent_evc_unbind(error_chan); return; } - sysevent_evc_unbind(error_chan); + (void) sysevent_evc_unbind(error_chan); } /* @@ -788,6 +792,14 @@ fm_payload_set(nvlist_t *payload, ...) * detector nvlist_t <detector> * ereport-payload nvlist_t <var args> * + * We don't actually add a 'version' member to the payload. Really, + * the version quoted to us by our caller is that of the category 1 + * "ereport" event class (and we require FM_EREPORT_VERS0) but + * the payload version of the actual leaf class event under construction + * may be something else. Callers should supply a version in the varargs, + * or (better) we could take two version arguments - one for the + * ereport category 1 classification (expect FM_EREPORT_VERS0) and one + * for the leaf class. */ void fm_ereport_set(nvlist_t *ereport, int version, const char *erpt_class, @@ -920,46 +932,41 @@ fm_fmri_hc_set(nvlist_t *fmri, int version, const nvlist_t *auth, * version uint8_t 0 * auth nvlist_t <auth> * devpath string <devpath> - * devid string <devid> + * [devid] string <devid> + * [target-port-l0id] string <target-port-lun0-id> * * Note that auth and devid are optional members. */ void fm_fmri_dev_set(nvlist_t *fmri_dev, int version, const nvlist_t *auth, - const char *devpath, const char *devid) + const char *devpath, const char *devid, const char *tpl0) { + int err = 0; + if (version != DEV_SCHEME_VERSION0) { atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); return; } - if (nvlist_add_uint8(fmri_dev, FM_VERSION, version) != 0) { - atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); - return; - } - - if (nvlist_add_string(fmri_dev, FM_FMRI_SCHEME, - FM_FMRI_SCHEME_DEV) != 0) { - atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); - return; - } + err |= nvlist_add_uint8(fmri_dev, FM_VERSION, version); + err |= nvlist_add_string(fmri_dev, FM_FMRI_SCHEME, FM_FMRI_SCHEME_DEV); if (auth != NULL) { - if (nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY, - (nvlist_t *)auth) != 0) { - atomic_add_64( - &erpt_kstat_data.fmri_set_failed.value.ui64, 1); - } + err |= nvlist_add_nvlist(fmri_dev, FM_FMRI_AUTHORITY, + (nvlist_t *)auth); } - if (nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath) != 0) { - atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); - } + err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_PATH, devpath); if (devid != NULL) - if (nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid) != 0) - atomic_add_64( - &erpt_kstat_data.fmri_set_failed.value.ui64, 1); + err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_ID, devid); + + if (tpl0 != NULL) + err |= nvlist_add_string(fmri_dev, FM_FMRI_DEV_TGTPTLUN0, tpl0); + + if (err) + atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); + } /* @@ -1264,3 +1271,102 @@ print_msg_hwerr(ctid_t ct_id, proc_t *p) uprintf("Killed process %d (%s) in contract id %d " "due to hardware error\n", p->p_pid, p->p_user.u_comm, ct_id); } + +void +fm_fmri_hc_create(nvlist_t *fmri, int version, const nvlist_t *auth, + nvlist_t *snvl, nvlist_t *bboard, int npairs, ...) +{ + nv_alloc_t *nva = nvlist_lookup_nv_alloc(fmri); + nvlist_t *pairs[HC_MAXPAIRS]; + nvlist_t **hcl; + uint_t n; + int i, j; + va_list ap; + char *hcname, *hcid; + + if (!fm_fmri_hc_set_common(fmri, version, auth)) + return; + + /* + * copy the bboard nvpairs to the pairs array + */ + if (nvlist_lookup_nvlist_array(bboard, FM_FMRI_HC_LIST, &hcl, &n) + != 0) { + atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); + return; + } + + for (i = 0; i < n; i++) { + if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_NAME, + &hcname) != 0) { + atomic_add_64( + &erpt_kstat_data.fmri_set_failed.value.ui64, 1); + return; + } + if (nvlist_lookup_string(hcl[i], FM_FMRI_HC_ID, &hcid) != 0) { + atomic_add_64( + &erpt_kstat_data.fmri_set_failed.value.ui64, 1); + return; + } + + pairs[i] = fm_nvlist_create(nva); + if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, hcname) != 0 || + nvlist_add_string(pairs[i], FM_FMRI_HC_ID, hcid) != 0) { + for (j = 0; j <= i; j++) { + if (pairs[j] != NULL) + fm_nvlist_destroy(pairs[j], + FM_NVA_RETAIN); + } + atomic_add_64( + &erpt_kstat_data.fmri_set_failed.value.ui64, 1); + return; + } + } + + /* + * create the pairs from passed in pairs + */ + npairs = MIN(npairs, HC_MAXPAIRS); + + va_start(ap, npairs); + for (i = n; i < npairs + n; i++) { + const char *name = va_arg(ap, const char *); + uint32_t id = va_arg(ap, uint32_t); + char idstr[11]; + (void) snprintf(idstr, sizeof (idstr), "%u", id); + pairs[i] = fm_nvlist_create(nva); + if (nvlist_add_string(pairs[i], FM_FMRI_HC_NAME, name) != 0 || + nvlist_add_string(pairs[i], FM_FMRI_HC_ID, idstr) != 0) { + for (j = 0; j <= i; j++) { + if (pairs[j] != NULL) + fm_nvlist_destroy(pairs[j], + FM_NVA_RETAIN); + } + atomic_add_64( + &erpt_kstat_data.fmri_set_failed.value.ui64, 1); + return; + } + } + va_end(ap); + + /* + * Create the fmri hc list + */ + if (nvlist_add_nvlist_array(fmri, FM_FMRI_HC_LIST, pairs, + npairs + n) != 0) { + atomic_add_64(&erpt_kstat_data.fmri_set_failed.value.ui64, 1); + return; + } + + for (i = 0; i < npairs + n; i++) { + fm_nvlist_destroy(pairs[i], FM_NVA_RETAIN); + } + + if (snvl != NULL) { + if (nvlist_add_nvlist(fmri, FM_FMRI_HC_SPECIFIC, snvl) != 0) { + atomic_add_64( + &erpt_kstat_data.fmri_set_failed.value.ui64, 1); + return; + } + } +} diff --git a/module/zfs/include/sys/arc.h b/module/zfs/include/sys/arc.h index 6e5955b7c..8f189c62d 100644 --- a/module/zfs/include/sys/arc.h +++ b/module/zfs/include/sys/arc.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ARC_H @@ -48,7 +47,8 @@ arc_done_func_t arc_getbuf_func; struct arc_buf { arc_buf_hdr_t *b_hdr; arc_buf_t *b_next; - krwlock_t b_lock; + kmutex_t b_evict_lock; + krwlock_t b_data_lock; void *b_data; arc_evict_func_t *b_efunc; void *b_private; @@ -87,10 +87,13 @@ arc_buf_t *arc_buf_alloc(spa_t *spa, int size, void *tag, arc_buf_contents_t type); arc_buf_t *arc_loan_buf(spa_t *spa, int size); void arc_return_buf(arc_buf_t *buf, void *tag); +void arc_loan_inuse_buf(arc_buf_t *buf, void *tag); void arc_buf_add_ref(arc_buf_t *buf, void *tag); int arc_buf_remove_ref(arc_buf_t *buf, void *tag); int arc_buf_size(arc_buf_t *buf); void arc_release(arc_buf_t *buf, void *tag); +int arc_release_bp(arc_buf_t *buf, void *tag, blkptr_t *bp, spa_t *spa, + zbookmark_t *zb); int arc_released(arc_buf_t *buf); int arc_has_callback(arc_buf_t *buf); void arc_buf_freeze(arc_buf_t *buf); @@ -99,28 +102,16 @@ void arc_buf_thaw(arc_buf_t *buf); int arc_referenced(arc_buf_t *buf); #endif -typedef struct writeprops { - dmu_object_type_t wp_type; - uint8_t wp_level; - uint8_t wp_copies; - uint8_t wp_dncompress, wp_oscompress; - uint8_t wp_dnchecksum, wp_oschecksum; -} writeprops_t; - -void write_policy(spa_t *spa, const writeprops_t *wp, zio_prop_t *zp); -int arc_read(zio_t *pio, spa_t *spa, blkptr_t *bp, arc_buf_t *pbuf, +int arc_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, arc_buf_t *pbuf, arc_done_func_t *done, void *private, int priority, int zio_flags, uint32_t *arc_flags, const zbookmark_t *zb); -int arc_read_nolock(zio_t *pio, spa_t *spa, blkptr_t *bp, +int arc_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bp, arc_done_func_t *done, void *private, int priority, int flags, uint32_t *arc_flags, const zbookmark_t *zb); -zio_t *arc_write(zio_t *pio, spa_t *spa, const writeprops_t *wp, - boolean_t l2arc, uint64_t txg, blkptr_t *bp, arc_buf_t *buf, - arc_done_func_t *ready, arc_done_func_t *done, void *private, int priority, - int zio_flags, const zbookmark_t *zb); -int arc_free(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - zio_done_func_t *done, void *private, uint32_t arc_flags); -int arc_tryread(spa_t *spa, blkptr_t *bp, void *data); +zio_t *arc_write(zio_t *pio, spa_t *spa, uint64_t txg, + blkptr_t *bp, arc_buf_t *buf, boolean_t l2arc, const zio_prop_t *zp, + arc_done_func_t *ready, arc_done_func_t *done, void *private, + int priority, int zio_flags, const zbookmark_t *zb); void arc_set_callback(arc_buf_t *buf, arc_evict_func_t *func, void *private); int arc_buf_evict(arc_buf_t *buf); diff --git a/module/zfs/include/sys/bplist.h b/module/zfs/include/sys/bplist.h index cdb93a6c3..471be9047 100644 --- a/module/zfs/include/sys/bplist.h +++ b/module/zfs/include/sys/bplist.h @@ -19,68 +19,36 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_BPLIST_H #define _SYS_BPLIST_H -#include <sys/dmu.h> -#include <sys/spa.h> -#include <sys/txg.h> #include <sys/zfs_context.h> +#include <sys/spa.h> #ifdef __cplusplus extern "C" { #endif -typedef struct bplist_phys { - /* - * This is the bonus buffer for the dead lists. The object's - * contents is an array of bpl_entries blkptr_t's, representing - * a total of bpl_bytes physical space. - */ - uint64_t bpl_entries; - uint64_t bpl_bytes; - uint64_t bpl_comp; - uint64_t bpl_uncomp; -} bplist_phys_t; - -#define BPLIST_SIZE_V0 (2 * sizeof (uint64_t)) - -typedef struct bplist_q { - blkptr_t bpq_blk; - void *bpq_next; -} bplist_q_t; +typedef struct bplist_entry { + blkptr_t bpe_blk; + list_node_t bpe_node; +} bplist_entry_t; typedef struct bplist { kmutex_t bpl_lock; - objset_t *bpl_mos; - uint64_t bpl_object; - uint8_t bpl_blockshift; - uint8_t bpl_bpshift; - uint8_t bpl_havecomp; - bplist_q_t *bpl_queue; - bplist_phys_t *bpl_phys; - dmu_buf_t *bpl_dbuf; - dmu_buf_t *bpl_cached_dbuf; + list_t bpl_list; } bplist_t; -extern uint64_t bplist_create(objset_t *mos, int blocksize, dmu_tx_t *tx); -extern void bplist_destroy(objset_t *mos, uint64_t object, dmu_tx_t *tx); -extern int bplist_open(bplist_t *bpl, objset_t *mos, uint64_t object); -extern void bplist_close(bplist_t *bpl); -extern boolean_t bplist_empty(bplist_t *bpl); -extern int bplist_iterate(bplist_t *bpl, uint64_t *itorp, blkptr_t *bp); -extern int bplist_enqueue(bplist_t *bpl, const blkptr_t *bp, dmu_tx_t *tx); -extern void bplist_enqueue_deferred(bplist_t *bpl, const blkptr_t *bp); -extern void bplist_sync(bplist_t *bpl, dmu_tx_t *tx); -extern void bplist_vacate(bplist_t *bpl, dmu_tx_t *tx); -extern int bplist_space(bplist_t *bpl, - uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); -extern int bplist_space_birthrange(bplist_t *bpl, - uint64_t mintxg, uint64_t maxtxg, uint64_t *dasizep); +typedef int bplist_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx); + +void bplist_create(bplist_t *bpl); +void bplist_destroy(bplist_t *bpl); +void bplist_append(bplist_t *bpl, const blkptr_t *bp); +void bplist_iterate(bplist_t *bpl, bplist_itor_t *func, + void *arg, dmu_tx_t *tx); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/bpobj.h b/module/zfs/include/sys/bpobj.h new file mode 100644 index 000000000..3771a9541 --- /dev/null +++ b/module/zfs/include/sys/bpobj.h @@ -0,0 +1,91 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#ifndef _SYS_BPOBJ_H +#define _SYS_BPOBJ_H + +#include <sys/dmu.h> +#include <sys/spa.h> +#include <sys/txg.h> +#include <sys/zio.h> +#include <sys/zfs_context.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct bpobj_phys { + /* + * This is the bonus buffer for the dead lists. The object's + * contents is an array of bpo_entries blkptr_t's, representing + * a total of bpo_bytes physical space. + */ + uint64_t bpo_num_blkptrs; + uint64_t bpo_bytes; + uint64_t bpo_comp; + uint64_t bpo_uncomp; + uint64_t bpo_subobjs; + uint64_t bpo_num_subobjs; +} bpobj_phys_t; + +#define BPOBJ_SIZE_V0 (2 * sizeof (uint64_t)) +#define BPOBJ_SIZE_V1 (4 * sizeof (uint64_t)) + +typedef struct bpobj { + kmutex_t bpo_lock; + objset_t *bpo_os; + uint64_t bpo_object; + int bpo_epb; + uint8_t bpo_havecomp; + uint8_t bpo_havesubobj; + bpobj_phys_t *bpo_phys; + dmu_buf_t *bpo_dbuf; + dmu_buf_t *bpo_cached_dbuf; +} bpobj_t; + +typedef int bpobj_itor_t(void *arg, const blkptr_t *bp, dmu_tx_t *tx); + +uint64_t bpobj_alloc(objset_t *mos, int blocksize, dmu_tx_t *tx); +void bpobj_free(objset_t *os, uint64_t obj, dmu_tx_t *tx); + +int bpobj_open(bpobj_t *bpo, objset_t *mos, uint64_t object); +void bpobj_close(bpobj_t *bpo); + +int bpobj_iterate(bpobj_t *bpo, bpobj_itor_t func, void *arg, dmu_tx_t *tx); +int bpobj_iterate_nofree(bpobj_t *bpo, bpobj_itor_t func, void *, dmu_tx_t *); +int bpobj_iterate_dbg(bpobj_t *bpo, uint64_t *itorp, blkptr_t *bp); + +void bpobj_enqueue_subobj(bpobj_t *bpo, uint64_t subobj, dmu_tx_t *tx); +void bpobj_enqueue(bpobj_t *bpo, const blkptr_t *bp, dmu_tx_t *tx); + +int bpobj_space(bpobj_t *bpo, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); +int bpobj_space_range(bpobj_t *bpo, uint64_t mintxg, uint64_t maxtxg, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_BPOBJ_H */ diff --git a/module/zfs/include/sys/dbuf.h b/module/zfs/include/sys/dbuf.h index 267852519..4c05806e3 100644 --- a/module/zfs/include/sys/dbuf.h +++ b/module/zfs/include/sys/dbuf.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DBUF_H @@ -38,7 +37,6 @@ extern "C" { #endif -#define DB_BONUS_BLKID (-1ULL) #define IN_DMU_SYNC 2 /* @@ -75,7 +73,6 @@ typedef enum dbuf_states { DB_EVICTING } dbuf_states_t; -struct objset_impl; struct dnode; struct dmu_tx; @@ -134,6 +131,7 @@ typedef struct dbuf_dirty_record { arc_buf_t *dr_data; blkptr_t dr_overridden_by; override_states_t dr_override_state; + uint8_t dr_copies; } dl; } dt; } dbuf_dirty_record_t; @@ -148,7 +146,7 @@ typedef struct dmu_buf_impl { dmu_buf_t db; /* the objset we belong to */ - struct objset_impl *db_objset; + struct objset *db_objset; /* * the dnode we belong to (NULL when evicted) @@ -242,6 +240,10 @@ uint64_t dbuf_whichblock(struct dnode *di, uint64_t offset); dmu_buf_impl_t *dbuf_create_tlib(struct dnode *dn, char *data); void dbuf_create_bonus(struct dnode *dn); +int dbuf_spill_set_blksz(dmu_buf_t *db, uint64_t blksz, dmu_tx_t *tx); +void dbuf_spill_hold(struct dnode *dn, dmu_buf_impl_t **dbp, void *tag); + +void dbuf_rm_spill(struct dnode *dn, dmu_tx_t *tx); dmu_buf_impl_t *dbuf_hold(struct dnode *dn, uint64_t blkid, void *tag); dmu_buf_impl_t *dbuf_hold_level(struct dnode *dn, int level, uint64_t blkid, @@ -255,6 +257,7 @@ void dbuf_add_ref(dmu_buf_impl_t *db, void *tag); uint64_t dbuf_refcount(dmu_buf_impl_t *db); void dbuf_rele(dmu_buf_impl_t *db, void *tag); +void dbuf_rele_and_unlock(dmu_buf_impl_t *db, void *tag); dmu_buf_impl_t *dbuf_find(struct dnode *dn, uint8_t level, uint64_t blkid); @@ -266,6 +269,7 @@ void dmu_buf_will_fill(dmu_buf_t *db, dmu_tx_t *tx); void dmu_buf_fill_done(dmu_buf_t *db, dmu_tx_t *tx); void dbuf_assign_arcbuf(dmu_buf_impl_t *db, arc_buf_t *buf, dmu_tx_t *tx); dbuf_dirty_record_t *dbuf_dirty(dmu_buf_impl_t *db, dmu_tx_t *tx); +arc_buf_t *dbuf_loan_arcbuf(dmu_buf_impl_t *db); void dbuf_clear(dmu_buf_impl_t *db); void dbuf_evict(dmu_buf_impl_t *db); @@ -273,6 +277,7 @@ void dbuf_evict(dmu_buf_impl_t *db); void dbuf_setdirty(dmu_buf_impl_t *db, dmu_tx_t *tx); void dbuf_unoverride(dbuf_dirty_record_t *dr); void dbuf_sync_list(list_t *list, dmu_tx_t *tx); +void dbuf_release_bp(dmu_buf_impl_t *db); void dbuf_free_range(struct dnode *dn, uint64_t start, uint64_t end, struct dmu_tx *); @@ -324,7 +329,7 @@ _NOTE(CONSTCOND) } while (0) #define dprintf_dbuf_bp(db, bp, fmt, ...) do { \ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \ char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \ - sprintf_blkptr(__blkbuf, BP_SPRINTF_LEN, bp); \ + sprintf_blkptr(__blkbuf, bp); \ dprintf_dbuf(db, fmt " %s\n", __VA_ARGS__, __blkbuf); \ kmem_free(__blkbuf, BP_SPRINTF_LEN); \ } \ diff --git a/module/zfs/include/sys/ddt.h b/module/zfs/include/sys/ddt.h new file mode 100644 index 000000000..9724d6ece --- /dev/null +++ b/module/zfs/include/sys/ddt.h @@ -0,0 +1,246 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#ifndef _SYS_DDT_H +#define _SYS_DDT_H + +#include <sys/sysmacros.h> +#include <sys/types.h> +#include <sys/fs/zfs.h> +#include <sys/zio.h> +#include <sys/dmu.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * On-disk DDT formats, in the desired search order (newest version first). + */ +enum ddt_type { + DDT_TYPE_ZAP = 0, + DDT_TYPES +}; + +/* + * DDT classes, in the desired search order (highest replication level first). + */ +enum ddt_class { + DDT_CLASS_DITTO = 0, + DDT_CLASS_DUPLICATE, + DDT_CLASS_UNIQUE, + DDT_CLASSES +}; + +#define DDT_TYPE_CURRENT 0 + +#define DDT_COMPRESS_BYTEORDER_MASK 0x80 +#define DDT_COMPRESS_FUNCTION_MASK 0x7f + +/* + * On-disk ddt entry: key (name) and physical storage (value). + */ +typedef struct ddt_key { + zio_cksum_t ddk_cksum; /* 256-bit block checksum */ + uint64_t ddk_prop; /* LSIZE, PSIZE, compression */ +} ddt_key_t; + +/* + * ddk_prop layout: + * + * +-------+-------+-------+-------+-------+-------+-------+-------+ + * | 0 | 0 | 0 | comp | PSIZE | LSIZE | + * +-------+-------+-------+-------+-------+-------+-------+-------+ + */ +#define DDK_GET_LSIZE(ddk) \ + BF64_GET_SB((ddk)->ddk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1) +#define DDK_SET_LSIZE(ddk, x) \ + BF64_SET_SB((ddk)->ddk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1, x) + +#define DDK_GET_PSIZE(ddk) \ + BF64_GET_SB((ddk)->ddk_prop, 16, 16, SPA_MINBLOCKSHIFT, 1) +#define DDK_SET_PSIZE(ddk, x) \ + BF64_SET_SB((ddk)->ddk_prop, 16, 16, SPA_MINBLOCKSHIFT, 1, x) + +#define DDK_GET_COMPRESS(ddk) BF64_GET((ddk)->ddk_prop, 32, 8) +#define DDK_SET_COMPRESS(ddk, x) BF64_SET((ddk)->ddk_prop, 32, 8, x) + +#define DDT_KEY_WORDS (sizeof (ddt_key_t) / sizeof (uint64_t)) + +typedef struct ddt_phys { + dva_t ddp_dva[SPA_DVAS_PER_BP]; + uint64_t ddp_refcnt; + uint64_t ddp_phys_birth; +} ddt_phys_t; + +enum ddt_phys_type { + DDT_PHYS_DITTO = 0, + DDT_PHYS_SINGLE = 1, + DDT_PHYS_DOUBLE = 2, + DDT_PHYS_TRIPLE = 3, + DDT_PHYS_TYPES +}; + +/* + * In-core ddt entry + */ +struct ddt_entry { + ddt_key_t dde_key; + ddt_phys_t dde_phys[DDT_PHYS_TYPES]; + zio_t *dde_lead_zio[DDT_PHYS_TYPES]; + void *dde_repair_data; + enum ddt_type dde_type; + enum ddt_class dde_class; + uint8_t dde_loading; + uint8_t dde_loaded; + kcondvar_t dde_cv; + avl_node_t dde_node; +}; + +/* + * In-core ddt + */ +struct ddt { + kmutex_t ddt_lock; + avl_tree_t ddt_tree; + avl_tree_t ddt_repair_tree; + enum zio_checksum ddt_checksum; + spa_t *ddt_spa; + objset_t *ddt_os; + uint64_t ddt_stat_object; + uint64_t ddt_object[DDT_TYPES][DDT_CLASSES]; + ddt_histogram_t ddt_histogram[DDT_TYPES][DDT_CLASSES]; + ddt_histogram_t ddt_histogram_cache[DDT_TYPES][DDT_CLASSES]; + ddt_object_t ddt_object_stats[DDT_TYPES][DDT_CLASSES]; + avl_node_t ddt_node; +}; + +/* + * In-core and on-disk bookmark for DDT walks + */ +typedef struct ddt_bookmark { + uint64_t ddb_class; + uint64_t ddb_type; + uint64_t ddb_checksum; + uint64_t ddb_cursor; +} ddt_bookmark_t; + +/* + * Ops vector to access a specific DDT object type. + */ +typedef struct ddt_ops { + char ddt_op_name[32]; + int (*ddt_op_create)(objset_t *os, uint64_t *object, dmu_tx_t *tx, + boolean_t prehash); + int (*ddt_op_destroy)(objset_t *os, uint64_t object, dmu_tx_t *tx); + int (*ddt_op_lookup)(objset_t *os, uint64_t object, ddt_entry_t *dde); + void (*ddt_op_prefetch)(objset_t *os, uint64_t object, + ddt_entry_t *dde); + int (*ddt_op_update)(objset_t *os, uint64_t object, ddt_entry_t *dde, + dmu_tx_t *tx); + int (*ddt_op_remove)(objset_t *os, uint64_t object, ddt_entry_t *dde, + dmu_tx_t *tx); + int (*ddt_op_walk)(objset_t *os, uint64_t object, ddt_entry_t *dde, + uint64_t *walk); + uint64_t (*ddt_op_count)(objset_t *os, uint64_t object); +} ddt_ops_t; + +#define DDT_NAMELEN 80 + +extern void ddt_object_name(ddt_t *ddt, enum ddt_type type, + enum ddt_class class, char *name); +extern int ddt_object_walk(ddt_t *ddt, enum ddt_type type, + enum ddt_class class, uint64_t *walk, ddt_entry_t *dde); +extern uint64_t ddt_object_count(ddt_t *ddt, enum ddt_type type, + enum ddt_class class); +extern int ddt_object_info(ddt_t *ddt, enum ddt_type type, + enum ddt_class class, dmu_object_info_t *); +extern boolean_t ddt_object_exists(ddt_t *ddt, enum ddt_type type, + enum ddt_class class); + +extern void ddt_bp_fill(const ddt_phys_t *ddp, blkptr_t *bp, + uint64_t txg); +extern void ddt_bp_create(enum zio_checksum checksum, const ddt_key_t *ddk, + const ddt_phys_t *ddp, blkptr_t *bp); + +extern void ddt_key_fill(ddt_key_t *ddk, const blkptr_t *bp); + +extern void ddt_phys_fill(ddt_phys_t *ddp, const blkptr_t *bp); +extern void ddt_phys_clear(ddt_phys_t *ddp); +extern void ddt_phys_addref(ddt_phys_t *ddp); +extern void ddt_phys_decref(ddt_phys_t *ddp); +extern void ddt_phys_free(ddt_t *ddt, ddt_key_t *ddk, ddt_phys_t *ddp, + uint64_t txg); +extern ddt_phys_t *ddt_phys_select(const ddt_entry_t *dde, const blkptr_t *bp); +extern uint64_t ddt_phys_total_refcnt(const ddt_entry_t *dde); + +extern void ddt_stat_add(ddt_stat_t *dst, const ddt_stat_t *src, uint64_t neg); + +extern void ddt_histogram_add(ddt_histogram_t *dst, const ddt_histogram_t *src); +extern void ddt_histogram_stat(ddt_stat_t *dds, const ddt_histogram_t *ddh); +extern boolean_t ddt_histogram_empty(const ddt_histogram_t *ddh); +extern void ddt_get_dedup_object_stats(spa_t *spa, ddt_object_t *ddo); +extern void ddt_get_dedup_histogram(spa_t *spa, ddt_histogram_t *ddh); +extern void ddt_get_dedup_stats(spa_t *spa, ddt_stat_t *dds_total); + +extern uint64_t ddt_get_dedup_dspace(spa_t *spa); +extern uint64_t ddt_get_pool_dedup_ratio(spa_t *spa); + +extern int ddt_ditto_copies_needed(ddt_t *ddt, ddt_entry_t *dde, + ddt_phys_t *ddp_willref); +extern int ddt_ditto_copies_present(ddt_entry_t *dde); + +extern size_t ddt_compress(void *src, uchar_t *dst, size_t s_len, size_t d_len); +extern void ddt_decompress(uchar_t *src, void *dst, size_t s_len, size_t d_len); + +extern ddt_t *ddt_select(spa_t *spa, const blkptr_t *bp); +extern void ddt_enter(ddt_t *ddt); +extern void ddt_exit(ddt_t *ddt); +extern ddt_entry_t *ddt_lookup(ddt_t *ddt, const blkptr_t *bp, boolean_t add); +extern void ddt_prefetch(spa_t *spa, const blkptr_t *bp); +extern void ddt_remove(ddt_t *ddt, ddt_entry_t *dde); + +extern boolean_t ddt_class_contains(spa_t *spa, enum ddt_class max_class, + const blkptr_t *bp); + +extern ddt_entry_t *ddt_repair_start(ddt_t *ddt, const blkptr_t *bp); +extern void ddt_repair_done(ddt_t *ddt, ddt_entry_t *dde); + +extern int ddt_entry_compare(const void *x1, const void *x2); + +extern void ddt_create(spa_t *spa); +extern int ddt_load(spa_t *spa); +extern void ddt_unload(spa_t *spa); +extern void ddt_sync(spa_t *spa, uint64_t txg); +extern int ddt_walk(spa_t *spa, ddt_bookmark_t *ddb, ddt_entry_t *dde); +extern int ddt_object_update(ddt_t *ddt, enum ddt_type type, + enum ddt_class class, ddt_entry_t *dde, dmu_tx_t *tx); + +extern const ddt_ops_t ddt_zap_ops; + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_DDT_H */ diff --git a/module/zfs/include/sys/dmu.h b/module/zfs/include/sys/dmu.h index 3ff71b3b7..83932f467 100644 --- a/module/zfs/include/sys/dmu.h +++ b/module/zfs/include/sys/dmu.h @@ -19,10 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #ifndef _SYS_DMU_H #define _SYS_DMU_H @@ -38,12 +39,14 @@ #include <sys/types.h> #include <sys/param.h> #include <sys/cred.h> +#include <sys/time.h> #ifdef __cplusplus extern "C" { #endif struct uio; +struct xuio; struct page; struct vnode; struct spa; @@ -59,8 +62,9 @@ struct drr_end; struct zbookmark; struct spa; struct nvlist; -struct objset_impl; struct arc_buf; +struct zio_prop; +struct sa_handle; typedef struct objset objset_t; typedef struct dmu_tx dmu_tx_t; @@ -73,8 +77,8 @@ typedef enum dmu_object_type { DMU_OT_OBJECT_ARRAY, /* UINT64 */ DMU_OT_PACKED_NVLIST, /* UINT8 (XDR by nvlist_pack/unpack) */ DMU_OT_PACKED_NVLIST_SIZE, /* UINT64 */ - DMU_OT_BPLIST, /* UINT64 */ - DMU_OT_BPLIST_HDR, /* UINT64 */ + DMU_OT_BPOBJ, /* UINT64 */ + DMU_OT_BPOBJ_HDR, /* UINT64 */ /* spa: */ DMU_OT_SPACE_MAP_HEADER, /* UINT64 */ DMU_OT_SPACE_MAP, /* UINT64 */ @@ -114,10 +118,22 @@ typedef enum dmu_object_type { DMU_OT_FUID, /* FUID table (Packed NVLIST UINT8) */ DMU_OT_FUID_SIZE, /* FUID table size UINT64 */ DMU_OT_NEXT_CLONES, /* ZAP */ - DMU_OT_SCRUB_QUEUE, /* ZAP */ + DMU_OT_SCAN_QUEUE, /* ZAP */ DMU_OT_USERGROUP_USED, /* ZAP */ DMU_OT_USERGROUP_QUOTA, /* ZAP */ DMU_OT_USERREFS, /* ZAP */ + DMU_OT_DDT_ZAP, /* ZAP */ + DMU_OT_DDT_STATS, /* ZAP */ + DMU_OT_SA, /* System attr */ + DMU_OT_SA_MASTER_NODE, /* ZAP */ + DMU_OT_SA_ATTR_REGISTRATION, /* ZAP */ + DMU_OT_SA_ATTR_LAYOUTS, /* ZAP */ + DMU_OT_SCAN_XLATE, /* ZAP */ + DMU_OT_DEDUP, /* fake dedup BP from ddt_bp_create() */ + DMU_OT_DEADLIST, /* ZAP */ + DMU_OT_DEADLIST_HDR, /* UINT64 */ + DMU_OT_DSL_CLONES, /* ZAP */ + DMU_OT_BPOBJ_SUBOBJ, /* UINT64 */ DMU_OT_NUMTYPES } dmu_object_type_t; @@ -140,16 +156,6 @@ void zfs_oldacl_byteswap(void *buf, size_t size); void zfs_acl_byteswap(void *buf, size_t size); void zfs_znode_byteswap(void *buf, size_t size); -#define DS_MODE_NOHOLD 0 /* internal use only */ -#define DS_MODE_USER 1 /* simple access, no special needs */ -#define DS_MODE_OWNER 2 /* the "main" access, e.g. a mount */ -#define DS_MODE_TYPE_MASK 0x3 -#define DS_MODE_TYPE(x) ((x) & DS_MODE_TYPE_MASK) -#define DS_MODE_READONLY 0x8 -#define DS_MODE_IS_READONLY(x) ((x) & DS_MODE_READONLY) -#define DS_MODE_INCONSISTENT 0x10 -#define DS_MODE_IS_INCONSISTENT(x) ((x) & DS_MODE_INCONSISTENT) - #define DS_FIND_SNAPSHOTS (1<<0) #define DS_FIND_CHILDREN (1<<1) @@ -162,27 +168,35 @@ void zfs_znode_byteswap(void *buf, size_t size); #define DMU_USERUSED_OBJECT (-1ULL) #define DMU_GROUPUSED_OBJECT (-2ULL) +#define DMU_DEADLIST_OBJECT (-3ULL) /* + * artificial blkids for bonus buffer and spill blocks + */ +#define DMU_BONUS_BLKID (-1ULL) +#define DMU_SPILL_BLKID (-2ULL) +/* * Public routines to create, destroy, open, and close objsets. */ -int dmu_objset_open(const char *name, dmu_objset_type_t type, int mode, - objset_t **osp); -int dmu_objset_open_ds(struct dsl_dataset *ds, dmu_objset_type_t type, - objset_t **osp); -void dmu_objset_close(objset_t *os); +int dmu_objset_hold(const char *name, void *tag, objset_t **osp); +int dmu_objset_own(const char *name, dmu_objset_type_t type, + boolean_t readonly, void *tag, objset_t **osp); +void dmu_objset_rele(objset_t *os, void *tag); +void dmu_objset_disown(objset_t *os, void *tag); +int dmu_objset_open_ds(struct dsl_dataset *ds, objset_t **osp); + int dmu_objset_evict_dbufs(objset_t *os); -int dmu_objset_create(const char *name, dmu_objset_type_t type, - objset_t *clone_parent, uint64_t flags, +int dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags, void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg); +int dmu_objset_clone(const char *name, struct dsl_dataset *clone_origin, + uint64_t flags); int dmu_objset_destroy(const char *name, boolean_t defer); int dmu_snapshots_destroy(char *fsname, char *snapname, boolean_t defer); -int dmu_objset_rollback(objset_t *os); int dmu_objset_snapshot(char *fsname, char *snapname, struct nvlist *props, boolean_t recursive); int dmu_objset_rename(const char *name, const char *newname, boolean_t recursive); -int dmu_objset_find(char *name, int func(char *, void *), void *arg, +int dmu_objset_find(char *name, int func(const char *, void *), void *arg, int flags); void dmu_objset_byteswap(void *buf, size_t size); @@ -201,7 +215,7 @@ typedef void dmu_buf_evict_func_t(struct dmu_buf *db, void *user_ptr); #define DMU_POOL_DIRECTORY_OBJECT 1 #define DMU_POOL_CONFIG "config" #define DMU_POOL_ROOT_DATASET "root_dataset" -#define DMU_POOL_SYNC_BPLIST "sync_bplist" +#define DMU_POOL_SYNC_BPOBJ "sync_bplist" #define DMU_POOL_ERRLOG_SCRUB "errlog_scrub" #define DMU_POOL_ERRLOG_LAST "errlog_last" #define DMU_POOL_SPARES "spares" @@ -209,19 +223,12 @@ typedef void dmu_buf_evict_func_t(struct dmu_buf *db, void *user_ptr); #define DMU_POOL_HISTORY "history" #define DMU_POOL_PROPS "pool_props" #define DMU_POOL_L2CACHE "l2cache" - -/* 4x8 zbookmark_t */ -#define DMU_POOL_SCRUB_BOOKMARK "scrub_bookmark" -/* 1x8 zap obj DMU_OT_SCRUB_QUEUE */ -#define DMU_POOL_SCRUB_QUEUE "scrub_queue" -/* 1x8 txg */ -#define DMU_POOL_SCRUB_MIN_TXG "scrub_min_txg" -/* 1x8 txg */ -#define DMU_POOL_SCRUB_MAX_TXG "scrub_max_txg" -/* 1x4 enum scrub_func */ -#define DMU_POOL_SCRUB_FUNC "scrub_func" -/* 1x8 count */ -#define DMU_POOL_SCRUB_ERRORS "scrub_errors" +#define DMU_POOL_TMP_USERREFS "tmp_userrefs" +#define DMU_POOL_DDT "DDT-%s-%s-%s" +#define DMU_POOL_DDT_STATS "DDT-statistics" +#define DMU_POOL_CREATION_VERSION "creation_version" +#define DMU_POOL_SCAN "scan" +#define DMU_POOL_FREE_BPOBJ "free_bpobj" /* * Allocate an object from this objset. The range of object numbers @@ -306,11 +313,14 @@ void dmu_object_set_compress(objset_t *os, uint64_t object, uint8_t compress, dmu_tx_t *tx); /* - * Decide how many copies of a given block we should make. Can be from - * 1 to SPA_DVAS_PER_BP. + * Decide how to write a block: checksum, compression, number of copies, etc. */ -int dmu_get_replication_level(struct objset_impl *, struct zbookmark *zb, - dmu_object_type_t ot); +#define WP_NOFILL 0x1 +#define WP_DMU_SYNC 0x2 +#define WP_SPILL 0x4 + +void dmu_write_policy(objset_t *os, struct dnode *dn, int level, int wp, + struct zio_prop *zp); /* * The bonus data is accessed more or less like a regular buffer. * You must dmu_bonus_hold() to get the buffer, which will give you a @@ -324,6 +334,17 @@ int dmu_get_replication_level(struct objset_impl *, struct zbookmark *zb, int dmu_bonus_hold(objset_t *os, uint64_t object, void *tag, dmu_buf_t **); int dmu_bonus_max(void); int dmu_set_bonus(dmu_buf_t *, int, dmu_tx_t *); +int dmu_set_bonustype(dmu_buf_t *, dmu_object_type_t, dmu_tx_t *); +int dmu_rm_spill(objset_t *, uint64_t, dmu_tx_t *); + +/* + * Special spill buffer support used by "SA" framework + */ + +int dmu_spill_hold_by_bonus(dmu_buf_t *bonus, void *tag, dmu_buf_t **dbp); +int dmu_spill_hold_by_dnode(struct dnode *dn, uint32_t flags, + void *tag, dmu_buf_t **dbp); +int dmu_spill_hold_existing(dmu_buf_t *bonus, void *tag, dmu_buf_t **dbp); /* * Obtain the DMU buffer from the specified object which contains the @@ -340,7 +361,7 @@ int dmu_set_bonus(dmu_buf_t *, int, dmu_tx_t *); * The object number must be a valid, allocated object number. */ int dmu_buf_hold(objset_t *os, uint64_t object, uint64_t offset, - void *tag, dmu_buf_t **); + void *tag, dmu_buf_t **, int flags); void dmu_buf_add_ref(dmu_buf_t *db, void* tag); void dmu_buf_rele(dmu_buf_t *db, void *tag); uint64_t dmu_buf_refcount(dmu_buf_t *db); @@ -437,12 +458,35 @@ void dmu_tx_hold_free(dmu_tx_t *tx, uint64_t object, uint64_t off, uint64_t len); void dmu_tx_hold_zap(dmu_tx_t *tx, uint64_t object, int add, const char *name); void dmu_tx_hold_bonus(dmu_tx_t *tx, uint64_t object); +void dmu_tx_hold_spill(dmu_tx_t *tx, uint64_t object); +void dmu_tx_hold_sa(dmu_tx_t *tx, struct sa_handle *hdl, boolean_t may_grow); +void dmu_tx_hold_sa_create(dmu_tx_t *tx, int total_size); void dmu_tx_abort(dmu_tx_t *tx); int dmu_tx_assign(dmu_tx_t *tx, uint64_t txg_how); void dmu_tx_wait(dmu_tx_t *tx); void dmu_tx_commit(dmu_tx_t *tx); /* + * To register a commit callback, dmu_tx_callback_register() must be called. + * + * dcb_data is a pointer to caller private data that is passed on as a + * callback parameter. The caller is responsible for properly allocating and + * freeing it. + * + * When registering a callback, the transaction must be already created, but + * it cannot be committed or aborted. It can be assigned to a txg or not. + * + * The callback will be called after the transaction has been safely written + * to stable storage and will also be called if the dmu_tx is aborted. + * If there is any error which prevents the transaction from being committed to + * disk, the callback will be called with a value of error != 0. + */ +typedef void dmu_tx_callback_func_t(void *dcb_data, int error); + +void dmu_tx_callback_register(dmu_tx_t *tx, dmu_tx_callback_func_t *dcb_func, + void *dcb_data); + +/* * Free up the data blocks for a defined range of a file. If size is * zero, the range from offset to end-of-file is freed. */ @@ -469,12 +513,23 @@ void dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, int dmu_read_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size); int dmu_write_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size, dmu_tx_t *tx); +int dmu_write_uio_dbuf(dmu_buf_t *zdb, struct uio *uio, uint64_t size, + dmu_tx_t *tx); int dmu_write_pages(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, struct page *pp, dmu_tx_t *tx); struct arc_buf *dmu_request_arcbuf(dmu_buf_t *handle, int size); void dmu_return_arcbuf(struct arc_buf *buf); void dmu_assign_arcbuf(dmu_buf_t *handle, uint64_t offset, struct arc_buf *buf, dmu_tx_t *tx); +int dmu_xuio_init(struct xuio *uio, int niov); +void dmu_xuio_fini(struct xuio *uio); +int dmu_xuio_add(struct xuio *uio, struct arc_buf *abuf, offset_t off, + size_t n); +int dmu_xuio_cnt(struct xuio *uio); +struct arc_buf *dmu_xuio_arcbuf(struct xuio *uio, int i); +void dmu_xuio_clear(struct xuio *uio, int i); +void xuio_stat_wbuf_copied(); +void xuio_stat_wbuf_nocopy(); extern int zfs_prefetch_disable; @@ -485,19 +540,19 @@ void dmu_prefetch(objset_t *os, uint64_t object, uint64_t offset, uint64_t len); typedef struct dmu_object_info { - /* All sizes are in bytes. */ + /* All sizes are in bytes unless otherwise indicated. */ uint32_t doi_data_block_size; uint32_t doi_metadata_block_size; - uint64_t doi_bonus_size; dmu_object_type_t doi_type; dmu_object_type_t doi_bonus_type; + uint64_t doi_bonus_size; uint8_t doi_indirection; /* 2 = dnode->indirect->data */ uint8_t doi_checksum; uint8_t doi_compress; uint8_t doi_pad[5]; - /* Values below are number of 512-byte blocks. */ - uint64_t doi_physical_blks; /* data + metadata */ - uint64_t doi_max_block_offset; + uint64_t doi_physical_blocks_512; /* data + metadata, 512b blks */ + uint64_t doi_max_offset; + uint64_t doi_fill_count; /* number of non-empty blocks */ } dmu_object_info_t; typedef void arc_byteswap_func_t(void *buf, size_t size); @@ -566,6 +621,11 @@ void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, */ uint64_t dmu_objset_fsid_guid(objset_t *os); +/* + * Get the [cm]time for an objset's snapshot dir + */ +timestruc_t dmu_objset_snap_cmtime(objset_t *os); + int dmu_objset_is_snapshot(objset_t *os); extern struct spa *dmu_objset_spa(objset_t *os); @@ -575,6 +635,8 @@ extern struct dsl_dataset *dmu_objset_ds(objset_t *os); extern void dmu_objset_name(objset_t *os, char *buf); extern dmu_objset_type_t dmu_objset_type(objset_t *os); extern uint64_t dmu_objset_id(objset_t *os); +extern uint64_t dmu_objset_syncprop(objset_t *os); +extern uint64_t dmu_objset_logbias(objset_t *os); extern int dmu_snapshot_list_next(objset_t *os, int namelen, char *name, uint64_t *id, uint64_t *offp, boolean_t *case_conflict); extern int dmu_snapshot_realname(objset_t *os, char *name, char *real, @@ -582,9 +644,8 @@ extern int dmu_snapshot_realname(objset_t *os, char *name, char *real, extern int dmu_dir_list_next(objset_t *os, int namelen, char *name, uint64_t *idp, uint64_t *offp); -typedef void objset_used_cb_t(objset_t *os, dmu_object_type_t bonustype, - void *oldbonus, void *newbonus, uint64_t oldused, uint64_t newused, - dmu_tx_t *tx); +typedef int objset_used_cb_t(dmu_object_type_t bonustype, + void *bonus, uint64_t *userp, uint64_t *groupp); extern void dmu_objset_register_type(dmu_objset_type_t ost, objset_used_cb_t *cb); extern void dmu_objset_set_user(objset_t *os, void *user_ptr); @@ -605,9 +666,20 @@ uint64_t dmu_tx_get_txg(dmu_tx_t *tx); * storage when the write completes this new data does not become a * permanent part of the file until the associated transaction commits. */ -typedef void dmu_sync_cb_t(dmu_buf_t *db, void *arg); -int dmu_sync(struct zio *zio, dmu_buf_t *db, - struct blkptr *bp, uint64_t txg, dmu_sync_cb_t *done, void *arg); + +/* + * {zfs,zvol,ztest}_get_done() args + */ +typedef struct zgd { + struct zilog *zgd_zilog; + struct blkptr *zgd_bp; + dmu_buf_t *zgd_db; + struct rl *zgd_rl; + void *zgd_private; +} zgd_t; + +typedef void dmu_sync_cb_t(zgd_t *arg, int error); +int dmu_sync(struct zio *zio, uint64_t txg, dmu_sync_cb_t *done, zgd_t *zgd); /* * Find the next hole or data block in file starting at *off @@ -642,11 +714,12 @@ typedef struct dmu_recv_cookie { struct dsl_dataset *drc_real_ds; struct drr_begin *drc_drrb; char *drc_tosnap; + char *drc_top_ds; boolean_t drc_newfs; boolean_t drc_force; } dmu_recv_cookie_t; -int dmu_recv_begin(char *tofs, char *tosnap, struct drr_begin *, +int dmu_recv_begin(char *tofs, char *tosnap, char *topds, struct drr_begin *, boolean_t force, objset_t *origin, dmu_recv_cookie_t *); int dmu_recv_stream(dmu_recv_cookie_t *drc, struct vnode *vp, offset_t *voffp); int dmu_recv_end(dmu_recv_cookie_t *drc); diff --git a/module/zfs/include/sys/dmu_impl.h b/module/zfs/include/sys/dmu_impl.h index 3868a5816..22f9f5f8c 100644 --- a/module/zfs/include/sys/dmu_impl.h +++ b/module/zfs/include/sys/dmu_impl.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -210,8 +210,7 @@ extern "C" { * * ds_lock * protects: - * ds_user_ptr - * ds_user_evict_func + * ds_objset * ds_open_refcount * ds_snapname * ds_phys accounting @@ -233,6 +232,39 @@ extern "C" { struct objset; struct dmu_pool; +typedef struct dmu_xuio { + int next; + int cnt; + struct arc_buf **bufs; + iovec_t *iovp; +} dmu_xuio_t; + +typedef struct xuio_stats { + /* loaned yet not returned arc_buf */ + kstat_named_t xuiostat_onloan_rbuf; + kstat_named_t xuiostat_onloan_wbuf; + /* whether a copy is made when loaning out a read buffer */ + kstat_named_t xuiostat_rbuf_copied; + kstat_named_t xuiostat_rbuf_nocopy; + /* whether a copy is made when assigning a write buffer */ + kstat_named_t xuiostat_wbuf_copied; + kstat_named_t xuiostat_wbuf_nocopy; +} xuio_stats_t; + +static xuio_stats_t xuio_stats = { + { "onloan_read_buf", KSTAT_DATA_UINT64 }, + { "onloan_write_buf", KSTAT_DATA_UINT64 }, + { "read_buf_copied", KSTAT_DATA_UINT64 }, + { "read_buf_nocopy", KSTAT_DATA_UINT64 }, + { "write_buf_copied", KSTAT_DATA_UINT64 }, + { "write_buf_nocopy", KSTAT_DATA_UINT64 } +}; + +#define XUIOSTAT_INCR(stat, val) \ + atomic_add_64(&xuio_stats.stat.value.ui64, (val)) +#define XUIOSTAT_BUMP(stat) XUIOSTAT_INCR(stat, 1) + + #ifdef __cplusplus } #endif diff --git a/module/zfs/include/sys/dmu_objset.h b/module/zfs/include/sys/dmu_objset.h index 052cb8dd9..5c5119a20 100644 --- a/module/zfs/include/sys/dmu_objset.h +++ b/module/zfs/include/sys/dmu_objset.h @@ -19,10 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #ifndef _SYS_DMU_OBJSET_H #define _SYS_DMU_OBJSET_H @@ -33,6 +34,7 @@ #include <sys/dnode.h> #include <sys/zio.h> #include <sys/zil.h> +#include <sys/sa.h> #ifdef __cplusplus extern "C" { @@ -40,11 +42,13 @@ extern "C" { struct dsl_dataset; struct dmu_tx; -struct objset_impl; #define OBJSET_PHYS_SIZE 2048 #define OBJSET_OLD_PHYS_SIZE 1024 +#define OBJSET_BUF_HAS_USERUSED(buf) \ + (arc_buf_size(buf) > OBJSET_OLD_PHYS_SIZE) + #define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL<<0) typedef struct objset_phys { @@ -59,11 +63,6 @@ typedef struct objset_phys { } objset_phys_t; struct objset { - struct objset_impl *os; - int os_mode; -}; - -typedef struct objset_impl { /* Immutable: */ struct dsl_dataset *os_dsl_dataset; spa_t *os_spa; @@ -73,12 +72,17 @@ typedef struct objset_impl { dnode_t *os_userused_dnode; dnode_t *os_groupused_dnode; zilog_t *os_zil; - objset_t os; - uint8_t os_checksum; /* can change, under dsl_dir's locks */ - uint8_t os_compress; /* can change, under dsl_dir's locks */ - uint8_t os_copies; /* can change, under dsl_dir's locks */ - uint8_t os_primary_cache; /* can change, under dsl_dir's locks */ - uint8_t os_secondary_cache; /* can change, under dsl_dir's locks */ + + /* can change, under dsl_dir's locks: */ + uint8_t os_checksum; + uint8_t os_compress; + uint8_t os_copies; + uint8_t os_dedup_checksum; + uint8_t os_dedup_verify; + uint8_t os_logbias; + uint8_t os_primary_cache; + uint8_t os_secondary_cache; + uint8_t os_sync; /* no lock needed: */ struct dmu_tx *os_synctx; /* XXX sketchy */ @@ -101,8 +105,12 @@ typedef struct objset_impl { /* stuff we store for the user */ kmutex_t os_user_ptr_lock; void *os_user_ptr; -} objset_impl_t; + /* SA layout/attribute registration */ + sa_os_t *os_sa; +}; + +#define DMU_META_OBJSET 0 #define DMU_META_DNODE_OBJECT 0 #define DMU_OBJECT_IS_SPECIAL(obj) ((int64_t)(obj) <= 0) @@ -111,14 +119,18 @@ typedef struct objset_impl { (os)->os_secondary_cache == ZFS_CACHE_METADATA) /* called from zpl */ -int dmu_objset_open(const char *name, dmu_objset_type_t type, int mode, - objset_t **osp); -void dmu_objset_close(objset_t *os); -int dmu_objset_create(const char *name, dmu_objset_type_t type, - objset_t *clone_parent, uint64_t flags, +int dmu_objset_hold(const char *name, void *tag, objset_t **osp); +int dmu_objset_own(const char *name, dmu_objset_type_t type, + boolean_t readonly, void *tag, objset_t **osp); +void dmu_objset_rele(objset_t *os, void *tag); +void dmu_objset_disown(objset_t *os, void *tag); +int dmu_objset_from_ds(struct dsl_dataset *ds, objset_t **osp); + +int dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags, void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg); +int dmu_objset_clone(const char *name, struct dsl_dataset *clone_origin, + uint64_t flags); int dmu_objset_destroy(const char *name, boolean_t defer); -int dmu_objset_rollback(objset_t *os); int dmu_objset_snapshot(char *fsname, char *snapname, nvlist_t *props, boolean_t recursive); void dmu_objset_stats(objset_t *os, nvlist_t *nv); @@ -126,23 +138,26 @@ void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat); void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, uint64_t *usedobjsp, uint64_t *availobjsp); uint64_t dmu_objset_fsid_guid(objset_t *os); -int dmu_objset_find(char *name, int func(char *, void *), void *arg, +int dmu_objset_find(char *name, int func(const char *, void *), void *arg, int flags); int dmu_objset_find_spa(spa_t *spa, const char *name, int func(spa_t *, uint64_t, const char *, void *), void *arg, int flags); -int dmu_objset_prefetch(char *name, void *arg); +int dmu_objset_prefetch(const char *name, void *arg); void dmu_objset_byteswap(void *buf, size_t size); int dmu_objset_evict_dbufs(objset_t *os); +timestruc_t dmu_objset_snap_cmtime(objset_t *os); /* called from dsl */ -void dmu_objset_sync(objset_impl_t *os, zio_t *zio, dmu_tx_t *tx); -objset_impl_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds, +void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx); +boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg); +objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx); int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp, - objset_impl_t **osip); -void dmu_objset_evict(struct dsl_dataset *ds, void *arg); -void dmu_objset_do_userquota_callbacks(objset_impl_t *os, dmu_tx_t *tx); -boolean_t dmu_objset_userused_enabled(objset_impl_t *os); + objset_t **osp); +void dmu_objset_evict(objset_t *os); +void dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx); +void dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx); +boolean_t dmu_objset_userused_enabled(objset_t *os); int dmu_objset_userspace_upgrade(objset_t *os); boolean_t dmu_objset_userspace_present(objset_t *os); diff --git a/module/zfs/include/sys/dmu_traverse.h b/module/zfs/include/sys/dmu_traverse.h index 3e0268911..844e7f1ae 100644 --- a/module/zfs/include/sys/dmu_traverse.h +++ b/module/zfs/include/sys/dmu_traverse.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DMU_TRAVERSE_H @@ -36,19 +35,24 @@ extern "C" { struct dnode_phys; struct dsl_dataset; +struct zilog; +struct arc_buf; -typedef int (blkptr_cb_t)(spa_t *spa, blkptr_t *bp, - const zbookmark_t *zb, const struct dnode_phys *dnp, void *arg); +typedef int (blkptr_cb_t)(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, + struct arc_buf *pbuf, const zbookmark_t *zb, const struct dnode_phys *dnp, + void *arg); #define TRAVERSE_PRE (1<<0) #define TRAVERSE_POST (1<<1) #define TRAVERSE_PREFETCH_METADATA (1<<2) #define TRAVERSE_PREFETCH_DATA (1<<3) #define TRAVERSE_PREFETCH (TRAVERSE_PREFETCH_METADATA | TRAVERSE_PREFETCH_DATA) +#define TRAVERSE_HARD (1<<4) -int traverse_dataset(struct dsl_dataset *ds, uint64_t txg_start, - int flags, blkptr_cb_t func, void *arg); -int traverse_pool(spa_t *spa, blkptr_cb_t func, void *arg); +int traverse_dataset(struct dsl_dataset *ds, + uint64_t txg_start, int flags, blkptr_cb_t func, void *arg); +int traverse_pool(spa_t *spa, + uint64_t txg_start, int flags, blkptr_cb_t func, void *arg); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/dmu_tx.h b/module/zfs/include/sys/dmu_tx.h index 2727daaaa..c5ea50fa8 100644 --- a/module/zfs/include/sys/dmu_tx.h +++ b/module/zfs/include/sys/dmu_tx.h @@ -19,15 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_DMU_TX_H #define _SYS_DMU_TX_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/inttypes.h> #include <sys/dmu.h> #include <sys/txg.h> @@ -59,6 +57,7 @@ struct dmu_tx { txg_handle_t tx_txgh; void *tx_tempreserve_cookie; struct dmu_tx_hold *tx_needassign_txh; + list_t tx_callbacks; /* list of dmu_tx_callback_t on this dmu_tx */ uint8_t tx_anyobj; int tx_err; #ifdef ZFS_DEBUG @@ -78,6 +77,7 @@ enum dmu_tx_hold_type { THT_FREE, THT_ZAP, THT_SPACE, + THT_SPILL, THT_NUMTYPES }; @@ -98,6 +98,11 @@ typedef struct dmu_tx_hold { #endif } dmu_tx_hold_t; +typedef struct dmu_tx_callback { + list_node_t dcb_node; /* linked to tx_callbacks list */ + dmu_tx_callback_func_t *dcb_func; /* caller function pointer */ + void *dcb_data; /* caller private data */ +} dmu_tx_callback_t; /* * These routines are defined in dmu.h, and are called by the user. @@ -109,6 +114,10 @@ void dmu_tx_abort(dmu_tx_t *tx); uint64_t dmu_tx_get_txg(dmu_tx_t *tx); void dmu_tx_wait(dmu_tx_t *tx); +void dmu_tx_callback_register(dmu_tx_t *tx, dmu_tx_callback_func_t *dcb_func, + void *dcb_data); +void dmu_tx_do_callbacks(list_t *cb_list, int error); + /* * These routines are defined in dmu_spa.h, and are called by the SPA. */ diff --git a/module/zfs/include/sys/dmu_zfetch.h b/module/zfs/include/sys/dmu_zfetch.h index c94bced93..78cadd2b1 100644 --- a/module/zfs/include/sys/dmu_zfetch.h +++ b/module/zfs/include/sys/dmu_zfetch.h @@ -19,15 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _DFETCH_H #define _DFETCH_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #ifdef __cplusplus @@ -63,6 +61,9 @@ typedef struct zfetch { uint64_t zf_alloc_fail; /* # of failed attempts to alloc strm */ } zfetch_t; +void zfetch_init(void); +void zfetch_fini(void); + void dmu_zfetch_init(zfetch_t *, struct dnode *); void dmu_zfetch_rele(zfetch_t *); void dmu_zfetch(zfetch_t *, uint64_t, uint64_t, int); diff --git a/module/zfs/include/sys/dnode.h b/module/zfs/include/sys/dnode.h index 48e4da8cd..8bae1602e 100644 --- a/module/zfs/include/sys/dnode.h +++ b/module/zfs/include/sys/dnode.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DNODE_H @@ -63,6 +62,18 @@ extern "C" { #define DN_MAX_OFFSET_SHIFT 64 /* 2^64 bytes in a dnode */ /* + * dnode id flags + * + * Note: a file will never ever have its + * ids moved from bonus->spill + * and only in a crypto environment would it be on spill + */ +#define DN_ID_CHKED_BONUS 0x1 +#define DN_ID_CHKED_SPILL 0x2 +#define DN_ID_OLD_EXIST 0x4 +#define DN_ID_NEW_EXIST 0x8 + +/* * Derived constants. */ #define DNODE_SIZE (1 << DNODE_SHIFT) @@ -70,10 +81,12 @@ extern "C" { #define DN_MAX_BONUSLEN (DNODE_SIZE - DNODE_CORE_SIZE - (1 << SPA_BLKPTRSHIFT)) #define DN_MAX_OBJECT (1ULL << DN_MAX_OBJECT_SHIFT) #define DN_ZERO_BONUSLEN (DN_MAX_BONUSLEN + 1) +#define DN_KILL_SPILLBLK (1) #define DNODES_PER_BLOCK_SHIFT (DNODE_BLOCK_SHIFT - DNODE_SHIFT) #define DNODES_PER_BLOCK (1ULL << DNODES_PER_BLOCK_SHIFT) #define DNODES_PER_LEVEL_SHIFT (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT) +#define DNODES_PER_LEVEL (1ULL << DNODES_PER_LEVEL_SHIFT) /* The +2 here is a cheesy way to round up */ #define DN_MAX_LEVELS (2 + ((DN_MAX_OFFSET_SHIFT - SPA_MINBLOCKSHIFT) / \ @@ -88,7 +101,7 @@ extern "C" { #define EPB(blkshift, typeshift) (1 << (blkshift - typeshift)) struct dmu_buf_impl; -struct objset_impl; +struct objset; struct zio; enum dnode_dirtycontext { @@ -101,6 +114,9 @@ enum dnode_dirtycontext { #define DNODE_FLAG_USED_BYTES (1<<0) #define DNODE_FLAG_USERUSED_ACCOUNTED (1<<1) +/* Does dnode have a SA spill blkptr in bonus? */ +#define DNODE_FLAG_SPILL_BLKPTR (1<<2) + typedef struct dnode_phys { uint8_t dn_type; /* dmu_object_type_t */ uint8_t dn_indblkshift; /* ln2(indirect block size) */ @@ -121,7 +137,8 @@ typedef struct dnode_phys { uint64_t dn_pad3[4]; blkptr_t dn_blkptr[1]; - uint8_t dn_bonus[DN_MAX_BONUSLEN]; + uint8_t dn_bonus[DN_MAX_BONUSLEN - sizeof (blkptr_t)]; + blkptr_t dn_spill; } dnode_phys_t; typedef struct dnode { @@ -136,7 +153,7 @@ typedef struct dnode { list_node_t dn_link; /* immutable: */ - struct objset_impl *dn_objset; + struct objset *dn_objset; uint64_t dn_object; struct dmu_buf_impl *dn_dbuf; dnode_phys_t *dn_phys; /* pointer into dn->dn_dbuf->db.db_data */ @@ -161,6 +178,8 @@ typedef struct dnode { uint8_t dn_next_nblkptr[TXG_SIZE]; uint8_t dn_next_nlevels[TXG_SIZE]; uint8_t dn_next_indblkshift[TXG_SIZE]; + uint8_t dn_next_bonustype[TXG_SIZE]; + uint8_t dn_rm_spillblk[TXG_SIZE]; /* for removing spill blk */ uint16_t dn_next_bonuslen[TXG_SIZE]; uint32_t dn_next_blksz[TXG_SIZE]; /* next block size in bytes */ @@ -185,12 +204,17 @@ typedef struct dnode { kmutex_t dn_dbufs_mtx; list_t dn_dbufs; /* linked list of descendent dbuf_t's */ struct dmu_buf_impl *dn_bonus; /* bonus buffer dbuf */ + boolean_t dn_have_spill; /* have spill or are spilling */ /* parent IO for current sync write */ zio_t *dn_zio; /* used in syncing context */ - dnode_phys_t *dn_oldphys; + uint64_t dn_oldused; /* old phys used bytes */ + uint64_t dn_oldflags; /* old phys dn_flags */ + uint64_t dn_olduid, dn_oldgid; + uint64_t dn_newuid, dn_newgid; + int dn_id_flags; /* holds prefetch structure */ struct zfetch dn_zfetch; @@ -202,14 +226,17 @@ typedef struct free_range { uint64_t fr_nblks; } free_range_t; -dnode_t *dnode_special_open(struct objset_impl *dd, dnode_phys_t *dnp, +dnode_t *dnode_special_open(struct objset *dd, dnode_phys_t *dnp, uint64_t object); void dnode_special_close(dnode_t *dn); void dnode_setbonuslen(dnode_t *dn, int newsize, dmu_tx_t *tx); -int dnode_hold(struct objset_impl *dd, uint64_t object, +void dnode_setbonus_type(dnode_t *dn, dmu_object_type_t, dmu_tx_t *tx); +void dnode_rm_spill(dnode_t *dn, dmu_tx_t *tx); + +int dnode_hold(struct objset *dd, uint64_t object, void *ref, dnode_t **dnp); -int dnode_hold_impl(struct objset_impl *dd, uint64_t object, int flag, +int dnode_hold_impl(struct objset *dd, uint64_t object, int flag, void *ref, dnode_t **dnp); boolean_t dnode_add_ref(dnode_t *dn, void *ref); void dnode_rele(dnode_t *dn, void *ref); diff --git a/module/zfs/include/sys/dsl_dataset.h b/module/zfs/include/sys/dsl_dataset.h index b51036d38..58414e133 100644 --- a/module/zfs/include/sys/dsl_dataset.h +++ b/module/zfs/include/sys/dsl_dataset.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DSL_DATASET_H @@ -33,6 +32,7 @@ #include <sys/bplist.h> #include <sys/dsl_synctask.h> #include <sys/zfs_context.h> +#include <sys/dsl_deadlist.h> #ifdef __cplusplus extern "C" { @@ -42,8 +42,6 @@ struct dsl_dataset; struct dsl_dir; struct dsl_pool; -typedef void dsl_dataset_evict_func_t(struct dsl_dataset *, void *); - #define DS_FLAG_INCONSISTENT (1ULL<<0) #define DS_IS_INCONSISTENT(ds) \ ((ds)->ds_phys->ds_flags & DS_FLAG_INCONSISTENT) @@ -85,7 +83,7 @@ typedef struct dsl_dataset_phys { uint64_t ds_num_children; /* clone/snap children; ==0 for head */ uint64_t ds_creation_time; /* seconds since 1970 */ uint64_t ds_creation_txg; - uint64_t ds_deadlist_obj; /* DMU_OT_BPLIST */ + uint64_t ds_deadlist_obj; /* DMU_OT_DEADLIST */ uint64_t ds_used_bytes; uint64_t ds_compressed_bytes; uint64_t ds_uncompressed_bytes; @@ -115,10 +113,10 @@ typedef struct dsl_dataset { /* only used in syncing context, only valid for non-snapshots: */ struct dsl_dataset *ds_prev; - uint64_t ds_origin_txg; /* has internal locking: */ - bplist_t ds_deadlist; + dsl_deadlist_t ds_deadlist; + bplist_t ds_pending_deadlist; /* to protect against multiple concurrent incremental recv */ kmutex_t ds_recvlock; @@ -132,8 +130,7 @@ typedef struct dsl_dataset { * Protected by ds_lock: */ kmutex_t ds_lock; - void *ds_user_ptr; - dsl_dataset_evict_func_t *ds_user_evict_func; + objset_t *ds_objset; uint64_t ds_userrefs; /* @@ -165,7 +162,7 @@ struct dsl_ds_destroyarg { boolean_t need_prep; /* do we need to retry due to EBUSY? */ }; -#define dsl_dataset_is_snapshot(ds) \ +#define dsl_dataset_is_snapshot(ds) \ ((ds)->ds_phys->ds_num_children != 0) #define DS_UNIQUE_IS_ACCURATE(ds) \ @@ -174,17 +171,17 @@ struct dsl_ds_destroyarg { int dsl_dataset_hold(const char *name, void *tag, dsl_dataset_t **dsp); int dsl_dataset_hold_obj(struct dsl_pool *dp, uint64_t dsobj, void *tag, dsl_dataset_t **); -int dsl_dataset_own(const char *name, int flags, void *owner, - dsl_dataset_t **dsp); +int dsl_dataset_own(const char *name, boolean_t inconsistentok, + void *tag, dsl_dataset_t **dsp); int dsl_dataset_own_obj(struct dsl_pool *dp, uint64_t dsobj, - int flags, void *owner, dsl_dataset_t **); + boolean_t inconsistentok, void *tag, dsl_dataset_t **dsp); void dsl_dataset_name(dsl_dataset_t *ds, char *name); void dsl_dataset_rele(dsl_dataset_t *ds, void *tag); -void dsl_dataset_disown(dsl_dataset_t *ds, void *owner); +void dsl_dataset_disown(dsl_dataset_t *ds, void *tag); void dsl_dataset_drop_ref(dsl_dataset_t *ds, void *tag); boolean_t dsl_dataset_tryown(dsl_dataset_t *ds, boolean_t inconsistentok, - void *owner); -void dsl_dataset_make_exclusive(dsl_dataset_t *ds, void *owner); + void *tag); +void dsl_dataset_make_exclusive(dsl_dataset_t *ds, void *tag); uint64_t dsl_dataset_create_sync(dsl_dir_t *pds, const char *lastname, dsl_dataset_t *origin, uint64_t flags, cred_t *, dmu_tx_t *); uint64_t dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, @@ -195,21 +192,18 @@ dsl_checkfunc_t dsl_dataset_destroy_check; dsl_syncfunc_t dsl_dataset_destroy_sync; dsl_checkfunc_t dsl_dataset_snapshot_check; dsl_syncfunc_t dsl_dataset_snapshot_sync; -int dsl_dataset_rollback(dsl_dataset_t *ds, dmu_objset_type_t ost); int dsl_dataset_rename(char *name, const char *newname, boolean_t recursive); -int dsl_dataset_promote(const char *name); +int dsl_dataset_promote(const char *name, char *conflsnap); int dsl_dataset_clone_swap(dsl_dataset_t *clone, dsl_dataset_t *origin_head, boolean_t force); int dsl_dataset_user_hold(char *dsname, char *snapname, char *htag, - boolean_t recursive); + boolean_t recursive, boolean_t temphold); int dsl_dataset_user_release(char *dsname, char *snapname, char *htag, boolean_t recursive); +int dsl_dataset_user_release_tmp(struct dsl_pool *dp, uint64_t dsobj, + char *htag); int dsl_dataset_get_holds(const char *dsname, nvlist_t **nvp); -void *dsl_dataset_set_user_ptr(dsl_dataset_t *ds, - void *p, dsl_dataset_evict_func_t func); -void *dsl_dataset_get_user_ptr(dsl_dataset_t *ds); - blkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds); void dsl_dataset_set_blkptr(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx); @@ -219,10 +213,12 @@ boolean_t dsl_dataset_modified_since_lastsnap(dsl_dataset_t *ds); void dsl_dataset_sync(dsl_dataset_t *os, zio_t *zio, dmu_tx_t *tx); -void dsl_dataset_block_born(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx); -int dsl_dataset_block_kill(dsl_dataset_t *ds, blkptr_t *bp, zio_t *pio, +void dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx); -boolean_t dsl_dataset_block_freeable(dsl_dataset_t *ds, uint64_t blk_birth); +int dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, + dmu_tx_t *tx, boolean_t async); +boolean_t dsl_dataset_block_freeable(dsl_dataset_t *ds, const blkptr_t *bp, + uint64_t blk_birth); uint64_t dsl_dataset_prev_snap_txg(dsl_dataset_t *ds); void dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx); @@ -238,13 +234,13 @@ int dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf); int dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota, uint64_t asize, uint64_t inflight, uint64_t *used, uint64_t *ref_rsrv); -int dsl_dataset_set_quota(const char *dsname, uint64_t quota); -void dsl_dataset_set_quota_sync(void *arg1, void *arg2, cred_t *cr, - dmu_tx_t *tx); -int dsl_dataset_set_reservation(const char *dsname, uint64_t reservation); -void dsl_dataset_set_flags(dsl_dataset_t *ds, uint64_t flags); -int64_t dsl_dataset_new_refreservation(dsl_dataset_t *ds, uint64_t reservation, - dmu_tx_t *tx); +int dsl_dataset_set_quota(const char *dsname, zprop_source_t source, + uint64_t quota); +dsl_syncfunc_t dsl_dataset_set_quota_sync; +int dsl_dataset_set_reservation(const char *dsname, zprop_source_t source, + uint64_t reservation); + +int dsl_destroy_inconsistent(const char *dsname, void *arg); #ifdef ZFS_DEBUG #define dprintf_ds(ds, fmt, ...) do { \ diff --git a/module/zfs/include/sys/dsl_deadlist.h b/module/zfs/include/sys/dsl_deadlist.h new file mode 100644 index 000000000..d2c16d72c --- /dev/null +++ b/module/zfs/include/sys/dsl_deadlist.h @@ -0,0 +1,87 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#ifndef _SYS_DSL_DEADLIST_H +#define _SYS_DSL_DEADLIST_H + +#include <sys/bpobj.h> +#include <sys/zfs_context.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct dmu_buf; +struct dsl_dataset; + +typedef struct dsl_deadlist_phys { + uint64_t dl_used; + uint64_t dl_comp; + uint64_t dl_uncomp; + uint64_t dl_pad[37]; /* pad out to 320b for future expansion */ +} dsl_deadlist_phys_t; + +typedef struct dsl_deadlist { + objset_t *dl_os; + uint64_t dl_object; + avl_tree_t dl_tree; + boolean_t dl_havetree; + struct dmu_buf *dl_dbuf; + dsl_deadlist_phys_t *dl_phys; + kmutex_t dl_lock; + + /* if it's the old on-disk format: */ + bpobj_t dl_bpobj; + boolean_t dl_oldfmt; +} dsl_deadlist_t; + +typedef struct dsl_deadlist_entry { + avl_node_t dle_node; + uint64_t dle_mintxg; + bpobj_t dle_bpobj; +} dsl_deadlist_entry_t; + +void dsl_deadlist_open(dsl_deadlist_t *dl, objset_t *os, uint64_t object); +void dsl_deadlist_close(dsl_deadlist_t *dl); +uint64_t dsl_deadlist_alloc(objset_t *os, dmu_tx_t *tx); +void dsl_deadlist_free(objset_t *os, uint64_t dlobj, dmu_tx_t *tx); +void dsl_deadlist_insert(dsl_deadlist_t *dl, const blkptr_t *bp, dmu_tx_t *tx); +void dsl_deadlist_add_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx); +void dsl_deadlist_remove_key(dsl_deadlist_t *dl, uint64_t mintxg, dmu_tx_t *tx); +uint64_t dsl_deadlist_clone(dsl_deadlist_t *dl, uint64_t maxtxg, + uint64_t mrs_obj, dmu_tx_t *tx); +void dsl_deadlist_space(dsl_deadlist_t *dl, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); +void dsl_deadlist_space_range(dsl_deadlist_t *dl, + uint64_t mintxg, uint64_t maxtxg, + uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); +void dsl_deadlist_merge(dsl_deadlist_t *dl, uint64_t obj, dmu_tx_t *tx); +void dsl_deadlist_move_bpobj(dsl_deadlist_t *dl, bpobj_t *bpo, uint64_t mintxg, + dmu_tx_t *tx); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_DSL_DEADLIST_H */ diff --git a/module/zfs/include/sys/dsl_dir.h b/module/zfs/include/sys/dsl_dir.h index 56d06388c..2191635dd 100644 --- a/module/zfs/include/sys/dsl_dir.h +++ b/module/zfs/include/sys/dsl_dir.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DSL_DIR_H @@ -70,7 +69,8 @@ typedef struct dsl_dir_phys { uint64_t dd_deleg_zapobj; /* dataset delegation permissions */ uint64_t dd_flags; uint64_t dd_used_breakdown[DD_USED_NUM]; - uint64_t dd_pad[14]; /* pad out to 256 bytes for good measure */ + uint64_t dd_clones; /* dsl_dir objects */ + uint64_t dd_pad[13]; /* pad out to 256 bytes for good measure */ } dsl_dir_phys_t; struct dsl_dir { @@ -89,6 +89,8 @@ struct dsl_dir { /* Protected by dd_lock */ kmutex_t dd_lock; list_t dd_prop_cbs; /* list of dsl_prop_cb_record_t's */ + timestruc_t dd_snap_cmtime; /* last time snapshot namespace changed */ + uint64_t dd_origin_txg; /* gross estimate of space used by in-flight tx's */ uint64_t dd_tempreserved[TXG_SIZE]; @@ -125,18 +127,24 @@ void dsl_dir_diduse_space(dsl_dir_t *dd, dd_used_t type, int64_t used, int64_t compressed, int64_t uncompressed, dmu_tx_t *tx); void dsl_dir_transfer_space(dsl_dir_t *dd, int64_t delta, dd_used_t oldtype, dd_used_t newtype, dmu_tx_t *tx); -int dsl_dir_set_quota(const char *ddname, uint64_t quota); -int dsl_dir_set_reservation(const char *ddname, uint64_t reservation); +int dsl_dir_set_quota(const char *ddname, zprop_source_t source, + uint64_t quota); +int dsl_dir_set_reservation(const char *ddname, zprop_source_t source, + uint64_t reservation); int dsl_dir_rename(dsl_dir_t *dd, const char *newname); int dsl_dir_transfer_possible(dsl_dir_t *sdd, dsl_dir_t *tdd, uint64_t space); int dsl_dir_set_reservation_check(void *arg1, void *arg2, dmu_tx_t *tx); boolean_t dsl_dir_is_clone(dsl_dir_t *dd); void dsl_dir_new_refreservation(dsl_dir_t *dd, struct dsl_dataset *ds, uint64_t reservation, cred_t *cr, dmu_tx_t *tx); +void dsl_dir_snap_cmtime_update(dsl_dir_t *dd); +timestruc_t dsl_dir_snap_cmtime(dsl_dir_t *dd); /* internal reserved dir name */ #define MOS_DIR_NAME "$MOS" #define ORIGIN_DIR_NAME "$ORIGIN" +#define XLATION_DIR_NAME "$XLATION" +#define FREE_DIR_NAME "$FREE" #ifdef ZFS_DEBUG #define dprintf_dd(dd, fmt, ...) do { \ diff --git a/module/zfs/include/sys/dsl_pool.h b/module/zfs/include/sys/dsl_pool.h index d8da295f3..7d25bd7c0 100644 --- a/module/zfs/include/sys/dsl_pool.h +++ b/module/zfs/include/sys/dsl_pool.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DSL_POOL_H @@ -32,6 +31,9 @@ #include <sys/zfs_context.h> #include <sys/zio.h> #include <sys/dnode.h> +#include <sys/ddt.h> +#include <sys/arc.h> +#include <sys/bpobj.h> #ifdef __cplusplus extern "C" { @@ -42,12 +44,7 @@ struct dsl_dir; struct dsl_dataset; struct dsl_pool; struct dmu_tx; - -enum scrub_func { - SCRUB_FUNC_NONE, - SCRUB_FUNC_CLEAN, - SCRUB_FUNC_NUMFUNCS -}; +struct dsl_scan; /* These macros are for indexing into the zfs_all_blkstats_t. */ #define DMU_OT_DEFERRED DMU_OT_NONE @@ -75,6 +72,7 @@ typedef struct dsl_pool { struct objset *dp_meta_objset; struct dsl_dir *dp_root_dir; struct dsl_dir *dp_mos_dir; + struct dsl_dir *dp_free_dir; struct dsl_dataset *dp_origin_snap; uint64_t dp_root_dir_obj; struct taskq *dp_vnrele_taskq; @@ -83,25 +81,18 @@ typedef struct dsl_pool { blkptr_t dp_meta_rootbp; list_t dp_synced_datasets; hrtime_t dp_read_overhead; - uint64_t dp_throughput; + uint64_t dp_throughput; /* bytes per millisec */ uint64_t dp_write_limit; + uint64_t dp_tmp_userrefs_obj; + bpobj_t dp_free_bpobj; + + struct dsl_scan *dp_scan; /* Uses dp_lock */ kmutex_t dp_lock; uint64_t dp_space_towrite[TXG_SIZE]; uint64_t dp_tempreserved[TXG_SIZE]; - enum scrub_func dp_scrub_func; - uint64_t dp_scrub_queue_obj; - uint64_t dp_scrub_min_txg; - uint64_t dp_scrub_max_txg; - zbookmark_t dp_scrub_bookmark; - boolean_t dp_scrub_pausing; - boolean_t dp_scrub_isresilver; - uint64_t dp_scrub_start_time; - kmutex_t dp_scrub_cancel_lock; /* protects dp_scrub_restart */ - boolean_t dp_scrub_restart; - /* Has its own locking */ tx_state_t dp_tx; txg_list_t dp_dirty_datasets; @@ -123,29 +114,36 @@ int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp); void dsl_pool_close(dsl_pool_t *dp); dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg); void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg); -void dsl_pool_zil_clean(dsl_pool_t *dp); +void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg); int dsl_pool_sync_context(dsl_pool_t *dp); uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree); +uint64_t dsl_pool_adjustedfree(dsl_pool_t *dp, boolean_t netfree); int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx); void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); void dsl_pool_memory_pressure(dsl_pool_t *dp); void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); -int dsl_free(zio_t *pio, dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp, - zio_done_func_t *done, void *private, uint32_t arc_flags); -void dsl_pool_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx); -void dsl_pool_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx); -void dsl_pool_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2, - struct dmu_tx *tx); +void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp); +void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg, + const blkptr_t *bpp); +int dsl_read(zio_t *pio, spa_t *spa, const blkptr_t *bpp, arc_buf_t *pbuf, + arc_done_func_t *done, void *private, int priority, int zio_flags, + uint32_t *arc_flags, const zbookmark_t *zb); +int dsl_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bpp, + arc_done_func_t *done, void *private, int priority, int zio_flags, + uint32_t *arc_flags, const zbookmark_t *zb); void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx); void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx); - -int dsl_pool_scrub_cancel(dsl_pool_t *dp); -int dsl_pool_scrub_clean(dsl_pool_t *dp); -void dsl_pool_scrub_sync(dsl_pool_t *dp, dmu_tx_t *tx); -void dsl_pool_scrub_restart(dsl_pool_t *dp); +void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx); taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp); +extern int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj, + const char *tag, uint64_t *now, dmu_tx_t *tx); +extern int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj, + const char *tag, dmu_tx_t *tx); +extern void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp); +int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **); + #ifdef __cplusplus } #endif diff --git a/module/zfs/include/sys/dsl_prop.h b/module/zfs/include/sys/dsl_prop.h index 5afaa1f0d..a636ad350 100644 --- a/module/zfs/include/sys/dsl_prop.h +++ b/module/zfs/include/sys/dsl_prop.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DSL_PROP_H @@ -49,6 +48,25 @@ typedef struct dsl_prop_cb_record { void *cbr_arg; } dsl_prop_cb_record_t; +typedef struct dsl_props_arg { + nvlist_t *pa_props; + zprop_source_t pa_source; +} dsl_props_arg_t; + +typedef struct dsl_prop_set_arg { + const char *psa_name; + zprop_source_t psa_source; + int psa_intsz; + int psa_numints; + const void *psa_value; + + /* + * Used to handle the special requirements of the quota and reservation + * properties. + */ + uint64_t psa_effective_value; +} dsl_prop_setarg_t; + int dsl_prop_register(struct dsl_dataset *ds, const char *propname, dsl_prop_changed_cb_t *callback, void *cbarg); int dsl_prop_unregister(struct dsl_dataset *ds, const char *propname, @@ -59,18 +77,36 @@ int dsl_prop_get(const char *ddname, const char *propname, int intsz, int numints, void *buf, char *setpoint); int dsl_prop_get_integer(const char *ddname, const char *propname, uint64_t *valuep, char *setpoint); -int dsl_prop_get_all(objset_t *os, nvlist_t **nvp, boolean_t local); +int dsl_prop_get_all(objset_t *os, nvlist_t **nvp); +int dsl_prop_get_received(objset_t *os, nvlist_t **nvp); int dsl_prop_get_ds(struct dsl_dataset *ds, const char *propname, int intsz, int numints, void *buf, char *setpoint); int dsl_prop_get_dd(struct dsl_dir *dd, const char *propname, - int intsz, int numints, void *buf, char *setpoint); + int intsz, int numints, void *buf, char *setpoint, + boolean_t snapshot); dsl_syncfunc_t dsl_props_set_sync; int dsl_prop_set(const char *ddname, const char *propname, - int intsz, int numints, const void *buf); -int dsl_props_set(const char *dsname, nvlist_t *nvl); + zprop_source_t source, int intsz, int numints, const void *buf); +int dsl_props_set(const char *dsname, zprop_source_t source, nvlist_t *nvl); void dsl_dir_prop_set_uint64_sync(dsl_dir_t *dd, const char *name, uint64_t val, - cred_t *cr, dmu_tx_t *tx); + dmu_tx_t *tx); + +void dsl_prop_setarg_init_uint64(dsl_prop_setarg_t *psa, const char *propname, + zprop_source_t source, uint64_t *value); +int dsl_prop_predict_sync(dsl_dir_t *dd, dsl_prop_setarg_t *psa); +#ifdef ZFS_DEBUG +void dsl_prop_check_prediction(dsl_dir_t *dd, dsl_prop_setarg_t *psa); +#define DSL_PROP_CHECK_PREDICTION(dd, psa) \ + dsl_prop_check_prediction((dd), (psa)) +#else +#define DSL_PROP_CHECK_PREDICTION(dd, psa) /* nothing */ +#endif + +/* flag first receive on or after SPA_VERSION_RECVD_PROPS */ +boolean_t dsl_prop_get_hasrecvd(objset_t *os); +void dsl_prop_set_hasrecvd(objset_t *os); +void dsl_prop_unset_hasrecvd(objset_t *os); void dsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value); void dsl_prop_nvlist_add_string(nvlist_t *nv, diff --git a/module/zfs/include/sys/dsl_scan.h b/module/zfs/include/sys/dsl_scan.h new file mode 100644 index 000000000..c79666e67 --- /dev/null +++ b/module/zfs/include/sys/dsl_scan.h @@ -0,0 +1,108 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#ifndef _SYS_DSL_SCAN_H +#define _SYS_DSL_SCAN_H + +#include <sys/zfs_context.h> +#include <sys/zio.h> +#include <sys/ddt.h> +#include <sys/bplist.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct objset; +struct dsl_dir; +struct dsl_dataset; +struct dsl_pool; +struct dmu_tx; + +/* + * All members of this structure must be uint64_t, for byteswap + * purposes. + */ +typedef struct dsl_scan_phys { + uint64_t scn_func; /* pool_scan_func_t */ + uint64_t scn_state; /* dsl_scan_state_t */ + uint64_t scn_queue_obj; + uint64_t scn_min_txg; + uint64_t scn_max_txg; + uint64_t scn_cur_min_txg; + uint64_t scn_cur_max_txg; + uint64_t scn_start_time; + uint64_t scn_end_time; + uint64_t scn_to_examine; /* total bytes to be scanned */ + uint64_t scn_examined; /* bytes scanned so far */ + uint64_t scn_to_process; + uint64_t scn_processed; + uint64_t scn_errors; /* scan I/O error count */ + uint64_t scn_ddt_class_max; + ddt_bookmark_t scn_ddt_bookmark; + zbookmark_t scn_bookmark; + uint64_t scn_flags; /* dsl_scan_flags_t */ +} dsl_scan_phys_t; + +#define SCAN_PHYS_NUMINTS (sizeof (dsl_scan_phys_t) / sizeof (uint64_t)) + +typedef enum dsl_scan_flags { + DSF_VISIT_DS_AGAIN = 1<<0, +} dsl_scan_flags_t; + +typedef struct dsl_scan { + struct dsl_pool *scn_dp; + + boolean_t scn_pausing; + uint64_t scn_restart_txg; + uint64_t scn_sync_start_time; + zio_t *scn_zio_root; + + /* for debugging / information */ + uint64_t scn_visited_this_txg; + + dsl_scan_phys_t scn_phys; +} dsl_scan_t; + +int dsl_scan_init(struct dsl_pool *dp, uint64_t txg); +void dsl_scan_fini(struct dsl_pool *dp); +void dsl_scan_sync(struct dsl_pool *, dmu_tx_t *); +int dsl_scan_cancel(struct dsl_pool *); +int dsl_scan(struct dsl_pool *, pool_scan_func_t); +void dsl_resilver_restart(struct dsl_pool *, uint64_t txg); +boolean_t dsl_scan_resilvering(struct dsl_pool *dp); +boolean_t dsl_dataset_unstable(struct dsl_dataset *ds); +void dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum, + ddt_entry_t *dde, dmu_tx_t *tx); +void dsl_scan_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx); +void dsl_scan_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx); +void dsl_scan_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2, + struct dmu_tx *tx); +boolean_t dsl_scan_active(dsl_scan_t *scn); + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_DSL_SCAN_H */ diff --git a/module/zfs/include/sys/dsl_synctask.h b/module/zfs/include/sys/dsl_synctask.h index 4995bfe5a..9126290cd 100644 --- a/module/zfs/include/sys/dsl_synctask.h +++ b/module/zfs/include/sys/dsl_synctask.h @@ -19,15 +19,12 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_DSL_SYNCTASK_H #define _SYS_DSL_SYNCTASK_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/txg.h> #include <sys/zfs_context.h> @@ -38,7 +35,7 @@ extern "C" { struct dsl_pool; typedef int (dsl_checkfunc_t)(void *, void *, dmu_tx_t *); -typedef void (dsl_syncfunc_t)(void *, void *, cred_t *, dmu_tx_t *); +typedef void (dsl_syncfunc_t)(void *, void *, dmu_tx_t *); typedef struct dsl_sync_task { list_node_t dst_node; @@ -53,7 +50,6 @@ typedef struct dsl_sync_task_group { txg_node_t dstg_node; list_t dstg_tasks; struct dsl_pool *dstg_pool; - cred_t *dstg_cr; uint64_t dstg_txg; int dstg_err; int dstg_space; diff --git a/module/zfs/include/sys/fm/fs/zfs.h b/module/zfs/include/sys/fm/fs/zfs.h index 21b7dbe52..c752edc99 100644 --- a/module/zfs/include/sys/fm/fs/zfs.h +++ b/module/zfs/include/sys/fm/fs/zfs.h @@ -68,6 +68,18 @@ extern "C" { #define FM_EREPORT_PAYLOAD_ZFS_ZIO_OFFSET "zio_offset" #define FM_EREPORT_PAYLOAD_ZFS_ZIO_SIZE "zio_size" #define FM_EREPORT_PAYLOAD_ZFS_PREV_STATE "prev_state" +#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_EXPECTED "cksum_expected" +#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_ACTUAL "cksum_actual" +#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_ALGO "cksum_algorithm" +#define FM_EREPORT_PAYLOAD_ZFS_CKSUM_BYTESWAP "cksum_byteswap" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_OFFSET_RANGES "bad_ranges" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_MIN_GAP "bad_ranges_min_gap" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_SETS "bad_range_sets" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_CLEARS "bad_range_clears" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_SET_BITS "bad_set_bits" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_BITS "bad_cleared_bits" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_SET_HISTOGRAM "bad_set_histogram" +#define FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_HISTOGRAM "bad_cleared_histogram" #define FM_EREPORT_FAILMODE_WAIT "wait" #define FM_EREPORT_FAILMODE_CONTINUE "continue" @@ -75,6 +87,7 @@ extern "C" { #define FM_RESOURCE_REMOVED "removed" #define FM_RESOURCE_AUTOREPLACE "autoreplace" +#define FM_RESOURCE_STATECHANGE "statechange" #ifdef __cplusplus } diff --git a/module/zfs/include/sys/fm/protocol.h b/module/zfs/include/sys/fm/protocol.h index 767fb07d8..c4103c48a 100644 --- a/module/zfs/include/sys/fm/protocol.h +++ b/module/zfs/include/sys/fm/protocol.h @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_FM_PROTOCOL_H @@ -47,6 +46,7 @@ extern "C" { /* FM event class values */ #define FM_EREPORT_CLASS "ereport" #define FM_FAULT_CLASS "fault" +#define FM_DEFECT_CLASS "defect" #define FM_RSRC_CLASS "resource" #define FM_LIST_EVENT "list" @@ -83,6 +83,7 @@ extern "C" { #define FM_SUSPECT_FAULT_LIST "fault-list" #define FM_SUSPECT_FAULT_SZ "fault-list-sz" #define FM_SUSPECT_FAULT_STATUS "fault-status" +#define FM_SUSPECT_INJECTED "__injected" #define FM_SUSPECT_MESSAGE "message" #define FM_SUSPECT_RETIRE "retire" #define FM_SUSPECT_RESPONSE "response" @@ -122,6 +123,7 @@ extern "C" { #define FM_RSRC_ASRU_REPAIRED "repaired" #define FM_RSRC_ASRU_REPLACED "replaced" #define FM_RSRC_ASRU_ACQUITTED "acquitted" +#define FM_RSRC_ASRU_RESOLVED "resolved" #define FM_RSRC_ASRU_UNUSABLE "unusable" #define FM_RSRC_ASRU_EVENT "event" @@ -170,6 +172,7 @@ extern "C" { /* FMRI authority-type member names */ #define FM_FMRI_AUTH_CHASSIS "chassis-id" +#define FM_FMRI_AUTH_PRODUCT_SN "product-sn" #define FM_FMRI_AUTH_PRODUCT "product-id" #define FM_FMRI_AUTH_DOMAIN "domain-id" #define FM_FMRI_AUTH_SERVER "server-id" @@ -243,6 +246,7 @@ extern "C" { /* dev scheme member names */ #define FM_FMRI_DEV_ID "devid" +#define FM_FMRI_DEV_TGTPTLUN0 "target-port-l0id" #define FM_FMRI_DEV_PATH "device-path" /* pkg scheme member names */ @@ -311,7 +315,7 @@ extern int i_fm_payload_set(nvlist_t *, const char *, va_list); extern void fm_fmri_hc_set(nvlist_t *, int, const nvlist_t *, nvlist_t *, int, ...); extern void fm_fmri_dev_set(nvlist_t *, int, const nvlist_t *, const char *, - const char *); + const char *, const char *); extern void fm_fmri_de_set(nvlist_t *, int, const nvlist_t *, const char *); extern void fm_fmri_cpu_set(nvlist_t *, int, const nvlist_t *, uint32_t, uint8_t *, const char *); @@ -320,6 +324,8 @@ extern void fm_fmri_mem_set(nvlist_t *, int, const nvlist_t *, const char *, extern void fm_authority_set(nvlist_t *, int, const char *, const char *, const char *, const char *); extern void fm_fmri_zfs_set(nvlist_t *, int, uint64_t, uint64_t); +extern void fm_fmri_hc_create(nvlist_t *, int, const nvlist_t *, nvlist_t *, + nvlist_t *, int, ...); extern uint64_t fm_ena_increment(uint64_t); extern uint64_t fm_ena_generate(uint64_t, uchar_t); diff --git a/module/zfs/include/sys/metaslab.h b/module/zfs/include/sys/metaslab.h index 5d3e11c97..583d6303b 100644 --- a/module/zfs/include/sys/metaslab.h +++ b/module/zfs/include/sys/metaslab.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_METASLAB_H @@ -36,9 +35,6 @@ extern "C" { #endif -typedef struct metaslab_class metaslab_class_t; -typedef struct metaslab_group metaslab_group_t; - extern space_map_ops_t *zfs_metaslab_ops; extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo, @@ -46,6 +42,7 @@ extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo, extern void metaslab_fini(metaslab_t *msp); extern void metaslab_sync(metaslab_t *msp, uint64_t txg); extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg); +extern void metaslab_sync_reassess(metaslab_group_t *mg); #define METASLAB_HINTBP_FAVOR 0x0 #define METASLAB_HINTBP_AVOID 0x1 @@ -57,14 +54,24 @@ extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg, boolean_t now); extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg); -extern metaslab_class_t *metaslab_class_create(space_map_ops_t *ops); +extern metaslab_class_t *metaslab_class_create(spa_t *spa, + space_map_ops_t *ops); extern void metaslab_class_destroy(metaslab_class_t *mc); -extern void metaslab_class_add(metaslab_class_t *mc, metaslab_group_t *mg); -extern void metaslab_class_remove(metaslab_class_t *mc, metaslab_group_t *mg); +extern int metaslab_class_validate(metaslab_class_t *mc); + +extern void metaslab_class_space_update(metaslab_class_t *mc, + int64_t alloc_delta, int64_t defer_delta, + int64_t space_delta, int64_t dspace_delta); +extern uint64_t metaslab_class_get_alloc(metaslab_class_t *mc); +extern uint64_t metaslab_class_get_space(metaslab_class_t *mc); +extern uint64_t metaslab_class_get_dspace(metaslab_class_t *mc); +extern uint64_t metaslab_class_get_deferred(metaslab_class_t *mc); extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc, vdev_t *vd); extern void metaslab_group_destroy(metaslab_group_t *mg); +extern void metaslab_group_activate(metaslab_group_t *mg); +extern void metaslab_group_passivate(metaslab_group_t *mg); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/metaslab_impl.h b/module/zfs/include/sys/metaslab_impl.h index d67dea7e9..07988dd51 100644 --- a/module/zfs/include/sys/metaslab_impl.h +++ b/module/zfs/include/sys/metaslab_impl.h @@ -37,16 +37,23 @@ extern "C" { #endif struct metaslab_class { + spa_t *mc_spa; metaslab_group_t *mc_rotor; - uint64_t mc_allocated; space_map_ops_t *mc_ops; + uint64_t mc_aliquot; + uint64_t mc_alloc; /* total allocated space */ + uint64_t mc_deferred; /* total deferred frees */ + uint64_t mc_space; /* total space (alloc + free) */ + uint64_t mc_dspace; /* total deflated space */ }; struct metaslab_group { kmutex_t mg_lock; avl_tree_t mg_metaslab_tree; uint64_t mg_aliquot; + uint64_t mg_bonus_area; int64_t mg_bias; + int64_t mg_activation_count; metaslab_class_t *mg_class; vdev_t *mg_vd; metaslab_group_t *mg_prev; @@ -66,7 +73,9 @@ struct metaslab { space_map_obj_t ms_smo_syncing; /* syncing space map object */ space_map_t ms_allocmap[TXG_SIZE]; /* allocated this txg */ space_map_t ms_freemap[TXG_SIZE]; /* freed this txg */ + space_map_t ms_defermap[TXG_DEFER_SIZE]; /* deferred frees */ space_map_t ms_map; /* in-core free space map */ + int64_t ms_deferspace; /* sum of ms_defermap[] space */ uint64_t ms_weight; /* weight vs. others in group */ metaslab_group_t *ms_group; /* metaslab group */ avl_node_t ms_group_node; /* node in metaslab group tree */ diff --git a/module/zfs/include/sys/refcount.h b/module/zfs/include/sys/refcount.h index d3fe7b1f8..bc3ade80f 100644 --- a/module/zfs/include/sys/refcount.h +++ b/module/zfs/include/sys/refcount.h @@ -19,15 +19,12 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_REFCOUNT_H #define _SYS_REFCOUNT_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/inttypes.h> #include <sys/list.h> #include <sys/zfs_context.h> @@ -91,6 +88,11 @@ typedef struct refcount { atomic_add_64_nv(&(rc)->rc_count, number) #define refcount_remove_many(rc, number, holder) \ atomic_add_64_nv(&(rc)->rc_count, -number) +#define refcount_transfer(dst, src) { \ + uint64_t __tmp = (src)->rc_count; \ + atomic_add_64(&(src)->rc_count, -__tmp); \ + atomic_add_64(&(dst)->rc_count, __tmp); \ +} #define refcount_init() #define refcount_fini() diff --git a/module/zfs/include/sys/sa.h b/module/zfs/include/sys/sa.h new file mode 100644 index 000000000..e9a96a0f9 --- /dev/null +++ b/module/zfs/include/sys/sa.h @@ -0,0 +1,171 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_SA_H +#define _SYS_SA_H + +#include <sys/dmu.h> + +/* + * Currently available byteswap functions. + * If it all possible new attributes should used + * one of the already defined byteswap functions. + * If a new byteswap function is added then the + * ZPL/Pool version will need to be bumped. + */ + +typedef enum sa_bswap_type { + SA_UINT64_ARRAY, + SA_UINT32_ARRAY, + SA_UINT16_ARRAY, + SA_UINT8_ARRAY, + SA_ACL, +} sa_bswap_type_t; + +typedef uint16_t sa_attr_type_t; + +/* + * Attribute to register support for. + */ +typedef struct sa_attr_reg { + char *sa_name; /* attribute name */ + uint16_t sa_length; + sa_bswap_type_t sa_byteswap; /* bswap functon enum */ + sa_attr_type_t sa_attr; /* filled in during registration */ +} sa_attr_reg_t; + + +typedef void (sa_data_locator_t)(void **, uint32_t *, uint32_t, + boolean_t, void *userptr); + +/* + * array of attributes to store. + * + * This array should be treated as opaque/private data. + * The SA_BULK_ADD_ATTR() macro should be used for manipulating + * the array. + * + * When sa_replace_all_by_template() is used the attributes + * will be stored in the order defined in the array, except that + * the attributes may be split between the bonus and the spill buffer + * + */ +typedef struct sa_bulk_attr { + void *sa_data; + sa_data_locator_t *sa_data_func; + uint16_t sa_length; + sa_attr_type_t sa_attr; + /* the following are private to the sa framework */ + void *sa_addr; + uint16_t sa_buftype; + uint16_t sa_size; +} sa_bulk_attr_t; + + +/* + * special macro for adding entries for bulk attr support + * bulk - sa_bulk_attr_t + * count - integer that will be incremented during each add + * attr - attribute to manipulate + * func - function for accessing data. + * data - pointer to data. + * len - length of data + */ + +#define SA_ADD_BULK_ATTR(b, idx, attr, func, data, len) \ +{ \ + b[idx].sa_attr = attr;\ + b[idx].sa_data_func = func; \ + b[idx].sa_data = data; \ + b[idx++].sa_length = len; \ +} + +typedef struct sa_os sa_os_t; + +typedef enum sa_handle_type { + SA_HDL_SHARED, + SA_HDL_PRIVATE +} sa_handle_type_t; + +struct sa_handle; +typedef void *sa_lookup_tab_t; +typedef struct sa_handle sa_handle_t; + +typedef void (sa_update_cb_t)(sa_handle_t *, dmu_tx_t *tx); + +int sa_handle_get(objset_t *, uint64_t, void *userp, + sa_handle_type_t, sa_handle_t **); +int sa_handle_get_from_db(objset_t *, dmu_buf_t *, void *userp, + sa_handle_type_t, sa_handle_t **); +void sa_handle_destroy(sa_handle_t *); +int sa_buf_hold(objset_t *, uint64_t, void *, dmu_buf_t **); +void sa_buf_rele(dmu_buf_t *, void *); +int sa_lookup(sa_handle_t *, sa_attr_type_t, void *buf, uint32_t buflen); +int sa_update(sa_handle_t *, sa_attr_type_t, void *buf, + uint32_t buflen, dmu_tx_t *); +int sa_remove(sa_handle_t *, sa_attr_type_t, dmu_tx_t *); +int sa_bulk_lookup(sa_handle_t *, sa_bulk_attr_t *, int count); +int sa_bulk_lookup_locked(sa_handle_t *, sa_bulk_attr_t *, int count); +int sa_bulk_update(sa_handle_t *, sa_bulk_attr_t *, int count, dmu_tx_t *); +int sa_size(sa_handle_t *, sa_attr_type_t, int *); +int sa_update_from_cb(sa_handle_t *, sa_attr_type_t, + uint32_t buflen, sa_data_locator_t *, void *userdata, dmu_tx_t *); +void sa_object_info(sa_handle_t *, dmu_object_info_t *); +void sa_object_size(sa_handle_t *, uint32_t *, u_longlong_t *); +void sa_update_user(sa_handle_t *, sa_handle_t *); +void *sa_get_userdata(sa_handle_t *); +void sa_set_userp(sa_handle_t *, void *); +dmu_buf_t *sa_get_db(sa_handle_t *); +uint64_t sa_handle_object(sa_handle_t *); +boolean_t sa_attr_would_spill(sa_handle_t *, sa_attr_type_t, int size); +void sa_register_update_callback(objset_t *, sa_update_cb_t *); +sa_attr_type_t *sa_setup(objset_t *, uint64_t, sa_attr_reg_t *, int); +void sa_tear_down(objset_t *); +int sa_replace_all_by_template(sa_handle_t *, sa_bulk_attr_t *, + int, dmu_tx_t *); +int sa_replace_all_by_template_locked(sa_handle_t *, sa_bulk_attr_t *, + int, dmu_tx_t *); +boolean_t sa_enabled(objset_t *); +void sa_cache_init(); +void sa_cache_fini(); +int sa_set_sa_object(objset_t *, uint64_t); +int sa_hdrsize(void *); +void sa_handle_lock(sa_handle_t *); +void sa_handle_unlock(sa_handle_t *); + +#ifdef _KERNEL +int sa_lookup_uio(sa_handle_t *, sa_attr_type_t, uio_t *); +#endif + +#ifdef __cplusplus +extern "C" { +#endif + + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_SA_H */ diff --git a/module/zfs/include/sys/sa_impl.h b/module/zfs/include/sys/sa_impl.h new file mode 100644 index 000000000..62497e702 --- /dev/null +++ b/module/zfs/include/sys/sa_impl.h @@ -0,0 +1,288 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_SA_IMPL_H +#define _SYS_SA_IMPL_H + +#include <sys/dmu.h> +#include <sys/refcount.h> +#include <sys/list.h> + +/* + * Array of known attributes and their + * various characteristics. + */ +typedef struct sa_attr_table { + sa_attr_type_t sa_attr; + uint8_t sa_registered; + uint16_t sa_length; + sa_bswap_type_t sa_byteswap; + char *sa_name; +} sa_attr_table_t; + +/* + * Zap attribute format for attribute registration + * + * 64 56 48 40 32 24 16 8 0 + * +-------+-------+-------+-------+-------+-------+-------+-------+ + * | unused | len | bswap | attr num | + * +-------+-------+-------+-------+-------+-------+-------+-------+ + * + * Zap attribute format for layout information. + * + * layout information is stored as an array of attribute numbers + * The name of the attribute is the layout number (0, 1, 2, ...) + * + * 16 0 + * +---- ---+ + * | attr # | + * +--------+ + * | attr # | + * +--- ----+ + * ...... + * + */ + +#define ATTR_BSWAP(x) BF32_GET(x, 16, 8) +#define ATTR_LENGTH(x) BF32_GET(x, 24, 16) +#define ATTR_NUM(x) BF32_GET(x, 0, 16) +#define ATTR_ENCODE(x, attr, length, bswap) \ +{ \ + BF64_SET(x, 24, 16, length); \ + BF64_SET(x, 16, 8, bswap); \ + BF64_SET(x, 0, 16, attr); \ +} + +#define TOC_OFF(x) BF32_GET(x, 0, 23) +#define TOC_ATTR_PRESENT(x) BF32_GET(x, 31, 1) +#define TOC_LEN_IDX(x) BF32_GET(x, 24, 4) +#define TOC_ATTR_ENCODE(x, len_idx, offset) \ +{ \ + BF32_SET(x, 31, 1, 1); \ + BF32_SET(x, 24, 7, len_idx); \ + BF32_SET(x, 0, 24, offset); \ +} + +#define SA_LAYOUTS "LAYOUTS" +#define SA_REGISTRY "REGISTRY" + +/* + * Each unique layout will have their own table + * sa_lot (layout_table) + */ +typedef struct sa_lot { + avl_node_t lot_num_node; + avl_node_t lot_hash_node; + uint64_t lot_num; + uint64_t lot_hash; + sa_attr_type_t *lot_attrs; /* array of attr #'s */ + uint32_t lot_var_sizes; /* how many aren't fixed size */ + uint32_t lot_attr_count; /* total attr count */ + list_t lot_idx_tab; /* should be only a couple of entries */ + int lot_instance; /* used with lot_hash to identify entry */ +} sa_lot_t; + +/* index table of offsets */ +typedef struct sa_idx_tab { + list_node_t sa_next; + sa_lot_t *sa_layout; + uint16_t *sa_variable_lengths; + refcount_t sa_refcount; + uint32_t *sa_idx_tab; /* array of offsets */ +} sa_idx_tab_t; + +/* + * Since the offset/index information into the actual data + * will usually be identical we can share that information with + * all handles that have the exact same offsets. + * + * You would typically only have a large number of different table of + * contents if you had a several variable sized attributes. + * + * Two AVL trees are used to track the attribute layout numbers. + * one is keyed by number and will be consulted when a DMU_OT_SA + * object is first read. The second tree is keyed by the hash signature + * of the attributes and will be consulted when an attribute is added + * to determine if we already have an instance of that layout. Both + * of these tree's are interconnected. The only difference is that + * when an entry is found in the "hash" tree the list of attributes will + * need to be compared against the list of attributes you have in hand. + * The assumption is that typically attributes will just be updated and + * adding a completely new attribute is a very rare operation. + */ +struct sa_os { + kmutex_t sa_lock; + boolean_t sa_need_attr_registration; + boolean_t sa_force_spill; + uint64_t sa_master_obj; + uint64_t sa_reg_attr_obj; + uint64_t sa_layout_attr_obj; + int sa_num_attrs; + sa_attr_table_t *sa_attr_table; /* private attr table */ + sa_update_cb_t *sa_update_cb; + avl_tree_t sa_layout_num_tree; /* keyed by layout number */ + avl_tree_t sa_layout_hash_tree; /* keyed by layout hash value */ + int sa_user_table_sz; + sa_attr_type_t *sa_user_table; /* user name->attr mapping table */ +}; + +/* + * header for all bonus and spill buffers. + * The header has a fixed portion with a variable number + * of "lengths" depending on the number of variable sized + * attribues which are determined by the "layout number" + */ + +#define SA_MAGIC 0x2F505A /* ZFS SA */ +typedef struct sa_hdr_phys { + uint32_t sa_magic; + uint16_t sa_layout_info; /* Encoded with hdrsize and layout number */ + uint16_t sa_lengths[1]; /* optional sizes for variable length attrs */ + /* ... Data follows the lengths. */ +} sa_hdr_phys_t; + +/* + * sa_hdr_phys -> sa_layout_info + * + * 16 10 0 + * +--------+-------+ + * | hdrsz |layout | + * +--------+-------+ + * + * Bits 0-10 are the layout number + * Bits 11-16 are the size of the header. + * The hdrsize is the number * 8 + * + * For example. + * hdrsz of 1 ==> 8 byte header + * 2 ==> 16 byte header + * + */ + +#define SA_HDR_LAYOUT_NUM(hdr) BF32_GET(hdr->sa_layout_info, 0, 10) +#define SA_HDR_SIZE(hdr) BF32_GET_SB(hdr->sa_layout_info, 10, 16, 3, 0) +#define SA_HDR_LAYOUT_INFO_ENCODE(x, num, size) \ +{ \ + BF32_SET_SB(x, 10, 6, 3, 0, size); \ + BF32_SET(x, 0, 10, num); \ +} + +typedef enum sa_buf_type { + SA_BONUS = 1, + SA_SPILL = 2 +} sa_buf_type_t; + +typedef enum sa_data_op { + SA_LOOKUP, + SA_UPDATE, + SA_ADD, + SA_REPLACE, + SA_REMOVE +} sa_data_op_t; + +/* + * Opaque handle used for most sa functions + * + * This needs to be kept as small as possible. + */ + +struct sa_handle { + kmutex_t sa_lock; + dmu_buf_t *sa_bonus; + dmu_buf_t *sa_spill; + objset_t *sa_os; + void *sa_userp; + sa_idx_tab_t *sa_bonus_tab; /* idx of bonus */ + sa_idx_tab_t *sa_spill_tab; /* only present if spill activated */ +}; + +#define SA_GET_DB(hdl, type) \ + (dmu_buf_impl_t *)((type == SA_BONUS) ? hdl->sa_bonus : hdl->sa_spill) + +#define SA_GET_HDR(hdl, type) \ + ((sa_hdr_phys_t *)((dmu_buf_impl_t *)(SA_GET_DB(hdl, \ + type))->db.db_data)) + +#define SA_IDX_TAB_GET(hdl, type) \ + (type == SA_BONUS ? hdl->sa_bonus_tab : hdl->sa_spill_tab) + +#define IS_SA_BONUSTYPE(a) \ + ((a == DMU_OT_SA) ? B_TRUE : B_FALSE) + +#define SA_BONUSTYPE_FROM_DB(db) \ + (((dmu_buf_impl_t *)db)->db_dnode->dn_bonustype) + +#define SA_BLKPTR_SPACE (DN_MAX_BONUSLEN - sizeof (blkptr_t)) + +#define SA_LAYOUT_NUM(x, type) \ + ((!IS_SA_BONUSTYPE(type) ? 0 : (((IS_SA_BONUSTYPE(type)) && \ + ((SA_HDR_LAYOUT_NUM(x)) == 0)) ? 1 : SA_HDR_LAYOUT_NUM(x)))) + + +#define SA_REGISTERED_LEN(sa, attr) sa->sa_attr_table[attr].sa_length + +#define SA_ATTR_LEN(sa, idx, attr, hdr) ((SA_REGISTERED_LEN(sa, attr) == 0) ?\ + hdr->sa_lengths[TOC_LEN_IDX(idx->sa_idx_tab[attr])] : \ + SA_REGISTERED_LEN(sa, attr)) + +#define SA_SET_HDR(hdr, num, size) \ + { \ + hdr->sa_magic = SA_MAGIC; \ + SA_HDR_LAYOUT_INFO_ENCODE(hdr->sa_layout_info, num, size); \ + } + +#define SA_ATTR_INFO(sa, idx, hdr, attr, bulk, type, hdl) \ + { \ + bulk.sa_size = SA_ATTR_LEN(sa, idx, attr, hdr); \ + bulk.sa_buftype = type; \ + bulk.sa_addr = \ + (void *)((uintptr_t)TOC_OFF(idx->sa_idx_tab[attr]) + \ + (uintptr_t)hdr); \ +} + +#define SA_HDR_SIZE_MATCH_LAYOUT(hdr, tb) \ + (SA_HDR_SIZE(hdr) == (sizeof (sa_hdr_phys_t) + \ + (tb->lot_var_sizes > 1 ? P2ROUNDUP((tb->lot_var_sizes - 1) * \ + sizeof (uint16_t), 8) : 0))) + +int sa_add_impl(sa_handle_t *, sa_attr_type_t, + uint32_t, sa_data_locator_t, void *, dmu_tx_t *); + +void sa_register_update_callback_locked(objset_t *, sa_update_cb_t *); +int sa_size_locked(sa_handle_t *, sa_attr_type_t, int *); + +void sa_default_locator(void **, uint32_t *, uint32_t, boolean_t, void *); +int sa_attr_size(sa_os_t *, sa_idx_tab_t *, sa_attr_type_t, + uint16_t *, sa_hdr_phys_t *); + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_SA_IMPL_H */ diff --git a/module/zfs/include/sys/spa.h b/module/zfs/include/sys/spa.h index 0a4d55097..41a40300e 100644 --- a/module/zfs/include/sys/spa.h +++ b/module/zfs/include/sys/spa.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_SPA_H @@ -43,8 +42,13 @@ extern "C" { typedef struct spa spa_t; typedef struct vdev vdev_t; typedef struct metaslab metaslab_t; +typedef struct metaslab_group metaslab_group_t; +typedef struct metaslab_class metaslab_class_t; +typedef struct zio zio_t; typedef struct zilog zilog_t; typedef struct spa_aux_vdev spa_aux_vdev_t; +typedef struct ddt ddt_t; +typedef struct ddt_entry ddt_entry_t; struct dsl_pool; /* @@ -134,15 +138,15 @@ typedef struct zio_cksum { * +-------+-------+-------+-------+-------+-------+-------+-------+ * 5 |G| offset3 | * +-------+-------+-------+-------+-------+-------+-------+-------+ - * 6 |E| lvl | type | cksum | comp | PSIZE | LSIZE | + * 6 |BDX|lvl| type | cksum | comp | PSIZE | LSIZE | * +-------+-------+-------+-------+-------+-------+-------+-------+ * 7 | padding | * +-------+-------+-------+-------+-------+-------+-------+-------+ * 8 | padding | * +-------+-------+-------+-------+-------+-------+-------+-------+ - * 9 | padding | + * 9 | physical birth txg | * +-------+-------+-------+-------+-------+-------+-------+-------+ - * a | birth txg | + * a | logical birth txg | * +-------+-------+-------+-------+-------+-------+-------+-------+ * b | fill count | * +-------+-------+-------+-------+-------+-------+-------+-------+ @@ -166,25 +170,29 @@ typedef struct zio_cksum { * cksum checksum function * comp compression function * G gang block indicator - * E endianness - * type DMU object type + * B byteorder (endianness) + * D dedup + * X unused * lvl level of indirection - * birth txg transaction group in which the block was born + * type DMU object type + * phys birth txg of block allocation; zero if same as logical birth txg + * log. birth transaction group in which the block was logically born * fill count number of non-zero blocks under this bp * checksum[4] 256-bit checksum of the data this bp describes */ -typedef struct blkptr { - dva_t blk_dva[3]; /* 128-bit Data Virtual Address */ - uint64_t blk_prop; /* size, compression, type, etc */ - uint64_t blk_pad[3]; /* Extra space for the future */ - uint64_t blk_birth; /* transaction group at birth */ - uint64_t blk_fill; /* fill count */ - zio_cksum_t blk_cksum; /* 256-bit checksum */ -} blkptr_t; - #define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */ #define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */ +typedef struct blkptr { + dva_t blk_dva[SPA_DVAS_PER_BP]; /* Data Virtual Addresses */ + uint64_t blk_prop; /* size, compression, type, etc */ + uint64_t blk_pad[2]; /* Extra space for the future */ + uint64_t blk_phys_birth; /* txg when block was allocated */ + uint64_t blk_birth; /* transaction group at birth */ + uint64_t blk_fill; /* fill count */ + zio_cksum_t blk_cksum; /* 256-bit checksum */ +} blkptr_t; + /* * Macros to get and set fields in a bp or DVA. */ @@ -208,8 +216,7 @@ typedef struct blkptr { #define DVA_SET_GANG(dva, x) BF64_SET((dva)->dva_word[1], 63, 1, x) #define BP_GET_LSIZE(bp) \ - (BP_IS_HOLE(bp) ? 0 : \ - BF64_GET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1)) + BF64_GET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1) #define BP_SET_LSIZE(bp, x) \ BF64_SET_SB((bp)->blk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1, x) @@ -218,20 +225,35 @@ typedef struct blkptr { #define BP_SET_PSIZE(bp, x) \ BF64_SET_SB((bp)->blk_prop, 16, 16, SPA_MINBLOCKSHIFT, 1, x) -#define BP_GET_COMPRESS(bp) BF64_GET((bp)->blk_prop, 32, 8) -#define BP_SET_COMPRESS(bp, x) BF64_SET((bp)->blk_prop, 32, 8, x) +#define BP_GET_COMPRESS(bp) BF64_GET((bp)->blk_prop, 32, 8) +#define BP_SET_COMPRESS(bp, x) BF64_SET((bp)->blk_prop, 32, 8, x) + +#define BP_GET_CHECKSUM(bp) BF64_GET((bp)->blk_prop, 40, 8) +#define BP_SET_CHECKSUM(bp, x) BF64_SET((bp)->blk_prop, 40, 8, x) -#define BP_GET_CHECKSUM(bp) BF64_GET((bp)->blk_prop, 40, 8) -#define BP_SET_CHECKSUM(bp, x) BF64_SET((bp)->blk_prop, 40, 8, x) +#define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8) +#define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x) -#define BP_GET_TYPE(bp) BF64_GET((bp)->blk_prop, 48, 8) -#define BP_SET_TYPE(bp, x) BF64_SET((bp)->blk_prop, 48, 8, x) +#define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5) +#define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x) -#define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5) -#define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x) +#define BP_GET_PROP_BIT_61(bp) BF64_GET((bp)->blk_prop, 61, 1) +#define BP_SET_PROP_BIT_61(bp, x) BF64_SET((bp)->blk_prop, 61, 1, x) -#define BP_GET_BYTEORDER(bp) (0 - BF64_GET((bp)->blk_prop, 63, 1)) -#define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x) +#define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1) +#define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x) + +#define BP_GET_BYTEORDER(bp) (0 - BF64_GET((bp)->blk_prop, 63, 1)) +#define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x) + +#define BP_PHYSICAL_BIRTH(bp) \ + ((bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth) + +#define BP_SET_BIRTH(bp, logical, physical) \ +{ \ + (bp)->blk_birth = (logical); \ + (bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \ +} #define BP_GET_ASIZE(bp) \ (DVA_GET_ASIZE(&(bp)->blk_dva[0]) + DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \ @@ -239,7 +261,7 @@ typedef struct blkptr { #define BP_GET_UCSIZE(bp) \ ((BP_GET_LEVEL(bp) > 0 || dmu_ot[BP_GET_TYPE(bp)].ot_metadata) ? \ - BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp)); + BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp)) #define BP_GET_NDVAS(bp) \ (!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \ @@ -255,6 +277,12 @@ typedef struct blkptr { ((dva1)->dva_word[1] == (dva2)->dva_word[1] && \ (dva1)->dva_word[0] == (dva2)->dva_word[0]) +#define BP_EQUAL(bp1, bp2) \ + (BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \ + DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \ + DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \ + DVA_EQUAL(&(bp1)->blk_dva[2], &(bp2)->blk_dva[2])) + #define ZIO_CHECKSUM_EQUAL(zc1, zc2) \ (0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \ ((zc1).zc_word[1] - (zc2).zc_word[1]) | \ @@ -274,7 +302,10 @@ typedef struct blkptr { #define BP_IDENTITY(bp) (&(bp)->blk_dva[0]) #define BP_IS_GANG(bp) DVA_GET_GANG(BP_IDENTITY(bp)) #define BP_IS_HOLE(bp) ((bp)->blk_birth == 0) -#define BP_IS_OLDER(bp, txg) (!BP_IS_HOLE(bp) && (bp)->blk_birth < (txg)) + +/* BP_IS_RAIDZ(bp) assumes no block compression */ +#define BP_IS_RAIDZ(bp) (DVA_GET_ASIZE(&(bp)->blk_dva[0]) > \ + BP_GET_PSIZE(bp)) #define BP_ZERO(bp) \ { \ @@ -287,14 +318,12 @@ typedef struct blkptr { (bp)->blk_prop = 0; \ (bp)->blk_pad[0] = 0; \ (bp)->blk_pad[1] = 0; \ - (bp)->blk_pad[2] = 0; \ + (bp)->blk_phys_birth = 0; \ (bp)->blk_birth = 0; \ (bp)->blk_fill = 0; \ ZIO_SET_CHECKSUM(&(bp)->blk_cksum, 0, 0, 0, 0); \ } -#define BLK_FILL_ALREADY_FREED (-1ULL) - /* * Note: the byteorder is either 0 or -1, both of which are palindromes. * This simplifies the endianness handling a bit. @@ -309,17 +338,81 @@ typedef struct blkptr { #define BP_SPRINTF_LEN 320 +/* + * This macro allows code sharing between zfs, libzpool, and mdb. + * 'func' is either snprintf() or mdb_snprintf(). + * 'ws' (whitespace) can be ' ' for single-line format, '\n' for multi-line. + */ +#define SPRINTF_BLKPTR(func, ws, buf, bp, type, checksum, compress) \ +{ \ + static const char *copyname[] = \ + { "zero", "single", "double", "triple" }; \ + int size = BP_SPRINTF_LEN; \ + int len = 0; \ + int copies = 0; \ + \ + if (bp == NULL) { \ + len = func(buf + len, size - len, "<NULL>"); \ + } else if (BP_IS_HOLE(bp)) { \ + len = func(buf + len, size - len, "<hole>"); \ + } else { \ + for (int d = 0; d < BP_GET_NDVAS(bp); d++) { \ + const dva_t *dva = &bp->blk_dva[d]; \ + if (DVA_IS_VALID(dva)) \ + copies++; \ + len += func(buf + len, size - len, \ + "DVA[%d]=<%llu:%llx:%llx>%c", d, \ + (u_longlong_t)DVA_GET_VDEV(dva), \ + (u_longlong_t)DVA_GET_OFFSET(dva), \ + (u_longlong_t)DVA_GET_ASIZE(dva), \ + ws); \ + } \ + if (BP_IS_GANG(bp) && \ + DVA_GET_ASIZE(&bp->blk_dva[2]) <= \ + DVA_GET_ASIZE(&bp->blk_dva[1]) / 2) \ + copies--; \ + len += func(buf + len, size - len, \ + "[L%llu %s] %s %s %s %s %s %s%c" \ + "size=%llxL/%llxP birth=%lluL/%lluP fill=%llu%c" \ + "cksum=%llx:%llx:%llx:%llx", \ + (u_longlong_t)BP_GET_LEVEL(bp), \ + type, \ + checksum, \ + compress, \ + BP_GET_BYTEORDER(bp) == 0 ? "BE" : "LE", \ + BP_IS_GANG(bp) ? "gang" : "contiguous", \ + BP_GET_DEDUP(bp) ? "dedup" : "unique", \ + copyname[copies], \ + ws, \ + (u_longlong_t)BP_GET_LSIZE(bp), \ + (u_longlong_t)BP_GET_PSIZE(bp), \ + (u_longlong_t)bp->blk_birth, \ + (u_longlong_t)BP_PHYSICAL_BIRTH(bp), \ + (u_longlong_t)bp->blk_fill, \ + ws, \ + (u_longlong_t)bp->blk_cksum.zc_word[0], \ + (u_longlong_t)bp->blk_cksum.zc_word[1], \ + (u_longlong_t)bp->blk_cksum.zc_word[2], \ + (u_longlong_t)bp->blk_cksum.zc_word[3]); \ + } \ + ASSERT(len < size); \ +} + #include <sys/dmu.h> #define BP_GET_BUFC_TYPE(bp) \ (((BP_GET_LEVEL(bp) > 0) || (dmu_ot[BP_GET_TYPE(bp)].ot_metadata)) ? \ ARC_BUFC_METADATA : ARC_BUFC_DATA); -/* - * Routines found in spa.c - */ + +typedef enum spa_import_type { + SPA_IMPORT_EXISTING, + SPA_IMPORT_ASSEMBLE +} spa_import_type_t; /* state manipulation functions */ extern int spa_open(const char *pool, spa_t **, void *tag); +extern int spa_open_rewind(const char *pool, spa_t **, void *tag, + nvlist_t *policy, nvlist_t **config); extern int spa_get_stats(const char *pool, nvlist_t **config, char *altroot, size_t buflen); extern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props, @@ -338,6 +431,8 @@ extern void spa_async_suspend(spa_t *spa); extern void spa_async_resume(spa_t *spa); extern spa_t *spa_inject_addref(char *pool); extern void spa_inject_delref(spa_t *spa); +extern void spa_scan_stat_init(spa_t *spa); +extern int spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps); #define SPA_ASYNC_CONFIG_UPDATE 0x01 #define SPA_ASYNC_REMOVE 0x02 @@ -345,6 +440,14 @@ extern void spa_inject_delref(spa_t *spa); #define SPA_ASYNC_RESILVER_DONE 0x08 #define SPA_ASYNC_RESILVER 0x10 #define SPA_ASYNC_AUTOEXPAND 0x20 +#define SPA_ASYNC_REMOVE_DONE 0x40 +#define SPA_ASYNC_REMOVE_STOP 0x80 + +/* + * Controls the behavior of spa_vdev_remove(). + */ +#define SPA_REMOVE_UNSPARE 0x01 +#define SPA_REMOVE_DONE 0x02 /* device manipulation */ extern int spa_vdev_add(spa_t *spa, nvlist_t *nvroot); @@ -353,8 +456,11 @@ extern int spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, extern int spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done); extern int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare); +extern boolean_t spa_vdev_remove_active(spa_t *spa); extern int spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath); extern int spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru); +extern int spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config, + nvlist_t *props, boolean_t exp); /* spare state (which is global across all pools) */ extern void spa_spare_add(vdev_t *vd); @@ -368,15 +474,23 @@ extern void spa_l2cache_remove(vdev_t *vd); extern boolean_t spa_l2cache_exists(uint64_t guid, uint64_t *pool); extern void spa_l2cache_activate(vdev_t *vd); extern void spa_l2cache_drop(spa_t *spa); -extern void spa_l2cache_space_update(vdev_t *vd, int64_t space, int64_t alloc); -/* scrubbing */ -extern int spa_scrub(spa_t *spa, pool_scrub_type_t type); +/* scanning */ +extern int spa_scan(spa_t *spa, pool_scan_func_t func); +extern int spa_scan_stop(spa_t *spa); /* spa syncing */ extern void spa_sync(spa_t *spa, uint64_t txg); /* only for DMU use */ extern void spa_sync_allpools(void); +/* + * DEFERRED_FREE must be large enough that regular blocks are not + * deferred. XXX so can't we change it back to 1? + */ +#define SYNC_PASS_DEFERRED_FREE 2 /* defer frees after this pass */ +#define SYNC_PASS_DONT_COMPRESS 4 /* don't compress after this pass */ +#define SYNC_PASS_REWRITE 1 /* rewrite new bps after this pass */ + /* spa namespace global mutex */ extern kmutex_t spa_namespace_lock; @@ -394,7 +508,6 @@ extern void spa_config_set(spa_t *spa, nvlist_t *config); extern nvlist_t *spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats); extern void spa_config_update(spa_t *spa, int what); -extern void spa_config_update_common(spa_t *spa, int what, boolean_t isroot); /* * Miscellaneous SPA routines in spa_misc.c @@ -402,7 +515,7 @@ extern void spa_config_update_common(spa_t *spa, int what, boolean_t isroot); /* Namespace manipulation */ extern spa_t *spa_lookup(const char *name); -extern spa_t *spa_add(const char *name, const char *altroot); +extern spa_t *spa_add(const char *name, nvlist_t *config, const char *altroot); extern void spa_remove(spa_t *spa); extern spa_t *spa_next(spa_t *prev); @@ -411,6 +524,7 @@ extern void spa_open_ref(spa_t *spa, void *tag); extern void spa_close(spa_t *spa, void *tag); extern boolean_t spa_refcount_zero(spa_t *spa); +#define SCL_NONE 0x00 #define SCL_CONFIG 0x01 #define SCL_STATE 0x02 #define SCL_L2ARC 0x04 /* hack until L2ARC 2.0 */ @@ -430,12 +544,30 @@ extern int spa_config_held(spa_t *spa, int locks, krw_t rw); /* Pool vdev add/remove lock */ extern uint64_t spa_vdev_enter(spa_t *spa); +extern uint64_t spa_vdev_config_enter(spa_t *spa); +extern void spa_vdev_config_exit(spa_t *spa, vdev_t *vd, uint64_t txg, + int error, char *tag); extern int spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error); /* Pool vdev state change lock */ -extern void spa_vdev_state_enter(spa_t *spa); +extern void spa_vdev_state_enter(spa_t *spa, int oplock); extern int spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error); +/* Log state */ +typedef enum spa_log_state { + SPA_LOG_UNKNOWN = 0, /* unknown log state */ + SPA_LOG_MISSING, /* missing log(s) */ + SPA_LOG_CLEAR, /* clear the log(s) */ + SPA_LOG_GOOD, /* log(s) are good */ +} spa_log_state_t; + +extern spa_log_state_t spa_get_log_state(spa_t *spa); +extern void spa_set_log_state(spa_t *spa, spa_log_state_t state); +extern int spa_offline_log(spa_t *spa); + +/* Log claim callback */ +extern void spa_claim_notify(zio_t *zio); + /* Accessor functions */ extern boolean_t spa_shutting_down(spa_t *spa); extern struct dsl_pool *spa_get_dsl(spa_t *spa); @@ -447,18 +579,26 @@ extern char *spa_name(spa_t *spa); extern uint64_t spa_guid(spa_t *spa); extern uint64_t spa_last_synced_txg(spa_t *spa); extern uint64_t spa_first_txg(spa_t *spa); +extern uint64_t spa_syncing_txg(spa_t *spa); extern uint64_t spa_version(spa_t *spa); extern pool_state_t spa_state(spa_t *spa); +extern spa_load_state_t spa_load_state(spa_t *spa); extern uint64_t spa_freeze_txg(spa_t *spa); -extern uint64_t spa_get_alloc(spa_t *spa); -extern uint64_t spa_get_space(spa_t *spa); -extern uint64_t spa_get_dspace(spa_t *spa); extern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize); +extern uint64_t spa_get_dspace(spa_t *spa); +extern void spa_update_dspace(spa_t *spa); extern uint64_t spa_version(spa_t *spa); +extern boolean_t spa_deflate(spa_t *spa); +extern metaslab_class_t *spa_normal_class(spa_t *spa); +extern metaslab_class_t *spa_log_class(spa_t *spa); extern int spa_max_replication(spa_t *spa); +extern int spa_prev_software_version(spa_t *spa); extern int spa_busy(void); extern uint8_t spa_get_failmode(spa_t *spa); extern boolean_t spa_suspended(spa_t *spa); +extern uint64_t spa_bootfs(spa_t *spa); +extern uint64_t spa_delegation(spa_t *spa); +extern objset_t *spa_meta_objset(spa_t *spa); /* Miscellaneous support routines */ extern int spa_rename(const char *oldname, const char *newname); @@ -466,18 +606,24 @@ extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid); extern char *spa_strdup(const char *); extern void spa_strfree(char *); extern uint64_t spa_get_random(uint64_t range); -extern void sprintf_blkptr(char *buf, int len, const blkptr_t *bp); +extern uint64_t spa_generate_guid(spa_t *spa); +extern void sprintf_blkptr(char *buf, const blkptr_t *bp); extern void spa_freeze(spa_t *spa); extern void spa_upgrade(spa_t *spa, uint64_t version); extern void spa_evict_all(void); extern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t l2cache); extern boolean_t spa_has_spare(spa_t *, uint64_t guid); -extern uint64_t bp_get_dasize(spa_t *spa, const blkptr_t *bp); +extern uint64_t dva_get_dsize_sync(spa_t *spa, const dva_t *dva); +extern uint64_t bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp); +extern uint64_t bp_get_dsize(spa_t *spa, const blkptr_t *bp); extern boolean_t spa_has_slogs(spa_t *spa); extern boolean_t spa_is_root(spa_t *spa); extern boolean_t spa_writeable(spa_t *spa); +extern void spa_rewind_data_to_nvlist(spa_t *spa, nvlist_t *to); + extern int spa_mode(spa_t *spa); +extern uint64_t strtonum(const char *str, char **nptr); /* history logging */ typedef enum history_log_type { @@ -487,10 +633,11 @@ typedef enum history_log_type { } history_log_type_t; typedef struct history_arg { - const char *ha_history_str; + char *ha_history_str; history_log_type_t ha_log_type; history_internal_events_t ha_event; - char ha_zone[MAXPATHLEN]; + char *ha_zone; + uid_t ha_uid; } history_arg_t; extern char *spa_his_ievent_table[]; @@ -500,17 +647,17 @@ extern int spa_history_get(spa_t *spa, uint64_t *offset, uint64_t *len_read, char *his_buf); extern int spa_history_log(spa_t *spa, const char *his_buf, history_log_type_t what); -extern void spa_history_internal_log(history_internal_events_t event, - spa_t *spa, dmu_tx_t *tx, cred_t *cr, const char *fmt, ...); +extern void spa_history_log_internal(history_internal_events_t event, + spa_t *spa, dmu_tx_t *tx, const char *fmt, ...); extern void spa_history_log_version(spa_t *spa, history_internal_events_t evt); /* error handling */ struct zbookmark; -struct zio; -extern void spa_log_error(spa_t *spa, struct zio *zio); +extern void spa_log_error(spa_t *spa, zio_t *zio); extern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd, - struct zio *zio, uint64_t stateoroffset, uint64_t length); + zio_t *zio, uint64_t stateoroffset, uint64_t length); extern void zfs_post_remove(spa_t *spa, vdev_t *vd); +extern void zfs_post_state_change(spa_t *spa, vdev_t *vd); extern void zfs_post_autoreplace(spa_t *spa, vdev_t *vd); extern uint64_t spa_get_errlog_size(spa_t *spa); extern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count); @@ -541,7 +688,7 @@ extern void spa_event_notify(spa_t *spa, vdev_t *vdev, const char *name); #define dprintf_bp(bp, fmt, ...) do { \ if (zfs_flags & ZFS_DEBUG_DPRINTF) { \ char *__blkbuf = kmem_alloc(BP_SPRINTF_LEN, KM_SLEEP); \ - sprintf_blkptr(__blkbuf, BP_SPRINTF_LEN, (bp)); \ + sprintf_blkptr(__blkbuf, (bp)); \ dprintf(fmt " %s\n", __VA_ARGS__, __blkbuf); \ kmem_free(__blkbuf, BP_SPRINTF_LEN); \ } \ diff --git a/module/zfs/include/sys/spa_impl.h b/module/zfs/include/sys/spa_impl.h index 84da68488..e2e1851ec 100644 --- a/module/zfs/include/sys/spa_impl.h +++ b/module/zfs/include/sys/spa_impl.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_SPA_IMPL_H @@ -36,6 +35,7 @@ #include <sys/avl.h> #include <sys/refcount.h> #include <sys/bplist.h> +#include <sys/bpobj.h> #ifdef __cplusplus extern "C" { @@ -78,19 +78,33 @@ typedef struct spa_config_dirent { char *scd_path; } spa_config_dirent_t; -typedef enum spa_log_state { - SPA_LOG_UNKNOWN = 0, /* unknown log state */ - SPA_LOG_MISSING, /* missing log(s) */ - SPA_LOG_CLEAR, /* clear the log(s) */ - SPA_LOG_GOOD, /* log(s) are good */ -} spa_log_state_t; - enum zio_taskq_type { ZIO_TASKQ_ISSUE = 0, + ZIO_TASKQ_ISSUE_HIGH, ZIO_TASKQ_INTERRUPT, + ZIO_TASKQ_INTERRUPT_HIGH, ZIO_TASKQ_TYPES }; +/* + * State machine for the zpool-pooname process. The states transitions + * are done as follows: + * + * From To Routine + * PROC_NONE -> PROC_CREATED spa_activate() + * PROC_CREATED -> PROC_ACTIVE spa_thread() + * PROC_ACTIVE -> PROC_DEACTIVATE spa_deactivate() + * PROC_DEACTIVATE -> PROC_GONE spa_thread() + * PROC_GONE -> PROC_NONE spa_deactivate() + */ +typedef enum spa_proc_state { + SPA_PROC_NONE, /* spa_proc = &p0, no process created */ + SPA_PROC_CREATED, /* spa_activate() has proc, is waiting */ + SPA_PROC_ACTIVE, /* taskqs created, spa_proc set */ + SPA_PROC_DEACTIVATE, /* spa_deactivate() requests process exit */ + SPA_PROC_GONE /* spa_thread() is exiting, spa_proc = &p0 */ +} spa_proc_state_t; + struct spa { /* * Fields protected by spa_namespace_lock. @@ -99,6 +113,7 @@ struct spa { avl_node_t spa_avl; /* node in spa_namespace_avl */ nvlist_t *spa_config; /* last synced config */ nvlist_t *spa_config_syncing; /* currently syncing config */ + nvlist_t *spa_config_splitting; /* config for splitting */ uint64_t spa_config_txg; /* txg of last config change */ int spa_sync_pass; /* iterate-to-convergence */ pool_state_t spa_state; /* pool state */ @@ -113,6 +128,8 @@ struct spa { uint64_t spa_first_txg; /* first txg after spa_open() */ uint64_t spa_final_txg; /* txg of export/destroy */ uint64_t spa_freeze_txg; /* freeze pool at this txg */ + uint64_t spa_load_max_txg; /* best initial ub_txg */ + uint64_t spa_claim_max_txg; /* highest claimed birth txg */ objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ vdev_t *spa_root_vdev; /* top-level vdev container */ @@ -122,21 +139,24 @@ struct spa { spa_aux_vdev_t spa_spares; /* hot spares */ spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ uint64_t spa_config_object; /* MOS object for pool config */ + uint64_t spa_config_generation; /* config generation number */ uint64_t spa_syncing_txg; /* txg currently syncing */ - uint64_t spa_sync_bplist_obj; /* object for deferred frees */ - bplist_t spa_sync_bplist; /* deferred-free bplist */ + bpobj_t spa_deferred_bpobj; /* deferred-free bplist */ + bplist_t spa_free_bplist[TXG_SIZE]; /* bplist of stuff to free */ uberblock_t spa_ubsync; /* last synced uberblock */ uberblock_t spa_uberblock; /* current uberblock */ + boolean_t spa_extreme_rewind; /* rewind past deferred frees */ kmutex_t spa_scrub_lock; /* resilver/scrub lock */ uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ uint64_t spa_scrub_maxinflight; /* max in-flight scrub I/Os */ - uint64_t spa_scrub_errors; /* scrub I/O error count */ kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ uint8_t spa_scrub_active; /* active or suspended? */ uint8_t spa_scrub_type; /* type of scrub we're doing */ uint8_t spa_scrub_finished; /* indicator to rotate logs */ uint8_t spa_scrub_started; /* started since last boot */ uint8_t spa_scrub_reopen; /* scrub doing vdev_reopen */ + uint64_t spa_scan_pass_start; /* start time per pass/reboot */ + uint64_t spa_scan_pass_exam; /* examined bytes per pass */ kmutex_t spa_async_lock; /* protect async state */ kthread_t *spa_async_thread; /* thread doing async task */ int spa_async_suspended; /* async tasks suspended */ @@ -144,7 +164,14 @@ struct spa { uint16_t spa_async_tasks; /* async task mask */ char *spa_root; /* alternate root directory */ uint64_t spa_ena; /* spa-wide ereport ENA */ - boolean_t spa_last_open_failed; /* true if last open faled */ + int spa_last_open_failed; /* error if last open failed */ + uint64_t spa_last_ubsync_txg; /* "best" uberblock txg */ + uint64_t spa_last_ubsync_txg_ts; /* timestamp from that ub */ + uint64_t spa_load_txg; /* ub txg that loaded */ + uint64_t spa_load_txg_ts; /* timestamp from that ub */ + uint64_t spa_load_meta_errors; /* verify metadata err count */ + uint64_t spa_load_data_errors; /* verify data err count */ + uint64_t spa_verify_min_txg; /* start txg of verify scrub */ kmutex_t spa_errlog_lock; /* error log lock */ uint64_t spa_errlog_last; /* last error log object */ uint64_t spa_errlog_scrub; /* scrub error log object */ @@ -166,11 +193,27 @@ struct spa { kmutex_t spa_suspend_lock; /* protects suspend_zio_root */ kcondvar_t spa_suspend_cv; /* notification of resume */ uint8_t spa_suspended; /* pool is suspended */ + uint8_t spa_claiming; /* pool is doing zil_claim() */ boolean_t spa_is_root; /* pool is root */ int spa_minref; /* num refs when first opened */ int spa_mode; /* FREAD | FWRITE */ spa_log_state_t spa_log_state; /* log state */ uint64_t spa_autoexpand; /* lun expansion on/off */ + ddt_t *spa_ddt[ZIO_CHECKSUM_FUNCTIONS]; /* in-core DDTs */ + uint64_t spa_ddt_stat_object; /* DDT statistics */ + uint64_t spa_dedup_ditto; /* dedup ditto threshold */ + uint64_t spa_dedup_checksum; /* default dedup checksum */ + uint64_t spa_dspace; /* dspace in normal class */ + kmutex_t spa_vdev_top_lock; /* dueling offline/remove */ + kmutex_t spa_proc_lock; /* protects spa_proc* */ + kcondvar_t spa_proc_cv; /* spa_proc_state transitions */ + spa_proc_state_t spa_proc_state; /* see definition */ + struct proc *spa_proc; /* "zpool-poolname" process */ + uint64_t spa_did; /* if procp != p0, did of t1 */ + boolean_t spa_autoreplace; /* autoreplace set in open */ + int spa_vdev_locks; /* locks grabbed */ + uint64_t spa_creation_version; /* version at pool creation */ + uint64_t spa_prev_software_version; /* * spa_refcnt & spa_config_lock must be the last elements * because refcount_t changes size based on compilation options. @@ -183,12 +226,6 @@ struct spa { extern const char *spa_config_path; -#define BOOTFS_COMPRESS_VALID(compress) \ - ((compress) == ZIO_COMPRESS_LZJB || \ - ((compress) == ZIO_COMPRESS_ON && \ - ZIO_COMPRESS_ON_VALUE == ZIO_COMPRESS_LZJB) || \ - (compress) == ZIO_COMPRESS_OFF) - #ifdef __cplusplus } #endif diff --git a/module/zfs/include/sys/space_map.h b/module/zfs/include/sys/space_map.h index a682bbd40..6f935c9db 100644 --- a/module/zfs/include/sys/space_map.h +++ b/module/zfs/include/sys/space_map.h @@ -77,6 +77,7 @@ struct space_map_ops { void (*smop_claim)(space_map_t *sm, uint64_t start, uint64_t size); void (*smop_free)(space_map_t *sm, uint64_t start, uint64_t size); uint64_t (*smop_max)(space_map_t *sm); + boolean_t (*smop_fragmented)(space_map_t *sm); }; /* diff --git a/module/zfs/include/sys/txg.h b/module/zfs/include/sys/txg.h index 23bdff211..e323d5efa 100644 --- a/module/zfs/include/sys/txg.h +++ b/module/zfs/include/sys/txg.h @@ -19,15 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_TXG_H #define _SYS_TXG_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/spa.h> #include <sys/zfs_context.h> @@ -41,6 +39,9 @@ extern "C" { #define TXG_INITIAL TXG_SIZE /* initial txg */ #define TXG_IDX (txg & TXG_MASK) +/* Number of txgs worth of frees we defer adding to in-core spacemaps */ +#define TXG_DEFER_SIZE 2 + #define TXG_WAIT 1ULL #define TXG_NOWAIT 2ULL @@ -71,8 +72,7 @@ extern void txg_sync_stop(struct dsl_pool *dp); extern uint64_t txg_hold_open(struct dsl_pool *dp, txg_handle_t *txghp); extern void txg_rele_to_quiesce(txg_handle_t *txghp); extern void txg_rele_to_sync(txg_handle_t *txghp); -extern void txg_suspend(struct dsl_pool *dp); -extern void txg_resume(struct dsl_pool *dp); +extern void txg_register_callbacks(txg_handle_t *txghp, list_t *tx_callbacks); /* * Delay the caller by the specified number of ticks or until @@ -117,6 +117,7 @@ extern void txg_list_create(txg_list_t *tl, size_t offset); extern void txg_list_destroy(txg_list_t *tl); extern int txg_list_empty(txg_list_t *tl, uint64_t txg); extern int txg_list_add(txg_list_t *tl, void *p, uint64_t txg); +extern int txg_list_add_tail(txg_list_t *tl, void *p, uint64_t txg); extern void *txg_list_remove(txg_list_t *tl, uint64_t txg); extern void *txg_list_remove_this(txg_list_t *tl, void *p, uint64_t txg); extern int txg_list_member(txg_list_t *tl, void *p, uint64_t txg); diff --git a/module/zfs/include/sys/txg_impl.h b/module/zfs/include/sys/txg_impl.h index 7413c662b..7b356eac1 100644 --- a/module/zfs/include/sys/txg_impl.h +++ b/module/zfs/include/sys/txg_impl.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -37,13 +37,13 @@ struct tx_cpu { kmutex_t tc_lock; kcondvar_t tc_cv[TXG_SIZE]; uint64_t tc_count[TXG_SIZE]; + list_t tc_callbacks[TXG_SIZE]; /* commit cb list */ char tc_pad[16]; }; typedef struct tx_state { tx_cpu_t *tx_cpu; /* protects right to enter txg */ kmutex_t tx_sync_lock; /* protects tx_state_t */ - krwlock_t tx_suspend; uint64_t tx_open_txg; /* currently open txg id */ uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */ uint64_t tx_syncing_txg; /* currently syncing txg id */ @@ -64,6 +64,8 @@ typedef struct tx_state { kthread_t *tx_sync_thread; kthread_t *tx_quiesce_thread; + + taskq_t *tx_commit_cb_taskq; /* commit callback taskq */ } tx_state_t; #ifdef __cplusplus diff --git a/module/zfs/include/sys/uberblock.h b/module/zfs/include/sys/uberblock.h index 93d936ae4..b5bb91573 100644 --- a/module/zfs/include/sys/uberblock.h +++ b/module/zfs/include/sys/uberblock.h @@ -2,9 +2,8 @@ * CDDL HEADER START * * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. @@ -20,19 +19,16 @@ * CDDL HEADER END */ /* - * Copyright 2005 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_UBERBLOCK_H #define _SYS_UBERBLOCK_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/spa.h> #include <sys/vdev.h> #include <sys/zio.h> -#include <sys/zio_checksum.h> #ifdef __cplusplus extern "C" { diff --git a/module/zfs/include/sys/uberblock_impl.h b/module/zfs/include/sys/uberblock_impl.h index b49df8ae0..6ab6aa313 100644 --- a/module/zfs/include/sys/uberblock_impl.h +++ b/module/zfs/include/sys/uberblock_impl.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_UBERBLOCK_IMPL_H @@ -33,11 +32,6 @@ extern "C" { #endif /* - * For zdb use and debugging purposes only - */ -extern uint64_t ub_max_txg; - -/* * The uberblock version is incremented whenever an incompatible on-disk * format change is made to the SPA, DMU, or ZAP. * @@ -57,6 +51,9 @@ struct uberblock { uint64_t ub_guid_sum; /* sum of all vdev guids */ uint64_t ub_timestamp; /* UTC time of last sync */ blkptr_t ub_rootbp; /* MOS objset_phys_t */ + + /* highest SPA_VERSION supported by software that wrote this txg */ + uint64_t ub_software_version; }; #ifdef __cplusplus diff --git a/module/zfs/include/sys/vdev.h b/module/zfs/include/sys/vdev.h index 7e53f62d2..941f234dc 100644 --- a/module/zfs/include/sys/vdev.h +++ b/module/zfs/include/sys/vdev.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_VDEV_H @@ -47,7 +46,8 @@ typedef enum vdev_dtl_type { extern boolean_t zfs_nocacheflush; extern int vdev_open(vdev_t *); -extern void vdev_open_children(vdev_t *vd); +extern void vdev_open_children(vdev_t *); +extern boolean_t vdev_uses_zvols(vdev_t *); extern int vdev_validate(vdev_t *); extern void vdev_close(vdev_t *); extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace); @@ -69,28 +69,31 @@ extern boolean_t vdev_dtl_required(vdev_t *vd); extern boolean_t vdev_resilver_needed(vdev_t *vd, uint64_t *minp, uint64_t *maxp); +extern void vdev_hold(vdev_t *); +extern void vdev_rele(vdev_t *); + extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg); extern void vdev_metaslab_fini(vdev_t *vd); extern void vdev_metaslab_set_size(vdev_t *); extern void vdev_expand(vdev_t *vd, uint64_t txg); +extern void vdev_split(vdev_t *vd); + extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs); extern void vdev_clear_stats(vdev_t *vd); extern void vdev_stat_update(zio_t *zio, uint64_t psize); -extern void vdev_scrub_stat_update(vdev_t *vd, pool_scrub_type_t type, - boolean_t complete); -extern int vdev_getspec(spa_t *spa, uint64_t vdev, char **vdev_spec); +extern void vdev_scan_stat_init(vdev_t *vd); extern void vdev_propagate_state(vdev_t *vd); extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, vdev_aux_t aux); -extern void vdev_space_update(vdev_t *vd, int64_t space_delta, - int64_t alloc_delta, boolean_t update_root); +extern void vdev_space_update(vdev_t *vd, + int64_t alloc_delta, int64_t defer_delta, int64_t space_delta); extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize); -extern int vdev_fault(spa_t *spa, uint64_t guid); -extern int vdev_degrade(spa_t *spa, uint64_t guid); +extern int vdev_fault(spa_t *spa, uint64_t guid, vdev_aux_t aux); +extern int vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux); extern int vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, vdev_state_t *); extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags); @@ -121,8 +124,15 @@ extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg, extern void vdev_state_dirty(vdev_t *vd); extern void vdev_state_clean(vdev_t *vd); +typedef enum vdev_config_flag { + VDEV_CONFIG_SPARE = 1 << 0, + VDEV_CONFIG_L2CACHE = 1 << 1, + VDEV_CONFIG_REMOVING = 1 << 2 +} vdev_config_flag_t; + +extern void vdev_top_config_generate(spa_t *spa, nvlist_t *config); extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd, - boolean_t getstats, boolean_t isspare, boolean_t isl2cache); + boolean_t getstats, vdev_config_flag_t flags); /* * Label routines @@ -138,7 +148,8 @@ typedef enum { VDEV_LABEL_REPLACE, /* replace an existing device */ VDEV_LABEL_SPARE, /* add a new hot spare */ VDEV_LABEL_REMOVE, /* remove an existing device */ - VDEV_LABEL_L2CACHE /* add an L2ARC cache device */ + VDEV_LABEL_L2CACHE, /* add an L2ARC cache device */ + VDEV_LABEL_SPLIT /* generating new label for split-off dev */ } vdev_labeltype_t; extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason); diff --git a/module/zfs/include/sys/vdev_impl.h b/module/zfs/include/sys/vdev_impl.h index 23780430d..2b886bc58 100644 --- a/module/zfs/include/sys/vdev_impl.h +++ b/module/zfs/include/sys/vdev_impl.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_VDEV_IMPL_H @@ -62,6 +61,8 @@ typedef uint64_t vdev_asize_func_t(vdev_t *vd, uint64_t psize); typedef int vdev_io_start_func_t(zio_t *zio); typedef void vdev_io_done_func_t(zio_t *zio); typedef void vdev_state_change_func_t(vdev_t *vd, int, int); +typedef void vdev_hold_func_t(vdev_t *vd); +typedef void vdev_rele_func_t(vdev_t *vd); typedef struct vdev_ops { vdev_open_func_t *vdev_op_open; @@ -70,6 +71,8 @@ typedef struct vdev_ops { vdev_io_start_func_t *vdev_op_io_start; vdev_io_done_func_t *vdev_op_io_done; vdev_state_change_func_t *vdev_op_state_change; + vdev_hold_func_t *vdev_op_hold; + vdev_rele_func_t *vdev_op_rele; char vdev_op_type[16]; boolean_t vdev_op_leaf; } vdev_ops_t; @@ -112,6 +115,7 @@ struct vdev { uint64_t vdev_id; /* child number in vdev parent */ uint64_t vdev_guid; /* unique ID for this vdev */ uint64_t vdev_guid_sum; /* self guid + all child guids */ + uint64_t vdev_orig_guid; /* orig. guid prior to remove */ uint64_t vdev_asize; /* allocatable device capacity */ uint64_t vdev_min_asize; /* min acceptable asize */ uint64_t vdev_ashift; /* block alignment shift */ @@ -120,6 +124,8 @@ struct vdev { vdev_ops_t *vdev_ops; /* vdev operations */ spa_t *vdev_spa; /* spa for this vdev */ void *vdev_tsd; /* type-specific data */ + vnode_t *vdev_name_vp; /* vnode for pathname */ + vnode_t *vdev_devid_vp; /* vnode for devid */ vdev_t *vdev_top; /* top-level vdev */ vdev_t *vdev_parent; /* parent vdev */ vdev_t **vdev_child; /* array of children */ @@ -127,8 +133,10 @@ struct vdev { space_map_t vdev_dtl[DTL_TYPES]; /* in-core dirty time logs */ vdev_stat_t vdev_stat; /* virtual device statistics */ boolean_t vdev_expanding; /* expand the vdev? */ + boolean_t vdev_reopening; /* reopen in progress? */ int vdev_open_error; /* error on last open */ kthread_t *vdev_open_thread; /* thread opening children */ + uint64_t vdev_crtxg; /* txg when top-level was added */ /* * Top-level vdev state. @@ -143,10 +151,12 @@ struct vdev { txg_node_t vdev_txg_node; /* per-txg dirty vdev linkage */ boolean_t vdev_remove_wanted; /* async remove wanted? */ boolean_t vdev_probe_wanted; /* async probe wanted? */ + uint64_t vdev_removing; /* device is being removed? */ list_node_t vdev_config_dirty_node; /* config dirty list */ list_node_t vdev_state_dirty_node; /* state dirty list */ uint64_t vdev_deflate_ratio; /* deflation ratio (x512) */ uint64_t vdev_islog; /* is an intent log device */ + uint64_t vdev_ishole; /* is a hole in the namespace */ /* * Leaf vdev state. @@ -170,6 +180,8 @@ struct vdev { boolean_t vdev_nowritecache; /* true if flushwritecache failed */ boolean_t vdev_checkremove; /* temporary online test */ boolean_t vdev_forcefault; /* force online fault */ + boolean_t vdev_splitting; /* split or repair in progress */ + boolean_t vdev_delayed_close; /* delayed device close? */ uint8_t vdev_tmpoffline; /* device taken offline temporarily? */ uint8_t vdev_detached; /* device detached? */ uint8_t vdev_cant_read; /* vdev is failing all reads */ @@ -180,6 +192,7 @@ struct vdev { vdev_cache_t vdev_cache; /* physical block cache */ spa_aux_vdev_t *vdev_aux; /* for l2cache vdevs */ zio_t *vdev_probe_zio; /* root of current probe */ + vdev_aux_t vdev_label_aux; /* on-disk aux state */ /* * For DTrace to work in userland (libzpool) context, these fields must @@ -193,6 +206,8 @@ struct vdev { kmutex_t vdev_probe_lock; /* protects vdev_probe_zio */ }; +#define VDEV_RAIDZ_MAXPARITY 3 + #define VDEV_PAD_SIZE (8 << 10) /* 2 padding areas (vl_pad1 and vl_pad2) to skip */ #define VDEV_SKIP_SIZE VDEV_PAD_SIZE * 2 @@ -208,8 +223,8 @@ struct vdev { #define VDEV_UBERBLOCK_SIZE(vd) (1ULL << VDEV_UBERBLOCK_SHIFT(vd)) typedef struct vdev_phys { - char vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_block_tail_t)]; - zio_block_tail_t vp_zbt; + char vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_eck_t)]; + zio_eck_t vp_zbt; } vdev_phys_t; typedef struct vdev_label { @@ -244,10 +259,13 @@ typedef struct vdev_label { #define VDEV_ALLOC_SPARE 2 #define VDEV_ALLOC_L2CACHE 3 #define VDEV_ALLOC_ROOTPOOL 4 +#define VDEV_ALLOC_SPLIT 5 /* * Allocate or free a vdev */ +extern vdev_t *vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, + vdev_ops_t *ops); extern int vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *config, vdev_t *parent, uint_t id, int alloctype); extern void vdev_free(vdev_t *vd); @@ -264,7 +282,7 @@ extern void vdev_remove_parent(vdev_t *cvd); /* * vdev sync load and sync */ -extern void vdev_load_log_state(vdev_t *vd, nvlist_t *nv); +extern void vdev_load_log_state(vdev_t *nvd, vdev_t *ovd); extern void vdev_load(vdev_t *vd); extern void vdev_sync(vdev_t *vd, uint64_t txg); extern void vdev_sync_done(vdev_t *vd, uint64_t txg); @@ -280,6 +298,7 @@ extern vdev_ops_t vdev_raidz_ops; extern vdev_ops_t vdev_disk_ops; extern vdev_ops_t vdev_file_ops; extern vdev_ops_t vdev_missing_ops; +extern vdev_ops_t vdev_hole_ops; extern vdev_ops_t vdev_spare_ops; /* diff --git a/module/zfs/include/sys/zap.h b/module/zfs/include/sys/zap.h index 967174be4..a1130bbba 100644 --- a/module/zfs/include/sys/zap.h +++ b/module/zfs/include/sys/zap.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ZAP_H @@ -101,6 +100,18 @@ typedef enum matchtype MT_FIRST } matchtype_t; +typedef enum zap_flags { + /* Use 64-bit hash value (serialized cursors will always use 64-bits) */ + ZAP_FLAG_HASH64 = 1 << 0, + /* Key is binary, not string (zap_add_uint64() can be used) */ + ZAP_FLAG_UINT64_KEY = 1 << 1, + /* + * First word of key (which must be an array of uint64) is + * already randomly distributed. + */ + ZAP_FLAG_PRE_HASHED_KEY = 1 << 2, +} zap_flags_t; + /* * Create a new zapobj with no attributes and return its object number. * MT_EXACT will cause the zap object to only support MT_EXACT lookups, @@ -118,6 +129,9 @@ uint64_t zap_create(objset_t *ds, dmu_object_type_t ot, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx); uint64_t zap_create_norm(objset_t *ds, int normflags, dmu_object_type_t ot, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx); +uint64_t zap_create_flags(objset_t *os, int normflags, zap_flags_t flags, + dmu_object_type_t ot, int leaf_blockshift, int indirect_blockshift, + dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx); /* * Create a new zapobj with no attributes from the given (unallocated) @@ -180,6 +194,11 @@ int zap_lookup_norm(objset_t *ds, uint64_t zapobj, const char *name, uint64_t integer_size, uint64_t num_integers, void *buf, matchtype_t mt, char *realname, int rn_len, boolean_t *normalization_conflictp); +int zap_lookup_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf); +int zap_contains(objset_t *ds, uint64_t zapobj, const char *name); +int zap_prefetch_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints); int zap_count_write(objset_t *os, uint64_t zapobj, const char *name, int add, uint64_t *towrite, uint64_t *tooverwrite); @@ -190,9 +209,12 @@ int zap_count_write(objset_t *os, uint64_t zapobj, const char *name, * If an attribute with the given name already exists, the call will * fail and return EEXIST. */ -int zap_add(objset_t *ds, uint64_t zapobj, const char *name, +int zap_add(objset_t *ds, uint64_t zapobj, const char *key, int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx); +int zap_add_uint64(objset_t *ds, uint64_t zapobj, const uint64_t *key, + int key_numints, int integer_size, uint64_t num_integers, + const void *val, dmu_tx_t *tx); /* * Set the attribute with the given name to the given value. If an @@ -204,6 +226,9 @@ int zap_add(objset_t *ds, uint64_t zapobj, const char *name, */ int zap_update(objset_t *ds, uint64_t zapobj, const char *name, int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx); +int zap_update_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, + int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx); /* * Get the length (in integers) and the integer size of the specified @@ -214,6 +239,8 @@ int zap_update(objset_t *ds, uint64_t zapobj, const char *name, */ int zap_length(objset_t *ds, uint64_t zapobj, const char *name, uint64_t *integer_size, uint64_t *num_integers); +int zap_length_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, uint64_t *integer_size, uint64_t *num_integers); /* * Remove the specified attribute. @@ -224,6 +251,8 @@ int zap_length(objset_t *ds, uint64_t zapobj, const char *name, int zap_remove(objset_t *ds, uint64_t zapobj, const char *name, dmu_tx_t *tx); int zap_remove_norm(objset_t *ds, uint64_t zapobj, const char *name, matchtype_t mt, dmu_tx_t *tx); +int zap_remove_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, dmu_tx_t *tx); /* * Returns (in *count) the number of attributes in the specified zap @@ -231,7 +260,6 @@ int zap_remove_norm(objset_t *ds, uint64_t zapobj, const char *name, */ int zap_count(objset_t *ds, uint64_t zapobj, uint64_t *count); - /* * Returns (in name) the name of the entry whose (value & mask) * (za_first_integer) is value, or ENOENT if not found. The string @@ -248,6 +276,14 @@ int zap_value_search(objset_t *os, uint64_t zapobj, */ int zap_join(objset_t *os, uint64_t fromobj, uint64_t intoobj, dmu_tx_t *tx); +/* Same as zap_join, but set the values to 'value'. */ +int zap_join_key(objset_t *os, uint64_t fromobj, uint64_t intoobj, + uint64_t value, dmu_tx_t *tx); + +/* Same as zap_join, but add together any duplicated entries. */ +int zap_join_increment(objset_t *os, uint64_t fromobj, uint64_t intoobj, + dmu_tx_t *tx); + /* * Manipulate entries where the name + value are the "same" (the name is * a stringified version of the value). @@ -255,6 +291,23 @@ int zap_join(objset_t *os, uint64_t fromobj, uint64_t intoobj, dmu_tx_t *tx); int zap_add_int(objset_t *os, uint64_t obj, uint64_t value, dmu_tx_t *tx); int zap_remove_int(objset_t *os, uint64_t obj, uint64_t value, dmu_tx_t *tx); int zap_lookup_int(objset_t *os, uint64_t obj, uint64_t value); +int zap_increment_int(objset_t *os, uint64_t obj, uint64_t key, int64_t delta, + dmu_tx_t *tx); + +/* Here the key is an int and the value is a different int. */ +int zap_add_int_key(objset_t *os, uint64_t obj, + uint64_t key, uint64_t value, dmu_tx_t *tx); +int zap_lookup_int_key(objset_t *os, uint64_t obj, + uint64_t key, uint64_t *valuep); + +/* + * They name is a stringified version of key; increment its value by + * delta. Zero values will be zap_remove()-ed. + */ +int zap_increment_int(objset_t *os, uint64_t obj, uint64_t key, int64_t delta, + dmu_tx_t *tx); +int zap_increment(objset_t *os, uint64_t obj, const char *name, int64_t delta, + dmu_tx_t *tx); struct zap; struct zap_leaf; @@ -264,6 +317,7 @@ typedef struct zap_cursor { struct zap *zc_zap; struct zap_leaf *zc_leaf; uint64_t zc_zapobj; + uint64_t zc_serialized; uint64_t zc_hash; uint32_t zc_cd; } zap_cursor_t; @@ -315,6 +369,11 @@ void zap_cursor_advance(zap_cursor_t *zc); uint64_t zap_cursor_serialize(zap_cursor_t *zc); /* + * Advance the cursor to the attribute having the given key. + */ +int zap_cursor_move_to_key(zap_cursor_t *zc, const char *name, matchtype_t mt); + +/* * Initialize a zap cursor pointing to the position recorded by * zap_cursor_serialize (in the "serialized" argument). You can also * use a "serialized" argument of 0 to start at the beginning of the diff --git a/module/zfs/include/sys/zap_impl.h b/module/zfs/include/sys/zap_impl.h index c86bb16de..1dc322e02 100644 --- a/module/zfs/include/sys/zap_impl.h +++ b/module/zfs/include/sys/zap_impl.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ZAP_IMPL_H @@ -40,13 +39,13 @@ extern int fzap_default_block_shift; #define FZAP_BLOCK_SHIFT(zap) ((zap)->zap_f.zap_block_shift) -#define ZAP_MAXCD (uint32_t)(-1) -#define ZAP_HASHBITS 28 #define MZAP_ENT_LEN 64 #define MZAP_NAME_LEN (MZAP_ENT_LEN - 8 - 4 - 2) #define MZAP_MAX_BLKSHIFT SPA_MAXBLOCKSHIFT #define MZAP_MAX_BLKSZ (1 << MZAP_MAX_BLKSHIFT) +#define ZAP_NEED_CD (-1U) + typedef struct mzap_ent_phys { uint64_t mze_value; uint32_t mze_cd; @@ -67,9 +66,11 @@ typedef struct mzap_ent { avl_node_t mze_node; int mze_chunkid; uint64_t mze_hash; - mzap_ent_phys_t mze_phys; + uint32_t mze_cd; /* copy from mze_phys->mze_cd */ } mzap_ent_t; +#define MZE_PHYS(zap, mze) \ + (&(zap)->zap_m.zap_phys->mz_chunk[(mze)->mze_chunkid]) /* * The (fat) zap is stored in one object. It is an array of @@ -127,6 +128,7 @@ typedef struct zap_phys { uint64_t zap_num_entries; /* number of entries */ uint64_t zap_salt; /* salt to stir into hash function */ uint64_t zap_normflags; /* flags for u8_textprep_str() */ + uint64_t zap_flags; /* zap_flags_t */ /* * This structure is followed by padding, and then the embedded * pointer table. The embedded pointer table takes up second @@ -168,10 +170,13 @@ typedef struct zap { typedef struct zap_name { zap_t *zn_zap; - const char *zn_name_orij; + int zn_key_intlen; + const void *zn_key_orig; + int zn_key_orig_numints; + const void *zn_key_norm; + int zn_key_norm_numints; uint64_t zn_hash; matchtype_t zn_matchtype; - const char *zn_name_norm; char zn_normbuf[ZAP_MAXNAMELEN]; } zap_name_t; @@ -183,8 +188,11 @@ int zap_lockdir(objset_t *os, uint64_t obj, dmu_tx_t *tx, krw_t lti, boolean_t fatreader, boolean_t adding, zap_t **zapp); void zap_unlockdir(zap_t *zap); void zap_evict(dmu_buf_t *db, void *vmzap); -zap_name_t *zap_name_alloc(zap_t *zap, const char *name, matchtype_t mt); +zap_name_t *zap_name_alloc(zap_t *zap, const char *key, matchtype_t mt); void zap_name_free(zap_name_t *zn); +int zap_hashbits(zap_t *zap); +uint32_t zap_maxcd(zap_t *zap); +uint64_t zap_getflags(zap_t *zap); #define ZAP_HASH_IDX(hash, n) (((n) == 0) ? 0 : ((hash) >> (64 - (n)))) @@ -193,6 +201,7 @@ int fzap_count(zap_t *zap, uint64_t *count); int fzap_lookup(zap_name_t *zn, uint64_t integer_size, uint64_t num_integers, void *buf, char *realname, int rn_len, boolean_t *normalization_conflictp); +void fzap_prefetch(zap_name_t *zn); int fzap_count_write(zap_name_t *zn, int add, uint64_t *towrite, uint64_t *tooverwrite); int fzap_add(zap_name_t *zn, uint64_t integer_size, uint64_t num_integers, @@ -209,7 +218,8 @@ void zap_put_leaf(struct zap_leaf *l); int fzap_add_cd(zap_name_t *zn, uint64_t integer_size, uint64_t num_integers, const void *val, uint32_t cd, dmu_tx_t *tx); -void fzap_upgrade(zap_t *zap, dmu_tx_t *tx); +void fzap_upgrade(zap_t *zap, dmu_tx_t *tx, zap_flags_t flags); +int fzap_cursor_move_to_key(zap_cursor_t *zc, zap_name_t *zn); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/zap_leaf.h b/module/zfs/include/sys/zap_leaf.h index 14144e059..3a3363674 100644 --- a/module/zfs/include/sys/zap_leaf.h +++ b/module/zfs/include/sys/zap_leaf.h @@ -19,20 +19,21 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ZAP_LEAF_H #define _SYS_ZAP_LEAF_H -#pragma ident "%Z%%M% %I% %E% SMI" +#include <sys/zap.h> #ifdef __cplusplus extern "C" { #endif struct zap; +struct zap_name; +struct zap_stats; #define ZAP_LEAF_MAGIC 0x2AB1EAF @@ -129,12 +130,12 @@ typedef struct zap_leaf_phys { typedef union zap_leaf_chunk { struct zap_leaf_entry { uint8_t le_type; /* always ZAP_CHUNK_ENTRY */ - uint8_t le_int_size; /* size of ints */ + uint8_t le_value_intlen; /* size of value's ints */ uint16_t le_next; /* next entry in hash chain */ uint16_t le_name_chunk; /* first chunk of the name */ - uint16_t le_name_length; /* bytes in name, incl null */ + uint16_t le_name_numints; /* ints in name (incl null) */ uint16_t le_value_chunk; /* first chunk of the value */ - uint16_t le_value_length; /* value length in ints */ + uint16_t le_value_numints; /* value length in ints */ uint32_t le_cd; /* collision differentiator */ uint64_t le_hash; /* hash value of the name */ } l_entry; @@ -177,7 +178,7 @@ typedef struct zap_entry_handle { * value must equal zap_hash(name). */ extern int zap_leaf_lookup(zap_leaf_t *l, - zap_name_t *zn, zap_entry_handle_t *zeh); + struct zap_name *zn, zap_entry_handle_t *zeh); /* * Return a handle to the entry with this hash+cd, or the entry with the @@ -193,10 +194,10 @@ extern int zap_leaf_lookup_closest(zap_leaf_t *l, * num_integers in the attribute. */ extern int zap_entry_read(const zap_entry_handle_t *zeh, - uint8_t integer_size, uint64_t num_integers, void *buf); + uint8_t integer_size, uint64_t num_integers, void *buf); -extern int zap_entry_read_name(const zap_entry_handle_t *zeh, - uint16_t buflen, char *buf); +extern int zap_entry_read_name(struct zap *zap, const zap_entry_handle_t *zeh, + uint16_t buflen, char *buf); /* * Replace the value of an existing entry. @@ -204,7 +205,7 @@ extern int zap_entry_read_name(const zap_entry_handle_t *zeh, * zap_entry_update may fail if it runs out of space (ENOSPC). */ extern int zap_entry_update(zap_entry_handle_t *zeh, - uint8_t integer_size, uint64_t num_integers, const void *buf); + uint8_t integer_size, uint64_t num_integers, const void *buf); /* * Remove an entry. @@ -216,17 +217,16 @@ extern void zap_entry_remove(zap_entry_handle_t *zeh); * belong in this leaf (according to its hash value). Fills in the * entry handle on success. Returns 0 on success or ENOSPC on failure. */ -extern int zap_entry_create(zap_leaf_t *l, - const char *name, uint64_t h, uint32_t cd, - uint8_t integer_size, uint64_t num_integers, const void *buf, - zap_entry_handle_t *zeh); +extern int zap_entry_create(zap_leaf_t *l, struct zap_name *zn, uint32_t cd, + uint8_t integer_size, uint64_t num_integers, const void *buf, + zap_entry_handle_t *zeh); /* * Return true if there are additional entries with the same normalized * form. */ extern boolean_t zap_entry_normalization_conflict(zap_entry_handle_t *zeh, - zap_name_t *zn, const char *name, zap_t *zap); + struct zap_name *zn, const char *name, struct zap *zap); /* * Other stuff. @@ -235,7 +235,8 @@ extern boolean_t zap_entry_normalization_conflict(zap_entry_handle_t *zeh, extern void zap_leaf_init(zap_leaf_t *l, boolean_t sort); extern void zap_leaf_byteswap(zap_leaf_phys_t *buf, int len); extern void zap_leaf_split(zap_leaf_t *l, zap_leaf_t *nl, boolean_t sort); -extern void zap_leaf_stats(zap_t *zap, zap_leaf_t *l, zap_stats_t *zs); +extern void zap_leaf_stats(struct zap *zap, zap_leaf_t *l, + struct zap_stats *zs); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/zfs_acl.h b/module/zfs/include/sys/zfs_acl.h index 3488962e2..72e868fab 100644 --- a/module/zfs/include/sys/zfs_acl.h +++ b/module/zfs/include/sys/zfs_acl.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_FS_ZFS_ACL_H @@ -33,6 +32,7 @@ #include <sys/acl.h> #include <sys/dmu.h> #include <sys/zfs_fuid.h> +#include <sys/sa.h> #ifdef __cplusplus extern "C" { @@ -106,12 +106,18 @@ typedef struct zfs_acl_phys_v0 { #define ZFS_ACE_SPACE (sizeof (zfs_oldace_t) * ACE_SLOT_CNT) +/* + * Size of ACL count is always 2 bytes. + * Necessary to for dealing with both V0 ACL and V1 ACL layout + */ +#define ZFS_ACL_COUNT_SIZE (sizeof (uint16_t)) + typedef struct zfs_acl_phys { uint64_t z_acl_extern_obj; /* ext acl pieces */ uint32_t z_acl_size; /* Number of bytes in ACL */ uint16_t z_acl_version; /* acl version */ uint16_t z_acl_count; /* ace count */ - uint8_t z_ace_data[ZFS_ACE_SPACE]; /* space for embedded ACEs */ + uint8_t z_ace_data[ZFS_ACE_SPACE]; /* space for embedded ACEs */ } zfs_acl_phys_t; typedef struct acl_ops { @@ -146,21 +152,26 @@ typedef struct zfs_acl_node { void *z_allocdata; /* pointer to kmem allocated memory */ size_t z_allocsize; /* Size of blob in bytes */ size_t z_size; /* length of ACL data */ - int z_ace_count; /* number of ACEs in this acl node */ + uint64_t z_ace_count; /* number of ACEs in this acl node */ int z_ace_idx; /* ace iterator positioned on */ } zfs_acl_node_t; typedef struct zfs_acl { - int z_acl_count; /* Number of ACEs */ + uint64_t z_acl_count; /* Number of ACEs */ size_t z_acl_bytes; /* Number of bytes in ACL */ uint_t z_version; /* version of ACL */ void *z_next_ace; /* pointer to next ACE */ - int z_hints; /* ACL hints (ZFS_INHERIT_ACE ...) */ + uint64_t z_hints; /* ACL hints (ZFS_INHERIT_ACE ...) */ zfs_acl_node_t *z_curr_node; /* current node iterator is handling */ list_t z_acl; /* chunks of ACE data */ acl_ops_t z_ops; /* ACL operations */ } zfs_acl_t; +typedef struct acl_locator_cb { + zfs_acl_t *cb_aclp; + zfs_acl_node_t *cb_acl_node; +} zfs_acl_locator_cb_t; + #define ACL_DATA_ALLOCED 0x1 #define ZFS_ACL_SIZE(aclcnt) (sizeof (ace_t) * (aclcnt)) @@ -174,6 +185,10 @@ typedef struct zfs_acl_ids { struct zfs_fuid_info *z_fuidp; /* for tracking fuids for log */ } zfs_acl_ids_t; +#define ZFS_EXTERNAL_ACL(zp) \ + (zp->z_is_sa ? 0 : zfs_external_acl(zp)) +#define ZNODE_ACL_VERSION(zp) \ + (zp->z_is_sa ? ZFS_ACL_VERSION_FUID : zfs_znode_acl_version(zp)) /* * Property values for acl_mode and acl_inherit. * @@ -215,6 +230,16 @@ void zfs_acl_free(zfs_acl_t *); int zfs_vsec_2_aclp(struct zfsvfs *, vtype_t, vsecattr_t *, cred_t *, struct zfs_fuid_info **, zfs_acl_t **); int zfs_aclset_common(struct znode *, zfs_acl_t *, cred_t *, dmu_tx_t *); +uint64_t zfs_external_acl(struct znode *); +int zfs_znode_acl_version(struct znode *); +int zfs_acl_size(struct znode *, int *); +zfs_acl_t *zfs_acl_alloc(int); +zfs_acl_node_t *zfs_acl_node_alloc(size_t); +void zfs_acl_xform(struct znode *, zfs_acl_t *, cred_t *); +void zfs_acl_data_locator(void **, uint32_t *, uint32_t, boolean_t, void *); +uint64_t zfs_mode_compute(uint64_t, zfs_acl_t *, + uint64_t *, uint64_t, uint64_t); +int zfs_acl_chown_setattr(struct znode *); #endif diff --git a/module/zfs/include/sys/zfs_context.h b/module/zfs/include/sys/zfs_context.h index 40de32084..558e9e188 100644 --- a/module/zfs/include/sys/zfs_context.h +++ b/module/zfs/include/sys/zfs_context.h @@ -62,6 +62,7 @@ extern "C" { #include <sys/sysevent/eventdefs.h> #include <sys/sysevent/dev.h> #include <sys/fm/util.h> +#include <sys/sunddi.h> #define CPU_SEQID (CPU->cpu_seqid) diff --git a/module/zfs/include/sys/zfs_ctldir.h b/module/zfs/include/sys/zfs_ctldir.h index c15c946d5..f88ef95fd 100644 --- a/module/zfs/include/sys/zfs_ctldir.h +++ b/module/zfs/include/sys/zfs_ctldir.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _ZFS_CTLDIR_H @@ -49,6 +48,7 @@ void zfsctl_destroy(zfsvfs_t *); vnode_t *zfsctl_root(znode_t *); void zfsctl_init(void); void zfsctl_fini(void); +boolean_t zfsctl_is_node(vnode_t *); int zfsctl_rename_snapshot(const char *from, const char *to); int zfsctl_destroy_snapshot(const char *snapname, int force); diff --git a/module/zfs/include/sys/zfs_debug.h b/module/zfs/include/sys/zfs_debug.h index 450ac1c81..50ecf9b36 100644 --- a/module/zfs/include/sys/zfs_debug.h +++ b/module/zfs/include/sys/zfs_debug.h @@ -19,15 +19,12 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ZFS_DEBUG_H #define _SYS_ZFS_DEBUG_H -#pragma ident "%Z%%M% %I% %E% SMI" - #ifdef __cplusplus extern "C" { #endif @@ -68,6 +65,16 @@ extern void __dprintf(const char *file, const char *func, extern void zfs_panic_recover(const char *fmt, ...); +typedef struct zfs_dbgmsg { + list_node_t zdm_node; + time_t zdm_timestamp; + char zdm_msg[1]; /* variable length allocation */ +} zfs_dbgmsg_t; + +extern void zfs_dbgmsg_init(void); +extern void zfs_dbgmsg_fini(void); +extern void zfs_dbgmsg(const char *fmt, ...); + #ifdef __cplusplus } #endif diff --git a/module/zfs/include/sys/zfs_dir.h b/module/zfs/include/sys/zfs_dir.h index 650315be2..349f8ef37 100644 --- a/module/zfs/include/sys/zfs_dir.h +++ b/module/zfs/include/sys/zfs_dir.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -42,11 +42,11 @@ extern "C" { #define ZRENAMING 0x0010 /* znode is being renamed */ #define ZCILOOK 0x0020 /* case-insensitive lookup requested */ #define ZCIEXACT 0x0040 /* c-i requires c-s match (rename) */ +#define ZHAVELOCK 0x0080 /* z_name_lock is already held */ /* mknode flags */ #define IS_ROOT_NODE 0x01 /* create a root node */ #define IS_XATTR 0x02 /* create an extended attribute node */ -#define IS_REPLAY 0x04 /* we are replaying intent log */ extern int zfs_dirent_lock(zfs_dirlock_t **, znode_t *, char *, znode_t **, int, int *, pathname_t *); @@ -57,7 +57,7 @@ extern int zfs_link_destroy(zfs_dirlock_t *, znode_t *, dmu_tx_t *, int, extern int zfs_dirlook(znode_t *, char *, vnode_t **, int, int *, pathname_t *); extern void zfs_mknode(znode_t *, vattr_t *, dmu_tx_t *, cred_t *, - uint_t, znode_t **, int, zfs_acl_ids_t *); + uint_t, znode_t **, zfs_acl_ids_t *); extern void zfs_rmnode(znode_t *); extern void zfs_dl_name_switch(zfs_dirlock_t *dl, char *new, char **old); extern boolean_t zfs_dirempty(znode_t *); diff --git a/module/zfs/include/sys/zfs_fuid.h b/module/zfs/include/sys/zfs_fuid.h index f81ddf4a5..0feb3ce4b 100644 --- a/module/zfs/include/sys/zfs_fuid.h +++ b/module/zfs/include/sys/zfs_fuid.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -100,6 +100,8 @@ typedef struct zfs_fuid_info { #ifdef _KERNEL struct znode; extern uid_t zfs_fuid_map_id(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t); +extern void zfs_fuid_node_add(zfs_fuid_info_t **, const char *, uint32_t, + uint64_t, uint64_t, zfs_fuid_type_t); extern void zfs_fuid_destroy(zfsvfs_t *); extern uint64_t zfs_fuid_create_cred(zfsvfs_t *, zfs_fuid_type_t, cred_t *, zfs_fuid_info_t **); diff --git a/module/zfs/include/sys/zfs_ioctl.h b/module/zfs/include/sys/zfs_ioctl.h index 3a3e6e711..b0cb4955e 100644 --- a/module/zfs/include/sys/zfs_ioctl.h +++ b/module/zfs/include/sys/zfs_ioctl.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -30,6 +30,7 @@ #include <sys/dmu.h> #include <sys/zio.h> #include <sys/dsl_deleg.h> +#include <sys/spa.h> #ifdef _KERNEL #include <sys/nvpair.h> @@ -45,26 +46,86 @@ extern "C" { #define ZFS_SNAPDIR_HIDDEN 0 #define ZFS_SNAPDIR_VISIBLE 1 -#define DMU_BACKUP_STREAM_VERSION (1ULL) -#define DMU_BACKUP_HEADER_VERSION (2ULL) +/* + * Field manipulation macros for the drr_versioninfo field of the + * send stream header. + */ + +/* + * Header types for zfs send streams. + */ +typedef enum drr_headertype { + DMU_SUBSTREAM = 0x1, + DMU_COMPOUNDSTREAM = 0x2 +} drr_headertype_t; + +#define DMU_GET_STREAM_HDRTYPE(vi) BF64_GET((vi), 0, 2) +#define DMU_SET_STREAM_HDRTYPE(vi, x) BF64_SET((vi), 0, 2, x) + +#define DMU_GET_FEATUREFLAGS(vi) BF64_GET((vi), 2, 30) +#define DMU_SET_FEATUREFLAGS(vi, x) BF64_SET((vi), 2, 30, x) + +/* + * Feature flags for zfs send streams (flags in drr_versioninfo) + */ + +#define DMU_BACKUP_FEATURE_DEDUP (0x1) +#define DMU_BACKUP_FEATURE_DEDUPPROPS (0x2) +#define DMU_BACKUP_FEATURE_SA_SPILL (0x4) + +/* + * Mask of all supported backup features + */ +#define DMU_BACKUP_FEATURE_MASK (DMU_BACKUP_FEATURE_DEDUP | \ + DMU_BACKUP_FEATURE_DEDUPPROPS | DMU_BACKUP_FEATURE_SA_SPILL) + +/* Are all features in the given flag word currently supported? */ +#define DMU_STREAM_SUPPORTED(x) (!((x) & ~DMU_BACKUP_FEATURE_MASK)) + +/* + * The drr_versioninfo field of the dmu_replay_record has the + * following layout: + * + * 64 56 48 40 32 24 16 8 0 + * +-------+-------+-------+-------+-------+-------+-------+-------+ + * | reserved | feature-flags |C|S| + * +-------+-------+-------+-------+-------+-------+-------+-------+ + * + * The low order two bits indicate the header type: SUBSTREAM (0x1) + * or COMPOUNDSTREAM (0x2). Using two bits for this is historical: + * this field used to be a version number, where the two version types + * were 1 and 2. Using two bits for this allows earlier versions of + * the code to be able to recognize send streams that don't use any + * of the features indicated by feature flags. + */ + #define DMU_BACKUP_MAGIC 0x2F5bacbacULL #define DRR_FLAG_CLONE (1<<0) #define DRR_FLAG_CI_DATA (1<<1) /* + * flags in the drr_checksumflags field in the DRR_WRITE and + * DRR_WRITE_BYREF blocks + */ +#define DRR_CHECKSUM_DEDUP (1<<0) + +#define DRR_IS_DEDUP_CAPABLE(flags) ((flags) & DRR_CHECKSUM_DEDUP) + +/* * zfs ioctl command structure */ typedef struct dmu_replay_record { enum { DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS, - DRR_WRITE, DRR_FREE, DRR_END, + DRR_WRITE, DRR_FREE, DRR_END, DRR_WRITE_BYREF, + DRR_SPILL, DRR_NUMTYPES } drr_type; uint32_t drr_payloadlen; union { struct drr_begin { uint64_t drr_magic; - uint64_t drr_version; + uint64_t drr_versioninfo; /* was drr_version */ uint64_t drr_creation_time; dmu_objset_type_t drr_type; uint32_t drr_flags; @@ -74,6 +135,7 @@ typedef struct dmu_replay_record { } drr_begin; struct drr_end { zio_cksum_t drr_checksum; + uint64_t drr_toguid; } drr_end; struct drr_object { uint64_t drr_object; @@ -81,14 +143,16 @@ typedef struct dmu_replay_record { dmu_object_type_t drr_bonustype; uint32_t drr_blksz; uint32_t drr_bonuslen; - uint8_t drr_checksum; + uint8_t drr_checksumtype; uint8_t drr_compress; uint8_t drr_pad[6]; + uint64_t drr_toguid; /* bonus content follows */ } drr_object; struct drr_freeobjects { uint64_t drr_firstobj; uint64_t drr_numobjs; + uint64_t drr_toguid; } drr_freeobjects; struct drr_write { uint64_t drr_object; @@ -96,13 +160,42 @@ typedef struct dmu_replay_record { uint32_t drr_pad; uint64_t drr_offset; uint64_t drr_length; + uint64_t drr_toguid; + uint8_t drr_checksumtype; + uint8_t drr_checksumflags; + uint8_t drr_pad2[6]; + ddt_key_t drr_key; /* deduplication key */ /* content follows */ } drr_write; struct drr_free { uint64_t drr_object; uint64_t drr_offset; uint64_t drr_length; + uint64_t drr_toguid; } drr_free; + struct drr_write_byref { + /* where to put the data */ + uint64_t drr_object; + uint64_t drr_offset; + uint64_t drr_length; + uint64_t drr_toguid; + /* where to find the prior copy of the data */ + uint64_t drr_refguid; + uint64_t drr_refobject; + uint64_t drr_refoffset; + /* properties of the data */ + uint8_t drr_checksumtype; + uint8_t drr_checksumflags; + uint8_t drr_pad2[6]; + ddt_key_t drr_key; /* deduplication key */ + } drr_write_byref; + struct drr_spill { + uint64_t drr_object; + uint64_t drr_length; + uint64_t drr_toguid; + uint64_t drr_pad[4]; /* needed for crypto */ + /* spill data follows */ + } drr_spill; } drr_u; } dmu_replay_record_t; @@ -117,6 +210,10 @@ typedef struct zinject_record { uint64_t zi_type; uint32_t zi_freq; uint32_t zi_failfast; + char zi_func[MAXNAMELEN]; + uint32_t zi_iotype; + int32_t zi_duration; + uint64_t zi_timer; } zinject_record_t; #define ZINJECT_NULL 0x1 @@ -146,6 +243,7 @@ typedef struct zfs_cmd { char zc_name[MAXPATHLEN]; char zc_value[MAXPATHLEN * 2]; char zc_string[MAXNAMELEN]; + char zc_top_ds[MAXPATHLEN]; uint64_t zc_guid; uint64_t zc_nvlist_conf; /* really (char *) */ uint64_t zc_nvlist_conf_size; @@ -166,6 +264,7 @@ typedef struct zfs_cmd { struct drr_begin zc_begin_record; zinject_record_t zc_inject_record; boolean_t zc_defer_destroy; + boolean_t zc_temphold; } zfs_cmd_t; typedef struct zfs_useracct { @@ -178,6 +277,8 @@ typedef struct zfs_useracct { #define ZVOL_MAX_MINOR (1 << 16) #define ZFS_MIN_MINOR (ZVOL_MAX_MINOR + 1) +#define ZPOOL_EXPORT_AFTER_SPLIT 0x1 + #ifdef _KERNEL typedef struct zfs_creat { @@ -192,7 +293,7 @@ extern int zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr); extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); extern int zfs_busy(void); -extern int zfs_unmount_snap(char *, void *); +extern int zfs_unmount_snap(const char *, void *); #endif /* _KERNEL */ diff --git a/module/zfs/include/sys/zfs_sa.h b/module/zfs/include/sys/zfs_sa.h new file mode 100644 index 000000000..cd312b27a --- /dev/null +++ b/module/zfs/include/sys/zfs_sa.h @@ -0,0 +1,143 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_ZFS_SA_H +#define _SYS_ZFS_SA_H + +#ifdef _KERNEL +#include <sys/types32.h> +#include <sys/list.h> +#include <sys/dmu.h> +#include <sys/zfs_acl.h> +#include <sys/zfs_znode.h> +#include <sys/sa.h> +#include <sys/zil.h> + + +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * This is the list of known attributes + * to the ZPL. The values of the actual + * attributes are not defined by the order + * the enums. It is controlled by the attribute + * registration mechanism. Two different file system + * could have different numeric values for the same + * attributes. this list is only used for dereferencing + * into the table that will hold the actual numeric value. + */ +typedef enum zpl_attr { + ZPL_ATIME, + ZPL_MTIME, + ZPL_CTIME, + ZPL_CRTIME, + ZPL_GEN, + ZPL_MODE, + ZPL_SIZE, + ZPL_PARENT, + ZPL_LINKS, + ZPL_XATTR, + ZPL_RDEV, + ZPL_FLAGS, + ZPL_UID, + ZPL_GID, + ZPL_PAD, + ZPL_ZNODE_ACL, + ZPL_DACL_COUNT, + ZPL_SYMLINK, + ZPL_SCANSTAMP, + ZPL_DACL_ACES, + ZPL_END +} zpl_attr_t; + +#define ZFS_OLD_ZNODE_PHYS_SIZE 0x108 +#define ZFS_SA_BASE_ATTR_SIZE (ZFS_OLD_ZNODE_PHYS_SIZE - \ + sizeof (zfs_acl_phys_t)) + +#define SA_MODE_OFFSET 0 +#define SA_SIZE_OFFSET 8 +#define SA_GEN_OFFSET 16 +#define SA_UID_OFFSET 24 +#define SA_GID_OFFSET 32 +#define SA_PARENT_OFFSET 40 + +extern sa_attr_reg_t zfs_attr_table[ZPL_END + 1]; +extern sa_attr_reg_t zfs_legacy_attr_table[ZPL_END + 1]; + +/* + * This is a deprecated data structure that only exists for + * dealing with file systems create prior to ZPL version 5. + */ +typedef struct znode_phys { + uint64_t zp_atime[2]; /* 0 - last file access time */ + uint64_t zp_mtime[2]; /* 16 - last file modification time */ + uint64_t zp_ctime[2]; /* 32 - last file change time */ + uint64_t zp_crtime[2]; /* 48 - creation time */ + uint64_t zp_gen; /* 64 - generation (txg of creation) */ + uint64_t zp_mode; /* 72 - file mode bits */ + uint64_t zp_size; /* 80 - size of file */ + uint64_t zp_parent; /* 88 - directory parent (`..') */ + uint64_t zp_links; /* 96 - number of links to file */ + uint64_t zp_xattr; /* 104 - DMU object for xattrs */ + uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */ + uint64_t zp_flags; /* 120 - persistent flags */ + uint64_t zp_uid; /* 128 - file owner */ + uint64_t zp_gid; /* 136 - owning group */ + uint64_t zp_zap; /* 144 - extra attributes */ + uint64_t zp_pad[3]; /* 152 - future */ + zfs_acl_phys_t zp_acl; /* 176 - 263 ACL */ + /* + * Data may pad out any remaining bytes in the znode buffer, eg: + * + * |<---------------------- dnode_phys (512) ------------------------>| + * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->| + * |<---- znode (264) ---->|<---- data (56) ---->| + * + * At present, we use this space for the following: + * - symbolic links + * - 32-byte anti-virus scanstamp (regular files only) + */ +} znode_phys_t; + +#ifdef _KERNEL +int zfs_sa_readlink(struct znode *, uio_t *); +void zfs_sa_symlink(struct znode *, char *link, int len, dmu_tx_t *); +void zfs_sa_upgrade(struct sa_handle *, dmu_tx_t *); +void zfs_sa_get_scanstamp(struct znode *, xvattr_t *); +void zfs_sa_set_scanstamp(struct znode *, xvattr_t *, dmu_tx_t *); +void zfs_sa_uprade_pre(struct sa_handle *, void *, dmu_tx_t *); +void zfs_sa_upgrade_post(struct sa_handle *, void *, dmu_tx_t *); +void zfs_sa_upgrade_txholds(dmu_tx_t *, struct znode *); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_ZFS_SA_H */ diff --git a/module/zfs/include/sys/zfs_vfsops.h b/module/zfs/include/sys/zfs_vfsops.h index 28555232b..86dcdacc0 100644 --- a/module/zfs/include/sys/zfs_vfsops.h +++ b/module/zfs/include/sys/zfs_vfsops.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_FS_ZFS_VFSOPS_H @@ -31,6 +30,7 @@ #include <sys/list.h> #include <sys/vfs.h> #include <sys/zil.h> +#include <sys/sa.h> #include <sys/rrwlock.h> #include <sys/zfs_ioctl.h> @@ -39,6 +39,7 @@ extern "C" { #endif typedef struct zfsvfs zfsvfs_t; +struct znode; struct zfsvfs { vfs_t *z_vfs; /* generic fs struct */ @@ -56,7 +57,6 @@ struct zfsvfs { boolean_t z_fuid_dirty; /* need to sync fuid table ? */ struct zfs_fuid_info *z_fuid_replay; /* fuid info for replay */ zilog_t *z_log; /* intent log pointer */ - uint_t z_acl_mode; /* acl chmod/mode behavior */ uint_t z_acl_inherit; /* acl inheritance behavior */ zfs_case_t z_case; /* case-sense */ boolean_t z_utf8; /* utf8-only */ @@ -73,11 +73,13 @@ struct zfsvfs { boolean_t z_vscan; /* virus scan on/off */ boolean_t z_use_fuids; /* version allows fuids */ boolean_t z_replay; /* set during ZIL replay */ + boolean_t z_use_sa; /* version allow system attributes */ uint64_t z_version; /* ZPL version */ uint64_t z_shares_dir; /* hidden shares dir */ kmutex_t z_lock; uint64_t z_userquota_obj; uint64_t z_groupquota_obj; + sa_attr_type_t *z_attr_table; /* SA attr mapping->id */ #define ZFS_OBJ_MTX_SZ 64 kmutex_t z_hold_mtx[ZFS_OBJ_MTX_SZ]; /* znode hold locks */ }; @@ -132,19 +134,22 @@ typedef struct zfid_long { extern uint_t zfs_fsyncer_key; -extern int zfs_suspend_fs(zfsvfs_t *zfsvfs, char *osname, int *mode); -extern int zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname, int mode); +extern int zfs_suspend_fs(zfsvfs_t *zfsvfs); +extern int zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname); extern int zfs_userspace_one(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type, const char *domain, uint64_t rid, uint64_t *valuep); extern int zfs_userspace_many(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type, uint64_t *cookiep, void *vbuf, uint64_t *bufsizep); extern int zfs_set_userquota(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type, const char *domain, uint64_t rid, uint64_t quota); -extern boolean_t zfs_usergroup_overquota(zfsvfs_t *zfsvfs, - boolean_t isgroup, uint64_t fuid); +extern boolean_t zfs_owner_overquota(zfsvfs_t *zfsvfs, struct znode *, + boolean_t isgroup); +extern boolean_t zfs_fuid_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, + uint64_t fuid); extern int zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers); -extern int zfsvfs_create(const char *name, int mode, zfsvfs_t **zvp); +extern int zfsvfs_create(const char *name, zfsvfs_t **zfvp); extern void zfsvfs_free(zfsvfs_t *zfsvfs); +extern int zfs_check_global_label(const char *dsname, const char *hexsl); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/zfs_znode.h b/module/zfs/include/sys/zfs_znode.h index 5db5b8d51..4781ee686 100644 --- a/module/zfs/include/sys/zfs_znode.h +++ b/module/zfs/include/sys/zfs_znode.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -32,8 +32,10 @@ #include <sys/attr.h> #include <sys/list.h> #include <sys/dmu.h> +#include <sys/sa.h> #include <sys/zfs_vfsops.h> #include <sys/rrwlock.h> +#include <sys/zfs_sa.h> #endif #include <sys/zfs_acl.h> #include <sys/zil.h> @@ -57,13 +59,16 @@ extern "C" { #define ZFS_OPAQUE 0x0000010000000000 #define ZFS_AV_QUARANTINED 0x0000020000000000 #define ZFS_AV_MODIFIED 0x0000040000000000 +#define ZFS_REPARSE 0x0000080000000000 -#define ZFS_ATTR_SET(zp, attr, value) \ +#define ZFS_ATTR_SET(zp, attr, value, pflags, tx) \ { \ if (value) \ - zp->z_phys->zp_flags |= attr; \ + pflags |= attr; \ else \ - zp->z_phys->zp_flags &= ~attr; \ + pflags &= ~attr; \ + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zp->z_zfsvfs), \ + &pflags, sizeof (pflags), tx)); \ } /* @@ -79,6 +84,27 @@ extern "C" { #define ZFS_BONUS_SCANSTAMP 0x80 /* Scanstamp in bonus area */ #define ZFS_NO_EXECS_DENIED 0x100 /* exec was given to everyone */ +#define SA_ZPL_ATIME(z) z->z_attr_table[ZPL_ATIME] +#define SA_ZPL_MTIME(z) z->z_attr_table[ZPL_MTIME] +#define SA_ZPL_CTIME(z) z->z_attr_table[ZPL_CTIME] +#define SA_ZPL_CRTIME(z) z->z_attr_table[ZPL_CRTIME] +#define SA_ZPL_GEN(z) z->z_attr_table[ZPL_GEN] +#define SA_ZPL_DACL_ACES(z) z->z_attr_table[ZPL_DACL_ACES] +#define SA_ZPL_XATTR(z) z->z_attr_table[ZPL_XATTR] +#define SA_ZPL_SYMLINK(z) z->z_attr_table[ZPL_SYMLINK] +#define SA_ZPL_RDEV(z) z->z_attr_table[ZPL_RDEV] +#define SA_ZPL_SCANSTAMP(z) z->z_attr_table[ZPL_SCANSTAMP] +#define SA_ZPL_UID(z) z->z_attr_table[ZPL_UID] +#define SA_ZPL_GID(z) z->z_attr_table[ZPL_GID] +#define SA_ZPL_PARENT(z) z->z_attr_table[ZPL_PARENT] +#define SA_ZPL_LINKS(z) z->z_attr_table[ZPL_LINKS] +#define SA_ZPL_MODE(z) z->z_attr_table[ZPL_MODE] +#define SA_ZPL_DACL_COUNT(z) z->z_attr_table[ZPL_DACL_COUNT] +#define SA_ZPL_FLAGS(z) z->z_attr_table[ZPL_FLAGS] +#define SA_ZPL_SIZE(z) z->z_attr_table[ZPL_SIZE] +#define SA_ZPL_ZNODE_ACL(z) z->z_attr_table[ZPL_ZNODE_ACL] +#define SA_ZPL_PAD(z) z->z_attr_table[ZPL_PAD] + /* * Is ID ephemeral? */ @@ -87,8 +113,10 @@ extern "C" { /* * Should we use FUIDs? */ -#define USE_FUIDS(version, os) (version >= ZPL_VERSION_FUID &&\ +#define USE_FUIDS(version, os) (version >= ZPL_VERSION_FUID && \ spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID) +#define USE_SA(version, os) (version >= ZPL_VERSION_SA && \ + spa_version(dmu_objset_spa(os)) >= SPA_VERSION_SA) #define MASTER_NODE_OBJ 1 @@ -103,6 +131,7 @@ extern "C" { #define ZPL_VERSION_STR "VERSION" #define ZFS_FUID_TABLES "FUID" #define ZFS_SHARES_DIR "SHARES" +#define ZFS_SA_ATTRS "SA_ATTRS" #define ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE) @@ -131,42 +160,6 @@ extern "C" { #define ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48) /* - * This is the persistent portion of the znode. It is stored - * in the "bonus buffer" of the file. Short symbolic links - * are also stored in the bonus buffer. - */ -typedef struct znode_phys { - uint64_t zp_atime[2]; /* 0 - last file access time */ - uint64_t zp_mtime[2]; /* 16 - last file modification time */ - uint64_t zp_ctime[2]; /* 32 - last file change time */ - uint64_t zp_crtime[2]; /* 48 - creation time */ - uint64_t zp_gen; /* 64 - generation (txg of creation) */ - uint64_t zp_mode; /* 72 - file mode bits */ - uint64_t zp_size; /* 80 - size of file */ - uint64_t zp_parent; /* 88 - directory parent (`..') */ - uint64_t zp_links; /* 96 - number of links to file */ - uint64_t zp_xattr; /* 104 - DMU object for xattrs */ - uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */ - uint64_t zp_flags; /* 120 - persistent flags */ - uint64_t zp_uid; /* 128 - file owner */ - uint64_t zp_gid; /* 136 - owning group */ - uint64_t zp_zap; /* 144 - extra attributes */ - uint64_t zp_pad[3]; /* 152 - future */ - zfs_acl_phys_t zp_acl; /* 176 - 263 ACL */ - /* - * Data may pad out any remaining bytes in the znode buffer, eg: - * - * |<---------------------- dnode_phys (512) ------------------------>| - * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->| - * |<---- znode (264) ---->|<---- data (56) ---->| - * - * At present, we use this space for the following: - * - symbolic links - * - 32-byte anti-virus scanstamp (regular files only) - */ -} znode_phys_t; - -/* * Directory entry locks control access to directory entries. * They are used to protect creates, deletes, and renames. * Each directory znode has a mutex and a list of locked names. @@ -175,6 +168,7 @@ typedef struct znode_phys { typedef struct zfs_dirlock { char *dl_name; /* directory entry being locked */ uint32_t dl_sharecnt; /* 0 if exclusive, > 0 if shared */ + uint8_t dl_namelock; /* 1 if z_name_lock is NOT held */ uint16_t dl_namesize; /* set if dl_name was allocated */ kcondvar_t dl_cv; /* wait for entry to be unlocked */ struct znode *dl_dzp; /* directory znode */ @@ -198,16 +192,20 @@ typedef struct znode { uint_t z_seq; /* modification sequence number */ uint64_t z_mapcnt; /* number of pages mapped to file */ uint64_t z_last_itx; /* last ZIL itx on this znode */ - uint64_t z_gen; /* generation (same as zp_gen) */ + uint64_t z_gen; /* generation (cached) */ + uint64_t z_size; /* file size (cached) */ + uint64_t z_atime[2]; /* atime (cached) */ + uint64_t z_links; /* file links (cached) */ + uint64_t z_pflags; /* pflags (cached) */ + uid_t z_uid; /* uid mapped (cached) */ + uid_t z_gid; /* gid mapped (cached) */ + mode_t z_mode; /* mode (cached) */ uint32_t z_sync_cnt; /* synchronous open count */ kmutex_t z_acl_lock; /* acl data lock */ zfs_acl_t *z_acl_cached; /* cached acl */ list_node_t z_link_node; /* all znodes in fs link */ - /* - * These are dmu managed fields. - */ - znode_phys_t *z_phys; /* pointer to persistent znode */ - dmu_buf_t *z_dbuf; /* buffer containing the z_phys */ + sa_handle_t *z_sa_hdl; /* handle to sa data */ + boolean_t z_is_sa; /* are we native sa? */ } znode_t; @@ -250,7 +248,7 @@ typedef struct znode { #define ZFS_EXIT(zfsvfs) rrw_exit(&(zfsvfs)->z_teardown_lock, FTAG) #define ZFS_VERIFY_ZP(zp) \ - if ((zp)->z_dbuf == NULL) { \ + if ((zp)->z_sa_hdl == NULL) { \ ZFS_EXIT((zp)->z_zfsvfs); \ return (EIO); \ } \ @@ -292,14 +290,14 @@ typedef struct znode { #define ZFS_ACCESSTIME_STAMP(zfsvfs, zp) \ if ((zfsvfs)->z_atime && !((zfsvfs)->z_vfs->vfs_flag & VFS_RDONLY)) \ - zfs_time_stamper(zp, ACCESSED, NULL) + zfs_tstamp_update_setup(zp, ACCESSED, NULL, NULL, B_FALSE); extern int zfs_init_fs(zfsvfs_t *, znode_t **); extern void zfs_set_dataprop(objset_t *); extern void zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *, dmu_tx_t *tx); -extern void zfs_time_stamper(znode_t *, uint_t, dmu_tx_t *); -extern void zfs_time_stamper_locked(znode_t *, uint_t, dmu_tx_t *); +extern void zfs_tstamp_update_setup(znode_t *, uint_t, uint64_t [2], + uint64_t [2], boolean_t); extern void zfs_grow_blocksize(znode_t *, uint64_t, dmu_tx_t *); extern int zfs_freesp(znode_t *, uint64_t, uint64_t, int, boolean_t); extern void zfs_znode_init(void); @@ -338,7 +336,7 @@ extern void zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp); extern void zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, vsecattr_t *vsecp, zfs_fuid_info_t *fuidp); -extern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap); +extern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx); extern void zfs_upgrade(zfsvfs_t *zfsvfs, dmu_tx_t *tx); extern int zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx); diff --git a/module/zfs/include/sys/zil.h b/module/zfs/include/sys/zil.h index 2aff8cd68..2f01cf922 100644 --- a/module/zfs/include/sys/zil.h +++ b/module/zfs/include/sys/zil.h @@ -19,10 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #ifndef _SYS_ZIL_H #define _SYS_ZIL_H @@ -55,34 +56,40 @@ typedef struct zil_header { uint64_t zh_claim_txg; /* txg in which log blocks were claimed */ uint64_t zh_replay_seq; /* highest replayed sequence number */ blkptr_t zh_log; /* log chain */ - uint64_t zh_claim_seq; /* highest claimed sequence number */ + uint64_t zh_claim_blk_seq; /* highest claimed block sequence number */ uint64_t zh_flags; /* header flags */ - uint64_t zh_pad[4]; + uint64_t zh_claim_lr_seq; /* highest claimed lr sequence number */ + uint64_t zh_pad[3]; } zil_header_t; /* * zh_flags bit settings */ -#define ZIL_REPLAY_NEEDED 0x1 /* replay needed - internal only */ +#define ZIL_REPLAY_NEEDED 0x1 /* replay needed - internal only */ +#define ZIL_CLAIM_LR_SEQ_VALID 0x2 /* zh_claim_lr_seq field is valid */ /* - * Log block trailer - structure at the end of the header and each log block + * Log block chaining. + * + * Log blocks are chained together. Originally they were chained at the + * end of the block. For performance reasons the chain was moved to the + * beginning of the block which allows writes for only the data being used. + * The older position is supported for backwards compatability. * - * The zit_bt contains a zbt_cksum which for the intent log is + * The zio_eck_t contains a zec_cksum which for the intent log is * the sequence number of this log block. A seq of 0 is invalid. - * The zbt_cksum is checked by the SPA against the sequence + * The zec_cksum is checked by the SPA against the sequence * number passed in the blk_cksum field of the blkptr_t */ -typedef struct zil_trailer { - uint64_t zit_pad; - blkptr_t zit_next_blk; /* next block in chain */ - uint64_t zit_nused; /* bytes in log block used */ - zio_block_tail_t zit_bt; /* block trailer */ -} zil_trailer_t; +typedef struct zil_chain { + uint64_t zc_pad; + blkptr_t zc_next_blk; /* next block in chain */ + uint64_t zc_nused; /* bytes in log block used */ + zio_eck_t zc_eck; /* block trailer */ +} zil_chain_t; #define ZIL_MIN_BLKSZ 4096ULL #define ZIL_MAX_BLKSZ SPA_MAXBLOCKSIZE -#define ZIL_BLK_DATA_SZ(lwb) ((lwb)->lwb_sz - sizeof (zil_trailer_t)) /* * The words of a log block checksum. @@ -139,7 +146,8 @@ typedef enum zil_create { #define TX_MKDIR_ACL 17 /* mkdir with ACL */ #define TX_MKDIR_ATTR 18 /* mkdir with attr */ #define TX_MKDIR_ACL_ATTR 19 /* mkdir with ACL + attrs */ -#define TX_MAX_TYPE 20 /* Max transaction type */ +#define TX_WRITE2 20 /* dmu_sync EALREADY write */ +#define TX_MAX_TYPE 21 /* Max transaction type */ /* * The transactions for mkdir, symlink, remove, rmdir, link, and rename @@ -149,6 +157,20 @@ typedef enum zil_create { #define TX_CI ((uint64_t)0x1 << 63) /* case-insensitive behavior requested */ /* + * Transactions for write, truncate, setattr, acl_v0, and acl can be logged + * out of order. For convenience in the code, all such records must have + * lr_foid at the same offset. + */ +#define TX_OOO(txtype) \ + ((txtype) == TX_WRITE || \ + (txtype) == TX_TRUNCATE || \ + (txtype) == TX_SETATTR || \ + (txtype) == TX_ACL_V0 || \ + (txtype) == TX_ACL || \ + (txtype) == TX_WRITE2) + + +/* * Format of log records. * The fields are carefully defined to allow them to be aligned * and sized the same on sparc & intel architectures. @@ -168,6 +190,14 @@ typedef struct { /* common log record header */ } lr_t; /* + * Common start of all out-of-order record types (TX_OOO() above). + */ +typedef struct { + lr_t lr_common; /* common portion of log record */ + uint64_t lr_foid; /* object id */ +} lr_ooo_t; + +/* * Handle option extended vattr attributes. * * Whenever new attributes are added the version number @@ -257,7 +287,7 @@ typedef struct { uint64_t lr_foid; /* file object to write */ uint64_t lr_offset; /* offset to write to */ uint64_t lr_length; /* user data length to write */ - uint64_t lr_blkoff; /* offset represented by lr_blkptr */ + uint64_t lr_blkoff; /* no longer used */ blkptr_t lr_blkptr; /* spa block pointer for replay */ /* write data will follow for small writes */ } lr_write_t; @@ -332,6 +362,7 @@ typedef enum { /* and put blkptr in log, rather than actual data) */ WR_COPIED, /* immediate - data is copied into lr_write_t */ WR_NEED_COPY, /* immediate - data needs to be copied if pushed */ + WR_NUM_STATES /* number of states */ } itx_wr_state_t; typedef struct itx { @@ -344,26 +375,14 @@ typedef struct itx { /* followed by type-specific part of lr_xx_t and its immediate data */ } itx_t; - -/* - * zgd_t is passed through dmu_sync() to the callback routine zfs_get_done() - * to handle the cleanup of the dmu_sync() buffer write - */ -typedef struct { - zilog_t *zgd_zilog; /* zilog */ - blkptr_t *zgd_bp; /* block pointer */ - struct rl *zgd_rl; /* range lock */ -} zgd_t; - - -typedef void zil_parse_blk_func_t(zilog_t *zilog, blkptr_t *bp, void *arg, +typedef int zil_parse_blk_func_t(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t txg); -typedef void zil_parse_lr_func_t(zilog_t *zilog, lr_t *lr, void *arg, +typedef int zil_parse_lr_func_t(zilog_t *zilog, lr_t *lr, void *arg, uint64_t txg); typedef int zil_replay_func_t(); typedef int zil_get_data_t(void *arg, lr_write_t *lr, char *dbuf, zio_t *zio); -extern uint64_t zil_parse(zilog_t *zilog, zil_parse_blk_func_t *parse_blk_func, +extern int zil_parse(zilog_t *zilog, zil_parse_blk_func_t *parse_blk_func, zil_parse_lr_func_t *parse_lr_func, void *arg, uint64_t txg); extern void zil_init(void); @@ -377,27 +396,33 @@ extern void zil_close(zilog_t *zilog); extern void zil_replay(objset_t *os, void *arg, zil_replay_func_t *replay_func[TX_MAX_TYPE]); +extern boolean_t zil_replaying(zilog_t *zilog, dmu_tx_t *tx); extern void zil_destroy(zilog_t *zilog, boolean_t keep_first); extern void zil_rollback_destroy(zilog_t *zilog, dmu_tx_t *tx); extern itx_t *zil_itx_create(uint64_t txtype, size_t lrsize); +extern void zil_itx_destroy(itx_t *itx); extern uint64_t zil_itx_assign(zilog_t *zilog, itx_t *itx, dmu_tx_t *tx); extern void zil_commit(zilog_t *zilog, uint64_t seq, uint64_t oid); -extern int zil_vdev_offline(char *osname, void *txarg); -extern int zil_claim(char *osname, void *txarg); -extern int zil_check_log_chain(char *osname, void *txarg); +extern int zil_vdev_offline(const char *osname, void *txarg); +extern int zil_claim(const char *osname, void *txarg); +extern int zil_check_log_chain(const char *osname, void *txarg); extern void zil_sync(zilog_t *zilog, dmu_tx_t *tx); extern void zil_clean(zilog_t *zilog); -extern int zil_is_committed(zilog_t *zilog); extern int zil_suspend(zilog_t *zilog); extern void zil_resume(zilog_t *zilog); -extern void zil_add_block(zilog_t *zilog, blkptr_t *bp); +extern void zil_add_block(zilog_t *zilog, const blkptr_t *bp); +extern int zil_bp_tree_add(zilog_t *zilog, const blkptr_t *bp); + +extern void zil_set_sync(zilog_t *zilog, uint64_t syncval); + +extern void zil_set_logbias(zilog_t *zilog, uint64_t slogval); -extern int zil_disable; +extern int zil_replay_disable; #ifdef __cplusplus } diff --git a/module/zfs/include/sys/zil_impl.h b/module/zfs/include/sys/zil_impl.h index 685305fb5..6560a7942 100644 --- a/module/zfs/include/sys/zil_impl.h +++ b/module/zfs/include/sys/zil_impl.h @@ -19,10 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #ifndef _SYS_ZIL_IMPL_H #define _SYS_ZIL_IMPL_H @@ -43,8 +44,8 @@ typedef struct lwb { int lwb_sz; /* size of block and buffer */ char *lwb_buf; /* log write buffer */ zio_t *lwb_zio; /* zio for this buffer */ + dmu_tx_t *lwb_tx; /* tx for log block allocation */ uint64_t lwb_max_txg; /* highest txg in this lwb */ - txg_handle_t lwb_txgh; /* txg handle for txg_exit() */ list_node_t lwb_node; /* zilog->zl_lwb_list linkage */ } lwb_t; @@ -57,6 +58,8 @@ typedef struct zil_vdev_node { avl_node_t zv_node; /* AVL tree linkage */ } zil_vdev_node_t; +#define ZIL_PREV_BLKS 16 + /* * Stable storage intent log management structure. One per dataset. */ @@ -68,9 +71,10 @@ struct zilog { objset_t *zl_os; /* object set we're logging */ zil_get_data_t *zl_get_data; /* callback to get object content */ zio_t *zl_root_zio; /* log writer root zio */ - uint64_t zl_itx_seq; /* next itx sequence number */ + uint64_t zl_itx_seq; /* next in-core itx sequence number */ + uint64_t zl_lr_seq; /* on-disk log record sequence number */ uint64_t zl_commit_seq; /* committed upto this number */ - uint64_t zl_lr_seq; /* log record sequence number */ + uint64_t zl_commit_lr_seq; /* last committed on-disk lr seq */ uint64_t zl_destroy_txg; /* txg of last zil_destroy() */ uint64_t zl_replayed_seq[TXG_SIZE]; /* last replayed rec seq */ uint64_t zl_replaying_seq; /* current replay seq number */ @@ -82,7 +86,13 @@ struct zilog { uint8_t zl_replay; /* replaying records while set */ uint8_t zl_stop_sync; /* for debugging */ uint8_t zl_writer; /* boolean: write setup in progress */ - uint8_t zl_log_error; /* boolean: log write error */ + uint8_t zl_logbias; /* latency or throughput */ + uint8_t zl_sync; /* synchronous or asynchronous */ + int zl_parse_error; /* last zil_parse() error */ + uint64_t zl_parse_blk_seq; /* highest blk seq on last parse */ + uint64_t zl_parse_lr_seq; /* highest lr seq on last parse */ + uint64_t zl_parse_blk_count; /* number of blocks parsed */ + uint64_t zl_parse_lr_count; /* number of log records parsed */ list_t zl_itx_list; /* in-memory itx list */ uint64_t zl_itx_list_sz; /* total size of records on list */ uint64_t zl_cur_used; /* current commit log size used */ @@ -91,17 +101,20 @@ struct zilog { kmutex_t zl_vdev_lock; /* protects zl_vdev_tree */ avl_tree_t zl_vdev_tree; /* vdevs to flush in zil_commit() */ taskq_t *zl_clean_taskq; /* runs lwb and itx clean tasks */ - avl_tree_t zl_dva_tree; /* track DVAs during log parse */ + avl_tree_t zl_bp_tree; /* track bps during log parse */ clock_t zl_replay_time; /* lbolt of when replay started */ uint64_t zl_replay_blks; /* number of log blocks replayed */ + zil_header_t zl_old_header; /* debugging aid */ + uint_t zl_prev_blks[ZIL_PREV_BLKS]; /* size - sector rounded */ + uint_t zl_prev_rotor; /* rotor for zl_prev[] */ }; -typedef struct zil_dva_node { +typedef struct zil_bp_node { dva_t zn_dva; avl_node_t zn_node; -} zil_dva_node_t; +} zil_bp_node_t; -#define ZIL_MAX_LOG_DATA (SPA_MAXBLOCKSIZE - sizeof (zil_trailer_t) - \ +#define ZIL_MAX_LOG_DATA (SPA_MAXBLOCKSIZE - sizeof (zil_chain_t) - \ sizeof (lr_write_t)) #ifdef __cplusplus diff --git a/module/zfs/include/sys/zio.h b/module/zfs/include/sys/zio.h index e47d8f468..0400c1702 100644 --- a/module/zfs/include/sys/zio.h +++ b/module/zfs/include/sys/zio.h @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _ZIO_H @@ -38,12 +37,15 @@ extern "C" { #endif -#define ZBT_MAGIC 0x210da7ab10c7a11ULL /* zio data bloc tail */ +/* + * Embedded checksum + */ +#define ZEC_MAGIC 0x210da7ab10c7a11ULL -typedef struct zio_block_tail { - uint64_t zbt_magic; /* for validation, endianness */ - zio_cksum_t zbt_cksum; /* 256-bit checksum */ -} zio_block_tail_t; +typedef struct zio_eck { + uint64_t zec_magic; /* for validation, endianness */ + zio_cksum_t zec_cksum; /* 256-bit checksum */ +} zio_eck_t; /* * Gang block headers are self-checksumming and contain an array @@ -51,16 +53,16 @@ typedef struct zio_block_tail { */ #define SPA_GANGBLOCKSIZE SPA_MINBLOCKSIZE #define SPA_GBH_NBLKPTRS ((SPA_GANGBLOCKSIZE - \ - sizeof (zio_block_tail_t)) / sizeof (blkptr_t)) + sizeof (zio_eck_t)) / sizeof (blkptr_t)) #define SPA_GBH_FILLER ((SPA_GANGBLOCKSIZE - \ - sizeof (zio_block_tail_t) - \ + sizeof (zio_eck_t) - \ (SPA_GBH_NBLKPTRS * sizeof (blkptr_t))) /\ sizeof (uint64_t)) typedef struct zio_gbh { blkptr_t zg_blkptr[SPA_GBH_NBLKPTRS]; uint64_t zg_filler[SPA_GBH_FILLER]; - zio_block_tail_t zg_tail; + zio_eck_t zg_tail; } zio_gbh_phys_t; enum zio_checksum { @@ -73,12 +75,19 @@ enum zio_checksum { ZIO_CHECKSUM_FLETCHER_2, ZIO_CHECKSUM_FLETCHER_4, ZIO_CHECKSUM_SHA256, + ZIO_CHECKSUM_ZILOG2, ZIO_CHECKSUM_FUNCTIONS }; #define ZIO_CHECKSUM_ON_VALUE ZIO_CHECKSUM_FLETCHER_4 #define ZIO_CHECKSUM_DEFAULT ZIO_CHECKSUM_ON +#define ZIO_CHECKSUM_MASK 0xffULL +#define ZIO_CHECKSUM_VERIFY (1 << 8) + +#define ZIO_DEDUPCHECKSUM ZIO_CHECKSUM_SHA256 +#define ZIO_DEDUPDITTO_MIN 100 + enum zio_compress { ZIO_COMPRESS_INHERIT = 0, ZIO_COMPRESS_ON, @@ -94,12 +103,19 @@ enum zio_compress { ZIO_COMPRESS_GZIP_7, ZIO_COMPRESS_GZIP_8, ZIO_COMPRESS_GZIP_9, + ZIO_COMPRESS_ZLE, ZIO_COMPRESS_FUNCTIONS }; #define ZIO_COMPRESS_ON_VALUE ZIO_COMPRESS_LZJB #define ZIO_COMPRESS_DEFAULT ZIO_COMPRESS_OFF +#define BOOTFS_COMPRESS_VALID(compress) \ + ((compress) == ZIO_COMPRESS_LZJB || \ + ((compress) == ZIO_COMPRESS_ON && \ + ZIO_COMPRESS_ON_VALUE == ZIO_COMPRESS_LZJB) || \ + (compress) == ZIO_COMPRESS_OFF) + #define ZIO_FAILURE_MODE_WAIT 0 #define ZIO_FAILURE_MODE_CONTINUE 1 #define ZIO_FAILURE_MODE_PANIC 2 @@ -107,84 +123,89 @@ enum zio_compress { #define ZIO_PRIORITY_NOW (zio_priority_table[0]) #define ZIO_PRIORITY_SYNC_READ (zio_priority_table[1]) #define ZIO_PRIORITY_SYNC_WRITE (zio_priority_table[2]) -#define ZIO_PRIORITY_ASYNC_READ (zio_priority_table[3]) -#define ZIO_PRIORITY_ASYNC_WRITE (zio_priority_table[4]) -#define ZIO_PRIORITY_FREE (zio_priority_table[5]) -#define ZIO_PRIORITY_CACHE_FILL (zio_priority_table[6]) -#define ZIO_PRIORITY_LOG_WRITE (zio_priority_table[7]) -#define ZIO_PRIORITY_RESILVER (zio_priority_table[8]) -#define ZIO_PRIORITY_SCRUB (zio_priority_table[9]) -#define ZIO_PRIORITY_TABLE_SIZE 10 - -#define ZIO_FLAG_MUSTSUCCEED 0x000000 -#define ZIO_FLAG_CANFAIL 0x000001 -#define ZIO_FLAG_SPECULATIVE 0x000002 -#define ZIO_FLAG_CONFIG_WRITER 0x000004 -#define ZIO_FLAG_DONT_RETRY 0x000008 - -#define ZIO_FLAG_DONT_CACHE 0x000010 -#define ZIO_FLAG_DONT_QUEUE 0x000020 -#define ZIO_FLAG_DONT_AGGREGATE 0x000040 -#define ZIO_FLAG_DONT_PROPAGATE 0x000080 - -#define ZIO_FLAG_IO_BYPASS 0x000100 -#define ZIO_FLAG_IO_REPAIR 0x000200 -#define ZIO_FLAG_IO_RETRY 0x000400 -#define ZIO_FLAG_IO_REWRITE 0x000800 - -#define ZIO_FLAG_SELF_HEAL 0x001000 -#define ZIO_FLAG_RESILVER 0x002000 -#define ZIO_FLAG_SCRUB 0x004000 -#define ZIO_FLAG_SCRUB_THREAD 0x008000 - -#define ZIO_FLAG_PROBE 0x010000 -#define ZIO_FLAG_GANG_CHILD 0x020000 -#define ZIO_FLAG_RAW 0x040000 -#define ZIO_FLAG_GODFATHER 0x080000 - -#define ZIO_FLAG_TRYHARD 0x100000 -#define ZIO_FLAG_NODATA 0x200000 -#define ZIO_FLAG_OPTIONAL 0x400000 - -#define ZIO_FLAG_GANG_INHERIT \ - (ZIO_FLAG_CANFAIL | \ - ZIO_FLAG_SPECULATIVE | \ - ZIO_FLAG_CONFIG_WRITER | \ - ZIO_FLAG_DONT_RETRY | \ - ZIO_FLAG_DONT_CACHE | \ - ZIO_FLAG_DONT_AGGREGATE | \ - ZIO_FLAG_SELF_HEAL | \ - ZIO_FLAG_RESILVER | \ - ZIO_FLAG_SCRUB | \ - ZIO_FLAG_SCRUB_THREAD) - -#define ZIO_FLAG_VDEV_INHERIT \ - (ZIO_FLAG_GANG_INHERIT | \ - ZIO_FLAG_IO_REPAIR | \ - ZIO_FLAG_IO_RETRY | \ - ZIO_FLAG_PROBE | \ - ZIO_FLAG_TRYHARD | \ - ZIO_FLAG_NODATA | \ - ZIO_FLAG_OPTIONAL) - -#define ZIO_FLAG_AGG_INHERIT \ - (ZIO_FLAG_DONT_AGGREGATE | \ - ZIO_FLAG_IO_REPAIR | \ - ZIO_FLAG_SELF_HEAL | \ - ZIO_FLAG_RESILVER | \ - ZIO_FLAG_SCRUB | \ - ZIO_FLAG_SCRUB_THREAD) +#define ZIO_PRIORITY_LOG_WRITE (zio_priority_table[3]) +#define ZIO_PRIORITY_CACHE_FILL (zio_priority_table[4]) +#define ZIO_PRIORITY_AGG (zio_priority_table[5]) +#define ZIO_PRIORITY_FREE (zio_priority_table[6]) +#define ZIO_PRIORITY_ASYNC_WRITE (zio_priority_table[7]) +#define ZIO_PRIORITY_ASYNC_READ (zio_priority_table[8]) +#define ZIO_PRIORITY_RESILVER (zio_priority_table[9]) +#define ZIO_PRIORITY_SCRUB (zio_priority_table[10]) +#define ZIO_PRIORITY_DDT_PREFETCH (zio_priority_table[11]) +#define ZIO_PRIORITY_TABLE_SIZE 12 #define ZIO_PIPELINE_CONTINUE 0x100 #define ZIO_PIPELINE_STOP 0x101 +enum zio_flag { + /* + * Flags inherited by gang, ddt, and vdev children, + * and that must be equal for two zios to aggregate + */ + ZIO_FLAG_DONT_AGGREGATE = 1 << 0, + ZIO_FLAG_IO_REPAIR = 1 << 1, + ZIO_FLAG_SELF_HEAL = 1 << 2, + ZIO_FLAG_RESILVER = 1 << 3, + ZIO_FLAG_SCRUB = 1 << 4, + ZIO_FLAG_SCRUB_THREAD = 1 << 5, + +#define ZIO_FLAG_AGG_INHERIT (ZIO_FLAG_CANFAIL - 1) + + /* + * Flags inherited by ddt, gang, and vdev children. + */ + ZIO_FLAG_CANFAIL = 1 << 6, /* must be first for INHERIT */ + ZIO_FLAG_SPECULATIVE = 1 << 7, + ZIO_FLAG_CONFIG_WRITER = 1 << 8, + ZIO_FLAG_DONT_RETRY = 1 << 9, + ZIO_FLAG_DONT_CACHE = 1 << 10, + ZIO_FLAG_NODATA = 1 << 11, + ZIO_FLAG_INDUCE_DAMAGE = 1 << 12, + +#define ZIO_FLAG_DDT_INHERIT (ZIO_FLAG_IO_RETRY - 1) +#define ZIO_FLAG_GANG_INHERIT (ZIO_FLAG_IO_RETRY - 1) + + /* + * Flags inherited by vdev children. + */ + ZIO_FLAG_IO_RETRY = 1 << 13, /* must be first for INHERIT */ + ZIO_FLAG_PROBE = 1 << 14, + ZIO_FLAG_TRYHARD = 1 << 15, + ZIO_FLAG_OPTIONAL = 1 << 16, + +#define ZIO_FLAG_VDEV_INHERIT (ZIO_FLAG_DONT_QUEUE - 1) + + /* + * Flags not inherited by any children. + */ + ZIO_FLAG_DONT_QUEUE = 1 << 17, /* must be first for INHERIT */ + ZIO_FLAG_DONT_PROPAGATE = 1 << 18, + ZIO_FLAG_IO_BYPASS = 1 << 19, + ZIO_FLAG_IO_REWRITE = 1 << 20, + ZIO_FLAG_RAW = 1 << 21, + ZIO_FLAG_GANG_CHILD = 1 << 22, + ZIO_FLAG_DDT_CHILD = 1 << 23, + ZIO_FLAG_GODFATHER = 1 << 24 +}; + +#define ZIO_FLAG_MUSTSUCCEED 0 + +#define ZIO_DDT_CHILD_FLAGS(zio) \ + (((zio)->io_flags & ZIO_FLAG_DDT_INHERIT) | \ + ZIO_FLAG_DDT_CHILD | ZIO_FLAG_CANFAIL) + #define ZIO_GANG_CHILD_FLAGS(zio) \ (((zio)->io_flags & ZIO_FLAG_GANG_INHERIT) | \ ZIO_FLAG_GANG_CHILD | ZIO_FLAG_CANFAIL) +#define ZIO_VDEV_CHILD_FLAGS(zio) \ + (((zio)->io_flags & ZIO_FLAG_VDEV_INHERIT) | \ + ZIO_FLAG_CANFAIL) + enum zio_child { ZIO_CHILD_VDEV = 0, ZIO_CHILD_GANG, + ZIO_CHILD_DDT, ZIO_CHILD_LOGICAL, ZIO_CHILD_TYPES }; @@ -202,7 +223,6 @@ enum zio_wait_type { #define ECKSUM EBADE #define EFRAGS EBADR -typedef struct zio zio_t; typedef void zio_done_func_t(zio_t *zio); extern uint8_t zio_priority_table[ZIO_PRIORITY_TABLE_SIZE]; @@ -211,18 +231,15 @@ extern char *zio_type_name[ZIO_TYPES]; /* * A bookmark is a four-tuple <objset, object, level, blkid> that uniquely * identifies any block in the pool. By convention, the meta-objset (MOS) - * is objset 0, the meta-dnode is object 0, the root block (osphys_t) is - * level -1 of the meta-dnode, and intent log blocks (which are chained - * off the root block) have blkid == sequence number. In summary: + * is objset 0, and the meta-dnode is object 0. This covers all blocks + * except root blocks and ZIL blocks, which are defined as follows: * - * mos is objset 0 - * meta-dnode is object 0 - * root block is <objset, 0, -1, 0> - * intent log is <objset, 0, -1, ZIL sequence number> + * Root blocks (objset_phys_t) are object 0, level -1: <objset, 0, -1, 0>. + * ZIL blocks are bookmarked <objset, 0, -2, blkid == ZIL sequence number>. + * dmu_sync()ed ZIL data blocks are bookmarked <objset, object, -2, blkid>. * - * Note: this structure is called a bookmark because its first purpose was - * to remember where to resume a pool-wide traverse. The absolute ordering - * for block visitation during traversal is defined in compare_bookmark(). + * Note: this structure is called a bookmark because its original purpose + * was to remember where to resume a pool-wide traverse. * * Note: this structure is passed between userland and the kernel. * Therefore it must not change size or alignment between 32/64 bit @@ -235,14 +252,66 @@ typedef struct zbookmark { uint64_t zb_blkid; } zbookmark_t; +#define SET_BOOKMARK(zb, objset, object, level, blkid) \ +{ \ + (zb)->zb_objset = objset; \ + (zb)->zb_object = object; \ + (zb)->zb_level = level; \ + (zb)->zb_blkid = blkid; \ +} + +#define ZB_DESTROYED_OBJSET (-1ULL) + +#define ZB_ROOT_OBJECT (0ULL) +#define ZB_ROOT_LEVEL (-1LL) +#define ZB_ROOT_BLKID (0ULL) + +#define ZB_ZIL_OBJECT (0ULL) +#define ZB_ZIL_LEVEL (-2LL) + typedef struct zio_prop { enum zio_checksum zp_checksum; enum zio_compress zp_compress; dmu_object_type_t zp_type; uint8_t zp_level; - uint8_t zp_ndvas; + uint8_t zp_copies; + uint8_t zp_dedup; + uint8_t zp_dedup_verify; } zio_prop_t; +typedef struct zio_cksum_report zio_cksum_report_t; + +typedef void zio_cksum_finish_f(zio_cksum_report_t *rep, + const void *good_data); +typedef void zio_cksum_free_f(void *cbdata, size_t size); + +struct zio_bad_cksum; /* defined in zio_checksum.h */ + +struct zio_cksum_report { + struct zio_cksum_report *zcr_next; + nvlist_t *zcr_ereport; + nvlist_t *zcr_detector; + void *zcr_cbdata; + size_t zcr_cbinfo; /* passed to zcr_free() */ + uint64_t zcr_align; + uint64_t zcr_length; + zio_cksum_finish_f *zcr_finish; + zio_cksum_free_f *zcr_free; + + /* internal use only */ + struct zio_bad_cksum *zcr_ckinfo; /* information from failure */ +}; + +typedef void zio_vsd_cksum_report_f(zio_t *zio, zio_cksum_report_t *zcr, + void *arg); + +zio_vsd_cksum_report_f zio_vsd_default_cksum_report; + +typedef struct zio_vsd_ops { + zio_done_func_t *vsd_free; + zio_vsd_cksum_report_f *vsd_cksum_report; +} zio_vsd_ops_t; + typedef struct zio_gang_node { zio_gbh_phys_t *gn_gbh; struct zio_gang_node *gn_child[SPA_GBH_NBLKPTRS]; @@ -293,6 +362,7 @@ struct zio { uint64_t io_txg; spa_t *io_spa; blkptr_t *io_bp; + blkptr_t *io_bp_override; blkptr_t io_bp_copy; list_t io_parent_list; list_t io_child_list; @@ -304,16 +374,20 @@ struct zio { zio_done_func_t *io_ready; zio_done_func_t *io_done; void *io_private; + int64_t io_prev_space_delta; /* DMU private */ blkptr_t io_bp_orig; /* Data represented by this I/O */ void *io_data; + void *io_orig_data; uint64_t io_size; + uint64_t io_orig_size; /* Stuff for the vdev stack */ vdev_t *io_vd; void *io_vsd; - zio_done_func_t *io_vsd_free; + const zio_vsd_ops_t *io_vsd_ops; + uint64_t io_offset; uint64_t io_deadline; avl_node_t io_offset_node; @@ -321,15 +395,17 @@ struct zio { avl_tree_t *io_vdev_tree; /* Internal pipeline state */ - int io_flags; - zio_stage_t io_stage; - uint32_t io_pipeline; - int io_orig_flags; - zio_stage_t io_orig_stage; - uint32_t io_orig_pipeline; + enum zio_flag io_flags; + enum zio_stage io_stage; + enum zio_stage io_pipeline; + enum zio_flag io_orig_flags; + enum zio_stage io_orig_stage; + enum zio_stage io_orig_pipeline; int io_error; int io_child_error[ZIO_CHILD_TYPES]; uint64_t io_children[ZIO_CHILD_TYPES][ZIO_WAIT_TYPES]; + uint64_t io_child_count; + uint64_t io_parent_count; uint64_t *io_stall; zio_t *io_gang_leader; zio_gang_node_t *io_gang_tree; @@ -339,53 +415,58 @@ struct zio { kcondvar_t io_cv; /* FMA state */ + zio_cksum_report_t *io_cksum_report; uint64_t io_ena; }; extern zio_t *zio_null(zio_t *pio, spa_t *spa, vdev_t *vd, - zio_done_func_t *done, void *private, int flags); + zio_done_func_t *done, void *private, enum zio_flag flags); extern zio_t *zio_root(spa_t *spa, - zio_done_func_t *done, void *private, int flags); + zio_done_func_t *done, void *private, enum zio_flag flags); extern zio_t *zio_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, void *data, uint64_t size, zio_done_func_t *done, void *private, - int priority, int flags, const zbookmark_t *zb); + int priority, enum zio_flag flags, const zbookmark_t *zb); extern zio_t *zio_write(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - void *data, uint64_t size, zio_prop_t *zp, + void *data, uint64_t size, const zio_prop_t *zp, zio_done_func_t *ready, zio_done_func_t *done, void *private, - int priority, int flags, const zbookmark_t *zb); + int priority, enum zio_flag flags, const zbookmark_t *zb); extern zio_t *zio_rewrite(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, void *data, uint64_t size, zio_done_func_t *done, void *private, - int priority, int flags, zbookmark_t *zb); + int priority, enum zio_flag flags, zbookmark_t *zb); -extern void zio_skip_write(zio_t *zio); +extern void zio_write_override(zio_t *zio, blkptr_t *bp, int copies); -extern zio_t *zio_free(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - zio_done_func_t *done, void *private, int flags); +extern void zio_free(spa_t *spa, uint64_t txg, const blkptr_t *bp); -extern zio_t *zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - zio_done_func_t *done, void *private, int flags); +extern zio_t *zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, + const blkptr_t *bp, + zio_done_func_t *done, void *private, enum zio_flag flags); extern zio_t *zio_ioctl(zio_t *pio, spa_t *spa, vdev_t *vd, int cmd, - zio_done_func_t *done, void *private, int priority, int flags); + zio_done_func_t *done, void *private, int priority, enum zio_flag flags); extern zio_t *zio_read_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, void *data, int checksum, - zio_done_func_t *done, void *private, int priority, int flags, + zio_done_func_t *done, void *private, int priority, enum zio_flag flags, boolean_t labels); extern zio_t *zio_write_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, void *data, int checksum, - zio_done_func_t *done, void *private, int priority, int flags, + zio_done_func_t *done, void *private, int priority, enum zio_flag flags, boolean_t labels); -extern int zio_alloc_blk(spa_t *spa, uint64_t size, blkptr_t *new_bp, - blkptr_t *old_bp, uint64_t txg); -extern void zio_free_blk(spa_t *spa, blkptr_t *bp, uint64_t txg); +extern zio_t *zio_free_sync(zio_t *pio, spa_t *spa, uint64_t txg, + const blkptr_t *bp, enum zio_flag flags); + +extern int zio_alloc_zil(spa_t *spa, uint64_t txg, blkptr_t *new_bp, + blkptr_t *old_bp, uint64_t size, boolean_t use_slog); +extern void zio_free_zil(spa_t *spa, uint64_t txg, blkptr_t *bp); extern void zio_flush(zio_t *zio, vdev_t *vd); +extern void zio_shrink(zio_t *zio, uint64_t size); extern int zio_wait(zio_t *zio); extern void zio_nowait(zio_t *zio); @@ -406,11 +487,11 @@ extern void zio_resubmit_stage_async(void *); extern zio_t *zio_vdev_child_io(zio_t *zio, blkptr_t *bp, vdev_t *vd, uint64_t offset, void *data, uint64_t size, int type, int priority, - int flags, zio_done_func_t *done, void *private); + enum zio_flag flags, zio_done_func_t *done, void *private); extern zio_t *zio_vdev_delegated_io(vdev_t *vd, uint64_t offset, void *data, uint64_t size, int type, int priority, - int flags, zio_done_func_t *done, void *private); + enum zio_flag flags, zio_done_func_t *done, void *private); extern void zio_vdev_io_bypass(zio_t *zio); extern void zio_vdev_io_reissue(zio_t *zio); @@ -419,8 +500,12 @@ extern void zio_vdev_io_redone(zio_t *zio); extern void zio_checksum_verified(zio_t *zio); extern int zio_worst_error(int e1, int e2); -extern uint8_t zio_checksum_select(uint8_t child, uint8_t parent); -extern uint8_t zio_compress_select(uint8_t child, uint8_t parent); +extern enum zio_checksum zio_checksum_select(enum zio_checksum child, + enum zio_checksum parent); +extern enum zio_checksum zio_checksum_dedup_select(spa_t *spa, + enum zio_checksum child, enum zio_checksum parent); +extern enum zio_compress zio_compress_select(enum zio_compress child, + enum zio_compress parent); extern void zio_suspend(spa_t *spa, zio_t *zio); extern int zio_resume(spa_t *spa); @@ -442,9 +527,30 @@ extern int zio_inject_fault(char *name, int flags, int *id, extern int zio_inject_list_next(int *id, char *name, size_t buflen, struct zinject_record *record); extern int zio_clear_fault(int id); +extern void zio_handle_panic_injection(spa_t *spa, char *tag, uint64_t type); extern int zio_handle_fault_injection(zio_t *zio, int error); extern int zio_handle_device_injection(vdev_t *vd, zio_t *zio, int error); extern int zio_handle_label_injection(zio_t *zio, int error); +extern void zio_handle_ignored_writes(zio_t *zio); + +/* + * Checksum ereport functions + */ +extern void zfs_ereport_start_checksum(spa_t *spa, vdev_t *vd, struct zio *zio, + uint64_t offset, uint64_t length, void *arg, struct zio_bad_cksum *info); +extern void zfs_ereport_finish_checksum(zio_cksum_report_t *report, + const void *good_data, const void *bad_data, boolean_t drop_if_identical); + +extern void zfs_ereport_send_interim_checksum(zio_cksum_report_t *report); +extern void zfs_ereport_free_checksum(zio_cksum_report_t *report); + +/* If we have the good data in hand, this function can be used */ +extern void zfs_ereport_post_checksum(spa_t *spa, vdev_t *vd, + struct zio *zio, uint64_t offset, uint64_t length, + const void *good_data, const void *bad_data, struct zio_bad_cksum *info); + +/* Called from spa_sync(), but primarily an injection handler */ +extern void spa_handle_ignored_writes(spa_t *spa); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/zio_checksum.h b/module/zfs/include/sys/zio_checksum.h index da407399d..0956c04ab 100644 --- a/module/zfs/include/sys/zio_checksum.h +++ b/module/zfs/include/sys/zio_checksum.h @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ZIO_CHECKSUM_H @@ -43,28 +42,31 @@ typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp); typedef struct zio_checksum_info { zio_checksum_t *ci_func[2]; /* checksum function for each byteorder */ int ci_correctable; /* number of correctable bits */ - int ci_zbt; /* uses zio block tail? */ + int ci_eck; /* uses zio embedded checksum? */ + int ci_dedup; /* strong enough for dedup? */ char *ci_name; /* descriptive name */ } zio_checksum_info_t; +typedef struct zio_bad_cksum { + zio_cksum_t zbc_expected; + zio_cksum_t zbc_actual; + const char *zbc_checksum_name; + uint8_t zbc_byteswapped; + uint8_t zbc_injected; + uint8_t zbc_has_cksum; /* expected/actual valid */ +} zio_bad_cksum_t; + extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS]; /* * Checksum routines. */ -extern zio_checksum_t fletcher_2_native; -extern zio_checksum_t fletcher_4_native; -extern zio_checksum_t fletcher_4_incremental_native; - -extern zio_checksum_t fletcher_2_byteswap; -extern zio_checksum_t fletcher_4_byteswap; -extern zio_checksum_t fletcher_4_incremental_byteswap; - extern zio_checksum_t zio_checksum_SHA256; extern void zio_checksum_compute(zio_t *zio, enum zio_checksum checksum, void *data, uint64_t size); -extern int zio_checksum_error(zio_t *zio); +extern int zio_checksum_error(zio_t *zio, zio_bad_cksum_t *out); +extern enum zio_checksum spa_dedup_checksum(spa_t *spa); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/zio_compress.h b/module/zfs/include/sys/zio_compress.h index 66ee8d45b..30bed1a67 100644 --- a/module/zfs/include/sys/zio_compress.h +++ b/module/zfs/include/sys/zio_compress.h @@ -20,15 +20,13 @@ */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_ZIO_COMPRESS_H #define _SYS_ZIO_COMPRESS_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zio.h> #ifdef __cplusplus @@ -66,14 +64,18 @@ extern size_t gzip_compress(void *src, void *dst, size_t s_len, size_t d_len, int level); extern int gzip_decompress(void *src, void *dst, size_t s_len, size_t d_len, int level); +extern size_t zle_compress(void *src, void *dst, size_t s_len, size_t d_len, + int level); +extern int zle_decompress(void *src, void *dst, size_t s_len, size_t d_len, + int level); /* * Compress and decompress data if necessary. */ -extern int zio_compress_data(int cpfunc, void *src, uint64_t srcsize, - void **destp, uint64_t *destsizep, uint64_t *destbufsizep); -extern int zio_decompress_data(int cpfunc, void *src, uint64_t srcsize, - void *dest, uint64_t destsize); +extern size_t zio_compress_data(enum zio_compress c, void *src, void *dst, + size_t s_len); +extern int zio_decompress_data(enum zio_compress c, void *src, void *dst, + size_t s_len, size_t d_len); #ifdef __cplusplus } diff --git a/module/zfs/include/sys/zio_impl.h b/module/zfs/include/sys/zio_impl.h index e7503b733..d90bd8bd5 100644 --- a/module/zfs/include/sys/zio_impl.h +++ b/module/zfs/include/sys/zio_impl.h @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -34,104 +34,136 @@ extern "C" { #endif /* - * I/O Groups: pipeline stage definitions. + * zio pipeline stage definitions */ -typedef enum zio_stage { - ZIO_STAGE_OPEN = 0, /* RWFCI */ +enum zio_stage { + ZIO_STAGE_OPEN = 1 << 0, /* RWFCI */ - ZIO_STAGE_ISSUE_ASYNC, /* -W--- */ + ZIO_STAGE_READ_BP_INIT = 1 << 1, /* R---- */ + ZIO_STAGE_FREE_BP_INIT = 1 << 2, /* --F-- */ + ZIO_STAGE_ISSUE_ASYNC = 1 << 3, /* RWF-- */ + ZIO_STAGE_WRITE_BP_INIT = 1 << 4, /* -W--- */ - ZIO_STAGE_READ_BP_INIT, /* R---- */ - ZIO_STAGE_WRITE_BP_INIT, /* -W--- */ + ZIO_STAGE_CHECKSUM_GENERATE = 1 << 5, /* -W--- */ - ZIO_STAGE_CHECKSUM_GENERATE, /* -W--- */ + ZIO_STAGE_DDT_READ_START = 1 << 6, /* R---- */ + ZIO_STAGE_DDT_READ_DONE = 1 << 7, /* R---- */ + ZIO_STAGE_DDT_WRITE = 1 << 8, /* -W--- */ + ZIO_STAGE_DDT_FREE = 1 << 9, /* --F-- */ - ZIO_STAGE_GANG_ASSEMBLE, /* RWFC- */ - ZIO_STAGE_GANG_ISSUE, /* RWFC- */ + ZIO_STAGE_GANG_ASSEMBLE = 1 << 10, /* RWFC- */ + ZIO_STAGE_GANG_ISSUE = 1 << 11, /* RWFC- */ - ZIO_STAGE_DVA_ALLOCATE, /* -W--- */ - ZIO_STAGE_DVA_FREE, /* --F-- */ - ZIO_STAGE_DVA_CLAIM, /* ---C- */ + ZIO_STAGE_DVA_ALLOCATE = 1 << 12, /* -W--- */ + ZIO_STAGE_DVA_FREE = 1 << 13, /* --F-- */ + ZIO_STAGE_DVA_CLAIM = 1 << 14, /* ---C- */ - ZIO_STAGE_READY, /* RWFCI */ + ZIO_STAGE_READY = 1 << 15, /* RWFCI */ - ZIO_STAGE_VDEV_IO_START, /* RW--I */ - ZIO_STAGE_VDEV_IO_DONE, /* RW--I */ - ZIO_STAGE_VDEV_IO_ASSESS, /* RW--I */ + ZIO_STAGE_VDEV_IO_START = 1 << 16, /* RW--I */ + ZIO_STAGE_VDEV_IO_DONE = 1 << 17, /* RW--I */ + ZIO_STAGE_VDEV_IO_ASSESS = 1 << 18, /* RW--I */ - ZIO_STAGE_CHECKSUM_VERIFY, /* R---- */ + ZIO_STAGE_CHECKSUM_VERIFY = 1 << 19, /* R---- */ - ZIO_STAGE_DONE, /* RWFCI */ - ZIO_STAGES -} zio_stage_t; + ZIO_STAGE_DONE = 1 << 20 /* RWFCI */ +}; -#define ZIO_INTERLOCK_STAGES \ - ((1U << ZIO_STAGE_READY) | \ - (1U << ZIO_STAGE_DONE)) +#define ZIO_INTERLOCK_STAGES \ + (ZIO_STAGE_READY | \ + ZIO_STAGE_DONE) -#define ZIO_INTERLOCK_PIPELINE \ +#define ZIO_INTERLOCK_PIPELINE \ ZIO_INTERLOCK_STAGES -#define ZIO_VDEV_IO_STAGES \ - ((1U << ZIO_STAGE_VDEV_IO_START) | \ - (1U << ZIO_STAGE_VDEV_IO_DONE) | \ - (1U << ZIO_STAGE_VDEV_IO_ASSESS)) +#define ZIO_VDEV_IO_STAGES \ + (ZIO_STAGE_VDEV_IO_START | \ + ZIO_STAGE_VDEV_IO_DONE | \ + ZIO_STAGE_VDEV_IO_ASSESS) -#define ZIO_VDEV_CHILD_PIPELINE \ - (ZIO_VDEV_IO_STAGES | \ - (1U << ZIO_STAGE_DONE)) +#define ZIO_VDEV_CHILD_PIPELINE \ + (ZIO_VDEV_IO_STAGES | \ + ZIO_STAGE_DONE) -#define ZIO_READ_COMMON_STAGES \ - (ZIO_INTERLOCK_STAGES | \ - ZIO_VDEV_IO_STAGES | \ - (1U << ZIO_STAGE_CHECKSUM_VERIFY)) +#define ZIO_READ_COMMON_STAGES \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_VDEV_IO_STAGES | \ + ZIO_STAGE_CHECKSUM_VERIFY) -#define ZIO_READ_PHYS_PIPELINE \ +#define ZIO_READ_PHYS_PIPELINE \ ZIO_READ_COMMON_STAGES -#define ZIO_READ_PIPELINE \ - (ZIO_READ_COMMON_STAGES | \ - (1U << ZIO_STAGE_READ_BP_INIT)) +#define ZIO_READ_PIPELINE \ + (ZIO_READ_COMMON_STAGES | \ + ZIO_STAGE_READ_BP_INIT) -#define ZIO_WRITE_COMMON_STAGES \ - (ZIO_INTERLOCK_STAGES | \ - ZIO_VDEV_IO_STAGES | \ - (1U << ZIO_STAGE_ISSUE_ASYNC) | \ - (1U << ZIO_STAGE_CHECKSUM_GENERATE)) - -#define ZIO_WRITE_PHYS_PIPELINE \ - ZIO_WRITE_COMMON_STAGES - -#define ZIO_REWRITE_PIPELINE \ - (ZIO_WRITE_COMMON_STAGES | \ - (1U << ZIO_STAGE_WRITE_BP_INIT)) - -#define ZIO_WRITE_PIPELINE \ - (ZIO_WRITE_COMMON_STAGES | \ - (1U << ZIO_STAGE_WRITE_BP_INIT) | \ - (1U << ZIO_STAGE_DVA_ALLOCATE)) - -#define ZIO_GANG_STAGES \ - ((1U << ZIO_STAGE_GANG_ASSEMBLE) | \ - (1U << ZIO_STAGE_GANG_ISSUE)) +#define ZIO_DDT_CHILD_READ_PIPELINE \ + ZIO_READ_COMMON_STAGES -#define ZIO_FREE_PIPELINE \ - (ZIO_INTERLOCK_STAGES | \ - (1U << ZIO_STAGE_DVA_FREE)) +#define ZIO_DDT_READ_PIPELINE \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_STAGE_READ_BP_INIT | \ + ZIO_STAGE_DDT_READ_START | \ + ZIO_STAGE_DDT_READ_DONE) -#define ZIO_CLAIM_PIPELINE \ - (ZIO_INTERLOCK_STAGES | \ - (1U << ZIO_STAGE_DVA_CLAIM)) +#define ZIO_WRITE_COMMON_STAGES \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_VDEV_IO_STAGES | \ + ZIO_STAGE_ISSUE_ASYNC | \ + ZIO_STAGE_CHECKSUM_GENERATE) -#define ZIO_IOCTL_PIPELINE \ - (ZIO_INTERLOCK_STAGES | \ - (1U << ZIO_STAGE_VDEV_IO_START) | \ - (1U << ZIO_STAGE_VDEV_IO_ASSESS)) +#define ZIO_WRITE_PHYS_PIPELINE \ + ZIO_WRITE_COMMON_STAGES -#define ZIO_CONFIG_LOCK_BLOCKING_STAGES \ - ((1U << ZIO_STAGE_VDEV_IO_START) | \ - (1U << ZIO_STAGE_DVA_ALLOCATE) | \ - (1U << ZIO_STAGE_DVA_CLAIM)) +#define ZIO_REWRITE_PIPELINE \ + (ZIO_WRITE_COMMON_STAGES | \ + ZIO_STAGE_WRITE_BP_INIT) + +#define ZIO_WRITE_PIPELINE \ + (ZIO_WRITE_COMMON_STAGES | \ + ZIO_STAGE_WRITE_BP_INIT | \ + ZIO_STAGE_DVA_ALLOCATE) + +#define ZIO_DDT_CHILD_WRITE_PIPELINE \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_VDEV_IO_STAGES | \ + ZIO_STAGE_DVA_ALLOCATE) + +#define ZIO_DDT_WRITE_PIPELINE \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_STAGE_ISSUE_ASYNC | \ + ZIO_STAGE_WRITE_BP_INIT | \ + ZIO_STAGE_CHECKSUM_GENERATE | \ + ZIO_STAGE_DDT_WRITE) + +#define ZIO_GANG_STAGES \ + (ZIO_STAGE_GANG_ASSEMBLE | \ + ZIO_STAGE_GANG_ISSUE) + +#define ZIO_FREE_PIPELINE \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_STAGE_FREE_BP_INIT | \ + ZIO_STAGE_DVA_FREE) + +#define ZIO_DDT_FREE_PIPELINE \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_STAGE_FREE_BP_INIT | \ + ZIO_STAGE_ISSUE_ASYNC | \ + ZIO_STAGE_DDT_FREE) + +#define ZIO_CLAIM_PIPELINE \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_STAGE_DVA_CLAIM) + +#define ZIO_IOCTL_PIPELINE \ + (ZIO_INTERLOCK_STAGES | \ + ZIO_STAGE_VDEV_IO_START | \ + ZIO_STAGE_VDEV_IO_ASSESS) + +#define ZIO_BLOCKING_STAGES \ + (ZIO_STAGE_DVA_ALLOCATE | \ + ZIO_STAGE_DVA_CLAIM | \ + ZIO_STAGE_VDEV_IO_START) extern void zio_inject_init(void); extern void zio_inject_fini(void); diff --git a/module/zfs/include/sys/zvol.h b/module/zfs/include/sys/zvol.h index 06adc667e..0059bf510 100644 --- a/module/zfs/include/sys/zvol.h +++ b/module/zfs/include/sys/zvol.h @@ -20,15 +20,12 @@ */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ZVOL_H #define _SYS_ZVOL_H -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #ifdef __cplusplus @@ -43,10 +40,10 @@ extern int zvol_check_volsize(uint64_t volsize, uint64_t blocksize); extern int zvol_check_volblocksize(uint64_t volblocksize); extern int zvol_get_stats(objset_t *os, nvlist_t *nv); extern void zvol_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); -extern int zvol_create_minor(const char *, major_t); +extern int zvol_create_minor(const char *); extern int zvol_remove_minor(const char *); +extern void zvol_remove_minors(const char *); extern int zvol_set_volsize(const char *, major_t, uint64_t); -extern int zvol_set_volblocksize(const char *, uint64_t); extern int zvol_open(dev_t *devp, int flag, int otyp, cred_t *cr); extern int zvol_dump(dev_t dev, caddr_t addr, daddr_t offset, int nblocks); @@ -61,6 +58,15 @@ extern int zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, extern int zvol_busy(void); extern void zvol_init(void); extern void zvol_fini(void); + +extern int zvol_get_volume_params(minor_t minor, uint64_t *blksize, + uint64_t *max_xfer_len, void **minor_hdl, void **objset_hdl, void **zil_hdl, + void **rl_hdl, void **bonus_hdl); +extern uint64_t zvol_get_volume_size(void *minor_hdl); +extern int zvol_get_volume_wce(void *minor_hdl); +extern void zvol_log_write_minor(void *minor_hdl, dmu_tx_t *tx, offset_t off, + ssize_t resid, boolean_t sync); + #endif #ifdef __cplusplus diff --git a/module/zfs/lzjb.c b/module/zfs/lzjb.c index 7fcde8475..10952f472 100644 --- a/module/zfs/lzjb.c +++ b/module/zfs/lzjb.c @@ -20,18 +20,18 @@ */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - /* * We keep our own copy of this algorithm for 2 main reasons: - * 1. If we didn't, anyone modifying common/os/compress.c would + * 1. If we didn't, anyone modifying common/os/compress.c would * directly break our on disk format - * 2. Our version of lzjb does not have a number of checks that the + * 2. Our version of lzjb does not have a number of checks that the * common/os version needs and uses + * 3. We initialize the lempel to ensure deterministic results, + * so that identical blocks can always be deduplicated. * In particular, we are adding the "feature" that compress() can * take a destination buffer size and return -1 if the data will not * compress to d_len or less. @@ -43,7 +43,7 @@ #define MATCH_MIN 3 #define MATCH_MAX ((1 << MATCH_BITS) + (MATCH_MIN - 1)) #define OFFSET_MASK ((1 << (16 - MATCH_BITS)) - 1) -#define LEMPEL_SIZE 256 +#define LEMPEL_SIZE 1024 /*ARGSUSED*/ size_t @@ -53,20 +53,14 @@ lzjb_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) uchar_t *dst = d_start; uchar_t *cpy, *copymap; int copymask = 1 << (NBBY - 1); - int mlen, offset; + int mlen, offset, hash; uint16_t *hp; - uint16_t lempel[LEMPEL_SIZE]; /* uninitialized; see above */ + uint16_t lempel[LEMPEL_SIZE] = { 0 }; while (src < (uchar_t *)s_start + s_len) { if ((copymask <<= 1) == (1 << NBBY)) { - if (dst >= (uchar_t *)d_start + d_len - 1 - 2 * NBBY) { - if (d_len != s_len) - return (s_len); - mlen = s_len; - for (src = s_start, dst = d_start; mlen; mlen--) - *dst++ = *src++; + if (dst >= (uchar_t *)d_start + d_len - 1 - 2 * NBBY) return (s_len); - } copymask = 1; copymap = dst; *dst++ = 0; @@ -75,8 +69,10 @@ lzjb_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) *dst++ = *src++; continue; } - hp = &lempel[((src[0] + 13) ^ (src[1] - 13) ^ src[2]) & - (LEMPEL_SIZE - 1)]; + hash = (src[0] << 16) + (src[1] << 8) + src[2]; + hash += hash >> 9; + hash += hash >> 5; + hp = &lempel[hash & (LEMPEL_SIZE - 1)]; offset = (intptr_t)(src - *hp) & OFFSET_MASK; *hp = (uint16_t)(uintptr_t)src; cpy = src - offset; diff --git a/module/zfs/metaslab.c b/module/zfs/metaslab.c index 77556ac5d..17b4b12c4 100644 --- a/module/zfs/metaslab.c +++ b/module/zfs/metaslab.c @@ -19,12 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> -#include <sys/spa_impl.h> #include <sys/dmu.h> #include <sys/dmu_tx.h> #include <sys/space_map.h> @@ -36,8 +34,13 @@ uint64_t metaslab_aliquot = 512ULL << 10; uint64_t metaslab_gang_bang = SPA_MAXBLOCKSIZE + 1; /* force gang blocks */ /* + * Metaslab debugging: when set, keeps all space maps in core to verify frees. + */ +static int metaslab_debug = 0; + +/* * Minimum size which forces the dynamic allocator to change - * it's allocation strategy. Once the space map cannot satisfy + * it's allocation strategy. Once the space map cannot satisfy * an allocation of this size then it switches to using more * aggressive strategy (i.e search by size rather than offset). */ @@ -49,7 +52,23 @@ uint64_t metaslab_df_alloc_threshold = SPA_MAXBLOCKSIZE; * Once the space_map's free space drops below this level we dynamically * switch to using best-fit allocations. */ -int metaslab_df_free_pct = 30; +int metaslab_df_free_pct = 4; + +/* + * A metaslab is considered "free" if it contains a contiguous + * segment which is greater than metaslab_min_alloc_size. + */ +uint64_t metaslab_min_alloc_size = DMU_MAX_ACCESS; + +/* + * Max number of space_maps to prefetch. + */ +int metaslab_prefetch_limit = SPA_DVAS_PER_BP; + +/* + * Percentage bonus multiplier for metaslabs that are in the bonus area. + */ +int metaslab_smo_bonus_pct = 150; /* * ========================================================================== @@ -57,12 +76,13 @@ int metaslab_df_free_pct = 30; * ========================================================================== */ metaslab_class_t * -metaslab_class_create(space_map_ops_t *ops) +metaslab_class_create(spa_t *spa, space_map_ops_t *ops) { metaslab_class_t *mc; mc = kmem_zalloc(sizeof (metaslab_class_t), KM_SLEEP); + mc->mc_spa = spa; mc->mc_rotor = NULL; mc->mc_ops = ops; @@ -72,58 +92,73 @@ metaslab_class_create(space_map_ops_t *ops) void metaslab_class_destroy(metaslab_class_t *mc) { - metaslab_group_t *mg; - - while ((mg = mc->mc_rotor) != NULL) { - metaslab_class_remove(mc, mg); - metaslab_group_destroy(mg); - } + ASSERT(mc->mc_rotor == NULL); + ASSERT(mc->mc_alloc == 0); + ASSERT(mc->mc_deferred == 0); + ASSERT(mc->mc_space == 0); + ASSERT(mc->mc_dspace == 0); kmem_free(mc, sizeof (metaslab_class_t)); } -void -metaslab_class_add(metaslab_class_t *mc, metaslab_group_t *mg) +int +metaslab_class_validate(metaslab_class_t *mc) { - metaslab_group_t *mgprev, *mgnext; + metaslab_group_t *mg; + vdev_t *vd; - ASSERT(mg->mg_class == NULL); + /* + * Must hold one of the spa_config locks. + */ + ASSERT(spa_config_held(mc->mc_spa, SCL_ALL, RW_READER) || + spa_config_held(mc->mc_spa, SCL_ALL, RW_WRITER)); - if ((mgprev = mc->mc_rotor) == NULL) { - mg->mg_prev = mg; - mg->mg_next = mg; - } else { - mgnext = mgprev->mg_next; - mg->mg_prev = mgprev; - mg->mg_next = mgnext; - mgprev->mg_next = mg; - mgnext->mg_prev = mg; - } - mc->mc_rotor = mg; - mg->mg_class = mc; + if ((mg = mc->mc_rotor) == NULL) + return (0); + + do { + vd = mg->mg_vd; + ASSERT(vd->vdev_mg != NULL); + ASSERT3P(vd->vdev_top, ==, vd); + ASSERT3P(mg->mg_class, ==, mc); + ASSERT3P(vd->vdev_ops, !=, &vdev_hole_ops); + } while ((mg = mg->mg_next) != mc->mc_rotor); + + return (0); } void -metaslab_class_remove(metaslab_class_t *mc, metaslab_group_t *mg) +metaslab_class_space_update(metaslab_class_t *mc, int64_t alloc_delta, + int64_t defer_delta, int64_t space_delta, int64_t dspace_delta) { - metaslab_group_t *mgprev, *mgnext; + atomic_add_64(&mc->mc_alloc, alloc_delta); + atomic_add_64(&mc->mc_deferred, defer_delta); + atomic_add_64(&mc->mc_space, space_delta); + atomic_add_64(&mc->mc_dspace, dspace_delta); +} - ASSERT(mg->mg_class == mc); +uint64_t +metaslab_class_get_alloc(metaslab_class_t *mc) +{ + return (mc->mc_alloc); +} - mgprev = mg->mg_prev; - mgnext = mg->mg_next; +uint64_t +metaslab_class_get_deferred(metaslab_class_t *mc) +{ + return (mc->mc_deferred); +} - if (mg == mgnext) { - mc->mc_rotor = NULL; - } else { - mc->mc_rotor = mgnext; - mgprev->mg_next = mgnext; - mgnext->mg_prev = mgprev; - } +uint64_t +metaslab_class_get_space(metaslab_class_t *mc) +{ + return (mc->mc_space); +} - mg->mg_prev = NULL; - mg->mg_next = NULL; - mg->mg_class = NULL; +uint64_t +metaslab_class_get_dspace(metaslab_class_t *mc) +{ + return (spa_deflate(mc->mc_spa) ? mc->mc_dspace : mc->mc_space); } /* @@ -164,9 +199,9 @@ metaslab_group_create(metaslab_class_t *mc, vdev_t *vd) mutex_init(&mg->mg_lock, NULL, MUTEX_DEFAULT, NULL); avl_create(&mg->mg_metaslab_tree, metaslab_compare, sizeof (metaslab_t), offsetof(struct metaslab, ms_group_node)); - mg->mg_aliquot = metaslab_aliquot * MAX(1, vd->vdev_children); mg->mg_vd = vd; - metaslab_class_add(mc, mg); + mg->mg_class = mc; + mg->mg_activation_count = 0; return (mg); } @@ -174,11 +209,82 @@ metaslab_group_create(metaslab_class_t *mc, vdev_t *vd) void metaslab_group_destroy(metaslab_group_t *mg) { + ASSERT(mg->mg_prev == NULL); + ASSERT(mg->mg_next == NULL); + /* + * We may have gone below zero with the activation count + * either because we never activated in the first place or + * because we're done, and possibly removing the vdev. + */ + ASSERT(mg->mg_activation_count <= 0); + avl_destroy(&mg->mg_metaslab_tree); mutex_destroy(&mg->mg_lock); kmem_free(mg, sizeof (metaslab_group_t)); } +void +metaslab_group_activate(metaslab_group_t *mg) +{ + metaslab_class_t *mc = mg->mg_class; + metaslab_group_t *mgprev, *mgnext; + + ASSERT(spa_config_held(mc->mc_spa, SCL_ALLOC, RW_WRITER)); + + ASSERT(mc->mc_rotor != mg); + ASSERT(mg->mg_prev == NULL); + ASSERT(mg->mg_next == NULL); + ASSERT(mg->mg_activation_count <= 0); + + if (++mg->mg_activation_count <= 0) + return; + + mg->mg_aliquot = metaslab_aliquot * MAX(1, mg->mg_vd->vdev_children); + + if ((mgprev = mc->mc_rotor) == NULL) { + mg->mg_prev = mg; + mg->mg_next = mg; + } else { + mgnext = mgprev->mg_next; + mg->mg_prev = mgprev; + mg->mg_next = mgnext; + mgprev->mg_next = mg; + mgnext->mg_prev = mg; + } + mc->mc_rotor = mg; +} + +void +metaslab_group_passivate(metaslab_group_t *mg) +{ + metaslab_class_t *mc = mg->mg_class; + metaslab_group_t *mgprev, *mgnext; + + ASSERT(spa_config_held(mc->mc_spa, SCL_ALLOC, RW_WRITER)); + + if (--mg->mg_activation_count != 0) { + ASSERT(mc->mc_rotor != mg); + ASSERT(mg->mg_prev == NULL); + ASSERT(mg->mg_next == NULL); + ASSERT(mg->mg_activation_count < 0); + return; + } + + mgprev = mg->mg_prev; + mgnext = mg->mg_next; + + if (mg == mgnext) { + mc->mc_rotor = NULL; + } else { + mc->mc_rotor = mgnext; + mgprev->mg_next = mgnext; + mgnext->mg_prev = mgprev; + } + + mg->mg_prev = NULL; + mg->mg_next = NULL; +} + static void metaslab_group_add(metaslab_group_t *mg, metaslab_t *msp) { @@ -219,6 +325,32 @@ metaslab_group_sort(metaslab_group_t *mg, metaslab_t *msp, uint64_t weight) } /* + * ========================================================================== + * Common allocator routines + * ========================================================================== + */ +static int +metaslab_segsize_compare(const void *x1, const void *x2) +{ + const space_seg_t *s1 = x1; + const space_seg_t *s2 = x2; + uint64_t ss_size1 = s1->ss_end - s1->ss_start; + uint64_t ss_size2 = s2->ss_end - s2->ss_start; + + if (ss_size1 < ss_size2) + return (-1); + if (ss_size1 > ss_size2) + return (1); + + if (s1->ss_start < s2->ss_start) + return (-1); + if (s1->ss_start > s2->ss_start) + return (1); + + return (0); +} + +/* * This is a helper function that can be used by the allocator to find * a suitable block to allocate. This will search the specified AVL * tree looking for a block that matches the specified criteria. @@ -258,68 +390,58 @@ metaslab_block_picker(avl_tree_t *t, uint64_t *cursor, uint64_t size, return (metaslab_block_picker(t, cursor, size, align)); } -/* - * ========================================================================== - * The first-fit block allocator - * ========================================================================== - */ static void -metaslab_ff_load(space_map_t *sm) +metaslab_pp_load(space_map_t *sm) { + space_seg_t *ss; + ASSERT(sm->sm_ppd == NULL); sm->sm_ppd = kmem_zalloc(64 * sizeof (uint64_t), KM_SLEEP); - sm->sm_pp_root = NULL; + + sm->sm_pp_root = kmem_alloc(sizeof (avl_tree_t), KM_SLEEP); + avl_create(sm->sm_pp_root, metaslab_segsize_compare, + sizeof (space_seg_t), offsetof(struct space_seg, ss_pp_node)); + + for (ss = avl_first(&sm->sm_root); ss; ss = AVL_NEXT(&sm->sm_root, ss)) + avl_add(sm->sm_pp_root, ss); } static void -metaslab_ff_unload(space_map_t *sm) +metaslab_pp_unload(space_map_t *sm) { + void *cookie = NULL; + kmem_free(sm->sm_ppd, 64 * sizeof (uint64_t)); sm->sm_ppd = NULL; -} -static uint64_t -metaslab_ff_alloc(space_map_t *sm, uint64_t size) -{ - avl_tree_t *t = &sm->sm_root; - uint64_t align = size & -size; - uint64_t *cursor = (uint64_t *)sm->sm_ppd + highbit(align) - 1; + while (avl_destroy_nodes(sm->sm_pp_root, &cookie) != NULL) { + /* tear down the tree */ + } - return (metaslab_block_picker(t, cursor, size, align)); + avl_destroy(sm->sm_pp_root); + kmem_free(sm->sm_pp_root, sizeof (avl_tree_t)); + sm->sm_pp_root = NULL; } /* ARGSUSED */ static void -metaslab_ff_claim(space_map_t *sm, uint64_t start, uint64_t size) +metaslab_pp_claim(space_map_t *sm, uint64_t start, uint64_t size) { /* No need to update cursor */ } /* ARGSUSED */ static void -metaslab_ff_free(space_map_t *sm, uint64_t start, uint64_t size) +metaslab_pp_free(space_map_t *sm, uint64_t start, uint64_t size) { /* No need to update cursor */ } -static space_map_ops_t metaslab_ff_ops = { - metaslab_ff_load, - metaslab_ff_unload, - metaslab_ff_alloc, - metaslab_ff_claim, - metaslab_ff_free, - NULL /* maxsize */ -}; - /* - * Dynamic block allocator - - * Uses the first fit allocation scheme until space get low and then - * adjusts to a best fit allocation method. Uses metaslab_df_alloc_threshold - * and metaslab_df_free_pct to determine when to switch the allocation scheme. + * Return the maximum contiguous segment within the metaslab. */ - uint64_t -metaslab_df_maxsize(space_map_t *sm) +metaslab_pp_maxsize(space_map_t *sm) { avl_tree_t *t = sm->sm_pp_root; space_seg_t *ss; @@ -330,67 +452,53 @@ metaslab_df_maxsize(space_map_t *sm) return (ss->ss_end - ss->ss_start); } -static int -metaslab_df_seg_compare(const void *x1, const void *x2) +/* + * ========================================================================== + * The first-fit block allocator + * ========================================================================== + */ +static uint64_t +metaslab_ff_alloc(space_map_t *sm, uint64_t size) { - const space_seg_t *s1 = x1; - const space_seg_t *s2 = x2; - uint64_t ss_size1 = s1->ss_end - s1->ss_start; - uint64_t ss_size2 = s2->ss_end - s2->ss_start; - - if (ss_size1 < ss_size2) - return (-1); - if (ss_size1 > ss_size2) - return (1); - - if (s1->ss_start < s2->ss_start) - return (-1); - if (s1->ss_start > s2->ss_start) - return (1); + avl_tree_t *t = &sm->sm_root; + uint64_t align = size & -size; + uint64_t *cursor = (uint64_t *)sm->sm_ppd + highbit(align) - 1; - return (0); + return (metaslab_block_picker(t, cursor, size, align)); } -static void -metaslab_df_load(space_map_t *sm) +/* ARGSUSED */ +boolean_t +metaslab_ff_fragmented(space_map_t *sm) { - space_seg_t *ss; - - ASSERT(sm->sm_ppd == NULL); - sm->sm_ppd = kmem_zalloc(64 * sizeof (uint64_t), KM_SLEEP); - - sm->sm_pp_root = kmem_alloc(sizeof (avl_tree_t), KM_SLEEP); - avl_create(sm->sm_pp_root, metaslab_df_seg_compare, - sizeof (space_seg_t), offsetof(struct space_seg, ss_pp_node)); - - for (ss = avl_first(&sm->sm_root); ss; ss = AVL_NEXT(&sm->sm_root, ss)) - avl_add(sm->sm_pp_root, ss); + return (B_TRUE); } -static void -metaslab_df_unload(space_map_t *sm) -{ - void *cookie = NULL; - - kmem_free(sm->sm_ppd, 64 * sizeof (uint64_t)); - sm->sm_ppd = NULL; - - while (avl_destroy_nodes(sm->sm_pp_root, &cookie) != NULL) { - /* tear down the tree */ - } - - avl_destroy(sm->sm_pp_root); - kmem_free(sm->sm_pp_root, sizeof (avl_tree_t)); - sm->sm_pp_root = NULL; -} +static space_map_ops_t metaslab_ff_ops = { + metaslab_pp_load, + metaslab_pp_unload, + metaslab_ff_alloc, + metaslab_pp_claim, + metaslab_pp_free, + metaslab_pp_maxsize, + metaslab_ff_fragmented +}; +/* + * ========================================================================== + * Dynamic block allocator - + * Uses the first fit allocation scheme until space get low and then + * adjusts to a best fit allocation method. Uses metaslab_df_alloc_threshold + * and metaslab_df_free_pct to determine when to switch the allocation scheme. + * ========================================================================== + */ static uint64_t metaslab_df_alloc(space_map_t *sm, uint64_t size) { avl_tree_t *t = &sm->sm_root; uint64_t align = size & -size; uint64_t *cursor = (uint64_t *)sm->sm_ppd + highbit(align) - 1; - uint64_t max_size = metaslab_df_maxsize(sm); + uint64_t max_size = metaslab_pp_maxsize(sm); int free_pct = sm->sm_space * 100 / sm->sm_size; ASSERT(MUTEX_HELD(sm->sm_lock)); @@ -412,30 +520,158 @@ metaslab_df_alloc(space_map_t *sm, uint64_t size) return (metaslab_block_picker(t, cursor, size, 1ULL)); } -/* ARGSUSED */ -static void -metaslab_df_claim(space_map_t *sm, uint64_t start, uint64_t size) +static boolean_t +metaslab_df_fragmented(space_map_t *sm) { - /* No need to update cursor */ -} + uint64_t max_size = metaslab_pp_maxsize(sm); + int free_pct = sm->sm_space * 100 / sm->sm_size; -/* ARGSUSED */ -static void -metaslab_df_free(space_map_t *sm, uint64_t start, uint64_t size) -{ - /* No need to update cursor */ + if (max_size >= metaslab_df_alloc_threshold && + free_pct >= metaslab_df_free_pct) + return (B_FALSE); + + return (B_TRUE); } static space_map_ops_t metaslab_df_ops = { - metaslab_df_load, - metaslab_df_unload, + metaslab_pp_load, + metaslab_pp_unload, metaslab_df_alloc, - metaslab_df_claim, - metaslab_df_free, - metaslab_df_maxsize + metaslab_pp_claim, + metaslab_pp_free, + metaslab_pp_maxsize, + metaslab_df_fragmented }; -space_map_ops_t *zfs_metaslab_ops = &metaslab_df_ops; +/* + * ========================================================================== + * Other experimental allocators + * ========================================================================== + */ +static uint64_t +metaslab_cdf_alloc(space_map_t *sm, uint64_t size) +{ + avl_tree_t *t = &sm->sm_root; + uint64_t *cursor = (uint64_t *)sm->sm_ppd; + uint64_t *extent_end = (uint64_t *)sm->sm_ppd + 1; + uint64_t max_size = metaslab_pp_maxsize(sm); + uint64_t rsize = size; + uint64_t offset = 0; + + ASSERT(MUTEX_HELD(sm->sm_lock)); + ASSERT3U(avl_numnodes(&sm->sm_root), ==, avl_numnodes(sm->sm_pp_root)); + + if (max_size < size) + return (-1ULL); + + ASSERT3U(*extent_end, >=, *cursor); + + /* + * If we're running low on space switch to using the size + * sorted AVL tree (best-fit). + */ + if ((*cursor + size) > *extent_end) { + + t = sm->sm_pp_root; + *cursor = *extent_end = 0; + + if (max_size > 2 * SPA_MAXBLOCKSIZE) + rsize = MIN(metaslab_min_alloc_size, max_size); + offset = metaslab_block_picker(t, extent_end, rsize, 1ULL); + if (offset != -1) + *cursor = offset + size; + } else { + offset = metaslab_block_picker(t, cursor, rsize, 1ULL); + } + ASSERT3U(*cursor, <=, *extent_end); + return (offset); +} + +static boolean_t +metaslab_cdf_fragmented(space_map_t *sm) +{ + uint64_t max_size = metaslab_pp_maxsize(sm); + + if (max_size > (metaslab_min_alloc_size * 10)) + return (B_FALSE); + return (B_TRUE); +} + +static space_map_ops_t metaslab_cdf_ops = { + metaslab_pp_load, + metaslab_pp_unload, + metaslab_cdf_alloc, + metaslab_pp_claim, + metaslab_pp_free, + metaslab_pp_maxsize, + metaslab_cdf_fragmented +}; + +uint64_t metaslab_ndf_clump_shift = 4; + +static uint64_t +metaslab_ndf_alloc(space_map_t *sm, uint64_t size) +{ + avl_tree_t *t = &sm->sm_root; + avl_index_t where; + space_seg_t *ss, ssearch; + uint64_t hbit = highbit(size); + uint64_t *cursor = (uint64_t *)sm->sm_ppd + hbit - 1; + uint64_t max_size = metaslab_pp_maxsize(sm); + + ASSERT(MUTEX_HELD(sm->sm_lock)); + ASSERT3U(avl_numnodes(&sm->sm_root), ==, avl_numnodes(sm->sm_pp_root)); + + if (max_size < size) + return (-1ULL); + + ssearch.ss_start = *cursor; + ssearch.ss_end = *cursor + size; + + ss = avl_find(t, &ssearch, &where); + if (ss == NULL || (ss->ss_start + size > ss->ss_end)) { + t = sm->sm_pp_root; + + ssearch.ss_start = 0; + ssearch.ss_end = MIN(max_size, + 1ULL << (hbit + metaslab_ndf_clump_shift)); + ss = avl_find(t, &ssearch, &where); + if (ss == NULL) + ss = avl_nearest(t, where, AVL_AFTER); + ASSERT(ss != NULL); + } + + if (ss != NULL) { + if (ss->ss_start + size <= ss->ss_end) { + *cursor = ss->ss_start + size; + return (ss->ss_start); + } + } + return (-1ULL); +} + +static boolean_t +metaslab_ndf_fragmented(space_map_t *sm) +{ + uint64_t max_size = metaslab_pp_maxsize(sm); + + if (max_size > (metaslab_min_alloc_size << metaslab_ndf_clump_shift)) + return (B_FALSE); + return (B_TRUE); +} + + +static space_map_ops_t metaslab_ndf_ops = { + metaslab_pp_load, + metaslab_pp_unload, + metaslab_ndf_alloc, + metaslab_pp_claim, + metaslab_pp_free, + metaslab_pp_maxsize, + metaslab_ndf_fragmented +}; + +space_map_ops_t *zfs_metaslab_ops = &metaslab_ndf_ops; /* * ========================================================================== @@ -466,6 +702,13 @@ metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo, metaslab_group_add(mg, msp); + if (metaslab_debug && smo->smo_object != 0) { + mutex_enter(&msp->ms_lock); + VERIFY(space_map_load(&msp->ms_map, mg->mg_class->mc_ops, + SM_FREE, smo, spa_meta_objset(vd->vdev_spa)) == 0); + mutex_exit(&msp->ms_lock); + } + /* * If we're opening an existing pool (txg == 0) or creating * a new one (txg == TXG_INITIAL), all space is available now. @@ -476,16 +719,8 @@ metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo, metaslab_sync_done(msp, 0); if (txg != 0) { - /* - * The vdev is dirty, but the metaslab isn't -- it just needs - * to have metaslab_sync_done() invoked from vdev_sync_done(). - * [We could just dirty the metaslab, but that would cause us - * to allocate a space map object for it, which is wasteful - * and would mess up the locality logic in metaslab_weight().] - */ - ASSERT(TXG_CLEAN(txg) == spa_last_synced_txg(vd->vdev_spa)); vdev_dirty(vd, 0, NULL, txg); - vdev_dirty(vd, VDD_METASLAB, msp, TXG_CLEAN(txg)); + vdev_dirty(vd, VDD_METASLAB, msp, txg); } return (msp); @@ -495,10 +730,9 @@ void metaslab_fini(metaslab_t *msp) { metaslab_group_t *mg = msp->ms_group; - int t; - vdev_space_update(mg->mg_vd, -msp->ms_map.sm_size, - -msp->ms_smo.smo_alloc, B_TRUE); + vdev_space_update(mg->mg_vd, + -msp->ms_smo.smo_alloc, 0, -msp->ms_map.sm_size); metaslab_group_remove(mg, msp); @@ -507,11 +741,16 @@ metaslab_fini(metaslab_t *msp) space_map_unload(&msp->ms_map); space_map_destroy(&msp->ms_map); - for (t = 0; t < TXG_SIZE; t++) { + for (int t = 0; t < TXG_SIZE; t++) { space_map_destroy(&msp->ms_allocmap[t]); space_map_destroy(&msp->ms_freemap[t]); } + for (int t = 0; t < TXG_DEFER_SIZE; t++) + space_map_destroy(&msp->ms_defermap[t]); + + ASSERT3S(msp->ms_deferspace, ==, 0); + mutex_exit(&msp->ms_lock); mutex_destroy(&msp->ms_lock); @@ -522,7 +761,6 @@ metaslab_fini(metaslab_t *msp) #define METASLAB_WEIGHT_SECONDARY (1ULL << 62) #define METASLAB_ACTIVE_MASK \ (METASLAB_WEIGHT_PRIMARY | METASLAB_WEIGHT_SECONDARY) -#define METASLAB_SMO_BONUS_MULTIPLIER 2 static uint64_t metaslab_weight(metaslab_t *msp) @@ -555,36 +793,88 @@ metaslab_weight(metaslab_t *msp) ASSERT(weight >= space && weight <= 2 * space); /* - * For locality, assign higher weight to metaslabs we've used before. + * For locality, assign higher weight to metaslabs which have + * a lower offset than what we've already activated. */ - if (smo->smo_object != 0) - weight *= METASLAB_SMO_BONUS_MULTIPLIER; + if (sm->sm_start <= mg->mg_bonus_area) + weight *= (metaslab_smo_bonus_pct / 100); ASSERT(weight >= space && - weight <= 2 * METASLAB_SMO_BONUS_MULTIPLIER * space); + weight <= 2 * (metaslab_smo_bonus_pct / 100) * space); + + if (sm->sm_loaded && !sm->sm_ops->smop_fragmented(sm)) { + /* + * If this metaslab is one we're actively using, adjust its + * weight to make it preferable to any inactive metaslab so + * we'll polish it off. + */ + weight |= (msp->ms_weight & METASLAB_ACTIVE_MASK); + } + return (weight); +} + +static void +metaslab_prefetch(metaslab_group_t *mg) +{ + spa_t *spa = mg->mg_vd->vdev_spa; + metaslab_t *msp; + avl_tree_t *t = &mg->mg_metaslab_tree; + int m; + + mutex_enter(&mg->mg_lock); /* - * If this metaslab is one we're actively using, adjust its weight to - * make it preferable to any inactive metaslab so we'll polish it off. + * Prefetch the next potential metaslabs */ - weight |= (msp->ms_weight & METASLAB_ACTIVE_MASK); + for (msp = avl_first(t), m = 0; msp; msp = AVL_NEXT(t, msp), m++) { + space_map_t *sm = &msp->ms_map; + space_map_obj_t *smo = &msp->ms_smo; - return (weight); + /* If we have reached our prefetch limit then we're done */ + if (m >= metaslab_prefetch_limit) + break; + + if (!sm->sm_loaded && smo->smo_object != 0) { + mutex_exit(&mg->mg_lock); + dmu_prefetch(spa_meta_objset(spa), smo->smo_object, + 0ULL, smo->smo_objsize); + mutex_enter(&mg->mg_lock); + } + } + mutex_exit(&mg->mg_lock); } static int metaslab_activate(metaslab_t *msp, uint64_t activation_weight, uint64_t size) { + metaslab_group_t *mg = msp->ms_group; space_map_t *sm = &msp->ms_map; space_map_ops_t *sm_ops = msp->ms_group->mg_class->mc_ops; ASSERT(MUTEX_HELD(&msp->ms_lock)); if ((msp->ms_weight & METASLAB_ACTIVE_MASK) == 0) { - int error = space_map_load(sm, sm_ops, SM_FREE, &msp->ms_smo, - msp->ms_group->mg_vd->vdev_spa->spa_meta_objset); - if (error) { - metaslab_group_sort(msp->ms_group, msp, 0); - return (error); + space_map_load_wait(sm); + if (!sm->sm_loaded) { + int error = space_map_load(sm, sm_ops, SM_FREE, + &msp->ms_smo, + spa_meta_objset(msp->ms_group->mg_vd->vdev_spa)); + if (error) { + metaslab_group_sort(msp->ms_group, msp, 0); + return (error); + } + for (int t = 0; t < TXG_DEFER_SIZE; t++) + space_map_walk(&msp->ms_defermap[t], + space_map_claim, sm); + + } + + /* + * Track the bonus area as we activate new metaslabs. + */ + if (sm->sm_start > mg->mg_bonus_area) { + mutex_enter(&mg->mg_lock); + mg->mg_bonus_area = sm->sm_start; + mutex_exit(&mg->mg_lock); } /* @@ -624,7 +914,7 @@ metaslab_sync(metaslab_t *msp, uint64_t txg) { vdev_t *vd = msp->ms_group->mg_vd; spa_t *spa = vd->vdev_spa; - objset_t *mos = spa->spa_meta_objset; + objset_t *mos = spa_meta_objset(spa); space_map_t *allocmap = &msp->ms_allocmap[txg & TXG_MASK]; space_map_t *freemap = &msp->ms_freemap[txg & TXG_MASK]; space_map_t *freed_map = &msp->ms_freemap[TXG_CLEAN(txg) & TXG_MASK]; @@ -632,9 +922,11 @@ metaslab_sync(metaslab_t *msp, uint64_t txg) space_map_obj_t *smo = &msp->ms_smo_syncing; dmu_buf_t *db; dmu_tx_t *tx; - int t; - tx = dmu_tx_create_assigned(spa_get_dsl(spa), txg); + ASSERT(!vd->vdev_ishole); + + if (allocmap->sm_space == 0 && freemap->sm_space == 0) + return; /* * The only state that can actually be changing concurrently with @@ -644,12 +936,12 @@ metaslab_sync(metaslab_t *msp, uint64_t txg) * We drop it whenever we call into the DMU, because the DMU * can call down to us (e.g. via zio_free()) at any time. */ - mutex_enter(&msp->ms_lock); + + tx = dmu_tx_create_assigned(spa_get_dsl(spa), txg); if (smo->smo_object == 0) { ASSERT(smo->smo_objsize == 0); ASSERT(smo->smo_alloc == 0); - mutex_exit(&msp->ms_lock); smo->smo_object = dmu_object_alloc(mos, DMU_OT_SPACE_MAP, 1 << SPACE_MAP_BLOCKSHIFT, DMU_OT_SPACE_MAP_HEADER, sizeof (*smo), tx); @@ -657,9 +949,10 @@ metaslab_sync(metaslab_t *msp, uint64_t txg) dmu_write(mos, vd->vdev_ms_array, sizeof (uint64_t) * (sm->sm_start >> vd->vdev_ms_shift), sizeof (uint64_t), &smo->smo_object, tx); - mutex_enter(&msp->ms_lock); } + mutex_enter(&msp->ms_lock); + space_map_walk(freemap, space_map_add, freed_map); if (sm->sm_loaded && spa_sync_pass(spa) == 1 && smo->smo_objsize >= @@ -672,6 +965,7 @@ metaslab_sync(metaslab_t *msp, uint64_t txg) * This metaslab is 100% allocated, * minus the content of the in-core map (sm), * minus what's been freed this txg (freed_map), + * minus deferred frees (ms_defermap[]), * minus allocations from txgs in the future * (because they haven't been committed yet). */ @@ -683,7 +977,11 @@ metaslab_sync(metaslab_t *msp, uint64_t txg) space_map_walk(sm, space_map_remove, allocmap); space_map_walk(freed_map, space_map_remove, allocmap); - for (t = 1; t < TXG_CONCURRENT_STATES; t++) + for (int t = 0; t < TXG_DEFER_SIZE; t++) + space_map_walk(&msp->ms_defermap[t], + space_map_remove, allocmap); + + for (int t = 1; t < TXG_CONCURRENT_STATES; t++) space_map_walk(&msp->ms_allocmap[(txg + t) & TXG_MASK], space_map_remove, allocmap); @@ -717,9 +1015,12 @@ metaslab_sync_done(metaslab_t *msp, uint64_t txg) space_map_obj_t *smosync = &msp->ms_smo_syncing; space_map_t *sm = &msp->ms_map; space_map_t *freed_map = &msp->ms_freemap[TXG_CLEAN(txg) & TXG_MASK]; + space_map_t *defer_map = &msp->ms_defermap[txg % TXG_DEFER_SIZE]; metaslab_group_t *mg = msp->ms_group; vdev_t *vd = mg->mg_vd; - int t; + int64_t alloc_delta, defer_delta; + + ASSERT(!vd->vdev_ishole); mutex_enter(&msp->ms_lock); @@ -728,16 +1029,24 @@ metaslab_sync_done(metaslab_t *msp, uint64_t txg) * allocmaps and freemaps and add its capacity to the vdev. */ if (freed_map->sm_size == 0) { - for (t = 0; t < TXG_SIZE; t++) { + for (int t = 0; t < TXG_SIZE; t++) { space_map_create(&msp->ms_allocmap[t], sm->sm_start, sm->sm_size, sm->sm_shift, sm->sm_lock); space_map_create(&msp->ms_freemap[t], sm->sm_start, sm->sm_size, sm->sm_shift, sm->sm_lock); } - vdev_space_update(vd, sm->sm_size, 0, B_TRUE); + + for (int t = 0; t < TXG_DEFER_SIZE; t++) + space_map_create(&msp->ms_defermap[t], sm->sm_start, + sm->sm_size, sm->sm_shift, sm->sm_lock); + + vdev_space_update(vd, 0, 0, sm->sm_size); } - vdev_space_update(vd, 0, smosync->smo_alloc - smo->smo_alloc, B_TRUE); + alloc_delta = smosync->smo_alloc - smo->smo_alloc; + defer_delta = freed_map->sm_space - defer_map->sm_space; + + vdev_space_update(vd, alloc_delta + defer_delta, defer_delta, 0); ASSERT(msp->ms_allocmap[txg & TXG_MASK].sm_space == 0); ASSERT(msp->ms_freemap[txg & TXG_MASK].sm_space == 0); @@ -745,13 +1054,26 @@ metaslab_sync_done(metaslab_t *msp, uint64_t txg) /* * If there's a space_map_load() in progress, wait for it to complete * so that we have a consistent view of the in-core space map. - * Then, add everything we freed in this txg to the map. + * Then, add defer_map (oldest deferred frees) to this map and + * transfer freed_map (this txg's frees) to defer_map. */ space_map_load_wait(sm); - space_map_vacate(freed_map, sm->sm_loaded ? space_map_free : NULL, sm); + space_map_vacate(defer_map, sm->sm_loaded ? space_map_free : NULL, sm); + space_map_vacate(freed_map, space_map_add, defer_map); *smo = *smosync; + msp->ms_deferspace += defer_delta; + ASSERT3S(msp->ms_deferspace, >=, 0); + ASSERT3S(msp->ms_deferspace, <=, sm->sm_size); + if (msp->ms_deferspace != 0) { + /* + * Keep syncing this metaslab until all deferred frees + * are back in circulation. + */ + vdev_dirty(vd, VDD_METASLAB, msp, txg + 1); + } + /* * If the map is loaded but no longer active, evict it as soon as all * future allocations have synced. (If we unloaded it now and then @@ -760,11 +1082,11 @@ metaslab_sync_done(metaslab_t *msp, uint64_t txg) if (sm->sm_loaded && (msp->ms_weight & METASLAB_ACTIVE_MASK) == 0) { int evictable = 1; - for (t = 1; t < TXG_CONCURRENT_STATES; t++) + for (int t = 1; t < TXG_CONCURRENT_STATES; t++) if (msp->ms_allocmap[(txg + t) & TXG_MASK].sm_space) evictable = 0; - if (evictable) + if (evictable && !metaslab_debug) space_map_unload(sm); } @@ -773,6 +1095,32 @@ metaslab_sync_done(metaslab_t *msp, uint64_t txg) mutex_exit(&msp->ms_lock); } +void +metaslab_sync_reassess(metaslab_group_t *mg) +{ + vdev_t *vd = mg->mg_vd; + + /* + * Re-evaluate all metaslabs which have lower offsets than the + * bonus area. + */ + for (int m = 0; m < vd->vdev_ms_count; m++) { + metaslab_t *msp = vd->vdev_ms[m]; + + if (msp->ms_map.sm_start > mg->mg_bonus_area) + break; + + mutex_enter(&msp->ms_lock); + metaslab_group_sort(mg, msp, metaslab_weight(msp)); + mutex_exit(&msp->ms_lock); + } + + /* + * Prefetch the next potential metaslabs + */ + metaslab_prefetch(mg); +} + static uint64_t metaslab_distance(metaslab_t *msp, dva_t *dva) { @@ -868,7 +1216,7 @@ metaslab_group_alloc(metaslab_group_t *mg, uint64_t size, uint64_t txg, if ((offset = space_map_alloc(&msp->ms_map, size)) != -1ULL) break; - metaslab_passivate(msp, size - 1); + metaslab_passivate(msp, space_map_maxsize(&msp->ms_map)); mutex_exit(&msp->ms_lock); } @@ -905,12 +1253,12 @@ metaslab_alloc_dva(spa_t *spa, metaslab_class_t *mc, uint64_t psize, /* * For testing, make some blocks above a certain size be gang blocks. */ - if (psize >= metaslab_gang_bang && (lbolt & 3) == 0) + if (psize >= metaslab_gang_bang && (ddi_get_lbolt() & 3) == 0) return (ENOSPC); /* * Start at the rotor and loop through all mgs until we find something. - * Note that there's no locking on mc_rotor or mc_allocated because + * Note that there's no locking on mc_rotor or mc_aliquot because * nothing actually breaks if we miss a few updates -- we just won't * allocate quite as evenly. It all balances out over time. * @@ -932,10 +1280,21 @@ metaslab_alloc_dva(spa_t *spa, metaslab_class_t *mc, uint64_t psize, */ if (hintdva) { vd = vdev_lookup_top(spa, DVA_GET_VDEV(&hintdva[d])); - if (flags & METASLAB_HINTBP_AVOID) - mg = vd->vdev_mg->mg_next; - else + + /* + * It's possible the vdev we're using as the hint no + * longer exists (i.e. removed). Consult the rotor when + * all else fails. + */ + if (vd != NULL) { mg = vd->vdev_mg; + + if (flags & METASLAB_HINTBP_AVOID && + mg->mg_next != NULL) + mg = mg->mg_next; + } else { + mg = mc->mc_rotor; + } } else if (d != 0) { vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[d - 1])); mg = vd->vdev_mg->mg_next; @@ -944,15 +1303,18 @@ metaslab_alloc_dva(spa_t *spa, metaslab_class_t *mc, uint64_t psize, } /* - * If the hint put us into the wrong class, just follow the rotor. + * If the hint put us into the wrong metaslab class, or into a + * metaslab group that has been passivated, just follow the rotor. */ - if (mg->mg_class != mc) + if (mg->mg_class != mc || mg->mg_activation_count <= 0) mg = mc->mc_rotor; rotor = mg; top: all_zero = B_TRUE; do { + ASSERT(mg->mg_activation_count == 1); + vd = mg->mg_vd; /* @@ -997,32 +1359,28 @@ top: * over- or under-used relative to the pool, * and set an allocation bias to even it out. */ - if (mc->mc_allocated == 0) { + if (mc->mc_aliquot == 0) { vdev_stat_t *vs = &vd->vdev_stat; - uint64_t alloc, space; - int64_t vu, su; - - alloc = spa_get_alloc(spa); - space = spa_get_space(spa); + int64_t vu, cu; /* * Determine percent used in units of 0..1024. * (This is just to avoid floating point.) */ vu = (vs->vs_alloc << 10) / (vs->vs_space + 1); - su = (alloc << 10) / (space + 1); + cu = (mc->mc_alloc << 10) / (mc->mc_space + 1); /* * Bias by at most +/- 25% of the aliquot. */ - mg->mg_bias = ((su - vu) * + mg->mg_bias = ((cu - vu) * (int64_t)mg->mg_aliquot) / (1024 * 4); } - if (atomic_add_64_nv(&mc->mc_allocated, asize) >= + if (atomic_add_64_nv(&mc->mc_aliquot, asize) >= mg->mg_aliquot + mg->mg_bias) { mc->mc_rotor = mg->mg_next; - mc->mc_allocated = 0; + mc->mc_aliquot = 0; } DVA_SET_VDEV(&dva[d], vd->vdev_id); @@ -1034,7 +1392,7 @@ top: } next: mc->mc_rotor = mg->mg_next; - mc->mc_allocated = 0; + mc->mc_aliquot = 0; } while ((mg = mg->mg_next) != rotor); if (!all_zero) { @@ -1114,7 +1472,7 @@ metaslab_claim_dva(spa_t *spa, const dva_t *dva, uint64_t txg) uint64_t size = DVA_GET_ASIZE(dva); vdev_t *vd; metaslab_t *msp; - int error; + int error = 0; ASSERT(DVA_IS_VALID(dva)); @@ -1129,7 +1487,12 @@ metaslab_claim_dva(spa_t *spa, const dva_t *dva, uint64_t txg) mutex_enter(&msp->ms_lock); - error = metaslab_activate(msp, METASLAB_WEIGHT_SECONDARY, 0); + if ((txg != 0 && spa_writeable(spa)) || !msp->ms_map.sm_loaded) + error = metaslab_activate(msp, METASLAB_WEIGHT_SECONDARY, 0); + + if (error == 0 && !space_map_contains(&msp->ms_map, offset, size)) + error = ENOENT; + if (error || txg == 0) { /* txg == 0 indicates dry run */ mutex_exit(&msp->ms_lock); return (error); @@ -1157,6 +1520,7 @@ metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize, blkptr_t *bp, int error = 0; ASSERT(bp->blk_birth == 0); + ASSERT(BP_PHYSICAL_BIRTH(bp) == 0); spa_config_enter(spa, SCL_ALLOC, FTAG, RW_READER); @@ -1186,7 +1550,7 @@ metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize, blkptr_t *bp, spa_config_exit(spa, SCL_ALLOC, FTAG); - bp->blk_birth = txg; + BP_SET_BIRTH(bp, txg, txg); return (0); } @@ -1198,7 +1562,7 @@ metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg, boolean_t now) int ndvas = BP_GET_NDVAS(bp); ASSERT(!BP_IS_HOLE(bp)); - ASSERT(!now || bp->blk_birth >= spa->spa_syncing_txg); + ASSERT(!now || bp->blk_birth >= spa_syncing_txg(spa)); spa_config_enter(spa, SCL_FREE, FTAG, RW_READER); diff --git a/module/zfs/refcount.c b/module/zfs/refcount.c index f1b3b23fe..8358b4cee 100644 --- a/module/zfs/refcount.c +++ b/module/zfs/refcount.c @@ -19,12 +19,9 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #include <sys/refcount.h> diff --git a/module/zfs/sa.c b/module/zfs/sa.c new file mode 100644 index 000000000..a91b379f9 --- /dev/null +++ b/module/zfs/sa.c @@ -0,0 +1,1886 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/zfs_context.h> +#include <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/sysmacros.h> +#include <sys/dmu.h> +#include <sys/dmu_impl.h> +#include <sys/dmu_objset.h> +#include <sys/dbuf.h> +#include <sys/dnode.h> +#include <sys/zap.h> +#include <sys/sa.h> +#include <sys/sunddi.h> +#include <sys/sa_impl.h> +#include <sys/dnode.h> +#include <sys/errno.h> +#include <sys/zfs_context.h> + +/* + * ZFS System attributes: + * + * A generic mechanism to allow for arbitrary attributes + * to be stored in a dnode. The data will be stored in the bonus buffer of + * the dnode and if necessary a special "spill" block will be used to handle + * overflow situations. The spill block will be sized to fit the data + * from 512 - 128K. When a spill block is used the BP (blkptr_t) for the + * spill block is stored at the end of the current bonus buffer. Any + * attributes that would be in the way of the blkptr_t will be relocated + * into the spill block. + * + * Attribute registration: + * + * Stored persistently on a per dataset basis + * a mapping between attribute "string" names and their actual attribute + * numeric values, length, and byteswap function. The names are only used + * during registration. All attributes are known by their unique attribute + * id value. If an attribute can have a variable size then the value + * 0 will be used to indicate this. + * + * Attribute Layout: + * + * Attribute layouts are a way to compactly store multiple attributes, but + * without taking the overhead associated with managing each attribute + * individually. Since you will typically have the same set of attributes + * stored in the same order a single table will be used to represent that + * layout. The ZPL for example will usually have only about 10 different + * layouts (regular files, device files, symlinks, + * regular files + scanstamp, files/dir with extended attributes, and then + * you have the possibility of all of those minus ACL, because it would + * be kicked out into the spill block) + * + * Layouts are simply an array of the attributes and their + * ordering i.e. [0, 1, 4, 5, 2] + * + * Each distinct layout is given a unique layout number and that is whats + * stored in the header at the beginning of the SA data buffer. + * + * A layout only covers a single dbuf (bonus or spill). If a set of + * attributes is split up between the bonus buffer and a spill buffer then + * two different layouts will be used. This allows us to byteswap the + * spill without looking at the bonus buffer and keeps the on disk format of + * the bonus and spill buffer the same. + * + * Adding a single attribute will cause the entire set of attributes to + * be rewritten and could result in a new layout number being constructed + * as part of the rewrite if no such layout exists for the new set of + * attribues. The new attribute will be appended to the end of the already + * existing attributes. + * + * Both the attribute registration and attribute layout information are + * stored in normal ZAP attributes. Their should be a small number of + * known layouts and the set of attributes is assumed to typically be quite + * small. + * + * The registered attributes and layout "table" information is maintained + * in core and a special "sa_os_t" is attached to the objset_t. + * + * A special interface is provided to allow for quickly applying + * a large set of attributes at once. sa_replace_all_by_template() is + * used to set an array of attributes. This is used by the ZPL when + * creating a brand new file. The template that is passed into the function + * specifies the attribute, size for variable length attributes, location of + * data and special "data locator" function if the data isn't in a contiguous + * location. + * + * Byteswap implications: + * Since the SA attributes are not entirely self describing we can't do + * the normal byteswap processing. The special ZAP layout attribute and + * attribute registration attributes define the byteswap function and the + * size of the attributes, unless it is variable sized. + * The normal ZFS byteswapping infrastructure assumes you don't need + * to read any objects in order to do the necessary byteswapping. Whereas + * SA attributes can only be properly byteswapped if the dataset is opened + * and the layout/attribute ZAP attributes are available. Because of this + * the SA attributes will be byteswapped when they are first accessed by + * the SA code that will read the SA data. + */ + +typedef void (sa_iterfunc_t)(void *hdr, void *addr, sa_attr_type_t, + uint16_t length, int length_idx, boolean_t, void *userp); + +static int sa_build_index(sa_handle_t *hdl, sa_buf_type_t buftype); +static void sa_idx_tab_hold(objset_t *os, sa_idx_tab_t *idx_tab); +static void *sa_find_idx_tab(objset_t *os, dmu_object_type_t bonustype, + void *data); +static void sa_idx_tab_rele(objset_t *os, void *arg); +static void sa_copy_data(sa_data_locator_t *func, void *start, void *target, + int buflen); +static int sa_modify_attrs(sa_handle_t *hdl, sa_attr_type_t newattr, + sa_data_op_t action, sa_data_locator_t *locator, void *datastart, + uint16_t buflen, dmu_tx_t *tx); + +arc_byteswap_func_t *sa_bswap_table[] = { + byteswap_uint64_array, + byteswap_uint32_array, + byteswap_uint16_array, + byteswap_uint8_array, + zfs_acl_byteswap, +}; + +#define SA_COPY_DATA(f, s, t, l) \ + { \ + if (f == NULL) { \ + if (l == 8) { \ + *(uint64_t *)t = *(uint64_t *)s; \ + } else if (l == 16) { \ + *(uint64_t *)t = *(uint64_t *)s; \ + *(uint64_t *)((uintptr_t)t + 8) = \ + *(uint64_t *)((uintptr_t)s + 8); \ + } else { \ + bcopy(s, t, l); \ + } \ + } else \ + sa_copy_data(f, s, t, l); \ + } + +/* + * This table is fixed and cannot be changed. Its purpose is to + * allow the SA code to work with both old/new ZPL file systems. + * It contains the list of legacy attributes. These attributes aren't + * stored in the "attribute" registry zap objects, since older ZPL file systems + * won't have the registry. Only objsets of type ZFS_TYPE_FILESYSTEM will + * use this static table. + */ +sa_attr_reg_t sa_legacy_attrs[] = { + {"ZPL_ATIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 0}, + {"ZPL_MTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 1}, + {"ZPL_CTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 2}, + {"ZPL_CRTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 3}, + {"ZPL_GEN", sizeof (uint64_t), SA_UINT64_ARRAY, 4}, + {"ZPL_MODE", sizeof (uint64_t), SA_UINT64_ARRAY, 5}, + {"ZPL_SIZE", sizeof (uint64_t), SA_UINT64_ARRAY, 6}, + {"ZPL_PARENT", sizeof (uint64_t), SA_UINT64_ARRAY, 7}, + {"ZPL_LINKS", sizeof (uint64_t), SA_UINT64_ARRAY, 8}, + {"ZPL_XATTR", sizeof (uint64_t), SA_UINT64_ARRAY, 9}, + {"ZPL_RDEV", sizeof (uint64_t), SA_UINT64_ARRAY, 10}, + {"ZPL_FLAGS", sizeof (uint64_t), SA_UINT64_ARRAY, 11}, + {"ZPL_UID", sizeof (uint64_t), SA_UINT64_ARRAY, 12}, + {"ZPL_GID", sizeof (uint64_t), SA_UINT64_ARRAY, 13}, + {"ZPL_PAD", sizeof (uint64_t) * 4, SA_UINT64_ARRAY, 14}, + {"ZPL_ZNODE_ACL", 88, SA_UINT8_ARRAY, 15}, +}; + +/* + * ZPL legacy layout + * This is only used for objects of type DMU_OT_ZNODE + */ +sa_attr_type_t sa_legacy_zpl_layout[] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 +}; + +/* + * Special dummy layout used for buffers with no attributes. + */ + +sa_attr_type_t sa_dummy_zpl_layout[] = { 0 }; + +static int sa_legacy_attr_count = 16; +static kmem_cache_t *sa_cache = NULL; + +/*ARGSUSED*/ +static int +sa_cache_constructor(void *buf, void *unused, int kmflag) +{ + sa_handle_t *hdl = buf; + + hdl->sa_bonus_tab = NULL; + hdl->sa_spill_tab = NULL; + hdl->sa_os = NULL; + hdl->sa_userp = NULL; + hdl->sa_bonus = NULL; + hdl->sa_spill = NULL; + mutex_init(&hdl->sa_lock, NULL, MUTEX_DEFAULT, NULL); + return (0); +} + +/*ARGSUSED*/ +static void +sa_cache_destructor(void *buf, void *unused) +{ + sa_handle_t *hdl = buf; + mutex_destroy(&hdl->sa_lock); +} + +void +sa_cache_init(void) +{ + sa_cache = kmem_cache_create("sa_cache", + sizeof (sa_handle_t), 0, sa_cache_constructor, + sa_cache_destructor, NULL, NULL, NULL, 0); +} + +void +sa_cache_fini(void) +{ + if (sa_cache) + kmem_cache_destroy(sa_cache); +} + +static int +layout_num_compare(const void *arg1, const void *arg2) +{ + const sa_lot_t *node1 = arg1; + const sa_lot_t *node2 = arg2; + + if (node1->lot_num > node2->lot_num) + return (1); + else if (node1->lot_num < node2->lot_num) + return (-1); + return (0); +} + +static int +layout_hash_compare(const void *arg1, const void *arg2) +{ + const sa_lot_t *node1 = arg1; + const sa_lot_t *node2 = arg2; + + if (node1->lot_hash > node2->lot_hash) + return (1); + if (node1->lot_hash < node2->lot_hash) + return (-1); + if (node1->lot_instance > node2->lot_instance) + return (1); + if (node1->lot_instance < node2->lot_instance) + return (-1); + return (0); +} + +boolean_t +sa_layout_equal(sa_lot_t *tbf, sa_attr_type_t *attrs, int count) +{ + int i; + + if (count != tbf->lot_attr_count) + return (1); + + for (i = 0; i != count; i++) { + if (attrs[i] != tbf->lot_attrs[i]) + return (1); + } + return (0); +} + +#define SA_ATTR_HASH(attr) (zfs_crc64_table[(-1ULL ^ attr) & 0xFF]) + +static uint64_t +sa_layout_info_hash(sa_attr_type_t *attrs, int attr_count) +{ + int i; + uint64_t crc = -1ULL; + + for (i = 0; i != attr_count; i++) + crc ^= SA_ATTR_HASH(attrs[i]); + + return (crc); +} + +static boolean_t +sa_has_blkptr(sa_handle_t *hdl) +{ + int rc; + if (hdl->sa_spill == NULL) { + if ((rc = dmu_spill_hold_existing(hdl->sa_bonus, NULL, + &hdl->sa_spill)) == 0) + VERIFY(0 == sa_build_index(hdl, SA_SPILL)); + } else { + rc = 0; + } + + return (rc == 0 ? B_TRUE : B_FALSE); +} + +/* + * Main attribute lookup/update function + * returns 0 for success or non zero for failures + * + * Operates on bulk array, first failure will abort further processing + */ +int +sa_attr_op(sa_handle_t *hdl, sa_bulk_attr_t *bulk, int count, + sa_data_op_t data_op, dmu_tx_t *tx) +{ + sa_os_t *sa = hdl->sa_os->os_sa; + int i; + int error = 0; + sa_buf_type_t buftypes; + + buftypes = 0; + + ASSERT(count > 0); + for (i = 0; i != count; i++) { + ASSERT(bulk[i].sa_attr <= hdl->sa_os->os_sa->sa_num_attrs); + + bulk[i].sa_addr = NULL; + /* First check the bonus buffer */ + + if (hdl->sa_bonus_tab && TOC_ATTR_PRESENT( + hdl->sa_bonus_tab->sa_idx_tab[bulk[i].sa_attr])) { + SA_ATTR_INFO(sa, hdl->sa_bonus_tab, + SA_GET_HDR(hdl, SA_BONUS), + bulk[i].sa_attr, bulk[i], SA_BONUS, hdl); + if (tx && !(buftypes & SA_BONUS)) { + dmu_buf_will_dirty(hdl->sa_bonus, tx); + buftypes |= SA_BONUS; + } + } + if (bulk[i].sa_addr == NULL && sa_has_blkptr(hdl)) { + if (TOC_ATTR_PRESENT( + hdl->sa_spill_tab->sa_idx_tab[bulk[i].sa_attr])) { + SA_ATTR_INFO(sa, hdl->sa_spill_tab, + SA_GET_HDR(hdl, SA_SPILL), + bulk[i].sa_attr, bulk[i], SA_SPILL, hdl); + if (tx && !(buftypes & SA_SPILL) && + bulk[i].sa_size == bulk[i].sa_length) { + dmu_buf_will_dirty(hdl->sa_spill, tx); + buftypes |= SA_SPILL; + } + } + } + switch (data_op) { + case SA_LOOKUP: + if (bulk[i].sa_addr == NULL) + return (ENOENT); + if (bulk[i].sa_data) { + SA_COPY_DATA(bulk[i].sa_data_func, + bulk[i].sa_addr, bulk[i].sa_data, + bulk[i].sa_size); + } + continue; + + case SA_UPDATE: + /* existing rewrite of attr */ + if (bulk[i].sa_addr && + bulk[i].sa_size == bulk[i].sa_length) { + SA_COPY_DATA(bulk[i].sa_data_func, + bulk[i].sa_data, bulk[i].sa_addr, + bulk[i].sa_length); + continue; + } else if (bulk[i].sa_addr) { /* attr size change */ + error = sa_modify_attrs(hdl, bulk[i].sa_attr, + SA_REPLACE, bulk[i].sa_data_func, + bulk[i].sa_data, bulk[i].sa_length, tx); + } else { /* adding new attribute */ + error = sa_modify_attrs(hdl, bulk[i].sa_attr, + SA_ADD, bulk[i].sa_data_func, + bulk[i].sa_data, bulk[i].sa_length, tx); + } + if (error) + return (error); + break; + } + } + return (error); +} + +static sa_lot_t * +sa_add_layout_entry(objset_t *os, sa_attr_type_t *attrs, int attr_count, + uint64_t lot_num, uint64_t hash, boolean_t zapadd, dmu_tx_t *tx) +{ + sa_os_t *sa = os->os_sa; + sa_lot_t *tb, *findtb; + int i; + avl_index_t loc; + + ASSERT(MUTEX_HELD(&sa->sa_lock)); + tb = kmem_zalloc(sizeof (sa_lot_t), KM_SLEEP); + tb->lot_attr_count = attr_count; + tb->lot_attrs = kmem_alloc(sizeof (sa_attr_type_t) * attr_count, + KM_SLEEP); + bcopy(attrs, tb->lot_attrs, sizeof (sa_attr_type_t) * attr_count); + tb->lot_num = lot_num; + tb->lot_hash = hash; + tb->lot_instance = 0; + + if (zapadd) { + char attr_name[8]; + + if (sa->sa_layout_attr_obj == 0) { + int error; + sa->sa_layout_attr_obj = zap_create(os, + DMU_OT_SA_ATTR_LAYOUTS, DMU_OT_NONE, 0, tx); + error = zap_add(os, sa->sa_master_obj, SA_LAYOUTS, 8, 1, + &sa->sa_layout_attr_obj, tx); + ASSERT3U(error, ==, 0); + } + + (void) snprintf(attr_name, sizeof (attr_name), + "%d", (int)lot_num); + VERIFY(0 == zap_update(os, os->os_sa->sa_layout_attr_obj, + attr_name, 2, attr_count, attrs, tx)); + } + + list_create(&tb->lot_idx_tab, sizeof (sa_idx_tab_t), + offsetof(sa_idx_tab_t, sa_next)); + + for (i = 0; i != attr_count; i++) { + if (sa->sa_attr_table[tb->lot_attrs[i]].sa_length == 0) + tb->lot_var_sizes++; + } + + avl_add(&sa->sa_layout_num_tree, tb); + + /* verify we don't have a hash collision */ + if ((findtb = avl_find(&sa->sa_layout_hash_tree, tb, &loc)) != NULL) { + for (; findtb && findtb->lot_hash == hash; + findtb = AVL_NEXT(&sa->sa_layout_hash_tree, findtb)) { + if (findtb->lot_instance != tb->lot_instance) + break; + tb->lot_instance++; + } + } + avl_add(&sa->sa_layout_hash_tree, tb); + return (tb); +} + +static void +sa_find_layout(objset_t *os, uint64_t hash, sa_attr_type_t *attrs, + int count, dmu_tx_t *tx, sa_lot_t **lot) +{ + sa_lot_t *tb, tbsearch; + avl_index_t loc; + sa_os_t *sa = os->os_sa; + boolean_t found = B_FALSE; + + mutex_enter(&sa->sa_lock); + tbsearch.lot_hash = hash; + tbsearch.lot_instance = 0; + tb = avl_find(&sa->sa_layout_hash_tree, &tbsearch, &loc); + if (tb) { + for (; tb && tb->lot_hash == hash; + tb = AVL_NEXT(&sa->sa_layout_hash_tree, tb)) { + if (sa_layout_equal(tb, attrs, count) == 0) { + found = B_TRUE; + break; + } + } + } + if (!found) { + tb = sa_add_layout_entry(os, attrs, count, + avl_numnodes(&sa->sa_layout_num_tree), hash, B_TRUE, tx); + } + mutex_exit(&sa->sa_lock); + *lot = tb; +} + +static int +sa_resize_spill(sa_handle_t *hdl, uint32_t size, dmu_tx_t *tx) +{ + int error; + uint32_t blocksize; + + if (size == 0) { + blocksize = SPA_MINBLOCKSIZE; + } else if (size > SPA_MAXBLOCKSIZE) { + ASSERT(0); + return (EFBIG); + } else { + blocksize = P2ROUNDUP_TYPED(size, SPA_MINBLOCKSIZE, uint32_t); + } + + error = dbuf_spill_set_blksz(hdl->sa_spill, blocksize, tx); + ASSERT(error == 0); + return (error); +} + +static void +sa_copy_data(sa_data_locator_t *func, void *datastart, void *target, int buflen) +{ + if (func == NULL) { + bcopy(datastart, target, buflen); + } else { + boolean_t start; + int bytes; + void *dataptr; + void *saptr = target; + uint32_t length; + + start = B_TRUE; + bytes = 0; + while (bytes < buflen) { + func(&dataptr, &length, buflen, start, datastart); + bcopy(dataptr, saptr, length); + saptr = (void *)((caddr_t)saptr + length); + bytes += length; + start = B_FALSE; + } + } +} + +/* + * Determine several different sizes + * first the sa header size + * the number of bytes to be stored + * if spill would occur the index in the attribute array is returned + * + * the boolean will_spill will be set when spilling is necessary. It + * is only set when the buftype is SA_BONUS + */ +static int +sa_find_sizes(sa_os_t *sa, sa_bulk_attr_t *attr_desc, int attr_count, + dmu_buf_t *db, sa_buf_type_t buftype, int *index, int *total, + boolean_t *will_spill) +{ + int var_size = 0; + int i; + int full_space; + int hdrsize; + boolean_t done = B_FALSE; + + if (buftype == SA_BONUS && sa->sa_force_spill) { + *total = 0; + *index = 0; + *will_spill = B_TRUE; + return (0); + } + + *index = -1; + *total = 0; + + if (buftype == SA_BONUS) + *will_spill = B_FALSE; + + hdrsize = (SA_BONUSTYPE_FROM_DB(db) == DMU_OT_ZNODE) ? 0 : + sizeof (sa_hdr_phys_t); + + full_space = (buftype == SA_BONUS) ? DN_MAX_BONUSLEN : db->db_size; + + for (i = 0; i != attr_count; i++) { + boolean_t is_var_sz; + + *total += attr_desc[i].sa_length; + if (done) + goto next; + + is_var_sz = (SA_REGISTERED_LEN(sa, attr_desc[i].sa_attr) == 0); + if (is_var_sz) { + var_size++; + } + + if (is_var_sz && var_size > 1) { + if (P2ROUNDUP(hdrsize + sizeof (uint16_t), 8) + + *total < full_space) { + hdrsize += sizeof (uint16_t); + } else { + done = B_TRUE; + *index = i; + if (buftype == SA_BONUS) + *will_spill = B_TRUE; + continue; + } + } + + /* + * find index of where spill *could* occur. + * Then continue to count of remainder attribute + * space. The sum is used later for sizing bonus + * and spill buffer. + */ + if (buftype == SA_BONUS && *index == -1 && + P2ROUNDUP(*total + hdrsize, 8) > + (full_space - sizeof (blkptr_t))) { + *index = i; + done = B_TRUE; + } + +next: + if (P2ROUNDUP(*total + hdrsize, 8) > full_space && + buftype == SA_BONUS) + *will_spill = B_TRUE; + } + + hdrsize = P2ROUNDUP(hdrsize, 8); + return (hdrsize); +} + +#define BUF_SPACE_NEEDED(total, header) (total + header) + +/* + * Find layout that corresponds to ordering of attributes + * If not found a new layout number is created and added to + * persistent layout tables. + */ +static int +sa_build_layouts(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, int attr_count, + dmu_tx_t *tx) +{ + sa_os_t *sa = hdl->sa_os->os_sa; + uint64_t hash; + sa_buf_type_t buftype; + sa_hdr_phys_t *sahdr; + void *data_start; + int buf_space; + sa_attr_type_t *attrs, *attrs_start; + int i, lot_count; + int hdrsize, spillhdrsize; + int used; + dmu_object_type_t bonustype; + sa_lot_t *lot; + int len_idx; + int spill_used; + boolean_t spilling; + + dmu_buf_will_dirty(hdl->sa_bonus, tx); + bonustype = SA_BONUSTYPE_FROM_DB(hdl->sa_bonus); + + /* first determine bonus header size and sum of all attributes */ + hdrsize = sa_find_sizes(sa, attr_desc, attr_count, hdl->sa_bonus, + SA_BONUS, &i, &used, &spilling); + + if (used > SPA_MAXBLOCKSIZE) + return (EFBIG); + + VERIFY(0 == dmu_set_bonus(hdl->sa_bonus, spilling ? + MIN(DN_MAX_BONUSLEN - sizeof (blkptr_t), used + hdrsize) : + used + hdrsize, tx)); + + ASSERT((bonustype == DMU_OT_ZNODE && spilling == 0) || + bonustype == DMU_OT_SA); + + /* setup and size spill buffer when needed */ + if (spilling) { + boolean_t dummy; + + if (hdl->sa_spill == NULL) { + int error; + error = dmu_spill_hold_by_bonus(hdl->sa_bonus, NULL, + &hdl->sa_spill); + ASSERT3U(error, ==, 0); + } + dmu_buf_will_dirty(hdl->sa_spill, tx); + + spillhdrsize = sa_find_sizes(sa, &attr_desc[i], + attr_count - i, hdl->sa_spill, SA_SPILL, &i, + &spill_used, &dummy); + + if (spill_used > SPA_MAXBLOCKSIZE) + return (EFBIG); + + buf_space = hdl->sa_spill->db_size - spillhdrsize; + if (BUF_SPACE_NEEDED(spill_used, spillhdrsize) > + hdl->sa_spill->db_size) + VERIFY(0 == sa_resize_spill(hdl, + BUF_SPACE_NEEDED(spill_used, spillhdrsize), tx)); + } + + /* setup starting pointers to lay down data */ + data_start = (void *)((uintptr_t)hdl->sa_bonus->db_data + hdrsize); + sahdr = (sa_hdr_phys_t *)hdl->sa_bonus->db_data; + buftype = SA_BONUS; + + if (spilling) + buf_space = (sa->sa_force_spill) ? + 0 : SA_BLKPTR_SPACE - hdrsize; + else + buf_space = hdl->sa_bonus->db_size - hdrsize; + + attrs_start = attrs = kmem_alloc(sizeof (sa_attr_type_t) * attr_count, + KM_SLEEP); + lot_count = 0; + + for (i = 0, len_idx = 0, hash = -1ULL; i != attr_count; i++) { + uint16_t length; + + attrs[i] = attr_desc[i].sa_attr; + length = SA_REGISTERED_LEN(sa, attrs[i]); + if (length == 0) + length = attr_desc[i].sa_length; + + if (buf_space < length) { /* switch to spill buffer */ + ASSERT(bonustype != DMU_OT_ZNODE); + if (buftype == SA_BONUS && !sa->sa_force_spill) { + sa_find_layout(hdl->sa_os, hash, attrs_start, + lot_count, tx, &lot); + SA_SET_HDR(sahdr, lot->lot_num, hdrsize); + } + + buftype = SA_SPILL; + hash = -1ULL; + len_idx = 0; + + sahdr = (sa_hdr_phys_t *)hdl->sa_spill->db_data; + sahdr->sa_magic = SA_MAGIC; + data_start = (void *)((uintptr_t)sahdr + + spillhdrsize); + attrs_start = &attrs[i]; + buf_space = hdl->sa_spill->db_size - spillhdrsize; + lot_count = 0; + } + hash ^= SA_ATTR_HASH(attrs[i]); + attr_desc[i].sa_addr = data_start; + attr_desc[i].sa_size = length; + SA_COPY_DATA(attr_desc[i].sa_data_func, attr_desc[i].sa_data, + data_start, length); + if (sa->sa_attr_table[attrs[i]].sa_length == 0) { + sahdr->sa_lengths[len_idx++] = length; + } + data_start = (void *)P2ROUNDUP(((uintptr_t)data_start + + length), 8); + buf_space -= P2ROUNDUP(length, 8); + lot_count++; + } + + sa_find_layout(hdl->sa_os, hash, attrs_start, lot_count, tx, &lot); + if (bonustype == DMU_OT_SA) { + SA_SET_HDR(sahdr, lot->lot_num, + buftype == SA_BONUS ? hdrsize : spillhdrsize); + } + + kmem_free(attrs, sizeof (sa_attr_type_t) * attr_count); + if (hdl->sa_bonus_tab) { + sa_idx_tab_rele(hdl->sa_os, hdl->sa_bonus_tab); + hdl->sa_bonus_tab = NULL; + } + if (!sa->sa_force_spill) + VERIFY(0 == sa_build_index(hdl, SA_BONUS)); + if (hdl->sa_spill) { + sa_idx_tab_rele(hdl->sa_os, hdl->sa_spill_tab); + if (!spilling) { + /* + * remove spill block that is no longer needed. + * set sa_spill_remove to prevent sa_attr_op + * from trying to retrieve spill block before its + * been removed. The flag will be cleared if/when + * the handle is destroyed recreated or + * sa_build_layouts() needs to spill again. + */ + dmu_buf_rele(hdl->sa_spill, NULL); + hdl->sa_spill = NULL; + hdl->sa_spill_tab = NULL; + VERIFY(0 == dmu_rm_spill(hdl->sa_os, + sa_handle_object(hdl), tx)); + } else { + VERIFY(0 == sa_build_index(hdl, SA_SPILL)); + } + } + + return (0); +} + +static void +sa_attr_table_setup(objset_t *os, sa_attr_reg_t *reg_attrs, int count) +{ + sa_os_t *sa = os->os_sa; + uint64_t sa_attr_count = 0; + int error = 0; + uint64_t attr_value; + sa_attr_table_t *tb; + zap_cursor_t zc; + zap_attribute_t za; + int registered_count = 0; + int i; + dmu_objset_type_t ostype = dmu_objset_type(os); + + sa->sa_user_table = + kmem_zalloc(count * sizeof (sa_attr_type_t), KM_SLEEP); + sa->sa_user_table_sz = count * sizeof (sa_attr_type_t); + + if (sa->sa_reg_attr_obj != 0) + VERIFY(zap_count(os, sa->sa_reg_attr_obj, &sa_attr_count) == 0); + + if (ostype == DMU_OST_ZFS && sa_attr_count == 0) + sa_attr_count += sa_legacy_attr_count; + + /* Allocate attribute numbers for attributes that aren't registered */ + for (i = 0; i != count; i++) { + boolean_t found = B_FALSE; + int j; + + if (ostype == DMU_OST_ZFS) { + for (j = 0; j != sa_legacy_attr_count; j++) { + if (strcmp(reg_attrs[i].sa_name, + sa_legacy_attrs[j].sa_name) == 0) { + sa->sa_user_table[i] = + sa_legacy_attrs[j].sa_attr; + found = B_TRUE; + } + } + } + if (found) + continue; + + if (sa->sa_reg_attr_obj) + error = zap_lookup(os, sa->sa_reg_attr_obj, + reg_attrs[i].sa_name, 8, 1, &attr_value); + else + error = ENOENT; + switch (error) { + default: + case ENOENT: + sa->sa_user_table[i] = (sa_attr_type_t)sa_attr_count; + sa_attr_count++; + break; + case 0: + sa->sa_user_table[i] = ATTR_NUM(attr_value); + break; + } + } + + os->os_sa->sa_num_attrs = sa_attr_count; + tb = os->os_sa->sa_attr_table = + kmem_zalloc(sizeof (sa_attr_table_t) * sa_attr_count, KM_SLEEP); + + /* + * Attribute table is constructed from requested attribute list, + * previously foreign registered attributes, and also the legacy + * ZPL set of attributes. + */ + + if (sa->sa_reg_attr_obj) { + for (zap_cursor_init(&zc, os, sa->sa_reg_attr_obj); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) { + uint64_t value; + value = za.za_first_integer; + + registered_count++; + tb[ATTR_NUM(value)].sa_attr = ATTR_NUM(value); + tb[ATTR_NUM(value)].sa_length = ATTR_LENGTH(value); + tb[ATTR_NUM(value)].sa_byteswap = ATTR_BSWAP(value); + tb[ATTR_NUM(value)].sa_registered = B_TRUE; + + if (tb[ATTR_NUM(value)].sa_name) { + continue; + } + tb[ATTR_NUM(value)].sa_name = + kmem_zalloc(strlen(za.za_name) +1, KM_SLEEP); + (void) strlcpy(tb[ATTR_NUM(value)].sa_name, za.za_name, + strlen(za.za_name) +1); + } + zap_cursor_fini(&zc); + } + + if (ostype == DMU_OST_ZFS) { + for (i = 0; i != sa_legacy_attr_count; i++) { + if (tb[i].sa_name) + continue; + tb[i].sa_attr = sa_legacy_attrs[i].sa_attr; + tb[i].sa_length = sa_legacy_attrs[i].sa_length; + tb[i].sa_byteswap = sa_legacy_attrs[i].sa_byteswap; + tb[i].sa_registered = B_FALSE; + tb[i].sa_name = + kmem_zalloc(strlen(sa_legacy_attrs[i].sa_name) +1, + KM_SLEEP); + (void) strlcpy(tb[i].sa_name, + sa_legacy_attrs[i].sa_name, + strlen(sa_legacy_attrs[i].sa_name) + 1); + } + } + + for (i = 0; i != count; i++) { + sa_attr_type_t attr_id; + + attr_id = sa->sa_user_table[i]; + if (tb[attr_id].sa_name) + continue; + + tb[attr_id].sa_length = reg_attrs[i].sa_length; + tb[attr_id].sa_byteswap = reg_attrs[i].sa_byteswap; + tb[attr_id].sa_attr = attr_id; + tb[attr_id].sa_name = + kmem_zalloc(strlen(reg_attrs[i].sa_name) + 1, KM_SLEEP); + (void) strlcpy(tb[attr_id].sa_name, reg_attrs[i].sa_name, + strlen(reg_attrs[i].sa_name) + 1); + } + + os->os_sa->sa_need_attr_registration = + (sa_attr_count != registered_count); +} + +sa_attr_type_t * +sa_setup(objset_t *os, uint64_t sa_obj, sa_attr_reg_t *reg_attrs, int count) +{ + zap_cursor_t zc; + zap_attribute_t za; + sa_os_t *sa; + dmu_objset_type_t ostype = dmu_objset_type(os); + sa_attr_type_t *tb; + + mutex_enter(&os->os_lock); + if (os->os_sa) { + mutex_enter(&os->os_sa->sa_lock); + mutex_exit(&os->os_lock); + tb = os->os_sa->sa_user_table; + mutex_exit(&os->os_sa->sa_lock); + return (tb); + } + + sa = kmem_zalloc(sizeof (sa_os_t), KM_SLEEP); + mutex_init(&sa->sa_lock, NULL, MUTEX_DEFAULT, NULL); + sa->sa_master_obj = sa_obj; + + mutex_enter(&sa->sa_lock); + mutex_exit(&os->os_lock); + avl_create(&sa->sa_layout_num_tree, layout_num_compare, + sizeof (sa_lot_t), offsetof(sa_lot_t, lot_num_node)); + avl_create(&sa->sa_layout_hash_tree, layout_hash_compare, + sizeof (sa_lot_t), offsetof(sa_lot_t, lot_hash_node)); + + if (sa_obj) { + int error; + error = zap_lookup(os, sa_obj, SA_LAYOUTS, + 8, 1, &sa->sa_layout_attr_obj); + if (error != 0 && error != ENOENT) { + return (NULL); + } + error = zap_lookup(os, sa_obj, SA_REGISTRY, + 8, 1, &sa->sa_reg_attr_obj); + if (error != 0 && error != ENOENT) { + mutex_exit(&sa->sa_lock); + return (NULL); + } + } + + os->os_sa = sa; + sa_attr_table_setup(os, reg_attrs, count); + + if (sa->sa_layout_attr_obj != 0) { + for (zap_cursor_init(&zc, os, sa->sa_layout_attr_obj); + zap_cursor_retrieve(&zc, &za) == 0; + zap_cursor_advance(&zc)) { + sa_attr_type_t *lot_attrs; + uint64_t lot_num; + + lot_attrs = kmem_zalloc(sizeof (sa_attr_type_t) * + za.za_num_integers, KM_SLEEP); + + VERIFY(zap_lookup(os, sa->sa_layout_attr_obj, + za.za_name, 2, za.za_num_integers, lot_attrs) == 0); + VERIFY(ddi_strtoull(za.za_name, NULL, 10, + (unsigned long long *)&lot_num) == 0); + + (void) sa_add_layout_entry(os, lot_attrs, + za.za_num_integers, lot_num, + sa_layout_info_hash(lot_attrs, + za.za_num_integers), B_FALSE, NULL); + kmem_free(lot_attrs, sizeof (sa_attr_type_t) * + za.za_num_integers); + } + zap_cursor_fini(&zc); + } + + /* Add special layout number for old ZNODES */ + if (ostype == DMU_OST_ZFS) { + (void) sa_add_layout_entry(os, sa_legacy_zpl_layout, + sa_legacy_attr_count, 0, + sa_layout_info_hash(sa_legacy_zpl_layout, + sa_legacy_attr_count), B_FALSE, NULL); + + (void) sa_add_layout_entry(os, sa_dummy_zpl_layout, 0, 1, + 0, B_FALSE, NULL); + } + mutex_exit(&sa->sa_lock); + return (os->os_sa->sa_user_table); +} + +void +sa_tear_down(objset_t *os) +{ + sa_os_t *sa = os->os_sa; + sa_lot_t *layout; + void *cookie; + int i; + + kmem_free(sa->sa_user_table, sa->sa_user_table_sz); + + /* Free up attr table */ + + for (i = 0; i != sa->sa_num_attrs; i++) { + if (sa->sa_attr_table[i].sa_name) + kmem_free(sa->sa_attr_table[i].sa_name, + strlen(sa->sa_attr_table[i].sa_name) + 1); + } + + kmem_free(sa->sa_attr_table, + sizeof (sa_attr_table_t) * sa->sa_num_attrs); + + cookie = NULL; + while (layout = avl_destroy_nodes(&sa->sa_layout_hash_tree, &cookie)) { + sa_idx_tab_t *tab; + while (tab = list_head(&layout->lot_idx_tab)) { + ASSERT(refcount_count(&tab->sa_refcount)); + sa_idx_tab_rele(os, tab); + } + } + + cookie = NULL; + while (layout = avl_destroy_nodes(&sa->sa_layout_num_tree, &cookie)) { + kmem_free(layout->lot_attrs, + sizeof (sa_attr_type_t) * layout->lot_attr_count); + kmem_free(layout, sizeof (sa_lot_t)); + } + + avl_destroy(&sa->sa_layout_hash_tree); + avl_destroy(&sa->sa_layout_num_tree); + + kmem_free(sa, sizeof (sa_os_t)); + os->os_sa = NULL; +} + +void +sa_build_idx_tab(void *hdr, void *attr_addr, sa_attr_type_t attr, + uint16_t length, int length_idx, boolean_t var_length, void *userp) +{ + sa_idx_tab_t *idx_tab = userp; + + if (var_length) { + ASSERT(idx_tab->sa_variable_lengths); + idx_tab->sa_variable_lengths[length_idx] = length; + } + TOC_ATTR_ENCODE(idx_tab->sa_idx_tab[attr], length_idx, + (uint32_t)((uintptr_t)attr_addr - (uintptr_t)hdr)); +} + +static void +sa_attr_iter(objset_t *os, sa_hdr_phys_t *hdr, dmu_object_type_t type, + sa_iterfunc_t func, sa_lot_t *tab, void *userp) +{ + void *data_start; + sa_lot_t *tb = tab; + sa_lot_t search; + avl_index_t loc; + sa_os_t *sa = os->os_sa; + int i; + uint16_t *length_start = NULL; + uint8_t length_idx = 0; + + if (tab == NULL) { + search.lot_num = SA_LAYOUT_NUM(hdr, type); + tb = avl_find(&sa->sa_layout_num_tree, &search, &loc); + ASSERT(tb); + } + + if (IS_SA_BONUSTYPE(type)) { + data_start = (void *)P2ROUNDUP(((uintptr_t)hdr + + offsetof(sa_hdr_phys_t, sa_lengths) + + (sizeof (uint16_t) * tb->lot_var_sizes)), 8); + length_start = hdr->sa_lengths; + } else { + data_start = hdr; + } + + for (i = 0; i != tb->lot_attr_count; i++) { + int attr_length, reg_length; + uint8_t idx_len; + + reg_length = sa->sa_attr_table[tb->lot_attrs[i]].sa_length; + if (reg_length) { + attr_length = reg_length; + idx_len = 0; + } else { + attr_length = length_start[length_idx]; + idx_len = length_idx++; + } + + func(hdr, data_start, tb->lot_attrs[i], attr_length, + idx_len, reg_length == 0 ? B_TRUE : B_FALSE, userp); + + data_start = (void *)P2ROUNDUP(((uintptr_t)data_start + + attr_length), 8); + } +} + +/*ARGSUSED*/ +void +sa_byteswap_cb(void *hdr, void *attr_addr, sa_attr_type_t attr, + uint16_t length, int length_idx, boolean_t variable_length, void *userp) +{ + sa_handle_t *hdl = userp; + sa_os_t *sa = hdl->sa_os->os_sa; + + sa_bswap_table[sa->sa_attr_table[attr].sa_byteswap](attr_addr, length); +} + +void +sa_byteswap(sa_handle_t *hdl, sa_buf_type_t buftype) +{ + sa_hdr_phys_t *sa_hdr_phys = SA_GET_HDR(hdl, buftype); + dmu_buf_impl_t *db; + sa_os_t *sa = hdl->sa_os->os_sa; + int num_lengths = 1; + int i; + + ASSERT(MUTEX_HELD(&sa->sa_lock)); + if (sa_hdr_phys->sa_magic == SA_MAGIC) + return; + + db = SA_GET_DB(hdl, buftype); + + if (buftype == SA_SPILL) { + arc_release(db->db_buf, NULL); + arc_buf_thaw(db->db_buf); + } + + sa_hdr_phys->sa_magic = BSWAP_32(sa_hdr_phys->sa_magic); + sa_hdr_phys->sa_layout_info = BSWAP_16(sa_hdr_phys->sa_layout_info); + + /* + * Determine number of variable lenghts in header + * The standard 8 byte header has one for free and a + * 16 byte header would have 4 + 1; + */ + if (SA_HDR_SIZE(sa_hdr_phys) > 8) + num_lengths += (SA_HDR_SIZE(sa_hdr_phys) - 8) >> 1; + for (i = 0; i != num_lengths; i++) + sa_hdr_phys->sa_lengths[i] = + BSWAP_16(sa_hdr_phys->sa_lengths[i]); + + sa_attr_iter(hdl->sa_os, sa_hdr_phys, DMU_OT_SA, + sa_byteswap_cb, NULL, hdl); + + if (buftype == SA_SPILL) + arc_buf_freeze(((dmu_buf_impl_t *)hdl->sa_spill)->db_buf); +} + +static int +sa_build_index(sa_handle_t *hdl, sa_buf_type_t buftype) +{ + sa_hdr_phys_t *sa_hdr_phys; + dmu_buf_impl_t *db = SA_GET_DB(hdl, buftype); + dmu_object_type_t bonustype = SA_BONUSTYPE_FROM_DB(db); + sa_os_t *sa = hdl->sa_os->os_sa; + sa_idx_tab_t *idx_tab; + + sa_hdr_phys = SA_GET_HDR(hdl, buftype); + + mutex_enter(&sa->sa_lock); + + /* Do we need to byteswap? */ + + /* only check if not old znode */ + if (IS_SA_BONUSTYPE(bonustype) && sa_hdr_phys->sa_magic != SA_MAGIC && + sa_hdr_phys->sa_magic != 0) { + VERIFY(BSWAP_32(sa_hdr_phys->sa_magic) == SA_MAGIC); + sa_byteswap(hdl, buftype); + } + + idx_tab = sa_find_idx_tab(hdl->sa_os, bonustype, sa_hdr_phys); + + if (buftype == SA_BONUS) + hdl->sa_bonus_tab = idx_tab; + else + hdl->sa_spill_tab = idx_tab; + + mutex_exit(&sa->sa_lock); + return (0); +} + +/*ARGSUSED*/ +void +sa_evict(dmu_buf_t *db, void *sap) +{ + panic("evicting sa dbuf %p\n", (void *)db); +} + +static void +sa_idx_tab_rele(objset_t *os, void *arg) +{ + sa_os_t *sa = os->os_sa; + sa_idx_tab_t *idx_tab = arg; + + if (idx_tab == NULL) + return; + + mutex_enter(&sa->sa_lock); + if (refcount_remove(&idx_tab->sa_refcount, NULL) == 0) { + list_remove(&idx_tab->sa_layout->lot_idx_tab, idx_tab); + if (idx_tab->sa_variable_lengths) + kmem_free(idx_tab->sa_variable_lengths, + sizeof (uint16_t) * + idx_tab->sa_layout->lot_var_sizes); + refcount_destroy(&idx_tab->sa_refcount); + kmem_free(idx_tab->sa_idx_tab, + sizeof (uint32_t) * sa->sa_num_attrs); + kmem_free(idx_tab, sizeof (sa_idx_tab_t)); + } + mutex_exit(&sa->sa_lock); +} + +static void +sa_idx_tab_hold(objset_t *os, sa_idx_tab_t *idx_tab) +{ + sa_os_t *sa = os->os_sa; + + ASSERT(MUTEX_HELD(&sa->sa_lock)); + (void) refcount_add(&idx_tab->sa_refcount, NULL); +} + +void +sa_handle_destroy(sa_handle_t *hdl) +{ + mutex_enter(&hdl->sa_lock); + (void) dmu_buf_update_user((dmu_buf_t *)hdl->sa_bonus, hdl, + NULL, NULL, NULL); + + if (hdl->sa_bonus_tab) { + sa_idx_tab_rele(hdl->sa_os, hdl->sa_bonus_tab); + hdl->sa_bonus_tab = NULL; + } + if (hdl->sa_spill_tab) { + sa_idx_tab_rele(hdl->sa_os, hdl->sa_spill_tab); + hdl->sa_spill_tab = NULL; + } + + dmu_buf_rele(hdl->sa_bonus, NULL); + + if (hdl->sa_spill) + dmu_buf_rele((dmu_buf_t *)hdl->sa_spill, NULL); + mutex_exit(&hdl->sa_lock); + + kmem_cache_free(sa_cache, hdl); +} + +int +sa_handle_get_from_db(objset_t *os, dmu_buf_t *db, void *userp, + sa_handle_type_t hdl_type, sa_handle_t **handlepp) +{ + int error = 0; + dmu_object_info_t doi; + sa_handle_t *handle; + +#ifdef ZFS_DEBUG + dmu_object_info_from_db(db, &doi); + ASSERT(doi.doi_bonus_type == DMU_OT_SA || + doi.doi_bonus_type == DMU_OT_ZNODE); +#endif + /* find handle, if it exists */ + /* if one doesn't exist then create a new one, and initialize it */ + + handle = (hdl_type == SA_HDL_SHARED) ? dmu_buf_get_user(db) : NULL; + if (handle == NULL) { + sa_handle_t *newhandle; + handle = kmem_cache_alloc(sa_cache, KM_SLEEP); + handle->sa_userp = userp; + handle->sa_bonus = db; + handle->sa_os = os; + handle->sa_spill = NULL; + + error = sa_build_index(handle, SA_BONUS); + newhandle = (hdl_type == SA_HDL_SHARED) ? + dmu_buf_set_user_ie(db, handle, + NULL, sa_evict) : NULL; + + if (newhandle != NULL) { + kmem_cache_free(sa_cache, handle); + handle = newhandle; + } + } + *handlepp = handle; + + return (error); +} + +int +sa_handle_get(objset_t *objset, uint64_t objid, void *userp, + sa_handle_type_t hdl_type, sa_handle_t **handlepp) +{ + dmu_buf_t *db; + int error; + + if (error = dmu_bonus_hold(objset, objid, NULL, &db)) + return (error); + + return (sa_handle_get_from_db(objset, db, userp, hdl_type, + handlepp)); +} + +int +sa_buf_hold(objset_t *objset, uint64_t obj_num, void *tag, dmu_buf_t **db) +{ + return (dmu_bonus_hold(objset, obj_num, tag, db)); +} + +void +sa_buf_rele(dmu_buf_t *db, void *tag) +{ + dmu_buf_rele(db, tag); +} + +int +sa_lookup_impl(sa_handle_t *hdl, sa_bulk_attr_t *bulk, int count) +{ + ASSERT(hdl); + ASSERT(MUTEX_HELD(&hdl->sa_lock)); + return (sa_attr_op(hdl, bulk, count, SA_LOOKUP, NULL)); +} + +int +sa_lookup(sa_handle_t *hdl, sa_attr_type_t attr, void *buf, uint32_t buflen) +{ + int error; + sa_bulk_attr_t bulk; + + bulk.sa_attr = attr; + bulk.sa_data = buf; + bulk.sa_length = buflen; + bulk.sa_data_func = NULL; + + ASSERT(hdl); + mutex_enter(&hdl->sa_lock); + error = sa_lookup_impl(hdl, &bulk, 1); + mutex_exit(&hdl->sa_lock); + return (error); +} + +#ifdef _KERNEL +int +sa_lookup_uio(sa_handle_t *hdl, sa_attr_type_t attr, uio_t *uio) +{ + int error; + sa_bulk_attr_t bulk; + + bulk.sa_data = NULL; + bulk.sa_attr = attr; + bulk.sa_data_func = NULL; + + ASSERT(hdl); + + mutex_enter(&hdl->sa_lock); + if (sa_attr_op(hdl, &bulk, 1, SA_LOOKUP, NULL) == 0) { + error = uiomove((void *)bulk.sa_addr, MIN(bulk.sa_size, + uio->uio_resid), UIO_READ, uio); + } else { + error = ENOENT; + } + mutex_exit(&hdl->sa_lock); + return (error); + +} +#endif + +/* + * Find an already existing TOC from given os and data + * This is a special interface to be used by the ZPL for + * finding the uid/gid/gen attributes. + */ +void * +sa_find_idx_tab(objset_t *os, dmu_object_type_t bonustype, void *data) +{ + sa_idx_tab_t *idx_tab; + sa_hdr_phys_t *hdr = (sa_hdr_phys_t *)data; + sa_os_t *sa = os->os_sa; + sa_lot_t *tb, search; + avl_index_t loc; + + /* + * Deterimine layout number. If SA node and header == 0 then + * force the index table to the dummy "1" empty layout. + * + * The layout number would only be zero for a newly created file + * that has not added any attributes yet, or with crypto enabled which + * doesn't write any attributes to the bonus buffer. + */ + + search.lot_num = SA_LAYOUT_NUM(hdr, bonustype); + + tb = avl_find(&sa->sa_layout_num_tree, &search, &loc); + + /* Verify header size is consistent with layout information */ + ASSERT(tb); + ASSERT(IS_SA_BONUSTYPE(bonustype) && + SA_HDR_SIZE_MATCH_LAYOUT(hdr, tb) || !IS_SA_BONUSTYPE(bonustype) || + (IS_SA_BONUSTYPE(bonustype) && hdr->sa_layout_info == 0)); + + /* + * See if any of the already existing TOC entries can be reused? + */ + + for (idx_tab = list_head(&tb->lot_idx_tab); idx_tab; + idx_tab = list_next(&tb->lot_idx_tab, idx_tab)) { + boolean_t valid_idx = B_TRUE; + int i; + + if (tb->lot_var_sizes != 0 && + idx_tab->sa_variable_lengths != NULL) { + for (i = 0; i != tb->lot_var_sizes; i++) { + if (hdr->sa_lengths[i] != + idx_tab->sa_variable_lengths[i]) { + valid_idx = B_FALSE; + break; + } + } + } + if (valid_idx) { + sa_idx_tab_hold(os, idx_tab); + return (idx_tab); + } + } + + /* No such luck, create a new entry */ + idx_tab = kmem_zalloc(sizeof (sa_idx_tab_t), KM_SLEEP); + idx_tab->sa_idx_tab = + kmem_zalloc(sizeof (uint32_t) * sa->sa_num_attrs, KM_SLEEP); + idx_tab->sa_layout = tb; + refcount_create(&idx_tab->sa_refcount); + if (tb->lot_var_sizes) + idx_tab->sa_variable_lengths = kmem_alloc(sizeof (uint16_t) * + tb->lot_var_sizes, KM_SLEEP); + + sa_attr_iter(os, hdr, bonustype, sa_build_idx_tab, + tb, idx_tab); + sa_idx_tab_hold(os, idx_tab); /* one hold for consumer */ + sa_idx_tab_hold(os, idx_tab); /* one for layout */ + list_insert_tail(&tb->lot_idx_tab, idx_tab); + return (idx_tab); +} + +void +sa_default_locator(void **dataptr, uint32_t *len, uint32_t total_len, + boolean_t start, void *userdata) +{ + ASSERT(start); + + *dataptr = userdata; + *len = total_len; +} + +static void +sa_attr_register_sync(sa_handle_t *hdl, dmu_tx_t *tx) +{ + uint64_t attr_value = 0; + sa_os_t *sa = hdl->sa_os->os_sa; + sa_attr_table_t *tb = sa->sa_attr_table; + int i; + + mutex_enter(&sa->sa_lock); + + if (!sa->sa_need_attr_registration || sa->sa_master_obj == NULL) { + mutex_exit(&sa->sa_lock); + return; + } + + if (sa->sa_reg_attr_obj == NULL) { + int error; + sa->sa_reg_attr_obj = zap_create(hdl->sa_os, + DMU_OT_SA_ATTR_REGISTRATION, DMU_OT_NONE, 0, tx); + error = zap_add(hdl->sa_os, sa->sa_master_obj, + SA_REGISTRY, 8, 1, &sa->sa_reg_attr_obj, tx); + ASSERT(error == 0); + } + for (i = 0; i != sa->sa_num_attrs; i++) { + if (sa->sa_attr_table[i].sa_registered) + continue; + ATTR_ENCODE(attr_value, tb[i].sa_attr, tb[i].sa_length, + tb[i].sa_byteswap); + VERIFY(0 == zap_update(hdl->sa_os, sa->sa_reg_attr_obj, + tb[i].sa_name, 8, 1, &attr_value, tx)); + tb[i].sa_registered = B_TRUE; + } + sa->sa_need_attr_registration = B_FALSE; + mutex_exit(&sa->sa_lock); +} + +/* + * Replace all attributes with attributes specified in template. + * If dnode had a spill buffer then those attributes will be + * also be replaced, possibly with just an empty spill block + * + * This interface is intended to only be used for bulk adding of + * attributes for a new file. It will also be used by the ZPL + * when converting and old formatted znode to native SA support. + */ +int +sa_replace_all_by_template_locked(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, + int attr_count, dmu_tx_t *tx) +{ + sa_os_t *sa = hdl->sa_os->os_sa; + + if (sa->sa_need_attr_registration) + sa_attr_register_sync(hdl, tx); + return (sa_build_layouts(hdl, attr_desc, attr_count, tx)); +} + +int +sa_replace_all_by_template(sa_handle_t *hdl, sa_bulk_attr_t *attr_desc, + int attr_count, dmu_tx_t *tx) +{ + int error; + + mutex_enter(&hdl->sa_lock); + error = sa_replace_all_by_template_locked(hdl, attr_desc, + attr_count, tx); + mutex_exit(&hdl->sa_lock); + return (error); +} + +/* + * add/remove/replace a single attribute and then rewrite the entire set + * of attributes. + */ +static int +sa_modify_attrs(sa_handle_t *hdl, sa_attr_type_t newattr, + sa_data_op_t action, sa_data_locator_t *locator, void *datastart, + uint16_t buflen, dmu_tx_t *tx) +{ + sa_os_t *sa = hdl->sa_os->os_sa; + sa_bulk_attr_t *attr_desc; + void *old_data[2]; + int bonus_attr_count = 0; + int bonus_data_size, spill_data_size; + int spill_attr_count = 0; + int error; + uint16_t length; + int i, j, k, length_idx; + sa_hdr_phys_t *hdr; + sa_idx_tab_t *idx_tab; + int attr_count; + int count; + + ASSERT(MUTEX_HELD(&hdl->sa_lock)); + + /* First make of copy of the old data */ + + if (((dmu_buf_impl_t *)hdl->sa_bonus)->db_dnode->dn_bonuslen) { + bonus_data_size = hdl->sa_bonus->db_size; + old_data[0] = kmem_alloc(bonus_data_size, KM_SLEEP); + bcopy(hdl->sa_bonus->db_data, old_data[0], + hdl->sa_bonus->db_size); + bonus_attr_count = hdl->sa_bonus_tab->sa_layout->lot_attr_count; + } else { + old_data[0] = NULL; + } + + /* Bring spill buffer online if it isn't currently */ + + if (sa_has_blkptr(hdl)) { + spill_data_size = hdl->sa_spill->db_size; + old_data[1] = kmem_alloc(spill_data_size, KM_SLEEP); + bcopy(hdl->sa_spill->db_data, old_data[1], + hdl->sa_spill->db_size); + spill_attr_count = + hdl->sa_spill_tab->sa_layout->lot_attr_count; + } else { + old_data[1] = NULL; + } + + /* build descriptor of all attributes */ + + attr_count = bonus_attr_count + spill_attr_count; + if (action == SA_ADD) + attr_count++; + else if (action == SA_REMOVE) + attr_count--; + + attr_desc = kmem_zalloc(sizeof (sa_bulk_attr_t) * attr_count, KM_SLEEP); + + /* + * loop through bonus and spill buffer if it exists, and + * build up new attr_descriptor to reset the attributes + */ + k = j = 0; + count = bonus_attr_count; + hdr = SA_GET_HDR(hdl, SA_BONUS); + idx_tab = SA_IDX_TAB_GET(hdl, SA_BONUS); + for (; k != 2; k++) { + /* iterate over each attribute in layout */ + for (i = 0, length_idx = 0; i != count; i++) { + sa_attr_type_t attr; + + attr = idx_tab->sa_layout->lot_attrs[i]; + if (attr == newattr) { + if (action == SA_REMOVE) { + j++; + continue; + } + ASSERT(SA_REGISTERED_LEN(sa, attr) == 0); + ASSERT(action == SA_REPLACE); + SA_ADD_BULK_ATTR(attr_desc, j, attr, + locator, datastart, buflen); + } else { + length = SA_REGISTERED_LEN(sa, attr); + if (length == 0) { + length = hdr->sa_lengths[length_idx++]; + } + + SA_ADD_BULK_ATTR(attr_desc, j, attr, + NULL, (void *) + (TOC_OFF(idx_tab->sa_idx_tab[attr]) + + (uintptr_t)old_data[k]), length); + } + } + if (k == 0 && hdl->sa_spill) { + hdr = SA_GET_HDR(hdl, SA_SPILL); + idx_tab = SA_IDX_TAB_GET(hdl, SA_SPILL); + count = spill_attr_count; + } else { + break; + } + } + if (action == SA_ADD) { + length = SA_REGISTERED_LEN(sa, newattr); + if (length == 0) { + length = buflen; + } + SA_ADD_BULK_ATTR(attr_desc, j, newattr, locator, + datastart, buflen); + } + + error = sa_build_layouts(hdl, attr_desc, attr_count, tx); + + if (old_data[0]) + kmem_free(old_data[0], bonus_data_size); + if (old_data[1]) + kmem_free(old_data[1], spill_data_size); + kmem_free(attr_desc, sizeof (sa_bulk_attr_t) * attr_count); + + return (error); +} + +static int +sa_bulk_update_impl(sa_handle_t *hdl, sa_bulk_attr_t *bulk, int count, + dmu_tx_t *tx) +{ + int error; + sa_os_t *sa = hdl->sa_os->os_sa; + dmu_object_type_t bonustype; + + bonustype = SA_BONUSTYPE_FROM_DB(SA_GET_DB(hdl, SA_BONUS)); + + ASSERT(hdl); + ASSERT(MUTEX_HELD(&hdl->sa_lock)); + + /* sync out registration table if necessary */ + if (sa->sa_need_attr_registration) + sa_attr_register_sync(hdl, tx); + + error = sa_attr_op(hdl, bulk, count, SA_UPDATE, tx); + if (error == 0 && !IS_SA_BONUSTYPE(bonustype) && sa->sa_update_cb) + sa->sa_update_cb(hdl, tx); + + return (error); +} + +/* + * update or add new attribute + */ +int +sa_update(sa_handle_t *hdl, sa_attr_type_t type, + void *buf, uint32_t buflen, dmu_tx_t *tx) +{ + int error; + sa_bulk_attr_t bulk; + + bulk.sa_attr = type; + bulk.sa_data_func = NULL; + bulk.sa_length = buflen; + bulk.sa_data = buf; + + mutex_enter(&hdl->sa_lock); + error = sa_bulk_update_impl(hdl, &bulk, 1, tx); + mutex_exit(&hdl->sa_lock); + return (error); +} + +int +sa_update_from_cb(sa_handle_t *hdl, sa_attr_type_t attr, + uint32_t buflen, sa_data_locator_t *locator, void *userdata, dmu_tx_t *tx) +{ + int error; + sa_bulk_attr_t bulk; + + bulk.sa_attr = attr; + bulk.sa_data = userdata; + bulk.sa_data_func = locator; + bulk.sa_length = buflen; + + mutex_enter(&hdl->sa_lock); + error = sa_bulk_update_impl(hdl, &bulk, 1, tx); + mutex_exit(&hdl->sa_lock); + return (error); +} + +/* + * Return size of an attribute + */ + +int +sa_size(sa_handle_t *hdl, sa_attr_type_t attr, int *size) +{ + sa_bulk_attr_t bulk; + + bulk.sa_data = NULL; + bulk.sa_attr = attr; + bulk.sa_data_func = NULL; + + ASSERT(hdl); + mutex_enter(&hdl->sa_lock); + if (sa_attr_op(hdl, &bulk, 1, SA_LOOKUP, NULL)) { + mutex_exit(&hdl->sa_lock); + return (ENOENT); + } + *size = bulk.sa_size; + + mutex_exit(&hdl->sa_lock); + return (0); +} + +int +sa_bulk_lookup_locked(sa_handle_t *hdl, sa_bulk_attr_t *attrs, int count) +{ + ASSERT(hdl); + ASSERT(MUTEX_HELD(&hdl->sa_lock)); + return (sa_lookup_impl(hdl, attrs, count)); +} + +int +sa_bulk_lookup(sa_handle_t *hdl, sa_bulk_attr_t *attrs, int count) +{ + int error; + + ASSERT(hdl); + mutex_enter(&hdl->sa_lock); + error = sa_bulk_lookup_locked(hdl, attrs, count); + mutex_exit(&hdl->sa_lock); + return (error); +} + +int +sa_bulk_update(sa_handle_t *hdl, sa_bulk_attr_t *attrs, int count, dmu_tx_t *tx) +{ + int error; + + ASSERT(hdl); + mutex_enter(&hdl->sa_lock); + error = sa_bulk_update_impl(hdl, attrs, count, tx); + mutex_exit(&hdl->sa_lock); + return (error); +} + +int +sa_remove(sa_handle_t *hdl, sa_attr_type_t attr, dmu_tx_t *tx) +{ + int error; + + mutex_enter(&hdl->sa_lock); + error = sa_modify_attrs(hdl, attr, SA_REMOVE, NULL, + NULL, 0, tx); + mutex_exit(&hdl->sa_lock); + return (error); +} + +void +sa_object_info(sa_handle_t *hdl, dmu_object_info_t *doi) +{ + dmu_object_info_from_db((dmu_buf_t *)hdl->sa_bonus, doi); +} + +void +sa_object_size(sa_handle_t *hdl, uint32_t *blksize, u_longlong_t *nblocks) +{ + dmu_object_size_from_db((dmu_buf_t *)hdl->sa_bonus, + blksize, nblocks); +} + +void +sa_update_user(sa_handle_t *newhdl, sa_handle_t *oldhdl) +{ + (void) dmu_buf_update_user((dmu_buf_t *)newhdl->sa_bonus, + oldhdl, newhdl, NULL, sa_evict); + oldhdl->sa_bonus = NULL; +} + +void +sa_set_userp(sa_handle_t *hdl, void *ptr) +{ + hdl->sa_userp = ptr; +} + +dmu_buf_t * +sa_get_db(sa_handle_t *hdl) +{ + return ((dmu_buf_t *)hdl->sa_bonus); +} + +void * +sa_get_userdata(sa_handle_t *hdl) +{ + return (hdl->sa_userp); +} + +void +sa_register_update_callback_locked(objset_t *os, sa_update_cb_t *func) +{ + ASSERT(MUTEX_HELD(&os->os_sa->sa_lock)); + os->os_sa->sa_update_cb = func; +} + +void +sa_register_update_callback(objset_t *os, sa_update_cb_t *func) +{ + + mutex_enter(&os->os_sa->sa_lock); + sa_register_update_callback_locked(os, func); + mutex_exit(&os->os_sa->sa_lock); +} + +uint64_t +sa_handle_object(sa_handle_t *hdl) +{ + return (hdl->sa_bonus->db_object); +} + +boolean_t +sa_enabled(objset_t *os) +{ + return (os->os_sa == NULL); +} + +int +sa_set_sa_object(objset_t *os, uint64_t sa_object) +{ + sa_os_t *sa = os->os_sa; + + if (sa->sa_master_obj) + return (1); + + sa->sa_master_obj = sa_object; + + return (0); +} + +int +sa_hdrsize(void *arg) +{ + sa_hdr_phys_t *hdr = arg; + + return (SA_HDR_SIZE(hdr)); +} + +void +sa_handle_lock(sa_handle_t *hdl) +{ + ASSERT(hdl); + mutex_enter(&hdl->sa_lock); +} + +void +sa_handle_unlock(sa_handle_t *hdl) +{ + ASSERT(hdl); + mutex_exit(&hdl->sa_lock); +} diff --git a/module/zfs/sha256.c b/module/zfs/sha256.c index ca7076cb6..f515be6bb 100644 --- a/module/zfs/sha256.c +++ b/module/zfs/sha256.c @@ -19,111 +19,32 @@ * CDDL HEADER END */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ - -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #include <sys/zio.h> -#include <sys/zio_checksum.h> - -/* - * SHA-256 checksum, as specified in FIPS 180-3, available at: - * http://csrc.nist.gov/publications/PubsFIPS.html - * - * This is a very compact implementation of SHA-256. - * It is designed to be simple and portable, not to be fast. - */ - -/* - * The literal definitions of Ch() and Maj() according to FIPS 180-3 are: - * - * Ch(x, y, z) (x & y) ^ (~x & z) - * Maj(x, y, z) (x & y) ^ (x & z) ^ (y & z) - * - * We use equivalent logical reductions here that require one less op. - */ -#define Ch(x, y, z) ((z) ^ ((x) & ((y) ^ (z)))) -#define Maj(x, y, z) (((x) & (y)) ^ ((z) & ((x) ^ (y)))) -#define Rot32(x, s) (((x) >> s) | ((x) << (32 - s))) -#define SIGMA0(x) (Rot32(x, 2) ^ Rot32(x, 13) ^ Rot32(x, 22)) -#define SIGMA1(x) (Rot32(x, 6) ^ Rot32(x, 11) ^ Rot32(x, 25)) -#define sigma0(x) (Rot32(x, 7) ^ Rot32(x, 18) ^ ((x) >> 3)) -#define sigma1(x) (Rot32(x, 17) ^ Rot32(x, 19) ^ ((x) >> 10)) - -static const uint32_t SHA256_K[64] = { - 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, - 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, - 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, - 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, - 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, - 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, - 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, - 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, - 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, - 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, - 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, - 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, - 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, - 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, - 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, - 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 -}; - -static void -SHA256Transform(uint32_t *H, const uint8_t *cp) -{ - uint32_t a, b, c, d, e, f, g, h, t, T1, T2, W[64]; - - for (t = 0; t < 16; t++, cp += 4) - W[t] = (cp[0] << 24) | (cp[1] << 16) | (cp[2] << 8) | cp[3]; - - for (t = 16; t < 64; t++) - W[t] = sigma1(W[t - 2]) + W[t - 7] + - sigma0(W[t - 15]) + W[t - 16]; - - a = H[0]; b = H[1]; c = H[2]; d = H[3]; - e = H[4]; f = H[5]; g = H[6]; h = H[7]; - - for (t = 0; t < 64; t++) { - T1 = h + SIGMA1(e) + Ch(e, f, g) + SHA256_K[t] + W[t]; - T2 = SIGMA0(a) + Maj(a, b, c); - h = g; g = f; f = e; e = d + T1; - d = c; c = b; b = a; a = T1 + T2; - } - - H[0] += a; H[1] += b; H[2] += c; H[3] += d; - H[4] += e; H[5] += f; H[6] += g; H[7] += h; -} +#include <sys/sha2.h> void zio_checksum_SHA256(const void *buf, uint64_t size, zio_cksum_t *zcp) { - uint32_t H[8] = { 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, - 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 }; - uint8_t pad[128]; - int i, padsize; - - for (i = 0; i < (size & ~63ULL); i += 64) - SHA256Transform(H, (uint8_t *)buf + i); - - for (padsize = 0; i < size; i++) - pad[padsize++] = *((uint8_t *)buf + i); - - for (pad[padsize++] = 0x80; (padsize & 63) != 56; padsize++) - pad[padsize] = 0; - - for (i = 56; i >= 0; i -= 8) - pad[padsize++] = (size << 3) >> i; - - for (i = 0; i < padsize; i += 64) - SHA256Transform(H, pad + i); - - ZIO_SET_CHECKSUM(zcp, - (uint64_t)H[0] << 32 | H[1], - (uint64_t)H[2] << 32 | H[3], - (uint64_t)H[4] << 32 | H[5], - (uint64_t)H[6] << 32 | H[7]); + SHA2_CTX ctx; + zio_cksum_t tmp; + + SHA2Init(SHA256, &ctx); + SHA2Update(&ctx, buf, size); + SHA2Final(&tmp, &ctx); + + /* + * A prior implementation of this function had a + * private SHA256 implementation always wrote things out in + * Big Endian and there wasn't a byteswap variant of it. + * To preseve on disk compatibility we need to force that + * behaviour. + */ + zcp->zc_word[0] = BE_64(tmp.zc_word[0]); + zcp->zc_word[1] = BE_64(tmp.zc_word[1]); + zcp->zc_word[2] = BE_64(tmp.zc_word[2]); + zcp->zc_word[3] = BE_64(tmp.zc_word[3]); } diff --git a/module/zfs/spa.c b/module/zfs/spa.c index d7ed23e6f..d7c5de0d3 100644 --- a/module/zfs/spa.c +++ b/module/zfs/spa.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -35,13 +34,14 @@ #include <sys/spa_impl.h> #include <sys/zio.h> #include <sys/zio_checksum.h> -#include <sys/zio_compress.h> #include <sys/dmu.h> #include <sys/dmu_tx.h> #include <sys/zap.h> #include <sys/zil.h> +#include <sys/ddt.h> #include <sys/vdev_impl.h> #include <sys/metaslab.h> +#include <sys/metaslab_impl.h> #include <sys/uberblock_impl.h> #include <sys/txg.h> #include <sys/avl.h> @@ -57,57 +57,78 @@ #include <sys/arc.h> #include <sys/callb.h> #include <sys/systeminfo.h> -#include <sys/sunddi.h> #include <sys/spa_boot.h> #include <sys/zfs_ioctl.h> +#include <sys/dsl_scan.h> #ifdef _KERNEL +#include <sys/bootprops.h> +#include <sys/callb.h> +#include <sys/cpupart.h> +#include <sys/pool.h> +#include <sys/sysdc.h> #include <sys/zone.h> #endif /* _KERNEL */ #include "zfs_prop.h" #include "zfs_comutil.h" -enum zti_modes { +typedef enum zti_modes { zti_mode_fixed, /* value is # of threads (min 1) */ zti_mode_online_percent, /* value is % of online CPUs */ - zti_mode_tune, /* fill from zio_taskq_tune_* */ + zti_mode_batch, /* cpu-intensive; value is ignored */ + zti_mode_null, /* don't create a taskq */ zti_nmodes -}; +} zti_modes_t; -#define ZTI_THREAD_FIX(n) { zti_mode_fixed, (n) } -#define ZTI_THREAD_PCT(n) { zti_mode_online_percent, (n) } -#define ZTI_THREAD_TUNE { zti_mode_tune, 0 } +#define ZTI_FIX(n) { zti_mode_fixed, (n) } +#define ZTI_PCT(n) { zti_mode_online_percent, (n) } +#define ZTI_BATCH { zti_mode_batch, 0 } +#define ZTI_NULL { zti_mode_null, 0 } -#define ZTI_THREAD_ONE ZTI_THREAD_FIX(1) +#define ZTI_ONE ZTI_FIX(1) typedef struct zio_taskq_info { - const char *zti_name; - struct { - enum zti_modes zti_mode; - uint_t zti_value; - } zti_nthreads[ZIO_TASKQ_TYPES]; + enum zti_modes zti_mode; + uint_t zti_value; } zio_taskq_info_t; static const char *const zio_taskq_types[ZIO_TASKQ_TYPES] = { - "issue", "intr" + "issue", "issue_high", "intr", "intr_high" }; -const zio_taskq_info_t zio_taskqs[ZIO_TYPES] = { - /* ISSUE INTR */ - { "spa_zio_null", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } }, - { "spa_zio_read", { ZTI_THREAD_FIX(8), ZTI_THREAD_TUNE } }, - { "spa_zio_write", { ZTI_THREAD_TUNE, ZTI_THREAD_FIX(8) } }, - { "spa_zio_free", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } }, - { "spa_zio_claim", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } }, - { "spa_zio_ioctl", { ZTI_THREAD_ONE, ZTI_THREAD_ONE } }, +/* + * Define the taskq threads for the following I/O types: + * NULL, READ, WRITE, FREE, CLAIM, and IOCTL + */ +const zio_taskq_info_t zio_taskqs[ZIO_TYPES][ZIO_TASKQ_TYPES] = { + /* ISSUE ISSUE_HIGH INTR INTR_HIGH */ + { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, + { ZTI_FIX(8), ZTI_NULL, ZTI_BATCH, ZTI_NULL }, + { ZTI_BATCH, ZTI_FIX(5), ZTI_FIX(8), ZTI_FIX(5) }, + { ZTI_FIX(100), ZTI_NULL, ZTI_ONE, ZTI_NULL }, + { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, + { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, }; -enum zti_modes zio_taskq_tune_mode = zti_mode_online_percent; -uint_t zio_taskq_tune_value = 80; /* #threads = 80% of # online CPUs */ - -static void spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx); +static dsl_syncfunc_t spa_sync_props; static boolean_t spa_has_active_shared_spare(spa_t *spa); +static int spa_load_impl(spa_t *spa, uint64_t, nvlist_t *config, + spa_load_state_t state, spa_import_type_t type, boolean_t mosconfig, + char **ereport); + +uint_t zio_taskq_batch_pct = 100; /* 1 thread per cpu in pset */ +id_t zio_taskq_psrset_bind = PS_NONE; +boolean_t zio_taskq_sysdc = B_TRUE; /* use SDC scheduling class */ +uint_t zio_taskq_basedc = 80; /* base duty cycle */ + +boolean_t spa_create_process = B_TRUE; /* no process ==> no sysdc */ + +/* + * This (illegal) pool name is used when temporarily importing a spa_t in order + * to get the vdev stats associated with the imported devices. + */ +#define TRYIMPORT_NAME "$import" /* * ========================================================================== @@ -144,7 +165,7 @@ static void spa_prop_get_config(spa_t *spa, nvlist_t **nvp) { uint64_t size; - uint64_t used; + uint64_t alloc; uint64_t cap, version; zprop_source_t src = ZPROP_SRC_NONE; spa_config_dirent_t *dp; @@ -152,17 +173,20 @@ spa_prop_get_config(spa_t *spa, nvlist_t **nvp) ASSERT(MUTEX_HELD(&spa->spa_props_lock)); if (spa->spa_root_vdev != NULL) { - size = spa_get_space(spa); - used = spa_get_alloc(spa); + alloc = metaslab_class_get_alloc(spa_normal_class(spa)); + size = metaslab_class_get_space(spa_normal_class(spa)); spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa_name(spa), 0, src); spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src); - spa_prop_add_list(*nvp, ZPOOL_PROP_USED, NULL, used, src); - spa_prop_add_list(*nvp, ZPOOL_PROP_AVAILABLE, NULL, - size - used, src); + spa_prop_add_list(*nvp, ZPOOL_PROP_ALLOCATED, NULL, alloc, src); + spa_prop_add_list(*nvp, ZPOOL_PROP_FREE, NULL, + size - alloc, src); - cap = (size == 0) ? 0 : (used * 100 / size); + cap = (size == 0) ? 0 : (alloc * 100 / size); spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src); + spa_prop_add_list(*nvp, ZPOOL_PROP_DEDUPRATIO, NULL, + ddt_get_pool_dedup_ratio(spa), src); + spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL, spa->spa_root_vdev->vdev_state, src); @@ -197,9 +221,9 @@ spa_prop_get_config(spa_t *spa, nvlist_t **nvp) int spa_prop_get(spa_t *spa, nvlist_t **nvp) { + objset_t *mos = spa->spa_meta_objset; zap_cursor_t zc; zap_attribute_t za; - objset_t *mos = spa->spa_meta_objset; int err; VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); @@ -212,7 +236,7 @@ spa_prop_get(spa_t *spa, nvlist_t **nvp) spa_prop_get_config(spa, nvp); /* If no pool property object, no more prop to get. */ - if (spa->spa_pool_props_object == 0) { + if (mos == NULL || spa->spa_pool_props_object == 0) { mutex_exit(&spa->spa_props_lock); return (0); } @@ -371,12 +395,14 @@ spa_prop_validate(spa_t *spa, nvlist_t *props) break; } - if (error = dmu_objset_open(strval, DMU_OST_ZFS, - DS_MODE_USER | DS_MODE_READONLY, &os)) + if (error = dmu_objset_hold(strval, FTAG, &os)) break; - /* We don't support gzip bootable datasets */ - if ((error = dsl_prop_get_integer(strval, + /* Must be ZPL and not gzip compressed. */ + + if (dmu_objset_type(os) != DMU_OST_ZFS) { + error = ENOTSUP; + } else if ((error = dsl_prop_get_integer(strval, zfs_prop_to_name(ZFS_PROP_COMPRESSION), &compress, NULL)) == 0 && !BOOTFS_COMPRESS_VALID(compress)) { @@ -384,7 +410,7 @@ spa_prop_validate(spa_t *spa, nvlist_t *props) } else { objnum = dmu_objset_id(os); } - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); } break; @@ -432,6 +458,16 @@ spa_prop_validate(spa_t *spa, nvlist_t *props) strcmp(slash, "/..") == 0) error = EINVAL; break; + + case ZPOOL_PROP_DEDUPDITTO: + if (spa_version(spa) < SPA_VERSION_DEDUP) + error = ENOTSUP; + else + error = nvpair_value_uint64(elem, &intval); + if (error == 0 && + intval != 0 && intval < ZIO_DEDUPDITTO_MIN) + error = EINVAL; + break; } if (error) @@ -565,63 +601,185 @@ spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) offsetof(spa_error_entry_t, se_avl)); } -/* - * Activate an uninitialized pool. - */ -static void -spa_activate(spa_t *spa, int mode) +static taskq_t * +spa_taskq_create(spa_t *spa, const char *name, enum zti_modes mode, + uint_t value) { - ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); + uint_t flags = TASKQ_PREPOPULATE; + boolean_t batch = B_FALSE; - spa->spa_state = POOL_STATE_ACTIVE; - spa->spa_mode = mode; + switch (mode) { + case zti_mode_null: + return (NULL); /* no taskq needed */ - spa->spa_normal_class = metaslab_class_create(zfs_metaslab_ops); - spa->spa_log_class = metaslab_class_create(zfs_metaslab_ops); + case zti_mode_fixed: + ASSERT3U(value, >=, 1); + value = MAX(value, 1); + break; + case zti_mode_batch: + batch = B_TRUE; + flags |= TASKQ_THREADS_CPU_PCT; + value = zio_taskq_batch_pct; + break; + + case zti_mode_online_percent: + flags |= TASKQ_THREADS_CPU_PCT; + break; + + default: + panic("unrecognized mode for %s taskq (%u:%u) in " + "spa_activate()", + name, mode, value); + break; + } + + if (zio_taskq_sysdc && spa->spa_proc != &p0) { + if (batch) + flags |= TASKQ_DC_BATCH; + + return (taskq_create_sysdc(name, value, 50, INT_MAX, + spa->spa_proc, zio_taskq_basedc, flags)); + } + return (taskq_create_proc(name, value, maxclsyspri, 50, INT_MAX, + spa->spa_proc, flags)); +} + +static void +spa_create_zio_taskqs(spa_t *spa) +{ for (int t = 0; t < ZIO_TYPES; t++) { - const zio_taskq_info_t *ztip = &zio_taskqs[t]; for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { - enum zti_modes mode = ztip->zti_nthreads[q].zti_mode; - uint_t value = ztip->zti_nthreads[q].zti_value; + const zio_taskq_info_t *ztip = &zio_taskqs[t][q]; + enum zti_modes mode = ztip->zti_mode; + uint_t value = ztip->zti_value; char name[32]; (void) snprintf(name, sizeof (name), - "%s_%s", ztip->zti_name, zio_taskq_types[q]); + "%s_%s", zio_type_name[t], zio_taskq_types[q]); - if (mode == zti_mode_tune) { - mode = zio_taskq_tune_mode; - value = zio_taskq_tune_value; - if (mode == zti_mode_tune) - mode = zti_mode_online_percent; - } + spa->spa_zio_taskq[t][q] = + spa_taskq_create(spa, name, mode, value); + } + } +} + +#ifdef _KERNEL +static void +spa_thread(void *arg) +{ + callb_cpr_t cprinfo; - switch (mode) { - case zti_mode_fixed: - ASSERT3U(value, >=, 1); - value = MAX(value, 1); + spa_t *spa = arg; + user_t *pu = PTOU(curproc); - spa->spa_zio_taskq[t][q] = taskq_create(name, - value, maxclsyspri, 50, INT_MAX, - TASKQ_PREPOPULATE); - break; + CALLB_CPR_INIT(&cprinfo, &spa->spa_proc_lock, callb_generic_cpr, + spa->spa_name); - case zti_mode_online_percent: - spa->spa_zio_taskq[t][q] = taskq_create(name, - value, maxclsyspri, 50, INT_MAX, - TASKQ_PREPOPULATE | TASKQ_THREADS_CPU_PCT); - break; + ASSERT(curproc != &p0); + (void) snprintf(pu->u_psargs, sizeof (pu->u_psargs), + "zpool-%s", spa->spa_name); + (void) strlcpy(pu->u_comm, pu->u_psargs, sizeof (pu->u_comm)); - case zti_mode_tune: - default: - panic("unrecognized mode for " - "zio_taskqs[%u]->zti_nthreads[%u] (%u:%u) " - "in spa_activate()", - t, q, mode, value); - break; + /* bind this thread to the requested psrset */ + if (zio_taskq_psrset_bind != PS_NONE) { + pool_lock(); + mutex_enter(&cpu_lock); + mutex_enter(&pidlock); + mutex_enter(&curproc->p_lock); + + if (cpupart_bind_thread(curthread, zio_taskq_psrset_bind, + 0, NULL, NULL) == 0) { + curthread->t_bind_pset = zio_taskq_psrset_bind; + } else { + cmn_err(CE_WARN, + "Couldn't bind process for zfs pool \"%s\" to " + "pset %d\n", spa->spa_name, zio_taskq_psrset_bind); + } + + mutex_exit(&curproc->p_lock); + mutex_exit(&pidlock); + mutex_exit(&cpu_lock); + pool_unlock(); + } + + if (zio_taskq_sysdc) { + sysdc_thread_enter(curthread, 100, 0); + } + + spa->spa_proc = curproc; + spa->spa_did = curthread->t_did; + + spa_create_zio_taskqs(spa); + + mutex_enter(&spa->spa_proc_lock); + ASSERT(spa->spa_proc_state == SPA_PROC_CREATED); + + spa->spa_proc_state = SPA_PROC_ACTIVE; + cv_broadcast(&spa->spa_proc_cv); + + CALLB_CPR_SAFE_BEGIN(&cprinfo); + while (spa->spa_proc_state == SPA_PROC_ACTIVE) + cv_wait(&spa->spa_proc_cv, &spa->spa_proc_lock); + CALLB_CPR_SAFE_END(&cprinfo, &spa->spa_proc_lock); + + ASSERT(spa->spa_proc_state == SPA_PROC_DEACTIVATE); + spa->spa_proc_state = SPA_PROC_GONE; + spa->spa_proc = &p0; + cv_broadcast(&spa->spa_proc_cv); + CALLB_CPR_EXIT(&cprinfo); /* drops spa_proc_lock */ + + mutex_enter(&curproc->p_lock); + lwp_exit(); +} +#endif + +/* + * Activate an uninitialized pool. + */ +static void +spa_activate(spa_t *spa, int mode) +{ + ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); + + spa->spa_state = POOL_STATE_ACTIVE; + spa->spa_mode = mode; + + spa->spa_normal_class = metaslab_class_create(spa, zfs_metaslab_ops); + spa->spa_log_class = metaslab_class_create(spa, zfs_metaslab_ops); + + /* Try to create a covering process */ + mutex_enter(&spa->spa_proc_lock); + ASSERT(spa->spa_proc_state == SPA_PROC_NONE); + ASSERT(spa->spa_proc == &p0); + spa->spa_did = 0; + + /* Only create a process if we're going to be around a while. */ + if (spa_create_process && strcmp(spa->spa_name, TRYIMPORT_NAME) != 0) { + if (newproc(spa_thread, (caddr_t)spa, syscid, maxclsyspri, + NULL, 0) == 0) { + spa->spa_proc_state = SPA_PROC_CREATED; + while (spa->spa_proc_state == SPA_PROC_CREATED) { + cv_wait(&spa->spa_proc_cv, + &spa->spa_proc_lock); } + ASSERT(spa->spa_proc_state == SPA_PROC_ACTIVE); + ASSERT(spa->spa_proc != &p0); + ASSERT(spa->spa_did != 0); + } else { +#ifdef _KERNEL + cmn_err(CE_WARN, + "Couldn't create process for zfs pool \"%s\"\n", + spa->spa_name); +#endif } } + mutex_exit(&spa->spa_proc_lock); + + /* If we didn't create a process, we need to create our taskqs. */ + if (spa->spa_proc == &p0) { + spa_create_zio_taskqs(spa); + } list_create(&spa->spa_config_dirty_list, sizeof (vdev_t), offsetof(vdev_t, vdev_config_dirty_node)); @@ -658,7 +816,8 @@ spa_deactivate(spa_t *spa) for (int t = 0; t < ZIO_TYPES; t++) { for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { - taskq_destroy(spa->spa_zio_taskq[t][q]); + if (spa->spa_zio_taskq[t][q] != NULL) + taskq_destroy(spa->spa_zio_taskq[t][q]); spa->spa_zio_taskq[t][q] = NULL; } } @@ -679,6 +838,31 @@ spa_deactivate(spa_t *spa) avl_destroy(&spa->spa_errlist_last); spa->spa_state = POOL_STATE_UNINITIALIZED; + + mutex_enter(&spa->spa_proc_lock); + if (spa->spa_proc_state != SPA_PROC_NONE) { + ASSERT(spa->spa_proc_state == SPA_PROC_ACTIVE); + spa->spa_proc_state = SPA_PROC_DEACTIVATE; + cv_broadcast(&spa->spa_proc_cv); + while (spa->spa_proc_state == SPA_PROC_DEACTIVATE) { + ASSERT(spa->spa_proc != &p0); + cv_wait(&spa->spa_proc_cv, &spa->spa_proc_lock); + } + ASSERT(spa->spa_proc_state == SPA_PROC_GONE); + spa->spa_proc_state = SPA_PROC_NONE; + } + ASSERT(spa->spa_proc == &p0); + mutex_exit(&spa->spa_proc_lock); + + /* + * We want to make sure spa_thread() has actually exited the ZFS + * module, so that the module can't be unloaded out from underneath + * it. + */ + if (spa->spa_did != 0) { + thread_join(spa->spa_did); + spa->spa_did = 0; + } } /* @@ -759,14 +943,19 @@ spa_unload(spa_t *spa) spa->spa_async_zio_root = NULL; } + bpobj_close(&spa->spa_deferred_bpobj); + /* * Close the dsl pool. */ if (spa->spa_dsl_pool) { dsl_pool_close(spa->spa_dsl_pool); spa->spa_dsl_pool = NULL; + spa->spa_meta_objset = NULL; } + ddt_unload(spa); + spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); /* @@ -919,7 +1108,7 @@ spa_load_spares(spa_t *spa) KM_SLEEP); for (i = 0; i < spa->spa_spares.sav_count; i++) spares[i] = vdev_config_generate(spa, - spa->spa_spares.sav_vdevs[i], B_TRUE, B_TRUE, B_FALSE); + spa->spa_spares.sav_vdevs[i], B_TRUE, VDEV_CONFIG_SPARE); VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, spares, spa->spa_spares.sav_count) == 0); for (i = 0; i < spa->spa_spares.sav_count; i++) @@ -1045,7 +1234,7 @@ spa_load_l2cache(spa_t *spa) l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); for (i = 0; i < sav->sav_count; i++) l2cache[i] = vdev_config_generate(spa, - sav->sav_vdevs[i], B_TRUE, B_FALSE, B_TRUE); + sav->sav_vdevs[i], B_TRUE, VDEV_CONFIG_L2CACHE); VERIFY(nvlist_add_nvlist_array(sav->sav_config, ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0); out: @@ -1099,26 +1288,23 @@ spa_check_removed(vdev_t *vd) * that the label does not contain the most up-to-date information. */ void -spa_load_log_state(spa_t *spa) +spa_load_log_state(spa_t *spa, nvlist_t *nv) { - nvlist_t *nv, *nvroot, **child; - uint64_t is_log; - uint_t children; - vdev_t *rvd = spa->spa_root_vdev; - - VERIFY(load_nvlist(spa, spa->spa_config_object, &nv) == 0); - VERIFY(nvlist_lookup_nvlist(nv, ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); - VERIFY(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, - &child, &children) == 0); + vdev_t *ovd, *rvd = spa->spa_root_vdev; - for (int c = 0; c < children; c++) { - vdev_t *tvd = rvd->vdev_child[c]; + /* + * Load the original root vdev tree from the passed config. + */ + spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); + VERIFY(spa_config_parse(spa, &ovd, nv, NULL, 0, VDEV_ALLOC_LOAD) == 0); - if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG, - &is_log) == 0 && is_log) - vdev_load_log_state(tvd, child[c]); + for (int c = 0; c < rvd->vdev_children; c++) { + vdev_t *cvd = rvd->vdev_child[c]; + if (cvd->vdev_islog) + vdev_load_log_state(cvd, ovd->vdev_child[c]); } - nvlist_free(nv); + vdev_free(ovd); + spa_config_exit(spa, SCL_ALL, FTAG); } /* @@ -1133,7 +1319,7 @@ spa_check_logs(spa_t *spa) case SPA_LOG_UNKNOWN: if (dmu_objset_find(spa->spa_name, zil_check_log_chain, NULL, DS_FIND_CHILDREN)) { - spa->spa_log_state = SPA_LOG_MISSING; + spa_set_log_state(spa, SPA_LOG_MISSING); return (1); } break; @@ -1141,23 +1327,344 @@ spa_check_logs(spa_t *spa) return (0); } +static boolean_t +spa_passivate_log(spa_t *spa) +{ + vdev_t *rvd = spa->spa_root_vdev; + boolean_t slog_found = B_FALSE; + + ASSERT(spa_config_held(spa, SCL_ALLOC, RW_WRITER)); + + if (!spa_has_slogs(spa)) + return (B_FALSE); + + for (int c = 0; c < rvd->vdev_children; c++) { + vdev_t *tvd = rvd->vdev_child[c]; + metaslab_group_t *mg = tvd->vdev_mg; + + if (tvd->vdev_islog) { + metaslab_group_passivate(mg); + slog_found = B_TRUE; + } + } + + return (slog_found); +} + +static void +spa_activate_log(spa_t *spa) +{ + vdev_t *rvd = spa->spa_root_vdev; + + ASSERT(spa_config_held(spa, SCL_ALLOC, RW_WRITER)); + + for (int c = 0; c < rvd->vdev_children; c++) { + vdev_t *tvd = rvd->vdev_child[c]; + metaslab_group_t *mg = tvd->vdev_mg; + + if (tvd->vdev_islog) + metaslab_group_activate(mg); + } +} + +int +spa_offline_log(spa_t *spa) +{ + int error = 0; + + if ((error = dmu_objset_find(spa_name(spa), zil_vdev_offline, + NULL, DS_FIND_CHILDREN)) == 0) { + + /* + * We successfully offlined the log device, sync out the + * current txg so that the "stubby" block can be removed + * by zil_sync(). + */ + txg_wait_synced(spa->spa_dsl_pool, 0); + } + return (error); +} + +static void +spa_aux_check_removed(spa_aux_vdev_t *sav) +{ + for (int i = 0; i < sav->sav_count; i++) + spa_check_removed(sav->sav_vdevs[i]); +} + +void +spa_claim_notify(zio_t *zio) +{ + spa_t *spa = zio->io_spa; + + if (zio->io_error) + return; + + mutex_enter(&spa->spa_props_lock); /* any mutex will do */ + if (spa->spa_claim_max_txg < zio->io_bp->blk_birth) + spa->spa_claim_max_txg = zio->io_bp->blk_birth; + mutex_exit(&spa->spa_props_lock); +} + +typedef struct spa_load_error { + uint64_t sle_meta_count; + uint64_t sle_data_count; +} spa_load_error_t; + +static void +spa_load_verify_done(zio_t *zio) +{ + blkptr_t *bp = zio->io_bp; + spa_load_error_t *sle = zio->io_private; + dmu_object_type_t type = BP_GET_TYPE(bp); + int error = zio->io_error; + + if (error) { + if ((BP_GET_LEVEL(bp) != 0 || dmu_ot[type].ot_metadata) && + type != DMU_OT_INTENT_LOG) + atomic_add_64(&sle->sle_meta_count, 1); + else + atomic_add_64(&sle->sle_data_count, 1); + } + zio_data_buf_free(zio->io_data, zio->io_size); +} + +/*ARGSUSED*/ +static int +spa_load_verify_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, + arc_buf_t *pbuf, const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) +{ + if (bp != NULL) { + zio_t *rio = arg; + size_t size = BP_GET_PSIZE(bp); + void *data = zio_data_buf_alloc(size); + + zio_nowait(zio_read(rio, spa, bp, data, size, + spa_load_verify_done, rio->io_private, ZIO_PRIORITY_SCRUB, + ZIO_FLAG_SPECULATIVE | ZIO_FLAG_CANFAIL | + ZIO_FLAG_SCRUB | ZIO_FLAG_RAW, zb)); + } + return (0); +} + +static int +spa_load_verify(spa_t *spa) +{ + zio_t *rio; + spa_load_error_t sle = { 0 }; + zpool_rewind_policy_t policy; + boolean_t verify_ok = B_FALSE; + int error; + + zpool_get_rewind_policy(spa->spa_config, &policy); + + if (policy.zrp_request & ZPOOL_NEVER_REWIND) + return (0); + + rio = zio_root(spa, NULL, &sle, + ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); + + error = traverse_pool(spa, spa->spa_verify_min_txg, + TRAVERSE_PRE | TRAVERSE_PREFETCH, spa_load_verify_cb, rio); + + (void) zio_wait(rio); + + spa->spa_load_meta_errors = sle.sle_meta_count; + spa->spa_load_data_errors = sle.sle_data_count; + + if (!error && sle.sle_meta_count <= policy.zrp_maxmeta && + sle.sle_data_count <= policy.zrp_maxdata) { + verify_ok = B_TRUE; + spa->spa_load_txg = spa->spa_uberblock.ub_txg; + spa->spa_load_txg_ts = spa->spa_uberblock.ub_timestamp; + } else { + spa->spa_load_max_txg = spa->spa_uberblock.ub_txg; + } + + if (error) { + if (error != ENXIO && error != EIO) + error = EIO; + return (error); + } + + return (verify_ok ? 0 : EIO); +} + +/* + * Find a value in the pool props object. + */ +static void +spa_prop_find(spa_t *spa, zpool_prop_t prop, uint64_t *val) +{ + (void) zap_lookup(spa->spa_meta_objset, spa->spa_pool_props_object, + zpool_prop_to_name(prop), sizeof (uint64_t), 1, val); +} + +/* + * Find a value in the pool directory object. + */ +static int +spa_dir_prop(spa_t *spa, const char *name, uint64_t *val) +{ + return (zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, + name, sizeof (uint64_t), 1, val)); +} + +static int +spa_vdev_err(vdev_t *vdev, vdev_aux_t aux, int err) +{ + vdev_set_state(vdev, B_TRUE, VDEV_STATE_CANT_OPEN, aux); + return (err); +} + +/* + * Fix up config after a partly-completed split. This is done with the + * ZPOOL_CONFIG_SPLIT nvlist. Both the splitting pool and the split-off + * pool have that entry in their config, but only the splitting one contains + * a list of all the guids of the vdevs that are being split off. + * + * This function determines what to do with that list: either rejoin + * all the disks to the pool, or complete the splitting process. To attempt + * the rejoin, each disk that is offlined is marked online again, and + * we do a reopen() call. If the vdev label for every disk that was + * marked online indicates it was successfully split off (VDEV_AUX_SPLIT_POOL) + * then we call vdev_split() on each disk, and complete the split. + * + * Otherwise we leave the config alone, with all the vdevs in place in + * the original pool. + */ +static void +spa_try_repair(spa_t *spa, nvlist_t *config) +{ + uint_t extracted; + uint64_t *glist; + uint_t i, gcount; + nvlist_t *nvl; + vdev_t **vd; + boolean_t attempt_reopen; + + if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT, &nvl) != 0) + return; + + /* check that the config is complete */ + if (nvlist_lookup_uint64_array(nvl, ZPOOL_CONFIG_SPLIT_LIST, + &glist, &gcount) != 0) + return; + + vd = kmem_zalloc(gcount * sizeof (vdev_t *), KM_SLEEP); + + /* attempt to online all the vdevs & validate */ + attempt_reopen = B_TRUE; + for (i = 0; i < gcount; i++) { + if (glist[i] == 0) /* vdev is hole */ + continue; + + vd[i] = spa_lookup_by_guid(spa, glist[i], B_FALSE); + if (vd[i] == NULL) { + /* + * Don't bother attempting to reopen the disks; + * just do the split. + */ + attempt_reopen = B_FALSE; + } else { + /* attempt to re-online it */ + vd[i]->vdev_offline = B_FALSE; + } + } + + if (attempt_reopen) { + vdev_reopen(spa->spa_root_vdev); + + /* check each device to see what state it's in */ + for (extracted = 0, i = 0; i < gcount; i++) { + if (vd[i] != NULL && + vd[i]->vdev_stat.vs_aux != VDEV_AUX_SPLIT_POOL) + break; + ++extracted; + } + } + + /* + * If every disk has been moved to the new pool, or if we never + * even attempted to look at them, then we split them off for + * good. + */ + if (!attempt_reopen || gcount == extracted) { + for (i = 0; i < gcount; i++) + if (vd[i] != NULL) + vdev_split(vd[i]); + vdev_reopen(spa->spa_root_vdev); + } + + kmem_free(vd, gcount * sizeof (vdev_t *)); +} + +static int +spa_load(spa_t *spa, spa_load_state_t state, spa_import_type_t type, + boolean_t mosconfig) +{ + nvlist_t *config = spa->spa_config; + char *ereport = FM_EREPORT_ZFS_POOL; + int error; + uint64_t pool_guid; + nvlist_t *nvl; + + if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) + return (EINVAL); + + /* + * Versioning wasn't explicitly added to the label until later, so if + * it's not present treat it as the initial version. + */ + if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, + &spa->spa_ubsync.ub_version) != 0) + spa->spa_ubsync.ub_version = SPA_VERSION_INITIAL; + + (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, + &spa->spa_config_txg); + + if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && + spa_guid_exists(pool_guid, 0)) { + error = EEXIST; + } else { + spa->spa_load_guid = pool_guid; + + if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT, + &nvl) == 0) { + VERIFY(nvlist_dup(nvl, &spa->spa_config_splitting, + KM_SLEEP) == 0); + } + + error = spa_load_impl(spa, pool_guid, config, state, type, + mosconfig, &ereport); + } + + spa->spa_minref = refcount_count(&spa->spa_refcount); + if (error && error != EBADF) + zfs_ereport_post(ereport, spa, NULL, NULL, 0, 0); + spa->spa_load_state = error ? SPA_LOAD_ERROR : SPA_LOAD_NONE; + spa->spa_ena = 0; + + return (error); +} + /* * Load an existing storage pool, using the pool's builtin spa_config as a * source of configuration information. */ static int -spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) +spa_load_impl(spa_t *spa, uint64_t pool_guid, nvlist_t *config, + spa_load_state_t state, spa_import_type_t type, boolean_t mosconfig, + char **ereport) { int error = 0; nvlist_t *nvroot = NULL; vdev_t *rvd; uberblock_t *ub = &spa->spa_uberblock; uint64_t config_cache_txg = spa->spa_config_txg; - uint64_t pool_guid; - uint64_t version; - uint64_t autoreplace = 0; int orig_mode = spa->spa_mode; - char *ereport = FM_EREPORT_ZFS_POOL; + int parse; + uint64_t obj; /* * If this is an untrusted config, access the pool in read-only mode. @@ -1170,29 +1677,11 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) spa->spa_load_state = state; - if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || - nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { - error = EINVAL; - goto out; - } - - /* - * Versioning wasn't explicitly added to the label until later, so if - * it's not present treat it as the initial version. - */ - if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) - version = SPA_VERSION_INITIAL; - - (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, - &spa->spa_config_txg); - - if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && - spa_guid_exists(pool_guid, 0)) { - error = EEXIST; - goto out; - } + if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot)) + return (EINVAL); - spa->spa_load_guid = pool_guid; + parse = (type == SPA_IMPORT_EXISTING ? + VDEV_ALLOC_LOAD : VDEV_ALLOC_SPLIT); /* * Create "The Godfather" zio to hold all async IOs @@ -1206,15 +1695,17 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) * configuration requires knowing the version number. */ spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); - spa->spa_ubsync.ub_version = version; - error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); + error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, parse); spa_config_exit(spa, SCL_ALL, FTAG); if (error != 0) - goto out; + return (error); ASSERT(spa->spa_root_vdev == rvd); - ASSERT(spa_guid(spa) == pool_guid); + + if (type != SPA_IMPORT_ASSEMBLE) { + ASSERT(spa_guid(spa) == pool_guid); + } /* * Try to open all vdevs, loading each label in the process. @@ -1223,26 +1714,31 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) error = vdev_open(rvd); spa_config_exit(spa, SCL_ALL, FTAG); if (error != 0) - goto out; + return (error); /* * We need to validate the vdev labels against the configuration that * we have in hand, which is dependent on the setting of mosconfig. If * mosconfig is true then we're validating the vdev labels based on - * that config. Otherwise, we're validating against the cached config + * that config. Otherwise, we're validating against the cached config * (zpool.cache) that was read when we loaded the zfs module, and then * later we will recursively call spa_load() and validate against * the vdev config. + * + * If we're assembling a new pool that's been split off from an + * existing pool, the labels haven't yet been updated so we skip + * validation for now. */ - spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); - error = vdev_validate(rvd); - spa_config_exit(spa, SCL_ALL, FTAG); - if (error != 0) - goto out; + if (type != SPA_IMPORT_ASSEMBLE) { + spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); + error = vdev_validate(rvd); + spa_config_exit(spa, SCL_ALL, FTAG); - if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { - error = ENXIO; - goto out; + if (error != 0) + return (error); + + if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) + return (ENXIO); } /* @@ -1253,32 +1749,29 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) /* * If we weren't able to find a single valid uberblock, return failure. */ - if (ub->ub_txg == 0) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = ENXIO; - goto out; - } + if (ub->ub_txg == 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, ENXIO)); /* * If the pool is newer than the code, we can't open it. */ - if (ub->ub_version > SPA_VERSION) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_VERSION_NEWER); - error = ENOTSUP; - goto out; - } + if (ub->ub_version > SPA_VERSION) + return (spa_vdev_err(rvd, VDEV_AUX_VERSION_NEWER, ENOTSUP)); /* * If the vdev guid sum doesn't match the uberblock, we have an * incomplete configuration. */ - if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_BAD_GUID_SUM); - error = ENXIO; - goto out; + if (mosconfig && type != SPA_IMPORT_ASSEMBLE && + rvd->vdev_guid_sum != ub->ub_guid_sum) + return (spa_vdev_err(rvd, VDEV_AUX_BAD_GUID_SUM, ENXIO)); + + if (type != SPA_IMPORT_ASSEMBLE && spa->spa_config_splitting) { + spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); + spa_try_repair(spa, config); + spa_config_exit(spa, SCL_ALL, FTAG); + nvlist_free(spa->spa_config_splitting); + spa->spa_config_splitting = NULL; } /* @@ -1286,41 +1779,34 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) */ spa->spa_state = POOL_STATE_ACTIVE; spa->spa_ubsync = spa->spa_uberblock; - spa->spa_first_txg = spa_last_synced_txg(spa) + 1; + spa->spa_verify_min_txg = spa->spa_extreme_rewind ? + TXG_INITIAL - 1 : spa_last_synced_txg(spa) - TXG_DEFER_SIZE - 1; + spa->spa_first_txg = spa->spa_last_ubsync_txg ? + spa->spa_last_ubsync_txg : spa_last_synced_txg(spa) + 1; + spa->spa_claim_max_txg = spa->spa_first_txg; + spa->spa_prev_software_version = ub->ub_software_version; + error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); - if (error) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - goto out; - } + if (error) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; - if (zap_lookup(spa->spa_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, - sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + if (spa_dir_prop(spa, DMU_POOL_CONFIG, &spa->spa_config_object) != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); if (!mosconfig) { - nvlist_t *newconfig; uint64_t hostid; + nvlist_t *policy = NULL, *nvconfig; - if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + if (load_nvlist(spa, spa->spa_config_object, &nvconfig) != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); - if (!spa_is_root(spa) && nvlist_lookup_uint64(newconfig, + if (!spa_is_root(spa) && nvlist_lookup_uint64(nvconfig, ZPOOL_CONFIG_HOSTID, &hostid) == 0) { char *hostname; unsigned long myhostid = 0; - VERIFY(nvlist_lookup_string(newconfig, + VERIFY(nvlist_lookup_string(nvconfig, ZPOOL_CONFIG_HOSTNAME, &hostname) == 0); #ifdef _KERNEL @@ -1334,185 +1820,133 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) #endif /* _KERNEL */ if (hostid != 0 && myhostid != 0 && hostid != myhostid) { + nvlist_free(nvconfig); cmn_err(CE_WARN, "pool '%s' could not be " "loaded as it was last accessed by " "another system (host: %s hostid: 0x%lx). " "See: http://www.sun.com/msg/ZFS-8000-EY", spa_name(spa), hostname, (unsigned long)hostid); - error = EBADF; - goto out; + return (EBADF); } } + if (nvlist_lookup_nvlist(spa->spa_config, + ZPOOL_REWIND_POLICY, &policy) == 0) + VERIFY(nvlist_add_nvlist(nvconfig, + ZPOOL_REWIND_POLICY, policy) == 0); - spa_config_set(spa, newconfig); + spa_config_set(spa, nvconfig); spa_unload(spa); spa_deactivate(spa); spa_activate(spa, orig_mode); - return (spa_load(spa, newconfig, state, B_TRUE)); + return (spa_load(spa, state, SPA_IMPORT_EXISTING, B_TRUE)); } - if (zap_lookup(spa->spa_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, - sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + if (spa_dir_prop(spa, DMU_POOL_SYNC_BPOBJ, &obj) != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); + error = bpobj_open(&spa->spa_deferred_bpobj, spa->spa_meta_objset, obj); + if (error != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); /* * Load the bit that tells us to use the new accounting function * (raid-z deflation). If we have an older pool, this will not * be present. */ - error = zap_lookup(spa->spa_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, - sizeof (uint64_t), 1, &spa->spa_deflate); - if (error != 0 && error != ENOENT) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + error = spa_dir_prop(spa, DMU_POOL_DEFLATE, &spa->spa_deflate); + if (error != 0 && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); + + error = spa_dir_prop(spa, DMU_POOL_CREATION_VERSION, + &spa->spa_creation_version); + if (error != 0 && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); /* * Load the persistent error log. If we have an older pool, this will * not be present. */ - error = zap_lookup(spa->spa_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, - sizeof (uint64_t), 1, &spa->spa_errlog_last); - if (error != 0 && error != ENOENT) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + error = spa_dir_prop(spa, DMU_POOL_ERRLOG_LAST, &spa->spa_errlog_last); + if (error != 0 && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); - error = zap_lookup(spa->spa_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, - sizeof (uint64_t), 1, &spa->spa_errlog_scrub); - if (error != 0 && error != ENOENT) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + error = spa_dir_prop(spa, DMU_POOL_ERRLOG_SCRUB, + &spa->spa_errlog_scrub); + if (error != 0 && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); /* * Load the history object. If we have an older pool, this * will not be present. */ - error = zap_lookup(spa->spa_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, - sizeof (uint64_t), 1, &spa->spa_history); - if (error != 0 && error != ENOENT) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + error = spa_dir_prop(spa, DMU_POOL_HISTORY, &spa->spa_history); + if (error != 0 && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); + + /* + * If we're assembling the pool from the split-off vdevs of + * an existing pool, we don't want to attach the spares & cache + * devices. + */ /* * Load any hot spares for this pool. */ - error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares.sav_object); - if (error != 0 && error != ENOENT) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } - if (error == 0) { + error = spa_dir_prop(spa, DMU_POOL_SPARES, &spa->spa_spares.sav_object); + if (error != 0 && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); + if (error == 0 && type != SPA_IMPORT_ASSEMBLE) { ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); if (load_nvlist(spa, spa->spa_spares.sav_object, - &spa->spa_spares.sav_config) != 0) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + &spa->spa_spares.sav_config) != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); spa_load_spares(spa); spa_config_exit(spa, SCL_ALL, FTAG); + } else if (error == 0) { + spa->spa_spares.sav_sync = B_TRUE; } /* * Load any level 2 ARC devices for this pool. */ - error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_L2CACHE, sizeof (uint64_t), 1, + error = spa_dir_prop(spa, DMU_POOL_L2CACHE, &spa->spa_l2cache.sav_object); - if (error != 0 && error != ENOENT) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } - if (error == 0) { + if (error != 0 && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); + if (error == 0 && type != SPA_IMPORT_ASSEMBLE) { ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE); if (load_nvlist(spa, spa->spa_l2cache.sav_object, - &spa->spa_l2cache.sav_config) != 0) { - vdev_set_state(rvd, B_TRUE, - VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + &spa->spa_l2cache.sav_config) != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); spa_load_l2cache(spa); spa_config_exit(spa, SCL_ALL, FTAG); + } else if (error == 0) { + spa->spa_l2cache.sav_sync = B_TRUE; } - spa_load_log_state(spa); - - if (spa_check_logs(spa)) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_BAD_LOG); - error = ENXIO; - ereport = FM_EREPORT_ZFS_LOG_REPLAY; - goto out; - } - - spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); - error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, - DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object); - - if (error && error != ENOENT) { - vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_CORRUPT_DATA); - error = EIO; - goto out; - } + error = spa_dir_prop(spa, DMU_POOL_PROPS, &spa->spa_pool_props_object); + if (error && error != ENOENT) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); if (error == 0) { - (void) zap_lookup(spa->spa_meta_objset, - spa->spa_pool_props_object, - zpool_prop_to_name(ZPOOL_PROP_BOOTFS), - sizeof (uint64_t), 1, &spa->spa_bootfs); - (void) zap_lookup(spa->spa_meta_objset, - spa->spa_pool_props_object, - zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), - sizeof (uint64_t), 1, &autoreplace); - (void) zap_lookup(spa->spa_meta_objset, - spa->spa_pool_props_object, - zpool_prop_to_name(ZPOOL_PROP_DELEGATION), - sizeof (uint64_t), 1, &spa->spa_delegation); - (void) zap_lookup(spa->spa_meta_objset, - spa->spa_pool_props_object, - zpool_prop_to_name(ZPOOL_PROP_FAILUREMODE), - sizeof (uint64_t), 1, &spa->spa_failmode); - (void) zap_lookup(spa->spa_meta_objset, - spa->spa_pool_props_object, - zpool_prop_to_name(ZPOOL_PROP_AUTOEXPAND), - sizeof (uint64_t), 1, &spa->spa_autoexpand); + uint64_t autoreplace; + + spa_prop_find(spa, ZPOOL_PROP_BOOTFS, &spa->spa_bootfs); + spa_prop_find(spa, ZPOOL_PROP_AUTOREPLACE, &autoreplace); + spa_prop_find(spa, ZPOOL_PROP_DELEGATION, &spa->spa_delegation); + spa_prop_find(spa, ZPOOL_PROP_FAILUREMODE, &spa->spa_failmode); + spa_prop_find(spa, ZPOOL_PROP_AUTOEXPAND, &spa->spa_autoexpand); + spa_prop_find(spa, ZPOOL_PROP_DEDUPDITTO, + &spa->spa_dedup_ditto); + + spa->spa_autoreplace = (autoreplace != 0); } /* @@ -1522,8 +1956,18 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) * unopenable vdevs so that the normal autoreplace handler can take * over. */ - if (autoreplace && state != SPA_LOAD_TRYIMPORT) + if (spa->spa_autoreplace && state != SPA_LOAD_TRYIMPORT) { spa_check_removed(spa->spa_root_vdev); + /* + * For the import case, this is done in spa_import(), because + * at this point we're using the spare definitions from + * the MOS config, not necessarily from the userland config. + */ + if (state != SPA_LOAD_IMPORT) { + spa_aux_check_removed(&spa->spa_spares); + spa_aux_check_removed(&spa->spa_l2cache); + } + } /* * Load the vdev state for all toplevel vdevs. @@ -1541,12 +1985,48 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) * Check the state of the root vdev. If it can't be opened, it * indicates one or more toplevel vdevs are faulted. */ - if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { - error = ENXIO; - goto out; + if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) + return (ENXIO); + + /* + * Load the DDTs (dedup tables). + */ + error = ddt_load(spa); + if (error != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); + + spa_update_dspace(spa); + + if (state != SPA_LOAD_TRYIMPORT) { + error = spa_load_verify(spa); + if (error) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, + error)); } - if (spa_writeable(spa)) { + /* + * Load the intent log state and check log integrity. If we're + * assembling a pool from a split, the log is not transferred over. + */ + if (type != SPA_IMPORT_ASSEMBLE) { + nvlist_t *nvconfig; + + if (load_nvlist(spa, spa->spa_config_object, &nvconfig) != 0) + return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); + + VERIFY(nvlist_lookup_nvlist(nvconfig, ZPOOL_CONFIG_VDEV_TREE, + &nvroot) == 0); + spa_load_log_state(spa, nvroot); + nvlist_free(nvconfig); + + if (spa_check_logs(spa)) { + *ereport = FM_EREPORT_ZFS_LOG_REPLAY; + return (spa_vdev_err(rvd, VDEV_AUX_BAD_LOG, ENXIO)); + } + } + + if (spa_writeable(spa) && (state == SPA_LOAD_RECOVER || + spa->spa_load_max_txg == UINT64_MAX)) { dmu_tx_t *tx; int need_update = B_FALSE; @@ -1555,21 +2035,32 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) /* * Claim log blocks that haven't been committed yet. * This must all happen in a single txg. + * Note: spa_claim_max_txg is updated by spa_claim_notify(), + * invoked from zil_claim_log_block()'s i/o done callback. + * Price of rollback is that we abandon the log. */ + spa->spa_claiming = B_TRUE; + tx = dmu_tx_create_assigned(spa_get_dsl(spa), spa_first_txg(spa)); (void) dmu_objset_find(spa_name(spa), zil_claim, tx, DS_FIND_CHILDREN); dmu_tx_commit(tx); - spa->spa_log_state = SPA_LOG_GOOD; + spa->spa_claiming = B_FALSE; + + spa_set_log_state(spa, SPA_LOG_GOOD); spa->spa_sync_on = B_TRUE; txg_sync_start(spa->spa_dsl_pool); /* - * Wait for all claims to sync. + * Wait for all claims to sync. We sync up to the highest + * claimed log block birth time so that claimed log blocks + * don't appear to be from the future. spa_claim_max_txg + * will have been set for us by either zil_check_log_chain() + * (invoked from spa_check_logs()) or zil_claim() above. */ - txg_wait_synced(spa->spa_dsl_pool, 0); + txg_wait_synced(spa->spa_dsl_pool, spa->spa_claim_max_txg); /* * If the config cache is stale, or we have uninitialized @@ -1579,7 +2070,8 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) * in-core spa_config and update the disk labels. */ if (config_cache_txg != spa->spa_config_txg || - state == SPA_LOAD_IMPORT || spa->spa_load_verbatim) + state == SPA_LOAD_IMPORT || spa->spa_load_verbatim || + state == SPA_LOAD_RECOVER) need_update = B_TRUE; for (int c = 0; c < rvd->vdev_children; c++) @@ -1596,19 +2088,101 @@ spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) /* * Check all DTLs to see if anything needs resilvering. */ - if (vdev_resilver_needed(rvd, NULL, NULL)) + if (!dsl_scan_resilvering(spa->spa_dsl_pool) && + vdev_resilver_needed(rvd, NULL, NULL)) spa_async_request(spa, SPA_ASYNC_RESILVER); + + /* + * Delete any inconsistent datasets. + */ + (void) dmu_objset_find(spa_name(spa), + dsl_destroy_inconsistent, NULL, DS_FIND_CHILDREN); + + /* + * Clean up any stale temporary dataset userrefs. + */ + dsl_pool_clean_tmp_userrefs(spa->spa_dsl_pool); } - error = 0; -out: - spa->spa_minref = refcount_count(&spa->spa_refcount); - if (error && error != EBADF) - zfs_ereport_post(ereport, spa, NULL, NULL, 0, 0); - spa->spa_load_state = SPA_LOAD_NONE; - spa->spa_ena = 0; + return (0); +} - return (error); +static int +spa_load_retry(spa_t *spa, spa_load_state_t state, int mosconfig) +{ + spa_unload(spa); + spa_deactivate(spa); + + spa->spa_load_max_txg--; + + spa_activate(spa, spa_mode_global); + spa_async_suspend(spa); + + return (spa_load(spa, state, SPA_IMPORT_EXISTING, mosconfig)); +} + +static int +spa_load_best(spa_t *spa, spa_load_state_t state, int mosconfig, + uint64_t max_request, int rewind_flags) +{ + nvlist_t *config = NULL; + int load_error, rewind_error; + uint64_t safe_rewind_txg; + uint64_t min_txg; + + if (spa->spa_load_txg && state == SPA_LOAD_RECOVER) { + spa->spa_load_max_txg = spa->spa_load_txg; + spa_set_log_state(spa, SPA_LOG_CLEAR); + } else { + spa->spa_load_max_txg = max_request; + } + + load_error = rewind_error = spa_load(spa, state, SPA_IMPORT_EXISTING, + mosconfig); + if (load_error == 0) + return (0); + + if (spa->spa_root_vdev != NULL) + config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); + + spa->spa_last_ubsync_txg = spa->spa_uberblock.ub_txg; + spa->spa_last_ubsync_txg_ts = spa->spa_uberblock.ub_timestamp; + + if (rewind_flags & ZPOOL_NEVER_REWIND) { + nvlist_free(config); + return (load_error); + } + + /* Price of rolling back is discarding txgs, including log */ + if (state == SPA_LOAD_RECOVER) + spa_set_log_state(spa, SPA_LOG_CLEAR); + + spa->spa_load_max_txg = spa->spa_last_ubsync_txg; + safe_rewind_txg = spa->spa_last_ubsync_txg - TXG_DEFER_SIZE; + min_txg = (rewind_flags & ZPOOL_EXTREME_REWIND) ? + TXG_INITIAL : safe_rewind_txg; + + /* + * Continue as long as we're finding errors, we're still within + * the acceptable rewind range, and we're still finding uberblocks + */ + while (rewind_error && spa->spa_uberblock.ub_txg >= min_txg && + spa->spa_uberblock.ub_txg <= spa->spa_load_max_txg) { + if (spa->spa_load_max_txg < safe_rewind_txg) + spa->spa_extreme_rewind = B_TRUE; + rewind_error = spa_load_retry(spa, state, mosconfig); + } + + if (config) + spa_rewind_data_to_nvlist(spa, config); + + spa->spa_extreme_rewind = B_FALSE; + spa->spa_load_max_txg = UINT64_MAX; + + if (config && (rewind_error || state != SPA_LOAD_RECOVER)) + spa_config_set(spa, config); + + return (state == SPA_LOAD_RECOVER ? rewind_error : load_error); } /* @@ -1624,7 +2198,8 @@ out: * ambiguous state. */ static int -spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) +spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t *nvpolicy, + nvlist_t **config) { spa_t *spa; int error; @@ -1648,11 +2223,23 @@ spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) mutex_exit(&spa_namespace_lock); return (ENOENT); } + if (spa->spa_state == POOL_STATE_UNINITIALIZED) { + spa_load_state_t state = SPA_LOAD_OPEN; + zpool_rewind_policy_t policy; + + zpool_get_rewind_policy(nvpolicy ? nvpolicy : spa->spa_config, + &policy); + if (policy.zrp_request & ZPOOL_DO_REWIND) + state = SPA_LOAD_RECOVER; spa_activate(spa, spa_mode_global); - error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); + if (state != SPA_LOAD_RECOVER) + spa->spa_last_ubsync_txg = spa->spa_load_txg = 0; + + error = spa_load_best(spa, state, B_FALSE, policy.zrp_txg, + policy.zrp_request); if (error == EBADF) { /* @@ -1677,38 +2264,49 @@ spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) * information: the state of each vdev after the * attempted vdev_open(). Return this to the user. */ - if (config != NULL && spa->spa_root_vdev != NULL) - *config = spa_config_generate(spa, NULL, -1ULL, - B_TRUE); + if (config != NULL && spa->spa_config) + VERIFY(nvlist_dup(spa->spa_config, config, + KM_SLEEP) == 0); spa_unload(spa); spa_deactivate(spa); - spa->spa_last_open_failed = B_TRUE; + spa->spa_last_open_failed = error; if (locked) mutex_exit(&spa_namespace_lock); *spapp = NULL; return (error); - } else { - spa->spa_last_open_failed = B_FALSE; } + } spa_open_ref(spa, tag); - if (locked) - mutex_exit(&spa_namespace_lock); - - *spapp = spa; if (config != NULL) *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); + if (locked) { + spa->spa_last_open_failed = 0; + spa->spa_last_ubsync_txg = 0; + spa->spa_load_txg = 0; + mutex_exit(&spa_namespace_lock); + } + + *spapp = spa; + return (0); } int +spa_open_rewind(const char *name, spa_t **spapp, void *tag, nvlist_t *policy, + nvlist_t **config) +{ + return (spa_open_common(name, spapp, tag, policy, config)); +} + +int spa_open(const char *name, spa_t **spapp, void *tag) { - return (spa_open_common(name, spapp, tag, NULL)); + return (spa_open_common(name, spapp, tag, NULL, NULL)); } /* @@ -1779,7 +2377,7 @@ spa_add_spares(spa_t *spa, nvlist_t *config) if (spa_spare_exists(guid, &pool, NULL) && pool != 0ULL) { VERIFY(nvlist_lookup_uint64_array( - spares[i], ZPOOL_CONFIG_STATS, + spares[i], ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc) == 0); vs->vs_state = VDEV_STATE_CANT_OPEN; vs->vs_aux = VDEV_AUX_SPARED; @@ -1836,7 +2434,8 @@ spa_add_l2cache(spa_t *spa, nvlist_t *config) ASSERT(vd != NULL); VERIFY(nvlist_lookup_uint64_array(l2cache[i], - ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0); + ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc) + == 0); vdev_get_stats(vd, vs); } } @@ -1849,7 +2448,7 @@ spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) spa_t *spa; *config = NULL; - error = spa_open_common(name, &spa, FTAG, config); + error = spa_open_common(name, &spa, FTAG, NULL, config); if (spa != NULL) { /* @@ -2093,7 +2692,7 @@ spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, uint64_t txg = TXG_INITIAL; nvlist_t **spares, **l2cache; uint_t nspares, nl2cache; - uint64_t version; + uint64_t version, obj; /* * If this pool already exists, return failure. @@ -2109,11 +2708,9 @@ spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, */ (void) nvlist_lookup_string(props, zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); - spa = spa_add(pool, altroot); + spa = spa_add(pool, NULL, altroot); spa_activate(spa, spa_mode_global); - spa->spa_uberblock.ub_txg = txg - 1; - if (props && (error = spa_prop_validate(spa, props))) { spa_deactivate(spa); spa_remove(spa); @@ -2125,6 +2722,9 @@ spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, &version) != 0) version = SPA_VERSION; ASSERT(version <= SPA_VERSION); + + spa->spa_first_txg = txg; + spa->spa_uberblock.ub_txg = txg - 1; spa->spa_uberblock.ub_version = version; spa->spa_ubsync = spa->spa_uberblock; @@ -2200,6 +2800,13 @@ spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, spa->spa_dsl_pool = dp = dsl_pool_create(spa, zplprops, txg); spa->spa_meta_objset = dp->dp_meta_objset; + /* + * Create DDTs (dedup tables). + */ + ddt_create(spa); + + spa_update_dspace(spa); + tx = dmu_tx_create_assigned(dp, txg); /* @@ -2215,6 +2822,12 @@ spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, cmn_err(CE_PANIC, "failed to add pool config"); } + if (zap_add(spa->spa_meta_objset, + DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CREATION_VERSION, + sizeof (uint64_t), 1, &version, tx) != 0) { + cmn_err(CE_PANIC, "failed to add pool version"); + } + /* Newly created pools with the right version are always deflated. */ if (version >= SPA_VERSION_RAIDZ_DEFLATE) { spa->spa_deflate = TRUE; @@ -2226,20 +2839,20 @@ spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, } /* - * Create the deferred-free bplist object. Turn off compression + * Create the deferred-free bpobj. Turn off compression * because sync-to-convergence takes longer if the blocksize * keeps changing. */ - spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, - 1 << 14, tx); - dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, + obj = bpobj_alloc(spa->spa_meta_objset, 1 << 14, tx); + dmu_object_set_compress(spa->spa_meta_objset, obj, ZIO_COMPRESS_OFF, tx); - if (zap_add(spa->spa_meta_objset, - DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, - sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { - cmn_err(CE_PANIC, "failed to add bplist"); + DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPOBJ, + sizeof (uint64_t), 1, &obj, tx) != 0) { + cmn_err(CE_PANIC, "failed to add bpobj"); } + VERIFY3U(0, ==, bpobj_open(&spa->spa_deferred_bpobj, + spa->spa_meta_objset, obj)); /* * Create the pool's history object. @@ -2254,9 +2867,10 @@ spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE); spa->spa_autoexpand = zpool_prop_default_numeric(ZPOOL_PROP_AUTOEXPAND); + if (props != NULL) { spa_configfile_set(spa, props, B_FALSE); - spa_sync_props(spa, props, CRED(), tx); + spa_sync_props(spa, props, tx); } dmu_tx_commit(tx); @@ -2387,7 +3001,17 @@ spa_import_rootpool(char *devpath, char *devid) /* * Read the label from the boot device and generate a configuration. */ - if ((config = spa_generate_rootconf(devpath, devid, &guid)) == NULL) { + config = spa_generate_rootconf(devpath, devid, &guid); +#if defined(_OBP) && defined(_KERNEL) + if (config == NULL) { + if (strstr(devpath, "/iscsi/ssd") != NULL) { + /* iscsi boot */ + get_iscsi_bootpath_phy(devpath); + config = spa_generate_rootconf(devpath, devid, &guid); + } + } +#endif + if (config == NULL) { cmn_err(CE_NOTE, "Can not read the pool label from '%s'", devpath); return (EIO); @@ -2406,7 +3030,7 @@ spa_import_rootpool(char *devpath, char *devid) spa_remove(spa); } - spa = spa_add(pname, NULL); + spa = spa_add(pname, config, NULL); spa->spa_is_root = B_TRUE; spa->spa_load_verbatim = B_TRUE; @@ -2462,7 +3086,6 @@ spa_import_rootpool(char *devpath, char *devid) goto out; } - VERIFY(nvlist_dup(config, &spa->spa_config, 0) == 0); error = 0; spa_history_log_version(spa, LOG_POOL_IMPORT); out: @@ -2495,12 +3118,10 @@ spa_import_verbatim(const char *pool, nvlist_t *config, nvlist_t *props) (void) nvlist_lookup_string(props, zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); - spa = spa_add(pool, altroot); + spa = spa_add(pool, config, altroot); spa->spa_load_verbatim = B_TRUE; - VERIFY(nvlist_dup(config, &spa->spa_config, 0) == 0); - if (props != NULL) spa_configfile_set(spa, props, B_FALSE); @@ -2520,6 +3141,8 @@ spa_import(const char *pool, nvlist_t *config, nvlist_t *props) { spa_t *spa; char *altroot = NULL; + spa_load_state_t state = SPA_LOAD_IMPORT; + zpool_rewind_policy_t policy; int error; nvlist_t *nvroot; nvlist_t **spares, **l2cache; @@ -2529,17 +3152,21 @@ spa_import(const char *pool, nvlist_t *config, nvlist_t *props) * If a pool with this name exists, return failure. */ mutex_enter(&spa_namespace_lock); - if ((spa = spa_lookup(pool)) != NULL) { + if (spa_lookup(pool) != NULL) { mutex_exit(&spa_namespace_lock); return (EEXIST); } + zpool_get_rewind_policy(config, &policy); + if (policy.zrp_request & ZPOOL_DO_REWIND) + state = SPA_LOAD_RECOVER; + /* * Create and initialize the spa structure. */ (void) nvlist_lookup_string(props, zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); - spa = spa_add(pool, altroot); + spa = spa_add(pool, config, altroot); spa_activate(spa, spa_mode_global); /* @@ -2552,7 +3179,16 @@ spa_import(const char *pool, nvlist_t *config, nvlist_t *props) * because the user-supplied config is actually the one to trust when * doing an import. */ - error = spa_load(spa, config, SPA_LOAD_IMPORT, B_TRUE); + if (state != SPA_LOAD_RECOVER) + spa->spa_last_ubsync_txg = spa->spa_load_txg = 0; + error = spa_load_best(spa, state, B_TRUE, policy.zrp_txg, + policy.zrp_request); + + /* + * Propagate anything learned about failing or best txgs + * back to caller + */ + spa_rewind_data_to_nvlist(spa, config); spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); /* @@ -2592,8 +3228,6 @@ spa_import(const char *pool, nvlist_t *config, nvlist_t *props) return (error); } - spa_async_resume(spa); - /* * Override any spares and level 2 cache devices as specified by * the user, as these may have correct device names/devids, etc. @@ -2629,6 +3263,14 @@ spa_import(const char *pool, nvlist_t *config, nvlist_t *props) spa->spa_l2cache.sav_sync = B_TRUE; } + /* + * Check for any removed devices. + */ + if (spa->spa_autoreplace) { + spa_aux_check_removed(&spa->spa_spares); + spa_aux_check_removed(&spa->spa_l2cache); + } + if (spa_writeable(spa)) { /* * Update the config cache to include the newly-imported pool. @@ -2636,6 +3278,8 @@ spa_import(const char *pool, nvlist_t *config, nvlist_t *props) spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); } + spa_async_resume(spa); + /* * It's possible that the pool was expanded while it was exported. * We kick off an async task to handle this for us. @@ -2648,13 +3292,6 @@ spa_import(const char *pool, nvlist_t *config, nvlist_t *props) return (0); } - -/* - * This (illegal) pool name is used when temporarily importing a spa_t in order - * to get the vdev stats associated with the imported devices. - */ -#define TRYIMPORT_NAME "$import" - nvlist_t * spa_tryimport(nvlist_t *tryconfig) { @@ -2674,7 +3311,7 @@ spa_tryimport(nvlist_t *tryconfig) * Create and initialize the spa structure. */ mutex_enter(&spa_namespace_lock); - spa = spa_add(TRYIMPORT_NAME, NULL); + spa = spa_add(TRYIMPORT_NAME, tryconfig, NULL); spa_activate(spa, FREAD); /* @@ -2682,7 +3319,7 @@ spa_tryimport(nvlist_t *tryconfig) * Pass TRUE for mosconfig because the user-supplied config * is actually the one to trust when doing an import. */ - error = spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); + error = spa_load(spa, SPA_LOAD_TRYIMPORT, SPA_IMPORT_EXISTING, B_TRUE); /* * If 'tryconfig' was at least parsable, return the current config. @@ -2827,7 +3464,8 @@ spa_export_common(char *pool, int new_state, nvlist_t **oldconfig, if (new_state != POOL_STATE_UNINITIALIZED && !hardforce) { spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); spa->spa_state = new_state; - spa->spa_final_txg = spa_last_synced_txg(spa) + 1; + spa->spa_final_txg = spa_last_synced_txg(spa) + + TXG_DEFER_SIZE + 1; vdev_config_dirty(spa->spa_root_vdev); spa_config_exit(spa, SCL_ALL, FTAG); } @@ -2897,7 +3535,7 @@ spa_reset(char *pool) int spa_vdev_add(spa_t *spa, nvlist_t *nvroot) { - uint64_t txg; + uint64_t txg, id; int error; vdev_t *rvd = spa->spa_root_vdev; vdev_t *vd, *tvd; @@ -2938,9 +3576,19 @@ spa_vdev_add(spa_t *spa, nvlist_t *nvroot) * Transfer each new top-level vdev from vd to rvd. */ for (int c = 0; c < vd->vdev_children; c++) { + + /* + * Set the vdev id to the first hole, if one exists. + */ + for (id = 0; id < rvd->vdev_children; id++) { + if (rvd->vdev_child[id]->vdev_ishole) { + vdev_free(rvd->vdev_child[id]); + break; + } + } tvd = vd->vdev_child[c]; vdev_remove_child(vd, tvd); - tvd->vdev_id = rvd->vdev_children; + tvd->vdev_id = id; vdev_add_child(rvd, tvd); vdev_config_dirty(tvd); } @@ -2997,7 +3645,7 @@ spa_vdev_add(spa_t *spa, nvlist_t *nvroot) int spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) { - uint64_t txg, open_txg; + uint64_t txg, dtl_max_txg; vdev_t *rvd = spa->spa_root_vdev; vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; vdev_ops_t *pvops; @@ -3123,6 +3771,7 @@ spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) */ vdev_remove_child(newrootvd, newvd); newvd->vdev_id = pvd->vdev_children; + newvd->vdev_crtxg = oldvd->vdev_crtxg; vdev_add_child(pvd, newvd); tvd = newvd->vdev_top; @@ -3132,13 +3781,14 @@ spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) vdev_config_dirty(tvd); /* - * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate - * upward when spa_vdev_exit() calls vdev_dtl_reassess(). + * Set newvd's DTL to [TXG_INITIAL, dtl_max_txg) so that we account + * for any dmu_sync-ed blocks. It will propagate upward when + * spa_vdev_exit() calls vdev_dtl_reassess(). */ - open_txg = txg + TXG_CONCURRENT_STATES - 1; + dtl_max_txg = txg + TXG_CONCURRENT_STATES; - vdev_dtl_dirty(newvd, DTL_MISSING, - TXG_INITIAL, open_txg - TXG_INITIAL + 1); + vdev_dtl_dirty(newvd, DTL_MISSING, TXG_INITIAL, + dtl_max_txg - TXG_INITIAL); if (newvd->vdev_isspare) { spa_spare_activate(newvd); @@ -3154,10 +3804,18 @@ spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) */ vdev_dirty(tvd, VDD_DTL, newvd, txg); - (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); + /* + * Restart the resilver + */ + dsl_resilver_restart(spa->spa_dsl_pool, dtl_max_txg); - spa_history_internal_log(LOG_POOL_VDEV_ATTACH, spa, NULL, - CRED(), "%s vdev=%s %s vdev=%s", + /* + * Commit the config + */ + (void) spa_vdev_exit(spa, newrootvd, dtl_max_txg, 0); + + spa_history_log_internal(LOG_POOL_VDEV_ATTACH, spa, NULL, + "%s vdev=%s %s vdev=%s", replacing && newvd_isspare ? "spare in" : replacing ? "replace" : "attach", newvdpath, replacing ? "for" : "to", oldvdpath); @@ -3165,11 +3823,6 @@ spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) spa_strfree(oldvdpath); spa_strfree(newvdpath); - /* - * Kick off a resilver to update newvd. - */ - VERIFY3U(spa_scrub(spa, POOL_SCRUB_RESILVER), ==, 0); - return (0); } @@ -3188,6 +3841,7 @@ spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done) boolean_t unspare = B_FALSE; uint64_t unspare_guid; size_t len; + char *vdpath; txg = spa_vdev_enter(spa); @@ -3354,6 +4008,7 @@ spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done) * But first make sure we're not on any *other* txg's DTL list, to * prevent vd from being accessed after it's freed. */ + vdpath = spa_strdup(vd->vdev_path); for (int t = 0; t < TXG_SIZE; t++) (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); vd->vdev_detached = B_TRUE; @@ -3363,6 +4018,10 @@ spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done) error = spa_vdev_exit(spa, vd, txg, 0); + spa_history_log_internal(LOG_POOL_VDEV_DETACH, spa, NULL, + "vdev=%s", vdpath); + spa_strfree(vdpath); + /* * If this was the removal of the original device in a hot spare vdev, * then we want to go through and remove the device from the hot spare @@ -3379,7 +4038,8 @@ spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done) continue; spa_open_ref(spa, FTAG); mutex_exit(&spa_namespace_lock); - (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); + (void) spa_vdev_remove(spa, unspare_guid, + B_TRUE); mutex_enter(&spa_namespace_lock); spa_close(spa, FTAG); } @@ -3389,6 +4049,289 @@ spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done) return (error); } +/* + * Split a set of devices from their mirrors, and create a new pool from them. + */ +int +spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config, + nvlist_t *props, boolean_t exp) +{ + int error = 0; + uint64_t txg, *glist; + spa_t *newspa; + uint_t c, children, lastlog; + nvlist_t **child, *nvl, *tmp; + dmu_tx_t *tx; + char *altroot = NULL; + vdev_t *rvd, **vml = NULL; /* vdev modify list */ + boolean_t activate_slog; + + if (!spa_writeable(spa)) + return (EROFS); + + txg = spa_vdev_enter(spa); + + /* clear the log and flush everything up to now */ + activate_slog = spa_passivate_log(spa); + (void) spa_vdev_config_exit(spa, NULL, txg, 0, FTAG); + error = spa_offline_log(spa); + txg = spa_vdev_config_enter(spa); + + if (activate_slog) + spa_activate_log(spa); + + if (error != 0) + return (spa_vdev_exit(spa, NULL, txg, error)); + + /* check new spa name before going any further */ + if (spa_lookup(newname) != NULL) + return (spa_vdev_exit(spa, NULL, txg, EEXIST)); + + /* + * scan through all the children to ensure they're all mirrors + */ + if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvl) != 0 || + nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_CHILDREN, &child, + &children) != 0) + return (spa_vdev_exit(spa, NULL, txg, EINVAL)); + + /* first, check to ensure we've got the right child count */ + rvd = spa->spa_root_vdev; + lastlog = 0; + for (c = 0; c < rvd->vdev_children; c++) { + vdev_t *vd = rvd->vdev_child[c]; + + /* don't count the holes & logs as children */ + if (vd->vdev_islog || vd->vdev_ishole) { + if (lastlog == 0) + lastlog = c; + continue; + } + + lastlog = 0; + } + if (children != (lastlog != 0 ? lastlog : rvd->vdev_children)) + return (spa_vdev_exit(spa, NULL, txg, EINVAL)); + + /* next, ensure no spare or cache devices are part of the split */ + if (nvlist_lookup_nvlist(nvl, ZPOOL_CONFIG_SPARES, &tmp) == 0 || + nvlist_lookup_nvlist(nvl, ZPOOL_CONFIG_L2CACHE, &tmp) == 0) + return (spa_vdev_exit(spa, NULL, txg, EINVAL)); + + vml = kmem_zalloc(children * sizeof (vdev_t *), KM_SLEEP); + glist = kmem_zalloc(children * sizeof (uint64_t), KM_SLEEP); + + /* then, loop over each vdev and validate it */ + for (c = 0; c < children; c++) { + uint64_t is_hole = 0; + + (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE, + &is_hole); + + if (is_hole != 0) { + if (spa->spa_root_vdev->vdev_child[c]->vdev_ishole || + spa->spa_root_vdev->vdev_child[c]->vdev_islog) { + continue; + } else { + error = EINVAL; + break; + } + } + + /* which disk is going to be split? */ + if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_GUID, + &glist[c]) != 0) { + error = EINVAL; + break; + } + + /* look it up in the spa */ + vml[c] = spa_lookup_by_guid(spa, glist[c], B_FALSE); + if (vml[c] == NULL) { + error = ENODEV; + break; + } + + /* make sure there's nothing stopping the split */ + if (vml[c]->vdev_parent->vdev_ops != &vdev_mirror_ops || + vml[c]->vdev_islog || + vml[c]->vdev_ishole || + vml[c]->vdev_isspare || + vml[c]->vdev_isl2cache || + !vdev_writeable(vml[c]) || + vml[c]->vdev_children != 0 || + vml[c]->vdev_state != VDEV_STATE_HEALTHY || + c != spa->spa_root_vdev->vdev_child[c]->vdev_id) { + error = EINVAL; + break; + } + + if (vdev_dtl_required(vml[c])) { + error = EBUSY; + break; + } + + /* we need certain info from the top level */ + VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_METASLAB_ARRAY, + vml[c]->vdev_top->vdev_ms_array) == 0); + VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_METASLAB_SHIFT, + vml[c]->vdev_top->vdev_ms_shift) == 0); + VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_ASIZE, + vml[c]->vdev_top->vdev_asize) == 0); + VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_ASHIFT, + vml[c]->vdev_top->vdev_ashift) == 0); + } + + if (error != 0) { + kmem_free(vml, children * sizeof (vdev_t *)); + kmem_free(glist, children * sizeof (uint64_t)); + return (spa_vdev_exit(spa, NULL, txg, error)); + } + + /* stop writers from using the disks */ + for (c = 0; c < children; c++) { + if (vml[c] != NULL) + vml[c]->vdev_offline = B_TRUE; + } + vdev_reopen(spa->spa_root_vdev); + + /* + * Temporarily record the splitting vdevs in the spa config. This + * will disappear once the config is regenerated. + */ + VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); + VERIFY(nvlist_add_uint64_array(nvl, ZPOOL_CONFIG_SPLIT_LIST, + glist, children) == 0); + kmem_free(glist, children * sizeof (uint64_t)); + + mutex_enter(&spa->spa_props_lock); + VERIFY(nvlist_add_nvlist(spa->spa_config, ZPOOL_CONFIG_SPLIT, + nvl) == 0); + mutex_exit(&spa->spa_props_lock); + spa->spa_config_splitting = nvl; + vdev_config_dirty(spa->spa_root_vdev); + + /* configure and create the new pool */ + VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, newname) == 0); + VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, + exp ? POOL_STATE_EXPORTED : POOL_STATE_ACTIVE) == 0); + VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, + spa_version(spa)) == 0); + VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, + spa->spa_config_txg) == 0); + VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID, + spa_generate_guid(NULL)) == 0); + (void) nvlist_lookup_string(props, + zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); + + /* add the new pool to the namespace */ + newspa = spa_add(newname, config, altroot); + newspa->spa_config_txg = spa->spa_config_txg; + spa_set_log_state(newspa, SPA_LOG_CLEAR); + + /* release the spa config lock, retaining the namespace lock */ + spa_vdev_config_exit(spa, NULL, txg, 0, FTAG); + + if (zio_injection_enabled) + zio_handle_panic_injection(spa, FTAG, 1); + + spa_activate(newspa, spa_mode_global); + spa_async_suspend(newspa); + + /* create the new pool from the disks of the original pool */ + error = spa_load(newspa, SPA_LOAD_IMPORT, SPA_IMPORT_ASSEMBLE, B_TRUE); + if (error) + goto out; + + /* if that worked, generate a real config for the new pool */ + if (newspa->spa_root_vdev != NULL) { + VERIFY(nvlist_alloc(&newspa->spa_config_splitting, + NV_UNIQUE_NAME, KM_SLEEP) == 0); + VERIFY(nvlist_add_uint64(newspa->spa_config_splitting, + ZPOOL_CONFIG_SPLIT_GUID, spa_guid(spa)) == 0); + spa_config_set(newspa, spa_config_generate(newspa, NULL, -1ULL, + B_TRUE)); + } + + /* set the props */ + if (props != NULL) { + spa_configfile_set(newspa, props, B_FALSE); + error = spa_prop_set(newspa, props); + if (error) + goto out; + } + + /* flush everything */ + txg = spa_vdev_config_enter(newspa); + vdev_config_dirty(newspa->spa_root_vdev); + (void) spa_vdev_config_exit(newspa, NULL, txg, 0, FTAG); + + if (zio_injection_enabled) + zio_handle_panic_injection(spa, FTAG, 2); + + spa_async_resume(newspa); + + /* finally, update the original pool's config */ + txg = spa_vdev_config_enter(spa); + tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); + error = dmu_tx_assign(tx, TXG_WAIT); + if (error != 0) + dmu_tx_abort(tx); + for (c = 0; c < children; c++) { + if (vml[c] != NULL) { + vdev_split(vml[c]); + if (error == 0) + spa_history_log_internal(LOG_POOL_VDEV_DETACH, + spa, tx, "vdev=%s", + vml[c]->vdev_path); + vdev_free(vml[c]); + } + } + vdev_config_dirty(spa->spa_root_vdev); + spa->spa_config_splitting = NULL; + nvlist_free(nvl); + if (error == 0) + dmu_tx_commit(tx); + (void) spa_vdev_exit(spa, NULL, txg, 0); + + if (zio_injection_enabled) + zio_handle_panic_injection(spa, FTAG, 3); + + /* split is complete; log a history record */ + spa_history_log_internal(LOG_POOL_SPLIT, newspa, NULL, + "split new pool %s from pool %s", newname, spa_name(spa)); + + kmem_free(vml, children * sizeof (vdev_t *)); + + /* if we're not going to mount the filesystems in userland, export */ + if (exp) + error = spa_export_common(newname, POOL_STATE_EXPORTED, NULL, + B_FALSE, B_FALSE); + + return (error); + +out: + spa_unload(newspa); + spa_deactivate(newspa); + spa_remove(newspa); + + txg = spa_vdev_config_enter(spa); + + /* re-online all offlined disks */ + for (c = 0; c < children; c++) { + if (vml[c] != NULL) + vml[c]->vdev_offline = B_FALSE; + } + vdev_reopen(spa->spa_root_vdev); + + nvlist_free(spa->spa_config_splitting); + spa->spa_config_splitting = NULL; + (void) spa_vdev_exit(spa, NULL, txg, error); + + kmem_free(vml, children * sizeof (vdev_t *)); + return (error); +} + static nvlist_t * spa_nvlist_lookup_by_guid(nvlist_t **nvpp, int count, uint64_t target_guid) { @@ -3431,16 +4374,113 @@ spa_vdev_remove_aux(nvlist_t *config, char *name, nvlist_t **dev, int count, } /* + * Evacuate the device. + */ +static int +spa_vdev_remove_evacuate(spa_t *spa, vdev_t *vd) +{ + uint64_t txg; + int error = 0; + + ASSERT(MUTEX_HELD(&spa_namespace_lock)); + ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); + ASSERT(vd == vd->vdev_top); + + /* + * Evacuate the device. We don't hold the config lock as writer + * since we need to do I/O but we do keep the + * spa_namespace_lock held. Once this completes the device + * should no longer have any blocks allocated on it. + */ + if (vd->vdev_islog) { + if (vd->vdev_stat.vs_alloc != 0) + error = spa_offline_log(spa); + } else { + error = ENOTSUP; + } + + if (error) + return (error); + + /* + * The evacuation succeeded. Remove any remaining MOS metadata + * associated with this vdev, and wait for these changes to sync. + */ + ASSERT3U(vd->vdev_stat.vs_alloc, ==, 0); + txg = spa_vdev_config_enter(spa); + vd->vdev_removing = B_TRUE; + vdev_dirty(vd, 0, NULL, txg); + vdev_config_dirty(vd); + spa_vdev_config_exit(spa, NULL, txg, 0, FTAG); + + return (0); +} + +/* + * Complete the removal by cleaning up the namespace. + */ +static void +spa_vdev_remove_from_namespace(spa_t *spa, vdev_t *vd) +{ + vdev_t *rvd = spa->spa_root_vdev; + uint64_t id = vd->vdev_id; + boolean_t last_vdev = (id == (rvd->vdev_children - 1)); + + ASSERT(MUTEX_HELD(&spa_namespace_lock)); + ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); + ASSERT(vd == vd->vdev_top); + + /* + * Only remove any devices which are empty. + */ + if (vd->vdev_stat.vs_alloc != 0) + return; + + (void) vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); + + if (list_link_active(&vd->vdev_state_dirty_node)) + vdev_state_clean(vd); + if (list_link_active(&vd->vdev_config_dirty_node)) + vdev_config_clean(vd); + + vdev_free(vd); + + if (last_vdev) { + vdev_compact_children(rvd); + } else { + vd = vdev_alloc_common(spa, id, 0, &vdev_hole_ops); + vdev_add_child(rvd, vd); + } + vdev_config_dirty(rvd); + + /* + * Reassess the health of our root vdev. + */ + vdev_reopen(rvd); +} + +/* + * Remove a device from the pool - + * + * Removing a device from the vdev namespace requires several steps + * and can take a significant amount of time. As a result we use + * the spa_vdev_config_[enter/exit] functions which allow us to + * grab and release the spa_config_lock while still holding the namespace + * lock. During each step the configuration is synced out. + */ + +/* * Remove a device from the pool. Currently, this supports removing only hot - * spares and level 2 ARC devices. + * spares, slogs, and level 2 ARC devices. */ int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) { vdev_t *vd; + metaslab_group_t *mg; nvlist_t **spares, **l2cache, *nv; - uint_t nspares, nl2cache; uint64_t txg = 0; + uint_t nspares, nl2cache; int error = 0; boolean_t locked = MUTEX_HELD(&spa_namespace_lock); @@ -3476,6 +4516,49 @@ spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache, nv); spa_load_l2cache(spa); spa->spa_l2cache.sav_sync = B_TRUE; + } else if (vd != NULL && vd->vdev_islog) { + ASSERT(!locked); + ASSERT(vd == vd->vdev_top); + + /* + * XXX - Once we have bp-rewrite this should + * become the common case. + */ + + mg = vd->vdev_mg; + + /* + * Stop allocating from this vdev. + */ + metaslab_group_passivate(mg); + + /* + * Wait for the youngest allocations and frees to sync, + * and then wait for the deferral of those frees to finish. + */ + spa_vdev_config_exit(spa, NULL, + txg + TXG_CONCURRENT_STATES + TXG_DEFER_SIZE, 0, FTAG); + + /* + * Attempt to evacuate the vdev. + */ + error = spa_vdev_remove_evacuate(spa, vd); + + txg = spa_vdev_config_enter(spa); + + /* + * If we couldn't evacuate the vdev, unwind. + */ + if (error) { + metaslab_group_activate(mg); + return (spa_vdev_exit(spa, NULL, txg, error)); + } + + /* + * Clean up the vdev namespace. + */ + spa_vdev_remove_from_namespace(spa, vd); + } else if (vd != NULL) { /* * Normal vdevs cannot be removed (yet). @@ -3517,6 +4600,7 @@ spa_vdev_resilver_done_hunt(vdev_t *vd) newvd = vd->vdev_child[1]; if (vdev_dtl_empty(newvd, DTL_MISSING) && + vdev_dtl_empty(newvd, DTL_OUTAGE) && !vdev_dtl_required(oldvd)) return (oldvd); } @@ -3530,6 +4614,7 @@ spa_vdev_resilver_done_hunt(vdev_t *vd) if (newvd->vdev_unspare && vdev_dtl_empty(newvd, DTL_MISSING) && + vdev_dtl_empty(newvd, DTL_OUTAGE) && !vdev_dtl_required(oldvd)) { newvd->vdev_unspare = 0; return (oldvd); @@ -3576,36 +4661,41 @@ spa_vdev_resilver_done(spa_t *spa) } /* - * Update the stored path or FRU for this vdev. Dirty the vdev configuration, - * relying on spa_vdev_enter/exit() to synchronize the labels and cache. + * Update the stored path or FRU for this vdev. */ int spa_vdev_set_common(spa_t *spa, uint64_t guid, const char *value, boolean_t ispath) { vdev_t *vd; - uint64_t txg; + boolean_t sync = B_FALSE; - txg = spa_vdev_enter(spa); + spa_vdev_state_enter(spa, SCL_ALL); if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) - return (spa_vdev_exit(spa, NULL, txg, ENOENT)); + return (spa_vdev_state_exit(spa, NULL, ENOENT)); if (!vd->vdev_ops->vdev_op_leaf) - return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); + return (spa_vdev_state_exit(spa, NULL, ENOTSUP)); if (ispath) { - spa_strfree(vd->vdev_path); - vd->vdev_path = spa_strdup(value); + if (strcmp(value, vd->vdev_path) != 0) { + spa_strfree(vd->vdev_path); + vd->vdev_path = spa_strdup(value); + sync = B_TRUE; + } } else { - if (vd->vdev_fru != NULL) + if (vd->vdev_fru == NULL) { + vd->vdev_fru = spa_strdup(value); + sync = B_TRUE; + } else if (strcmp(value, vd->vdev_fru) != 0) { spa_strfree(vd->vdev_fru); - vd->vdev_fru = spa_strdup(value); + vd->vdev_fru = spa_strdup(value); + sync = B_TRUE; + } } - vdev_config_dirty(vd->vdev_top); - - return (spa_vdev_exit(spa, NULL, txg, 0)); + return (spa_vdev_state_exit(spa, sync ? vd : NULL, 0)); } int @@ -3622,40 +4712,38 @@ spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru) /* * ========================================================================== - * SPA Scrubbing + * SPA Scanning * ========================================================================== */ int -spa_scrub(spa_t *spa, pool_scrub_type_t type) +spa_scan_stop(spa_t *spa) +{ + ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); + if (dsl_scan_resilvering(spa->spa_dsl_pool)) + return (EBUSY); + return (dsl_scan_cancel(spa->spa_dsl_pool)); +} + +int +spa_scan(spa_t *spa, pool_scan_func_t func) { ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); - if ((uint_t)type >= POOL_SCRUB_TYPES) + if (func >= POOL_SCAN_FUNCS || func == POOL_SCAN_NONE) return (ENOTSUP); /* * If a resilver was requested, but there is no DTL on a * writeable leaf device, we have nothing to do. */ - if (type == POOL_SCRUB_RESILVER && + if (func == POOL_SCAN_RESILVER && !vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); return (0); } - if (type == POOL_SCRUB_EVERYTHING && - spa->spa_dsl_pool->dp_scrub_func != SCRUB_FUNC_NONE && - spa->spa_dsl_pool->dp_scrub_isresilver) - return (EBUSY); - - if (type == POOL_SCRUB_EVERYTHING || type == POOL_SCRUB_RESILVER) { - return (dsl_pool_scrub_clean(spa->spa_dsl_pool)); - } else if (type == POOL_SCRUB_NONE) { - return (dsl_pool_scrub_cancel(spa->spa_dsl_pool)); - } else { - return (EINVAL); - } + return (dsl_scan(spa->spa_dsl_pool, func)); } /* @@ -3668,9 +4756,20 @@ static void spa_async_remove(spa_t *spa, vdev_t *vd) { if (vd->vdev_remove_wanted) { - vd->vdev_remove_wanted = 0; + vd->vdev_remove_wanted = B_FALSE; + vd->vdev_delayed_close = B_FALSE; vdev_set_state(vd, B_FALSE, VDEV_STATE_REMOVED, VDEV_AUX_NONE); - vdev_clear(spa, vd); + + /* + * We want to clear the stats, but we don't want to do a full + * vdev_clear() as that will cause us to throw away + * degraded/faulted state as well as attempt to reopen the + * device, all of which is a waste. + */ + vd->vdev_stat.vs_read_errors = 0; + vd->vdev_stat.vs_write_errors = 0; + vd->vdev_stat.vs_checksum_errors = 0; + vdev_state_dirty(vd->vdev_top); } @@ -3682,7 +4781,7 @@ static void spa_async_probe(spa_t *spa, vdev_t *vd) { if (vd->vdev_probe_wanted) { - vd->vdev_probe_wanted = 0; + vd->vdev_probe_wanted = B_FALSE; vdev_reopen(vd); /* vdev_open() does the actual probe */ } @@ -3737,24 +4836,23 @@ spa_async_thread(spa_t *spa) * See if the config needs to be updated. */ if (tasks & SPA_ASYNC_CONFIG_UPDATE) { - uint64_t oldsz, space_update; + uint64_t old_space, new_space; mutex_enter(&spa_namespace_lock); - oldsz = spa_get_space(spa); + old_space = metaslab_class_get_space(spa_normal_class(spa)); spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); - space_update = spa_get_space(spa) - oldsz; + new_space = metaslab_class_get_space(spa_normal_class(spa)); mutex_exit(&spa_namespace_lock); /* * If the pool grew as a result of the config update, * then log an internal history event. */ - if (space_update) { - spa_history_internal_log(LOG_POOL_VDEV_ONLINE, - spa, NULL, CRED(), + if (new_space != old_space) { + spa_history_log_internal(LOG_POOL_VDEV_ONLINE, + spa, NULL, "pool '%s' size: %llu(+%llu)", - spa_name(spa), spa_get_space(spa), - space_update); + spa_name(spa), new_space, new_space - old_space); } } @@ -3762,7 +4860,7 @@ spa_async_thread(spa_t *spa) * See if any devices need to be marked REMOVED. */ if (tasks & SPA_ASYNC_REMOVE) { - spa_vdev_state_enter(spa); + spa_vdev_state_enter(spa, SCL_NONE); spa_async_remove(spa, spa->spa_root_vdev); for (int i = 0; i < spa->spa_l2cache.sav_count; i++) spa_async_remove(spa, spa->spa_l2cache.sav_vdevs[i]); @@ -3781,7 +4879,7 @@ spa_async_thread(spa_t *spa) * See if any devices need to be probed. */ if (tasks & SPA_ASYNC_PROBE) { - spa_vdev_state_enter(spa); + spa_vdev_state_enter(spa, SCL_NONE); spa_async_probe(spa, spa->spa_root_vdev); (void) spa_vdev_state_exit(spa, NULL, 0); } @@ -3796,7 +4894,7 @@ spa_async_thread(spa_t *spa) * Kick off a resilver. */ if (tasks & SPA_ASYNC_RESILVER) - VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER) == 0); + dsl_resilver_restart(spa->spa_dsl_pool, 0); /* * Let the world know that we're done. @@ -3842,6 +4940,7 @@ spa_async_dispatch(spa_t *spa) void spa_async_request(spa_t *spa, int task) { + zfs_dbgmsg("spa=%s async request task=%u", spa->spa_name, task); mutex_enter(&spa->spa_async_lock); spa->spa_async_tasks |= task; mutex_exit(&spa->spa_async_lock); @@ -3853,37 +4952,22 @@ spa_async_request(spa_t *spa, int task) * ========================================================================== */ -static void -spa_sync_deferred_frees(spa_t *spa, uint64_t txg) +static int +bpobj_enqueue_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) { - bplist_t *bpl = &spa->spa_sync_bplist; - dmu_tx_t *tx; - blkptr_t blk; - uint64_t itor = 0; - zio_t *zio; - int error; - uint8_t c = 1; - - zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL); - - while (bplist_iterate(bpl, &itor, &blk) == 0) { - ASSERT(blk.blk_birth < txg); - zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL, - ZIO_FLAG_MUSTSUCCEED)); - } - - error = zio_wait(zio); - ASSERT3U(error, ==, 0); + bpobj_t *bpo = arg; + bpobj_enqueue(bpo, bp, tx); + return (0); +} - tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); - bplist_vacate(bpl, tx); +static int +spa_free_sync_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) +{ + zio_t *zio = arg; - /* - * Pre-dirty the first block so we sync to convergence faster. - * (Usually only the first block is needed.) - */ - dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); - dmu_tx_commit(tx); + zio_nowait(zio_free_sync(zio, zio->io_spa, dmu_tx_get_txg(tx), bp, + zio->io_flags)); + return (0); } static void @@ -3950,7 +5034,7 @@ spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, list = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); for (i = 0; i < sav->sav_count; i++) list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], - B_FALSE, B_FALSE, B_TRUE); + B_FALSE, VDEV_CONFIG_L2CACHE); VERIFY(nvlist_add_nvlist_array(nvroot, config, list, sav->sav_count) == 0); for (i = 0; i < sav->sav_count; i++) @@ -3990,7 +5074,7 @@ spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) * Set zpool properties. */ static void -spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +spa_sync_props(void *arg1, void *arg2, dmu_tx_t *tx) { spa_t *spa = arg1; objset_t *mos = spa->spa_meta_objset; @@ -4041,8 +5125,6 @@ spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) * Set pool property values in the poolprops mos object. */ if (spa->spa_pool_props_object == 0) { - objset_t *mos = spa->spa_meta_objset; - VERIFY((spa->spa_pool_props_object = zap_create(mos, DMU_OT_POOL_PROPS, DMU_OT_NONE, 0, tx)) > 0); @@ -4091,7 +5173,12 @@ spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) break; case ZPOOL_PROP_AUTOEXPAND: spa->spa_autoexpand = intval; - spa_async_request(spa, SPA_ASYNC_AUTOEXPAND); + if (tx->tx_txg != TXG_INITIAL) + spa_async_request(spa, + SPA_ASYNC_AUTOEXPAND); + break; + case ZPOOL_PROP_DEDUPDITTO: + spa->spa_dedup_ditto = intval; break; default: break; @@ -4101,8 +5188,8 @@ spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) /* log internal history if this is not a zpool create */ if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY && tx->tx_txg != TXG_INITIAL) { - spa_history_internal_log(LOG_POOL_PROPSET, - spa, tx, cr, "%s %lld %s", + spa_history_log_internal(LOG_POOL_PROPSET, + spa, tx, "%s %lld %s", nvpair_name(elem), intval, spa_name(spa)); } } @@ -4111,6 +5198,42 @@ spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) } /* + * Perform one-time upgrade on-disk changes. spa_version() does not + * reflect the new version this txg, so there must be no changes this + * txg to anything that the upgrade code depends on after it executes. + * Therefore this must be called after dsl_pool_sync() does the sync + * tasks. + */ +static void +spa_sync_upgrades(spa_t *spa, dmu_tx_t *tx) +{ + dsl_pool_t *dp = spa->spa_dsl_pool; + + ASSERT(spa->spa_sync_pass == 1); + + if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && + spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { + dsl_pool_create_origin(dp, tx); + + /* Keeping the origin open increases spa_minref */ + spa->spa_minref += 3; + } + + if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && + spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { + dsl_pool_upgrade_clones(dp, tx); + } + + if (spa->spa_ubsync.ub_version < SPA_VERSION_DIR_CLONES && + spa->spa_uberblock.ub_version >= SPA_VERSION_DIR_CLONES) { + dsl_pool_upgrade_dir_clones(dp, tx); + + /* Keeping the freedir open increases spa_minref */ + spa->spa_minref += 3; + } +} + +/* * Sync the specified transaction group. New blocks may be dirtied as * part of the process, so we iterate until it converges. */ @@ -4119,11 +5242,11 @@ spa_sync(spa_t *spa, uint64_t txg) { dsl_pool_t *dp = spa->spa_dsl_pool; objset_t *mos = spa->spa_meta_objset; - bplist_t *bpl = &spa->spa_sync_bplist; + bpobj_t *defer_bpo = &spa->spa_deferred_bpobj; + bplist_t *free_bpl = &spa->spa_free_bplist[txg & TXG_MASK]; vdev_t *rvd = spa->spa_root_vdev; vdev_t *vd; dmu_tx_t *tx; - int dirty_vdevs; int error; /* @@ -4158,8 +5281,6 @@ spa_sync(spa_t *spa, uint64_t txg) } spa_config_exit(spa, SCL_STATE, FTAG); - VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); - tx = dmu_tx_create_assigned(dp, txg); /* @@ -4183,34 +5304,29 @@ spa_sync(spa_t *spa, uint64_t txg) } } - if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && - spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { - dsl_pool_create_origin(dp, tx); - - /* Keeping the origin open increases spa_minref */ - spa->spa_minref += 3; - } - - if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && - spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { - dsl_pool_upgrade_clones(dp, tx); - } - /* - * If anything has changed in this txg, push the deferred frees - * from the previous txg. If not, leave them alone so that we - * don't generate work on an otherwise idle system. + * If anything has changed in this txg, or if someone is waiting + * for this txg to sync (eg, spa_vdev_remove()), push the + * deferred frees from the previous txg. If not, leave them + * alone so that we don't generate work on an otherwise idle + * system. */ if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || !txg_list_empty(&dp->dp_dirty_dirs, txg) || - !txg_list_empty(&dp->dp_sync_tasks, txg)) - spa_sync_deferred_frees(spa, txg); + !txg_list_empty(&dp->dp_sync_tasks, txg) || + ((dsl_scan_active(dp->dp_scan) || + txg_sync_waiting(dp)) && !spa_shutting_down(spa))) { + zio_t *zio = zio_root(spa, NULL, NULL, 0); + VERIFY3U(bpobj_iterate(defer_bpo, + spa_free_sync_cb, zio, tx), ==, 0); + VERIFY3U(zio_wait(zio), ==, 0); + } /* * Iterate to convergence. */ do { - spa->spa_sync_pass++; + int pass = ++spa->spa_sync_pass; spa_sync_config_object(spa, tx); spa_sync_aux_dev(spa, &spa->spa_spares, tx, @@ -4220,18 +5336,26 @@ spa_sync(spa_t *spa, uint64_t txg) spa_errlog_sync(spa, txg); dsl_pool_sync(dp, txg); - dirty_vdevs = 0; - while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { - vdev_sync(vd, txg); - dirty_vdevs++; + if (pass <= SYNC_PASS_DEFERRED_FREE) { + zio_t *zio = zio_root(spa, NULL, NULL, 0); + bplist_iterate(free_bpl, spa_free_sync_cb, + zio, tx); + VERIFY(zio_wait(zio) == 0); + } else { + bplist_iterate(free_bpl, bpobj_enqueue_cb, + defer_bpo, tx); } - bplist_sync(bpl, tx); - } while (dirty_vdevs); + ddt_sync(spa, txg); + dsl_scan_sync(dp, tx); + + while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) + vdev_sync(vd, txg); - bplist_close(bpl); + if (pass == 1) + spa_sync_upgrades(spa, tx); - dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); + } while (dmu_objset_is_dirty(mos, txg)); /* * Rewrite the vdev configuration (which includes the uberblock) @@ -4302,10 +5426,7 @@ spa_sync(spa_t *spa, uint64_t txg) spa->spa_ubsync = spa->spa_uberblock; - /* - * Clean up the ZIL records for the synced txg. - */ - dsl_pool_zil_clean(dp); + dsl_pool_sync_done(dp, txg); /* * Update usable space statistics. @@ -4313,6 +5434,8 @@ spa_sync(spa_t *spa, uint64_t txg) while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) vdev_sync_done(vd, txg); + spa_update_dspace(spa); + /* * It had better be the case that we didn't dirty anything * since vdev_config_sync(). @@ -4320,10 +5443,13 @@ spa_sync(spa_t *spa, uint64_t txg) ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); - ASSERT(bpl->bpl_queue == NULL); + + spa->spa_sync_pass = 0; spa_config_exit(spa, SCL_CONFIG, FTAG); + spa_handle_ignored_writes(spa); + /* * If any async tasks have been requested, kick them off. */ diff --git a/module/zfs/spa_boot.c b/module/zfs/spa_boot.c index 49e9e5019..a6cdb8189 100644 --- a/module/zfs/spa_boot.c +++ b/module/zfs/spa_boot.c @@ -20,12 +20,11 @@ */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - +#include <sys/zio.h> #include <sys/spa.h> #include <sys/sunddi.h> diff --git a/module/zfs/spa_config.c b/module/zfs/spa_config.c index b2063bba1..cdeda3f93 100644 --- a/module/zfs/spa_config.c +++ b/module/zfs/spa_config.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/spa.h> @@ -75,7 +74,6 @@ spa_config_load(void) void *buf = NULL; nvlist_t *nvlist, *child; nvpair_t *nvpair; - spa_t *spa; char *pathname; struct _buf *file; uint64_t fsize; @@ -119,7 +117,6 @@ spa_config_load(void) mutex_enter(&spa_namespace_lock); nvpair = NULL; while ((nvpair = nvlist_next_nvpair(nvlist, nvpair)) != NULL) { - if (nvpair_type(nvpair) != DATA_TYPE_NVLIST) continue; @@ -127,13 +124,7 @@ spa_config_load(void) if (spa_lookup(nvpair_name(nvpair)) != NULL) continue; - spa = spa_add(nvpair_name(nvpair), NULL); - - /* - * We blindly duplicate the configuration here. If it's - * invalid, we will catch it when the pool is first opened. - */ - VERIFY(nvlist_dup(child, &spa->spa_config, 0) == 0); + (void) spa_add(nvpair_name(nvpair), child, NULL); } mutex_exit(&spa_namespace_lock); @@ -313,6 +304,24 @@ spa_config_set(spa_t *spa, nvlist_t *config) mutex_exit(&spa->spa_props_lock); } +/* Add discovered rewind info, if any to the provided nvlist */ +void +spa_rewind_data_to_nvlist(spa_t *spa, nvlist_t *tonvl) +{ + int64_t loss = 0; + + if (tonvl == NULL || spa->spa_load_txg == 0) + return; + + VERIFY(nvlist_add_uint64(tonvl, ZPOOL_CONFIG_LOAD_TIME, + spa->spa_load_txg_ts) == 0); + if (spa->spa_last_ubsync_txg) + loss = spa->spa_last_ubsync_txg_ts - spa->spa_load_txg_ts; + VERIFY(nvlist_add_int64(tonvl, ZPOOL_CONFIG_REWIND_TIME, loss) == 0); + VERIFY(nvlist_add_uint64(tonvl, ZPOOL_CONFIG_LOAD_DATA_ERRORS, + spa->spa_load_data_errors) == 0); +} + /* * Generate the pool's configuration based on the current in-core state. * We infer whether to generate a complete config or just one top-level config @@ -325,6 +334,7 @@ spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats) vdev_t *rvd = spa->spa_root_vdev; unsigned long hostid = 0; boolean_t locked = B_FALSE; + uint64_t split_guid; if (vd == NULL) { vd = rvd; @@ -381,12 +391,66 @@ spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats) VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_IS_LOG, 1ULL) == 0); vd = vd->vdev_top; /* label contains top config */ + } else { + /* + * Only add the (potentially large) split information + * in the mos config, and not in the vdev labels + */ + if (spa->spa_config_splitting != NULL) + VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_SPLIT, + spa->spa_config_splitting) == 0); + } + + /* + * Add the top-level config. We even add this on pools which + * don't support holes in the namespace as older pools will + * just ignore it. + */ + vdev_top_config_generate(spa, config); + + /* + * If we're splitting, record the original pool's guid. + */ + if (spa->spa_config_splitting != NULL && + nvlist_lookup_uint64(spa->spa_config_splitting, + ZPOOL_CONFIG_SPLIT_GUID, &split_guid) == 0) { + VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_SPLIT_GUID, + split_guid) == 0); } - nvroot = vdev_config_generate(spa, vd, getstats, B_FALSE, B_FALSE); + nvroot = vdev_config_generate(spa, vd, getstats, 0); VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot) == 0); nvlist_free(nvroot); + if (getstats && spa_load_state(spa) == SPA_LOAD_NONE) { + ddt_histogram_t *ddh; + ddt_stat_t *dds; + ddt_object_t *ddo; + + ddh = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP); + ddt_get_dedup_histogram(spa, ddh); + VERIFY(nvlist_add_uint64_array(config, + ZPOOL_CONFIG_DDT_HISTOGRAM, + (uint64_t *)ddh, sizeof (*ddh) / sizeof (uint64_t)) == 0); + kmem_free(ddh, sizeof (ddt_histogram_t)); + + ddo = kmem_zalloc(sizeof (ddt_object_t), KM_SLEEP); + ddt_get_dedup_object_stats(spa, ddo); + VERIFY(nvlist_add_uint64_array(config, + ZPOOL_CONFIG_DDT_OBJ_STATS, + (uint64_t *)ddo, sizeof (*ddo) / sizeof (uint64_t)) == 0); + kmem_free(ddo, sizeof (ddt_object_t)); + + dds = kmem_zalloc(sizeof (ddt_stat_t), KM_SLEEP); + ddt_get_dedup_stats(spa, dds); + VERIFY(nvlist_add_uint64_array(config, + ZPOOL_CONFIG_DDT_STATS, + (uint64_t *)dds, sizeof (*dds) / sizeof (uint64_t)) == 0); + kmem_free(dds, sizeof (ddt_stat_t)); + } + + spa_rewind_data_to_nvlist(spa, config); + if (locked) spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); diff --git a/module/zfs/spa_errlog.c b/module/zfs/spa_errlog.c index ac0a20aaf..282140b3b 100644 --- a/module/zfs/spa_errlog.c +++ b/module/zfs/spa_errlog.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -54,38 +53,6 @@ #include <sys/zap.h> #include <sys/zio.h> -/* - * This is a stripped-down version of strtoull, suitable only for converting - * lowercase hexidecimal numbers that don't overflow. - */ -#ifdef _KERNEL -uint64_t -strtonum(const char *str, char **nptr) -{ - uint64_t val = 0; - char c; - int digit; - - while ((c = *str) != '\0') { - if (c >= '0' && c <= '9') - digit = c - '0'; - else if (c >= 'a' && c <= 'f') - digit = 10 + c - 'a'; - else - break; - - val *= 16; - val += digit; - - str++; - } - - if (nptr) - *nptr = (char *)str; - - return (val); -} -#endif /* * Convert a bookmark to a string. @@ -134,7 +101,7 @@ spa_log_error(spa_t *spa, zio_t *zio) * If we are trying to import a pool, ignore any errors, as we won't be * writing to the pool any time soon. */ - if (spa->spa_load_state == SPA_LOAD_TRYIMPORT) + if (spa_load_state(spa) == SPA_LOAD_TRYIMPORT) return; mutex_enter(&spa->spa_errlist_lock); diff --git a/module/zfs/spa_history.c b/module/zfs/spa_history.c index b77ac4208..212abae5b 100644 --- a/module/zfs/spa_history.c +++ b/module/zfs/spa_history.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/spa.h> @@ -33,6 +32,7 @@ #include <sys/utsname.h> #include <sys/cmn_err.h> #include <sys/sunddi.h> +#include "zfs_comutil.h" #ifdef _KERNEL #include <sys/zone.h> #endif @@ -103,7 +103,8 @@ spa_history_create_obj(spa_t *spa, dmu_tx_t *tx) * Figure out maximum size of history log. We set it at * 1% of pool size, with a max of 32MB and min of 128KB. */ - shpp->sh_phys_max_off = spa_get_dspace(spa) / 100; + shpp->sh_phys_max_off = + metaslab_class_get_dspace(spa_normal_class(spa)) / 100; shpp->sh_phys_max_off = MIN(shpp->sh_phys_max_off, 32<<20); shpp->sh_phys_max_off = MAX(shpp->sh_phys_max_off, 128<<10); @@ -186,8 +187,9 @@ spa_history_zone() /* * Write out a history event. */ +/*ARGSUSED*/ static void -spa_history_log_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) +spa_history_log_sync(void *arg1, void *arg2, dmu_tx_t *tx) { spa_t *spa = arg1; history_arg_t *hap = arg2; @@ -230,9 +232,8 @@ spa_history_log_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) VERIFY(nvlist_alloc(&nvrecord, NV_UNIQUE_NAME, KM_SLEEP) == 0); VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_TIME, gethrestime_sec()) == 0); - VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_WHO, - (uint64_t)crgetuid(cr)) == 0); - if (hap->ha_zone[0] != '\0') + VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_WHO, hap->ha_uid) == 0); + if (hap->ha_zone != NULL) VERIFY(nvlist_add_string(nvrecord, ZPOOL_HIST_ZONE, hap->ha_zone) == 0); #ifdef _KERNEL @@ -243,6 +244,8 @@ spa_history_log_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) hap->ha_log_type == LOG_CMD_NORMAL) { VERIFY(nvlist_add_string(nvrecord, ZPOOL_HIST_CMD, history_str) == 0); + + zfs_dbgmsg("command: %s", history_str); } else { VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_INT_EVENT, hap->ha_event) == 0); @@ -250,6 +253,11 @@ spa_history_log_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) tx->tx_txg) == 0); VERIFY(nvlist_add_string(nvrecord, ZPOOL_HIST_INT_STR, history_str) == 0); + + zfs_dbgmsg("internal %s pool:%s txg:%llu %s", + zfs_history_event_names[hap->ha_event], spa_name(spa), + (longlong_t)tx->tx_txg, history_str); + } VERIFY(nvlist_size(nvrecord, &reclen, NV_ENCODE_XDR) == 0); @@ -278,10 +286,10 @@ spa_history_log_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) kmem_free(record_packed, reclen); dmu_buf_rele(dbp, FTAG); - if (hap->ha_log_type == LOG_INTERNAL) { - kmem_free((void*)hap->ha_history_str, HIS_MAX_RECORD_LEN); - kmem_free(hap, sizeof (history_arg_t)); - } + strfree(hap->ha_history_str); + if (hap->ha_zone != NULL) + strfree(hap->ha_zone); + kmem_free(hap, sizeof (history_arg_t)); } /* @@ -290,15 +298,32 @@ spa_history_log_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) int spa_history_log(spa_t *spa, const char *history_str, history_log_type_t what) { - history_arg_t ha; + history_arg_t *ha; + int err = 0; + dmu_tx_t *tx; ASSERT(what != LOG_INTERNAL); - ha.ha_history_str = history_str; - ha.ha_log_type = what; - (void) strlcpy(ha.ha_zone, spa_history_zone(), sizeof (ha.ha_zone)); - return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_history_log_sync, - spa, &ha, 0)); + tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); + err = dmu_tx_assign(tx, TXG_WAIT); + if (err) { + dmu_tx_abort(tx); + return (err); + } + + ha = kmem_alloc(sizeof (history_arg_t), KM_SLEEP); + ha->ha_history_str = strdup(history_str); + ha->ha_zone = strdup(spa_history_zone()); + ha->ha_log_type = what; + ha->ha_uid = crgetuid(CRED()); + + /* Kick this off asynchronously; errors are ignored. */ + dsl_sync_task_do_nowait(spa_get_dsl(spa), NULL, + spa_history_log_sync, spa, ha, 0, tx); + dmu_tx_commit(tx); + + /* spa_history_log_sync will free ha and strings */ + return (err); } /* @@ -321,6 +346,14 @@ spa_history_get(spa_t *spa, uint64_t *offp, uint64_t *len, char *buf) if (!spa->spa_history) return (ENOENT); + /* + * The history is logged asynchronously, so when they request + * the first chunk of history, make sure everything has been + * synced to disk so that we get it. + */ + if (*offp == 0 && spa_writeable(spa)) + txg_wait_synced(spa_get_dsl(spa), 0); + if ((err = dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)) != 0) return (err); shpp = dbp->db_data; @@ -392,10 +425,9 @@ spa_history_get(spa_t *spa, uint64_t *offp, uint64_t *len, char *buf) static void log_internal(history_internal_events_t event, spa_t *spa, - dmu_tx_t *tx, cred_t *cr, const char *fmt, va_list adx) + dmu_tx_t *tx, const char *fmt, va_list adx) { - history_arg_t *hap; - char *str; + history_arg_t *ha; /* * If this is part of creating a pool, not everything is @@ -404,28 +436,29 @@ log_internal(history_internal_events_t event, spa_t *spa, if (tx->tx_txg == TXG_INITIAL) return; - hap = kmem_alloc(sizeof (history_arg_t), KM_SLEEP); - str = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); + ha = kmem_alloc(sizeof (history_arg_t), KM_SLEEP); + ha->ha_history_str = kmem_alloc(vsnprintf(NULL, 0, fmt, adx) + 1, + KM_SLEEP); - (void) vsnprintf(str, HIS_MAX_RECORD_LEN, fmt, adx); + (void) vsprintf(ha->ha_history_str, fmt, adx); - hap->ha_log_type = LOG_INTERNAL; - hap->ha_history_str = str; - hap->ha_event = event; - hap->ha_zone[0] = '\0'; + ha->ha_log_type = LOG_INTERNAL; + ha->ha_event = event; + ha->ha_zone = NULL; + ha->ha_uid = 0; if (dmu_tx_is_syncing(tx)) { - spa_history_log_sync(spa, hap, cr, tx); + spa_history_log_sync(spa, ha, tx); } else { dsl_sync_task_do_nowait(spa_get_dsl(spa), NULL, - spa_history_log_sync, spa, hap, 0, tx); + spa_history_log_sync, spa, ha, 0, tx); } - /* spa_history_log_sync() will free hap and str */ + /* spa_history_log_sync() will free ha and strings */ } void -spa_history_internal_log(history_internal_events_t event, spa_t *spa, - dmu_tx_t *tx, cred_t *cr, const char *fmt, ...) +spa_history_log_internal(history_internal_events_t event, spa_t *spa, + dmu_tx_t *tx, const char *fmt, ...) { dmu_tx_t *htx = tx; va_list adx; @@ -440,7 +473,7 @@ spa_history_internal_log(history_internal_events_t event, spa_t *spa, } va_start(adx, fmt); - log_internal(event, spa, htx, cr, fmt, adx); + log_internal(event, spa, htx, fmt, adx); va_end(adx); /* if we didn't get a tx from the caller, commit the one we made */ @@ -455,7 +488,7 @@ spa_history_log_version(spa_t *spa, history_internal_events_t event) uint64_t current_vers = spa_version(spa); if (current_vers >= SPA_VERSION_ZPOOL_HISTORY) { - spa_history_internal_log(event, spa, NULL, CRED(), + spa_history_log_internal(event, spa, NULL, "pool spa %llu; zfs spa %llu; zpl %d; uts %s %s %s %s", (u_longlong_t)current_vers, SPA_VERSION, ZPL_VERSION, utsname.nodename, utsname.release, utsname.version, diff --git a/module/zfs/spa_misc.c b/module/zfs/spa_misc.c index 8150ac937..52af7fcb7 100644 --- a/module/zfs/spa_misc.c +++ b/module/zfs/spa_misc.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -41,10 +40,11 @@ #include <sys/dsl_pool.h> #include <sys/dsl_dir.h> #include <sys/dsl_prop.h> +#include <sys/dsl_scan.h> #include <sys/fs/zfs.h> #include <sys/metaslab_impl.h> -#include <sys/sunddi.h> #include <sys/arc.h> +#include <sys/ddt.h> #include "zfs_prop.h" /* @@ -186,7 +186,7 @@ * * SCL_VDEV * Held as reader to prevent changes to the vdev tree during trivial - * inquiries such as bp_get_dasize(). SCL_VDEV is distinct from the + * inquiries such as bp_get_dsize(). SCL_VDEV is distinct from the * other locks, and lower than all of them, to ensure that it's safe * to acquire regardless of caller context. * @@ -420,7 +420,7 @@ spa_lookup(const char *name) * exist by calling spa_lookup() first. */ spa_t * -spa_add(const char *name, const char *altroot) +spa_add(const char *name, nvlist_t *config, const char *altroot) { spa_t *spa; spa_config_dirent_t *dp; @@ -430,29 +430,36 @@ spa_add(const char *name, const char *altroot) spa = kmem_zalloc(sizeof (spa_t), KM_SLEEP); mutex_init(&spa->spa_async_lock, NULL, MUTEX_DEFAULT, NULL); - mutex_init(&spa->spa_scrub_lock, NULL, MUTEX_DEFAULT, NULL); - mutex_init(&spa->spa_errlog_lock, NULL, MUTEX_DEFAULT, NULL); mutex_init(&spa->spa_errlist_lock, NULL, MUTEX_DEFAULT, NULL); - mutex_init(&spa->spa_sync_bplist.bpl_lock, NULL, MUTEX_DEFAULT, NULL); + mutex_init(&spa->spa_errlog_lock, NULL, MUTEX_DEFAULT, NULL); mutex_init(&spa->spa_history_lock, NULL, MUTEX_DEFAULT, NULL); + mutex_init(&spa->spa_proc_lock, NULL, MUTEX_DEFAULT, NULL); mutex_init(&spa->spa_props_lock, NULL, MUTEX_DEFAULT, NULL); + mutex_init(&spa->spa_scrub_lock, NULL, MUTEX_DEFAULT, NULL); + mutex_init(&spa->spa_suspend_lock, NULL, MUTEX_DEFAULT, NULL); + mutex_init(&spa->spa_vdev_top_lock, NULL, MUTEX_DEFAULT, NULL); cv_init(&spa->spa_async_cv, NULL, CV_DEFAULT, NULL); + cv_init(&spa->spa_proc_cv, NULL, CV_DEFAULT, NULL); cv_init(&spa->spa_scrub_io_cv, NULL, CV_DEFAULT, NULL); cv_init(&spa->spa_suspend_cv, NULL, CV_DEFAULT, NULL); + for (int t = 0; t < TXG_SIZE; t++) + bplist_create(&spa->spa_free_bplist[t]); + (void) strlcpy(spa->spa_name, name, sizeof (spa->spa_name)); spa->spa_state = POOL_STATE_UNINITIALIZED; spa->spa_freeze_txg = UINT64_MAX; spa->spa_final_txg = UINT64_MAX; + spa->spa_load_max_txg = UINT64_MAX; + spa->spa_proc = &p0; + spa->spa_proc_state = SPA_PROC_NONE; refcount_create(&spa->spa_refcount); spa_config_lock_init(spa); avl_add(&spa_namespace_avl, spa); - mutex_init(&spa->spa_suspend_lock, NULL, MUTEX_DEFAULT, NULL); - /* * Set the alternate root, if there is one. */ @@ -468,9 +475,12 @@ spa_add(const char *name, const char *altroot) offsetof(spa_config_dirent_t, scd_link)); dp = kmem_zalloc(sizeof (spa_config_dirent_t), KM_SLEEP); - dp->scd_path = spa_strdup(spa_config_path); + dp->scd_path = altroot ? NULL : spa_strdup(spa_config_path); list_insert_head(&spa->spa_config_list, dp); + if (config != NULL) + VERIFY(nvlist_dup(config, &spa->spa_config, 0) == 0); + return (spa); } @@ -487,6 +497,8 @@ spa_remove(spa_t *spa) ASSERT(MUTEX_HELD(&spa_namespace_lock)); ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); + nvlist_free(spa->spa_config_splitting); + avl_remove(&spa_namespace_avl, spa); cv_broadcast(&spa_namespace_cv); @@ -510,18 +522,23 @@ spa_remove(spa_t *spa) spa_config_lock_destroy(spa); + for (int t = 0; t < TXG_SIZE; t++) + bplist_destroy(&spa->spa_free_bplist[t]); + cv_destroy(&spa->spa_async_cv); + cv_destroy(&spa->spa_proc_cv); cv_destroy(&spa->spa_scrub_io_cv); cv_destroy(&spa->spa_suspend_cv); mutex_destroy(&spa->spa_async_lock); - mutex_destroy(&spa->spa_scrub_lock); - mutex_destroy(&spa->spa_errlog_lock); mutex_destroy(&spa->spa_errlist_lock); - mutex_destroy(&spa->spa_sync_bplist.bpl_lock); + mutex_destroy(&spa->spa_errlog_lock); mutex_destroy(&spa->spa_history_lock); + mutex_destroy(&spa->spa_proc_lock); mutex_destroy(&spa->spa_props_lock); + mutex_destroy(&spa->spa_scrub_lock); mutex_destroy(&spa->spa_suspend_lock); + mutex_destroy(&spa->spa_vdev_top_lock); kmem_free(spa, sizeof (spa_t)); } @@ -815,12 +832,6 @@ spa_l2cache_activate(vdev_t *vd) mutex_exit(&spa_l2cache_lock); } -void -spa_l2cache_space_update(vdev_t *vd, int64_t space, int64_t alloc) -{ - vdev_space_update(vd, space, alloc, B_FALSE); -} - /* * ========================================================================== * SPA vdev locking @@ -835,7 +846,20 @@ spa_l2cache_space_update(vdev_t *vd, int64_t space, int64_t alloc) uint64_t spa_vdev_enter(spa_t *spa) { + mutex_enter(&spa->spa_vdev_top_lock); mutex_enter(&spa_namespace_lock); + return (spa_vdev_config_enter(spa)); +} + +/* + * Internal implementation for spa_vdev_enter(). Used when a vdev + * operation requires multiple syncs (i.e. removing a device) while + * keeping the spa_namespace_lock held. + */ +uint64_t +spa_vdev_config_enter(spa_t *spa) +{ + ASSERT(MUTEX_HELD(&spa_namespace_lock)); spa_config_enter(spa, SCL_ALL, spa, RW_WRITER); @@ -843,14 +867,14 @@ spa_vdev_enter(spa_t *spa) } /* - * Unlock the spa_t after adding or removing a vdev. Besides undoing the - * locking of spa_vdev_enter(), we also want make sure the transactions have - * synced to disk, and then update the global configuration cache with the new - * information. + * Used in combination with spa_vdev_config_enter() to allow the syncing + * of multiple transactions without releasing the spa_namespace_lock. */ -int -spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error) +void +spa_vdev_config_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error, char *tag) { + ASSERT(MUTEX_HELD(&spa_namespace_lock)); + int config_changed = B_FALSE; ASSERT(txg > spa_last_synced_txg(spa)); @@ -863,16 +887,31 @@ spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error) vdev_dtl_reassess(spa->spa_root_vdev, 0, 0, B_FALSE); /* - * If the config changed, notify the scrub thread that it must restart. + * If the config changed, notify the scrub that it must restart. + * This will initiate a resilver if needed. */ if (error == 0 && !list_is_empty(&spa->spa_config_dirty_list)) { - dsl_pool_scrub_restart(spa->spa_dsl_pool); config_changed = B_TRUE; + spa->spa_config_generation++; } + /* + * Verify the metaslab classes. + */ + ASSERT(metaslab_class_validate(spa_normal_class(spa)) == 0); + ASSERT(metaslab_class_validate(spa_log_class(spa)) == 0); + spa_config_exit(spa, SCL_ALL, spa); /* + * Panic the system if the specified tag requires it. This + * is useful for ensuring that configurations are updated + * transactionally. + */ + if (zio_injection_enabled) + zio_handle_panic_injection(spa, tag, 0); + + /* * Note: this txg_wait_synced() is important because it ensures * that there won't be more than one config change per txg. * This allows us to use the txg as the generation number. @@ -892,8 +931,20 @@ spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error) */ if (config_changed) spa_config_sync(spa, B_FALSE, B_TRUE); +} +/* + * Unlock the spa_t after adding or removing a vdev. Besides undoing the + * locking of spa_vdev_enter(), we also want make sure the transactions have + * synced to disk, and then update the global configuration cache with the new + * information. + */ +int +spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error) +{ + spa_vdev_config_exit(spa, vd, txg, error, FTAG); mutex_exit(&spa_namespace_lock); + mutex_exit(&spa->spa_vdev_top_lock); return (error); } @@ -902,18 +953,52 @@ spa_vdev_exit(spa_t *spa, vdev_t *vd, uint64_t txg, int error) * Lock the given spa_t for the purpose of changing vdev state. */ void -spa_vdev_state_enter(spa_t *spa) +spa_vdev_state_enter(spa_t *spa, int oplocks) { - spa_config_enter(spa, SCL_STATE_ALL, spa, RW_WRITER); + int locks = SCL_STATE_ALL | oplocks; + + /* + * Root pools may need to read of the underlying devfs filesystem + * when opening up a vdev. Unfortunately if we're holding the + * SCL_ZIO lock it will result in a deadlock when we try to issue + * the read from the root filesystem. Instead we "prefetch" + * the associated vnodes that we need prior to opening the + * underlying devices and cache them so that we can prevent + * any I/O when we are doing the actual open. + */ + if (spa_is_root(spa)) { + int low = locks & ~(SCL_ZIO - 1); + int high = locks & ~low; + + spa_config_enter(spa, high, spa, RW_WRITER); + vdev_hold(spa->spa_root_vdev); + spa_config_enter(spa, low, spa, RW_WRITER); + } else { + spa_config_enter(spa, locks, spa, RW_WRITER); + } + spa->spa_vdev_locks = locks; } int spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error) { - if (vd != NULL) + boolean_t config_changed = B_FALSE; + + if (vd != NULL || error == 0) + vdev_dtl_reassess(vd ? vd->vdev_top : spa->spa_root_vdev, + 0, 0, B_FALSE); + + if (vd != NULL) { vdev_state_dirty(vd->vdev_top); + config_changed = B_TRUE; + spa->spa_config_generation++; + } - spa_config_exit(spa, SCL_STATE_ALL, spa); + if (spa_is_root(spa)) + vdev_rele(spa->spa_root_vdev); + + ASSERT3U(spa->spa_vdev_locks, >=, SCL_STATE_ALL); + spa_config_exit(spa, spa->spa_vdev_locks, spa); /* * If anything changed, wait for it to sync. This ensures that, @@ -924,6 +1009,15 @@ spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error) if (vd != NULL) txg_wait_synced(spa->spa_dsl_pool, 0); + /* + * If the config changed, update the config cache. + */ + if (config_changed) { + mutex_enter(&spa_namespace_lock); + spa_config_sync(spa, B_FALSE, B_TRUE); + mutex_exit(&spa_namespace_lock); + } + return (error); } @@ -983,7 +1077,6 @@ spa_rename(const char *name, const char *newname) return (0); } - /* * Determine whether a pool with given pool_guid exists. If device_guid is * non-zero, determine whether the pool exists *and* contains a device with the @@ -1056,48 +1149,36 @@ spa_get_random(uint64_t range) return (r % range); } -void -sprintf_blkptr(char *buf, int len, const blkptr_t *bp) +uint64_t +spa_generate_guid(spa_t *spa) { - int d; + uint64_t guid = spa_get_random(-1ULL); - if (bp == NULL) { - (void) snprintf(buf, len, "<NULL>"); - return; + if (spa != NULL) { + while (guid == 0 || spa_guid_exists(spa_guid(spa), guid)) + guid = spa_get_random(-1ULL); + } else { + while (guid == 0 || spa_guid_exists(guid, 0)) + guid = spa_get_random(-1ULL); } - if (BP_IS_HOLE(bp)) { - (void) snprintf(buf, len, "<hole>"); - return; - } + return (guid); +} + +void +sprintf_blkptr(char *buf, const blkptr_t *bp) +{ + char *type = NULL; + char *checksum = NULL; + char *compress = NULL; - (void) snprintf(buf, len, "[L%llu %s] %llxL/%llxP ", - (u_longlong_t)BP_GET_LEVEL(bp), - dmu_ot[BP_GET_TYPE(bp)].ot_name, - (u_longlong_t)BP_GET_LSIZE(bp), - (u_longlong_t)BP_GET_PSIZE(bp)); - - for (d = 0; d < BP_GET_NDVAS(bp); d++) { - const dva_t *dva = &bp->blk_dva[d]; - (void) snprintf(buf + strlen(buf), len - strlen(buf), - "DVA[%d]=<%llu:%llx:%llx> ", d, - (u_longlong_t)DVA_GET_VDEV(dva), - (u_longlong_t)DVA_GET_OFFSET(dva), - (u_longlong_t)DVA_GET_ASIZE(dva)); + if (bp != NULL) { + type = dmu_ot[BP_GET_TYPE(bp)].ot_name; + checksum = zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name; + compress = zio_compress_table[BP_GET_COMPRESS(bp)].ci_name; } - (void) snprintf(buf + strlen(buf), len - strlen(buf), - "%s %s %s %s birth=%llu fill=%llu cksum=%llx:%llx:%llx:%llx", - zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, - zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, - BP_GET_BYTEORDER(bp) == 0 ? "BE" : "LE", - BP_IS_GANG(bp) ? "gang" : "contiguous", - (u_longlong_t)bp->blk_birth, - (u_longlong_t)bp->blk_fill, - (u_longlong_t)bp->blk_cksum.zc_word[0], - (u_longlong_t)bp->blk_cksum.zc_word[1], - (u_longlong_t)bp->blk_cksum.zc_word[2], - (u_longlong_t)bp->blk_cksum.zc_word[3]); + SPRINTF_BLKPTR(snprintf, ' ', buf, bp, type, checksum, compress); } void @@ -1126,6 +1207,37 @@ zfs_panic_recover(const char *fmt, ...) } /* + * This is a stripped-down version of strtoull, suitable only for converting + * lowercase hexidecimal numbers that don't overflow. + */ +uint64_t +strtonum(const char *str, char **nptr) +{ + uint64_t val = 0; + char c; + int digit; + + while ((c = *str) != '\0') { + if (c >= '0' && c <= '9') + digit = c - '0'; + else if (c >= 'a' && c <= 'f') + digit = 10 + c - 'a'; + else + break; + + val *= 16; + val += digit; + + str++; + } + + if (nptr) + *nptr = (char *)str; + + return (val); +} + +/* * ========================================================================== * Accessor functions * ========================================================================== @@ -1203,59 +1315,55 @@ spa_first_txg(spa_t *spa) return (spa->spa_first_txg); } +uint64_t +spa_syncing_txg(spa_t *spa) +{ + return (spa->spa_syncing_txg); +} + pool_state_t spa_state(spa_t *spa) { return (spa->spa_state); } -uint64_t -spa_freeze_txg(spa_t *spa) +spa_load_state_t +spa_load_state(spa_t *spa) { - return (spa->spa_freeze_txg); + return (spa->spa_load_state); } -/* - * Return how much space is allocated in the pool (ie. sum of all asize) - */ uint64_t -spa_get_alloc(spa_t *spa) +spa_freeze_txg(spa_t *spa) { - return (spa->spa_root_vdev->vdev_stat.vs_alloc); + return (spa->spa_freeze_txg); } -/* - * Return how much (raid-z inflated) space there is in the pool. - */ +/* ARGSUSED */ uint64_t -spa_get_space(spa_t *spa) +spa_get_asize(spa_t *spa, uint64_t lsize) { - return (spa->spa_root_vdev->vdev_stat.vs_space); + /* + * The worst case is single-sector max-parity RAID-Z blocks, in which + * case the space requirement is exactly (VDEV_RAIDZ_MAXPARITY + 1) + * times the size; so just assume that. Add to this the fact that + * we can have up to 3 DVAs per bp, and one more factor of 2 because + * the block may be dittoed with up to 3 DVAs by ddt_sync(). + */ + return (lsize * (VDEV_RAIDZ_MAXPARITY + 1) * SPA_DVAS_PER_BP * 2); } -/* - * Return the amount of raid-z-deflated space in the pool. - */ uint64_t spa_get_dspace(spa_t *spa) { - if (spa->spa_deflate) - return (spa->spa_root_vdev->vdev_stat.vs_dspace); - else - return (spa->spa_root_vdev->vdev_stat.vs_space); + return (spa->spa_dspace); } -/* ARGSUSED */ -uint64_t -spa_get_asize(spa_t *spa, uint64_t lsize) +void +spa_update_dspace(spa_t *spa) { - /* - * For now, the worst case is 512-byte RAID-Z blocks, in which - * case the space requirement is exactly 2x; so just assume that. - * Add to this the fact that we can have up to 3 DVAs per bp, and - * we have to multiply by a total of 6x. - */ - return (lsize * 6); + spa->spa_dspace = metaslab_class_get_dspace(spa_normal_class(spa)) + + ddt_get_dedup_dspace(spa); } /* @@ -1280,6 +1388,24 @@ spa_version(spa_t *spa) return (spa->spa_ubsync.ub_version); } +boolean_t +spa_deflate(spa_t *spa) +{ + return (spa->spa_deflate); +} + +metaslab_class_t * +spa_normal_class(spa_t *spa) +{ + return (spa->spa_normal_class); +} + +metaslab_class_t * +spa_log_class(spa_t *spa) +{ + return (spa->spa_log_class); +} + int spa_max_replication(spa_t *spa) { @@ -1293,24 +1419,52 @@ spa_max_replication(spa_t *spa) return (MIN(SPA_DVAS_PER_BP, spa_max_replication_override)); } +int +spa_prev_software_version(spa_t *spa) +{ + return (spa->spa_prev_software_version); +} + uint64_t -bp_get_dasize(spa_t *spa, const blkptr_t *bp) +dva_get_dsize_sync(spa_t *spa, const dva_t *dva) { - int sz = 0, i; + uint64_t asize = DVA_GET_ASIZE(dva); + uint64_t dsize = asize; - if (!spa->spa_deflate) - return (BP_GET_ASIZE(bp)); + ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0); - spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); - for (i = 0; i < SPA_DVAS_PER_BP; i++) { - vdev_t *vd = - vdev_lookup_top(spa, DVA_GET_VDEV(&bp->blk_dva[i])); - if (vd) - sz += (DVA_GET_ASIZE(&bp->blk_dva[i]) >> - SPA_MINBLOCKSHIFT) * vd->vdev_deflate_ratio; + if (asize != 0 && spa->spa_deflate) { + vdev_t *vd = vdev_lookup_top(spa, DVA_GET_VDEV(dva)); + dsize = (asize >> SPA_MINBLOCKSHIFT) * vd->vdev_deflate_ratio; } + + return (dsize); +} + +uint64_t +bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp) +{ + uint64_t dsize = 0; + + for (int d = 0; d < SPA_DVAS_PER_BP; d++) + dsize += dva_get_dsize_sync(spa, &bp->blk_dva[d]); + + return (dsize); +} + +uint64_t +bp_get_dsize(spa_t *spa, const blkptr_t *bp) +{ + uint64_t dsize = 0; + + spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); + + for (int d = 0; d < SPA_DVAS_PER_BP; d++) + dsize += dva_get_dsize_sync(spa, &bp->blk_dva[d]); + spa_config_exit(spa, SCL_VDEV, FTAG); - return (sz); + + return (dsize); } /* @@ -1412,9 +1566,18 @@ spa_has_slogs(spa_t *spa) return (spa->spa_log_class->mc_rotor != NULL); } -/* - * Return whether this pool is the root pool. - */ +spa_log_state_t +spa_get_log_state(spa_t *spa) +{ + return (spa->spa_log_state); +} + +void +spa_set_log_state(spa_t *spa, spa_log_state_t state) +{ + spa->spa_log_state = state; +} + boolean_t spa_is_root(spa_t *spa) { @@ -1432,3 +1595,69 @@ spa_mode(spa_t *spa) { return (spa->spa_mode); } + +uint64_t +spa_bootfs(spa_t *spa) +{ + return (spa->spa_bootfs); +} + +uint64_t +spa_delegation(spa_t *spa) +{ + return (spa->spa_delegation); +} + +objset_t * +spa_meta_objset(spa_t *spa) +{ + return (spa->spa_meta_objset); +} + +enum zio_checksum +spa_dedup_checksum(spa_t *spa) +{ + return (spa->spa_dedup_checksum); +} + +/* + * Reset pool scan stat per scan pass (or reboot). + */ +void +spa_scan_stat_init(spa_t *spa) +{ + /* data not stored on disk */ + spa->spa_scan_pass_start = gethrestime_sec(); + spa->spa_scan_pass_exam = 0; + vdev_scan_stat_init(spa->spa_root_vdev); +} + +/* + * Get scan stats for zpool status reports + */ +int +spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps) +{ + dsl_scan_t *scn = spa->spa_dsl_pool ? spa->spa_dsl_pool->dp_scan : NULL; + + if (scn == NULL || scn->scn_phys.scn_func == POOL_SCAN_NONE) + return (ENOENT); + bzero(ps, sizeof (pool_scan_stat_t)); + + /* data stored on disk */ + ps->pss_func = scn->scn_phys.scn_func; + ps->pss_start_time = scn->scn_phys.scn_start_time; + ps->pss_end_time = scn->scn_phys.scn_end_time; + ps->pss_to_examine = scn->scn_phys.scn_to_examine; + ps->pss_examined = scn->scn_phys.scn_examined; + ps->pss_to_process = scn->scn_phys.scn_to_process; + ps->pss_processed = scn->scn_phys.scn_processed; + ps->pss_errors = scn->scn_phys.scn_errors; + ps->pss_state = scn->scn_phys.scn_state; + + /* data not stored on disk */ + ps->pss_pass_start = spa->spa_scan_pass_start; + ps->pss_pass_exam = spa->spa_scan_pass_exam; + + return (0); +} diff --git a/module/zfs/space_map.c b/module/zfs/space_map.c index 75b55d5c1..1ce7b2a3d 100644 --- a/module/zfs/space_map.c +++ b/module/zfs/space_map.c @@ -258,8 +258,10 @@ space_map_load_wait(space_map_t *sm) { ASSERT(MUTEX_HELD(sm->sm_lock)); - while (sm->sm_loading) + while (sm->sm_loading) { + ASSERT(!sm->sm_loaded); cv_wait(&sm->sm_load_cv, sm->sm_lock); + } } /* @@ -276,11 +278,8 @@ space_map_load(space_map_t *sm, space_map_ops_t *ops, uint8_t maptype, int error = 0; ASSERT(MUTEX_HELD(sm->sm_lock)); - - space_map_load_wait(sm); - - if (sm->sm_loaded) - return (0); + ASSERT(!sm->sm_loaded); + ASSERT(!sm->sm_loading); sm->sm_loading = B_TRUE; end = smo->smo_objsize; @@ -368,10 +367,8 @@ space_map_unload(space_map_t *sm) uint64_t space_map_maxsize(space_map_t *sm) { - if (sm->sm_loaded && sm->sm_ops != NULL) - return (sm->sm_ops->smop_max(sm)); - else - return (-1ULL); + ASSERT(sm->sm_ops != NULL); + return (sm->sm_ops->smop_max(sm)); } uint64_t diff --git a/module/zfs/txg.c b/module/zfs/txg.c index e3c0e2a13..f478ad0c6 100644 --- a/module/zfs/txg.c +++ b/module/zfs/txg.c @@ -19,14 +19,15 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> #include <sys/txg_impl.h> #include <sys/dmu_impl.h> +#include <sys/dmu_tx.h> #include <sys/dsl_pool.h> +#include <sys/dsl_scan.h> #include <sys/callb.h> /* @@ -57,10 +58,12 @@ txg_init(dsl_pool_t *dp, uint64_t txg) for (i = 0; i < TXG_SIZE; i++) { cv_init(&tx->tx_cpu[c].tc_cv[i], NULL, CV_DEFAULT, NULL); + list_create(&tx->tx_cpu[c].tc_callbacks[i], + sizeof (dmu_tx_callback_t), + offsetof(dmu_tx_callback_t, dcb_node)); } } - rw_init(&tx->tx_suspend, NULL, RW_DEFAULT, NULL); mutex_init(&tx->tx_sync_lock, NULL, MUTEX_DEFAULT, NULL); cv_init(&tx->tx_sync_more_cv, NULL, CV_DEFAULT, NULL); @@ -83,7 +86,6 @@ txg_fini(dsl_pool_t *dp) ASSERT(tx->tx_threads == 0); - rw_destroy(&tx->tx_suspend); mutex_destroy(&tx->tx_sync_lock); cv_destroy(&tx->tx_sync_more_cv); @@ -96,10 +98,15 @@ txg_fini(dsl_pool_t *dp) int i; mutex_destroy(&tx->tx_cpu[c].tc_lock); - for (i = 0; i < TXG_SIZE; i++) + for (i = 0; i < TXG_SIZE; i++) { cv_destroy(&tx->tx_cpu[c].tc_cv[i]); + list_destroy(&tx->tx_cpu[c].tc_callbacks[i]); + } } + if (tx->tx_commit_cb_taskq != NULL) + taskq_destroy(tx->tx_commit_cb_taskq); + kmem_free(tx->tx_cpu, max_ncpus * sizeof (tx_cpu_t)); bzero(tx, sizeof (tx_state_t)); @@ -129,7 +136,7 @@ txg_sync_start(dsl_pool_t *dp) * 32-bit x86. This is due in part to nested pools and * scrub_visitbp() recursion. */ - tx->tx_sync_thread = thread_create(NULL, 12<<10, txg_sync_thread, + tx->tx_sync_thread = thread_create(NULL, 32<<10, txg_sync_thread, dp, 0, &p0, TS_RUN, minclsyspri); mutex_exit(&tx->tx_sync_lock); @@ -159,7 +166,8 @@ txg_thread_wait(tx_state_t *tx, callb_cpr_t *cpr, kcondvar_t *cv, uint64_t time) CALLB_CPR_SAFE_BEGIN(cpr); if (time) - (void) cv_timedwait(cv, &tx->tx_sync_lock, lbolt + time); + (void) cv_timedwait(cv, &tx->tx_sync_lock, + ddi_get_lbolt() + time); else cv_wait(cv, &tx->tx_sync_lock); @@ -179,7 +187,11 @@ txg_sync_stop(dsl_pool_t *dp) * Finish off any work in progress. */ ASSERT(tx->tx_threads == 2); - txg_wait_synced(dp, 0); + + /* + * We need to ensure that we've vacated the deferred space_maps. + */ + txg_wait_synced(dp, tx->tx_open_txg + TXG_DEFER_SIZE); /* * Wake all sync threads and wait for them to die. @@ -229,6 +241,17 @@ txg_rele_to_quiesce(txg_handle_t *th) } void +txg_register_callbacks(txg_handle_t *th, list_t *tx_callbacks) +{ + tx_cpu_t *tc = th->th_cpu; + int g = th->th_txg & TXG_MASK; + + mutex_enter(&tc->tc_lock); + list_move_tail(&tc->tc_callbacks[g], tx_callbacks); + mutex_exit(&tc->tc_lock); +} + +void txg_rele_to_sync(txg_handle_t *th) { tx_cpu_t *tc = th->th_cpu; @@ -279,8 +302,58 @@ txg_quiesce(dsl_pool_t *dp, uint64_t txg) } static void +txg_do_callbacks(list_t *cb_list) +{ + dmu_tx_do_callbacks(cb_list, 0); + + list_destroy(cb_list); + + kmem_free(cb_list, sizeof (list_t)); +} + +/* + * Dispatch the commit callbacks registered on this txg to worker threads. + */ +static void +txg_dispatch_callbacks(dsl_pool_t *dp, uint64_t txg) +{ + int c; + tx_state_t *tx = &dp->dp_tx; + list_t *cb_list; + + for (c = 0; c < max_ncpus; c++) { + tx_cpu_t *tc = &tx->tx_cpu[c]; + /* No need to lock tx_cpu_t at this point */ + + int g = txg & TXG_MASK; + + if (list_is_empty(&tc->tc_callbacks[g])) + continue; + + if (tx->tx_commit_cb_taskq == NULL) { + /* + * Commit callback taskq hasn't been created yet. + */ + tx->tx_commit_cb_taskq = taskq_create("tx_commit_cb", + max_ncpus, minclsyspri, max_ncpus, max_ncpus * 2, + TASKQ_PREPOPULATE); + } + + cb_list = kmem_alloc(sizeof (list_t), KM_SLEEP); + list_create(cb_list, sizeof (dmu_tx_callback_t), + offsetof(dmu_tx_callback_t, dcb_node)); + + list_move_tail(&tc->tc_callbacks[g], cb_list); + + (void) taskq_dispatch(tx->tx_commit_cb_taskq, (task_func_t *) + txg_do_callbacks, cb_list, TQ_SLEEP); + } +} + +static void txg_sync_thread(dsl_pool_t *dp) { + spa_t *spa = dp->dp_spa; tx_state_t *tx = &dp->dp_tx; callb_cpr_t cpr; uint64_t start, delta; @@ -293,20 +366,19 @@ txg_sync_thread(dsl_pool_t *dp) uint64_t txg; /* - * We sync when we're scrubbing, there's someone waiting + * We sync when we're scanning, there's someone waiting * on us, or the quiesce thread has handed off a txg to * us, or we have reached our timeout. */ timer = (delta >= timeout ? 0 : timeout - delta); - while ((dp->dp_scrub_func == SCRUB_FUNC_NONE || - spa_shutting_down(dp->dp_spa)) && + while (!dsl_scan_active(dp->dp_scan) && !tx->tx_exiting && timer > 0 && tx->tx_synced_txg >= tx->tx_sync_txg_waiting && tx->tx_quiesced_txg == 0) { dprintf("waiting; tx_synced=%llu waiting=%llu dp=%p\n", tx->tx_synced_txg, tx->tx_sync_txg_waiting, dp); txg_thread_wait(tx, &cpr, &tx->tx_sync_more_cv, timer); - delta = lbolt - start; + delta = ddi_get_lbolt() - start; timer = (delta > timeout ? 0 : timeout - delta); } @@ -324,8 +396,6 @@ txg_sync_thread(dsl_pool_t *dp) if (tx->tx_exiting) txg_thread_exit(tx, &cpr, &tx->tx_sync_thread); - rw_enter(&tx->tx_suspend, RW_WRITER); - /* * Consume the quiesced txg which has been handed off to * us. This may cause the quiescing thread to now be @@ -335,22 +405,24 @@ txg_sync_thread(dsl_pool_t *dp) tx->tx_quiesced_txg = 0; tx->tx_syncing_txg = txg; cv_broadcast(&tx->tx_quiesce_more_cv); - rw_exit(&tx->tx_suspend); dprintf("txg=%llu quiesce_txg=%llu sync_txg=%llu\n", txg, tx->tx_quiesce_txg_waiting, tx->tx_sync_txg_waiting); mutex_exit(&tx->tx_sync_lock); - start = lbolt; - spa_sync(dp->dp_spa, txg); - delta = lbolt - start; + start = ddi_get_lbolt(); + spa_sync(spa, txg); + delta = ddi_get_lbolt() - start; mutex_enter(&tx->tx_sync_lock); - rw_enter(&tx->tx_suspend, RW_WRITER); tx->tx_synced_txg = txg; tx->tx_syncing_txg = 0; - rw_exit(&tx->tx_suspend); cv_broadcast(&tx->tx_sync_done_cv); + + /* + * Dispatch commit callbacks to worker threads. + */ + txg_dispatch_callbacks(dp, txg); } } @@ -407,7 +479,7 @@ void txg_delay(dsl_pool_t *dp, uint64_t txg, int ticks) { tx_state_t *tx = &dp->dp_tx; - int timeout = lbolt + ticks; + int timeout = ddi_get_lbolt() + ticks; /* don't delay if this txg could transition to quiesing immediately */ if (tx->tx_open_txg > txg || @@ -420,7 +492,7 @@ txg_delay(dsl_pool_t *dp, uint64_t txg, int ticks) return; } - while (lbolt < timeout && + while (ddi_get_lbolt() < timeout && tx->tx_syncing_txg < txg-1 && !txg_stalled(dp)) (void) cv_timedwait(&tx->tx_quiesce_more_cv, &tx->tx_sync_lock, timeout); @@ -436,7 +508,7 @@ txg_wait_synced(dsl_pool_t *dp, uint64_t txg) mutex_enter(&tx->tx_sync_lock); ASSERT(tx->tx_threads == 2); if (txg == 0) - txg = tx->tx_open_txg; + txg = tx->tx_open_txg + TXG_DEFER_SIZE; if (tx->tx_sync_txg_waiting < txg) tx->tx_sync_txg_waiting = txg; dprintf("txg=%llu quiesce_txg=%llu sync_txg=%llu\n", @@ -487,21 +559,6 @@ txg_sync_waiting(dsl_pool_t *dp) tx->tx_quiesced_txg != 0); } -void -txg_suspend(dsl_pool_t *dp) -{ - tx_state_t *tx = &dp->dp_tx; - /* XXX some code paths suspend when they are already suspended! */ - rw_enter(&tx->tx_suspend, RW_READER); -} - -void -txg_resume(dsl_pool_t *dp) -{ - tx_state_t *tx = &dp->dp_tx; - rw_exit(&tx->tx_suspend); -} - /* * Per-txg object lists. */ @@ -559,6 +616,34 @@ txg_list_add(txg_list_t *tl, void *p, uint64_t txg) } /* + * Add an entry to the end of the list (walks list to find end). + * Returns 0 if it's a new entry, 1 if it's already there. + */ +int +txg_list_add_tail(txg_list_t *tl, void *p, uint64_t txg) +{ + int t = txg & TXG_MASK; + txg_node_t *tn = (txg_node_t *)((char *)p + tl->tl_offset); + int already_on_list; + + mutex_enter(&tl->tl_lock); + already_on_list = tn->tn_member[t]; + if (!already_on_list) { + txg_node_t **tp; + + for (tp = &tl->tl_head[t]; *tp != NULL; tp = &(*tp)->tn_next[t]) + continue; + + tn->tn_member[t] = 1; + tn->tn_next[t] = NULL; + *tp = tn; + } + mutex_exit(&tl->tl_lock); + + return (already_on_list); +} + +/* * Remove the head of the list and return it. */ void * diff --git a/module/zfs/uberblock.c b/module/zfs/uberblock.c index 34d7e0c3a..692cda137 100644 --- a/module/zfs/uberblock.c +++ b/module/zfs/uberblock.c @@ -19,12 +19,9 @@ * CDDL HEADER END */ /* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #include <sys/uberblock_impl.h> #include <sys/vdev_impl.h> @@ -58,6 +55,7 @@ uberblock_update(uberblock_t *ub, vdev_t *rvd, uint64_t txg) ub->ub_txg = txg; ub->ub_guid_sum = rvd->vdev_guid_sum; ub->ub_timestamp = gethrestime_sec(); + ub->ub_software_version = SPA_VERSION; return (ub->ub_rootbp.blk_birth == txg); } diff --git a/module/zfs/vdev.c b/module/zfs/vdev.c index bb5024f98..a61f29b8e 100644 --- a/module/zfs/vdev.c +++ b/module/zfs/vdev.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -40,6 +39,7 @@ #include <sys/fs/zfs.h> #include <sys/arc.h> #include <sys/zil.h> +#include <sys/dsl_scan.h> /* * Virtual device management. @@ -54,6 +54,7 @@ static vdev_ops_t *vdev_ops_table[] = { &vdev_disk_ops, &vdev_file_ops, &vdev_missing_ops, + &vdev_hole_ops, NULL }; @@ -281,7 +282,7 @@ vdev_compact_children(vdev_t *pvd) /* * Allocate and minimally initialize a vdev_t. */ -static vdev_t * +vdev_t * vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, vdev_ops_t *ops) { vdev_t *vd; @@ -293,21 +294,18 @@ vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, vdev_ops_t *ops) spa->spa_root_vdev = vd; } - if (guid == 0) { + if (guid == 0 && ops != &vdev_hole_ops) { if (spa->spa_root_vdev == vd) { /* * The root vdev's guid will also be the pool guid, * which must be unique among all pools. */ - while (guid == 0 || spa_guid_exists(guid, 0)) - guid = spa_get_random(-1ULL); + guid = spa_generate_guid(NULL); } else { /* * Any other vdev's guid must be unique within the pool. */ - while (guid == 0 || - spa_guid_exists(spa_guid(spa), guid)) - guid = spa_get_random(-1ULL); + guid = spa_generate_guid(spa); } ASSERT(!spa_guid_exists(spa_guid(spa), guid)); } @@ -318,6 +316,7 @@ vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, vdev_ops_t *ops) vd->vdev_guid_sum = guid; vd->vdev_ops = ops; vd->vdev_state = VDEV_STATE_CLOSED; + vd->vdev_ishole = (ops == &vdev_hole_ops); mutex_init(&vd->vdev_dtl_lock, NULL, MUTEX_DEFAULT, NULL); mutex_init(&vd->vdev_stat_lock, NULL, MUTEX_DEFAULT, NULL); @@ -397,6 +396,9 @@ vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, uint_t id, if (islog && spa_version(spa) < SPA_VERSION_SLOGS) return (ENOTSUP); + if (ops == &vdev_hole_ops && spa_version(spa) < SPA_VERSION_HOLES) + return (ENOTSUP); + /* * Set the nparity property for RAID-Z vdevs. */ @@ -404,10 +406,7 @@ vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, uint_t id, if (ops == &vdev_raidz_ops) { if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY, &nparity) == 0) { - /* - * Currently, we can only support 3 parity devices. - */ - if (nparity == 0 || nparity > 3) + if (nparity == 0 || nparity > VDEV_RAIDZ_MAXPARITY) return (EINVAL); /* * Previous versions could only support 1 or 2 parity @@ -472,15 +471,33 @@ vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, uint_t id, (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ASHIFT, &vd->vdev_ashift); /* + * Retrieve the vdev creation time. + */ + (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_CREATE_TXG, + &vd->vdev_crtxg); + + /* * If we're a top-level vdev, try to load the allocation parameters. */ - if (parent && !parent->vdev_parent && alloctype == VDEV_ALLOC_LOAD) { + if (parent && !parent->vdev_parent && + (alloctype == VDEV_ALLOC_LOAD || alloctype == VDEV_ALLOC_SPLIT)) { (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_METASLAB_ARRAY, &vd->vdev_ms_array); (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_METASLAB_SHIFT, &vd->vdev_ms_shift); (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ASIZE, &vd->vdev_asize); + (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVING, + &vd->vdev_removing); + } + + if (parent && !parent->vdev_parent) { + ASSERT(alloctype == VDEV_ALLOC_LOAD || + alloctype == VDEV_ALLOC_ADD || + alloctype == VDEV_ALLOC_SPLIT || + alloctype == VDEV_ALLOC_ROOTPOOL); + vd->vdev_mg = metaslab_group_create(islog ? + spa_log_class(spa) : spa_normal_class(spa), vd); } /* @@ -510,15 +527,27 @@ vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, uint_t id, /* * When importing a pool, we want to ignore the persistent fault * state, as the diagnosis made on another system may not be - * valid in the current context. + * valid in the current context. Local vdevs will + * remain in the faulted state. */ - if (spa->spa_load_state == SPA_LOAD_OPEN) { + if (spa_load_state(spa) == SPA_LOAD_OPEN) { (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &vd->vdev_faulted); (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_DEGRADED, &vd->vdev_degraded); (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &vd->vdev_removed); + + if (vd->vdev_faulted || vd->vdev_degraded) { + char *aux; + + vd->vdev_label_aux = + VDEV_AUX_ERR_EXCEEDED; + if (nvlist_lookup_string(nv, + ZPOOL_CONFIG_AUX_STATE, &aux) == 0 && + strcmp(aux, "external") == 0) + vd->vdev_label_aux = VDEV_AUX_EXTERNAL; + } } } @@ -544,6 +573,7 @@ vdev_free(vdev_t *vd) vdev_close(vd); ASSERT(!list_link_active(&vd->vdev_config_dirty_node)); + ASSERT(!list_link_active(&vd->vdev_state_dirty_node)); /* * Free all children. @@ -557,8 +587,10 @@ vdev_free(vdev_t *vd) /* * Discard allocation state. */ - if (vd == vd->vdev_top) + if (vd->vdev_mg != NULL) { vdev_metaslab_fini(vd); + metaslab_group_destroy(vd->vdev_mg); + } ASSERT3U(vd->vdev_stat.vs_space, ==, 0); ASSERT3U(vd->vdev_stat.vs_dspace, ==, 0); @@ -705,6 +737,7 @@ vdev_add_parent(vdev_t *cvd, vdev_ops_t *ops) mvd->vdev_min_asize = cvd->vdev_min_asize; mvd->vdev_ashift = cvd->vdev_ashift; mvd->vdev_state = cvd->vdev_state; + mvd->vdev_crtxg = cvd->vdev_crtxg; vdev_remove_child(pvd, cvd); vdev_add_child(pvd, mvd); @@ -746,6 +779,7 @@ vdev_remove_parent(vdev_t *cvd) */ if (mvd->vdev_top == mvd) { uint64_t guid_delta = mvd->vdev_guid - cvd->vdev_guid; + cvd->vdev_orig_guid = cvd->vdev_guid; cvd->vdev_guid += guid_delta; cvd->vdev_guid_sum += guid_delta; } @@ -765,16 +799,22 @@ vdev_metaslab_init(vdev_t *vd, uint64_t txg) { spa_t *spa = vd->vdev_spa; objset_t *mos = spa->spa_meta_objset; - metaslab_class_t *mc; uint64_t m; uint64_t oldc = vd->vdev_ms_count; uint64_t newc = vd->vdev_asize >> vd->vdev_ms_shift; metaslab_t **mspp; int error; - if (vd->vdev_ms_shift == 0) /* not being allocated from yet */ + ASSERT(txg == 0 || spa_config_held(spa, SCL_ALLOC, RW_WRITER)); + + /* + * This vdev is not being allocated from yet or is a hole. + */ + if (vd->vdev_ms_shift == 0) return (0); + ASSERT(!vd->vdev_ishole); + /* * Compute the raidz-deflation ratio. Note, we hard-code * in 128k (1 << 17) because it is the current "typical" blocksize. @@ -786,14 +826,6 @@ vdev_metaslab_init(vdev_t *vd, uint64_t txg) ASSERT(oldc <= newc); - if (vd->vdev_islog) - mc = spa->spa_log_class; - else - mc = spa->spa_normal_class; - - if (vd->vdev_mg == NULL) - vd->vdev_mg = metaslab_group_create(mc, vd); - mspp = kmem_zalloc(newc * sizeof (*mspp), KM_SLEEP); if (oldc != 0) { @@ -828,6 +860,20 @@ vdev_metaslab_init(vdev_t *vd, uint64_t txg) m << vd->vdev_ms_shift, 1ULL << vd->vdev_ms_shift, txg); } + if (txg == 0) + spa_config_enter(spa, SCL_ALLOC, FTAG, RW_WRITER); + + /* + * If the vdev is being removed we don't activate + * the metaslabs since we want to ensure that no new + * allocations are performed on this device. + */ + if (oldc == 0 && !vd->vdev_removing) + metaslab_group_activate(vd->vdev_mg); + + if (txg == 0) + spa_config_exit(spa, SCL_ALLOC, FTAG); + return (0); } @@ -838,6 +884,7 @@ vdev_metaslab_fini(vdev_t *vd) uint64_t count = vd->vdev_ms_count; if (vd->vdev_ms != NULL) { + metaslab_group_passivate(vd->vdev_mg); for (m = 0; m < count; m++) if (vd->vdev_ms[m] != NULL) metaslab_fini(vd->vdev_ms[m]); @@ -965,6 +1012,10 @@ vdev_probe(vdev_t *vd, zio_t *zio) vdev_probe_done, vps, vps->vps_flags | ZIO_FLAG_DONT_PROPAGATE); + /* + * We can't change the vdev state in this context, so we + * kick off an async task to do it on our behalf. + */ if (zio != NULL) { vd->vdev_probe_wanted = B_TRUE; spa_async_request(spa, SPA_ASYNC_PROBE); @@ -1007,12 +1058,35 @@ vdev_open_child(void *arg) vd->vdev_open_thread = NULL; } +boolean_t +vdev_uses_zvols(vdev_t *vd) +{ + if (vd->vdev_path && strncmp(vd->vdev_path, ZVOL_DIR, + strlen(ZVOL_DIR)) == 0) + return (B_TRUE); + for (int c = 0; c < vd->vdev_children; c++) + if (vdev_uses_zvols(vd->vdev_child[c])) + return (B_TRUE); + return (B_FALSE); +} + void vdev_open_children(vdev_t *vd) { taskq_t *tq; int children = vd->vdev_children; + /* + * in order to handle pools on top of zvols, do the opens + * in a single thread so that the same thread holds the + * spa_namespace_lock + */ + if (vdev_uses_zvols(vd)) { + for (int c = 0; c < children; c++) + vd->vdev_child[c]->vdev_open_error = + vdev_open(vd->vdev_child[c]); + return; + } tq = taskq_create("vdev_open", children, minclsyspri, children, children, TASKQ_PREPOPULATE); @@ -1046,10 +1120,16 @@ vdev_open(vdev_t *vd) vd->vdev_cant_write = B_FALSE; vd->vdev_min_asize = vdev_get_min_asize(vd); + /* + * If this vdev is not removed, check its fault status. If it's + * faulted, bail out of the open. + */ if (!vd->vdev_removed && vd->vdev_faulted) { ASSERT(vd->vdev_children == 0); + ASSERT(vd->vdev_label_aux == VDEV_AUX_ERR_EXCEEDED || + vd->vdev_label_aux == VDEV_AUX_EXTERNAL); vdev_set_state(vd, B_TRUE, VDEV_STATE_FAULTED, - VDEV_AUX_ERR_EXCEEDED); + vd->vdev_label_aux); return (ENXIO); } else if (vd->vdev_offline) { ASSERT(vd->vdev_children == 0); @@ -1059,6 +1139,11 @@ vdev_open(vdev_t *vd) error = vd->vdev_ops->vdev_op_open(vd, &osize, &ashift); + /* + * Reset the vdev_reopening flag so that we actually close + * the vdev on error. + */ + vd->vdev_reopening = B_FALSE; if (zio_injection_enabled && error == 0) error = zio_handle_device_injection(vd, NULL, ENXIO); @@ -1074,14 +1159,33 @@ vdev_open(vdev_t *vd) vd->vdev_removed = B_FALSE; + /* + * Recheck the faulted flag now that we have confirmed that + * the vdev is accessible. If we're faulted, bail. + */ + if (vd->vdev_faulted) { + ASSERT(vd->vdev_children == 0); + ASSERT(vd->vdev_label_aux == VDEV_AUX_ERR_EXCEEDED || + vd->vdev_label_aux == VDEV_AUX_EXTERNAL); + vdev_set_state(vd, B_TRUE, VDEV_STATE_FAULTED, + vd->vdev_label_aux); + return (ENXIO); + } + if (vd->vdev_degraded) { ASSERT(vd->vdev_children == 0); vdev_set_state(vd, B_TRUE, VDEV_STATE_DEGRADED, VDEV_AUX_ERR_EXCEEDED); } else { - vd->vdev_state = VDEV_STATE_HEALTHY; + vdev_set_state(vd, B_TRUE, VDEV_STATE_HEALTHY, 0); } + /* + * For hole or missing vdevs we just return success. + */ + if (vd->vdev_ishole || vd->vdev_ops == &vdev_missing_ops) + return (0); + for (int c = 0; c < vd->vdev_children; c++) { if (vd->vdev_child[c]->vdev_state != VDEV_STATE_HEALTHY) { vdev_set_state(vd, B_TRUE, VDEV_STATE_DEGRADED, @@ -1157,8 +1261,8 @@ vdev_open(vdev_t *vd) */ if (vd->vdev_ops->vdev_op_leaf && (error = zio_wait(vdev_probe(vd, NULL))) != 0) { - vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, - VDEV_AUX_IO_FAILURE); + vdev_set_state(vd, B_TRUE, VDEV_STATE_FAULTED, + VDEV_AUX_ERR_EXCEEDED); return (error); } @@ -1189,7 +1293,7 @@ vdev_validate(vdev_t *vd) { spa_t *spa = vd->vdev_spa; nvlist_t *label; - uint64_t guid, top_guid; + uint64_t guid = 0, top_guid; uint64_t state; for (int c = 0; c < vd->vdev_children; c++) @@ -1202,6 +1306,8 @@ vdev_validate(vdev_t *vd) * overwrite the previous state. */ if (vd->vdev_ops->vdev_op_leaf && vdev_readable(vd)) { + uint64_t aux_guid = 0; + nvlist_t *nvl; if ((label = vdev_label_read_config(vd)) == NULL) { vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, @@ -1209,6 +1315,18 @@ vdev_validate(vdev_t *vd) return (0); } + /* + * Determine if this vdev has been split off into another + * pool. If so, then refuse to open it. + */ + if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_SPLIT_GUID, + &aux_guid) == 0 && aux_guid == spa_guid(spa)) { + vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, + VDEV_AUX_SPLIT_POOL); + nvlist_free(label); + return (0); + } + if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || guid != spa_guid(spa)) { vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, @@ -1217,6 +1335,11 @@ vdev_validate(vdev_t *vd) return (0); } + if (nvlist_lookup_nvlist(label, ZPOOL_CONFIG_VDEV_TREE, &nvl) + != 0 || nvlist_lookup_uint64(nvl, ZPOOL_CONFIG_ORIG_GUID, + &aux_guid) != 0) + aux_guid = 0; + /* * If this vdev just became a top-level vdev because its * sibling was detached, it will have adopted the parent's @@ -1224,12 +1347,16 @@ vdev_validate(vdev_t *vd) * Fortunately, either version of the label will have the * same top guid, so if we're a top-level vdev, we can * safely compare to that instead. + * + * If we split this vdev off instead, then we also check the + * original pool's guid. We don't want to consider the vdev + * corrupt if it is partway through a split operation. */ if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &guid) != 0 || nvlist_lookup_uint64(label, ZPOOL_CONFIG_TOP_GUID, &top_guid) != 0 || - (vd->vdev_guid != guid && + ((vd->vdev_guid != guid && vd->vdev_guid != aux_guid) && (vd->vdev_guid != top_guid || vd != vd->vdev_top))) { vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, VDEV_AUX_CORRUPT_DATA); @@ -1252,7 +1379,7 @@ vdev_validate(vdev_t *vd) * state of the pool. */ if (!spa->spa_load_verbatim && - spa->spa_load_state == SPA_LOAD_OPEN && + spa_load_state(spa) == SPA_LOAD_OPEN && state != POOL_STATE_ACTIVE) return (EBADF); @@ -1275,9 +1402,17 @@ void vdev_close(vdev_t *vd) { spa_t *spa = vd->vdev_spa; + vdev_t *pvd = vd->vdev_parent; ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); + /* + * If our parent is reopening, then we are as well, unless we are + * going offline. + */ + if (pvd != NULL && pvd->vdev_reopening) + vd->vdev_reopening = (pvd->vdev_reopening && !vd->vdev_offline); + vd->vdev_ops->vdev_op_close(vd); vdev_cache_purge(vd); @@ -1297,12 +1432,49 @@ vdev_close(vdev_t *vd) } void +vdev_hold(vdev_t *vd) +{ + spa_t *spa = vd->vdev_spa; + + ASSERT(spa_is_root(spa)); + if (spa->spa_state == POOL_STATE_UNINITIALIZED) + return; + + for (int c = 0; c < vd->vdev_children; c++) + vdev_hold(vd->vdev_child[c]); + + if (vd->vdev_ops->vdev_op_leaf) + vd->vdev_ops->vdev_op_hold(vd); +} + +void +vdev_rele(vdev_t *vd) +{ + spa_t *spa = vd->vdev_spa; + + ASSERT(spa_is_root(spa)); + for (int c = 0; c < vd->vdev_children; c++) + vdev_rele(vd->vdev_child[c]); + + if (vd->vdev_ops->vdev_op_leaf) + vd->vdev_ops->vdev_op_rele(vd); +} + +/* + * Reopen all interior vdevs and any unopened leaves. We don't actually + * reopen leaf vdevs which had previously been opened as they might deadlock + * on the spa_config_lock. Instead we only obtain the leaf's physical size. + * If the leaf has never been opened then open it, as usual. + */ +void vdev_reopen(vdev_t *vd) { spa_t *spa = vd->vdev_spa; ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); + /* set the reopening flag unless we're taking the vdev offline */ + vd->vdev_reopening = !vd->vdev_offline; vdev_close(vd); (void) vdev_open(vd); @@ -1370,6 +1542,7 @@ void vdev_dirty(vdev_t *vd, int flags, void *arg, uint64_t txg) { ASSERT(vd == vd->vdev_top); + ASSERT(!vd->vdev_ishole); ASSERT(ISP2(flags)); if (flags & VDD_METASLAB) @@ -1385,7 +1558,7 @@ vdev_dirty(vdev_t *vd, int flags, void *arg, uint64_t txg) * DTLs. * * A vdev's DTL (dirty time log) is the set of transaction groups for which - * the vdev has less than perfect replication. There are three kinds of DTL: + * the vdev has less than perfect replication. There are four kinds of DTL: * * DTL_MISSING: txgs for which the vdev has no valid copies of the data * @@ -1479,14 +1652,16 @@ vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg, int scrub_done) vdev_dtl_reassess(vd->vdev_child[c], txg, scrub_txg, scrub_done); - if (vd == spa->spa_root_vdev) + if (vd == spa->spa_root_vdev || vd->vdev_ishole || vd->vdev_aux) return; if (vd->vdev_ops->vdev_op_leaf) { + dsl_scan_t *scn = spa->spa_dsl_pool->dp_scan; + mutex_enter(&vd->vdev_dtl_lock); if (scrub_txg != 0 && - (spa->spa_scrub_started || spa->spa_scrub_errors == 0)) { - /* XXX should check scrub_done? */ + (spa->spa_scrub_started || + (scn && scn->scn_phys.scn_errors == 0))) { /* * We completed a scrub up to scrub_txg. If we * did it without rebooting, then the scrub dtl @@ -1534,6 +1709,8 @@ vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg, int scrub_done) mutex_enter(&vd->vdev_dtl_lock); for (int t = 0; t < DTL_TYPES; t++) { + /* account for child's outage in parent's missing map */ + int s = (t == DTL_MISSING) ? DTL_OUTAGE: t; if (t == DTL_SCRUB) continue; /* leaf vdevs only */ if (t == DTL_PARTIAL) @@ -1546,7 +1723,7 @@ vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg, int scrub_done) for (int c = 0; c < vd->vdev_children; c++) { vdev_t *cvd = vd->vdev_child[c]; mutex_enter(&cvd->vdev_dtl_lock); - space_map_ref_add_map(&reftree, &cvd->vdev_dtl[t], 1); + space_map_ref_add_map(&reftree, &cvd->vdev_dtl[s], 1); mutex_exit(&cvd->vdev_dtl_lock); } space_map_ref_generate_map(&reftree, &vd->vdev_dtl[t], minref); @@ -1569,6 +1746,8 @@ vdev_dtl_load(vdev_t *vd) if (smo->smo_object == 0) return (0); + ASSERT(!vd->vdev_ishole); + if ((error = dmu_bonus_hold(mos, smo->smo_object, FTAG, &db)) != 0) return (error); @@ -1596,6 +1775,8 @@ vdev_dtl_sync(vdev_t *vd, uint64_t txg) dmu_buf_t *db; dmu_tx_t *tx; + ASSERT(!vd->vdev_ishole); + tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); if (vd->vdev_detached) { @@ -1732,7 +1913,7 @@ vdev_load(vdev_t *vd) /* * If this is a top-level vdev, initialize its metaslabs. */ - if (vd == vd->vdev_top && + if (vd == vd->vdev_top && !vd->vdev_ishole && (vd->vdev_ashift == 0 || vd->vdev_asize == 0 || vdev_metaslab_init(vd, 0) != 0)) vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, @@ -1789,12 +1970,54 @@ vdev_validate_aux(vdev_t *vd) } void +vdev_remove(vdev_t *vd, uint64_t txg) +{ + spa_t *spa = vd->vdev_spa; + objset_t *mos = spa->spa_meta_objset; + dmu_tx_t *tx; + + tx = dmu_tx_create_assigned(spa_get_dsl(spa), txg); + + if (vd->vdev_dtl_smo.smo_object) { + ASSERT3U(vd->vdev_dtl_smo.smo_alloc, ==, 0); + (void) dmu_object_free(mos, vd->vdev_dtl_smo.smo_object, tx); + vd->vdev_dtl_smo.smo_object = 0; + } + + if (vd->vdev_ms != NULL) { + for (int m = 0; m < vd->vdev_ms_count; m++) { + metaslab_t *msp = vd->vdev_ms[m]; + + if (msp == NULL || msp->ms_smo.smo_object == 0) + continue; + + ASSERT3U(msp->ms_smo.smo_alloc, ==, 0); + (void) dmu_object_free(mos, msp->ms_smo.smo_object, tx); + msp->ms_smo.smo_object = 0; + } + } + + if (vd->vdev_ms_array) { + (void) dmu_object_free(mos, vd->vdev_ms_array, tx); + vd->vdev_ms_array = 0; + vd->vdev_ms_shift = 0; + } + dmu_tx_commit(tx); +} + +void vdev_sync_done(vdev_t *vd, uint64_t txg) { metaslab_t *msp; + boolean_t reassess = !txg_list_empty(&vd->vdev_ms_list, TXG_CLEAN(txg)); + + ASSERT(!vd->vdev_ishole); while (msp = txg_list_remove(&vd->vdev_ms_list, TXG_CLEAN(txg))) metaslab_sync_done(msp, txg); + + if (reassess) + metaslab_sync_reassess(vd->vdev_mg); } void @@ -1805,6 +2028,8 @@ vdev_sync(vdev_t *vd, uint64_t txg) metaslab_t *msp; dmu_tx_t *tx; + ASSERT(!vd->vdev_ishole); + if (vd->vdev_ms_array == 0 && vd->vdev_ms_shift != 0) { ASSERT(vd == vd->vdev_top); tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); @@ -1815,6 +2040,12 @@ vdev_sync(vdev_t *vd, uint64_t txg) dmu_tx_commit(tx); } + /* + * Remove the metadata associated with this vdev once it's empty. + */ + if (vd->vdev_stat.vs_alloc == 0 && vd->vdev_removing) + vdev_remove(vd, txg); + while ((msp = txg_list_remove(&vd->vdev_ms_list, txg)) != NULL) { metaslab_sync(msp, txg); (void) txg_list_add(&vd->vdev_ms_list, msp, TXG_CLEAN(txg)); @@ -1837,11 +2068,11 @@ vdev_psize_to_asize(vdev_t *vd, uint64_t psize) * not be opened, and no I/O is attempted. */ int -vdev_fault(spa_t *spa, uint64_t guid) +vdev_fault(spa_t *spa, uint64_t guid, vdev_aux_t aux) { vdev_t *vd; - spa_vdev_state_enter(spa); + spa_vdev_state_enter(spa, SCL_NONE); if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) return (spa_vdev_state_exit(spa, NULL, ENODEV)); @@ -1850,18 +2081,25 @@ vdev_fault(spa_t *spa, uint64_t guid) return (spa_vdev_state_exit(spa, NULL, ENOTSUP)); /* + * We don't directly use the aux state here, but if we do a + * vdev_reopen(), we need this value to be present to remember why we + * were faulted. + */ + vd->vdev_label_aux = aux; + + /* * Faulted state takes precedence over degraded. */ + vd->vdev_delayed_close = B_FALSE; vd->vdev_faulted = 1ULL; vd->vdev_degraded = 0ULL; - vdev_set_state(vd, B_FALSE, VDEV_STATE_FAULTED, VDEV_AUX_ERR_EXCEEDED); + vdev_set_state(vd, B_FALSE, VDEV_STATE_FAULTED, aux); /* - * If marking the vdev as faulted cause the top-level vdev to become - * unavailable, then back off and simply mark the vdev as degraded - * instead. + * If this device has the only valid copy of the data, then + * back off and simply mark the vdev as degraded instead. */ - if (vdev_is_dead(vd->vdev_top) && vd->vdev_aux == NULL) { + if (!vd->vdev_islog && vd->vdev_aux == NULL && vdev_dtl_required(vd)) { vd->vdev_degraded = 1ULL; vd->vdev_faulted = 0ULL; @@ -1871,10 +2109,8 @@ vdev_fault(spa_t *spa, uint64_t guid) */ vdev_reopen(vd); - if (vdev_readable(vd)) { - vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, - VDEV_AUX_ERR_EXCEEDED); - } + if (vdev_readable(vd)) + vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, aux); } return (spa_vdev_state_exit(spa, vd, 0)); @@ -1886,11 +2122,11 @@ vdev_fault(spa_t *spa, uint64_t guid) * as I/O is concerned. */ int -vdev_degrade(spa_t *spa, uint64_t guid) +vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux) { vdev_t *vd; - spa_vdev_state_enter(spa); + spa_vdev_state_enter(spa, SCL_NONE); if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) return (spa_vdev_state_exit(spa, NULL, ENODEV)); @@ -1907,7 +2143,7 @@ vdev_degrade(spa_t *spa, uint64_t guid) vd->vdev_degraded = 1ULL; if (!vdev_is_dead(vd)) vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, - VDEV_AUX_ERR_EXCEEDED); + aux); return (spa_vdev_state_exit(spa, vd, 0)); } @@ -1923,7 +2159,7 @@ vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, vdev_state_t *newstate) { vdev_t *vd, *tvd, *pvd, *rvd = spa->spa_root_vdev; - spa_vdev_state_enter(spa); + spa_vdev_state_enter(spa, SCL_NONE); if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) return (spa_vdev_state_exit(spa, NULL, ENODEV)); @@ -1969,13 +2205,16 @@ vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, vdev_state_t *newstate) return (spa_vdev_state_exit(spa, vd, 0)); } -int -vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags) +static int +vdev_offline_locked(spa_t *spa, uint64_t guid, uint64_t flags) { vdev_t *vd, *tvd; - int error; + int error = 0; + uint64_t generation; + metaslab_group_t *mg; - spa_vdev_state_enter(spa); +top: + spa_vdev_state_enter(spa, SCL_ALLOC); if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) return (spa_vdev_state_exit(spa, NULL, ENODEV)); @@ -1984,6 +2223,8 @@ vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags) return (spa_vdev_state_exit(spa, NULL, ENOTSUP)); tvd = vd->vdev_top; + mg = tvd->vdev_mg; + generation = spa->spa_config_generation + 1; /* * If the device isn't already offline, try to offline it. @@ -1999,6 +2240,37 @@ vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags) return (spa_vdev_state_exit(spa, NULL, EBUSY)); /* + * If the top-level is a slog and it has had allocations + * then proceed. We check that the vdev's metaslab group + * is not NULL since it's possible that we may have just + * added this vdev but not yet initialized its metaslabs. + */ + if (tvd->vdev_islog && mg != NULL) { + /* + * Prevent any future allocations. + */ + metaslab_group_passivate(mg); + (void) spa_vdev_state_exit(spa, vd, 0); + + error = spa_offline_log(spa); + + spa_vdev_state_enter(spa, SCL_ALLOC); + + /* + * Check to see if the config has changed. + */ + if (error || generation != spa->spa_config_generation) { + metaslab_group_activate(mg); + if (error) + return (spa_vdev_state_exit(spa, + vd, error)); + (void) spa_vdev_state_exit(spa, vd, 0); + goto top; + } + ASSERT3U(tvd->vdev_stat.vs_alloc, ==, 0); + } + + /* * Offline this device and reopen its top-level vdev. * If the top-level vdev is a log device then just offline * it. Otherwise, if this action results in the top-level @@ -2013,28 +2285,30 @@ vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags) vdev_reopen(tvd); return (spa_vdev_state_exit(spa, NULL, EBUSY)); } + + /* + * Add the device back into the metaslab rotor so that + * once we online the device it's open for business. + */ + if (tvd->vdev_islog && mg != NULL) + metaslab_group_activate(mg); } vd->vdev_tmpoffline = !!(flags & ZFS_OFFLINE_TEMPORARY); - if (!tvd->vdev_islog || !vdev_is_dead(tvd)) - return (spa_vdev_state_exit(spa, vd, 0)); + return (spa_vdev_state_exit(spa, vd, 0)); +} - (void) spa_vdev_state_exit(spa, vd, 0); +int +vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags) +{ + int error; - error = dmu_objset_find(spa_name(spa), zil_vdev_offline, - NULL, DS_FIND_CHILDREN); - if (error) { - (void) vdev_online(spa, guid, 0, NULL); - return (error); - } - /* - * If we successfully offlined the log device then we need to - * sync out the current txg so that the "stubby" block can be - * removed by zil_sync(). - */ - txg_wait_synced(spa->spa_dsl_pool, 0); - return (0); + mutex_enter(&spa->spa_vdev_top_lock); + error = vdev_offline_locked(spa, guid, flags); + mutex_exit(&spa->spa_vdev_top_lock); + + return (error); } /* @@ -2068,12 +2342,21 @@ vdev_clear(spa_t *spa, vdev_t *vd) if (vd->vdev_faulted || vd->vdev_degraded || !vdev_readable(vd) || !vdev_writeable(vd)) { + /* + * When reopening in reponse to a clear event, it may be due to + * a fmadm repair request. In this case, if the device is + * still broken, we want to still post the ereport again. + */ + vd->vdev_forcefault = B_TRUE; + vd->vdev_faulted = vd->vdev_degraded = 0; vd->vdev_cant_read = B_FALSE; vd->vdev_cant_write = B_FALSE; vdev_reopen(vd); + vd->vdev_forcefault = B_FALSE; + if (vd != rvd) vdev_state_dirty(vd->vdev_top); @@ -2082,12 +2365,30 @@ vdev_clear(spa_t *spa, vdev_t *vd) spa_event_notify(spa, vd, ESC_ZFS_VDEV_CLEAR); } + + /* + * When clearing a FMA-diagnosed fault, we always want to + * unspare the device, as we assume that the original spare was + * done in response to the FMA fault. + */ + if (!vdev_is_dead(vd) && vd->vdev_parent != NULL && + vd->vdev_parent->vdev_ops == &vdev_spare_ops && + vd->vdev_parent->vdev_child[0] == vd) + vd->vdev_unspare = B_TRUE; } boolean_t vdev_is_dead(vdev_t *vd) { - return (vd->vdev_state < VDEV_STATE_DEGRADED); + /* + * Holes and missing devices are always considered "dead". + * This simplifies the code since we don't have to check for + * these types of devices in the various code paths. + * Instead we rely on the fact that we skip over dead devices + * before issuing I/O to them. + */ + return (vd->vdev_state < VDEV_STATE_DEGRADED || vd->vdev_ishole || + vd->vdev_ops == &vdev_missing_ops); } boolean_t @@ -2116,7 +2417,7 @@ vdev_allocatable(vdev_t *vd) * we're asking two separate questions about it. */ return (!(state < VDEV_STATE_DEGRADED && state != VDEV_STATE_CLOSED) && - !vd->vdev_cant_write); + !vd->vdev_cant_write && !vd->vdev_ishole); } boolean_t @@ -2146,7 +2447,6 @@ vdev_get_stats(vdev_t *vd, vdev_stat_t *vs) mutex_enter(&vd->vdev_stat_lock); bcopy(&vd->vdev_stat, vs, sizeof (*vs)); - vs->vs_scrub_errors = vd->vdev_spa->spa_scrub_errors; vs->vs_timestamp = gethrtime() - vs->vs_timestamp; vs->vs_state = vd->vdev_state; vs->vs_rsize = vdev_get_min_asize(vd); @@ -2168,7 +2468,7 @@ vdev_get_stats(vdev_t *vd, vdev_stat_t *vs) vs->vs_ops[t] += cvs->vs_ops[t]; vs->vs_bytes[t] += cvs->vs_bytes[t]; } - vs->vs_scrub_examined += cvs->vs_scrub_examined; + cvs->vs_scan_removing = cvd->vdev_removing; mutex_exit(&vd->vdev_stat_lock); } } @@ -2185,6 +2485,19 @@ vdev_clear_stats(vdev_t *vd) } void +vdev_scan_stat_init(vdev_t *vd) +{ + vdev_stat_t *vs = &vd->vdev_stat; + + for (int c = 0; c < vd->vdev_children; c++) + vdev_scan_stat_init(vd->vdev_child[c]); + + mutex_enter(&vd->vdev_stat_lock); + vs->vs_scan_processed = 0; + mutex_exit(&vd->vdev_stat_lock); +} + +void vdev_stat_update(zio_t *zio, uint64_t psize) { spa_t *spa = zio->io_spa; @@ -2228,8 +2541,17 @@ vdev_stat_update(zio_t *zio, uint64_t psize) mutex_enter(&vd->vdev_stat_lock); if (flags & ZIO_FLAG_IO_REPAIR) { - if (flags & ZIO_FLAG_SCRUB_THREAD) - vs->vs_scrub_repaired += psize; + if (flags & ZIO_FLAG_SCRUB_THREAD) { + dsl_scan_phys_t *scn_phys = + &spa->spa_dsl_pool->dp_scan->scn_phys; + uint64_t *processed = &scn_phys->scn_processed; + + /* XXX cleanup? */ + if (vd->vdev_ops->vdev_op_leaf) + atomic_add_64(processed, psize); + vs->vs_scan_processed += psize; + } + if (flags & ZIO_FLAG_SELF_HEAL) vs->vs_self_healed += psize; } @@ -2254,6 +2576,14 @@ vdev_stat_update(zio_t *zio, uint64_t psize) !(zio->io_flags & ZIO_FLAG_IO_RETRY)) return; + /* + * Intent logs writes won't propagate their error to the root + * I/O so don't mark these types of failures as pool-level + * errors. + */ + if (zio->io_vd == NULL && (zio->io_flags & ZIO_FLAG_DONT_PROPAGATE)) + return; + mutex_enter(&vd->vdev_stat_lock); if (type == ZIO_TYPE_READ && !vdev_is_dead(vd)) { if (zio->io_error == ECKSUM) @@ -2267,14 +2597,17 @@ vdev_stat_update(zio_t *zio, uint64_t psize) if (type == ZIO_TYPE_WRITE && txg != 0 && (!(flags & ZIO_FLAG_IO_REPAIR) || - (flags & ZIO_FLAG_SCRUB_THREAD))) { + (flags & ZIO_FLAG_SCRUB_THREAD) || + spa->spa_claiming)) { /* - * This is either a normal write (not a repair), or it's a - * repair induced by the scrub thread. In the normal case, - * we commit the DTL change in the same txg as the block - * was born. In the scrub-induced repair case, we know that - * scrubs run in first-pass syncing context, so we commit - * the DTL change in spa->spa_syncing_txg. + * This is either a normal write (not a repair), or it's + * a repair induced by the scrub thread, or it's a repair + * made by zil_claim() during spa_load() in the first txg. + * In the normal case, we commit the DTL change in the same + * txg as the block was born. In the scrub-induced repair + * case, we know that scrubs run in first-pass syncing context, + * so we commit the DTL change in spa_syncing_txg(spa). + * In the zil_claim() case, we commit in spa_first_txg(spa). * * We currently do not make DTL entries for failed spontaneous * self-healing writes triggered by normal (non-scrubbing) @@ -2287,9 +2620,12 @@ vdev_stat_update(zio_t *zio, uint64_t psize) ASSERT(flags & ZIO_FLAG_IO_REPAIR); ASSERT(spa_sync_pass(spa) == 1); vdev_dtl_dirty(vd, DTL_SCRUB, txg, 1); - commit_txg = spa->spa_syncing_txg; + commit_txg = spa_syncing_txg(spa); + } else if (spa->spa_claiming) { + ASSERT(flags & ZIO_FLAG_IO_REPAIR); + commit_txg = spa_first_txg(spa); } - ASSERT(commit_txg >= spa->spa_syncing_txg); + ASSERT(commit_txg >= spa_syncing_txg(spa)); if (vdev_dtl_contains(vd, DTL_MISSING, txg, 1)) return; for (pvd = vd; pvd != rvd; pvd = pvd->vdev_parent) @@ -2301,45 +2637,19 @@ vdev_stat_update(zio_t *zio, uint64_t psize) } } -void -vdev_scrub_stat_update(vdev_t *vd, pool_scrub_type_t type, boolean_t complete) -{ - vdev_stat_t *vs = &vd->vdev_stat; - - for (int c = 0; c < vd->vdev_children; c++) - vdev_scrub_stat_update(vd->vdev_child[c], type, complete); - - mutex_enter(&vd->vdev_stat_lock); - - if (type == POOL_SCRUB_NONE) { - /* - * Update completion and end time. Leave everything else alone - * so we can report what happened during the previous scrub. - */ - vs->vs_scrub_complete = complete; - vs->vs_scrub_end = gethrestime_sec(); - } else { - vs->vs_scrub_type = type; - vs->vs_scrub_complete = 0; - vs->vs_scrub_examined = 0; - vs->vs_scrub_repaired = 0; - vs->vs_scrub_start = gethrestime_sec(); - vs->vs_scrub_end = 0; - } - - mutex_exit(&vd->vdev_stat_lock); -} - /* - * Update the in-core space usage stats for this vdev and the root vdev. + * Update the in-core space usage stats for this vdev, its metaslab class, + * and the root vdev. */ void -vdev_space_update(vdev_t *vd, int64_t space_delta, int64_t alloc_delta, - boolean_t update_root) +vdev_space_update(vdev_t *vd, int64_t alloc_delta, int64_t defer_delta, + int64_t space_delta) { int64_t dspace_delta = space_delta; spa_t *spa = vd->vdev_spa; vdev_t *rvd = spa->spa_root_vdev; + metaslab_group_t *mg = vd->vdev_mg; + metaslab_class_t *mc = mg ? mg->mg_class : NULL; ASSERT(vd == vd->vdev_top); @@ -2355,28 +2665,26 @@ vdev_space_update(vdev_t *vd, int64_t space_delta, int64_t alloc_delta, vd->vdev_deflate_ratio; mutex_enter(&vd->vdev_stat_lock); - vd->vdev_stat.vs_space += space_delta; vd->vdev_stat.vs_alloc += alloc_delta; + vd->vdev_stat.vs_space += space_delta; vd->vdev_stat.vs_dspace += dspace_delta; mutex_exit(&vd->vdev_stat_lock); - if (update_root) { - ASSERT(rvd == vd->vdev_parent); - ASSERT(vd->vdev_ms_count != 0); - - /* - * Don't count non-normal (e.g. intent log) space as part of - * the pool's capacity. - */ - if (vd->vdev_mg->mg_class != spa->spa_normal_class) - return; - + if (mc == spa_normal_class(spa)) { mutex_enter(&rvd->vdev_stat_lock); - rvd->vdev_stat.vs_space += space_delta; rvd->vdev_stat.vs_alloc += alloc_delta; + rvd->vdev_stat.vs_space += space_delta; rvd->vdev_stat.vs_dspace += dspace_delta; mutex_exit(&rvd->vdev_stat_lock); } + + if (mc != NULL) { + ASSERT(rvd == vd->vdev_parent); + ASSERT(vd->vdev_ms_count != 0); + + metaslab_class_space_update(mc, + alloc_delta, defer_delta, space_delta, dspace_delta); + } } /* @@ -2428,7 +2736,7 @@ vdev_config_dirty(vdev_t *vd) * sketchy, but it will work. */ nvlist_free(aux[c]); - aux[c] = vdev_config_generate(spa, vd, B_TRUE, B_FALSE, B_TRUE); + aux[c] = vdev_config_generate(spa, vd, B_TRUE, 0); return; } @@ -2449,7 +2757,8 @@ vdev_config_dirty(vdev_t *vd) } else { ASSERT(vd == vd->vdev_top); - if (!list_link_active(&vd->vdev_config_dirty_node)) + if (!list_link_active(&vd->vdev_config_dirty_node) && + !vd->vdev_ishole) list_insert_head(&spa->spa_config_dirty_list, vd); } } @@ -2490,7 +2799,7 @@ vdev_state_dirty(vdev_t *vd) (dsl_pool_sync_context(spa_get_dsl(spa)) && spa_config_held(spa, SCL_STATE, RW_READER))); - if (!list_link_active(&vd->vdev_state_dirty_node)) + if (!list_link_active(&vd->vdev_state_dirty_node) && !vd->vdev_ishole) list_insert_head(&spa->spa_state_dirty_list, vd); } @@ -2523,6 +2832,12 @@ vdev_propagate_state(vdev_t *vd) for (int c = 0; c < vd->vdev_children; c++) { child = vd->vdev_child[c]; + /* + * Don't factor holes into the decision. + */ + if (child->vdev_ishole) + continue; + if (!vdev_readable(child) || (!vdev_writeable(child) && spa_writeable(spa))) { /* @@ -2586,15 +2901,31 @@ vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, vdev_aux_t aux) /* * If we are setting the vdev state to anything but an open state, then - * always close the underlying device. Otherwise, we keep accessible - * but invalid devices open forever. We don't call vdev_close() itself, - * because that implies some extra checks (offline, etc) that we don't - * want here. This is limited to leaf devices, because otherwise - * closing the device will affect other children. + * always close the underlying device unless the device has requested + * a delayed close (i.e. we're about to remove or fault the device). + * Otherwise, we keep accessible but invalid devices open forever. + * We don't call vdev_close() itself, because that implies some extra + * checks (offline, etc) that we don't want here. This is limited to + * leaf devices, because otherwise closing the device will affect other + * children. */ - if (vdev_is_dead(vd) && vd->vdev_ops->vdev_op_leaf) + if (!vd->vdev_delayed_close && vdev_is_dead(vd) && + vd->vdev_ops->vdev_op_leaf) vd->vdev_ops->vdev_op_close(vd); + /* + * If we have brought this vdev back into service, we need + * to notify fmd so that it can gracefully repair any outstanding + * cases due to a missing device. We do this in all cases, even those + * that probably don't correlate to a repaired fault. This is sure to + * catch all cases, and we let the zfs-retire agent sort it out. If + * this is a transient state it's OK, as the retire agent will + * double-check the state of the vdev before repairing it. + */ + if (state == VDEV_STATE_HEALTHY && vd->vdev_ops->vdev_op_leaf && + vd->vdev_prevstate != state) + zfs_post_state_change(spa, vd); + if (vd->vdev_removed && state == VDEV_STATE_CANT_OPEN && (aux == VDEV_AUX_OPEN_FAILED || vd->vdev_checkremove)) { @@ -2610,11 +2941,6 @@ vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, vdev_aux_t aux) vd->vdev_state = VDEV_STATE_REMOVED; vd->vdev_stat.vs_aux = VDEV_AUX_NONE; } else if (state == VDEV_STATE_REMOVED) { - /* - * Indicate to the ZFS DE that this device has been removed, and - * any recent errors should be ignored. - */ - zfs_post_remove(spa, vd); vd->vdev_removed = B_TRUE; } else if (state == VDEV_STATE_CANT_OPEN) { /* @@ -2623,7 +2949,7 @@ vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, vdev_aux_t aux) * begin with. Failure to open such a device is not considered * an error. */ - if (spa->spa_load_state == SPA_LOAD_IMPORT && + if (spa_load_state(spa) == SPA_LOAD_IMPORT && vd->vdev_ops->vdev_op_leaf) vd->vdev_not_present = 1; @@ -2666,9 +2992,6 @@ vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, vdev_aux_t aux) case VDEV_AUX_BAD_LABEL: class = FM_EREPORT_ZFS_DEVICE_BAD_LABEL; break; - case VDEV_AUX_IO_FAILURE: - class = FM_EREPORT_ZFS_IO_FAILURE; - break; default: class = FM_EREPORT_ZFS_DEVICE_UNKNOWN; } @@ -2716,32 +3039,31 @@ vdev_is_bootable(vdev_t *vd) return (B_TRUE); } +/* + * Load the state from the original vdev tree (ovd) which + * we've retrieved from the MOS config object. If the original + * vdev was offline then we transfer that state to the device + * in the current vdev tree (nvd). + */ void -vdev_load_log_state(vdev_t *vd, nvlist_t *nv) +vdev_load_log_state(vdev_t *nvd, vdev_t *ovd) { - uint_t children; - nvlist_t **child; - uint64_t val; - spa_t *spa = vd->vdev_spa; + spa_t *spa = nvd->vdev_spa; - if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, - &child, &children) == 0) { - for (int c = 0; c < children; c++) - vdev_load_log_state(vd->vdev_child[c], child[c]); - } + ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); + ASSERT3U(nvd->vdev_guid, ==, ovd->vdev_guid); - if (vd->vdev_ops->vdev_op_leaf && nvlist_lookup_uint64(nv, - ZPOOL_CONFIG_OFFLINE, &val) == 0 && val) { + for (int c = 0; c < nvd->vdev_children; c++) + vdev_load_log_state(nvd->vdev_child[c], ovd->vdev_child[c]); + if (nvd->vdev_ops->vdev_op_leaf && ovd->vdev_offline) { /* * It would be nice to call vdev_offline() * directly but the pool isn't fully loaded and * the txg threads have not been started yet. */ - spa_config_enter(spa, SCL_STATE_ALL, FTAG, RW_WRITER); - vd->vdev_offline = val; - vdev_reopen(vd->vdev_top); - spa_config_exit(spa, SCL_STATE_ALL, FTAG); + nvd->vdev_offline = ovd->vdev_offline; + vdev_reopen(nvd->vdev_top); } } @@ -2759,3 +3081,22 @@ vdev_expand(vdev_t *vd, uint64_t txg) vdev_config_dirty(vd); } } + +/* + * Split a vdev. + */ +void +vdev_split(vdev_t *vd) +{ + vdev_t *cvd, *pvd = vd->vdev_parent; + + vdev_remove_child(pvd, vd); + vdev_compact_children(pvd); + + cvd = pvd->vdev_child[0]; + if (pvd->vdev_children == 1) { + vdev_remove_parent(cvd); + cvd->vdev_splitting = B_TRUE; + } + vdev_propagate_state(cvd); +} diff --git a/module/zfs/vdev_cache.c b/module/zfs/vdev_cache.c index 9b3a9f5a2..688d54134 100644 --- a/module/zfs/vdev_cache.c +++ b/module/zfs/vdev_cache.c @@ -172,7 +172,7 @@ vdev_cache_allocate(zio_t *zio) ve = kmem_zalloc(sizeof (vdev_cache_entry_t), KM_SLEEP); ve->ve_offset = offset; - ve->ve_lastused = lbolt; + ve->ve_lastused = ddi_get_lbolt(); ve->ve_data = zio_buf_alloc(VCBS); avl_add(&vc->vc_offset_tree, ve); @@ -189,9 +189,9 @@ vdev_cache_hit(vdev_cache_t *vc, vdev_cache_entry_t *ve, zio_t *zio) ASSERT(MUTEX_HELD(&vc->vc_lock)); ASSERT(ve->ve_fill_io == NULL); - if (ve->ve_lastused != lbolt) { + if (ve->ve_lastused != ddi_get_lbolt()) { avl_remove(&vc->vc_lastused_tree, ve); - ve->ve_lastused = lbolt; + ve->ve_lastused = ddi_get_lbolt(); avl_add(&vc->vc_lastused_tree, ve); } diff --git a/module/zfs/vdev_file.c b/module/zfs/vdev_file.c index f91dddbe5..8c22aa531 100644 --- a/module/zfs/vdev_file.c +++ b/module/zfs/vdev_file.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -35,6 +34,18 @@ * Virtual device vector for files. */ +static void +vdev_file_hold(vdev_t *vd) +{ + ASSERT(vd->vdev_path != NULL); +} + +static void +vdev_file_rele(vdev_t *vd) +{ + ASSERT(vd->vdev_path != NULL); +} + static int vdev_file_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift) { @@ -51,6 +62,16 @@ vdev_file_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift) return (EINVAL); } + /* + * Reopen the device if it's not currently open. Otherwise, + * just update the physical size of the device. + */ + if (vd->vdev_tsd != NULL) { + ASSERT(vd->vdev_reopening); + vf = vd->vdev_tsd; + goto skip_open; + } + vf = vd->vdev_tsd = kmem_zalloc(sizeof (vdev_file_t), KM_SLEEP); /* @@ -79,6 +100,8 @@ vdev_file_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift) return (ENODEV); } #endif + +skip_open: /* * Determine the physical size of the file. */ @@ -100,7 +123,7 @@ vdev_file_close(vdev_t *vd) { vdev_file_t *vf = vd->vdev_tsd; - if (vf == NULL) + if (vd->vdev_reopening || vf == NULL) return; if (vf->vf_vnode != NULL) { @@ -110,6 +133,7 @@ vdev_file_close(vdev_t *vd) VN_RELE(vf->vf_vnode); } + vd->vdev_delayed_close = B_FALSE; kmem_free(vf, sizeof (vdev_file_t)); vd->vdev_tsd = NULL; } @@ -166,6 +190,8 @@ vdev_ops_t vdev_file_ops = { vdev_file_io_start, vdev_file_io_done, NULL, + vdev_file_hold, + vdev_file_rele, VDEV_TYPE_FILE, /* name of this vdev type */ B_TRUE /* leaf vdev */ }; @@ -182,6 +208,8 @@ vdev_ops_t vdev_disk_ops = { vdev_file_io_start, vdev_file_io_done, NULL, + vdev_file_hold, + vdev_file_rele, VDEV_TYPE_DISK, /* name of this vdev type */ B_TRUE /* leaf vdev */ }; diff --git a/module/zfs/vdev_label.c b/module/zfs/vdev_label.c index 06cb72012..75ec54534 100644 --- a/module/zfs/vdev_label.c +++ b/module/zfs/vdev_label.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -141,6 +140,7 @@ #include <sys/uberblock_impl.h> #include <sys/metaslab.h> #include <sys/zio.h> +#include <sys/dsl_scan.h> #include <sys/fs/zfs.h> /* @@ -208,7 +208,7 @@ vdev_label_write(zio_t *zio, vdev_t *vd, int l, void *buf, uint64_t offset, */ nvlist_t * vdev_config_generate(spa_t *spa, vdev_t *vd, boolean_t getstats, - boolean_t isspare, boolean_t isl2cache) + vdev_config_flag_t flags) { nvlist_t *nv = NULL; @@ -216,7 +216,7 @@ vdev_config_generate(spa_t *spa, vdev_t *vd, boolean_t getstats, VERIFY(nvlist_add_string(nv, ZPOOL_CONFIG_TYPE, vd->vdev_ops->vdev_op_type) == 0); - if (!isspare && !isl2cache) + if (!(flags & (VDEV_CONFIG_SPARE | VDEV_CONFIG_L2CACHE))) VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_ID, vd->vdev_id) == 0); VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_GUID, vd->vdev_guid) == 0); @@ -270,7 +270,8 @@ vdev_config_generate(spa_t *spa, vdev_t *vd, boolean_t getstats, if (vd->vdev_isspare) VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_IS_SPARE, 1) == 0); - if (!isspare && !isl2cache && vd == vd->vdev_top) { + if (!(flags & (VDEV_CONFIG_SPARE | VDEV_CONFIG_L2CACHE)) && + vd == vd->vdev_top) { VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_METASLAB_ARRAY, vd->vdev_ms_array) == 0); VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_METASLAB_SHIFT, @@ -281,39 +282,74 @@ vdev_config_generate(spa_t *spa, vdev_t *vd, boolean_t getstats, vd->vdev_asize) == 0); VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_IS_LOG, vd->vdev_islog) == 0); + if (vd->vdev_removing) + VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_REMOVING, + vd->vdev_removing) == 0); } if (vd->vdev_dtl_smo.smo_object != 0) VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_DTL, vd->vdev_dtl_smo.smo_object) == 0); + if (vd->vdev_crtxg) + VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_CREATE_TXG, + vd->vdev_crtxg) == 0); + if (getstats) { vdev_stat_t vs; + pool_scan_stat_t ps; + vdev_get_stats(vd, &vs); - VERIFY(nvlist_add_uint64_array(nv, ZPOOL_CONFIG_STATS, + VERIFY(nvlist_add_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS, (uint64_t *)&vs, sizeof (vs) / sizeof (uint64_t)) == 0); + + /* provide either current or previous scan information */ + if (spa_scan_get_stats(spa, &ps) == 0) { + VERIFY(nvlist_add_uint64_array(nv, + ZPOOL_CONFIG_SCAN_STATS, (uint64_t *)&ps, + sizeof (pool_scan_stat_t) / sizeof (uint64_t)) + == 0); + } } if (!vd->vdev_ops->vdev_op_leaf) { nvlist_t **child; - int c; + int c, idx; + + ASSERT(!vd->vdev_ishole); child = kmem_alloc(vd->vdev_children * sizeof (nvlist_t *), KM_SLEEP); - for (c = 0; c < vd->vdev_children; c++) - child[c] = vdev_config_generate(spa, vd->vdev_child[c], - getstats, isspare, isl2cache); + for (c = 0, idx = 0; c < vd->vdev_children; c++) { + vdev_t *cvd = vd->vdev_child[c]; - VERIFY(nvlist_add_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, - child, vd->vdev_children) == 0); + /* + * If we're generating an nvlist of removing + * vdevs then skip over any device which is + * not being removed. + */ + if ((flags & VDEV_CONFIG_REMOVING) && + !cvd->vdev_removing) + continue; - for (c = 0; c < vd->vdev_children; c++) + child[idx++] = vdev_config_generate(spa, cvd, + getstats, flags); + } + + if (idx) { + VERIFY(nvlist_add_nvlist_array(nv, + ZPOOL_CONFIG_CHILDREN, child, idx) == 0); + } + + for (c = 0; c < idx; c++) nvlist_free(child[c]); kmem_free(child, vd->vdev_children * sizeof (nvlist_t *)); } else { + const char *aux = NULL; + if (vd->vdev_offline && !vd->vdev_tmpoffline) VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_OFFLINE, B_TRUE) == 0); @@ -329,11 +365,66 @@ vdev_config_generate(spa_t *spa, vdev_t *vd, boolean_t getstats, if (vd->vdev_unspare) VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_UNSPARE, B_TRUE) == 0); + if (vd->vdev_ishole) + VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_IS_HOLE, + B_TRUE) == 0); + + switch (vd->vdev_stat.vs_aux) { + case VDEV_AUX_ERR_EXCEEDED: + aux = "err_exceeded"; + break; + + case VDEV_AUX_EXTERNAL: + aux = "external"; + break; + } + + if (aux != NULL) + VERIFY(nvlist_add_string(nv, ZPOOL_CONFIG_AUX_STATE, + aux) == 0); + + if (vd->vdev_splitting && vd->vdev_orig_guid != 0LL) { + VERIFY(nvlist_add_uint64(nv, ZPOOL_CONFIG_ORIG_GUID, + vd->vdev_orig_guid) == 0); + } } return (nv); } +/* + * Generate a view of the top-level vdevs. If we currently have holes + * in the namespace, then generate an array which contains a list of holey + * vdevs. Additionally, add the number of top-level children that currently + * exist. + */ +void +vdev_top_config_generate(spa_t *spa, nvlist_t *config) +{ + vdev_t *rvd = spa->spa_root_vdev; + uint64_t *array; + uint_t c, idx; + + array = kmem_alloc(rvd->vdev_children * sizeof (uint64_t), KM_SLEEP); + + for (c = 0, idx = 0; c < rvd->vdev_children; c++) { + vdev_t *tvd = rvd->vdev_child[c]; + + if (tvd->vdev_ishole) + array[idx++] = c; + } + + if (idx) { + VERIFY(nvlist_add_uint64_array(config, ZPOOL_CONFIG_HOLE_ARRAY, + array, idx) == 0); + } + + VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_VDEV_CHILDREN, + rvd->vdev_children) == 0); + + kmem_free(array, rvd->vdev_children * sizeof (uint64_t)); +} + nvlist_t * vdev_label_read_config(vdev_t *vd) { @@ -516,6 +607,9 @@ vdev_label_init(vdev_t *vd, uint64_t crtxg, vdev_labeltype_t reason) crtxg, reason)) != 0) return (error); + /* Track the creation time for this vdev */ + vd->vdev_crtxg = crtxg; + if (!vd->vdev_ops->vdev_op_leaf) return (0); @@ -528,7 +622,7 @@ vdev_label_init(vdev_t *vd, uint64_t crtxg, vdev_labeltype_t reason) /* * Determine if the vdev is in use. */ - if (reason != VDEV_LABEL_REMOVE && + if (reason != VDEV_LABEL_REMOVE && reason != VDEV_LABEL_SPLIT && vdev_inuse(vd, crtxg, reason, &spare_guid, &l2cache_guid)) return (EBUSY); @@ -554,7 +648,8 @@ vdev_label_init(vdev_t *vd, uint64_t crtxg, vdev_labeltype_t reason) */ if (reason == VDEV_LABEL_SPARE) return (0); - ASSERT(reason == VDEV_LABEL_REPLACE); + ASSERT(reason == VDEV_LABEL_REPLACE || + reason == VDEV_LABEL_SPLIT); } if (reason != VDEV_LABEL_REMOVE && reason != VDEV_LABEL_SPARE && @@ -619,7 +714,11 @@ vdev_label_init(vdev_t *vd, uint64_t crtxg, vdev_labeltype_t reason) VERIFY(nvlist_add_uint64(label, ZPOOL_CONFIG_GUID, vd->vdev_guid) == 0); } else { - label = spa_config_generate(spa, vd, 0ULL, B_FALSE); + uint64_t txg = 0ULL; + + if (reason == VDEV_LABEL_SPLIT) + txg = spa->spa_uberblock.ub_txg; + label = spa_config_generate(spa, vd, txg, B_FALSE); /* * Add our creation time. This allows us to detect multiple @@ -717,11 +816,6 @@ retry: */ /* - * For use by zdb and debugging purposes only - */ -uint64_t ub_max_txg = UINT64_MAX; - -/* * Consider the following situation: txg is safely synced to disk. We've * written the first uberblock for txg + 1, and then we lose power. When we * come back up, we fail to see the uberblock for txg + 1 because, say, @@ -750,6 +844,7 @@ vdev_uberblock_compare(uberblock_t *ub1, uberblock_t *ub2) static void vdev_uberblock_load_done(zio_t *zio) { + spa_t *spa = zio->io_spa; zio_t *rio = zio->io_private; uberblock_t *ub = zio->io_data; uberblock_t *ubbest = rio->io_private; @@ -758,7 +853,7 @@ vdev_uberblock_load_done(zio_t *zio) if (zio->io_error == 0 && uberblock_verify(ub) == 0) { mutex_enter(&rio->io_lock); - if (ub->ub_txg <= ub_max_txg && + if (ub->ub_txg <= spa->spa_load_max_txg && vdev_uberblock_compare(ub, ubbest) > 0) *ubbest = *ub; mutex_exit(&rio->io_lock); @@ -976,6 +1071,9 @@ vdev_label_sync_list(spa_t *spa, int l, uint64_t txg, int flags) for (vd = list_head(dl); vd != NULL; vd = list_next(dl, vd)) { uint64_t *good_writes = kmem_zalloc(sizeof (uint64_t), KM_SLEEP); + + ASSERT(!vd->vdev_ishole); + zio_t *vio = zio_null(zio, spa, NULL, (vd->vdev_islog || vd->vdev_aux != NULL) ? vdev_label_sync_ignore_done : vdev_label_sync_top_done, diff --git a/module/zfs/vdev_mirror.c b/module/zfs/vdev_mirror.c index 836386d42..698c0275d 100644 --- a/module/zfs/vdev_mirror.c +++ b/module/zfs/vdev_mirror.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -60,6 +60,11 @@ vdev_mirror_map_free(zio_t *zio) kmem_free(mm, offsetof(mirror_map_t, mm_child[mm->mm_children])); } +static const zio_vsd_ops_t vdev_mirror_vsd_ops = { + vdev_mirror_map_free, + zio_vsd_default_cksum_report +}; + static mirror_map_t * vdev_mirror_map_alloc(zio_t *zio) { @@ -117,7 +122,7 @@ vdev_mirror_map_alloc(zio_t *zio) } zio->io_vsd = mm; - zio->io_vsd_free = vdev_mirror_map_free; + zio->io_vsd_ops = &vdev_mirror_vsd_ops; return (mm); } @@ -209,7 +214,7 @@ vdev_mirror_child_select(zio_t *zio) uint64_t txg = zio->io_txg; int i, c; - ASSERT(zio->io_bp == NULL || zio->io_bp->blk_birth == txg); + ASSERT(zio->io_bp == NULL || BP_PHYSICAL_BIRTH(zio->io_bp) == txg); /* * Try to find a child whose DTL doesn't contain the block to read. @@ -447,6 +452,8 @@ vdev_ops_t vdev_mirror_ops = { vdev_mirror_io_start, vdev_mirror_io_done, vdev_mirror_state_change, + NULL, + NULL, VDEV_TYPE_MIRROR, /* name of this vdev type */ B_FALSE /* not a leaf vdev */ }; @@ -458,6 +465,8 @@ vdev_ops_t vdev_replacing_ops = { vdev_mirror_io_start, vdev_mirror_io_done, vdev_mirror_state_change, + NULL, + NULL, VDEV_TYPE_REPLACING, /* name of this vdev type */ B_FALSE /* not a leaf vdev */ }; @@ -469,6 +478,8 @@ vdev_ops_t vdev_spare_ops = { vdev_mirror_io_start, vdev_mirror_io_done, vdev_mirror_state_change, + NULL, + NULL, VDEV_TYPE_SPARE, /* name of this vdev type */ B_FALSE /* not a leaf vdev */ }; diff --git a/module/zfs/vdev_missing.c b/module/zfs/vdev_missing.c index 731f7d3dc..6a5588d59 100644 --- a/module/zfs/vdev_missing.c +++ b/module/zfs/vdev_missing.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -48,8 +48,8 @@ vdev_missing_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift) * VDEV_AUX_BAD_GUID_SUM. So we pretend to succeed, knowing that we * will fail the GUID sum check before ever trying to open the pool. */ - *psize = SPA_MINDEVSIZE; - *ashift = SPA_MINBLOCKSHIFT; + *psize = 0; + *ashift = 0; return (0); } @@ -80,6 +80,21 @@ vdev_ops_t vdev_missing_ops = { vdev_missing_io_start, vdev_missing_io_done, NULL, + NULL, + NULL, VDEV_TYPE_MISSING, /* name of this vdev type */ B_TRUE /* leaf vdev */ }; + +vdev_ops_t vdev_hole_ops = { + vdev_missing_open, + vdev_missing_close, + vdev_default_asize, + vdev_missing_io_start, + vdev_missing_io_done, + NULL, + NULL, + NULL, + VDEV_TYPE_HOLE, /* name of this vdev type */ + B_TRUE /* leaf vdev */ +}; diff --git a/module/zfs/vdev_queue.c b/module/zfs/vdev_queue.c index 9867d0970..5a0d3ee97 100644 --- a/module/zfs/vdev_queue.c +++ b/module/zfs/vdev_queue.c @@ -24,7 +24,6 @@ */ #include <sys/zfs_context.h> -#include <sys/spa_impl.h> #include <sys/vdev_impl.h> #include <sys/zio.h> #include <sys/avl.h> @@ -38,10 +37,10 @@ * of i/os pending to each device (before it starts ramping up to * max_pending). */ -int zfs_vdev_max_pending = 35; +int zfs_vdev_max_pending = 10; int zfs_vdev_min_pending = 4; -/* deadline = pri + (lbolt >> time_shift) */ +/* deadline = pri + ddi_get_lbolt64() >> time_shift) */ int zfs_vdev_time_shift = 6; /* exponential I/O issue ramp-up rate */ @@ -286,7 +285,7 @@ again: ASSERT(size <= zfs_vdev_aggregation_limit); aio = zio_vdev_delegated_io(fio->io_vd, fio->io_offset, - zio_buf_alloc(size), size, fio->io_type, ZIO_PRIORITY_NOW, + zio_buf_alloc(size), size, fio->io_type, ZIO_PRIORITY_AGG, flags | ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE, vdev_queue_agg_io_done, NULL); @@ -360,7 +359,8 @@ vdev_queue_io(zio_t *zio) mutex_enter(&vq->vq_lock); - zio->io_deadline = (lbolt64 >> zfs_vdev_time_shift) + zio->io_priority; + zio->io_deadline = (ddi_get_lbolt64() >> zfs_vdev_time_shift) + + zio->io_priority; vdev_queue_io_add(vq, zio); diff --git a/module/zfs/vdev_raidz.c b/module/zfs/vdev_raidz.c index b3074173e..4b0f5602c 100644 --- a/module/zfs/vdev_raidz.c +++ b/module/zfs/vdev_raidz.c @@ -20,8 +20,7 @@ */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -103,6 +102,7 @@ typedef struct raidz_col { uint64_t rc_offset; /* device offset */ uint64_t rc_size; /* I/O size */ void *rc_data; /* I/O data */ + void *rc_gdata; /* used to store the "good" version */ int rc_error; /* I/O error for this device */ uint8_t rc_tried; /* Did we attempt this I/O column? */ uint8_t rc_skipped; /* Did we skip this I/O column? */ @@ -116,14 +116,18 @@ typedef struct raidz_map { uint64_t rm_missingdata; /* Count of missing data devices */ uint64_t rm_missingparity; /* Count of missing parity devices */ uint64_t rm_firstdatacol; /* First data column/parity count */ - uint64_t rm_skipped; /* Skipped sectors for padding */ + uint64_t rm_nskip; /* Skipped sectors for padding */ + uint64_t rm_skipstart; /* Column index of padding start */ + void *rm_datacopy; /* rm_asize-buffer of copied data */ + uintptr_t rm_reports; /* # of referencing checksum reports */ + uint8_t rm_freed; /* map no longer has referencing ZIO */ + uint8_t rm_ecksuminjected; /* checksum error was injected */ raidz_col_t rm_col[1]; /* Flexible array of I/O columns */ } raidz_map_t; #define VDEV_RAIDZ_P 0 #define VDEV_RAIDZ_Q 1 #define VDEV_RAIDZ_R 2 -#define VDEV_RAIDZ_MAXPARITY 3 #define VDEV_RAIDZ_MUL_2(x) (((x) << 1) ^ (((x) & 0x80) ? 0x1d : 0)) #define VDEV_RAIDZ_MUL_4(x) (VDEV_RAIDZ_MUL_2(VDEV_RAIDZ_MUL_2(x))) @@ -226,6 +230,8 @@ static const uint8_t vdev_raidz_log2[256] = { 0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf, }; +static void vdev_raidz_generate_parity(raidz_map_t *rm); + /* * Multiply a given number by 2 raised to the given power. */ @@ -246,17 +252,184 @@ vdev_raidz_exp2(uint_t a, int exp) } static void -vdev_raidz_map_free(zio_t *zio) +vdev_raidz_map_free(raidz_map_t *rm) { - raidz_map_t *rm = zio->io_vsd; int c; + size_t size; - for (c = 0; c < rm->rm_firstdatacol; c++) + for (c = 0; c < rm->rm_firstdatacol; c++) { zio_buf_free(rm->rm_col[c].rc_data, rm->rm_col[c].rc_size); + if (rm->rm_col[c].rc_gdata != NULL) + zio_buf_free(rm->rm_col[c].rc_gdata, + rm->rm_col[c].rc_size); + } + + size = 0; + for (c = rm->rm_firstdatacol; c < rm->rm_cols; c++) + size += rm->rm_col[c].rc_size; + + if (rm->rm_datacopy != NULL) + zio_buf_free(rm->rm_datacopy, size); + kmem_free(rm, offsetof(raidz_map_t, rm_col[rm->rm_scols])); } +static void +vdev_raidz_map_free_vsd(zio_t *zio) +{ + raidz_map_t *rm = zio->io_vsd; + + ASSERT3U(rm->rm_freed, ==, 0); + rm->rm_freed = 1; + + if (rm->rm_reports == 0) + vdev_raidz_map_free(rm); +} + +/*ARGSUSED*/ +static void +vdev_raidz_cksum_free(void *arg, size_t ignored) +{ + raidz_map_t *rm = arg; + + ASSERT3U(rm->rm_reports, >, 0); + + if (--rm->rm_reports == 0 && rm->rm_freed != 0) + vdev_raidz_map_free(rm); +} + +static void +vdev_raidz_cksum_finish(zio_cksum_report_t *zcr, const void *good_data) +{ + raidz_map_t *rm = zcr->zcr_cbdata; + size_t c = zcr->zcr_cbinfo; + size_t x; + + const char *good = NULL; + const char *bad = rm->rm_col[c].rc_data; + + if (good_data == NULL) { + zfs_ereport_finish_checksum(zcr, NULL, NULL, B_FALSE); + return; + } + + if (c < rm->rm_firstdatacol) { + /* + * The first time through, calculate the parity blocks for + * the good data (this relies on the fact that the good + * data never changes for a given logical ZIO) + */ + if (rm->rm_col[0].rc_gdata == NULL) { + char *bad_parity[VDEV_RAIDZ_MAXPARITY]; + char *buf; + + /* + * Set up the rm_col[]s to generate the parity for + * good_data, first saving the parity bufs and + * replacing them with buffers to hold the result. + */ + for (x = 0; x < rm->rm_firstdatacol; x++) { + bad_parity[x] = rm->rm_col[x].rc_data; + rm->rm_col[x].rc_data = rm->rm_col[x].rc_gdata = + zio_buf_alloc(rm->rm_col[x].rc_size); + } + + /* fill in the data columns from good_data */ + buf = (char *)good_data; + for (; x < rm->rm_cols; x++) { + rm->rm_col[x].rc_data = buf; + buf += rm->rm_col[x].rc_size; + } + + /* + * Construct the parity from the good data. + */ + vdev_raidz_generate_parity(rm); + + /* restore everything back to its original state */ + for (x = 0; x < rm->rm_firstdatacol; x++) + rm->rm_col[x].rc_data = bad_parity[x]; + + buf = rm->rm_datacopy; + for (x = rm->rm_firstdatacol; x < rm->rm_cols; x++) { + rm->rm_col[x].rc_data = buf; + buf += rm->rm_col[x].rc_size; + } + } + + ASSERT3P(rm->rm_col[c].rc_gdata, !=, NULL); + good = rm->rm_col[c].rc_gdata; + } else { + /* adjust good_data to point at the start of our column */ + good = good_data; + + for (x = rm->rm_firstdatacol; x < c; x++) + good += rm->rm_col[x].rc_size; + } + + /* we drop the ereport if it ends up that the data was good */ + zfs_ereport_finish_checksum(zcr, good, bad, B_TRUE); +} + +/* + * Invoked indirectly by zfs_ereport_start_checksum(), called + * below when our read operation fails completely. The main point + * is to keep a copy of everything we read from disk, so that at + * vdev_raidz_cksum_finish() time we can compare it with the good data. + */ +static void +vdev_raidz_cksum_report(zio_t *zio, zio_cksum_report_t *zcr, void *arg) +{ + size_t c = (size_t)(uintptr_t)arg; + caddr_t buf; + + raidz_map_t *rm = zio->io_vsd; + size_t size; + + /* set up the report and bump the refcount */ + zcr->zcr_cbdata = rm; + zcr->zcr_cbinfo = c; + zcr->zcr_finish = vdev_raidz_cksum_finish; + zcr->zcr_free = vdev_raidz_cksum_free; + + rm->rm_reports++; + ASSERT3U(rm->rm_reports, >, 0); + + if (rm->rm_datacopy != NULL) + return; + + /* + * It's the first time we're called for this raidz_map_t, so we need + * to copy the data aside; there's no guarantee that our zio's buffer + * won't be re-used for something else. + * + * Our parity data is already in separate buffers, so there's no need + * to copy them. + */ + + size = 0; + for (c = rm->rm_firstdatacol; c < rm->rm_cols; c++) + size += rm->rm_col[c].rc_size; + + buf = rm->rm_datacopy = zio_buf_alloc(size); + + for (c = rm->rm_firstdatacol; c < rm->rm_cols; c++) { + raidz_col_t *col = &rm->rm_col[c]; + + bcopy(col->rc_data, buf, col->rc_size); + col->rc_data = buf; + + buf += col->rc_size; + } + ASSERT3P(buf - (caddr_t)rm->rm_datacopy, ==, size); +} + +static const zio_vsd_ops_t vdev_raidz_vsd_ops = { + vdev_raidz_map_free_vsd, + vdev_raidz_cksum_report +}; + static raidz_map_t * vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, uint64_t nparity) @@ -288,9 +461,14 @@ vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, rm->rm_cols = acols; rm->rm_scols = scols; rm->rm_bigcols = bc; + rm->rm_skipstart = bc; rm->rm_missingdata = 0; rm->rm_missingparity = 0; rm->rm_firstdatacol = nparity; + rm->rm_datacopy = NULL; + rm->rm_reports = 0; + rm->rm_freed = 0; + rm->rm_ecksuminjected = 0; asize = 0; @@ -304,6 +482,7 @@ vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, rm->rm_col[c].rc_devidx = col; rm->rm_col[c].rc_offset = coff; rm->rm_col[c].rc_data = NULL; + rm->rm_col[c].rc_gdata = NULL; rm->rm_col[c].rc_error = 0; rm->rm_col[c].rc_tried = 0; rm->rm_col[c].rc_skipped = 0; @@ -320,9 +499,9 @@ vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, ASSERT3U(asize, ==, tot << unit_shift); rm->rm_asize = roundup(asize, (nparity + 1) << unit_shift); - rm->rm_skipped = roundup(tot, nparity + 1) - tot; - ASSERT3U(rm->rm_asize - asize, ==, rm->rm_skipped << unit_shift); - ASSERT3U(rm->rm_skipped, <=, nparity); + rm->rm_nskip = roundup(tot, nparity + 1) - tot; + ASSERT3U(rm->rm_asize - asize, ==, rm->rm_nskip << unit_shift); + ASSERT3U(rm->rm_nskip, <=, nparity); for (c = 0; c < rm->rm_firstdatacol; c++) rm->rm_col[c].rc_data = zio_buf_alloc(rm->rm_col[c].rc_size); @@ -347,6 +526,11 @@ vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, * Unfortunately, this decision created an implicit on-disk format * requirement that we need to support for all eternity, but only * for single-parity RAID-Z. + * + * If we intend to skip a sector in the zeroth column for padding + * we must make sure to note this swap. We will never intend to + * skip the first column since at least one data and one parity + * column must appear in each row. */ ASSERT(rm->rm_cols >= 2); ASSERT(rm->rm_col[0].rc_size == rm->rm_col[1].rc_size); @@ -358,10 +542,13 @@ vdev_raidz_map_alloc(zio_t *zio, uint64_t unit_shift, uint64_t dcols, rm->rm_col[0].rc_offset = rm->rm_col[1].rc_offset; rm->rm_col[1].rc_devidx = devidx; rm->rm_col[1].rc_offset = o; + + if (rm->rm_skipstart == 0) + rm->rm_skipstart = 1; } zio->io_vsd = rm; - zio->io_vsd_free = vdev_raidz_map_free; + zio->io_vsd_ops = &vdev_raidz_vsd_ops; return (rm); } @@ -1335,7 +1522,6 @@ vdev_raidz_io_start(zio_t *zio) vdev_t *vd = zio->io_vd; vdev_t *tvd = vd->vdev_top; vdev_t *cvd; - blkptr_t *bp = zio->io_bp; raidz_map_t *rm; raidz_col_t *rc; int c, i; @@ -1361,7 +1547,7 @@ vdev_raidz_io_start(zio_t *zio) * Generate optional I/Os for any skipped sectors to improve * aggregation contiguity. */ - for (c = rm->rm_bigcols, i = 0; i < rm->rm_skipped; c++, i++) { + for (c = rm->rm_skipstart, i = 0; i < rm->rm_nskip; c++, i++) { ASSERT(c <= rm->rm_scols); if (c == rm->rm_scols) c = 0; @@ -1396,7 +1582,7 @@ vdev_raidz_io_start(zio_t *zio) rc->rc_skipped = 1; continue; } - if (vdev_dtl_contains(cvd, DTL_MISSING, bp->blk_birth, 1)) { + if (vdev_dtl_contains(cvd, DTL_MISSING, zio->io_txg, 1)) { if (c >= rm->rm_firstdatacol) rm->rm_missingdata++; else @@ -1417,23 +1603,47 @@ vdev_raidz_io_start(zio_t *zio) return (ZIO_PIPELINE_CONTINUE); } + /* * Report a checksum error for a child of a RAID-Z device. */ static void -raidz_checksum_error(zio_t *zio, raidz_col_t *rc) +raidz_checksum_error(zio_t *zio, raidz_col_t *rc, void *bad_data) { vdev_t *vd = zio->io_vd->vdev_child[rc->rc_devidx]; if (!(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { + zio_bad_cksum_t zbc; + raidz_map_t *rm = zio->io_vsd; + mutex_enter(&vd->vdev_stat_lock); vd->vdev_stat.vs_checksum_errors++; mutex_exit(&vd->vdev_stat_lock); + + zbc.zbc_has_cksum = 0; + zbc.zbc_injected = rm->rm_ecksuminjected; + + zfs_ereport_post_checksum(zio->io_spa, vd, zio, + rc->rc_offset, rc->rc_size, rc->rc_data, bad_data, + &zbc); } +} + +/* + * We keep track of whether or not there were any injected errors, so that + * any ereports we generate can note it. + */ +static int +raidz_checksum_verify(zio_t *zio) +{ + zio_bad_cksum_t zbc; + raidz_map_t *rm = zio->io_vsd; + + int ret = zio_checksum_error(zio, &zbc); + if (ret != 0 && zbc.zbc_injected != 0) + rm->rm_ecksuminjected = 1; - if (!(zio->io_flags & ZIO_FLAG_SPECULATIVE)) - zfs_ereport_post(FM_EREPORT_ZFS_CHECKSUM, - zio->io_spa, vd, zio, rc->rc_offset, rc->rc_size); + return (ret); } /* @@ -1464,7 +1674,7 @@ raidz_parity_verify(zio_t *zio, raidz_map_t *rm) if (!rc->rc_tried || rc->rc_error != 0) continue; if (bcmp(orig[c], rc->rc_data, rc->rc_size) != 0) { - raidz_checksum_error(zio, rc); + raidz_checksum_error(zio, rc, orig[c]); rc->rc_error = ECKSUM; ret++; } @@ -1579,7 +1789,7 @@ vdev_raidz_combrec(zio_t *zio, int total_errors, int data_errors) * success. */ code = vdev_raidz_reconstruct(rm, tgts, n); - if (zio_checksum_error(zio) == 0) { + if (raidz_checksum_verify(zio) == 0) { atomic_inc_64(&raidz_corrected[code]); for (i = 0; i < n; i++) { @@ -1587,7 +1797,8 @@ vdev_raidz_combrec(zio_t *zio, int total_errors, int data_errors) rc = &rm->rm_col[c]; ASSERT(rc->rc_error == 0); if (rc->rc_tried) - raidz_checksum_error(zio, rc); + raidz_checksum_error(zio, rc, + orig[i]); rc->rc_error = ECKSUM; } @@ -1724,7 +1935,7 @@ vdev_raidz_io_done(zio_t *zio) */ if (total_errors <= rm->rm_firstdatacol - parity_untried) { if (data_errors == 0) { - if (zio_checksum_error(zio) == 0) { + if (raidz_checksum_verify(zio) == 0) { /* * If we read parity information (unnecessarily * as it happens since no reconstruction was @@ -1770,7 +1981,7 @@ vdev_raidz_io_done(zio_t *zio) code = vdev_raidz_reconstruct(rm, tgts, n); - if (zio_checksum_error(zio) == 0) { + if (raidz_checksum_verify(zio) == 0) { atomic_inc_64(&raidz_corrected[code]); /* @@ -1839,18 +2050,11 @@ vdev_raidz_io_done(zio_t *zio) * reconstruction over all possible combinations. If that fails, * we're cooked. */ - if (total_errors >= rm->rm_firstdatacol) { + if (total_errors > rm->rm_firstdatacol) { zio->io_error = vdev_raidz_worst_error(rm); - /* - * If there were exactly as many device errors as parity - * columns, yet we couldn't reconstruct the data, then at - * least one device must have returned bad data silently. - */ - if (total_errors == rm->rm_firstdatacol) - zio->io_error = zio_worst_error(zio->io_error, ECKSUM); - } else if ((code = vdev_raidz_combrec(zio, total_errors, - data_errors)) != 0) { + } else if (total_errors < rm->rm_firstdatacol && + (code = vdev_raidz_combrec(zio, total_errors, data_errors)) != 0) { /* * If we didn't use all the available parity for the * combinatorial reconstruction, verify that the remaining @@ -1860,17 +2064,34 @@ vdev_raidz_io_done(zio_t *zio) (void) raidz_parity_verify(zio, rm); } else { /* - * All combinations failed to checksum. Generate checksum - * ereports for all children. + * We're here because either: + * + * total_errors == rm_first_datacol, or + * vdev_raidz_combrec() failed + * + * In either case, there is enough bad data to prevent + * reconstruction. + * + * Start checksum ereports for all children which haven't + * failed, and the IO wasn't speculative. */ zio->io_error = ECKSUM; if (!(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { for (c = 0; c < rm->rm_cols; c++) { rc = &rm->rm_col[c]; - zfs_ereport_post(FM_EREPORT_ZFS_CHECKSUM, - zio->io_spa, vd->vdev_child[rc->rc_devidx], - zio, rc->rc_offset, rc->rc_size); + if (rc->rc_error == 0) { + zio_bad_cksum_t zbc; + zbc.zbc_has_cksum = 0; + zbc.zbc_injected = + rm->rm_ecksuminjected; + + zfs_ereport_start_checksum( + zio->io_spa, + vd->vdev_child[rc->rc_devidx], + zio, rc->rc_offset, rc->rc_size, + (void *)(uintptr_t)c, &zbc); + } } } } @@ -1918,6 +2139,8 @@ vdev_ops_t vdev_raidz_ops = { vdev_raidz_io_start, vdev_raidz_io_done, vdev_raidz_state_change, + NULL, + NULL, VDEV_TYPE_RAIDZ, /* name of this vdev type */ B_FALSE /* not a leaf vdev */ }; diff --git a/module/zfs/vdev_root.c b/module/zfs/vdev_root.c index 524c8e606..879f78f3a 100644 --- a/module/zfs/vdev_root.c +++ b/module/zfs/vdev_root.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -109,6 +109,8 @@ vdev_ops_t vdev_root_ops = { NULL, /* io_start - not applicable to the root */ NULL, /* io_done - not applicable to the root */ vdev_root_state_change, + NULL, + NULL, VDEV_TYPE_ROOT, /* name of this vdev type */ B_FALSE /* not a leaf vdev */ }; diff --git a/module/zfs/zap.c b/module/zfs/zap.c index 2dc2705b9..288a4d99a 100644 --- a/module/zfs/zap.c +++ b/module/zfs/zap.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -70,7 +69,7 @@ fzap_byteswap(void *vbuf, size_t size) } void -fzap_upgrade(zap_t *zap, dmu_tx_t *tx) +fzap_upgrade(zap_t *zap, dmu_tx_t *tx, zap_flags_t flags) { dmu_buf_t *db; zap_leaf_t *l; @@ -102,6 +101,7 @@ fzap_upgrade(zap_t *zap, dmu_tx_t *tx) zp->zap_num_entries = 0; zp->zap_salt = zap->zap_salt; zp->zap_normflags = zap->zap_normflags; + zp->zap_flags = flags; /* block 1 will be the first leaf */ for (i = 0; i < (1<<zp->zap_ptrtbl.zt_shift); i++) @@ -111,7 +111,7 @@ fzap_upgrade(zap_t *zap, dmu_tx_t *tx) * set up block 1 - the first leaf */ VERIFY(0 == dmu_buf_hold(zap->zap_objset, zap->zap_object, - 1<<FZAP_BLOCK_SHIFT(zap), FTAG, &db)); + 1<<FZAP_BLOCK_SHIFT(zap), FTAG, &db, DMU_READ_NO_PREFETCH)); dmu_buf_will_dirty(db, tx); l = kmem_zalloc(sizeof (zap_leaf_t), KM_SLEEP); @@ -172,20 +172,20 @@ zap_table_grow(zap_t *zap, zap_table_phys_t *tbl, b = tbl->zt_blks_copied; err = dmu_buf_hold(zap->zap_objset, zap->zap_object, - (tbl->zt_blk + b) << bs, FTAG, &db_old); + (tbl->zt_blk + b) << bs, FTAG, &db_old, DMU_READ_NO_PREFETCH); if (err) return (err); /* first half of entries in old[b] go to new[2*b+0] */ VERIFY(0 == dmu_buf_hold(zap->zap_objset, zap->zap_object, - (newblk + 2*b+0) << bs, FTAG, &db_new)); + (newblk + 2*b+0) << bs, FTAG, &db_new, DMU_READ_NO_PREFETCH)); dmu_buf_will_dirty(db_new, tx); transfer_func(db_old->db_data, db_new->db_data, hepb); dmu_buf_rele(db_new, FTAG); /* second half of entries in old[b] go to new[2*b+1] */ VERIFY(0 == dmu_buf_hold(zap->zap_objset, zap->zap_object, - (newblk + 2*b+1) << bs, FTAG, &db_new)); + (newblk + 2*b+1) << bs, FTAG, &db_new, DMU_READ_NO_PREFETCH)); dmu_buf_will_dirty(db_new, tx); transfer_func((uint64_t *)db_old->db_data + hepb, db_new->db_data, hepb); @@ -233,7 +233,7 @@ zap_table_store(zap_t *zap, zap_table_phys_t *tbl, uint64_t idx, uint64_t val, off = idx & ((1<<(bs-3))-1); err = dmu_buf_hold(zap->zap_objset, zap->zap_object, - (tbl->zt_blk + blk) << bs, FTAG, &db); + (tbl->zt_blk + blk) << bs, FTAG, &db, DMU_READ_NO_PREFETCH); if (err) return (err); dmu_buf_will_dirty(db, tx); @@ -245,7 +245,8 @@ zap_table_store(zap_t *zap, zap_table_phys_t *tbl, uint64_t idx, uint64_t val, dmu_buf_t *db2; err = dmu_buf_hold(zap->zap_objset, zap->zap_object, - (tbl->zt_nextblk + blk2) << bs, FTAG, &db2); + (tbl->zt_nextblk + blk2) << bs, FTAG, &db2, + DMU_READ_NO_PREFETCH); if (err) { dmu_buf_rele(db, FTAG); return (err); @@ -276,7 +277,7 @@ zap_table_load(zap_t *zap, zap_table_phys_t *tbl, uint64_t idx, uint64_t *valp) off = idx & ((1<<(bs-3))-1); err = dmu_buf_hold(zap->zap_objset, zap->zap_object, - (tbl->zt_blk + blk) << bs, FTAG, &db); + (tbl->zt_blk + blk) << bs, FTAG, &db, DMU_READ_NO_PREFETCH); if (err) return (err); *valp = ((uint64_t *)db->db_data)[off]; @@ -291,7 +292,8 @@ zap_table_load(zap_t *zap, zap_table_phys_t *tbl, uint64_t idx, uint64_t *valp) blk = (idx*2) >> (bs-3); err = dmu_buf_hold(zap->zap_objset, zap->zap_object, - (tbl->zt_nextblk + blk) << bs, FTAG, &db); + (tbl->zt_nextblk + blk) << bs, FTAG, &db, + DMU_READ_NO_PREFETCH); dmu_buf_rele(db, FTAG); } return (err); @@ -315,8 +317,13 @@ zap_ptrtbl_transfer(const uint64_t *src, uint64_t *dst, int n) static int zap_grow_ptrtbl(zap_t *zap, dmu_tx_t *tx) { - /* In case things go horribly wrong. */ - if (zap->zap_f.zap_phys->zap_ptrtbl.zt_shift >= ZAP_HASHBITS-2) + /* + * The pointer table should never use more hash bits than we + * have (otherwise we'd be using useless zero bits to index it). + * If we are within 2 bits of running out, stop growing, since + * this is already an aberrant condition. + */ + if (zap->zap_f.zap_phys->zap_ptrtbl.zt_shift >= zap_hashbits(zap) - 2) return (ENOSPC); if (zap->zap_f.zap_phys->zap_ptrtbl.zt_numblks == 0) { @@ -335,7 +342,8 @@ zap_grow_ptrtbl(zap_t *zap, dmu_tx_t *tx) newblk = zap_allocate_blocks(zap, 1); err = dmu_buf_hold(zap->zap_objset, zap->zap_object, - newblk << FZAP_BLOCK_SHIFT(zap), FTAG, &db_new); + newblk << FZAP_BLOCK_SHIFT(zap), FTAG, &db_new, + DMU_READ_NO_PREFETCH); if (err) return (err); dmu_buf_will_dirty(db_new, tx); @@ -393,7 +401,8 @@ zap_create_leaf(zap_t *zap, dmu_tx_t *tx) l->l_phys = NULL; VERIFY(0 == dmu_buf_hold(zap->zap_objset, zap->zap_object, - l->l_blkid << FZAP_BLOCK_SHIFT(zap), NULL, &l->l_dbuf)); + l->l_blkid << FZAP_BLOCK_SHIFT(zap), NULL, &l->l_dbuf, + DMU_READ_NO_PREFETCH)); winner = dmu_buf_set_user(l->l_dbuf, l, &l->l_phys, zap_leaf_pageout); ASSERT(winner == NULL); dmu_buf_will_dirty(l->l_dbuf, tx); @@ -496,7 +505,7 @@ zap_get_leaf_byblk(zap_t *zap, uint64_t blkid, dmu_tx_t *tx, krw_t lt, ASSERT(RW_LOCK_HELD(&zap->zap_rwlock)); err = dmu_buf_hold(zap->zap_objset, zap->zap_object, - blkid << bs, NULL, &db); + blkid << bs, NULL, &db, DMU_READ_NO_PREFETCH); if (err) return (err); @@ -700,13 +709,17 @@ zap_put_leaf_maybe_grow_ptrtbl(zap_name_t *zn, zap_leaf_t *l, dmu_tx_t *tx) } } - static int -fzap_checksize(const char *name, uint64_t integer_size, uint64_t num_integers) +fzap_checkname(zap_name_t *zn) { - if (name && strlen(name) > ZAP_MAXNAMELEN) - return (E2BIG); + if (zn->zn_key_orig_numints * zn->zn_key_intlen > ZAP_MAXNAMELEN) + return (ENAMETOOLONG); + return (0); +} +static int +fzap_checksize(uint64_t integer_size, uint64_t num_integers) +{ /* Only integer sizes supported by C */ switch (integer_size) { case 1: @@ -724,6 +737,16 @@ fzap_checksize(const char *name, uint64_t integer_size, uint64_t num_integers) return (0); } +static int +fzap_check(zap_name_t *zn, uint64_t integer_size, uint64_t num_integers) +{ + int err; + + if ((err = fzap_checkname(zn)) != 0) + return (err); + return (fzap_checksize(integer_size, num_integers)); +} + /* * Routines for manipulating attributes. */ @@ -736,8 +759,7 @@ fzap_lookup(zap_name_t *zn, int err; zap_entry_handle_t zeh; - err = fzap_checksize(zn->zn_name_orij, integer_size, num_integers); - if (err != 0) + if ((err = fzap_checkname(zn)) != 0) return (err); err = zap_deref_leaf(zn->zn_zap, zn->zn_hash, NULL, RW_READER, &l); @@ -745,8 +767,13 @@ fzap_lookup(zap_name_t *zn, return (err); err = zap_leaf_lookup(l, zn, &zeh); if (err == 0) { + if ((err = fzap_checksize(integer_size, num_integers)) != 0) { + zap_put_leaf(l); + return (err); + } + err = zap_entry_read(&zeh, integer_size, num_integers, buf); - (void) zap_entry_read_name(&zeh, rn_len, realname); + (void) zap_entry_read_name(zn->zn_zap, &zeh, rn_len, realname); if (ncp) { *ncp = zap_entry_normalization_conflict(&zeh, zn, NULL, zn->zn_zap); @@ -769,8 +796,7 @@ fzap_add_cd(zap_name_t *zn, ASSERT(RW_LOCK_HELD(&zap->zap_rwlock)); ASSERT(!zap->zap_ismicro); - ASSERT(fzap_checksize(zn->zn_name_orij, - integer_size, num_integers) == 0); + ASSERT(fzap_check(zn, integer_size, num_integers) == 0); err = zap_deref_leaf(zap, zn->zn_hash, tx, RW_WRITER, &l); if (err != 0) @@ -784,7 +810,7 @@ retry: if (err != ENOENT) goto out; - err = zap_entry_create(l, zn->zn_name_orij, zn->zn_hash, cd, + err = zap_entry_create(l, zn, cd, integer_size, num_integers, val, &zeh); if (err == 0) { @@ -807,12 +833,12 @@ fzap_add(zap_name_t *zn, uint64_t integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx) { - int err = fzap_checksize(zn->zn_name_orij, integer_size, num_integers); + int err = fzap_check(zn, integer_size, num_integers); if (err != 0) return (err); return (fzap_add_cd(zn, integer_size, num_integers, - val, ZAP_MAXCD, tx)); + val, ZAP_NEED_CD, tx)); } int @@ -825,7 +851,7 @@ fzap_update(zap_name_t *zn, zap_t *zap = zn->zn_zap; ASSERT(RW_LOCK_HELD(&zap->zap_rwlock)); - err = fzap_checksize(zn->zn_name_orij, integer_size, num_integers); + err = fzap_check(zn, integer_size, num_integers); if (err != 0) return (err); @@ -838,8 +864,8 @@ retry: ASSERT(err == 0 || err == ENOENT); if (create) { - err = zap_entry_create(l, zn->zn_name_orij, zn->zn_hash, - ZAP_MAXCD, integer_size, num_integers, val, &zeh); + err = zap_entry_create(l, zn, ZAP_NEED_CD, + integer_size, num_integers, val, &zeh); if (err == 0) zap_increment_num_entries(zap, 1, tx); } else { @@ -901,6 +927,21 @@ fzap_remove(zap_name_t *zn, dmu_tx_t *tx) return (err); } +void +fzap_prefetch(zap_name_t *zn) +{ + uint64_t idx, blk; + zap_t *zap = zn->zn_zap; + int bs; + + idx = ZAP_HASH_IDX(zn->zn_hash, + zap->zap_f.zap_phys->zap_ptrtbl.zt_shift); + if (zap_idx_to_blk(zap, idx, &blk) != 0) + return; + bs = FZAP_BLOCK_SHIFT(zap); + dmu_prefetch(zap->zap_objset, zap->zap_object, blk << bs, 1 << bs); +} + /* * Helper functions for consumers. */ @@ -952,6 +993,56 @@ zap_join(objset_t *os, uint64_t fromobj, uint64_t intoobj, dmu_tx_t *tx) } int +zap_join_key(objset_t *os, uint64_t fromobj, uint64_t intoobj, + uint64_t value, dmu_tx_t *tx) +{ + zap_cursor_t zc; + zap_attribute_t za; + int err; + + for (zap_cursor_init(&zc, os, fromobj); + zap_cursor_retrieve(&zc, &za) == 0; + (void) zap_cursor_advance(&zc)) { + if (za.za_integer_length != 8 || za.za_num_integers != 1) + return (EINVAL); + err = zap_add(os, intoobj, za.za_name, + 8, 1, &value, tx); + if (err) + return (err); + } + zap_cursor_fini(&zc); + return (0); +} + +int +zap_join_increment(objset_t *os, uint64_t fromobj, uint64_t intoobj, + dmu_tx_t *tx) +{ + zap_cursor_t zc; + zap_attribute_t za; + int err; + + for (zap_cursor_init(&zc, os, fromobj); + zap_cursor_retrieve(&zc, &za) == 0; + (void) zap_cursor_advance(&zc)) { + uint64_t delta = 0; + + if (za.za_integer_length != 8 || za.za_num_integers != 1) + return (EINVAL); + + err = zap_lookup(os, intoobj, za.za_name, 8, 1, &delta); + if (err != 0 && err != ENOENT) + return (err); + delta += za.za_first_integer; + err = zap_update(os, intoobj, za.za_name, 8, 1, &delta, tx); + if (err) + return (err); + } + zap_cursor_fini(&zc); + return (0); +} + +int zap_add_int(objset_t *os, uint64_t obj, uint64_t value, dmu_tx_t *tx) { char name[20]; @@ -978,6 +1069,56 @@ zap_lookup_int(objset_t *os, uint64_t obj, uint64_t value) return (zap_lookup(os, obj, name, 8, 1, &value)); } +int +zap_add_int_key(objset_t *os, uint64_t obj, + uint64_t key, uint64_t value, dmu_tx_t *tx) +{ + char name[20]; + + (void) snprintf(name, sizeof (name), "%llx", (longlong_t)key); + return (zap_add(os, obj, name, 8, 1, &value, tx)); +} + +int +zap_lookup_int_key(objset_t *os, uint64_t obj, uint64_t key, uint64_t *valuep) +{ + char name[20]; + + (void) snprintf(name, sizeof (name), "%llx", (longlong_t)key); + return (zap_lookup(os, obj, name, 8, 1, valuep)); +} + +int +zap_increment(objset_t *os, uint64_t obj, const char *name, int64_t delta, + dmu_tx_t *tx) +{ + uint64_t value = 0; + int err; + + if (delta == 0) + return (0); + + err = zap_lookup(os, obj, name, 8, 1, &value); + if (err != 0 && err != ENOENT) + return (err); + value += delta; + if (value == 0) + err = zap_remove(os, obj, name, tx); + else + err = zap_update(os, obj, name, 8, 1, &value, tx); + return (err); +} + +int +zap_increment_int(objset_t *os, uint64_t obj, uint64_t key, int64_t delta, + dmu_tx_t *tx) +{ + char name[20]; + + (void) snprintf(name, sizeof (name), "%llx", (longlong_t)key); + return (zap_increment(os, obj, name, delta, tx)); +} + /* * Routines for iterating over the attributes. */ @@ -1039,7 +1180,7 @@ again: err = zap_entry_read(&zeh, 8, 1, &za->za_first_integer); ASSERT(err == 0 || err == EOVERFLOW); } - err = zap_entry_read_name(&zeh, + err = zap_entry_read_name(zap, &zeh, sizeof (za->za_name), za->za_name); ASSERT(err == 0); @@ -1051,7 +1192,6 @@ again: return (err); } - static void zap_stats_ptrtbl(zap_t *zap, uint64_t *tbl, int len, zap_stats_t *zs) { @@ -1078,6 +1218,31 @@ zap_stats_ptrtbl(zap_t *zap, uint64_t *tbl, int len, zap_stats_t *zs) } } +int +fzap_cursor_move_to_key(zap_cursor_t *zc, zap_name_t *zn) +{ + int err; + zap_leaf_t *l; + zap_entry_handle_t zeh; + + if (zn->zn_key_orig_numints * zn->zn_key_intlen > ZAP_MAXNAMELEN) + return (ENAMETOOLONG); + + err = zap_deref_leaf(zc->zc_zap, zn->zn_hash, NULL, RW_READER, &l); + if (err != 0) + return (err); + + err = zap_leaf_lookup(l, zn, &zeh); + if (err != 0) + return (err); + + zc->zc_leaf = l; + zc->zc_hash = zeh.zeh_hash; + zc->zc_cd = zeh.zeh_cd; + + return (err); +} + void fzap_get_stats(zap_t *zap, zap_stats_t *zs) { @@ -1123,7 +1288,7 @@ fzap_get_stats(zap_t *zap, zap_stats_t *zs) err = dmu_buf_hold(zap->zap_objset, zap->zap_object, (zap->zap_f.zap_phys->zap_ptrtbl.zt_blk + b) << bs, - FTAG, &db); + FTAG, &db, DMU_READ_NO_PREFETCH); if (err == 0) { zap_stats_ptrtbl(zap, db->db_data, 1<<(bs-3), zs); @@ -1145,9 +1310,9 @@ fzap_count_write(zap_name_t *zn, int add, uint64_t *towrite, * Account for the header block of the fatzap. */ if (!add && dmu_buf_freeable(zap->zap_dbuf)) { - tooverwrite += zap->zap_dbuf->db_size; + *tooverwrite += zap->zap_dbuf->db_size; } else { - towrite += zap->zap_dbuf->db_size; + *towrite += zap->zap_dbuf->db_size; } /* @@ -1160,9 +1325,9 @@ fzap_count_write(zap_name_t *zn, int add, uint64_t *towrite, */ if (add) { if (zap->zap_f.zap_phys->zap_ptrtbl.zt_blk == 0) - towrite += zap->zap_dbuf->db_size; + *towrite += zap->zap_dbuf->db_size; else - towrite += (zap->zap_dbuf->db_size * 3); + *towrite += (zap->zap_dbuf->db_size * 3); } /* @@ -1175,13 +1340,13 @@ fzap_count_write(zap_name_t *zn, int add, uint64_t *towrite, } if (!add && dmu_buf_freeable(l->l_dbuf)) { - tooverwrite += l->l_dbuf->db_size; + *tooverwrite += l->l_dbuf->db_size; } else { /* * If this an add operation, the leaf block could split. * Hence, we need to account for an additional leaf block. */ - towrite += (add ? 2 : 1) * l->l_dbuf->db_size; + *towrite += (add ? 2 : 1) * l->l_dbuf->db_size; } zap_put_leaf(l); diff --git a/module/zfs/zap_leaf.c b/module/zfs/zap_leaf.c index 9d8354e73..19a795db8 100644 --- a/module/zfs/zap_leaf.c +++ b/module/zfs/zap_leaf.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -29,6 +28,7 @@ * the names are stored null-terminated. */ +#include <sys/zio.h> #include <sys/spa.h> #include <sys/dmu.h> #include <sys/zfs_context.h> @@ -36,6 +36,7 @@ #include <sys/zap.h> #include <sys/zap_impl.h> #include <sys/zap_leaf.h> +#include <sys/arc.h> static uint16_t *zap_leaf_rehash_entry(zap_leaf_t *l, uint16_t entry); @@ -126,12 +127,12 @@ zap_leaf_byteswap(zap_leaf_phys_t *buf, int size) le = &lc->l_entry; le->le_type = BSWAP_8(le->le_type); - le->le_int_size = BSWAP_8(le->le_int_size); + le->le_value_intlen = BSWAP_8(le->le_value_intlen); le->le_next = BSWAP_16(le->le_next); le->le_name_chunk = BSWAP_16(le->le_name_chunk); - le->le_name_length = BSWAP_16(le->le_name_length); + le->le_name_numints = BSWAP_16(le->le_name_numints); le->le_value_chunk = BSWAP_16(le->le_value_chunk); - le->le_value_length = BSWAP_16(le->le_value_length); + le->le_value_numints = BSWAP_16(le->le_value_numints); le->le_cd = BSWAP_32(le->le_cd); le->le_hash = BSWAP_64(le->le_hash); break; @@ -214,7 +215,7 @@ zap_leaf_chunk_free(zap_leaf_t *l, uint16_t chunk) static uint16_t zap_leaf_array_create(zap_leaf_t *l, const char *buf, - int integer_size, int num_integers) + int integer_size, int num_integers) { uint16_t chunk_head; uint16_t *chunkp = &chunk_head; @@ -272,11 +273,12 @@ zap_leaf_array_free(zap_leaf_t *l, uint16_t *chunkp) static void zap_leaf_array_read(zap_leaf_t *l, uint16_t chunk, int array_int_len, int array_len, int buf_int_len, uint64_t buf_len, - char *buf) + void *buf) { int len = MIN(array_len, buf_len); int byten = 0; uint64_t value = 0; + char *p = buf; ASSERT3U(array_int_len, <=, buf_int_len); @@ -284,7 +286,7 @@ zap_leaf_array_read(zap_leaf_t *l, uint16_t chunk, if (array_int_len == 8 && buf_int_len == 8 && len == 1) { struct zap_leaf_array *la = &ZAP_LEAF_CHUNK(l, chunk).l_array; uint8_t *ip = la->la_array; - uint64_t *buf64 = (uint64_t *)buf; + uint64_t *buf64 = buf; *buf64 = (uint64_t)ip[0] << 56 | (uint64_t)ip[1] << 48 | (uint64_t)ip[2] << 40 | (uint64_t)ip[3] << 32 | @@ -299,8 +301,8 @@ zap_leaf_array_read(zap_leaf_t *l, uint16_t chunk, while (chunk != CHAIN_END) { struct zap_leaf_array *la = &ZAP_LEAF_CHUNK(l, chunk).l_array; - bcopy(la->la_array, buf, ZAP_LEAF_ARRAY_BYTES); - buf += ZAP_LEAF_ARRAY_BYTES; + bcopy(la->la_array, p, ZAP_LEAF_ARRAY_BYTES); + p += ZAP_LEAF_ARRAY_BYTES; chunk = la->la_next; } return; @@ -315,50 +317,69 @@ zap_leaf_array_read(zap_leaf_t *l, uint16_t chunk, value = (value << 8) | la->la_array[i]; byten++; if (byten == array_int_len) { - stv(buf_int_len, buf, value); + stv(buf_int_len, p, value); byten = 0; len--; if (len == 0) return; - buf += buf_int_len; + p += buf_int_len; } } chunk = la->la_next; } } -/* - * Only to be used on 8-bit arrays. - * array_len is actual len in bytes (not encoded le_value_length). - * namenorm is null-terminated. - */ static boolean_t -zap_leaf_array_match(zap_leaf_t *l, zap_name_t *zn, int chunk, int array_len) +zap_leaf_array_match(zap_leaf_t *l, zap_name_t *zn, + int chunk, int array_numints) { int bseen = 0; + if (zap_getflags(zn->zn_zap) & ZAP_FLAG_UINT64_KEY) { + uint64_t *thiskey; + boolean_t match; + + ASSERT(zn->zn_key_intlen == sizeof (*thiskey)); + thiskey = kmem_alloc(array_numints * sizeof (*thiskey), + KM_SLEEP); + + zap_leaf_array_read(l, chunk, sizeof (*thiskey), array_numints, + sizeof (*thiskey), array_numints, thiskey); + match = bcmp(thiskey, zn->zn_key_orig, + array_numints * sizeof (*thiskey)) == 0; + kmem_free(thiskey, array_numints * sizeof (*thiskey)); + return (match); + } + + ASSERT(zn->zn_key_intlen == 1); if (zn->zn_matchtype == MT_FIRST) { - char *thisname = kmem_alloc(array_len, KM_SLEEP); + char *thisname = kmem_alloc(array_numints, KM_SLEEP); boolean_t match; - zap_leaf_array_read(l, chunk, 1, array_len, 1, - array_len, thisname); + zap_leaf_array_read(l, chunk, sizeof (char), array_numints, + sizeof (char), array_numints, thisname); match = zap_match(zn, thisname); - kmem_free(thisname, array_len); + kmem_free(thisname, array_numints); return (match); } - /* Fast path for exact matching */ - while (bseen < array_len) { + /* + * Fast path for exact matching. + * First check that the lengths match, so that we don't read + * past the end of the zn_key_orig array. + */ + if (array_numints != zn->zn_key_orig_numints) + return (B_FALSE); + while (bseen < array_numints) { struct zap_leaf_array *la = &ZAP_LEAF_CHUNK(l, chunk).l_array; - int toread = MIN(array_len - bseen, ZAP_LEAF_ARRAY_BYTES); + int toread = MIN(array_numints - bseen, ZAP_LEAF_ARRAY_BYTES); ASSERT3U(chunk, <, ZAP_LEAF_NUMCHUNKS(l)); - if (bcmp(la->la_array, zn->zn_name_orij + bseen, toread)) + if (bcmp(la->la_array, (char *)zn->zn_key_orig + bseen, toread)) break; chunk = la->la_next; bseen += toread; } - return (bseen == array_len); + return (bseen == array_numints); } /* @@ -393,9 +414,9 @@ again: ASSERT(zn->zn_matchtype == MT_EXACT || (l->l_phys->l_hdr.lh_flags & ZLF_ENTRIES_CDSORTED)); if (zap_leaf_array_match(l, zn, le->le_name_chunk, - le->le_name_length)) { - zeh->zeh_num_integers = le->le_value_length; - zeh->zeh_integer_size = le->le_int_size; + le->le_name_numints)) { + zeh->zeh_num_integers = le->le_value_numints; + zeh->zeh_integer_size = le->le_value_intlen; zeh->zeh_cd = le->le_cd; zeh->zeh_hash = le->le_hash; zeh->zeh_chunkp = chunkp; @@ -426,7 +447,7 @@ zap_leaf_lookup_closest(zap_leaf_t *l, { uint16_t chunk; uint64_t besth = -1ULL; - uint32_t bestcd = ZAP_MAXCD; + uint32_t bestcd = -1U; uint16_t bestlh = ZAP_LEAF_HASH_NUMENTRIES(l)-1; uint16_t lh; struct zap_leaf_entry *le; @@ -448,8 +469,8 @@ zap_leaf_lookup_closest(zap_leaf_t *l, besth = le->le_hash; bestcd = le->le_cd; - zeh->zeh_num_integers = le->le_value_length; - zeh->zeh_integer_size = le->le_int_size; + zeh->zeh_num_integers = le->le_value_numints; + zeh->zeh_integer_size = le->le_value_intlen; zeh->zeh_cd = le->le_cd; zeh->zeh_hash = le->le_hash; zeh->zeh_fakechunk = chunk; @@ -459,7 +480,7 @@ zap_leaf_lookup_closest(zap_leaf_t *l, } } - return (bestcd == ZAP_MAXCD ? ENOENT : 0); + return (bestcd == -1U ? ENOENT : 0); } int @@ -470,11 +491,12 @@ zap_entry_read(const zap_entry_handle_t *zeh, ZAP_LEAF_ENTRY(zeh->zeh_leaf, *zeh->zeh_chunkp); ASSERT3U(le->le_type, ==, ZAP_CHUNK_ENTRY); - if (le->le_int_size > integer_size) + if (le->le_value_intlen > integer_size) return (EINVAL); - zap_leaf_array_read(zeh->zeh_leaf, le->le_value_chunk, le->le_int_size, - le->le_value_length, integer_size, num_integers, buf); + zap_leaf_array_read(zeh->zeh_leaf, le->le_value_chunk, + le->le_value_intlen, le->le_value_numints, + integer_size, num_integers, buf); if (zeh->zeh_num_integers > num_integers) return (EOVERFLOW); @@ -483,15 +505,21 @@ zap_entry_read(const zap_entry_handle_t *zeh, } int -zap_entry_read_name(const zap_entry_handle_t *zeh, uint16_t buflen, char *buf) +zap_entry_read_name(zap_t *zap, const zap_entry_handle_t *zeh, uint16_t buflen, + char *buf) { struct zap_leaf_entry *le = ZAP_LEAF_ENTRY(zeh->zeh_leaf, *zeh->zeh_chunkp); ASSERT3U(le->le_type, ==, ZAP_CHUNK_ENTRY); - zap_leaf_array_read(zeh->zeh_leaf, le->le_name_chunk, 1, - le->le_name_length, 1, buflen, buf); - if (le->le_name_length > buflen) + if (zap_getflags(zap) & ZAP_FLAG_UINT64_KEY) { + zap_leaf_array_read(zeh->zeh_leaf, le->le_name_chunk, 8, + le->le_name_numints, 8, buflen / 8, buf); + } else { + zap_leaf_array_read(zeh->zeh_leaf, le->le_name_chunk, 1, + le->le_name_numints, 1, buflen, buf); + } + if (le->le_name_numints > buflen) return (EOVERFLOW); return (0); } @@ -505,24 +533,16 @@ zap_entry_update(zap_entry_handle_t *zeh, struct zap_leaf_entry *le = ZAP_LEAF_ENTRY(l, *zeh->zeh_chunkp); delta_chunks = ZAP_LEAF_ARRAY_NCHUNKS(num_integers * integer_size) - - ZAP_LEAF_ARRAY_NCHUNKS(le->le_value_length * le->le_int_size); + ZAP_LEAF_ARRAY_NCHUNKS(le->le_value_numints * le->le_value_intlen); if ((int)l->l_phys->l_hdr.lh_nfree < delta_chunks) return (EAGAIN); - /* - * We should search other chained leaves (via - * zap_entry_remove,create?) otherwise returning EAGAIN will - * just send us into an infinite loop if we have to chain - * another leaf block, rather than being able to split this - * block. - */ - zap_leaf_array_free(l, &le->le_value_chunk); le->le_value_chunk = zap_leaf_array_create(l, buf, integer_size, num_integers); - le->le_value_length = num_integers; - le->le_int_size = integer_size; + le->le_value_numints = num_integers; + le->le_value_intlen = integer_size; return (0); } @@ -549,26 +569,25 @@ zap_entry_remove(zap_entry_handle_t *zeh) } int -zap_entry_create(zap_leaf_t *l, const char *name, uint64_t h, uint32_t cd, +zap_entry_create(zap_leaf_t *l, zap_name_t *zn, uint32_t cd, uint8_t integer_size, uint64_t num_integers, const void *buf, zap_entry_handle_t *zeh) { uint16_t chunk; uint16_t *chunkp; struct zap_leaf_entry *le; - uint64_t namelen, valuelen; + uint64_t valuelen; int numchunks; + uint64_t h = zn->zn_hash; valuelen = integer_size * num_integers; - namelen = strlen(name) + 1; - ASSERT(namelen >= 2); - numchunks = 1 + ZAP_LEAF_ARRAY_NCHUNKS(namelen) + - ZAP_LEAF_ARRAY_NCHUNKS(valuelen); + numchunks = 1 + ZAP_LEAF_ARRAY_NCHUNKS(zn->zn_key_orig_numints * + zn->zn_key_intlen) + ZAP_LEAF_ARRAY_NCHUNKS(valuelen); if (numchunks > ZAP_LEAF_NUMCHUNKS(l)) return (E2BIG); - if (cd == ZAP_MAXCD) { + if (cd == ZAP_NEED_CD) { /* find the lowest unused cd */ if (l->l_phys->l_hdr.lh_flags & ZLF_ENTRIES_CDSORTED) { cd = 0; @@ -585,7 +604,7 @@ zap_entry_create(zap_leaf_t *l, const char *name, uint64_t h, uint32_t cd, } } else { /* old unsorted format; do it the O(n^2) way */ - for (cd = 0; cd < ZAP_MAXCD; cd++) { + for (cd = 0; ; cd++) { for (chunk = *LEAF_HASH_ENTPTR(l, h); chunk != CHAIN_END; chunk = le->le_next) { le = ZAP_LEAF_ENTRY(l, chunk); @@ -600,10 +619,10 @@ zap_entry_create(zap_leaf_t *l, const char *name, uint64_t h, uint32_t cd, } } /* - * we would run out of space in a block before we could - * have ZAP_MAXCD entries + * We would run out of space in a block before we could + * store enough entries to run out of CD values. */ - ASSERT3U(cd, <, ZAP_MAXCD); + ASSERT3U(cd, <, zap_maxcd(zn->zn_zap)); } if (l->l_phys->l_hdr.lh_nfree < numchunks) @@ -613,12 +632,13 @@ zap_entry_create(zap_leaf_t *l, const char *name, uint64_t h, uint32_t cd, chunk = zap_leaf_chunk_alloc(l); le = ZAP_LEAF_ENTRY(l, chunk); le->le_type = ZAP_CHUNK_ENTRY; - le->le_name_chunk = zap_leaf_array_create(l, name, 1, namelen); - le->le_name_length = namelen; + le->le_name_chunk = zap_leaf_array_create(l, zn->zn_key_orig, + zn->zn_key_intlen, zn->zn_key_orig_numints); + le->le_name_numints = zn->zn_key_orig_numints; le->le_value_chunk = zap_leaf_array_create(l, buf, integer_size, num_integers); - le->le_value_length = num_integers; - le->le_int_size = integer_size; + le->le_value_numints = num_integers; + le->le_value_intlen = integer_size; le->le_hash = h; le->le_cd = cd; @@ -630,7 +650,7 @@ zap_entry_create(zap_leaf_t *l, const char *name, uint64_t h, uint32_t cd, zeh->zeh_leaf = l; zeh->zeh_num_integers = num_integers; - zeh->zeh_integer_size = le->le_int_size; + zeh->zeh_integer_size = le->le_value_intlen; zeh->zeh_cd = le->le_cd; zeh->zeh_hash = le->le_hash; zeh->zeh_chunkp = chunkp; @@ -672,7 +692,7 @@ zap_entry_normalization_conflict(zap_entry_handle_t *zeh, zap_name_t *zn, allocdzn = B_TRUE; } if (zap_leaf_array_match(zeh->zeh_leaf, zn, - le->le_name_chunk, le->le_name_length)) { + le->le_name_chunk, le->le_name_numints)) { if (allocdzn) zap_name_free(zn); return (B_TRUE); @@ -835,9 +855,9 @@ zap_leaf_stats(zap_t *zap, zap_leaf_t *l, zap_stats_t *zs) struct zap_leaf_entry *le = ZAP_LEAF_ENTRY(l, chunk); - n = 1 + ZAP_LEAF_ARRAY_NCHUNKS(le->le_name_length) + - ZAP_LEAF_ARRAY_NCHUNKS(le->le_value_length * - le->le_int_size); + n = 1 + ZAP_LEAF_ARRAY_NCHUNKS(le->le_name_numints) + + ZAP_LEAF_ARRAY_NCHUNKS(le->le_value_numints * + le->le_value_intlen); n = MIN(n, ZAP_HISTOGRAM_SIZE-1); zs->zs_entries_using_n_chunks[n]++; diff --git a/module/zfs/zap_micro.c b/module/zfs/zap_micro.c index 528d31d5e..2d89c20c4 100644 --- a/module/zfs/zap_micro.c +++ b/module/zfs/zap_micro.c @@ -19,10 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +#include <sys/zio.h> #include <sys/spa.h> #include <sys/dmu.h> #include <sys/zfs_context.h> @@ -31,38 +31,98 @@ #include <sys/zap_impl.h> #include <sys/zap_leaf.h> #include <sys/avl.h> +#include <sys/arc.h> #ifdef _KERNEL #include <sys/sunddi.h> #endif -static int mzap_upgrade(zap_t **zapp, dmu_tx_t *tx); +static int mzap_upgrade(zap_t **zapp, dmu_tx_t *tx, zap_flags_t flags); +uint64_t +zap_getflags(zap_t *zap) +{ + if (zap->zap_ismicro) + return (0); + return (zap->zap_u.zap_fat.zap_phys->zap_flags); +} + +int +zap_hashbits(zap_t *zap) +{ + if (zap_getflags(zap) & ZAP_FLAG_HASH64) + return (48); + else + return (28); +} + +uint32_t +zap_maxcd(zap_t *zap) +{ + if (zap_getflags(zap) & ZAP_FLAG_HASH64) + return ((1<<16)-1); + else + return (-1U); +} static uint64_t -zap_hash(zap_t *zap, const char *normname) +zap_hash(zap_name_t *zn) { - const uint8_t *cp; - uint8_t c; - uint64_t crc = zap->zap_salt; + zap_t *zap = zn->zn_zap; + uint64_t h = 0; - /* NB: name must already be normalized, if necessary */ + if (zap_getflags(zap) & ZAP_FLAG_PRE_HASHED_KEY) { + ASSERT(zap_getflags(zap) & ZAP_FLAG_UINT64_KEY); + h = *(uint64_t *)zn->zn_key_orig; + } else { + h = zap->zap_salt; + ASSERT(h != 0); + ASSERT(zfs_crc64_table[128] == ZFS_CRC64_POLY); + + if (zap_getflags(zap) & ZAP_FLAG_UINT64_KEY) { + int i; + const uint64_t *wp = zn->zn_key_norm; + + ASSERT(zn->zn_key_intlen == 8); + for (i = 0; i < zn->zn_key_norm_numints; wp++, i++) { + int j; + uint64_t word = *wp; + + for (j = 0; j < zn->zn_key_intlen; j++) { + h = (h >> 8) ^ + zfs_crc64_table[(h ^ word) & 0xFF]; + word >>= NBBY; + } + } + } else { + int i, len; + const uint8_t *cp = zn->zn_key_norm; - ASSERT(crc != 0); - ASSERT(zfs_crc64_table[128] == ZFS_CRC64_POLY); - for (cp = (const uint8_t *)normname; (c = *cp) != '\0'; cp++) { - crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ c) & 0xFF]; - } + /* + * We previously stored the terminating null on + * disk, but didn't hash it, so we need to + * continue to not hash it. (The + * zn_key_*_numints includes the terminating + * null for non-binary keys.) + */ + len = zn->zn_key_norm_numints - 1; + ASSERT(zn->zn_key_intlen == 1); + for (i = 0; i < len; cp++, i++) { + h = (h >> 8) ^ + zfs_crc64_table[(h ^ *cp) & 0xFF]; + } + } + } /* - * Only use 28 bits, since we need 4 bits in the cookie for the - * collision differentiator. We MUST use the high bits, since - * those are the ones that we first pay attention to when + * Don't use all 64 bits, since we need some in the cookie for + * the collision differentiator. We MUST use the high bits, + * since those are the ones that we first pay attention to when * chosing the bucket. */ - crc &= ~((1ULL << (64 - ZAP_HASHBITS)) - 1); + h &= ~((1ULL << (64 - zap_hashbits(zap))) - 1); - return (crc); + return (h); } static int @@ -71,6 +131,8 @@ zap_normalize(zap_t *zap, const char *name, char *namenorm) size_t inlen, outlen; int err; + ASSERT(!(zap_getflags(zap) & ZAP_FLAG_UINT64_KEY)); + inlen = strlen(name) + 1; outlen = ZAP_MAXNAMELEN; @@ -85,16 +147,18 @@ zap_normalize(zap_t *zap, const char *name, char *namenorm) boolean_t zap_match(zap_name_t *zn, const char *matchname) { + ASSERT(!(zap_getflags(zn->zn_zap) & ZAP_FLAG_UINT64_KEY)); + if (zn->zn_matchtype == MT_FIRST) { char norm[ZAP_MAXNAMELEN]; if (zap_normalize(zn->zn_zap, matchname, norm) != 0) return (B_FALSE); - return (strcmp(zn->zn_name_norm, norm) == 0); + return (strcmp(zn->zn_key_norm, norm) == 0); } else { /* MT_BEST or MT_EXACT */ - return (strcmp(zn->zn_name_orij, matchname) == 0); + return (strcmp(zn->zn_key_orig, matchname) == 0); } } @@ -104,30 +168,49 @@ zap_name_free(zap_name_t *zn) kmem_free(zn, sizeof (zap_name_t)); } -/* XXX combine this with zap_lockdir()? */ zap_name_t * -zap_name_alloc(zap_t *zap, const char *name, matchtype_t mt) +zap_name_alloc(zap_t *zap, const char *key, matchtype_t mt) { zap_name_t *zn = kmem_alloc(sizeof (zap_name_t), KM_SLEEP); zn->zn_zap = zap; - zn->zn_name_orij = name; + zn->zn_key_intlen = sizeof (*key); + zn->zn_key_orig = key; + zn->zn_key_orig_numints = strlen(zn->zn_key_orig) + 1; zn->zn_matchtype = mt; if (zap->zap_normflags) { - if (zap_normalize(zap, name, zn->zn_normbuf) != 0) { + if (zap_normalize(zap, key, zn->zn_normbuf) != 0) { zap_name_free(zn); return (NULL); } - zn->zn_name_norm = zn->zn_normbuf; + zn->zn_key_norm = zn->zn_normbuf; + zn->zn_key_norm_numints = strlen(zn->zn_key_norm) + 1; } else { if (mt != MT_EXACT) { zap_name_free(zn); return (NULL); } - zn->zn_name_norm = zn->zn_name_orij; + zn->zn_key_norm = zn->zn_key_orig; + zn->zn_key_norm_numints = zn->zn_key_orig_numints; } - zn->zn_hash = zap_hash(zap, zn->zn_name_norm); + zn->zn_hash = zap_hash(zn); + return (zn); +} + +zap_name_t * +zap_name_alloc_uint64(zap_t *zap, const uint64_t *key, int numints) +{ + zap_name_t *zn = kmem_alloc(sizeof (zap_name_t), KM_SLEEP); + + ASSERT(zap->zap_normflags == 0); + zn->zn_zap = zap; + zn->zn_key_intlen = sizeof (*key); + zn->zn_key_orig = zn->zn_key_norm = key; + zn->zn_key_orig_numints = zn->zn_key_norm_numints = numints; + zn->zn_matchtype = MT_EXACT; + + zn->zn_hash = zap_hash(zn); return (zn); } @@ -172,26 +255,26 @@ mze_compare(const void *arg1, const void *arg2) return (+1); if (mze1->mze_hash < mze2->mze_hash) return (-1); - if (mze1->mze_phys.mze_cd > mze2->mze_phys.mze_cd) + if (mze1->mze_cd > mze2->mze_cd) return (+1); - if (mze1->mze_phys.mze_cd < mze2->mze_phys.mze_cd) + if (mze1->mze_cd < mze2->mze_cd) return (-1); return (0); } static void -mze_insert(zap_t *zap, int chunkid, uint64_t hash, mzap_ent_phys_t *mzep) +mze_insert(zap_t *zap, int chunkid, uint64_t hash) { mzap_ent_t *mze; ASSERT(zap->zap_ismicro); ASSERT(RW_WRITE_HELD(&zap->zap_rwlock)); - ASSERT(mzep->mze_cd < ZAP_MAXCD); mze = kmem_alloc(sizeof (mzap_ent_t), KM_SLEEP); mze->mze_chunkid = chunkid; mze->mze_hash = hash; - mze->mze_phys = *mzep; + mze->mze_cd = MZE_PHYS(zap, mze)->mze_cd; + ASSERT(MZE_PHYS(zap, mze)->mze_name[0] != 0); avl_add(&zap->zap_m.zap_avl, mze); } @@ -206,18 +289,16 @@ mze_find(zap_name_t *zn) ASSERT(zn->zn_zap->zap_ismicro); ASSERT(RW_LOCK_HELD(&zn->zn_zap->zap_rwlock)); - if (strlen(zn->zn_name_norm) >= sizeof (mze_tofind.mze_phys.mze_name)) - return (NULL); - mze_tofind.mze_hash = zn->zn_hash; - mze_tofind.mze_phys.mze_cd = 0; + mze_tofind.mze_cd = 0; again: mze = avl_find(avl, &mze_tofind, &idx); if (mze == NULL) mze = avl_nearest(avl, idx, AVL_AFTER); for (; mze && mze->mze_hash == zn->zn_hash; mze = AVL_NEXT(avl, mze)) { - if (zap_match(zn, mze->mze_phys.mze_name)) + ASSERT3U(mze->mze_cd, ==, MZE_PHYS(zn->zn_zap, mze)->mze_cd); + if (zap_match(zn, MZE_PHYS(zn->zn_zap, mze)->mze_name)) return (mze); } if (zn->zn_matchtype == MT_BEST) { @@ -240,12 +321,12 @@ mze_find_unused_cd(zap_t *zap, uint64_t hash) ASSERT(RW_LOCK_HELD(&zap->zap_rwlock)); mze_tofind.mze_hash = hash; - mze_tofind.mze_phys.mze_cd = 0; + mze_tofind.mze_cd = 0; cd = 0; for (mze = avl_find(avl, &mze_tofind, &idx); mze && mze->mze_hash == hash; mze = AVL_NEXT(avl, mze)) { - if (mze->mze_phys.mze_cd != cd) + if (mze->mze_cd != cd) break; cd++; } @@ -329,7 +410,7 @@ mzap_open(objset_t *os, uint64_t obj, dmu_buf_t *db) zap->zap_m.zap_num_entries++; zn = zap_name_alloc(zap, mze->mze_name, MT_EXACT); - mze_insert(zap, i, zn->zn_hash, mze); + mze_insert(zap, i, zn->zn_hash); zap_name_free(zn); } } @@ -371,7 +452,7 @@ zap_lockdir(objset_t *os, uint64_t obj, dmu_tx_t *tx, *zapp = NULL; - err = dmu_buf_hold(os, obj, 0, NULL, &db); + err = dmu_buf_hold(os, obj, 0, NULL, &db, DMU_READ_NO_PREFETCH); if (err) return (err); @@ -421,7 +502,7 @@ zap_lockdir(objset_t *os, uint64_t obj, dmu_tx_t *tx, dprintf("upgrading obj %llu: num_entries=%u\n", obj, zap->zap_m.zap_num_entries); *zapp = zap; - return (mzap_upgrade(zapp, tx)); + return (mzap_upgrade(zapp, tx, 0)); } err = dmu_object_set_blocksize(os, obj, newsz, 0, tx); ASSERT3U(err, ==, 0); @@ -441,10 +522,11 @@ zap_unlockdir(zap_t *zap) } static int -mzap_upgrade(zap_t **zapp, dmu_tx_t *tx) +mzap_upgrade(zap_t **zapp, dmu_tx_t *tx, zap_flags_t flags) { mzap_phys_t *mzp; - int i, sz, nchunks, err; + int i, sz, nchunks; + int err = 0; zap_t *zap = *zapp; ASSERT(RW_WRITE_HELD(&zap->zap_rwlock)); @@ -454,11 +536,13 @@ mzap_upgrade(zap_t **zapp, dmu_tx_t *tx) bcopy(zap->zap_dbuf->db_data, mzp, sz); nchunks = zap->zap_m.zap_num_chunks; - err = dmu_object_set_blocksize(zap->zap_objset, zap->zap_object, - 1ULL << fzap_default_block_shift, 0, tx); - if (err) { - kmem_free(mzp, sz); - return (err); + if (!flags) { + err = dmu_object_set_blocksize(zap->zap_objset, zap->zap_object, + 1ULL << fzap_default_block_shift, 0, tx); + if (err) { + kmem_free(mzp, sz); + return (err); + } } dprintf("upgrading obj=%llu with %u chunks\n", @@ -466,10 +550,9 @@ mzap_upgrade(zap_t **zapp, dmu_tx_t *tx) /* XXX destroy the avl later, so we can use the stored hash value */ mze_destroy(zap); - fzap_upgrade(zap, tx); + fzap_upgrade(zap, tx, flags); for (i = 0; i < nchunks; i++) { - int err; mzap_ent_phys_t *mze = &mzp->mz_chunk[i]; zap_name_t *zn; if (mze->mze_name[0] == 0) @@ -489,12 +572,13 @@ mzap_upgrade(zap_t **zapp, dmu_tx_t *tx) } static void -mzap_create_impl(objset_t *os, uint64_t obj, int normflags, dmu_tx_t *tx) +mzap_create_impl(objset_t *os, uint64_t obj, int normflags, zap_flags_t flags, + dmu_tx_t *tx) { dmu_buf_t *db; mzap_phys_t *zp; - VERIFY(0 == dmu_buf_hold(os, obj, 0, FTAG, &db)); + VERIFY(0 == dmu_buf_hold(os, obj, 0, FTAG, &db, DMU_READ_NO_PREFETCH)); #ifdef ZFS_DEBUG { @@ -510,6 +594,15 @@ mzap_create_impl(objset_t *os, uint64_t obj, int normflags, dmu_tx_t *tx) zp->mz_salt = ((uintptr_t)db ^ (uintptr_t)tx ^ (obj << 1)) | 1ULL; zp->mz_normflags = normflags; dmu_buf_rele(db, FTAG); + + if (flags != 0) { + zap_t *zap; + /* Only fat zap supports flags; upgrade immediately. */ + VERIFY(0 == zap_lockdir(os, obj, tx, RW_WRITER, + B_FALSE, B_FALSE, &zap)); + VERIFY3U(0, ==, mzap_upgrade(&zap, tx, flags)); + zap_unlockdir(zap); + } } int @@ -530,7 +623,7 @@ zap_create_claim_norm(objset_t *os, uint64_t obj, int normflags, err = dmu_object_claim(os, obj, ot, 0, bonustype, bonuslen, tx); if (err != 0) return (err); - mzap_create_impl(os, obj, normflags, tx); + mzap_create_impl(os, obj, normflags, 0, tx); return (0); } @@ -547,7 +640,26 @@ zap_create_norm(objset_t *os, int normflags, dmu_object_type_t ot, { uint64_t obj = dmu_object_alloc(os, ot, 0, bonustype, bonuslen, tx); - mzap_create_impl(os, obj, normflags, tx); + mzap_create_impl(os, obj, normflags, 0, tx); + return (obj); +} + +uint64_t +zap_create_flags(objset_t *os, int normflags, zap_flags_t flags, + dmu_object_type_t ot, int leaf_blockshift, int indirect_blockshift, + dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx) +{ + uint64_t obj = dmu_object_alloc(os, ot, 0, bonustype, bonuslen, tx); + + ASSERT(leaf_blockshift >= SPA_MINBLOCKSHIFT && + leaf_blockshift <= SPA_MAXBLOCKSHIFT && + indirect_blockshift >= SPA_MINBLOCKSHIFT && + indirect_blockshift <= SPA_MAXBLOCKSHIFT); + + VERIFY(dmu_object_set_blocksize(os, obj, + 1ULL << leaf_blockshift, indirect_blockshift, tx) == 0); + + mzap_create_impl(os, obj, normflags, flags, tx); return (obj); } @@ -617,11 +729,11 @@ again: other = avl_walk(&zap->zap_m.zap_avl, other, direction)) { if (zn == NULL) { - zn = zap_name_alloc(zap, mze->mze_phys.mze_name, + zn = zap_name_alloc(zap, MZE_PHYS(zap, mze)->mze_name, MT_FIRST); allocdzn = B_TRUE; } - if (zap_match(zn, other->mze_phys.mze_name)) { + if (zap_match(zn, MZE_PHYS(zap, other)->mze_name)) { if (allocdzn) zap_name_free(zn); return (B_TRUE); @@ -683,9 +795,10 @@ zap_lookup_norm(objset_t *os, uint64_t zapobj, const char *name, } else if (integer_size != 8) { err = EINVAL; } else { - *(uint64_t *)buf = mze->mze_phys.mze_value; + *(uint64_t *)buf = + MZE_PHYS(zap, mze)->mze_value; (void) strlcpy(realname, - mze->mze_phys.mze_name, rn_len); + MZE_PHYS(zap, mze)->mze_name, rn_len); if (ncp) { *ncp = mzap_normalization_conflict(zap, zn, mze); @@ -699,6 +812,63 @@ zap_lookup_norm(objset_t *os, uint64_t zapobj, const char *name, } int +zap_prefetch_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints) +{ + zap_t *zap; + int err; + zap_name_t *zn; + + err = zap_lockdir(os, zapobj, NULL, RW_READER, TRUE, FALSE, &zap); + if (err) + return (err); + zn = zap_name_alloc_uint64(zap, key, key_numints); + if (zn == NULL) { + zap_unlockdir(zap); + return (ENOTSUP); + } + + fzap_prefetch(zn); + zap_name_free(zn); + zap_unlockdir(zap); + return (err); +} + +int +zap_lookup_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf) +{ + zap_t *zap; + int err; + zap_name_t *zn; + + err = zap_lockdir(os, zapobj, NULL, RW_READER, TRUE, FALSE, &zap); + if (err) + return (err); + zn = zap_name_alloc_uint64(zap, key, key_numints); + if (zn == NULL) { + zap_unlockdir(zap); + return (ENOTSUP); + } + + err = fzap_lookup(zn, integer_size, num_integers, buf, + NULL, 0, NULL); + zap_name_free(zn); + zap_unlockdir(zap); + return (err); +} + +int +zap_contains(objset_t *os, uint64_t zapobj, const char *name) +{ + int err = (zap_lookup_norm(os, zapobj, name, 0, + 0, NULL, MT_EXACT, NULL, 0, NULL)); + if (err == EOVERFLOW || err == EINVAL) + err = 0; /* found, but skipped reading the value */ + return (err); +} + +int zap_length(objset_t *os, uint64_t zapobj, const char *name, uint64_t *integer_size, uint64_t *num_integers) { @@ -733,6 +903,28 @@ zap_length(objset_t *os, uint64_t zapobj, const char *name, return (err); } +int +zap_length_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, uint64_t *integer_size, uint64_t *num_integers) +{ + zap_t *zap; + int err; + zap_name_t *zn; + + err = zap_lockdir(os, zapobj, NULL, RW_READER, TRUE, FALSE, &zap); + if (err) + return (err); + zn = zap_name_alloc_uint64(zap, key, key_numints); + if (zn == NULL) { + zap_unlockdir(zap); + return (ENOTSUP); + } + err = fzap_length(zn, integer_size, num_integers); + zap_name_free(zn); + zap_unlockdir(zap); + return (err); +} + static void mzap_addent(zap_name_t *zn, uint64_t value) { @@ -741,20 +933,18 @@ mzap_addent(zap_name_t *zn, uint64_t value) int start = zap->zap_m.zap_alloc_next; uint32_t cd; - dprintf("obj=%llu %s=%llu\n", zap->zap_object, - zn->zn_name_orij, value); ASSERT(RW_WRITE_HELD(&zap->zap_rwlock)); #ifdef ZFS_DEBUG for (i = 0; i < zap->zap_m.zap_num_chunks; i++) { mzap_ent_phys_t *mze = &zap->zap_m.zap_phys->mz_chunk[i]; - ASSERT(strcmp(zn->zn_name_orij, mze->mze_name) != 0); + ASSERT(strcmp(zn->zn_key_orig, mze->mze_name) != 0); } #endif cd = mze_find_unused_cd(zap, zn->zn_hash); /* given the limited size of the microzap, this can't happen */ - ASSERT(cd != ZAP_MAXCD); + ASSERT(cd < zap_maxcd(zap)); again: for (i = start; i < zap->zap_m.zap_num_chunks; i++) { @@ -762,13 +952,13 @@ again: if (mze->mze_name[0] == 0) { mze->mze_value = value; mze->mze_cd = cd; - (void) strcpy(mze->mze_name, zn->zn_name_orij); + (void) strcpy(mze->mze_name, zn->zn_key_orig); zap->zap_m.zap_num_entries++; zap->zap_m.zap_alloc_next = i+1; if (zap->zap_m.zap_alloc_next == zap->zap_m.zap_num_chunks) zap->zap_m.zap_alloc_next = 0; - mze_insert(zap, i, zn->zn_hash, mze); + mze_insert(zap, i, zn->zn_hash); return; } } @@ -780,7 +970,7 @@ again: } int -zap_add(objset_t *os, uint64_t zapobj, const char *name, +zap_add(objset_t *os, uint64_t zapobj, const char *key, int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx) { @@ -793,7 +983,7 @@ zap_add(objset_t *os, uint64_t zapobj, const char *name, err = zap_lockdir(os, zapobj, tx, RW_WRITER, TRUE, TRUE, &zap); if (err) return (err); - zn = zap_name_alloc(zap, name, MT_EXACT); + zn = zap_name_alloc(zap, key, MT_EXACT); if (zn == NULL) { zap_unlockdir(zap); return (ENOTSUP); @@ -802,10 +992,8 @@ zap_add(objset_t *os, uint64_t zapobj, const char *name, err = fzap_add(zn, integer_size, num_integers, val, tx); zap = zn->zn_zap; /* fzap_add() may change zap */ } else if (integer_size != 8 || num_integers != 1 || - strlen(name) >= MZAP_NAME_LEN) { - dprintf("upgrading obj %llu: intsz=%u numint=%llu name=%s\n", - zapobj, integer_size, num_integers, name); - err = mzap_upgrade(&zn->zn_zap, tx); + strlen(key) >= MZAP_NAME_LEN) { + err = mzap_upgrade(&zn->zn_zap, tx, 0); if (err == 0) err = fzap_add(zn, integer_size, num_integers, val, tx); zap = zn->zn_zap; /* fzap_add() may change zap */ @@ -825,15 +1013,50 @@ zap_add(objset_t *os, uint64_t zapobj, const char *name, } int +zap_add_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, int integer_size, uint64_t num_integers, + const void *val, dmu_tx_t *tx) +{ + zap_t *zap; + int err; + zap_name_t *zn; + + err = zap_lockdir(os, zapobj, tx, RW_WRITER, TRUE, TRUE, &zap); + if (err) + return (err); + zn = zap_name_alloc_uint64(zap, key, key_numints); + if (zn == NULL) { + zap_unlockdir(zap); + return (ENOTSUP); + } + err = fzap_add(zn, integer_size, num_integers, val, tx); + zap = zn->zn_zap; /* fzap_add() may change zap */ + zap_name_free(zn); + if (zap != NULL) /* may be NULL if fzap_add() failed */ + zap_unlockdir(zap); + return (err); +} + +int zap_update(objset_t *os, uint64_t zapobj, const char *name, int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx) { zap_t *zap; mzap_ent_t *mze; + uint64_t oldval; const uint64_t *intval = val; zap_name_t *zn; int err; +#ifdef ZFS_DEBUG + /* + * If there is an old value, it shouldn't change across the + * lockdir (eg, due to bprewrite's xlation). + */ + if (integer_size == 8 && num_integers == 1) + (void) zap_lookup(os, zapobj, name, 8, 1, &oldval); +#endif + err = zap_lockdir(os, zapobj, tx, RW_WRITER, TRUE, TRUE, &zap); if (err) return (err); @@ -849,7 +1072,7 @@ zap_update(objset_t *os, uint64_t zapobj, const char *name, strlen(name) >= MZAP_NAME_LEN) { dprintf("upgrading obj %llu: intsz=%u numint=%llu name=%s\n", zapobj, integer_size, num_integers, name); - err = mzap_upgrade(&zn->zn_zap, tx); + err = mzap_upgrade(&zn->zn_zap, tx, 0); if (err == 0) err = fzap_update(zn, integer_size, num_integers, val, tx); @@ -857,9 +1080,8 @@ zap_update(objset_t *os, uint64_t zapobj, const char *name, } else { mze = mze_find(zn); if (mze != NULL) { - mze->mze_phys.mze_value = *intval; - zap->zap_m.zap_phys->mz_chunk - [mze->mze_chunkid].mze_value = *intval; + ASSERT3U(MZE_PHYS(zap, mze)->mze_value, ==, oldval); + MZE_PHYS(zap, mze)->mze_value = *intval; } else { mzap_addent(zn, *intval); } @@ -872,6 +1094,31 @@ zap_update(objset_t *os, uint64_t zapobj, const char *name, } int +zap_update_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, + int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx) +{ + zap_t *zap; + zap_name_t *zn; + int err; + + err = zap_lockdir(os, zapobj, tx, RW_WRITER, TRUE, TRUE, &zap); + if (err) + return (err); + zn = zap_name_alloc_uint64(zap, key, key_numints); + if (zn == NULL) { + zap_unlockdir(zap); + return (ENOTSUP); + } + err = fzap_update(zn, integer_size, num_integers, val, tx); + zap = zn->zn_zap; /* fzap_update() may change zap */ + zap_name_free(zn); + if (zap != NULL) /* may be NULL if fzap_upgrade() failed */ + zap_unlockdir(zap); + return (err); +} + +int zap_remove(objset_t *os, uint64_t zapobj, const char *name, dmu_tx_t *tx) { return (zap_remove_norm(os, zapobj, name, MT_EXACT, tx)); @@ -912,17 +1159,32 @@ zap_remove_norm(objset_t *os, uint64_t zapobj, const char *name, return (err); } +int +zap_remove_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, dmu_tx_t *tx) +{ + zap_t *zap; + int err; + zap_name_t *zn; + + err = zap_lockdir(os, zapobj, tx, RW_WRITER, TRUE, FALSE, &zap); + if (err) + return (err); + zn = zap_name_alloc_uint64(zap, key, key_numints); + if (zn == NULL) { + zap_unlockdir(zap); + return (ENOTSUP); + } + err = fzap_remove(zn, tx); + zap_name_free(zn); + zap_unlockdir(zap); + return (err); +} + /* * Routines for iterating over the attributes. */ -/* - * We want to keep the high 32 bits of the cursor zero if we can, so - * that 32-bit programs can access this. So use a small hash value so - * we can fit 4 bits of cd into the 32-bit cursor. - * - * [ 4 zero bits | 32-bit collision differentiator | 28-bit hash value ] - */ void zap_cursor_init_serialized(zap_cursor_t *zc, objset_t *os, uint64_t zapobj, uint64_t serialized) @@ -931,15 +1193,9 @@ zap_cursor_init_serialized(zap_cursor_t *zc, objset_t *os, uint64_t zapobj, zc->zc_zap = NULL; zc->zc_leaf = NULL; zc->zc_zapobj = zapobj; - if (serialized == -1ULL) { - zc->zc_hash = -1ULL; - zc->zc_cd = 0; - } else { - zc->zc_hash = serialized << (64-ZAP_HASHBITS); - zc->zc_cd = serialized >> ZAP_HASHBITS; - if (zc->zc_cd >= ZAP_MAXCD) /* corrupt serialized */ - zc->zc_cd = 0; - } + zc->zc_serialized = serialized; + zc->zc_hash = 0; + zc->zc_cd = 0; } void @@ -969,10 +1225,21 @@ zap_cursor_serialize(zap_cursor_t *zc) { if (zc->zc_hash == -1ULL) return (-1ULL); - ASSERT((zc->zc_hash & (ZAP_MAXCD-1)) == 0); - ASSERT(zc->zc_cd < ZAP_MAXCD); - return ((zc->zc_hash >> (64-ZAP_HASHBITS)) | - ((uint64_t)zc->zc_cd << ZAP_HASHBITS)); + if (zc->zc_zap == NULL) + return (zc->zc_serialized); + ASSERT((zc->zc_hash & zap_maxcd(zc->zc_zap)) == 0); + ASSERT(zc->zc_cd < zap_maxcd(zc->zc_zap)); + + /* + * We want to keep the high 32 bits of the cursor zero if we can, so + * that 32-bit programs can access this. So usually use a small + * (28-bit) hash value so we can fit 4 bits of cd into the low 32-bits + * of the cursor. + * + * [ collision differentiator | zap_hashbits()-bit hash value ] + */ + return ((zc->zc_hash >> (64 - zap_hashbits(zc->zc_zap))) | + ((uint64_t)zc->zc_cd << zap_hashbits(zc->zc_zap))); } int @@ -987,10 +1254,23 @@ zap_cursor_retrieve(zap_cursor_t *zc, zap_attribute_t *za) return (ENOENT); if (zc->zc_zap == NULL) { + int hb; err = zap_lockdir(zc->zc_objset, zc->zc_zapobj, NULL, RW_READER, TRUE, FALSE, &zc->zc_zap); if (err) return (err); + + /* + * To support zap_cursor_init_serialized, advance, retrieve, + * we must add to the existing zc_cd, which may already + * be 1 due to the zap_cursor_advance. + */ + ASSERT(zc->zc_hash == 0); + hb = zap_hashbits(zc->zc_zap); + zc->zc_hash = zc->zc_serialized << (64 - hb); + zc->zc_cd += zc->zc_serialized >> hb; + if (zc->zc_cd >= zap_maxcd(zc->zc_zap)) /* corrupt serialized */ + zc->zc_cd = 0; } else { rw_enter(&zc->zc_zap->zap_rwlock, RW_READER); } @@ -1000,7 +1280,7 @@ zap_cursor_retrieve(zap_cursor_t *zc, zap_attribute_t *za) err = ENOENT; mze_tofind.mze_hash = zc->zc_hash; - mze_tofind.mze_phys.mze_cd = zc->zc_cd; + mze_tofind.mze_cd = zc->zc_cd; mze = avl_find(&zc->zc_zap->zap_m.zap_avl, &mze_tofind, &idx); if (mze == NULL) { @@ -1008,18 +1288,16 @@ zap_cursor_retrieve(zap_cursor_t *zc, zap_attribute_t *za) idx, AVL_AFTER); } if (mze) { - ASSERT(0 == bcmp(&mze->mze_phys, - &zc->zc_zap->zap_m.zap_phys->mz_chunk - [mze->mze_chunkid], sizeof (mze->mze_phys))); - + mzap_ent_phys_t *mzep = MZE_PHYS(zc->zc_zap, mze); + ASSERT3U(mze->mze_cd, ==, mzep->mze_cd); za->za_normalization_conflict = mzap_normalization_conflict(zc->zc_zap, NULL, mze); za->za_integer_length = 8; za->za_num_integers = 1; - za->za_first_integer = mze->mze_phys.mze_value; - (void) strcpy(za->za_name, mze->mze_phys.mze_name); + za->za_first_integer = mzep->mze_value; + (void) strcpy(za->za_name, mzep->mze_name); zc->zc_hash = mze->mze_hash; - zc->zc_cd = mze->mze_phys.mze_cd; + zc->zc_cd = mze->mze_cd; err = 0; } else { zc->zc_hash = -1ULL; @@ -1035,12 +1313,46 @@ zap_cursor_advance(zap_cursor_t *zc) if (zc->zc_hash == -1ULL) return; zc->zc_cd++; - if (zc->zc_cd >= ZAP_MAXCD) { - zc->zc_cd = 0; - zc->zc_hash += 1ULL<<(64-ZAP_HASHBITS); - if (zc->zc_hash == 0) /* EOF */ - zc->zc_hash = -1ULL; +} + +int +zap_cursor_move_to_key(zap_cursor_t *zc, const char *name, matchtype_t mt) +{ + int err = 0; + mzap_ent_t *mze; + zap_name_t *zn; + + if (zc->zc_zap == NULL) { + err = zap_lockdir(zc->zc_objset, zc->zc_zapobj, NULL, + RW_READER, TRUE, FALSE, &zc->zc_zap); + if (err) + return (err); + } else { + rw_enter(&zc->zc_zap->zap_rwlock, RW_READER); + } + + zn = zap_name_alloc(zc->zc_zap, name, mt); + if (zn == NULL) { + rw_exit(&zc->zc_zap->zap_rwlock); + return (ENOTSUP); + } + + if (!zc->zc_zap->zap_ismicro) { + err = fzap_cursor_move_to_key(zc, zn); + } else { + mze = mze_find(zn); + if (mze == NULL) { + err = ENOENT; + goto out; + } + zc->zc_hash = mze->mze_hash; + zc->zc_cd = mze->mze_cd; } + +out: + zap_name_free(zn); + rw_exit(&zc->zc_zap->zap_rwlock); + return (err); } int diff --git a/module/zfs/zfs_acl.c b/module/zfs/zfs_acl.c index 12ffe9f30..1181bd443 100644 --- a/module/zfs/zfs_acl.c +++ b/module/zfs/zfs_acl.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/types.h> @@ -50,6 +49,7 @@ #include <sys/dmu.h> #include <sys/dnode.h> #include <sys/zap.h> +#include <sys/sa.h> #include "fs/fs_subr.h" #include <acl/acl_common.h> @@ -321,6 +321,82 @@ static acl_ops_t zfs_acl_fuid_ops = { zfs_ace_fuid_data }; +/* + * The following three functions are provided for compatibility with + * older ZPL version in order to determine if the file use to have + * an external ACL and what version of ACL previously existed on the + * file. Would really be nice to not need this, sigh. + */ + +uint64_t +zfs_external_acl(znode_t *zp) +{ + zfs_acl_phys_t acl_phys; + + if (zp->z_is_sa) + return (0); + + VERIFY(0 == sa_lookup(zp->z_sa_hdl, SA_ZPL_ZNODE_ACL(zp->z_zfsvfs), + &acl_phys, sizeof (acl_phys))); + + return (acl_phys.z_acl_extern_obj); +} + +/* + * Determine size of ACL in bytes + * + * This is more complicated than it should be since we have to deal + * with old external ACLs. + */ +static int +zfs_acl_znode_info(znode_t *zp, int *aclsize, int *aclcount, + zfs_acl_phys_t *aclphys) +{ + zfsvfs_t *zfsvfs = zp->z_zfsvfs; + uint64_t acl_count; + int size; + int error; + + if (zp->z_is_sa) { + if ((error = sa_size(zp->z_sa_hdl, SA_ZPL_DACL_ACES(zfsvfs), + &size)) != 0) + return (error); + *aclsize = size; + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_DACL_COUNT(zfsvfs), + &acl_count, sizeof (acl_count))) != 0) + return (error); + *aclcount = acl_count; + } else { + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_ZNODE_ACL(zfsvfs), + aclphys, sizeof (*aclphys))) != 0) + return (error); + + if (aclphys->z_acl_version == ZFS_ACL_VERSION_INITIAL) { + *aclsize = ZFS_ACL_SIZE(aclphys->z_acl_size); + *aclcount = aclphys->z_acl_size; + } else { + *aclsize = aclphys->z_acl_size; + *aclcount = aclphys->z_acl_count; + } + } + return (0); +} + +int +zfs_znode_acl_version(znode_t *zp) +{ + zfs_acl_phys_t acl_phys; + + if (zp->z_is_sa) { + return (ZFS_ACL_VERSION_FUID); + } else { + VERIFY(0 == sa_lookup(zp->z_sa_hdl, + SA_ZPL_ZNODE_ACL(zp->z_zfsvfs), + &acl_phys, sizeof (acl_phys))); + return (acl_phys.z_acl_version); + } +} + static int zfs_acl_version(int version) { @@ -336,7 +412,7 @@ zfs_acl_version_zp(znode_t *zp) return (zfs_acl_version(zp->z_zfsvfs->z_version)); } -static zfs_acl_t * +zfs_acl_t * zfs_acl_alloc(int vers) { zfs_acl_t *aclp; @@ -352,7 +428,7 @@ zfs_acl_alloc(int vers) return (aclp); } -static zfs_acl_node_t * +zfs_acl_node_t * zfs_acl_node_alloc(size_t bytes) { zfs_acl_node_t *aclnode; @@ -463,6 +539,8 @@ zfs_acl_next_ace(zfs_acl_t *aclp, void *start, uint64_t *who, { zfs_acl_node_t *aclnode; + ASSERT(aclp); + if (start == NULL) { aclnode = list_head(&aclp->z_acl); if (aclnode == NULL) @@ -509,6 +587,7 @@ zfs_acl_next_ace(zfs_acl_t *aclp, void *start, uint64_t *who, *who = aclp->z_ops.ace_who_get(acep); aclp->z_next_ace = (caddr_t)aclp->z_next_ace + ace_size; aclnode->z_ace_idx++; + return ((void *)acep); } return (NULL); @@ -542,7 +621,7 @@ zfs_acl_curr_node(zfs_acl_t *aclp) */ int zfs_copy_ace_2_fuid(zfsvfs_t *zfsvfs, vtype_t obj_type, zfs_acl_t *aclp, - void *datap, zfs_ace_t *z_acl, int aclcnt, size_t *size, + void *datap, zfs_ace_t *z_acl, uint64_t aclcnt, size_t *size, zfs_fuid_info_t **fuidp, cred_t *cr) { int i; @@ -773,8 +852,9 @@ zfs_set_ace(zfs_acl_t *aclp, void *acep, uint32_t access_mask, * Determine mode of file based on ACL. * Also, create FUIDs for any User/Group ACEs */ -static uint64_t -zfs_mode_compute(znode_t *zp, zfs_acl_t *aclp) +uint64_t +zfs_mode_compute(uint64_t fmode, zfs_acl_t *aclp, + uint64_t *pflags, uint64_t fuid, uint64_t fgid) { int entry_type; mode_t mode; @@ -785,7 +865,7 @@ zfs_mode_compute(znode_t *zp, zfs_acl_t *aclp) uint32_t access_mask; boolean_t an_exec_denied = B_FALSE; - mode = (zp->z_phys->zp_mode & (S_IFMT | S_ISUID | S_ISGID | S_ISVTX)); + mode = (fmode & (S_IFMT | S_ISUID | S_ISGID | S_ISVTX)); while (acep = zfs_acl_next_ace(aclp, acep, &who, &access_mask, &iflags, &type)) { @@ -803,7 +883,8 @@ zfs_mode_compute(znode_t *zp, zfs_acl_t *aclp) entry_type == OWNING_GROUP)) continue; - if (entry_type == ACE_OWNER) { + if (entry_type == ACE_OWNER || (entry_type == 0 && + who == fuid)) { if ((access_mask & ACE_READ_DATA) && (!(seen & S_IRUSR))) { seen |= S_IRUSR; @@ -825,7 +906,8 @@ zfs_mode_compute(znode_t *zp, zfs_acl_t *aclp) mode |= S_IXUSR; } } - } else if (entry_type == OWNING_GROUP) { + } else if (entry_type == OWNING_GROUP || + (entry_type == ACE_IDENTIFIER_GROUP && who == fgid)) { if ((access_mask & ACE_READ_DATA) && (!(seen & S_IRGRP))) { seen |= S_IRGRP; @@ -930,48 +1012,13 @@ zfs_mode_compute(znode_t *zp, zfs_acl_t *aclp) an_exec_denied = B_TRUE; if (an_exec_denied) - zp->z_phys->zp_flags &= ~ZFS_NO_EXECS_DENIED; + *pflags &= ~ZFS_NO_EXECS_DENIED; else - zp->z_phys->zp_flags |= ZFS_NO_EXECS_DENIED; + *pflags |= ZFS_NO_EXECS_DENIED; return (mode); } -static zfs_acl_t * -zfs_acl_node_read_internal(znode_t *zp, boolean_t will_modify) -{ - zfs_acl_t *aclp; - zfs_acl_node_t *aclnode; - - aclp = zfs_acl_alloc(zp->z_phys->zp_acl.z_acl_version); - - /* - * Version 0 to 1 znode_acl_phys has the size/count fields swapped. - * Version 0 didn't have a size field, only a count. - */ - if (zp->z_phys->zp_acl.z_acl_version == ZFS_ACL_VERSION_INITIAL) { - aclp->z_acl_count = zp->z_phys->zp_acl.z_acl_size; - aclp->z_acl_bytes = ZFS_ACL_SIZE(aclp->z_acl_count); - } else { - aclp->z_acl_count = zp->z_phys->zp_acl.z_acl_count; - aclp->z_acl_bytes = zp->z_phys->zp_acl.z_acl_size; - } - - aclnode = zfs_acl_node_alloc(will_modify ? aclp->z_acl_bytes : 0); - aclnode->z_ace_count = aclp->z_acl_count; - if (will_modify) { - bcopy(zp->z_phys->zp_acl.z_ace_data, aclnode->z_acldata, - aclp->z_acl_bytes); - } else { - aclnode->z_size = aclp->z_acl_bytes; - aclnode->z_acldata = &zp->z_phys->zp_acl.z_ace_data[0]; - } - - list_insert_head(&aclp->z_acl, aclnode); - - return (aclp); -} - /* * Read an external acl object. If the intent is to modify, always * create a new acl and leave any cached acl in place. @@ -979,12 +1026,13 @@ zfs_acl_node_read_internal(znode_t *zp, boolean_t will_modify) static int zfs_acl_node_read(znode_t *zp, zfs_acl_t **aclpp, boolean_t will_modify) { - uint64_t extacl = zp->z_phys->zp_acl.z_acl_extern_obj; zfs_acl_t *aclp; - size_t aclsize; - size_t acl_count; + int aclsize; + int acl_count; zfs_acl_node_t *aclnode; - int error; + zfs_acl_phys_t znode_acl; + int version; + int error; ASSERT(MUTEX_HELD(&zp->z_acl_lock)); @@ -993,48 +1041,110 @@ zfs_acl_node_read(znode_t *zp, zfs_acl_t **aclpp, boolean_t will_modify) return (0); } - if (zp->z_phys->zp_acl.z_acl_extern_obj == 0) { - *aclpp = zfs_acl_node_read_internal(zp, will_modify); - if (!will_modify) - zp->z_acl_cached = *aclpp; - return (0); - } + version = ZNODE_ACL_VERSION(zp); - aclp = zfs_acl_alloc(zp->z_phys->zp_acl.z_acl_version); - if (zp->z_phys->zp_acl.z_acl_version == ZFS_ACL_VERSION_INITIAL) { - zfs_acl_phys_v0_t *zacl0 = - (zfs_acl_phys_v0_t *)&zp->z_phys->zp_acl; + if ((error = zfs_acl_znode_info(zp, &aclsize, + &acl_count, &znode_acl)) != 0) + return (error); + + aclp = zfs_acl_alloc(version); - aclsize = ZFS_ACL_SIZE(zacl0->z_acl_count); - acl_count = zacl0->z_acl_count; - } else { - aclsize = zp->z_phys->zp_acl.z_acl_size; - acl_count = zp->z_phys->zp_acl.z_acl_count; - if (aclsize == 0) - aclsize = acl_count * sizeof (zfs_ace_t); - } - aclnode = zfs_acl_node_alloc(aclsize); - list_insert_head(&aclp->z_acl, aclnode); - error = dmu_read(zp->z_zfsvfs->z_os, extacl, 0, - aclsize, aclnode->z_acldata, DMU_READ_PREFETCH); - aclnode->z_ace_count = acl_count; aclp->z_acl_count = acl_count; aclp->z_acl_bytes = aclsize; + aclnode = zfs_acl_node_alloc(aclsize); + aclnode->z_ace_count = aclp->z_acl_count; + aclnode->z_size = aclsize; + + if (!zp->z_is_sa) { + if (znode_acl.z_acl_extern_obj) { + error = dmu_read(zp->z_zfsvfs->z_os, + znode_acl.z_acl_extern_obj, 0, aclnode->z_size, + aclnode->z_acldata, DMU_READ_PREFETCH); + } else { + bcopy(znode_acl.z_ace_data, aclnode->z_acldata, + aclnode->z_size); + } + } else { + error = sa_lookup(zp->z_sa_hdl, SA_ZPL_DACL_ACES(zp->z_zfsvfs), + aclnode->z_acldata, aclnode->z_size); + } + if (error != 0) { zfs_acl_free(aclp); + zfs_acl_node_free(aclnode); /* convert checksum errors into IO errors */ if (error == ECKSUM) error = EIO; return (error); } + list_insert_head(&aclp->z_acl, aclnode); + *aclpp = aclp; if (!will_modify) zp->z_acl_cached = aclp; return (0); } +/*ARGSUSED*/ +void +zfs_acl_data_locator(void **dataptr, uint32_t *length, uint32_t buflen, + boolean_t start, void *userdata) +{ + zfs_acl_locator_cb_t *cb = (zfs_acl_locator_cb_t *)userdata; + + if (start) { + cb->cb_acl_node = list_head(&cb->cb_aclp->z_acl); + } else { + cb->cb_acl_node = list_next(&cb->cb_aclp->z_acl, + cb->cb_acl_node); + } + *dataptr = cb->cb_acl_node->z_acldata; + *length = cb->cb_acl_node->z_size; +} + + +static int +zfs_acl_get_owner_fuids(znode_t *zp, uint64_t *fuid, uint64_t *fgid) +{ + int count = 0; + sa_bulk_attr_t bulk[2]; + int error; + + if (IS_EPHEMERAL(zp->z_uid) || IS_EPHEMERAL(zp->z_gid)) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zp->z_zfsvfs), NULL, + &fuid, sizeof (fuid)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zp->z_zfsvfs), NULL, + &fgid, sizeof (fuid)); + if ((error = sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) != 0) { + return (error); + } + } else { + *fuid = zp->z_uid; + *fgid = zp->z_gid; + } + return (0); +} + +int +zfs_acl_chown_setattr(znode_t *zp) +{ + int error; + zfs_acl_t *aclp; + uint64_t fuid, fgid; + + if ((error = zfs_acl_get_owner_fuids(zp, &fuid, &fgid)) != 0) + return (error); + + mutex_enter(&zp->z_acl_lock); + if ((error = zfs_acl_node_read(zp, &aclp, B_FALSE)) == 0) + zp->z_mode = zfs_mode_compute(zp->z_mode, aclp, + &zp->z_pflags, fuid, fgid); + mutex_exit(&zp->z_acl_lock); + return (error); +} + /* * common code for setting ACLs. * @@ -1045,28 +1155,38 @@ zfs_acl_node_read(znode_t *zp, zfs_acl_t **aclpp, boolean_t will_modify) int zfs_aclset_common(znode_t *zp, zfs_acl_t *aclp, cred_t *cr, dmu_tx_t *tx) { - int error; - znode_phys_t *zphys = zp->z_phys; - zfs_acl_phys_t *zacl = &zphys->zp_acl; - zfsvfs_t *zfsvfs = zp->z_zfsvfs; - uint64_t aoid = zphys->zp_acl.z_acl_extern_obj; - uint64_t off = 0; - dmu_object_type_t otype; - zfs_acl_node_t *aclnode; + int error; + zfsvfs_t *zfsvfs = zp->z_zfsvfs; + dmu_object_type_t otype; + zfs_acl_locator_cb_t locate = { 0 }; + uint64_t mode; + sa_bulk_attr_t bulk[5]; + uint64_t ctime[2]; + int count = 0; + uint64_t fuid, fgid; + + mode = zp->z_mode; + + if ((error = zfs_acl_get_owner_fuids(zp, &fuid, &fgid)) != 0) + return (error); + + mode = zfs_mode_compute(mode, aclp, &zp->z_pflags, fuid, fgid); - dmu_buf_will_dirty(zp->z_dbuf, tx); + zp->z_mode = mode; + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, + &mode, sizeof (mode)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, sizeof (zp->z_pflags)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, + &ctime, sizeof (ctime)); if (zp->z_acl_cached) { zfs_acl_free(zp->z_acl_cached); zp->z_acl_cached = NULL; } - zphys->zp_mode = zfs_mode_compute(zp, aclp); - /* - * Decide which object type to use. If we are forced to - * use old ACL format then transform ACL into zfs_oldace_t - * layout. + * Upgrade needed? */ if (!zfsvfs->z_use_fuids) { otype = DMU_OT_OLDACL; @@ -1078,84 +1198,113 @@ zfs_aclset_common(znode_t *zp, zfs_acl_t *aclp, cred_t *cr, dmu_tx_t *tx) otype = DMU_OT_ACL; } - if (aclp->z_acl_bytes > ZFS_ACE_SPACE) { - /* - * If ACL was previously external and we are now - * converting to new ACL format then release old - * ACL object and create a new one. - */ - if (aoid && aclp->z_version != zacl->z_acl_version) { - error = dmu_object_free(zfsvfs->z_os, - zp->z_phys->zp_acl.z_acl_extern_obj, tx); - if (error) - return (error); - aoid = 0; - } - if (aoid == 0) { - aoid = dmu_object_alloc(zfsvfs->z_os, - otype, aclp->z_acl_bytes, - otype == DMU_OT_ACL ? DMU_OT_SYSACL : DMU_OT_NONE, - otype == DMU_OT_ACL ? DN_MAX_BONUSLEN : 0, tx); + /* + * Arrgh, we have to handle old on disk format + * as well as newer (preferred) SA format. + */ + + if (zp->z_is_sa) { /* the easy case, just update the ACL attribute */ + locate.cb_aclp = aclp; + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_DACL_ACES(zfsvfs), + zfs_acl_data_locator, &locate, aclp->z_acl_bytes); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_DACL_COUNT(zfsvfs), + NULL, &aclp->z_acl_count, sizeof (uint64_t)); + } else { /* Painful legacy way */ + zfs_acl_node_t *aclnode; + uint64_t off = 0; + zfs_acl_phys_t acl_phys; + uint64_t aoid; + + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_ZNODE_ACL(zfsvfs), + &acl_phys, sizeof (acl_phys))) != 0) + return (error); + + aoid = acl_phys.z_acl_extern_obj; + + if (aclp->z_acl_bytes > ZFS_ACE_SPACE) { + /* + * If ACL was previously external and we are now + * converting to new ACL format then release old + * ACL object and create a new one. + */ + if (aoid && + aclp->z_version != acl_phys.z_acl_version) { + error = dmu_object_free(zfsvfs->z_os, aoid, tx); + if (error) + return (error); + aoid = 0; + } + if (aoid == 0) { + aoid = dmu_object_alloc(zfsvfs->z_os, + otype, aclp->z_acl_bytes, + otype == DMU_OT_ACL ? + DMU_OT_SYSACL : DMU_OT_NONE, + otype == DMU_OT_ACL ? + DN_MAX_BONUSLEN : 0, tx); + } else { + (void) dmu_object_set_blocksize(zfsvfs->z_os, + aoid, aclp->z_acl_bytes, 0, tx); + } + acl_phys.z_acl_extern_obj = aoid; + for (aclnode = list_head(&aclp->z_acl); aclnode; + aclnode = list_next(&aclp->z_acl, aclnode)) { + if (aclnode->z_ace_count == 0) + continue; + dmu_write(zfsvfs->z_os, aoid, off, + aclnode->z_size, aclnode->z_acldata, tx); + off += aclnode->z_size; + } } else { - (void) dmu_object_set_blocksize(zfsvfs->z_os, aoid, - aclp->z_acl_bytes, 0, tx); - } - zphys->zp_acl.z_acl_extern_obj = aoid; - for (aclnode = list_head(&aclp->z_acl); aclnode; - aclnode = list_next(&aclp->z_acl, aclnode)) { - if (aclnode->z_ace_count == 0) - continue; - dmu_write(zfsvfs->z_os, aoid, off, - aclnode->z_size, aclnode->z_acldata, tx); - off += aclnode->z_size; + void *start = acl_phys.z_ace_data; + /* + * Migrating back embedded? + */ + if (acl_phys.z_acl_extern_obj) { + error = dmu_object_free(zfsvfs->z_os, + acl_phys.z_acl_extern_obj, tx); + if (error) + return (error); + acl_phys.z_acl_extern_obj = 0; + } + + for (aclnode = list_head(&aclp->z_acl); aclnode; + aclnode = list_next(&aclp->z_acl, aclnode)) { + if (aclnode->z_ace_count == 0) + continue; + bcopy(aclnode->z_acldata, start, + aclnode->z_size); + start = (caddr_t)start + aclnode->z_size; + } } - } else { - void *start = zacl->z_ace_data; /* - * Migrating back embedded? + * If Old version then swap count/bytes to match old + * layout of znode_acl_phys_t. */ - if (zphys->zp_acl.z_acl_extern_obj) { - error = dmu_object_free(zfsvfs->z_os, - zp->z_phys->zp_acl.z_acl_extern_obj, tx); - if (error) - return (error); - zphys->zp_acl.z_acl_extern_obj = 0; - } - - for (aclnode = list_head(&aclp->z_acl); aclnode; - aclnode = list_next(&aclp->z_acl, aclnode)) { - if (aclnode->z_ace_count == 0) - continue; - bcopy(aclnode->z_acldata, start, aclnode->z_size); - start = (caddr_t)start + aclnode->z_size; + if (aclp->z_version == ZFS_ACL_VERSION_INITIAL) { + acl_phys.z_acl_size = aclp->z_acl_count; + acl_phys.z_acl_count = aclp->z_acl_bytes; + } else { + acl_phys.z_acl_size = aclp->z_acl_bytes; + acl_phys.z_acl_count = aclp->z_acl_count; } - } + acl_phys.z_acl_version = aclp->z_version; - /* - * If Old version then swap count/bytes to match old - * layout of znode_acl_phys_t. - */ - if (aclp->z_version == ZFS_ACL_VERSION_INITIAL) { - zphys->zp_acl.z_acl_size = aclp->z_acl_count; - zphys->zp_acl.z_acl_count = aclp->z_acl_bytes; - } else { - zphys->zp_acl.z_acl_size = aclp->z_acl_bytes; - zphys->zp_acl.z_acl_count = aclp->z_acl_count; + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ZNODE_ACL(zfsvfs), NULL, + &acl_phys, sizeof (acl_phys)); } - zphys->zp_acl.z_acl_version = aclp->z_version; - /* * Replace ACL wide bits, but first clear them. */ - zp->z_phys->zp_flags &= ~ZFS_ACL_WIDE_FLAGS; + zp->z_pflags &= ~ZFS_ACL_WIDE_FLAGS; - zp->z_phys->zp_flags |= aclp->z_hints; + zp->z_pflags |= aclp->z_hints; if (ace_trivial_common(aclp, 0, zfs_ace_walk) == 0) - zp->z_phys->zp_flags |= ZFS_ACL_TRIVIAL; + zp->z_pflags |= ZFS_ACL_TRIVIAL; - return (0); + zfs_tstamp_update_setup(zp, STATE_CHANGED, NULL, ctime, B_TRUE); + return (sa_bulk_update(zp->z_sa_hdl, bulk, count, tx)); } /* @@ -1225,314 +1374,64 @@ zfs_acl_prepend_fixup(zfs_acl_t *aclp, void *acep, void *origacep, aclp->z_ops.ace_mask_set(acep, acepmask); } -/* - * Apply mode to canonical six ACEs. - */ static void -zfs_acl_fixup_canonical_six(zfs_acl_t *aclp, mode_t mode) -{ - zfs_acl_node_t *aclnode = list_tail(&aclp->z_acl); - void *acep; - int maskoff = aclp->z_ops.ace_mask_off(); - size_t abstract_size = aclp->z_ops.ace_abstract_size(); - - ASSERT(aclnode != NULL); - - acep = (void *)((caddr_t)aclnode->z_acldata + - aclnode->z_size - (abstract_size * 6)); - - /* - * Fixup final ACEs to match the mode - */ - - adjust_ace_pair_common(acep, maskoff, abstract_size, - (mode & 0700) >> 6); /* owner@ */ - - acep = (caddr_t)acep + (abstract_size * 2); - - adjust_ace_pair_common(acep, maskoff, abstract_size, - (mode & 0070) >> 3); /* group@ */ - - acep = (caddr_t)acep + (abstract_size * 2); - adjust_ace_pair_common(acep, maskoff, - abstract_size, mode); /* everyone@ */ -} - - -static int -zfs_acl_ace_match(zfs_acl_t *aclp, void *acep, int allow_deny, - int entry_type, int accessmask) -{ - uint32_t mask = aclp->z_ops.ace_mask_get(acep); - uint16_t type = aclp->z_ops.ace_type_get(acep); - uint16_t flags = aclp->z_ops.ace_flags_get(acep); - - return (mask == accessmask && type == allow_deny && - ((flags & ACE_TYPE_FLAGS) == entry_type)); -} - -/* - * Can prepended ACE be reused? - */ -static int -zfs_reuse_deny(zfs_acl_t *aclp, void *acep, void *prevacep) +zfs_acl_chmod(zfsvfs_t *zfsvfs, uint64_t mode, zfs_acl_t *aclp) { - int okay_masks; - uint16_t prevtype; - uint16_t prevflags; - uint16_t flags; - uint32_t mask, prevmask; - - if (prevacep == NULL) - return (B_FALSE); - - prevtype = aclp->z_ops.ace_type_get(prevacep); - prevflags = aclp->z_ops.ace_flags_get(prevacep); - flags = aclp->z_ops.ace_flags_get(acep); - mask = aclp->z_ops.ace_mask_get(acep); - prevmask = aclp->z_ops.ace_mask_get(prevacep); - - if (prevtype != DENY) - return (B_FALSE); - - if (prevflags != (flags & ACE_IDENTIFIER_GROUP)) - return (B_FALSE); - - okay_masks = (mask & OKAY_MASK_BITS); - - if (prevmask & ~okay_masks) - return (B_FALSE); - - return (B_TRUE); -} - - -/* - * Insert new ACL node into chain of zfs_acl_node_t's - * - * This will result in two possible results. - * 1. If the ACL is currently just a single zfs_acl_node and - * we are prepending the entry then current acl node will have - * a new node inserted above it. - * - * 2. If we are inserting in the middle of current acl node then - * the current node will be split in two and new node will be inserted - * in between the two split nodes. - */ -static zfs_acl_node_t * -zfs_acl_ace_insert(zfs_acl_t *aclp, void *acep) -{ - zfs_acl_node_t *newnode; - zfs_acl_node_t *trailernode = NULL; - zfs_acl_node_t *currnode = zfs_acl_curr_node(aclp); - int curr_idx = aclp->z_curr_node->z_ace_idx; - int trailer_count; - size_t oldsize; - - newnode = zfs_acl_node_alloc(aclp->z_ops.ace_size(acep)); - newnode->z_ace_count = 1; - - oldsize = currnode->z_size; - - if (curr_idx != 1) { - trailernode = zfs_acl_node_alloc(0); - trailernode->z_acldata = acep; - - trailer_count = currnode->z_ace_count - curr_idx + 1; - currnode->z_ace_count = curr_idx - 1; - currnode->z_size = (caddr_t)acep - (caddr_t)currnode->z_acldata; - trailernode->z_size = oldsize - currnode->z_size; - trailernode->z_ace_count = trailer_count; - } - - aclp->z_acl_count += 1; - aclp->z_acl_bytes += aclp->z_ops.ace_size(acep); - - if (curr_idx == 1) - list_insert_before(&aclp->z_acl, currnode, newnode); - else - list_insert_after(&aclp->z_acl, currnode, newnode); - if (trailernode) { - list_insert_after(&aclp->z_acl, newnode, trailernode); - aclp->z_curr_node = trailernode; - trailernode->z_ace_idx = 1; - } - - return (newnode); -} - -/* - * Prepend deny ACE - */ -static void * -zfs_acl_prepend_deny(uint64_t uid, zfs_acl_t *aclp, void *acep, - mode_t mode) -{ - zfs_acl_node_t *aclnode; - void *newacep; - uint64_t fuid; - uint16_t flags; - - aclnode = zfs_acl_ace_insert(aclp, acep); - newacep = aclnode->z_acldata; - fuid = aclp->z_ops.ace_who_get(acep); - flags = aclp->z_ops.ace_flags_get(acep); - zfs_set_ace(aclp, newacep, 0, DENY, fuid, (flags & ACE_TYPE_FLAGS)); - zfs_acl_prepend_fixup(aclp, newacep, acep, mode, uid); - - return (newacep); -} - -/* - * Split an inherited ACE into inherit_only ACE - * and original ACE with inheritance flags stripped off. - */ -static void -zfs_acl_split_ace(zfs_acl_t *aclp, zfs_ace_hdr_t *acep) -{ - zfs_acl_node_t *aclnode; - zfs_acl_node_t *currnode; - void *newacep; - uint16_t type, flags; - uint32_t mask; - uint64_t fuid; - - type = aclp->z_ops.ace_type_get(acep); - flags = aclp->z_ops.ace_flags_get(acep); - mask = aclp->z_ops.ace_mask_get(acep); - fuid = aclp->z_ops.ace_who_get(acep); - - aclnode = zfs_acl_ace_insert(aclp, acep); - newacep = aclnode->z_acldata; - - aclp->z_ops.ace_type_set(newacep, type); - aclp->z_ops.ace_flags_set(newacep, flags | ACE_INHERIT_ONLY_ACE); - aclp->z_ops.ace_mask_set(newacep, mask); - aclp->z_ops.ace_type_set(newacep, type); - aclp->z_ops.ace_who_set(newacep, fuid); - aclp->z_next_ace = acep; - flags &= ~ALL_INHERIT; - aclp->z_ops.ace_flags_set(acep, flags); - currnode = zfs_acl_curr_node(aclp); - ASSERT(currnode->z_ace_idx >= 1); - currnode->z_ace_idx -= 1; -} - -/* - * Are ACES started at index i, the canonical six ACES? - */ -static int -zfs_have_canonical_six(zfs_acl_t *aclp) -{ - void *acep; - zfs_acl_node_t *aclnode = list_tail(&aclp->z_acl); - int i = 0; - size_t abstract_size = aclp->z_ops.ace_abstract_size(); - - ASSERT(aclnode != NULL); - - if (aclnode->z_ace_count < 6) - return (0); - - acep = (void *)((caddr_t)aclnode->z_acldata + - aclnode->z_size - (aclp->z_ops.ace_abstract_size() * 6)); - - if ((zfs_acl_ace_match(aclp, (caddr_t)acep + (abstract_size * i++), - DENY, ACE_OWNER, 0) && - zfs_acl_ace_match(aclp, (caddr_t)acep + (abstract_size * i++), - ALLOW, ACE_OWNER, OWNER_ALLOW_MASK) && - zfs_acl_ace_match(aclp, (caddr_t)acep + (abstract_size * i++), DENY, - OWNING_GROUP, 0) && zfs_acl_ace_match(aclp, (caddr_t)acep + - (abstract_size * i++), - ALLOW, OWNING_GROUP, 0) && - zfs_acl_ace_match(aclp, (caddr_t)acep + (abstract_size * i++), - DENY, ACE_EVERYONE, EVERYONE_DENY_MASK) && - zfs_acl_ace_match(aclp, (caddr_t)acep + (abstract_size * i++), - ALLOW, ACE_EVERYONE, EVERYONE_ALLOW_MASK))) { - return (1); - } else { - return (0); - } -} - - -/* - * Apply step 1g, to group entries - * - * Need to deal with corner case where group may have - * greater permissions than owner. If so then limit - * group permissions, based on what extra permissions - * group has. - */ -static void -zfs_fixup_group_entries(zfs_acl_t *aclp, void *acep, void *prevacep, - mode_t mode) -{ - uint32_t prevmask = aclp->z_ops.ace_mask_get(prevacep); - uint32_t mask = aclp->z_ops.ace_mask_get(acep); - uint16_t prevflags = aclp->z_ops.ace_flags_get(prevacep); - mode_t extramode = (mode >> 3) & 07; - mode_t ownermode = (mode >> 6); - - if (prevflags & ACE_IDENTIFIER_GROUP) { - - extramode &= ~ownermode; - - if (extramode) { - if (extramode & S_IROTH) { - prevmask &= ~ACE_READ_DATA; - mask &= ~ACE_READ_DATA; - } - if (extramode & S_IWOTH) { - prevmask &= ~(ACE_WRITE_DATA|ACE_APPEND_DATA); - mask &= ~(ACE_WRITE_DATA|ACE_APPEND_DATA); - } - if (extramode & S_IXOTH) { - prevmask &= ~ACE_EXECUTE; - mask &= ~ACE_EXECUTE; - } - } - } - aclp->z_ops.ace_mask_set(acep, mask); - aclp->z_ops.ace_mask_set(prevacep, prevmask); -} - -/* - * Apply the chmod algorithm as described - * in PSARC/2002/240 - */ -static void -zfs_acl_chmod(zfsvfs_t *zfsvfs, uint64_t uid, - uint64_t mode, zfs_acl_t *aclp) -{ - void *acep = NULL, *prevacep = NULL; + void *acep = NULL; uint64_t who; - int i; + int new_count, new_bytes; + int ace_size; int entry_type; - int reuse_deny; - int need_canonical_six = 1; uint16_t iflags, type; uint32_t access_mask; - - /* - * If discard then just discard all ACL nodes which - * represent the ACEs. - * - * New owner@/group@/everone@ ACEs will be added - * later. - */ - if (zfsvfs->z_acl_mode == ZFS_ACL_DISCARD) - zfs_acl_release_nodes(aclp); + zfs_acl_node_t *newnode; + size_t abstract_size = aclp->z_ops.ace_abstract_size(); + void *zacep; + uint32_t owner, group, everyone; + uint32_t deny1, deny2, allow0; + + new_count = new_bytes = 0; + + acl_trivial_access_masks((mode_t)mode, &allow0, &deny1, &deny2, + &owner, &group, &everyone); + + newnode = zfs_acl_node_alloc((abstract_size * 6) + aclp->z_acl_bytes); + + zacep = newnode->z_acldata; + if (allow0) { + zfs_set_ace(aclp, zacep, allow0, ALLOW, -1, ACE_OWNER); + zacep = (void *)((uintptr_t)zacep + abstract_size); + new_count++; + new_bytes += abstract_size; + } if (deny1) { + zfs_set_ace(aclp, zacep, deny1, DENY, -1, ACE_OWNER); + zacep = (void *)((uintptr_t)zacep + abstract_size); + new_count++; + new_bytes += abstract_size; + } + if (deny2) { + zfs_set_ace(aclp, zacep, deny2, DENY, -1, OWNING_GROUP); + zacep = (void *)((uintptr_t)zacep + abstract_size); + new_count++; + new_bytes += abstract_size; + } while (acep = zfs_acl_next_ace(aclp, acep, &who, &access_mask, &iflags, &type)) { + uint16_t inherit_flags; entry_type = (iflags & ACE_TYPE_FLAGS); - iflags = (iflags & ALL_INHERIT); + inherit_flags = (iflags & ALL_INHERIT); + + if ((entry_type == ACE_OWNER || entry_type == ACE_EVERYONE || + (entry_type == OWNING_GROUP)) && + ((inherit_flags & ACE_INHERIT_ONLY_ACE) == 0)) { + continue; + } if ((type != ALLOW && type != DENY) || - (iflags & ACE_INHERIT_ONLY_ACE)) { - if (iflags) + (inherit_flags & ACE_INHERIT_ONLY_ACE)) { + if (inherit_flags) aclp->z_hints |= ZFS_INHERIT_ACE; switch (type) { case ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE: @@ -1542,116 +1441,59 @@ zfs_acl_chmod(zfsvfs_t *zfsvfs, uint64_t uid, aclp->z_hints |= ZFS_ACL_OBJ_ACE; break; } - goto nextace; - } - - /* - * Need to split ace into two? - */ - if ((iflags & (ACE_FILE_INHERIT_ACE| - ACE_DIRECTORY_INHERIT_ACE)) && - (!(iflags & ACE_INHERIT_ONLY_ACE))) { - zfs_acl_split_ace(aclp, acep); - aclp->z_hints |= ZFS_INHERIT_ACE; - goto nextace; - } - - if (entry_type == ACE_OWNER || entry_type == ACE_EVERYONE || - (entry_type == OWNING_GROUP)) { - access_mask &= ~OGE_CLEAR; - aclp->z_ops.ace_mask_set(acep, access_mask); - goto nextace; } else { - reuse_deny = B_TRUE; - if (type == ALLOW) { - - /* - * Check preceding ACE if any, to see - * if we need to prepend a DENY ACE. - * This is only applicable when the acl_mode - * property == groupmask. - */ - if (zfsvfs->z_acl_mode == ZFS_ACL_GROUPMASK) { - - reuse_deny = zfs_reuse_deny(aclp, acep, - prevacep); - - if (!reuse_deny) { - prevacep = - zfs_acl_prepend_deny(uid, - aclp, acep, mode); - } else { - zfs_acl_prepend_fixup( - aclp, prevacep, - acep, mode, uid); - } - zfs_fixup_group_entries(aclp, acep, - prevacep, mode); - } - } - } -nextace: - prevacep = acep; - } - - /* - * Check out last six aces, if we have six. - */ - if (aclp->z_acl_count >= 6) { - if (zfs_have_canonical_six(aclp)) { - need_canonical_six = 0; + /* + * Limit permissions to be no greater than + * group permissions + */ + if (zfsvfs->z_acl_inherit == ZFS_ACL_RESTRICTED) { + if (!(mode & S_IRGRP)) + access_mask &= ~ACE_READ_DATA; + if (!(mode & S_IWGRP)) + access_mask &= + ~(ACE_WRITE_DATA|ACE_APPEND_DATA); + if (!(mode & S_IXGRP)) + access_mask &= ~ACE_EXECUTE; + access_mask &= + ~(ACE_WRITE_OWNER|ACE_WRITE_ACL| + ACE_WRITE_ATTRIBUTES|ACE_WRITE_NAMED_ATTRS); + } } - } - - if (need_canonical_six) { - size_t abstract_size = aclp->z_ops.ace_abstract_size(); - void *zacep; - zfs_acl_node_t *aclnode = - zfs_acl_node_alloc(abstract_size * 6); - - aclnode->z_size = abstract_size * 6; - aclnode->z_ace_count = 6; - aclp->z_acl_bytes += aclnode->z_size; - list_insert_tail(&aclp->z_acl, aclnode); - - zacep = aclnode->z_acldata; - - i = 0; - zfs_set_ace(aclp, (caddr_t)zacep + (abstract_size * i++), - 0, DENY, -1, ACE_OWNER); - zfs_set_ace(aclp, (caddr_t)zacep + (abstract_size * i++), - OWNER_ALLOW_MASK, ALLOW, -1, ACE_OWNER); - zfs_set_ace(aclp, (caddr_t)zacep + (abstract_size * i++), 0, - DENY, -1, OWNING_GROUP); - zfs_set_ace(aclp, (caddr_t)zacep + (abstract_size * i++), 0, - ALLOW, -1, OWNING_GROUP); - zfs_set_ace(aclp, (caddr_t)zacep + (abstract_size * i++), - EVERYONE_DENY_MASK, DENY, -1, ACE_EVERYONE); - zfs_set_ace(aclp, (caddr_t)zacep + (abstract_size * i++), - EVERYONE_ALLOW_MASK, ALLOW, -1, ACE_EVERYONE); - aclp->z_acl_count += 6; - } - - zfs_acl_fixup_canonical_six(aclp, mode); + zfs_set_ace(aclp, zacep, access_mask, type, who, iflags); + ace_size = aclp->z_ops.ace_size(acep); + zacep = (void *)((uintptr_t)zacep + ace_size); + new_count++; + new_bytes += ace_size; + } + zfs_set_ace(aclp, zacep, owner, 0, -1, ACE_OWNER); + zacep = (void *)((uintptr_t)zacep + abstract_size); + zfs_set_ace(aclp, zacep, group, 0, -1, OWNING_GROUP); + zacep = (void *)((uintptr_t)zacep + abstract_size); + zfs_set_ace(aclp, zacep, everyone, 0, -1, ACE_EVERYONE); + + new_count += 3; + new_bytes += abstract_size * 3; + zfs_acl_release_nodes(aclp); + aclp->z_acl_count = new_count; + aclp->z_acl_bytes = new_bytes; + newnode->z_ace_count = new_count; + newnode->z_size = new_bytes; + list_insert_tail(&aclp->z_acl, newnode); } int zfs_acl_chmod_setattr(znode_t *zp, zfs_acl_t **aclp, uint64_t mode) { - int error; - mutex_enter(&zp->z_lock); mutex_enter(&zp->z_acl_lock); - *aclp = NULL; - error = zfs_acl_node_read(zp, aclp, B_TRUE); - if (error == 0) { - (*aclp)->z_hints = zp->z_phys->zp_flags & V4_ACL_WIDE_FLAGS; - zfs_acl_chmod(zp->z_zfsvfs, zp->z_phys->zp_uid, mode, *aclp); - } + *aclp = zfs_acl_alloc(zfs_acl_version_zp(zp)); + (*aclp)->z_hints = zp->z_pflags & V4_ACL_WIDE_FLAGS; + zfs_acl_chmod(zp->z_zfsvfs, mode, *aclp); mutex_exit(&zp->z_acl_lock); mutex_exit(&zp->z_lock); - return (error); + ASSERT(*aclp); + return (0); } /* @@ -1693,8 +1535,8 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, vtype_t vtype, zfs_acl_t *paclp, uint64_t mode, boolean_t *need_chmod) { void *pacep; - void *acep, *acep2; - zfs_acl_node_t *aclnode, *aclnode2; + void *acep; + zfs_acl_node_t *aclnode; zfs_acl_t *aclp = NULL; uint64_t who; uint32_t access_mask; @@ -1716,7 +1558,7 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, vtype_t vtype, zfs_acl_t *paclp, *need_chmod = B_TRUE; pacep = NULL; aclp = zfs_acl_alloc(paclp->z_version); - if (zfsvfs->z_acl_inherit == ZFS_ACL_DISCARD) + if (zfsvfs->z_acl_inherit == ZFS_ACL_DISCARD || vtype == VLNK) return (aclp); while (pacep = zfs_acl_next_ace(paclp, pacep, &who, &access_mask, &iflags, &type)) { @@ -1745,11 +1587,11 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, vtype_t vtype, zfs_acl_t *paclp, OWNING_GROUP)) && (vreg || (vdir && (iflags & ACE_DIRECTORY_INHERIT_ACE)))) { *need_chmod = B_FALSE; + } - if (!vdir && passthrough_x && - ((mode & (S_IXUSR | S_IXGRP | S_IXOTH)) == 0)) { - access_mask &= ~ACE_EXECUTE; - } + if (!vdir && passthrough_x && + ((mode & (S_IXUSR | S_IXGRP | S_IXOTH)) == 0)) { + access_mask &= ~ACE_EXECUTE; } aclnode = zfs_acl_node_alloc(ace_size); @@ -1767,6 +1609,7 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, vtype_t vtype, zfs_acl_t *paclp, &data2)) == data1sz); bcopy(data1, data2, data2sz); } + aclp->z_acl_count++; aclnode->z_ace_count++; aclp->z_acl_bytes += aclnode->z_size; @@ -1785,38 +1628,17 @@ zfs_acl_inherit(zfsvfs_t *zfsvfs, vtype_t vtype, zfs_acl_t *paclp, ASSERT(vdir); - newflags = aclp->z_ops.ace_flags_get(acep); + /* + * If only FILE_INHERIT is set then turn on + * inherit_only + */ if ((iflags & (ACE_FILE_INHERIT_ACE | - ACE_DIRECTORY_INHERIT_ACE)) != - ACE_FILE_INHERIT_ACE) { - aclnode2 = zfs_acl_node_alloc(ace_size); - list_insert_tail(&aclp->z_acl, aclnode2); - acep2 = aclnode2->z_acldata; - zfs_set_ace(aclp, acep2, - access_mask, type, who, - iflags|ACE_INHERITED_ACE); + ACE_DIRECTORY_INHERIT_ACE)) == ACE_FILE_INHERIT_ACE) { newflags |= ACE_INHERIT_ONLY_ACE; - aclp->z_ops.ace_flags_set(acep, newflags); - newflags &= ~ALL_INHERIT; - aclp->z_ops.ace_flags_set(acep2, + aclp->z_ops.ace_flags_set(acep, newflags|ACE_INHERITED_ACE); - - /* - * Copy special opaque data if any - */ - if ((data1sz = aclp->z_ops.ace_data(acep, - &data1)) != 0) { - VERIFY((data2sz = - aclp->z_ops.ace_data(acep2, - &data2)) == data1sz); - bcopy(data1, data2, data1sz); - } - aclp->z_acl_count++; - aclnode2->z_ace_count++; - aclp->z_acl_bytes += aclnode->z_size; - zfs_restricted_update(zfsvfs, aclp, acep2); } else { - newflags |= ACE_INHERIT_ONLY_ACE; + newflags &= ~ACE_INHERIT_ONLY_ACE; aclp->z_ops.ace_flags_set(acep, newflags|ACE_INHERITED_ACE); } @@ -1837,6 +1659,8 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr, zfs_acl_t *paclp; gid_t gid; boolean_t need_chmod = B_TRUE; + boolean_t inherited = B_FALSE; + uint64_t parentgid; bzero(acl_ids, sizeof (zfs_acl_ids_t)); acl_ids->z_mode = MAKEIMODE(vap->va_type, vap->va_mode); @@ -1845,11 +1669,10 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr, if ((error = zfs_vsec_2_aclp(zfsvfs, vap->va_type, vsecp, cr, &acl_ids->z_fuidp, &acl_ids->z_aclp)) != 0) return (error); - /* * Determine uid and gid. */ - if ((flag & (IS_ROOT_NODE | IS_REPLAY)) || + if ((flag & IS_ROOT_NODE) || zfsvfs->z_replay || ((flag & IS_XATTR) && (vap->va_type == VDIR))) { acl_ids->z_fuid = zfs_fuid_create(zfsvfs, (uint64_t)vap->va_uid, cr, @@ -1859,6 +1682,12 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr, ZFS_GROUP, &acl_ids->z_fuidp); gid = vap->va_gid; } else { + if (IS_EPHEMERAL(dzp->z_gid)) + VERIFY(0 == sa_lookup(dzp->z_sa_hdl, SA_ZPL_GID(zfsvfs), + &parentgid, sizeof (parentgid))); + else + parentgid = (uint64_t)dzp->z_gid; + acl_ids->z_fuid = zfs_fuid_create_cred(zfsvfs, ZFS_OWNER, cr, &acl_ids->z_fuidp); acl_ids->z_fgid = 0; @@ -1867,16 +1696,31 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr, (uint64_t)vap->va_gid, cr, ZFS_GROUP, &acl_ids->z_fuidp); gid = vap->va_gid; - if (acl_ids->z_fgid != dzp->z_phys->zp_gid && + if (acl_ids->z_fgid != parentgid && !groupmember(vap->va_gid, cr) && secpolicy_vnode_create_gid(cr) != 0) acl_ids->z_fgid = 0; } if (acl_ids->z_fgid == 0) { - if (dzp->z_phys->zp_mode & S_ISGID) { - acl_ids->z_fgid = dzp->z_phys->zp_gid; + if (dzp->z_mode & S_ISGID) { + char *domain; + uint32_t rid; + + acl_ids->z_fgid = parentgid; gid = zfs_fuid_map_id(zfsvfs, acl_ids->z_fgid, cr, ZFS_GROUP); + + if (zfsvfs->z_use_fuids && + IS_EPHEMERAL(acl_ids->z_fgid)) { + domain = zfs_fuid_idx_domain( + &zfsvfs->z_fuid_idx, + FUID_INDEX(acl_ids->z_fgid)); + rid = FUID_RID(acl_ids->z_fgid); + zfs_fuid_node_add(&acl_ids->z_fuidp, + domain, rid, + FUID_INDEX(acl_ids->z_fgid), + acl_ids->z_fgid, ZFS_GROUP); + } } else { acl_ids->z_fgid = zfs_fuid_create_cred(zfsvfs, ZFS_GROUP, cr, &acl_ids->z_fuidp); @@ -1892,7 +1736,7 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr, * file's new group, clear the file's set-GID bit. */ - if (!(flag & IS_ROOT_NODE) && (dzp->z_phys->zp_mode & S_ISGID) && + if (!(flag & IS_ROOT_NODE) && (dzp->z_mode & S_ISGID) && (vap->va_type == VDIR)) { acl_ids->z_mode |= S_ISGID; } else { @@ -1904,26 +1748,35 @@ zfs_acl_ids_create(znode_t *dzp, int flag, vattr_t *vap, cred_t *cr, if (acl_ids->z_aclp == NULL) { mutex_enter(&dzp->z_lock); if (!(flag & IS_ROOT_NODE) && (ZTOV(dzp)->v_type == VDIR && - (dzp->z_phys->zp_flags & ZFS_INHERIT_ACE)) && - !(dzp->z_phys->zp_flags & ZFS_XATTR)) { + (dzp->z_pflags & ZFS_INHERIT_ACE)) && + !(dzp->z_pflags & ZFS_XATTR)) { mutex_enter(&dzp->z_acl_lock); VERIFY(0 == zfs_acl_node_read(dzp, &paclp, B_FALSE)); - mutex_exit(&dzp->z_acl_lock); acl_ids->z_aclp = zfs_acl_inherit(zfsvfs, vap->va_type, paclp, acl_ids->z_mode, &need_chmod); + mutex_exit(&dzp->z_acl_lock); + inherited = B_TRUE; } else { acl_ids->z_aclp = zfs_acl_alloc(zfs_acl_version_zp(dzp)); + acl_ids->z_aclp->z_hints |= ZFS_ACL_TRIVIAL; } mutex_exit(&dzp->z_lock); if (need_chmod) { - acl_ids->z_aclp->z_hints = (vap->va_type == VDIR) ? + acl_ids->z_aclp->z_hints |= (vap->va_type == VDIR) ? ZFS_ACL_AUTO_INHERIT : 0; - zfs_acl_chmod(zfsvfs, acl_ids->z_fuid, - acl_ids->z_mode, acl_ids->z_aclp); + zfs_acl_chmod(zfsvfs, acl_ids->z_mode, acl_ids->z_aclp); } } + if (inherited || vsecp) { + acl_ids->z_mode = zfs_mode_compute(acl_ids->z_mode, + acl_ids->z_aclp, &acl_ids->z_aclp->z_hints, + acl_ids->z_fuid, acl_ids->z_fgid); + if (ace_trivial_common(acl_ids->z_aclp, 0, zfs_ace_walk) == 0) + acl_ids->z_aclp->z_hints |= ZFS_ACL_TRIVIAL; + } + return (0); } @@ -1944,8 +1797,8 @@ zfs_acl_ids_free(zfs_acl_ids_t *acl_ids) boolean_t zfs_acl_ids_overquota(zfsvfs_t *zfsvfs, zfs_acl_ids_t *acl_ids) { - return (zfs_usergroup_overquota(zfsvfs, B_FALSE, acl_ids->z_fuid) || - zfs_usergroup_overquota(zfsvfs, B_TRUE, acl_ids->z_fgid)); + return (zfs_fuid_overquota(zfsvfs, B_FALSE, acl_ids->z_fuid) || + zfs_fuid_overquota(zfsvfs, B_TRUE, acl_ids->z_fgid)); } /* @@ -1963,12 +1816,12 @@ zfs_getacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr) mask = vsecp->vsa_mask & (VSA_ACE | VSA_ACECNT | VSA_ACE_ACLFLAGS | VSA_ACE_ALLTYPES); - if (error = zfs_zaccess(zp, ACE_READ_ACL, 0, skipaclchk, cr)) - return (error); - if (mask == 0) return (ENOSYS); + if (error = zfs_zaccess(zp, ACE_READ_ACL, 0, skipaclchk, cr)) + return (error); + mutex_enter(&zp->z_acl_lock); error = zfs_acl_node_read(zp, &aclp, B_FALSE); @@ -1980,8 +1833,7 @@ zfs_getacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr) /* * Scan ACL to determine number of ACEs */ - if ((zp->z_phys->zp_flags & ZFS_ACL_OBJ_ACE) && - !(mask & VSA_ACE_ALLTYPES)) { + if ((zp->z_pflags & ZFS_ACL_OBJ_ACE) && !(mask & VSA_ACE_ALLTYPES)) { void *zacep = NULL; uint64_t who; uint32_t access_mask; @@ -2002,7 +1854,7 @@ zfs_getacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr) } vsecp->vsa_aclcnt = count; } else - count = aclp->z_acl_count; + count = (int)aclp->z_acl_count; if (mask & VSA_ACECNT) { vsecp->vsa_aclcnt = count; @@ -2011,8 +1863,6 @@ zfs_getacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr) if (mask & VSA_ACE) { size_t aclsz; - zfs_acl_node_t *aclnode = list_head(&aclp->z_acl); - aclsz = count * sizeof (ace_t) + sizeof (ace_object_t) * largeace; @@ -2023,17 +1873,26 @@ zfs_getacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr) zfs_copy_fuid_2_ace(zp->z_zfsvfs, aclp, cr, vsecp->vsa_aclentp, !(mask & VSA_ACE_ALLTYPES)); else { - bcopy(aclnode->z_acldata, vsecp->vsa_aclentp, - count * sizeof (ace_t)); + zfs_acl_node_t *aclnode; + void *start = vsecp->vsa_aclentp; + + for (aclnode = list_head(&aclp->z_acl); aclnode; + aclnode = list_next(&aclp->z_acl, aclnode)) { + bcopy(aclnode->z_acldata, start, + aclnode->z_size); + start = (caddr_t)start + aclnode->z_size; + } + ASSERT((caddr_t)start - (caddr_t)vsecp->vsa_aclentp == + aclp->z_acl_bytes); } } if (mask & VSA_ACE_ACLFLAGS) { vsecp->vsa_aclflags = 0; - if (zp->z_phys->zp_flags & ZFS_ACL_DEFAULTED) + if (zp->z_pflags & ZFS_ACL_DEFAULTED) vsecp->vsa_aclflags |= ACL_DEFAULTED; - if (zp->z_phys->zp_flags & ZFS_ACL_PROTECTED) + if (zp->z_pflags & ZFS_ACL_PROTECTED) vsecp->vsa_aclflags |= ACL_PROTECTED; - if (zp->z_phys->zp_flags & ZFS_ACL_AUTO_INHERIT) + if (zp->z_pflags & ZFS_ACL_AUTO_INHERIT) vsecp->vsa_aclflags |= ACL_AUTO_INHERIT; } @@ -2115,7 +1974,7 @@ zfs_setacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr) if (mask == 0) return (ENOSYS); - if (zp->z_phys->zp_flags & ZFS_IMMUTABLE) + if (zp->z_pflags & ZFS_IMMUTABLE) return (EPERM); if (error = zfs_zaccess(zp, ACE_WRITE_ACL, 0, skipaclchk, cr)) @@ -2131,37 +1990,40 @@ zfs_setacl(znode_t *zp, vsecattr_t *vsecp, boolean_t skipaclchk, cred_t *cr) * existing flags. */ if (!(vsecp->vsa_mask & VSA_ACE_ACLFLAGS)) { - aclp->z_hints |= (zp->z_phys->zp_flags & V4_ACL_WIDE_FLAGS); + aclp->z_hints |= + (zp->z_pflags & V4_ACL_WIDE_FLAGS); } top: mutex_enter(&zp->z_lock); mutex_enter(&zp->z_acl_lock); tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); - - if (zp->z_phys->zp_acl.z_acl_extern_obj) { - /* Are we upgrading ACL? */ - if (zfsvfs->z_version <= ZPL_VERSION_FUID && - zp->z_phys->zp_acl.z_acl_version == - ZFS_ACL_VERSION_INITIAL) { - dmu_tx_hold_free(tx, - zp->z_phys->zp_acl.z_acl_extern_obj, - 0, DMU_OBJECT_END); - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, - 0, aclp->z_acl_bytes); + + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); + + fuid_dirtied = zfsvfs->z_fuid_dirty; + if (fuid_dirtied) + zfs_fuid_txhold(zfsvfs, tx); + + /* + * If old version and ACL won't fit in bonus and we aren't + * upgrading then take out necessary DMU holds + */ + + if (ZFS_EXTERNAL_ACL(zp)) { + if (zfsvfs->z_version <= ZPL_VERSION_SA && + ZNODE_ACL_VERSION(zp) <= ZFS_ACL_VERSION_INITIAL) { + dmu_tx_hold_free(tx, ZFS_EXTERNAL_ACL(zp), 0, + DMU_OBJECT_END); } else { - dmu_tx_hold_write(tx, - zp->z_phys->zp_acl.z_acl_extern_obj, + dmu_tx_hold_write(tx, ZFS_EXTERNAL_ACL(zp), 0, aclp->z_acl_bytes); } - } else if (aclp->z_acl_bytes > ZFS_ACE_SPACE) { + } else if (!zp->z_is_sa && aclp->z_acl_bytes > ZFS_ACE_SPACE) { dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, aclp->z_acl_bytes); } - fuid_dirtied = zfsvfs->z_fuid_dirty; - if (fuid_dirtied) - zfs_fuid_txhold(zfsvfs, tx); + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { mutex_exit(&zp->z_acl_lock); @@ -2184,7 +2046,6 @@ top: if (fuid_dirtied) zfs_fuid_sync(zfsvfs, tx); - zfs_time_stamper_locked(zp, STATE_CHANGED, tx); zfs_log_acl(zilog, tx, zp, vsecp, fuidp); if (fuidp) @@ -2217,19 +2078,19 @@ zfs_zaccess_dataset_check(znode_t *zp, uint32_t v4_mode) */ if ((v4_mode & WRITE_MASK_DATA) && (((ZTOV(zp)->v_type != VDIR) && - (zp->z_phys->zp_flags & (ZFS_READONLY | ZFS_IMMUTABLE))) || + (zp->z_pflags & (ZFS_READONLY | ZFS_IMMUTABLE))) || (ZTOV(zp)->v_type == VDIR && - (zp->z_phys->zp_flags & ZFS_IMMUTABLE)))) { + (zp->z_pflags & ZFS_IMMUTABLE)))) { return (EPERM); } if ((v4_mode & (ACE_DELETE | ACE_DELETE_CHILD)) && - (zp->z_phys->zp_flags & ZFS_NOUNLINK)) { + (zp->z_pflags & ZFS_NOUNLINK)) { return (EPERM); } if (((v4_mode & (ACE_READ_DATA|ACE_EXECUTE)) && - (zp->z_phys->zp_flags & ZFS_AV_QUARANTINED))) { + (zp->z_pflags & ZFS_AV_QUARANTINED))) { return (EACCES); } @@ -2276,10 +2137,7 @@ zfs_zaccess_aces_check(znode_t *zp, uint32_t *working_mode, uint32_t deny_mask = 0; zfs_ace_hdr_t *acep = NULL; boolean_t checkit; - uid_t fowner; - uid_t gowner; - - zfs_fuid_map_ids(zp, cr, &fowner, &gowner); + uint64_t gowner; mutex_enter(&zp->z_acl_lock); @@ -2289,6 +2147,14 @@ zfs_zaccess_aces_check(znode_t *zp, uint32_t *working_mode, return (error); } + ASSERT(zp->z_acl_cached); + + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_GID(zfsvfs), + &gowner, sizeof (gowner))) != 0) { + mutex_exit(&zp->z_acl_lock); + return (error); + } + while (acep = zfs_acl_next_ace(aclp, acep, &who, &access_mask, &iflags, &type)) { uint32_t mask_matched; @@ -2310,7 +2176,7 @@ zfs_zaccess_aces_check(znode_t *zp, uint32_t *working_mode, switch (entry_type) { case ACE_OWNER: - if (uid == fowner) + if (uid == zp->z_uid) checkit = B_TRUE; break; case OWNING_GROUP: @@ -2388,18 +2254,8 @@ zfs_has_access(znode_t *zp, cred_t *cr) uint32_t have = ACE_ALL_PERMS; if (zfs_zaccess_aces_check(zp, &have, B_TRUE, cr) != 0) { - uid_t owner; - - owner = zfs_fuid_map_id(zp->z_zfsvfs, - zp->z_phys->zp_uid, cr, ZFS_OWNER); - - return ( - secpolicy_vnode_access(cr, ZTOV(zp), owner, VREAD) == 0 || - secpolicy_vnode_access(cr, ZTOV(zp), owner, VWRITE) == 0 || - secpolicy_vnode_access(cr, ZTOV(zp), owner, VEXEC) == 0 || - secpolicy_vnode_chown(cr, owner) == 0 || - secpolicy_vnode_setdac(cr, owner) == 0 || - secpolicy_vnode_remove(cr) == 0); + return (secpolicy_vnode_any_access(cr, ZTOV(zp), + zp->z_uid) == 0); } return (B_TRUE); } @@ -2457,38 +2313,33 @@ zfs_fastaccesschk_execute(znode_t *zdp, cred_t *cr) boolean_t owner = B_FALSE; boolean_t groupmbr = B_FALSE; boolean_t is_attr; - uid_t fowner; - uid_t gowner; uid_t uid = crgetuid(cr); int error; - if (zdp->z_phys->zp_flags & ZFS_AV_QUARANTINED) + if (zdp->z_pflags & ZFS_AV_QUARANTINED) return (EACCES); - is_attr = ((zdp->z_phys->zp_flags & ZFS_XATTR) && + is_attr = ((zdp->z_pflags & ZFS_XATTR) && (ZTOV(zdp)->v_type == VDIR)); if (is_attr) goto slow; + mutex_enter(&zdp->z_acl_lock); - if (zdp->z_phys->zp_flags & ZFS_NO_EXECS_DENIED) { + if (zdp->z_pflags & ZFS_NO_EXECS_DENIED) { mutex_exit(&zdp->z_acl_lock); return (0); } - if (FUID_INDEX(zdp->z_phys->zp_uid) != 0 || - FUID_INDEX(zdp->z_phys->zp_gid) != 0) { + if (IS_EPHEMERAL(zdp->z_uid) != 0 || IS_EPHEMERAL(zdp->z_gid) != 0) { mutex_exit(&zdp->z_acl_lock); goto slow; } - fowner = (uid_t)zdp->z_phys->zp_uid; - gowner = (uid_t)zdp->z_phys->zp_gid; - - if (uid == fowner) { + if (uid == zdp->z_uid) { owner = B_TRUE; - if (zdp->z_phys->zp_mode & S_IXUSR) { + if (zdp->z_mode & S_IXUSR) { mutex_exit(&zdp->z_acl_lock); return (0); } else { @@ -2496,9 +2347,9 @@ zfs_fastaccesschk_execute(znode_t *zdp, cred_t *cr) goto slow; } } - if (groupmember(gowner, cr)) { + if (groupmember(zdp->z_gid, cr)) { groupmbr = B_TRUE; - if (zdp->z_phys->zp_mode & S_IXGRP) { + if (zdp->z_mode & S_IXGRP) { mutex_exit(&zdp->z_acl_lock); return (0); } else { @@ -2507,7 +2358,7 @@ zfs_fastaccesschk_execute(znode_t *zdp, cred_t *cr) } } if (!owner && !groupmbr) { - if (zdp->z_phys->zp_mode & S_IXOTH) { + if (zdp->z_mode & S_IXOTH) { mutex_exit(&zdp->z_acl_lock); return (0); } @@ -2524,8 +2375,9 @@ slow: } /* - * Determine whether Access should be granted/denied, invoking least - * priv subsytem when a deny is determined. + * Determine whether Access should be granted/denied. + * The least priv subsytem is always consulted as a basic privilege + * can define any form of access. */ int zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr) @@ -2533,20 +2385,26 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr) uint32_t working_mode; int error; int is_attr; - zfsvfs_t *zfsvfs = zp->z_zfsvfs; boolean_t check_privs; znode_t *xzp; znode_t *check_zp = zp; + mode_t needed_bits; - is_attr = ((zp->z_phys->zp_flags & ZFS_XATTR) && - (ZTOV(zp)->v_type == VDIR)); + is_attr = ((zp->z_pflags & ZFS_XATTR) && (ZTOV(zp)->v_type == VDIR)); /* * If attribute then validate against base file */ if (is_attr) { + uint64_t parent; + + if ((error = sa_lookup(zp->z_sa_hdl, + SA_ZPL_PARENT(zp->z_zfsvfs), &parent, + sizeof (parent))) != 0) + return (error); + if ((error = zfs_zget(zp->z_zfsvfs, - zp->z_phys->zp_parent, &xzp)) != 0) { + parent, &xzp)) != 0) { return (error); } @@ -2567,11 +2425,35 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr) } } + /* + * Map the bits required to the standard vnode flags VREAD|VWRITE|VEXEC + * in needed_bits. Map the bits mapped by working_mode (currently + * missing) in missing_bits. + * Call secpolicy_vnode_access2() with (needed_bits & ~checkmode), + * needed_bits. + */ + needed_bits = 0; + + working_mode = mode; + if ((working_mode & (ACE_READ_ACL|ACE_READ_ATTRIBUTES)) && + zp->z_uid == crgetuid(cr)) + working_mode &= ~(ACE_READ_ACL|ACE_READ_ATTRIBUTES); + + if (working_mode & (ACE_READ_DATA|ACE_READ_NAMED_ATTRS| + ACE_READ_ACL|ACE_READ_ATTRIBUTES|ACE_SYNCHRONIZE)) + needed_bits |= VREAD; + if (working_mode & (ACE_WRITE_DATA|ACE_WRITE_NAMED_ATTRS| + ACE_APPEND_DATA|ACE_WRITE_ATTRIBUTES|ACE_SYNCHRONIZE)) + needed_bits |= VWRITE; + if (working_mode & ACE_EXECUTE) + needed_bits |= VEXEC; + if ((error = zfs_zaccess_common(check_zp, mode, &working_mode, &check_privs, skipaclchk, cr)) == 0) { if (is_attr) VN_RELE(ZTOV(xzp)); - return (0); + return (secpolicy_vnode_access2(cr, ZTOV(zp), zp->z_uid, + needed_bits, needed_bits)); } if (error && !check_privs) { @@ -2585,12 +2467,8 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr) } if (error && check_privs) { - uid_t owner; mode_t checkmode = 0; - owner = zfs_fuid_map_id(zfsvfs, check_zp->z_phys->zp_uid, cr, - ZFS_OWNER); - /* * First check for implicit owner permission on * read_acl/read_attributes @@ -2600,7 +2478,7 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr) ASSERT(working_mode != 0); if ((working_mode & (ACE_READ_ACL|ACE_READ_ATTRIBUTES) && - owner == crgetuid(cr))) + zp->z_uid == crgetuid(cr))) working_mode &= ~(ACE_READ_ACL|ACE_READ_ATTRIBUTES); if (working_mode & (ACE_READ_DATA|ACE_READ_NAMED_ATTRS| @@ -2612,21 +2490,20 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr) if (working_mode & ACE_EXECUTE) checkmode |= VEXEC; - if (checkmode) - error = secpolicy_vnode_access(cr, ZTOV(check_zp), - owner, checkmode); + error = secpolicy_vnode_access2(cr, ZTOV(check_zp), zp->z_uid, + needed_bits & ~checkmode, needed_bits); if (error == 0 && (working_mode & ACE_WRITE_OWNER)) - error = secpolicy_vnode_chown(cr, owner); + error = secpolicy_vnode_chown(cr, zp->z_uid); if (error == 0 && (working_mode & ACE_WRITE_ACL)) - error = secpolicy_vnode_setdac(cr, owner); + error = secpolicy_vnode_setdac(cr, zp->z_uid); if (error == 0 && (working_mode & (ACE_DELETE|ACE_DELETE_CHILD))) error = secpolicy_vnode_remove(cr); if (error == 0 && (working_mode & ACE_SYNCHRONIZE)) { - error = secpolicy_vnode_chown(cr, owner); + error = secpolicy_vnode_chown(cr, zp->z_uid); } if (error == 0) { /* @@ -2637,8 +2514,12 @@ zfs_zaccess(znode_t *zp, int mode, int flags, boolean_t skipaclchk, cred_t *cr) error = EACCES; } } + } else if (error == 0) { + error = secpolicy_vnode_access2(cr, ZTOV(zp), zp->z_uid, + needed_bits, needed_bits); } + if (is_attr) VN_RELE(ZTOV(xzp)); @@ -2668,15 +2549,12 @@ zfs_zaccess_unix(znode_t *zp, mode_t mode, cred_t *cr) static int zfs_delete_final_check(znode_t *zp, znode_t *dzp, - mode_t missing_perms, cred_t *cr) + mode_t available_perms, cred_t *cr) { int error; - uid_t downer; - zfsvfs_t *zfsvfs = zp->z_zfsvfs; - - downer = zfs_fuid_map_id(zfsvfs, dzp->z_phys->zp_uid, cr, ZFS_OWNER); - error = secpolicy_vnode_access(cr, ZTOV(dzp), downer, missing_perms); + error = secpolicy_vnode_access2(cr, ZTOV(dzp), + dzp->z_uid, available_perms, VWRITE|VEXEC); if (error == 0) error = zfs_sticky_remove_access(dzp, zp, cr); @@ -2725,7 +2603,7 @@ zfs_zaccess_delete(znode_t *dzp, znode_t *zp, cred_t *cr) uint32_t dzp_working_mode = 0; uint32_t zp_working_mode = 0; int dzp_error, zp_error; - mode_t missing_perms; + mode_t available_perms; boolean_t dzpcheck_privs = B_TRUE; boolean_t zpcheck_privs = B_TRUE; @@ -2743,7 +2621,7 @@ zfs_zaccess_delete(znode_t *dzp, znode_t *zp, cred_t *cr) * to determine what was found. */ - if (zp->z_phys->zp_flags & (ZFS_IMMUTABLE | ZFS_NOUNLINK)) + if (zp->z_pflags & (ZFS_IMMUTABLE | ZFS_NOUNLINK)) return (EPERM); /* @@ -2786,23 +2664,20 @@ zfs_zaccess_delete(znode_t *dzp, znode_t *zp, cred_t *cr) * only need to see if we have write/execute on directory. */ - if ((dzp_error = zfs_zaccess_common(dzp, ACE_EXECUTE|ACE_WRITE_DATA, - &dzp_working_mode, &dzpcheck_privs, B_FALSE, cr)) == 0) - return (zfs_sticky_remove_access(dzp, zp, cr)); + dzp_error = zfs_zaccess_common(dzp, ACE_EXECUTE|ACE_WRITE_DATA, + &dzp_working_mode, &dzpcheck_privs, B_FALSE, cr); - if (!dzpcheck_privs) + if (dzp_error != 0 && !dzpcheck_privs) return (dzp_error); /* * Fourth row */ - missing_perms = (dzp_working_mode & ACE_WRITE_DATA) ? VWRITE : 0; - missing_perms |= (dzp_working_mode & ACE_EXECUTE) ? VEXEC : 0; - - ASSERT(missing_perms); + available_perms = (dzp_working_mode & ACE_WRITE_DATA) ? 0 : VWRITE; + available_perms |= (dzp_working_mode & ACE_EXECUTE) ? 0 : VEXEC; - return (zfs_delete_final_check(zp, dzp, missing_perms, cr)); + return (zfs_delete_final_check(zp, dzp, available_perms, cr)); } @@ -2813,7 +2688,7 @@ zfs_zaccess_rename(znode_t *sdzp, znode_t *szp, znode_t *tdzp, int add_perm; int error; - if (szp->z_phys->zp_flags & ZFS_AV_QUARANTINED) + if (szp->z_pflags & ZFS_AV_QUARANTINED) return (EACCES); add_perm = (ZTOV(szp)->v_type == VDIR) ? diff --git a/module/zfs/zfs_byteswap.c b/module/zfs/zfs_byteswap.c index cd36696f9..acf632bdb 100644 --- a/module/zfs/zfs_byteswap.c +++ b/module/zfs/zfs_byteswap.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -27,6 +27,7 @@ #include <sys/vfs.h> #include <sys/fs/zfs.h> #include <sys/zfs_znode.h> +#include <sys/zfs_sa.h> #include <sys/zfs_acl.h> void diff --git a/module/zfs/zfs_ctldir.c b/module/zfs/zfs_ctldir.c index c6c719871..362de4dd1 100644 --- a/module/zfs/zfs_ctldir.c +++ b/module/zfs/zfs_ctldir.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -186,6 +185,17 @@ zfsctl_fini(void) zfsctl_ops_shares_dir = NULL; } +boolean_t +zfsctl_is_node(vnode_t *vp) +{ + return (vn_matchops(vp, zfsctl_ops_root) || + vn_matchops(vp, zfsctl_ops_snapdir) || + vn_matchops(vp, zfsctl_ops_snapshot) || + vn_matchops(vp, zfsctl_ops_shares) || + vn_matchops(vp, zfsctl_ops_shares_dir)); + +} + /* * Return the inode number associated with the 'snapshot' or * 'shares' directory. @@ -215,6 +225,7 @@ zfsctl_create(zfsvfs_t *zfsvfs) { vnode_t *vp, *rvp; zfsctl_node_t *zcp; + uint64_t crtime[2]; ASSERT(zfsvfs->z_ctldir == NULL); @@ -225,7 +236,9 @@ zfsctl_create(zfsvfs_t *zfsvfs) zcp->zc_id = ZFSCTL_INO_ROOT; VERIFY(VFS_ROOT(zfsvfs->z_vfs, &rvp) == 0); - ZFS_TIME_DECODE(&zcp->zc_cmtime, VTOZ(rvp)->z_phys->zp_crtime); + VERIFY(0 == sa_lookup(VTOZ(rvp)->z_sa_hdl, SA_ZPL_CRTIME(zfsvfs), + &crtime, sizeof (crtime))); + ZFS_TIME_DECODE(&zcp->zc_cmtime, crtime); VN_RELE(rvp); /* @@ -311,14 +324,13 @@ zfsctl_common_access(vnode_t *vp, int mode, int flags, cred_t *cr, static void zfsctl_common_getattr(vnode_t *vp, vattr_t *vap) { - zfsctl_node_t *zcp = vp->v_data; timestruc_t now; vap->va_uid = 0; vap->va_gid = 0; vap->va_rdev = 0; /* - * We are a purly virtual object, so we have no + * We are a purely virtual object, so we have no * blocksize or allocated blocks. */ vap->va_blksize = 0; @@ -333,7 +345,6 @@ zfsctl_common_getattr(vnode_t *vp, vattr_t *vap) */ gethrestime(&now); vap->va_atime = now; - vap->va_mtime = vap->va_ctime = zcp->zc_cmtime; } /*ARGSUSED*/ @@ -416,10 +427,12 @@ zfsctl_root_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, caller_context_t *ct) { zfsvfs_t *zfsvfs = vp->v_vfsp->vfs_data; + zfsctl_node_t *zcp = vp->v_data; ZFS_ENTER(zfsvfs); vap->va_nodeid = ZFSCTL_INO_ROOT; vap->va_nlink = vap->va_size = NROOT_ENTRIES; + vap->va_mtime = vap->va_ctime = zcp->zc_cmtime; zfsctl_common_getattr(vp, vap); ZFS_EXIT(zfsvfs); @@ -853,8 +866,7 @@ zfsctl_snapdir_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp, */ return (err == EILSEQ ? ENOENT : err); } - if (dmu_objset_open(snapname, DMU_OST_ZFS, - DS_MODE_USER | DS_MODE_READONLY, &snap) != 0) { + if (dmu_objset_hold(snapname, FTAG, &snap) != 0) { mutex_exit(&sdp->sd_lock); ZFS_EXIT(zfsvfs); return (ENOENT); @@ -866,7 +878,7 @@ zfsctl_snapdir_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp, *vpp = sep->se_root = zfsctl_snapshot_mknode(dvp, dmu_objset_id(snap)); avl_insert(&sdp->sd_snaps, sep, where); - dmu_objset_close(snap); + dmu_objset_rele(snap, FTAG); domount: mountpoint_len = strlen(refstr_value(dvp->v_vfsp->vfs_mntpt)) + strlen("/.zfs/snapshot/") + strlen(nm) + 1; @@ -1102,6 +1114,7 @@ zfsctl_snapdir_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, zfsctl_common_getattr(vp, vap); vap->va_nodeid = gfs_file_inode(vp); vap->va_nlink = vap->va_size = avl_numnodes(&sdp->sd_snaps) + 2; + vap->va_ctime = vap->va_mtime = dmu_objset_snap_cmtime(zfsvfs->z_os); ZFS_EXIT(zfsvfs); return (0); diff --git a/module/zfs/zfs_debug.c b/module/zfs/zfs_debug.c new file mode 100644 index 000000000..d0f411a99 --- /dev/null +++ b/module/zfs/zfs_debug.c @@ -0,0 +1,95 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/zfs_context.h> + +list_t zfs_dbgmsgs; +int zfs_dbgmsg_size; +kmutex_t zfs_dbgmsgs_lock; +int zfs_dbgmsg_maxsize = 1<<20; /* 1MB */ + +void +zfs_dbgmsg_init(void) +{ + list_create(&zfs_dbgmsgs, sizeof (zfs_dbgmsg_t), + offsetof(zfs_dbgmsg_t, zdm_node)); + mutex_init(&zfs_dbgmsgs_lock, NULL, MUTEX_DEFAULT, NULL); +} + +void +zfs_dbgmsg_fini(void) +{ + zfs_dbgmsg_t *zdm; + + while ((zdm = list_remove_head(&zfs_dbgmsgs)) != NULL) { + int size = sizeof (zfs_dbgmsg_t) + strlen(zdm->zdm_msg); + kmem_free(zdm, size); + zfs_dbgmsg_size -= size; + } + mutex_destroy(&zfs_dbgmsgs_lock); + ASSERT3U(zfs_dbgmsg_size, ==, 0); +} + +/* + * Print these messages by running: + * echo ::zfs_dbgmsg | mdb -k + * + * Monitor these messages by running: + * dtrace -q -n 'zfs-dbgmsg{printf("%s\n", stringof(arg0))}' + */ +void +zfs_dbgmsg(const char *fmt, ...) +{ + int size; + va_list adx; + zfs_dbgmsg_t *zdm; + + va_start(adx, fmt); + size = vsnprintf(NULL, 0, fmt, adx); + va_end(adx); + + /* + * There is one byte of string in sizeof (zfs_dbgmsg_t), used + * for the terminating null. + */ + zdm = kmem_alloc(sizeof (zfs_dbgmsg_t) + size, KM_SLEEP); + zdm->zdm_timestamp = gethrestime_sec(); + + va_start(adx, fmt); + (void) vsnprintf(zdm->zdm_msg, size + 1, fmt, adx); + va_end(adx); + + DTRACE_PROBE1(zfs__dbgmsg, char *, zdm->zdm_msg); + + mutex_enter(&zfs_dbgmsgs_lock); + list_insert_tail(&zfs_dbgmsgs, zdm); + zfs_dbgmsg_size += sizeof (zfs_dbgmsg_t) + size; + while (zfs_dbgmsg_size > zfs_dbgmsg_maxsize) { + zdm = list_remove_head(&zfs_dbgmsgs); + size = sizeof (zfs_dbgmsg_t) + strlen(zdm->zdm_msg); + kmem_free(zdm, size); + zfs_dbgmsg_size -= size; + } + mutex_exit(&zfs_dbgmsgs_lock); +} diff --git a/module/zfs/zfs_dir.c b/module/zfs/zfs_dir.c index b3f768328..6d6666822 100644 --- a/module/zfs/zfs_dir.c +++ b/module/zfs/zfs_dir.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/types.h> @@ -52,6 +51,8 @@ #include <sys/atomic.h> #include <sys/zfs_ctldir.h> #include <sys/zfs_fuid.h> +#include <sys/sa.h> +#include <sys/zfs_sa.h> #include <sys/dnlc.h> #include <sys/extdirent.h> @@ -114,6 +115,8 @@ zfs_match_find(zfsvfs_t *zfsvfs, znode_t *dzp, char *name, boolean_t exact, * ZCIEXACT: On a purely case-insensitive file system, * this lookup should be case-sensitive. * ZRENAMING: we are locking for renaming, force narrow locks + * ZHAVELOCK: Don't grab the z_name_lock for this call. The + * current thread already holds it. * * Output arguments: * zpp - pointer to the znode for the entry (NULL if there isn't one) @@ -208,13 +211,20 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp, /* * Wait until there are no locks on this name. + * + * Don't grab the the lock if it is already held. However, cannot + * have both ZSHARED and ZHAVELOCK together. */ - rw_enter(&dzp->z_name_lock, RW_READER); + ASSERT(!(flag & ZSHARED) || !(flag & ZHAVELOCK)); + if (!(flag & ZHAVELOCK)) + rw_enter(&dzp->z_name_lock, RW_READER); + mutex_enter(&dzp->z_lock); for (;;) { if (dzp->z_unlinked) { mutex_exit(&dzp->z_lock); - rw_exit(&dzp->z_name_lock); + if (!(flag & ZHAVELOCK)) + rw_exit(&dzp->z_name_lock); return (ENOENT); } for (dl = dzp->z_dirlocks; dl != NULL; dl = dl->dl_next) { @@ -224,7 +234,8 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp, } if (error != 0) { mutex_exit(&dzp->z_lock); - rw_exit(&dzp->z_name_lock); + if (!(flag & ZHAVELOCK)) + rw_exit(&dzp->z_name_lock); return (ENOENT); } if (dl == NULL) { @@ -235,6 +246,7 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp, cv_init(&dl->dl_cv, NULL, CV_DEFAULT, NULL); dl->dl_name = name; dl->dl_sharecnt = 0; + dl->dl_namelock = 0; dl->dl_namesize = 0; dl->dl_dzp = dzp; dl->dl_next = dzp->z_dirlocks; @@ -246,6 +258,12 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp, cv_wait(&dl->dl_cv, &dzp->z_lock); } + /* + * If the z_name_lock was NOT held for this dirlock record it. + */ + if (flag & ZHAVELOCK) + dl->dl_namelock = 1; + if ((flag & ZSHARED) && ++dl->dl_sharecnt > 1 && dl->dl_namesize == 0) { /* * We're the second shared reference to dl. Make a copy of @@ -269,8 +287,10 @@ zfs_dirent_lock(zfs_dirlock_t **dlpp, znode_t *dzp, char *name, znode_t **zpp, * See if there's an object by this name; if so, put a hold on it. */ if (flag & ZXATTR) { - zoid = dzp->z_phys->zp_xattr; - error = (zoid == 0 ? ENOENT : 0); + error = sa_lookup(dzp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), &zoid, + sizeof (zoid)); + if (error == 0) + error = (zoid == 0 ? ENOENT : 0); } else { if (update) vp = dnlc_lookup(ZTOV(dzp), name); @@ -325,7 +345,10 @@ zfs_dirent_unlock(zfs_dirlock_t *dl) zfs_dirlock_t **prev_dl, *cur_dl; mutex_enter(&dzp->z_lock); - rw_exit(&dzp->z_name_lock); + + if (!dl->dl_namelock) + rw_exit(&dzp->z_name_lock); + if (dl->dl_sharecnt > 1) { dl->dl_sharecnt--; mutex_exit(&dzp->z_lock); @@ -359,25 +382,29 @@ zfs_dirlook(znode_t *dzp, char *name, vnode_t **vpp, int flags, zfs_dirlock_t *dl; znode_t *zp; int error = 0; + uint64_t parent; if (name[0] == 0 || (name[0] == '.' && name[1] == 0)) { *vpp = ZTOV(dzp); VN_HOLD(*vpp); } else if (name[0] == '.' && name[1] == '.' && name[2] == 0) { zfsvfs_t *zfsvfs = dzp->z_zfsvfs; + /* * If we are a snapshot mounted under .zfs, return * the vp for the snapshot directory. */ - if (dzp->z_phys->zp_parent == dzp->z_id && - zfsvfs->z_parent != zfsvfs) { + if ((error = sa_lookup(dzp->z_sa_hdl, + SA_ZPL_PARENT(zfsvfs), &parent, sizeof (parent))) != 0) + return (error); + if (parent == dzp->z_id && zfsvfs->z_parent != zfsvfs) { error = zfsctl_root_lookup(zfsvfs->z_parent->z_ctldir, "snapshot", vpp, NULL, 0, NULL, kcred, NULL, NULL, NULL); return (error); } rw_enter(&dzp->z_parent_lock, RW_READER); - error = zfs_zget(zfsvfs, dzp->z_phys->zp_parent, &zp); + error = zfs_zget(zfsvfs, parent, &zp); if (error == 0) *vpp = ZTOV(zp); rw_exit(&dzp->z_parent_lock); @@ -425,7 +452,7 @@ zfs_unlinked_add(znode_t *zp, dmu_tx_t *tx) zfsvfs_t *zfsvfs = zp->z_zfsvfs; ASSERT(zp->z_unlinked); - ASSERT3U(zp->z_phys->zp_links, ==, 0); + ASSERT(zp->z_links == 0); VERIFY3U(0, ==, zap_add_int(zfsvfs->z_os, zfsvfs->z_unlinkedobj, zp->z_id, tx)); @@ -520,10 +547,12 @@ zfs_purgedir(znode_t *dzp) (ZTOV(xzp)->v_type == VLNK)); tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, dzp->z_id); + dmu_tx_hold_sa(tx, dzp->z_sa_hdl, B_FALSE); dmu_tx_hold_zap(tx, dzp->z_id, FALSE, zap.za_name); - dmu_tx_hold_bonus(tx, xzp->z_id); + dmu_tx_hold_sa(tx, xzp->z_sa_hdl, B_FALSE); dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, FALSE, NULL); + /* Is this really needed ? */ + zfs_sa_upgrade_txholds(tx, xzp); error = dmu_tx_assign(tx, TXG_WAIT); if (error) { dmu_tx_abort(tx); @@ -556,15 +585,16 @@ zfs_rmnode(znode_t *zp) znode_t *xzp = NULL; dmu_tx_t *tx; uint64_t acl_obj; + uint64_t xattr_obj; int error; + ASSERT(zp->z_links == 0); ASSERT(ZTOV(zp)->v_count == 0); - ASSERT(zp->z_phys->zp_links == 0); /* * If this is an attribute directory, purge its contents. */ - if (ZTOV(zp)->v_type == VDIR && (zp->z_phys->zp_flags & ZFS_XATTR)) { + if (ZTOV(zp)->v_type == VDIR && (zp->z_pflags & ZFS_XATTR)) { if (zfs_purgedir(zp) != 0) { /* * Not enough space to delete some xattrs. @@ -593,12 +623,14 @@ zfs_rmnode(znode_t *zp) * If the file has extended attributes, we're going to unlink * the xattr dir. */ - if (zp->z_phys->zp_xattr) { - error = zfs_zget(zfsvfs, zp->z_phys->zp_xattr, &xzp); + error = sa_lookup(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), + &xattr_obj, sizeof (xattr_obj)); + if (error == 0 && xattr_obj) { + error = zfs_zget(zfsvfs, xattr_obj, &xzp); ASSERT(error == 0); } - acl_obj = zp->z_phys->zp_acl.z_acl_extern_obj; + acl_obj = ZFS_EXTERNAL_ACL(zp); /* * Set up the final transaction. @@ -607,11 +639,13 @@ zfs_rmnode(znode_t *zp) dmu_tx_hold_free(tx, zp->z_id, 0, DMU_OBJECT_END); dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, FALSE, NULL); if (xzp) { - dmu_tx_hold_bonus(tx, xzp->z_id); dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, TRUE, NULL); + dmu_tx_hold_sa(tx, xzp->z_sa_hdl, B_FALSE); } if (acl_obj) dmu_tx_hold_free(tx, acl_obj, 0, DMU_OBJECT_END); + + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_WAIT); if (error) { /* @@ -626,10 +660,12 @@ zfs_rmnode(znode_t *zp) } if (xzp) { - dmu_buf_will_dirty(xzp->z_dbuf, tx); + ASSERT(error == 0); mutex_enter(&xzp->z_lock); xzp->z_unlinked = B_TRUE; /* mark xzp for deletion */ - xzp->z_phys->zp_links = 0; /* no more links to it */ + xzp->z_links = 0; /* no more links to it */ + VERIFY(0 == sa_update(xzp->z_sa_hdl, SA_ZPL_LINKS(zfsvfs), + &xzp->z_links, sizeof (xzp->z_links), tx)); mutex_exit(&xzp->z_lock); zfs_unlinked_add(xzp, tx); } @@ -647,11 +683,12 @@ out: } static uint64_t -zfs_dirent(znode_t *zp) +zfs_dirent(znode_t *zp, uint64_t mode) { uint64_t de = zp->z_id; + if (zp->z_zfsvfs->z_version >= ZPL_VERSION_DIRENT_TYPE) - de |= IFTODT((zp)->z_phys->zp_mode) << 60; + de |= IFTODT(mode) << 60; return (de); } @@ -662,12 +699,15 @@ int zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag) { znode_t *dzp = dl->dl_dzp; + zfsvfs_t *zfsvfs = zp->z_zfsvfs; vnode_t *vp = ZTOV(zp); uint64_t value; int zp_is_dir = (vp->v_type == VDIR); + sa_bulk_attr_t bulk[5]; + uint64_t mtime[2], ctime[2]; + int count = 0; int error; - dmu_buf_will_dirty(zp->z_dbuf, tx); mutex_enter(&zp->z_lock); if (!(flag & ZRENAMING)) { @@ -676,22 +716,47 @@ zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag) mutex_exit(&zp->z_lock); return (ENOENT); } - zp->z_phys->zp_links++; + zp->z_links++; + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL, + &zp->z_links, sizeof (zp->z_links)); + } - zp->z_phys->zp_parent = dzp->z_id; /* dzp is now zp's parent */ + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL, + &dzp->z_id, sizeof (dzp->z_id)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, sizeof (zp->z_pflags)); + + if (!(flag & ZNEW)) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, + ctime, sizeof (ctime)); + zfs_tstamp_update_setup(zp, STATE_CHANGED, mtime, + ctime, B_TRUE); + } + error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); + ASSERT(error == 0); - if (!(flag & ZNEW)) - zfs_time_stamper_locked(zp, STATE_CHANGED, tx); mutex_exit(&zp->z_lock); - dmu_buf_will_dirty(dzp->z_dbuf, tx); mutex_enter(&dzp->z_lock); - dzp->z_phys->zp_size++; /* one dirent added */ - dzp->z_phys->zp_links += zp_is_dir; /* ".." link from zp */ - zfs_time_stamper_locked(dzp, CONTENT_MODIFIED, tx); + dzp->z_size++; + dzp->z_links += zp_is_dir; + count = 0; + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL, + &dzp->z_size, sizeof (dzp->z_size)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL, + &dzp->z_links, sizeof (dzp->z_links)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, + mtime, sizeof (mtime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, + ctime, sizeof (ctime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &dzp->z_pflags, sizeof (dzp->z_pflags)); + zfs_tstamp_update_setup(dzp, CONTENT_MODIFIED, mtime, ctime, B_TRUE); + error = sa_bulk_update(dzp->z_sa_hdl, bulk, count, tx); + ASSERT(error == 0); mutex_exit(&dzp->z_lock); - value = zfs_dirent(zp); + value = zfs_dirent(zp, zp->z_mode); error = zap_add(zp->z_zfsvfs->z_os, dzp->z_id, dl->dl_name, 8, 1, &value, tx); ASSERT(error == 0); @@ -701,6 +766,30 @@ zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag) return (0); } +static int +zfs_dropname(zfs_dirlock_t *dl, znode_t *zp, znode_t *dzp, dmu_tx_t *tx, + int flag) +{ + int error; + + if (zp->z_zfsvfs->z_norm) { + if (((zp->z_zfsvfs->z_case == ZFS_CASE_INSENSITIVE) && + (flag & ZCIEXACT)) || + ((zp->z_zfsvfs->z_case == ZFS_CASE_MIXED) && + !(flag & ZCILOOK))) + error = zap_remove_norm(zp->z_zfsvfs->z_os, + dzp->z_id, dl->dl_name, MT_EXACT, tx); + else + error = zap_remove_norm(zp->z_zfsvfs->z_os, + dzp->z_id, dl->dl_name, MT_FIRST, tx); + } else { + error = zap_remove(zp->z_zfsvfs->z_os, + dzp->z_id, dl->dl_name, tx); + } + + return (error); +} + /* * Unlink zp from dl, and mark zp for deletion if this was the last link. * Can fail if zp is a mount point (EBUSY) or a non-empty directory (EEXIST). @@ -713,16 +802,18 @@ zfs_link_destroy(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag, boolean_t *unlinkedp) { znode_t *dzp = dl->dl_dzp; + zfsvfs_t *zfsvfs = dzp->z_zfsvfs; vnode_t *vp = ZTOV(zp); int zp_is_dir = (vp->v_type == VDIR); boolean_t unlinked = B_FALSE; + sa_bulk_attr_t bulk[5]; + uint64_t mtime[2], ctime[2]; + int count = 0; int error; dnlc_remove(ZTOV(dzp), dl->dl_name); if (!(flag & ZRENAMING)) { - dmu_buf_will_dirty(zp->z_dbuf, tx); - if (vn_vfswlock(vp)) /* prevent new mounts on zp */ return (EBUSY); @@ -732,52 +823,75 @@ zfs_link_destroy(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag, } mutex_enter(&zp->z_lock); - if (zp_is_dir && !zfs_dirempty(zp)) { /* dir not empty */ + + if (zp_is_dir && !zfs_dirempty(zp)) { mutex_exit(&zp->z_lock); vn_vfsunlock(vp); return (EEXIST); } - if (zp->z_phys->zp_links <= zp_is_dir) { + + /* + * If we get here, we are going to try to remove the object. + * First try removing the name from the directory; if that + * fails, return the error. + */ + error = zfs_dropname(dl, zp, dzp, tx, flag); + if (error != 0) { + mutex_exit(&zp->z_lock); + vn_vfsunlock(vp); + return (error); + } + + if (zp->z_links <= zp_is_dir) { zfs_panic_recover("zfs: link count on %s is %u, " "should be at least %u", zp->z_vnode->v_path ? zp->z_vnode->v_path : - "<unknown>", (int)zp->z_phys->zp_links, + "<unknown>", (int)zp->z_links, zp_is_dir + 1); - zp->z_phys->zp_links = zp_is_dir + 1; + zp->z_links = zp_is_dir + 1; } - if (--zp->z_phys->zp_links == zp_is_dir) { + if (--zp->z_links == zp_is_dir) { zp->z_unlinked = B_TRUE; - zp->z_phys->zp_links = 0; + zp->z_links = 0; unlinked = B_TRUE; } else { - zfs_time_stamper_locked(zp, STATE_CHANGED, tx); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), + NULL, &ctime, sizeof (ctime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), + NULL, &zp->z_pflags, sizeof (zp->z_pflags)); + zfs_tstamp_update_setup(zp, STATE_CHANGED, mtime, ctime, + B_TRUE); } + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), + NULL, &zp->z_links, sizeof (zp->z_links)); + error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); + count = 0; + ASSERT(error == 0); mutex_exit(&zp->z_lock); vn_vfsunlock(vp); + } else { + error = zfs_dropname(dl, zp, dzp, tx, flag); + if (error != 0) + return (error); } - dmu_buf_will_dirty(dzp->z_dbuf, tx); mutex_enter(&dzp->z_lock); - dzp->z_phys->zp_size--; /* one dirent removed */ - dzp->z_phys->zp_links -= zp_is_dir; /* ".." link from zp */ - zfs_time_stamper_locked(dzp, CONTENT_MODIFIED, tx); - mutex_exit(&dzp->z_lock); - - if (zp->z_zfsvfs->z_norm) { - if (((zp->z_zfsvfs->z_case == ZFS_CASE_INSENSITIVE) && - (flag & ZCIEXACT)) || - ((zp->z_zfsvfs->z_case == ZFS_CASE_MIXED) && - !(flag & ZCILOOK))) - error = zap_remove_norm(zp->z_zfsvfs->z_os, - dzp->z_id, dl->dl_name, MT_EXACT, tx); - else - error = zap_remove_norm(zp->z_zfsvfs->z_os, - dzp->z_id, dl->dl_name, MT_FIRST, tx); - } else { - error = zap_remove(zp->z_zfsvfs->z_os, - dzp->z_id, dl->dl_name, tx); - } + dzp->z_size--; /* one dirent removed */ + dzp->z_links -= zp_is_dir; /* ".." link from zp */ + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), + NULL, &dzp->z_links, sizeof (dzp->z_links)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), + NULL, &dzp->z_size, sizeof (dzp->z_size)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), + NULL, ctime, sizeof (ctime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), + NULL, mtime, sizeof (mtime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), + NULL, &dzp->z_pflags, sizeof (dzp->z_pflags)); + zfs_tstamp_update_setup(dzp, CONTENT_MODIFIED, mtime, ctime, B_TRUE); + error = sa_bulk_update(dzp->z_sa_hdl, bulk, count, tx); ASSERT(error == 0); + mutex_exit(&dzp->z_lock); if (unlinkedp != NULL) *unlinkedp = unlinked; @@ -795,7 +909,7 @@ zfs_link_destroy(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag, boolean_t zfs_dirempty(znode_t *dzp) { - return (dzp->z_phys->zp_size == 2 && dzp->z_dirlocks == 0); + return (dzp->z_size == 2 && dzp->z_dirlocks == 0); } int @@ -807,6 +921,7 @@ zfs_make_xattrdir(znode_t *zp, vattr_t *vap, vnode_t **xvpp, cred_t *cr) int error; zfs_acl_ids_t acl_ids; boolean_t fuid_dirtied; + uint64_t parent; *xvpp = NULL; @@ -821,28 +936,39 @@ zfs_make_xattrdir(znode_t *zp, vattr_t *vap, vnode_t **xvpp, cred_t *cr) return (EDQUOT); } +top: tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa_create(tx, acl_ids.z_aclp->z_acl_bytes + + ZFS_SA_BASE_ATTR_SIZE); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); fuid_dirtied = zfsvfs->z_fuid_dirty; if (fuid_dirtied) zfs_fuid_txhold(zfsvfs, tx); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { - zfs_acl_ids_free(&acl_ids); - if (error == ERESTART) + if (error == ERESTART) { dmu_tx_wait(tx); + dmu_tx_abort(tx); + goto top; + } + zfs_acl_ids_free(&acl_ids); dmu_tx_abort(tx); return (error); } - zfs_mknode(zp, vap, tx, cr, IS_XATTR, &xzp, 0, &acl_ids); + zfs_mknode(zp, vap, tx, cr, IS_XATTR, &xzp, &acl_ids); if (fuid_dirtied) zfs_fuid_sync(zfsvfs, tx); - ASSERT(xzp->z_phys->zp_parent == zp->z_id); - dmu_buf_will_dirty(zp->z_dbuf, tx); - zp->z_phys->zp_xattr = xzp->z_id; +#ifdef DEBUG + error = sa_lookup(xzp->z_sa_hdl, SA_ZPL_PARENT(zfsvfs), + &parent, sizeof (parent)); + ASSERT(error == 0 && parent == zp->z_id); +#endif + + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), &xzp->z_id, + sizeof (xzp->z_id), tx)); (void) zfs_log_create(zfsvfs->z_log, tx, TX_MKXATTR, zp, xzp, "", NULL, acl_ids.z_fuidp, vap); @@ -887,7 +1013,6 @@ top: return (0); } - ASSERT(zp->z_phys->zp_xattr == 0); if (!(flags & CREATE_XATTR_DIR)) { zfs_dirent_unlock(dl); @@ -942,20 +1067,14 @@ int zfs_sticky_remove_access(znode_t *zdp, znode_t *zp, cred_t *cr) { uid_t uid; - uid_t downer; - uid_t fowner; - zfsvfs_t *zfsvfs = zdp->z_zfsvfs; if (zdp->z_zfsvfs->z_replay) return (0); - if ((zdp->z_phys->zp_mode & S_ISVTX) == 0) + if ((zdp->z_mode & S_ISVTX) == 0) return (0); - downer = zfs_fuid_map_id(zfsvfs, zdp->z_phys->zp_uid, cr, ZFS_OWNER); - fowner = zfs_fuid_map_id(zfsvfs, zp->z_phys->zp_uid, cr, ZFS_OWNER); - - if ((uid = crgetuid(cr)) == downer || uid == fowner || + if ((uid = crgetuid(cr)) == zdp->z_uid || uid == zp->z_uid || (ZTOV(zp)->v_type == VREG && zfs_zaccess(zp, ACE_WRITE_DATA, 0, B_FALSE, cr) == 0)) return (0); diff --git a/module/zfs/zfs_fm.c b/module/zfs/zfs_fm.c index 8b7785fa8..0b4812666 100644 --- a/module/zfs/zfs_fm.c +++ b/module/zfs/zfs_fm.c @@ -28,6 +28,7 @@ #include <sys/vdev.h> #include <sys/vdev_impl.h> #include <sys/zio.h> +#include <sys/zio_checksum.h> #include <sys/fm/fs/zfs.h> #include <sys/fm/protocol.h> @@ -87,20 +88,32 @@ * this pointer is set to NULL, and no ereport will be generated (since it * doesn't actually correspond to any particular device or piece of data, * and the caller will always retry without caching or queueing anyway). + * + * For checksum errors, we want to include more information about the actual + * error which occurs. Accordingly, we build an ereport when the error is + * noticed, but instead of sending it in immediately, we hang it off of the + * io_cksum_report field of the logical IO. When the logical IO completes + * (successfully or not), zfs_ereport_finish_checksum() is called with the + * good and bad versions of the buffer (if available), and we annotate the + * ereport with information about the differences. */ -void -zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, +#ifdef _KERNEL +static void +zfs_ereport_start(nvlist_t **ereport_out, nvlist_t **detector_out, + const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, uint64_t stateoroffset, uint64_t size) { -#ifdef _KERNEL nvlist_t *ereport, *detector; + uint64_t ena; char class[64]; /* - * If we are doing a spa_tryimport(), ignore errors. + * If we are doing a spa_tryimport() or in recovery mode, + * ignore errors. */ - if (spa->spa_load_state == SPA_LOAD_TRYIMPORT) + if (spa_load_state(spa) == SPA_LOAD_TRYIMPORT || + spa_load_state(spa) == SPA_LOAD_RECOVER) return; /* @@ -108,7 +121,7 @@ zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, * failed, don't bother logging any new ereports - we're just going to * get the same diagnosis anyway. */ - if (spa->spa_load_state != SPA_LOAD_NONE && + if (spa_load_state(spa) != SPA_LOAD_NONE && spa->spa_last_open_failed) return; @@ -147,9 +160,7 @@ zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, * not yet been asynchronously placed into the REMOVED * state. */ - if (zio->io_vd == vd && - !vdev_accessible(vd, zio) && - strcmp(subclass, FM_EREPORT_ZFS_PROBE_FAILURE) != 0) + if (zio->io_vd == vd && !vdev_accessible(vd, zio)) return; /* @@ -164,6 +175,15 @@ zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, } } + /* + * For probe failure, we want to avoid posting ereports if we've + * already removed the device in the meantime. + */ + if (vd != NULL && + strcmp(subclass, FM_EREPORT_ZFS_PROBE_FAILURE) == 0 && + (vd->vdev_remove_wanted || vd->vdev_state == VDEV_STATE_REMOVED)) + return; + if ((ereport = fm_nvlist_create(NULL)) == NULL) return; @@ -182,7 +202,7 @@ zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, * state, use a SPA-wide ENA. Otherwise, if we are in an I/O state, use * a root zio-wide ENA. Otherwise, simply use a unique ENA. */ - if (spa->spa_load_state != SPA_LOAD_NONE) { + if (spa_load_state(spa) != SPA_LOAD_NONE) { if (spa->spa_ena == 0) spa->spa_ena = fm_ena_generate(0, FM_ENA_FMT1); ena = spa->spa_ena; @@ -218,7 +238,7 @@ zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, DATA_TYPE_STRING, spa_name(spa), FM_EREPORT_PAYLOAD_ZFS_POOL_GUID, DATA_TYPE_UINT64, spa_guid(spa), FM_EREPORT_PAYLOAD_ZFS_POOL_CONTEXT, DATA_TYPE_INT32, - spa->spa_load_state, NULL); + spa_load_state(spa), NULL); if (spa != NULL) { fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_POOL_FAILMODE, @@ -322,8 +342,339 @@ zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, FM_EREPORT_PAYLOAD_ZFS_PREV_STATE, DATA_TYPE_UINT64, stateoroffset, NULL); } + mutex_exit(&spa->spa_errlist_lock); + *ereport_out = ereport; + *detector_out = detector; +} + +/* if it's <= 128 bytes, save the corruption directly */ +#define ZFM_MAX_INLINE (128 / sizeof (uint64_t)) + +#define MAX_RANGES 16 + +typedef struct zfs_ecksum_info { + /* histograms of set and cleared bits by bit number in a 64-bit word */ + uint16_t zei_histogram_set[sizeof (uint64_t) * NBBY]; + uint16_t zei_histogram_cleared[sizeof (uint64_t) * NBBY]; + + /* inline arrays of bits set and cleared. */ + uint64_t zei_bits_set[ZFM_MAX_INLINE]; + uint64_t zei_bits_cleared[ZFM_MAX_INLINE]; + + /* + * for each range, the number of bits set and cleared. The Hamming + * distance between the good and bad buffers is the sum of them all. + */ + uint32_t zei_range_sets[MAX_RANGES]; + uint32_t zei_range_clears[MAX_RANGES]; + + struct zei_ranges { + uint32_t zr_start; + uint32_t zr_end; + } zei_ranges[MAX_RANGES]; + + size_t zei_range_count; + uint32_t zei_mingap; + uint32_t zei_allowed_mingap; + +} zfs_ecksum_info_t; + +static void +update_histogram(uint64_t value_arg, uint16_t *hist, uint32_t *count) +{ + size_t i; + size_t bits = 0; + uint64_t value = BE_64(value_arg); + + /* We store the bits in big-endian (largest-first) order */ + for (i = 0; i < 64; i++) { + if (value & (1ull << i)) { + hist[63 - i]++; + ++bits; + } + } + /* update the count of bits changed */ + *count += bits; +} + +/* + * We've now filled up the range array, and need to increase "mingap" and + * shrink the range list accordingly. zei_mingap is always the smallest + * distance between array entries, so we set the new_allowed_gap to be + * one greater than that. We then go through the list, joining together + * any ranges which are closer than the new_allowed_gap. + * + * By construction, there will be at least one. We also update zei_mingap + * to the new smallest gap, to prepare for our next invocation. + */ +static void +shrink_ranges(zfs_ecksum_info_t *eip) +{ + uint32_t mingap = UINT32_MAX; + uint32_t new_allowed_gap = eip->zei_mingap + 1; + + size_t idx, output; + size_t max = eip->zei_range_count; + + struct zei_ranges *r = eip->zei_ranges; + + ASSERT3U(eip->zei_range_count, >, 0); + ASSERT3U(eip->zei_range_count, <=, MAX_RANGES); + + output = idx = 0; + while (idx < max - 1) { + uint32_t start = r[idx].zr_start; + uint32_t end = r[idx].zr_end; + + while (idx < max - 1) { + idx++; + + uint32_t nstart = r[idx].zr_start; + uint32_t nend = r[idx].zr_end; + + uint32_t gap = nstart - end; + if (gap < new_allowed_gap) { + end = nend; + continue; + } + if (gap < mingap) + mingap = gap; + break; + } + r[output].zr_start = start; + r[output].zr_end = end; + output++; + } + ASSERT3U(output, <, eip->zei_range_count); + eip->zei_range_count = output; + eip->zei_mingap = mingap; + eip->zei_allowed_mingap = new_allowed_gap; +} + +static void +add_range(zfs_ecksum_info_t *eip, int start, int end) +{ + struct zei_ranges *r = eip->zei_ranges; + size_t count = eip->zei_range_count; + + if (count >= MAX_RANGES) { + shrink_ranges(eip); + count = eip->zei_range_count; + } + if (count == 0) { + eip->zei_mingap = UINT32_MAX; + eip->zei_allowed_mingap = 1; + } else { + int gap = start - r[count - 1].zr_end; + + if (gap < eip->zei_allowed_mingap) { + r[count - 1].zr_end = end; + return; + } + if (gap < eip->zei_mingap) + eip->zei_mingap = gap; + } + r[count].zr_start = start; + r[count].zr_end = end; + eip->zei_range_count++; +} + +static size_t +range_total_size(zfs_ecksum_info_t *eip) +{ + struct zei_ranges *r = eip->zei_ranges; + size_t count = eip->zei_range_count; + size_t result = 0; + size_t idx; + + for (idx = 0; idx < count; idx++) + result += (r[idx].zr_end - r[idx].zr_start); + + return (result); +} + +static zfs_ecksum_info_t * +annotate_ecksum(nvlist_t *ereport, zio_bad_cksum_t *info, + const uint8_t *goodbuf, const uint8_t *badbuf, size_t size, + boolean_t drop_if_identical) +{ + const uint64_t *good = (const uint64_t *)goodbuf; + const uint64_t *bad = (const uint64_t *)badbuf; + + uint64_t allset = 0; + uint64_t allcleared = 0; + + size_t nui64s = size / sizeof (uint64_t); + + size_t inline_size; + int no_inline = 0; + size_t idx; + size_t range; + + size_t offset = 0; + ssize_t start = -1; + + zfs_ecksum_info_t *eip = kmem_zalloc(sizeof (*eip), KM_SLEEP); + + /* don't do any annotation for injected checksum errors */ + if (info != NULL && info->zbc_injected) + return (eip); + + if (info != NULL && info->zbc_has_cksum) { + fm_payload_set(ereport, + FM_EREPORT_PAYLOAD_ZFS_CKSUM_EXPECTED, + DATA_TYPE_UINT64_ARRAY, + sizeof (info->zbc_expected) / sizeof (uint64_t), + (uint64_t *)&info->zbc_expected, + FM_EREPORT_PAYLOAD_ZFS_CKSUM_ACTUAL, + DATA_TYPE_UINT64_ARRAY, + sizeof (info->zbc_actual) / sizeof (uint64_t), + (uint64_t *)&info->zbc_actual, + FM_EREPORT_PAYLOAD_ZFS_CKSUM_ALGO, + DATA_TYPE_STRING, + info->zbc_checksum_name, + NULL); + + if (info->zbc_byteswapped) { + fm_payload_set(ereport, + FM_EREPORT_PAYLOAD_ZFS_CKSUM_BYTESWAP, + DATA_TYPE_BOOLEAN, 1, + NULL); + } + } + + if (badbuf == NULL || goodbuf == NULL) + return (eip); + + ASSERT3U(nui64s, <=, UINT16_MAX); + ASSERT3U(size, ==, nui64s * sizeof (uint64_t)); + ASSERT3U(size, <=, SPA_MAXBLOCKSIZE); + ASSERT3U(size, <=, UINT32_MAX); + + /* build up the range list by comparing the two buffers. */ + for (idx = 0; idx < nui64s; idx++) { + if (good[idx] == bad[idx]) { + if (start == -1) + continue; + + add_range(eip, start, idx); + start = -1; + } else { + if (start != -1) + continue; + + start = idx; + } + } + if (start != -1) + add_range(eip, start, idx); + + /* See if it will fit in our inline buffers */ + inline_size = range_total_size(eip); + if (inline_size > ZFM_MAX_INLINE) + no_inline = 1; + + /* + * If there is no change and we want to drop if the buffers are + * identical, do so. + */ + if (inline_size == 0 && drop_if_identical) { + kmem_free(eip, sizeof (*eip)); + return (NULL); + } + + /* + * Now walk through the ranges, filling in the details of the + * differences. Also convert our uint64_t-array offsets to byte + * offsets. + */ + for (range = 0; range < eip->zei_range_count; range++) { + size_t start = eip->zei_ranges[range].zr_start; + size_t end = eip->zei_ranges[range].zr_end; + + for (idx = start; idx < end; idx++) { + uint64_t set, cleared; + + // bits set in bad, but not in good + set = ((~good[idx]) & bad[idx]); + // bits set in good, but not in bad + cleared = (good[idx] & (~bad[idx])); + + allset |= set; + allcleared |= cleared; + + if (!no_inline) { + ASSERT3U(offset, <, inline_size); + eip->zei_bits_set[offset] = set; + eip->zei_bits_cleared[offset] = cleared; + offset++; + } + + update_histogram(set, eip->zei_histogram_set, + &eip->zei_range_sets[range]); + update_histogram(cleared, eip->zei_histogram_cleared, + &eip->zei_range_clears[range]); + } + + /* convert to byte offsets */ + eip->zei_ranges[range].zr_start *= sizeof (uint64_t); + eip->zei_ranges[range].zr_end *= sizeof (uint64_t); + } + eip->zei_allowed_mingap *= sizeof (uint64_t); + inline_size *= sizeof (uint64_t); + + /* fill in ereport */ + fm_payload_set(ereport, + FM_EREPORT_PAYLOAD_ZFS_BAD_OFFSET_RANGES, + DATA_TYPE_UINT32_ARRAY, 2 * eip->zei_range_count, + (uint32_t *)eip->zei_ranges, + FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_MIN_GAP, + DATA_TYPE_UINT32, eip->zei_allowed_mingap, + FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_SETS, + DATA_TYPE_UINT32_ARRAY, eip->zei_range_count, eip->zei_range_sets, + FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_CLEARS, + DATA_TYPE_UINT32_ARRAY, eip->zei_range_count, eip->zei_range_clears, + NULL); + + if (!no_inline) { + fm_payload_set(ereport, + FM_EREPORT_PAYLOAD_ZFS_BAD_SET_BITS, + DATA_TYPE_UINT8_ARRAY, + inline_size, (uint8_t *)eip->zei_bits_set, + FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_BITS, + DATA_TYPE_UINT8_ARRAY, + inline_size, (uint8_t *)eip->zei_bits_cleared, + NULL); + } else { + fm_payload_set(ereport, + FM_EREPORT_PAYLOAD_ZFS_BAD_SET_HISTOGRAM, + DATA_TYPE_UINT16_ARRAY, + NBBY * sizeof (uint64_t), eip->zei_histogram_set, + FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_HISTOGRAM, + DATA_TYPE_UINT16_ARRAY, + NBBY * sizeof (uint64_t), eip->zei_histogram_cleared, + NULL); + } + return (eip); +} +#endif + +void +zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, + uint64_t stateoroffset, uint64_t size) +{ +#ifdef _KERNEL + nvlist_t *ereport = NULL; + nvlist_t *detector = NULL; + + zfs_ereport_start(&ereport, &detector, + subclass, spa, vd, zio, stateoroffset, size); + + if (ereport == NULL) + return; + fm_ereport_post(ereport, EVCH_SLEEP); fm_nvlist_destroy(ereport, FM_NVA_FREE); @@ -331,6 +682,122 @@ zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, #endif } +void +zfs_ereport_start_checksum(spa_t *spa, vdev_t *vd, + struct zio *zio, uint64_t offset, uint64_t length, void *arg, + zio_bad_cksum_t *info) +{ + zio_cksum_report_t *report = kmem_zalloc(sizeof (*report), KM_SLEEP); + + if (zio->io_vsd != NULL) + zio->io_vsd_ops->vsd_cksum_report(zio, report, arg); + else + zio_vsd_default_cksum_report(zio, report, arg); + + /* copy the checksum failure information if it was provided */ + if (info != NULL) { + report->zcr_ckinfo = kmem_zalloc(sizeof (*info), KM_SLEEP); + bcopy(info, report->zcr_ckinfo, sizeof (*info)); + } + + report->zcr_align = 1ULL << vd->vdev_top->vdev_ashift; + report->zcr_length = length; + +#ifdef _KERNEL + zfs_ereport_start(&report->zcr_ereport, &report->zcr_detector, + FM_EREPORT_ZFS_CHECKSUM, spa, vd, zio, offset, length); + + if (report->zcr_ereport == NULL) { + report->zcr_free(report->zcr_cbdata, report->zcr_cbinfo); + kmem_free(report, sizeof (*report)); + return; + } +#endif + + mutex_enter(&spa->spa_errlist_lock); + report->zcr_next = zio->io_logical->io_cksum_report; + zio->io_logical->io_cksum_report = report; + mutex_exit(&spa->spa_errlist_lock); +} + +void +zfs_ereport_finish_checksum(zio_cksum_report_t *report, + const void *good_data, const void *bad_data, boolean_t drop_if_identical) +{ +#ifdef _KERNEL + zfs_ecksum_info_t *info = NULL; + info = annotate_ecksum(report->zcr_ereport, report->zcr_ckinfo, + good_data, bad_data, report->zcr_length, drop_if_identical); + + if (info != NULL) + fm_ereport_post(report->zcr_ereport, EVCH_SLEEP); + + fm_nvlist_destroy(report->zcr_ereport, FM_NVA_FREE); + fm_nvlist_destroy(report->zcr_detector, FM_NVA_FREE); + report->zcr_ereport = report->zcr_detector = NULL; + + if (info != NULL) + kmem_free(info, sizeof (*info)); +#endif +} + +void +zfs_ereport_free_checksum(zio_cksum_report_t *rpt) +{ +#ifdef _KERNEL + if (rpt->zcr_ereport != NULL) { + fm_nvlist_destroy(rpt->zcr_ereport, + FM_NVA_FREE); + fm_nvlist_destroy(rpt->zcr_detector, + FM_NVA_FREE); + } +#endif + rpt->zcr_free(rpt->zcr_cbdata, rpt->zcr_cbinfo); + + if (rpt->zcr_ckinfo != NULL) + kmem_free(rpt->zcr_ckinfo, sizeof (*rpt->zcr_ckinfo)); + + kmem_free(rpt, sizeof (*rpt)); +} + +void +zfs_ereport_send_interim_checksum(zio_cksum_report_t *report) +{ +#ifdef _KERNEL + fm_ereport_post(report->zcr_ereport, EVCH_SLEEP); +#endif +} + +void +zfs_ereport_post_checksum(spa_t *spa, vdev_t *vd, + struct zio *zio, uint64_t offset, uint64_t length, + const void *good_data, const void *bad_data, zio_bad_cksum_t *zbc) +{ +#ifdef _KERNEL + nvlist_t *ereport = NULL; + nvlist_t *detector = NULL; + zfs_ecksum_info_t *info; + + zfs_ereport_start(&ereport, &detector, + FM_EREPORT_ZFS_CHECKSUM, spa, vd, zio, offset, length); + + if (ereport == NULL) + return; + + info = annotate_ecksum(ereport, zbc, good_data, bad_data, length, + B_FALSE); + + if (info != NULL) + fm_ereport_post(ereport, EVCH_SLEEP); + + fm_nvlist_destroy(ereport, FM_NVA_FREE); + fm_nvlist_destroy(detector, FM_NVA_FREE); + + if (info != NULL) + kmem_free(info, sizeof (*info)); +#endif +} + static void zfs_post_common(spa_t *spa, vdev_t *vd, const char *name) { @@ -338,6 +805,9 @@ zfs_post_common(spa_t *spa, vdev_t *vd, const char *name) nvlist_t *resource; char class[64]; + if (spa_load_state(spa) == SPA_LOAD_TRYIMPORT) + return; + if ((resource = fm_nvlist_create(NULL)) == NULL) return; @@ -379,3 +849,15 @@ zfs_post_autoreplace(spa_t *spa, vdev_t *vd) { zfs_post_common(spa, vd, FM_RESOURCE_AUTOREPLACE); } + +/* + * The 'resource.fs.zfs.statechange' event is an internal signal that the + * given vdev has transitioned its state to DEGRADED or HEALTHY. This will + * cause the retire agent to repair any outstanding fault management cases + * open because the device was not found (fault.fs.zfs.device). + */ +void +zfs_post_state_change(spa_t *spa, vdev_t *vd) +{ + zfs_post_common(spa, vd, FM_RESOURCE_STATECHANGE); +} diff --git a/module/zfs/zfs_fuid.c b/module/zfs/zfs_fuid.c index e704b1ca9..8c0424e84 100644 --- a/module/zfs/zfs_fuid.c +++ b/module/zfs/zfs_fuid.c @@ -19,12 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> -#include <sys/sunddi.h> #include <sys/dmu.h> #include <sys/avl.h> #include <sys/zap.h> @@ -377,7 +375,7 @@ zfs_fuid_find_by_idx(zfsvfs_t *zfsvfs, uint32_t idx) rw_enter(&zfsvfs->z_fuid_lock, RW_READER); - if (zfsvfs->z_fuid_obj) + if (zfsvfs->z_fuid_obj || zfsvfs->z_fuid_dirty) domain = zfs_fuid_idx_domain(&zfsvfs->z_fuid_idx, idx); else domain = nulldomain; @@ -390,10 +388,26 @@ zfs_fuid_find_by_idx(zfsvfs_t *zfsvfs, uint32_t idx) void zfs_fuid_map_ids(znode_t *zp, cred_t *cr, uid_t *uidp, uid_t *gidp) { - *uidp = zfs_fuid_map_id(zp->z_zfsvfs, zp->z_phys->zp_uid, - cr, ZFS_OWNER); - *gidp = zfs_fuid_map_id(zp->z_zfsvfs, zp->z_phys->zp_gid, - cr, ZFS_GROUP); + uint64_t fuid, fgid; + sa_bulk_attr_t bulk[2]; + int count = 0; + + if (IS_EPHEMERAL(zp->z_uid) || IS_EPHEMERAL(zp->z_gid)) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zp->z_zfsvfs), + NULL, &fuid, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zp->z_zfsvfs), + NULL, &fgid, 8); + VERIFY(0 == sa_bulk_lookup(zp->z_sa_hdl, bulk, count)); + } + if (IS_EPHEMERAL(zp->z_uid)) + *uidp = zfs_fuid_map_id(zp->z_zfsvfs, zp->z_uid, cr, ZFS_OWNER); + else + *uidp = zp->z_uid; + if (IS_EPHEMERAL(zp->z_gid)) + *gidp = zfs_fuid_map_id(zp->z_zfsvfs, + zp->z_gid, cr, ZFS_GROUP); + else + *gidp = zp->z_gid; } uid_t @@ -427,7 +441,7 @@ zfs_fuid_map_id(zfsvfs_t *zfsvfs, uint64_t fuid, * If ACL has multiple domains, then keep only one copy of each unique * domain. */ -static void +void zfs_fuid_node_add(zfs_fuid_info_t **fuidpp, const char *domain, uint32_t rid, uint64_t idx, uint64_t id, zfs_fuid_type_t type) { @@ -488,6 +502,11 @@ zfs_fuid_node_add(zfs_fuid_info_t **fuidpp, const char *domain, uint32_t rid, /* * Create a file system FUID, based on information in the users cred + * + * If cred contains KSID_OWNER then it should be used to determine + * the uid otherwise cred's uid will be used. By default cred's gid + * is used unless it's an ephemeral ID in which case KSID_GROUP will + * be used if it exists. */ uint64_t zfs_fuid_create_cred(zfsvfs_t *zfsvfs, zfs_fuid_type_t type, @@ -503,18 +522,27 @@ zfs_fuid_create_cred(zfsvfs_t *zfsvfs, zfs_fuid_type_t type, VERIFY(type == ZFS_OWNER || type == ZFS_GROUP); ksid = crgetsid(cr, (type == ZFS_OWNER) ? KSID_OWNER : KSID_GROUP); - if (ksid) { - id = ksid_getid(ksid); - } else { - if (type == ZFS_OWNER) - id = crgetuid(cr); - else - id = crgetgid(cr); + + if (!zfsvfs->z_use_fuids || (ksid == NULL)) { + id = (type == ZFS_OWNER) ? crgetuid(cr) : crgetgid(cr); + + if (IS_EPHEMERAL(id)) + return ((type == ZFS_OWNER) ? UID_NOBODY : GID_NOBODY); + + return ((uint64_t)id); } - if (!zfsvfs->z_use_fuids || (!IS_EPHEMERAL(id))) + /* + * ksid is present and FUID is supported + */ + id = (type == ZFS_OWNER) ? ksid_getid(ksid) : crgetgid(cr); + + if (!IS_EPHEMERAL(id)) return ((uint64_t)id); + if (type == ZFS_GROUP) + id = ksid_getid(ksid); + rid = ksid_getrid(ksid); domain = ksid_getdomain(ksid); diff --git a/module/zfs/zfs_ioctl.c b/module/zfs/zfs_ioctl.c index 9cb40816d..de5fb1e4c 100644 --- a/module/zfs/zfs_ioctl.c +++ b/module/zfs/zfs_ioctl.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/types.h> @@ -36,12 +35,13 @@ #include <sys/cmn_err.h> #include <sys/stat.h> #include <sys/zfs_ioctl.h> +#include <sys/zfs_vfsops.h> #include <sys/zfs_znode.h> #include <sys/zap.h> #include <sys/spa.h> #include <sys/spa_impl.h> #include <sys/vdev.h> -#include <sys/vdev_impl.h> +#include <sys/priv_impl.h> #include <sys/dmu.h> #include <sys/dsl_dir.h> #include <sys/dsl_dataset.h> @@ -61,12 +61,14 @@ #include <sys/zfs_ctldir.h> #include <sys/zfs_dir.h> #include <sys/zvol.h> +#include <sys/dsl_scan.h> #include <sharefs/share.h> #include <sys/dmu_objset.h> #include "zfs_namecheck.h" #include "zfs_prop.h" #include "zfs_deleg.h" +#include "zfs_comutil.h" extern struct modlfs zfs_modlfs; @@ -102,17 +104,20 @@ static const char *userquota_perms[] = { }; static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); -static void clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops); +static int zfs_check_settable(const char *name, nvpair_t *property, + cred_t *cr); +static int zfs_check_clearable(char *dataset, nvlist_t *props, + nvlist_t **errors); static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, boolean_t *); -int zfs_set_prop_nvlist(const char *, nvlist_t *); +int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t **); /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ void __dprintf(const char *file, const char *func, int line, const char *fmt, ...) { const char *newfile; - char buf[256]; + char buf[512]; va_list adx; /* @@ -175,22 +180,15 @@ history_str_get(zfs_cmd_t *zc) static boolean_t zfs_is_bootfs(const char *name) { - spa_t *spa; - boolean_t ret = B_FALSE; - - if (spa_open(name, &spa, FTAG) == 0) { - if (spa->spa_bootfs) { - objset_t *os; + objset_t *os; - if (dmu_objset_open(name, DMU_OST_ZFS, - DS_MODE_USER | DS_MODE_READONLY, &os) == 0) { - ret = (dmu_objset_id(os) == spa->spa_bootfs); - dmu_objset_close(os); - } - } - spa_close(spa, FTAG); + if (dmu_objset_hold(name, FTAG, &os) == 0) { + boolean_t ret; + ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); + dmu_objset_rele(os, FTAG); + return (ret); } - return (ret); + return (B_FALSE); } /* @@ -224,13 +222,17 @@ zpl_earlier_version(const char *name, int version) objset_t *os; boolean_t rc = B_TRUE; - if (dmu_objset_open(name, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &os) == 0) { + if (dmu_objset_hold(name, FTAG, &os) == 0) { uint64_t zplversion; + if (dmu_objset_type(os) != DMU_OST_ZFS) { + dmu_objset_rele(os, FTAG); + return (B_TRUE); + } + /* XXX reading from non-owned objset */ if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) rc = zplversion < version; - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); } return (rc); } @@ -330,9 +332,109 @@ zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) return (error); } +/* + * Policy for setting the security label property. + * + * Returns 0 for success, non-zero for access and other errors. + */ +static int +zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) +{ + char ds_hexsl[MAXNAMELEN]; + bslabel_t ds_sl, new_sl; + boolean_t new_default = FALSE; + uint64_t zoned; + int needed_priv = -1; + int error; + + /* First get the existing dataset label. */ + error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), + 1, sizeof (ds_hexsl), &ds_hexsl, NULL); + if (error) + return (EPERM); + + if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) + new_default = TRUE; + + /* The label must be translatable */ + if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) + return (EINVAL); + + /* + * In a non-global zone, disallow attempts to set a label that + * doesn't match that of the zone; otherwise no other checks + * are needed. + */ + if (!INGLOBALZONE(curproc)) { + if (new_default || !blequal(&new_sl, CR_SL(CRED()))) + return (EPERM); + return (0); + } + + /* + * For global-zone datasets (i.e., those whose zoned property is + * "off", verify that the specified new label is valid for the + * global zone. + */ + if (dsl_prop_get_integer(name, + zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) + return (EPERM); + if (!zoned) { + if (zfs_check_global_label(name, strval) != 0) + return (EPERM); + } + + /* + * If the existing dataset label is nondefault, check if the + * dataset is mounted (label cannot be changed while mounted). + * Get the zfsvfs; if there isn't one, then the dataset isn't + * mounted (or isn't a dataset, doesn't exist, ...). + */ + if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { + objset_t *os; + static char *setsl_tag = "setsl_tag"; + + /* + * Try to own the dataset; abort if there is any error, + * (e.g., already mounted, in use, or other error). + */ + error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, + setsl_tag, &os); + if (error) + return (EPERM); + + dmu_objset_disown(os, setsl_tag); + + if (new_default) { + needed_priv = PRIV_FILE_DOWNGRADE_SL; + goto out_check; + } + + if (hexstr_to_label(strval, &new_sl) != 0) + return (EPERM); + + if (blstrictdom(&ds_sl, &new_sl)) + needed_priv = PRIV_FILE_DOWNGRADE_SL; + else if (blstrictdom(&new_sl, &ds_sl)) + needed_priv = PRIV_FILE_UPGRADE_SL; + } else { + /* dataset currently has a default label */ + if (!new_default) + needed_priv = PRIV_FILE_UPGRADE_SL; + } + +out_check: + if (needed_priv != -1) + return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); + return (0); +} + static int -zfs_secpolicy_setprop(const char *name, zfs_prop_t prop, cred_t *cr) +zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, + cred_t *cr) { + char *strval; + /* * Check permissions for special properties. */ @@ -354,16 +456,29 @@ zfs_secpolicy_setprop(const char *name, zfs_prop_t prop, cred_t *cr) * quota on things *under* (ie. contained by) * the thing they own. */ - if (dsl_prop_get_integer(name, "zoned", &zoned, + if (dsl_prop_get_integer(dsname, "zoned", &zoned, setpoint)) return (EPERM); - if (!zoned || strlen(name) <= strlen(setpoint)) + if (!zoned || strlen(dsname) <= strlen(setpoint)) return (EPERM); } break; + + case ZFS_PROP_MLSLABEL: + if (!is_system_labeled()) + return (EPERM); + + if (nvpair_value_string(propval, &strval) == 0) { + int err; + + err = zfs_set_slabel_policy(dsname, strval, CRED()); + if (err != 0) + return (err); + } + break; } - return (zfs_secpolicy_write_perms(name, zfs_prop_to_name(prop), cr)); + return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); } int @@ -385,13 +500,8 @@ zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr) int zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr) { - int error; - error = zfs_secpolicy_write_perms(zc->zc_name, - ZFS_DELEG_PERM_ROLLBACK, cr); - if (error == 0) - error = zfs_secpolicy_write_perms(zc->zc_name, - ZFS_DELEG_PERM_MOUNT, cr); - return (error); + return (zfs_secpolicy_write_perms(zc->zc_name, + ZFS_DELEG_PERM_ROLLBACK, cr)); } int @@ -492,19 +602,34 @@ zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr) } /* - * Must have sys_config privilege to check the iscsi permission + * Destroying snapshots with delegated permissions requires + * descendent mount and destroy permissions. + * Reassemble the full filesystem@snap name so dsl_deleg_access() + * can do the correct permission check. + * + * Since this routine is used when doing a recursive destroy of snapshots + * and destroying snapshots requires descendent permissions, a successfull + * check of the top level snapshot applies to snapshots of all descendent + * datasets as well. */ -/* ARGSUSED */ static int -zfs_secpolicy_iscsi(zfs_cmd_t *zc, cred_t *cr) +zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, cred_t *cr) { - return (secpolicy_zfs(cr)); + int error; + char *dsname; + + dsname = kmem_asprintf("%s@%s", zc->zc_name, zc->zc_value); + + error = zfs_secpolicy_destroy_perms(dsname, cr); + + strfree(dsname); + return (error); } int zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) { - char parentname[MAXNAMELEN]; + char parentname[MAXNAMELEN]; int error; if ((error = zfs_secpolicy_write_perms(from, @@ -539,7 +664,7 @@ zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr) static int zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) { - char parentname[MAXNAMELEN]; + char parentname[MAXNAMELEN]; objset_t *clone; int error; @@ -548,20 +673,19 @@ zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) if (error) return (error); - error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &clone); + error = dmu_objset_hold(zc->zc_name, FTAG, &clone); if (error == 0) { dsl_dataset_t *pclone = NULL; dsl_dir_t *dd; - dd = clone->os->os_dsl_dataset->ds_dir; + dd = clone->os_dsl_dataset->ds_dir; rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); error = dsl_dataset_hold_obj(dd->dd_pool, dd->dd_phys->dd_origin_obj, FTAG, &pclone); rw_exit(&dd->dd_pool->dp_config_rwlock); if (error) { - dmu_objset_close(clone); + dmu_objset_rele(clone, FTAG); return (error); } @@ -569,7 +693,7 @@ zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) ZFS_DELEG_PERM_MOUNT, cr); dsl_dataset_name(pclone, parentname); - dmu_objset_close(clone); + dmu_objset_rele(clone, FTAG); dsl_dataset_rele(pclone, FTAG); if (error == 0) error = zfs_secpolicy_write_perms(parentname, @@ -598,16 +722,8 @@ zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr) int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) { - int error; - - if ((error = zfs_secpolicy_write_perms(name, - ZFS_DELEG_PERM_SNAPSHOT, cr)) != 0) - return (error); - - error = zfs_secpolicy_write_perms(name, - ZFS_DELEG_PERM_MOUNT, cr); - - return (error); + return (zfs_secpolicy_write_perms(name, + ZFS_DELEG_PERM_SNAPSHOT, cr)); } static int @@ -620,8 +736,8 @@ zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr) static int zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr) { - char parentname[MAXNAMELEN]; - int error; + char parentname[MAXNAMELEN]; + int error; if ((error = zfs_get_parent(zc->zc_name, parentname, sizeof (parentname))) != 0) @@ -670,22 +786,6 @@ zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr) } /* - * Just like zfs_secpolicy_config, except that we will check for - * mount permission on the dataset for permission to create/remove - * the minor nodes. - */ -static int -zfs_secpolicy_minor(zfs_cmd_t *zc, cred_t *cr) -{ - if (secpolicy_sys_config(cr, B_FALSE) != 0) { - return (dsl_deleg_access(zc->zc_name, - ZFS_DELEG_PERM_MOUNT, cr)); - } - - return (0); -} - -/* * Policy for fault injection. Requires all privileges. */ /* ARGSUSED */ @@ -706,9 +806,8 @@ zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr) return (zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_USERPROP, cr)); } else { - if (!zfs_prop_inheritable(prop)) - return (EINVAL); - return (zfs_secpolicy_setprop(zc->zc_name, prop, cr)); + return (zfs_secpolicy_setprop(zc->zc_name, prop, + NULL, cr)); } } @@ -758,7 +857,8 @@ zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr) static int zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr) { - return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, cr)); + return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, + NULL, cr)); } static int @@ -811,11 +911,46 @@ get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) } static int +fit_error_list(zfs_cmd_t *zc, nvlist_t **errors) +{ + size_t size; + + VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); + + if (size > zc->zc_nvlist_dst_size) { + nvpair_t *more_errors; + int n = 0; + + if (zc->zc_nvlist_dst_size < 1024) + return (ENOMEM); + + VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0); + more_errors = nvlist_prev_nvpair(*errors, NULL); + + do { + nvpair_t *pair = nvlist_prev_nvpair(*errors, + more_errors); + VERIFY(nvlist_remove_nvpair(*errors, pair) == 0); + n++; + VERIFY(nvlist_size(*errors, &size, + NV_ENCODE_NATIVE) == 0); + } while (size > zc->zc_nvlist_dst_size); + + VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0); + VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0); + ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); + ASSERT(size <= zc->zc_nvlist_dst_size); + } + + return (0); +} + +static int put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) { char *packed = NULL; + int error = 0; size_t size; - int error; VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); @@ -825,8 +960,9 @@ put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) packed = kmem_alloc(size, KM_SLEEP); VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, KM_SLEEP) == 0); - error = ddi_copyout(packed, - (void *)(uintptr_t)zc->zc_nvlist_dst, size, zc->zc_iflags); + if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, + size, zc->zc_iflags) != 0) + error = EFAULT; kmem_free(packed, size); } @@ -835,25 +971,28 @@ put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) } static int -getzfsvfs(const char *dsname, zfsvfs_t **zvp) +getzfsvfs(const char *dsname, zfsvfs_t **zfvp) { objset_t *os; int error; - error = dmu_objset_open(dsname, DMU_OST_ZFS, - DS_MODE_USER | DS_MODE_READONLY, &os); + error = dmu_objset_hold(dsname, FTAG, &os); if (error) return (error); + if (dmu_objset_type(os) != DMU_OST_ZFS) { + dmu_objset_rele(os, FTAG); + return (EINVAL); + } - mutex_enter(&os->os->os_user_ptr_lock); - *zvp = dmu_objset_get_user(os); - if (*zvp) { - VFS_HOLD((*zvp)->z_vfs); + mutex_enter(&os->os_user_ptr_lock); + *zfvp = dmu_objset_get_user(os); + if (*zfvp) { + VFS_HOLD((*zfvp)->z_vfs); } else { error = ESRCH; } - mutex_exit(&os->os->os_user_ptr_lock); - dmu_objset_close(os); + mutex_exit(&os->os_user_ptr_lock); + dmu_objset_rele(os, FTAG); return (error); } @@ -862,22 +1001,21 @@ getzfsvfs(const char *dsname, zfsvfs_t **zvp) * case its z_vfs will be NULL, and it will be opened as the owner. */ static int -zfsvfs_hold(const char *name, boolean_t readonly, void *tag, zfsvfs_t **zvp) +zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp) { int error = 0; - int mode = DS_MODE_OWNER | (readonly ? DS_MODE_READONLY : 0); - if (getzfsvfs(name, zvp) != 0) - error = zfsvfs_create(name, mode, zvp); + if (getzfsvfs(name, zfvp) != 0) + error = zfsvfs_create(name, zfvp); if (error == 0) { - rrw_enter(&(*zvp)->z_teardown_lock, RW_READER, tag); - if ((*zvp)->z_unmounted) { + rrw_enter(&(*zfvp)->z_teardown_lock, RW_READER, tag); + if ((*zfvp)->z_unmounted) { /* * XXX we could probably try again, since the unmounting * thread should be just about to disassociate the * objset from the zfsvfs. */ - rrw_exit(&(*zvp)->z_teardown_lock, tag); + rrw_exit(&(*zfvp)->z_teardown_lock, tag); return (EBUSY); } } @@ -892,7 +1030,7 @@ zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) if (zfsvfs->z_vfs) { VFS_RELE(zfsvfs->z_vfs); } else { - dmu_objset_close(zfsvfs->z_os); + dmu_objset_disown(zfsvfs->z_os, zfsvfs); zfsvfs_free(zfsvfs); } } @@ -951,8 +1089,8 @@ zfs_ioc_pool_create(zfs_cmd_t *zc) /* * Set the remaining root properties */ - if (!error && - (error = zfs_set_prop_nvlist(zc->zc_name, rootprops)) != 0) + if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, + ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) (void) spa_destroy(zc->zc_name); if (buf != NULL) @@ -973,15 +1111,17 @@ zfs_ioc_pool_destroy(zfs_cmd_t *zc) int error; zfs_log_history(zc); error = spa_destroy(zc->zc_name); + if (error == 0) + zvol_remove_minors(zc->zc_name); return (error); } static int zfs_ioc_pool_import(zfs_cmd_t *zc) { - int error; nvlist_t *config, *props = NULL; uint64_t guid; + int error; if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, zc->zc_iflags, &config)) != 0) @@ -998,11 +1138,13 @@ zfs_ioc_pool_import(zfs_cmd_t *zc) guid != zc->zc_guid) error = EINVAL; else if (zc->zc_cookie) - error = spa_import_verbatim(zc->zc_name, config, - props); + error = spa_import_verbatim(zc->zc_name, config, props); else error = spa_import(zc->zc_name, config, props); + if (zc->zc_nvlist_dst != 0) + (void) put_nvlist(zc, config); + nvlist_free(config); if (props) @@ -1020,6 +1162,8 @@ zfs_ioc_pool_export(zfs_cmd_t *zc) zfs_log_history(zc); error = spa_export(zc->zc_name, NULL, force, hardforce); + if (error == 0) + zvol_remove_minors(zc->zc_name); return (error); } @@ -1093,8 +1237,13 @@ zfs_ioc_pool_tryimport(zfs_cmd_t *zc) return (error); } +/* + * inputs: + * zc_name name of the pool + * zc_cookie scan func (pool_scan_func_t) + */ static int -zfs_ioc_pool_scrub(zfs_cmd_t *zc) +zfs_ioc_pool_scan(zfs_cmd_t *zc) { spa_t *spa; int error; @@ -1102,7 +1251,10 @@ zfs_ioc_pool_scrub(zfs_cmd_t *zc) if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) return (error); - error = spa_scrub(spa, zc->zc_cookie); + if (zc->zc_cookie == POOL_SCAN_NONE) + error = spa_scan_stop(spa); + else + error = spa_scan(spa, zc->zc_cookie); spa_close(spa, FTAG); @@ -1186,18 +1338,30 @@ zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) return (0); } +/* + * inputs: + * zc_name name of filesystem + * zc_obj object to find + * + * outputs: + * zc_value name of object + */ static int zfs_ioc_obj_to_path(zfs_cmd_t *zc) { - objset_t *osp; + objset_t *os; int error; - if ((error = dmu_objset_open(zc->zc_name, DMU_OST_ZFS, - DS_MODE_USER | DS_MODE_READONLY, &osp)) != 0) + /* XXX reading from objset not owned */ + if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) return (error); - error = zfs_obj_to_path(osp, zc->zc_obj, zc->zc_value, + if (dmu_objset_type(os) != DMU_OST_ZFS) { + dmu_objset_rele(os, FTAG); + return (EINVAL); + } + error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, sizeof (zc->zc_value)); - dmu_objset_close(osp); + dmu_objset_rele(os, FTAG); return (error); } @@ -1232,7 +1396,8 @@ zfs_ioc_vdev_add(zfs_cmd_t *zc) * * l2cache and spare devices are ok to be added to a rootpool. */ - if (spa->spa_bootfs != 0 && nl2cache == 0 && nspares == 0) { + if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { + nvlist_free(config); spa_close(spa, FTAG); return (EDOM); } @@ -1245,6 +1410,12 @@ zfs_ioc_vdev_add(zfs_cmd_t *zc) return (error); } +/* + * inputs: + * zc_name name of the pool + * zc_nvlist_conf nvlist of devices to remove + * zc_cookie to stop the remove? + */ static int zfs_ioc_vdev_remove(zfs_cmd_t *zc) { @@ -1278,11 +1449,19 @@ zfs_ioc_vdev_set_state(zfs_cmd_t *zc) break; case VDEV_STATE_FAULTED: - error = vdev_fault(spa, zc->zc_guid); + if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && + zc->zc_obj != VDEV_AUX_EXTERNAL) + zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; + + error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); break; case VDEV_STATE_DEGRADED: - error = vdev_degrade(spa, zc->zc_guid); + if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && + zc->zc_obj != VDEV_AUX_EXTERNAL) + zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; + + error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); break; default: @@ -1330,6 +1509,41 @@ zfs_ioc_vdev_detach(zfs_cmd_t *zc) } static int +zfs_ioc_vdev_split(zfs_cmd_t *zc) +{ + spa_t *spa; + nvlist_t *config, *props = NULL; + int error; + boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); + + if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) + return (error); + + if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, + zc->zc_iflags, &config)) { + spa_close(spa, FTAG); + return (error); + } + + if (zc->zc_nvlist_src_size != 0 && (error = + get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, + zc->zc_iflags, &props))) { + spa_close(spa, FTAG); + nvlist_free(config); + return (error); + } + + error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); + + spa_close(spa, FTAG); + + nvlist_free(config); + nvlist_free(props); + + return (error); +} + +static int zfs_ioc_vdev_setpath(zfs_cmd_t *zc) { spa_t *spa; @@ -1380,20 +1594,20 @@ zfs_ioc_objset_stats(zfs_cmd_t *zc) int error; nvlist_t *nv; - if (error = dmu_objset_open(zc->zc_name, - DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)) + if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) return (error); dmu_objset_fast_stat(os, &zc->zc_objset_stats); if (zc->zc_nvlist_dst != 0 && - (error = dsl_prop_get_all(os, &nv, FALSE)) == 0) { + (error = dsl_prop_get_all(os, &nv)) == 0) { dmu_objset_stats(os, nv); /* * NB: zvol_get_stats() will read the objset contents, * which we aren't supposed to do with a * DS_MODE_USER hold, because it could be * inconsistent. So this is a bit of a workaround... + * XXX reading with out owning */ if (!zc->zc_objset_stats.dds_inconsistent) { if (dmu_objset_type(os) == DMU_OST_ZVOL) @@ -1403,7 +1617,50 @@ zfs_ioc_objset_stats(zfs_cmd_t *zc) nvlist_free(nv); } - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); + return (error); +} + +/* + * inputs: + * zc_name name of filesystem + * zc_nvlist_dst_size size of buffer for property nvlist + * + * outputs: + * zc_nvlist_dst received property nvlist + * zc_nvlist_dst_size size of received property nvlist + * + * Gets received properties (distinct from local properties on or after + * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from + * local property values. + */ +static int +zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) +{ + objset_t *os = NULL; + int error; + nvlist_t *nv; + + if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) + return (error); + + /* + * Without this check, we would return local property values if the + * caller has not already received properties on or after + * SPA_VERSION_RECVD_PROPS. + */ + if (!dsl_prop_get_hasrecvd(os)) { + dmu_objset_rele(os, FTAG); + return (ENOTSUP); + } + + if (zc->zc_nvlist_dst != 0 && + (error = dsl_prop_get_received(os, &nv)) == 0) { + error = put_nvlist(zc, nv); + nvlist_free(nv); + } + + dmu_objset_rele(os, FTAG); return (error); } @@ -1438,8 +1695,8 @@ zfs_ioc_objset_zplprops(zfs_cmd_t *zc) objset_t *os; int err; - if (err = dmu_objset_open(zc->zc_name, - DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)) + /* XXX reading without owning */ + if (err = dmu_objset_hold(zc->zc_name, FTAG, &os)) return (err); dmu_objset_fast_stat(os, &zc->zc_objset_stats); @@ -1464,7 +1721,7 @@ zfs_ioc_objset_zplprops(zfs_cmd_t *zc) } else { err = ENOENT; } - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); return (err); } @@ -1504,9 +1761,10 @@ zfs_ioc_dataset_list_next(zfs_cmd_t *zc) objset_t *os; int error; char *p; + size_t orig_len = strlen(zc->zc_name); - if (error = dmu_objset_open(zc->zc_name, - DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os)) { +top: + if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) { if (error == ENOENT) error = ESRCH; return (error); @@ -1535,12 +1793,22 @@ zfs_ioc_dataset_list_next(zfs_cmd_t *zc) NULL, &zc->zc_cookie); if (error == ENOENT) error = ESRCH; - } while (error == 0 && dataset_name_hidden(zc->zc_name)); - dmu_objset_close(os); + } while (error == 0 && dataset_name_hidden(zc->zc_name) && + !(zc->zc_iflags & FKIOCTL)); + dmu_objset_rele(os, FTAG); - if (error == 0) + /* + * If it's an internal dataset (ie. with a '$' in its name), + * don't try to get stats for it, otherwise we'll return ENOENT. + */ + if (error == 0 && strchr(zc->zc_name, '$') == NULL) { error = zfs_ioc_objset_stats(zc); /* fill in the stats */ - + if (error == ENOENT) { + /* We lost a race with destroy, get the next one. */ + zc->zc_name[orig_len] = '\0'; + goto top; + } + } return (error); } @@ -1562,32 +1830,38 @@ zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) objset_t *os; int error; - error = dmu_objset_open(zc->zc_name, - DMU_OST_ANY, DS_MODE_USER | DS_MODE_READONLY, &os); +top: + if (zc->zc_cookie == 0) + (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch, + NULL, DS_FIND_SNAPSHOTS); + + error = dmu_objset_hold(zc->zc_name, FTAG, &os); if (error) return (error == ENOENT ? ESRCH : error); - if (zc->zc_cookie == 0) { - (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch, - NULL, DS_FIND_SNAPSHOTS); - } /* * A dataset name of maximum length cannot have any snapshots, * so exit immediately. */ if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); return (ESRCH); } error = dmu_snapshot_list_next(os, sizeof (zc->zc_name) - strlen(zc->zc_name), zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie, NULL); - dmu_objset_close(os); - if (error == 0) + dmu_objset_rele(os, FTAG); + if (error == 0) { error = zfs_ioc_objset_stats(zc); /* fill in the stats */ - else if (error == ENOENT) + if (error == ENOENT) { + /* We lost a race with destroy, get the next one. */ + *strchr(zc->zc_name, '@') = '\0'; + goto top; + } + } else if (error == ENOENT) { error = ESRCH; + } /* if we failed, undo the @ that we tacked on to zc_name */ if (error) @@ -1595,266 +1869,300 @@ zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) return (error); } -int -zfs_set_prop_nvlist(const char *name, nvlist_t *nvl) +static int +zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) { - nvpair_t *elem; - int error = 0; - uint64_t intval; - char *strval; - nvlist_t *genericnvl; - boolean_t issnap = (strchr(name, '@') != NULL); + const char *propname = nvpair_name(pair); + uint64_t *valary; + unsigned int vallen; + const char *domain; + char *dash; + zfs_userquota_prop_t type; + uint64_t rid; + uint64_t quota; + zfsvfs_t *zfsvfs; + int err; + + if (nvpair_type(pair) == DATA_TYPE_NVLIST) { + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); + if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &pair) != 0) + return (EINVAL); + } /* - * First validate permission to set all of the properties + * A correctly constructed propname is encoded as + * userquota@<rid>-<domain>. */ - elem = NULL; - while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { - const char *propname = nvpair_name(elem); - zfs_prop_t prop = zfs_name_to_prop(propname); + if ((dash = strchr(propname, '-')) == NULL || + nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || + vallen != 3) + return (EINVAL); - if (prop == ZPROP_INVAL) { - /* - * If this is a user-defined property, it must be a - * string, and there is no further validation to do. - */ - if (zfs_prop_user(propname) && - nvpair_type(elem) == DATA_TYPE_STRING) { - if (error = zfs_secpolicy_write_perms(name, - ZFS_DELEG_PERM_USERPROP, CRED())) - return (error); - continue; - } + domain = dash + 1; + type = valary[0]; + rid = valary[1]; + quota = valary[2]; - if (!issnap && zfs_prop_userquota(propname) && - nvpair_type(elem) == DATA_TYPE_UINT64_ARRAY) { - const char *perm; - const char *up = zfs_userquota_prop_prefixes - [ZFS_PROP_USERQUOTA]; - if (strncmp(propname, up, strlen(up)) == 0) - perm = ZFS_DELEG_PERM_USERQUOTA; - else - perm = ZFS_DELEG_PERM_GROUPQUOTA; - if (error = zfs_secpolicy_write_perms(name, - perm, CRED())) - return (error); - continue; - } + err = zfsvfs_hold(dsname, FTAG, &zfsvfs); + if (err == 0) { + err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); + zfsvfs_rele(zfsvfs, FTAG); + } - return (EINVAL); - } + return (err); +} - if (issnap) - return (EINVAL); +/* + * If the named property is one that has a special function to set its value, + * return 0 on success and a positive error code on failure; otherwise if it is + * not one of the special properties handled by this function, return -1. + * + * XXX: It would be better for callers of the property interface if we handled + * these special cases in dsl_prop.c (in the dsl layer). + */ +static int +zfs_prop_set_special(const char *dsname, zprop_source_t source, + nvpair_t *pair) +{ + const char *propname = nvpair_name(pair); + zfs_prop_t prop = zfs_name_to_prop(propname); + uint64_t intval; + int err; - if ((error = zfs_secpolicy_setprop(name, prop, CRED())) != 0) - return (error); + if (prop == ZPROP_INVAL) { + if (zfs_prop_userquota(propname)) + return (zfs_prop_set_userquota(dsname, pair)); + return (-1); + } - /* - * Check that this value is valid for this pool version - */ - switch (prop) { - case ZFS_PROP_COMPRESSION: - /* - * If the user specified gzip compression, make sure - * the SPA supports it. We ignore any errors here since - * we'll catch them later. - */ - if (nvpair_type(elem) == DATA_TYPE_UINT64 && - nvpair_value_uint64(elem, &intval) == 0) { - if (intval >= ZIO_COMPRESS_GZIP_1 && - intval <= ZIO_COMPRESS_GZIP_9 && - zfs_earlier_version(name, - SPA_VERSION_GZIP_COMPRESSION)) - return (ENOTSUP); + if (nvpair_type(pair) == DATA_TYPE_NVLIST) { + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); + VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &pair) == 0); + } - /* - * If this is a bootable dataset then - * verify that the compression algorithm - * is supported for booting. We must return - * something other than ENOTSUP since it - * implies a downrev pool version. - */ - if (zfs_is_bootfs(name) && - !BOOTFS_COMPRESS_VALID(intval)) - return (ERANGE); - } - break; + if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) + return (-1); - case ZFS_PROP_COPIES: - if (zfs_earlier_version(name, SPA_VERSION_DITTO_BLOCKS)) - return (ENOTSUP); - break; + VERIFY(0 == nvpair_value_uint64(pair, &intval)); - case ZFS_PROP_SHARESMB: - if (zpl_earlier_version(name, ZPL_VERSION_FUID)) - return (ENOTSUP); + switch (prop) { + case ZFS_PROP_QUOTA: + err = dsl_dir_set_quota(dsname, source, intval); + break; + case ZFS_PROP_REFQUOTA: + err = dsl_dataset_set_quota(dsname, source, intval); + break; + case ZFS_PROP_RESERVATION: + err = dsl_dir_set_reservation(dsname, source, intval); + break; + case ZFS_PROP_REFRESERVATION: + err = dsl_dataset_set_reservation(dsname, source, intval); + break; + case ZFS_PROP_VOLSIZE: + err = zvol_set_volsize(dsname, ddi_driver_major(zfs_dip), + intval); + break; + case ZFS_PROP_VERSION: + { + zfsvfs_t *zfsvfs; + + if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs)) != 0) break; - case ZFS_PROP_ACLINHERIT: - if (nvpair_type(elem) == DATA_TYPE_UINT64 && - nvpair_value_uint64(elem, &intval) == 0) - if (intval == ZFS_ACL_PASSTHROUGH_X && - zfs_earlier_version(name, - SPA_VERSION_PASSTHROUGH_X)) - return (ENOTSUP); - } - } + err = zfs_set_version(zfsvfs, intval); + zfsvfs_rele(zfsvfs, FTAG); - VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); - elem = NULL; - while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { - const char *propname = nvpair_name(elem); - zfs_prop_t prop = zfs_name_to_prop(propname); + if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { + zfs_cmd_t *zc; - if (prop == ZPROP_INVAL) { - if (zfs_prop_userquota(propname)) { - uint64_t *valary; - unsigned int vallen; - const char *domain; - zfs_userquota_prop_t type; - uint64_t rid; - uint64_t quota; - zfsvfs_t *zfsvfs; - - VERIFY(nvpair_value_uint64_array(elem, - &valary, &vallen) == 0); - VERIFY(vallen == 3); - type = valary[0]; - rid = valary[1]; - quota = valary[2]; - domain = propname + - strlen(zfs_userquota_prop_prefixes[type]); - - error = zfsvfs_hold(name, B_FALSE, FTAG, - &zfsvfs); - if (error == 0) { - error = zfs_set_userquota(zfsvfs, - type, domain, rid, quota); - zfsvfs_rele(zfsvfs, FTAG); - } - if (error == 0) - continue; - else - goto out; - } else if (zfs_prop_user(propname)) { - VERIFY(nvpair_value_string(elem, &strval) == 0); - error = dsl_prop_set(name, propname, 1, - strlen(strval) + 1, strval); - if (error == 0) - continue; - else - goto out; - } + zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); + (void) strcpy(zc->zc_name, dsname); + (void) zfs_ioc_userspace_upgrade(zc); + kmem_free(zc, sizeof (zfs_cmd_t)); } + break; + } - switch (prop) { - case ZFS_PROP_QUOTA: - if ((error = nvpair_value_uint64(elem, &intval)) != 0 || - (error = dsl_dir_set_quota(name, intval)) != 0) - goto out; - break; - - case ZFS_PROP_REFQUOTA: - if ((error = nvpair_value_uint64(elem, &intval)) != 0 || - (error = dsl_dataset_set_quota(name, intval)) != 0) - goto out; - break; - - case ZFS_PROP_RESERVATION: - if ((error = nvpair_value_uint64(elem, &intval)) != 0 || - (error = dsl_dir_set_reservation(name, - intval)) != 0) - goto out; - break; + default: + err = -1; + } - case ZFS_PROP_REFRESERVATION: - if ((error = nvpair_value_uint64(elem, &intval)) != 0 || - (error = dsl_dataset_set_reservation(name, - intval)) != 0) - goto out; - break; + return (err); +} - case ZFS_PROP_VOLSIZE: - if ((error = nvpair_value_uint64(elem, &intval)) != 0 || - (error = zvol_set_volsize(name, - ddi_driver_major(zfs_dip), intval)) != 0) - goto out; - break; +/* + * This function is best effort. If it fails to set any of the given properties, + * it continues to set as many as it can and returns the first error + * encountered. If the caller provides a non-NULL errlist, it also gives the + * complete list of names of all the properties it failed to set along with the + * corresponding error numbers. The caller is responsible for freeing the + * returned errlist. + * + * If every property is set successfully, zero is returned and the list pointed + * at by errlist is NULL. + */ +int +zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, + nvlist_t **errlist) +{ + nvpair_t *pair; + nvpair_t *propval; + int rv = 0; + uint64_t intval; + char *strval; + nvlist_t *genericnvl; + nvlist_t *errors; + nvlist_t *retrynvl; - case ZFS_PROP_VOLBLOCKSIZE: - if ((error = nvpair_value_uint64(elem, &intval)) != 0 || - (error = zvol_set_volblocksize(name, intval)) != 0) - goto out; - break; + VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); + VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); + VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); - case ZFS_PROP_VERSION: - { - zfsvfs_t *zfsvfs; - - if ((error = nvpair_value_uint64(elem, &intval)) != 0) - goto out; - if ((error = zfsvfs_hold(name, B_FALSE, FTAG, - &zfsvfs)) != 0) - goto out; - error = zfs_set_version(zfsvfs, intval); - zfsvfs_rele(zfsvfs, FTAG); - - if (error == 0 && intval >= ZPL_VERSION_USERSPACE) { - zfs_cmd_t zc = { 0 }; - (void) strcpy(zc.zc_name, name); - (void) zfs_ioc_userspace_upgrade(&zc); - } - if (error) - goto out; - break; +retry: + pair = NULL; + while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { + const char *propname = nvpair_name(pair); + zfs_prop_t prop = zfs_name_to_prop(propname); + int err = 0; + + /* decode the property value */ + propval = pair; + if (nvpair_type(pair) == DATA_TYPE_NVLIST) { + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); + if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &propval) != 0) + err = EINVAL; } - default: - if (nvpair_type(elem) == DATA_TYPE_STRING) { - if (zfs_prop_get_type(prop) != - PROP_TYPE_STRING) { - error = EINVAL; - goto out; - } - } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { + /* Validate value type */ + if (err == 0 && prop == ZPROP_INVAL) { + if (zfs_prop_user(propname)) { + if (nvpair_type(propval) != DATA_TYPE_STRING) + err = EINVAL; + } else if (zfs_prop_userquota(propname)) { + if (nvpair_type(propval) != + DATA_TYPE_UINT64_ARRAY) + err = EINVAL; + } + } else if (err == 0) { + if (nvpair_type(propval) == DATA_TYPE_STRING) { + if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) + err = EINVAL; + } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { const char *unused; - VERIFY(nvpair_value_uint64(elem, &intval) == 0); + VERIFY(nvpair_value_uint64(propval, + &intval) == 0); switch (zfs_prop_get_type(prop)) { case PROP_TYPE_NUMBER: break; case PROP_TYPE_STRING: - error = EINVAL; - goto out; + err = EINVAL; + break; case PROP_TYPE_INDEX: if (zfs_prop_index_to_string(prop, - intval, &unused) != 0) { - error = EINVAL; - goto out; - } + intval, &unused) != 0) + err = EINVAL; break; default: cmn_err(CE_PANIC, "unknown property type"); - break; } } else { - error = EINVAL; - goto out; + err = EINVAL; } - if ((error = nvlist_add_nvpair(genericnvl, elem)) != 0) - goto out; } + + /* Validate permissions */ + if (err == 0) + err = zfs_check_settable(dsname, pair, CRED()); + + if (err == 0) { + err = zfs_prop_set_special(dsname, source, pair); + if (err == -1) { + /* + * For better performance we build up a list of + * properties to set in a single transaction. + */ + err = nvlist_add_nvpair(genericnvl, pair); + } else if (err != 0 && nvl != retrynvl) { + /* + * This may be a spurious error caused by + * receiving quota and reservation out of order. + * Try again in a second pass. + */ + err = nvlist_add_nvpair(retrynvl, pair); + } + } + + if (err != 0) + VERIFY(nvlist_add_int32(errors, propname, err) == 0); } - if (nvlist_next_nvpair(genericnvl, NULL) != NULL) { - error = dsl_props_set(name, genericnvl); + if (nvl != retrynvl && !nvlist_empty(retrynvl)) { + nvl = retrynvl; + goto retry; + } + + if (!nvlist_empty(genericnvl) && + dsl_props_set(dsname, source, genericnvl) != 0) { + /* + * If this fails, we still want to set as many properties as we + * can, so try setting them individually. + */ + pair = NULL; + while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { + const char *propname = nvpair_name(pair); + int err = 0; + + propval = pair; + if (nvpair_type(pair) == DATA_TYPE_NVLIST) { + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); + VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &propval) == 0); + } + + if (nvpair_type(propval) == DATA_TYPE_STRING) { + VERIFY(nvpair_value_string(propval, + &strval) == 0); + err = dsl_prop_set(dsname, propname, source, 1, + strlen(strval) + 1, strval); + } else { + VERIFY(nvpair_value_uint64(propval, + &intval) == 0); + err = dsl_prop_set(dsname, propname, source, 8, + 1, &intval); + } + + if (err != 0) { + VERIFY(nvlist_add_int32(errors, propname, + err) == 0); + } + } } -out: nvlist_free(genericnvl); - return (error); + nvlist_free(retrynvl); + + if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { + nvlist_free(errors); + errors = NULL; + } else { + VERIFY(nvpair_value_int32(pair, &rv) == 0); + } + + if (errlist == NULL) + nvlist_free(errors); + else + *errlist = errors; + + return (rv); } /* @@ -1863,15 +2171,15 @@ out: static int zfs_check_userprops(char *fsname, nvlist_t *nvl) { - nvpair_t *elem = NULL; + nvpair_t *pair = NULL; int error = 0; - while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { - const char *propname = nvpair_name(elem); + while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { + const char *propname = nvpair_name(pair); char *valstr; if (!zfs_prop_user(propname) || - nvpair_type(elem) != DATA_TYPE_STRING) + nvpair_type(pair) != DATA_TYPE_STRING) return (EINVAL); if (error = zfs_secpolicy_write_perms(fsname, @@ -1881,49 +2189,96 @@ zfs_check_userprops(char *fsname, nvlist_t *nvl) if (strlen(propname) >= ZAP_MAXNAMELEN) return (ENAMETOOLONG); - VERIFY(nvpair_value_string(elem, &valstr) == 0); + VERIFY(nvpair_value_string(pair, &valstr) == 0); if (strlen(valstr) >= ZAP_MAXVALUELEN) return (E2BIG); } return (0); } +static void +props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) +{ + nvpair_t *pair; + + VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); + + pair = NULL; + while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { + if (nvlist_exists(skipped, nvpair_name(pair))) + continue; + + VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); + } +} + +static int +clear_received_props(objset_t *os, const char *fs, nvlist_t *props, + nvlist_t *skipped) +{ + int err = 0; + nvlist_t *cleared_props = NULL; + props_skip(props, skipped, &cleared_props); + if (!nvlist_empty(cleared_props)) { + /* + * Acts on local properties until the dataset has received + * properties at least once on or after SPA_VERSION_RECVD_PROPS. + */ + zprop_source_t flags = (ZPROP_SRC_NONE | + (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0)); + err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL); + } + nvlist_free(cleared_props); + return (err); +} + /* * inputs: * zc_name name of filesystem * zc_value name of property to set * zc_nvlist_src{_size} nvlist of properties to apply - * zc_cookie clear existing local props? + * zc_cookie received properties flag * - * outputs: none + * outputs: + * zc_nvlist_dst{_size} error for each unapplied received property */ static int zfs_ioc_set_prop(zfs_cmd_t *zc) { nvlist_t *nvl; + boolean_t received = zc->zc_cookie; + zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : + ZPROP_SRC_LOCAL); + nvlist_t *errors = NULL; int error; if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, zc->zc_iflags, &nvl)) != 0) return (error); - if (zc->zc_cookie) { + if (received) { nvlist_t *origprops; objset_t *os; - if (dmu_objset_open(zc->zc_name, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &os) == 0) { - if (dsl_prop_get_all(os, &origprops, TRUE) == 0) { - clear_props(zc->zc_name, origprops, nvl); + if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) { + if (dsl_prop_get_received(os, &origprops) == 0) { + (void) clear_received_props(os, + zc->zc_name, origprops, nvl); nvlist_free(origprops); } - dmu_objset_close(os); - } + dsl_prop_set_hasrecvd(os); + dmu_objset_rele(os, FTAG); + } } - error = zfs_set_prop_nvlist(zc->zc_name, nvl); + error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors); + if (zc->zc_nvlist_dst != NULL && errors != NULL) { + (void) put_nvlist(zc, errors); + } + + nvlist_free(errors); nvlist_free(nvl); return (error); } @@ -1932,14 +2287,75 @@ zfs_ioc_set_prop(zfs_cmd_t *zc) * inputs: * zc_name name of filesystem * zc_value name of property to inherit + * zc_cookie revert to received value if TRUE * * outputs: none */ static int zfs_ioc_inherit_prop(zfs_cmd_t *zc) { + const char *propname = zc->zc_value; + zfs_prop_t prop = zfs_name_to_prop(propname); + boolean_t received = zc->zc_cookie; + zprop_source_t source = (received + ? ZPROP_SRC_NONE /* revert to received value, if any */ + : ZPROP_SRC_INHERITED); /* explicitly inherit */ + + if (received) { + nvlist_t *dummy; + nvpair_t *pair; + zprop_type_t type; + int err; + + /* + * zfs_prop_set_special() expects properties in the form of an + * nvpair with type info. + */ + if (prop == ZPROP_INVAL) { + if (!zfs_prop_user(propname)) + return (EINVAL); + + type = PROP_TYPE_STRING; + } else if (prop == ZFS_PROP_VOLSIZE || + prop == ZFS_PROP_VERSION) { + return (EINVAL); + } else { + type = zfs_prop_get_type(prop); + } + + VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); + + switch (type) { + case PROP_TYPE_STRING: + VERIFY(0 == nvlist_add_string(dummy, propname, "")); + break; + case PROP_TYPE_NUMBER: + case PROP_TYPE_INDEX: + VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); + break; + default: + nvlist_free(dummy); + return (EINVAL); + } + + pair = nvlist_next_nvpair(dummy, NULL); + err = zfs_prop_set_special(zc->zc_name, source, pair); + nvlist_free(dummy); + if (err != -1) + return (err); /* special property already handled */ + } else { + /* + * Only check this in the non-received case. We want to allow + * 'inherit -S' to revert non-inheritable properties like quota + * and reservation to the received or default values even though + * they are not considered inheritable. + */ + if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) + return (EINVAL); + } + /* the property name has been validated by zfs_secpolicy_inherit() */ - return (dsl_prop_set(zc->zc_name, zc->zc_value, 0, 0, NULL)); + return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL)); } static int @@ -1948,28 +2364,30 @@ zfs_ioc_pool_set_props(zfs_cmd_t *zc) nvlist_t *props; spa_t *spa; int error; - nvpair_t *elem; + nvpair_t *pair; - if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, - zc->zc_iflags, &props))) + if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, + zc->zc_iflags, &props)) return (error); /* * If the only property is the configfile, then just do a spa_lookup() * to handle the faulted case. */ - elem = nvlist_next_nvpair(props, NULL); - if (elem != NULL && strcmp(nvpair_name(elem), + pair = nvlist_next_nvpair(props, NULL); + if (pair != NULL && strcmp(nvpair_name(pair), zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && - nvlist_next_nvpair(props, elem) == NULL) { + nvlist_next_nvpair(props, pair) == NULL) { mutex_enter(&spa_namespace_lock); if ((spa = spa_lookup(zc->zc_name)) != NULL) { spa_configfile_set(spa, props, B_FALSE); spa_config_sync(spa, B_FALSE, B_TRUE); } mutex_exit(&spa_namespace_lock); - if (spa != NULL) + if (spa != NULL) { + nvlist_free(props); return (0); + } } if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { @@ -2016,53 +2434,6 @@ zfs_ioc_pool_get_props(zfs_cmd_t *zc) return (error); } -static int -zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc) -{ - nvlist_t *nvp; - int error; - uint32_t uid; - uint32_t gid; - uint32_t *groups; - uint_t group_cnt; - cred_t *usercred; - - if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, - zc->zc_iflags, &nvp)) != 0) { - return (error); - } - - if ((error = nvlist_lookup_uint32(nvp, - ZFS_DELEG_PERM_UID, &uid)) != 0) { - nvlist_free(nvp); - return (EPERM); - } - - if ((error = nvlist_lookup_uint32(nvp, - ZFS_DELEG_PERM_GID, &gid)) != 0) { - nvlist_free(nvp); - return (EPERM); - } - - if ((error = nvlist_lookup_uint32_array(nvp, ZFS_DELEG_PERM_GROUPS, - &groups, &group_cnt)) != 0) { - nvlist_free(nvp); - return (EPERM); - } - usercred = cralloc(); - if ((crsetugid(usercred, uid, gid) != 0) || - (crsetgroups(usercred, group_cnt, (gid_t *)groups) != 0)) { - nvlist_free(nvp); - crfree(usercred); - return (EPERM); - } - nvlist_free(nvp); - error = dsl_deleg_access(zc->zc_name, - zfs_prop_to_name(ZFS_PROP_SHAREISCSI), usercred); - crfree(usercred); - return (error); -} - /* * inputs: * zc_name name of filesystem @@ -2135,30 +2506,6 @@ zfs_ioc_get_fsacl(zfs_cmd_t *zc) } /* - * inputs: - * zc_name name of volume - * - * outputs: none - */ -static int -zfs_ioc_create_minor(zfs_cmd_t *zc) -{ - return (zvol_create_minor(zc->zc_name, ddi_driver_major(zfs_dip))); -} - -/* - * inputs: - * zc_name name of volume - * - * outputs: none - */ -static int -zfs_ioc_remove_minor(zfs_cmd_t *zc) -{ - return (zvol_remove_minor(zc->zc_name)); -} - -/* * Search the vfs list for a specified resource. Returns a pointer to it * or NULL if no suitable entry is found. The caller of this routine * is responsible for releasing the returned vfs pointer. @@ -2216,8 +2563,8 @@ zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) */ static int zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, - boolean_t fuids_ok, nvlist_t *createprops, nvlist_t *zplprops, - boolean_t *is_ci) + boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, + nvlist_t *zplprops, boolean_t *is_ci) { uint64_t sense = ZFS_PROP_UNDEFINED; uint64_t norm = ZFS_PROP_UNDEFINED; @@ -2253,6 +2600,7 @@ zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, */ if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || (zplver >= ZPL_VERSION_FUID && !fuids_ok) || + (zplver >= ZPL_VERSION_SA && !sa_ok) || (zplver < ZPL_VERSION_NORMALIZATION && (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || sense != ZFS_PROP_UNDEFINED))) @@ -2294,11 +2642,13 @@ static int zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, nvlist_t *zplprops, boolean_t *is_ci) { - boolean_t fuids_ok = B_TRUE; + boolean_t fuids_ok, sa_ok; uint64_t zplver = ZPL_VERSION; objset_t *os = NULL; char parentname[MAXNAMELEN]; char *cp; + spa_t *spa; + uint64_t spa_vers; int error; (void) strlcpy(parentname, dataset, sizeof (parentname)); @@ -2306,23 +2656,25 @@ zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, ASSERT(cp != NULL); cp[0] = '\0'; - if (zfs_earlier_version(dataset, SPA_VERSION_USERSPACE)) - zplver = ZPL_VERSION_USERSPACE - 1; - if (zfs_earlier_version(dataset, SPA_VERSION_FUID)) { - zplver = ZPL_VERSION_FUID - 1; - fuids_ok = B_FALSE; - } + if ((error = spa_open(dataset, &spa, FTAG)) != 0) + return (error); + + spa_vers = spa_version(spa); + spa_close(spa, FTAG); + + zplver = zfs_zpl_version_map(spa_vers); + fuids_ok = (zplver >= ZPL_VERSION_FUID); + sa_ok = (zplver >= ZPL_VERSION_SA); /* * Open parent object set so we can inherit zplprop values. */ - if ((error = dmu_objset_open(parentname, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &os)) != 0) + if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) return (error); - error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, createprops, + error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, zplprops, is_ci); - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); return (error); } @@ -2330,17 +2682,17 @@ static int zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, nvlist_t *zplprops, boolean_t *is_ci) { - boolean_t fuids_ok = B_TRUE; + boolean_t fuids_ok; + boolean_t sa_ok; uint64_t zplver = ZPL_VERSION; int error; - if (spa_vers < SPA_VERSION_FUID) { - zplver = ZPL_VERSION_FUID - 1; - fuids_ok = B_FALSE; - } + zplver = zfs_zpl_version_map(spa_vers); + fuids_ok = (zplver >= ZPL_VERSION_FUID); + sa_ok = (zplver >= ZPL_VERSION_SA); - error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, createprops, - zplprops, is_ci); + error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, + createprops, zplprops, is_ci); return (error); } @@ -2399,21 +2751,18 @@ zfs_ioc_create(zfs_cmd_t *zc) return (EINVAL); } - error = dmu_objset_open(zc->zc_value, type, - DS_MODE_USER | DS_MODE_READONLY, &clone); + error = dmu_objset_hold(zc->zc_value, FTAG, &clone); if (error) { nvlist_free(nvprops); return (error); } - error = dmu_objset_create(zc->zc_name, type, clone, 0, - NULL, NULL); + error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0); + dmu_objset_rele(clone, FTAG); if (error) { - dmu_objset_close(clone); nvlist_free(nvprops); return (error); } - dmu_objset_close(clone); } else { boolean_t is_insensitive = B_FALSE; @@ -2470,7 +2819,7 @@ zfs_ioc_create(zfs_cmd_t *zc) return (error); } } - error = dmu_objset_create(zc->zc_name, type, NULL, + error = dmu_objset_create(zc->zc_name, type, is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); nvlist_free(zct.zct_zplprops); } @@ -2479,7 +2828,9 @@ zfs_ioc_create(zfs_cmd_t *zc) * It would be nice to do this atomically. */ if (error == 0) { - if ((error = zfs_set_prop_nvlist(zc->zc_name, nvprops)) != 0) + error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL, + nvprops, NULL); + if (error != 0) (void) dmu_objset_destroy(zc->zc_name, B_FALSE); } nvlist_free(nvprops); @@ -2493,7 +2844,8 @@ zfs_ioc_create(zfs_cmd_t *zc) * zc_cookie recursive flag * zc_nvlist_src[_size] property list * - * outputs: none + * outputs: + * zc_value short snapname (i.e. part after the '@') */ static int zfs_ioc_snapshot(zfs_cmd_t *zc) @@ -2514,7 +2866,7 @@ zfs_ioc_snapshot(zfs_cmd_t *zc) if (error) goto out; - if (nvprops != NULL && nvlist_next_nvpair(nvprops, NULL) != NULL && + if (!nvlist_empty(nvprops) && zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) { error = ENOTSUP; goto out; @@ -2529,20 +2881,15 @@ out: } int -zfs_unmount_snap(char *name, void *arg) +zfs_unmount_snap(const char *name, void *arg) { vfs_t *vfsp = NULL; if (arg) { char *snapname = arg; - int len = strlen(name) + strlen(snapname) + 2; - char *buf = kmem_alloc(len, KM_SLEEP); - - (void) strcpy(buf, name); - (void) strcat(buf, "@"); - (void) strcat(buf, snapname); - vfsp = zfs_get_vfs(buf); - kmem_free(buf, len); + char *fullname = kmem_asprintf("%s@%s", name, snapname); + vfsp = zfs_get_vfs(fullname); + strfree(fullname); } else if (strchr(name, '@')) { vfsp = zfs_get_vfs(name); } @@ -2599,13 +2946,17 @@ zfs_ioc_destroy_snaps(zfs_cmd_t *zc) static int zfs_ioc_destroy(zfs_cmd_t *zc) { + int err; if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { - int err = zfs_unmount_snap(zc->zc_name, NULL); + err = zfs_unmount_snap(zc->zc_name, NULL); if (err) return (err); } - return (dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy)); + err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy); + if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) + (void) zvol_remove_minor(zc->zc_name); + return (err); } /* @@ -2617,38 +2968,78 @@ zfs_ioc_destroy(zfs_cmd_t *zc) static int zfs_ioc_rollback(zfs_cmd_t *zc) { - objset_t *os; + dsl_dataset_t *ds, *clone; int error; - zfsvfs_t *zfsvfs = NULL; + zfsvfs_t *zfsvfs; + char *clone_name; + + error = dsl_dataset_hold(zc->zc_name, FTAG, &ds); + if (error) + return (error); + + /* must not be a snapshot */ + if (dsl_dataset_is_snapshot(ds)) { + dsl_dataset_rele(ds, FTAG); + return (EINVAL); + } + + /* must have a most recent snapshot */ + if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) { + dsl_dataset_rele(ds, FTAG); + return (EINVAL); + } /* - * Get the zfsvfs for the receiving objset. There - * won't be one if we're operating on a zvol, if the - * objset doesn't exist yet, or is not mounted. + * Create clone of most recent snapshot. */ - error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, DS_MODE_USER, &os); + clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name); + error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT); if (error) - return (error); + goto out; - if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { - int mode; + error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone); + if (error) + goto out; - error = zfs_suspend_fs(zfsvfs, NULL, &mode); + /* + * Do clone swap. + */ + if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { + error = zfs_suspend_fs(zfsvfs); if (error == 0) { int resume_err; - error = dmu_objset_rollback(os); - resume_err = zfs_resume_fs(zfsvfs, zc->zc_name, mode); + if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { + error = dsl_dataset_clone_swap(clone, ds, + B_TRUE); + dsl_dataset_disown(ds, FTAG); + ds = NULL; + } else { + error = EBUSY; + } + resume_err = zfs_resume_fs(zfsvfs, zc->zc_name); error = error ? error : resume_err; - } else { - dmu_objset_close(os); } VFS_RELE(zfsvfs->z_vfs); } else { - error = dmu_objset_rollback(os); + if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { + error = dsl_dataset_clone_swap(clone, ds, B_TRUE); + dsl_dataset_disown(ds, FTAG); + ds = NULL; + } else { + error = EBUSY; + } } - /* Note, the dmu_objset_rollback() releases the objset for us. */ + /* + * Destroy clone (which also closes it). + */ + (void) dsl_dataset_destroy(clone, FTAG, B_FALSE); + +out: + strfree(clone_name); + if (ds) + dsl_dataset_rele(ds, FTAG); return (error); } @@ -2681,31 +3072,267 @@ zfs_ioc_rename(zfs_cmd_t *zc) if (err) return (err); } + if (zc->zc_objset_type == DMU_OST_ZVOL) + (void) zvol_remove_minor(zc->zc_name); return (dmu_objset_rename(zc->zc_name, zc->zc_value, recursive)); } -static void -clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops) +static int +zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) +{ + const char *propname = nvpair_name(pair); + boolean_t issnap = (strchr(dsname, '@') != NULL); + zfs_prop_t prop = zfs_name_to_prop(propname); + uint64_t intval; + int err; + + if (prop == ZPROP_INVAL) { + if (zfs_prop_user(propname)) { + if (err = zfs_secpolicy_write_perms(dsname, + ZFS_DELEG_PERM_USERPROP, cr)) + return (err); + return (0); + } + + if (!issnap && zfs_prop_userquota(propname)) { + const char *perm = NULL; + const char *uq_prefix = + zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; + const char *gq_prefix = + zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; + + if (strncmp(propname, uq_prefix, + strlen(uq_prefix)) == 0) { + perm = ZFS_DELEG_PERM_USERQUOTA; + } else if (strncmp(propname, gq_prefix, + strlen(gq_prefix)) == 0) { + perm = ZFS_DELEG_PERM_GROUPQUOTA; + } else { + /* USERUSED and GROUPUSED are read-only */ + return (EINVAL); + } + + if (err = zfs_secpolicy_write_perms(dsname, perm, cr)) + return (err); + return (0); + } + + return (EINVAL); + } + + if (issnap) + return (EINVAL); + + if (nvpair_type(pair) == DATA_TYPE_NVLIST) { + /* + * dsl_prop_get_all_impl() returns properties in this + * format. + */ + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); + VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &pair) == 0); + } + + /* + * Check that this value is valid for this pool version + */ + switch (prop) { + case ZFS_PROP_COMPRESSION: + /* + * If the user specified gzip compression, make sure + * the SPA supports it. We ignore any errors here since + * we'll catch them later. + */ + if (nvpair_type(pair) == DATA_TYPE_UINT64 && + nvpair_value_uint64(pair, &intval) == 0) { + if (intval >= ZIO_COMPRESS_GZIP_1 && + intval <= ZIO_COMPRESS_GZIP_9 && + zfs_earlier_version(dsname, + SPA_VERSION_GZIP_COMPRESSION)) { + return (ENOTSUP); + } + + if (intval == ZIO_COMPRESS_ZLE && + zfs_earlier_version(dsname, + SPA_VERSION_ZLE_COMPRESSION)) + return (ENOTSUP); + + /* + * If this is a bootable dataset then + * verify that the compression algorithm + * is supported for booting. We must return + * something other than ENOTSUP since it + * implies a downrev pool version. + */ + if (zfs_is_bootfs(dsname) && + !BOOTFS_COMPRESS_VALID(intval)) { + return (ERANGE); + } + } + break; + + case ZFS_PROP_COPIES: + if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) + return (ENOTSUP); + break; + + case ZFS_PROP_DEDUP: + if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) + return (ENOTSUP); + break; + + case ZFS_PROP_SHARESMB: + if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) + return (ENOTSUP); + break; + + case ZFS_PROP_ACLINHERIT: + if (nvpair_type(pair) == DATA_TYPE_UINT64 && + nvpair_value_uint64(pair, &intval) == 0) { + if (intval == ZFS_ACL_PASSTHROUGH_X && + zfs_earlier_version(dsname, + SPA_VERSION_PASSTHROUGH_X)) + return (ENOTSUP); + } + break; + } + + return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); +} + +/* + * Removes properties from the given props list that fail permission checks + * needed to clear them and to restore them in case of a receive error. For each + * property, make sure we have both set and inherit permissions. + * + * Returns the first error encountered if any permission checks fail. If the + * caller provides a non-NULL errlist, it also gives the complete list of names + * of all the properties that failed a permission check along with the + * corresponding error numbers. The caller is responsible for freeing the + * returned errlist. + * + * If every property checks out successfully, zero is returned and the list + * pointed at by errlist is NULL. + */ +static int +zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) { zfs_cmd_t *zc; - nvpair_t *prop; + nvpair_t *pair, *next_pair; + nvlist_t *errors; + int err, rv = 0; if (props == NULL) - return; + return (0); + + VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); + zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); (void) strcpy(zc->zc_name, dataset); - for (prop = nvlist_next_nvpair(props, NULL); prop; - prop = nvlist_next_nvpair(props, prop)) { - if (newprops != NULL && - nvlist_exists(newprops, nvpair_name(prop))) - continue; - (void) strcpy(zc->zc_value, nvpair_name(prop)); - if (zfs_secpolicy_inherit(zc, CRED()) == 0) - (void) zfs_ioc_inherit_prop(zc); + pair = nvlist_next_nvpair(props, NULL); + while (pair != NULL) { + next_pair = nvlist_next_nvpair(props, pair); + + (void) strcpy(zc->zc_value, nvpair_name(pair)); + if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || + (err = zfs_secpolicy_inherit(zc, CRED())) != 0) { + VERIFY(nvlist_remove_nvpair(props, pair) == 0); + VERIFY(nvlist_add_int32(errors, + zc->zc_value, err) == 0); + } + pair = next_pair; } kmem_free(zc, sizeof (zfs_cmd_t)); + + if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { + nvlist_free(errors); + errors = NULL; + } else { + VERIFY(nvpair_value_int32(pair, &rv) == 0); + } + + if (errlist == NULL) + nvlist_free(errors); + else + *errlist = errors; + + return (rv); +} + +static boolean_t +propval_equals(nvpair_t *p1, nvpair_t *p2) +{ + if (nvpair_type(p1) == DATA_TYPE_NVLIST) { + /* dsl_prop_get_all_impl() format */ + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); + VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &p1) == 0); + } + + if (nvpair_type(p2) == DATA_TYPE_NVLIST) { + nvlist_t *attrs; + VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); + VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, + &p2) == 0); + } + + if (nvpair_type(p1) != nvpair_type(p2)) + return (B_FALSE); + + if (nvpair_type(p1) == DATA_TYPE_STRING) { + char *valstr1, *valstr2; + + VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); + VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); + return (strcmp(valstr1, valstr2) == 0); + } else { + uint64_t intval1, intval2; + + VERIFY(nvpair_value_uint64(p1, &intval1) == 0); + VERIFY(nvpair_value_uint64(p2, &intval2) == 0); + return (intval1 == intval2); + } +} + +/* + * Remove properties from props if they are not going to change (as determined + * by comparison with origprops). Remove them from origprops as well, since we + * do not need to clear or restore properties that won't change. + */ +static void +props_reduce(nvlist_t *props, nvlist_t *origprops) +{ + nvpair_t *pair, *next_pair; + + if (origprops == NULL) + return; /* all props need to be received */ + + pair = nvlist_next_nvpair(props, NULL); + while (pair != NULL) { + const char *propname = nvpair_name(pair); + nvpair_t *match; + + next_pair = nvlist_next_nvpair(props, pair); + + if ((nvlist_lookup_nvpair(origprops, propname, + &match) != 0) || !propval_equals(pair, match)) + goto next; /* need to set received value */ + + /* don't clear the existing received value */ + (void) nvlist_remove_nvpair(origprops, match); + /* don't bother receiving the property */ + (void) nvlist_remove_nvpair(props, pair); +next: + pair = next_pair; + } } +#ifdef DEBUG +static boolean_t zfs_ioc_recv_inject_err; +#endif + /* * inputs: * zc_name name of containing filesystem @@ -2718,6 +3345,8 @@ clear_props(char *dataset, nvlist_t *props, nvlist_t *newprops) * * outputs: * zc_cookie number of bytes read + * zc_nvlist_dst{_size} error for each unapplied received property + * zc_obj zprop_errflags_t */ static int zfs_ioc_recv(zfs_cmd_t *zc) @@ -2726,13 +3355,17 @@ zfs_ioc_recv(zfs_cmd_t *zc) objset_t *os; dmu_recv_cookie_t drc; boolean_t force = (boolean_t)zc->zc_guid; - int error, fd; + int fd; + int error = 0; + int props_error = 0; + nvlist_t *errors; offset_t off; - nvlist_t *props = NULL; - nvlist_t *origprops = NULL; + nvlist_t *props = NULL; /* sent properties */ + nvlist_t *origprops = NULL; /* existing properties */ objset_t *origin = NULL; char *tosnap; char tofs[ZFS_MAXNAMELEN]; + boolean_t first_recvd_props = B_FALSE; if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || strchr(zc->zc_value, '@') == NULL || @@ -2741,8 +3374,7 @@ zfs_ioc_recv(zfs_cmd_t *zc) (void) strcpy(tofs, zc->zc_value); tosnap = strchr(tofs, '@'); - *tosnap = '\0'; - tosnap++; + *tosnap++ = '\0'; if (zc->zc_nvlist_src != NULL && (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, @@ -2756,41 +3388,90 @@ zfs_ioc_recv(zfs_cmd_t *zc) return (EBADF); } - if (props && dmu_objset_open(tofs, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &os) == 0) { + VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); + + if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) { + if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) && + !dsl_prop_get_hasrecvd(os)) { + first_recvd_props = B_TRUE; + } + /* - * If new properties are supplied, they are to completely - * replace the existing ones, so stash away the existing ones. + * If new received properties are supplied, they are to + * completely replace the existing received properties, so stash + * away the existing ones. */ - (void) dsl_prop_get_all(os, &origprops, TRUE); + if (dsl_prop_get_received(os, &origprops) == 0) { + nvlist_t *errlist = NULL; + /* + * Don't bother writing a property if its value won't + * change (and avoid the unnecessary security checks). + * + * The first receive after SPA_VERSION_RECVD_PROPS is a + * special case where we blow away all local properties + * regardless. + */ + if (!first_recvd_props) + props_reduce(props, origprops); + if (zfs_check_clearable(tofs, origprops, + &errlist) != 0) + (void) nvlist_merge(errors, errlist, 0); + nvlist_free(errlist); + } - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); } if (zc->zc_string[0]) { - error = dmu_objset_open(zc->zc_string, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &origin); + error = dmu_objset_hold(zc->zc_string, FTAG, &origin); if (error) goto out; } - error = dmu_recv_begin(tofs, tosnap, &zc->zc_begin_record, - force, origin, &drc); + error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds, + &zc->zc_begin_record, force, origin, &drc); if (origin) - dmu_objset_close(origin); + dmu_objset_rele(origin, FTAG); if (error) goto out; /* - * Reset properties. We do this before we receive the stream - * so that the properties are applied to the new data. + * Set properties before we receive the stream so that they are applied + * to the new data. Note that we must call dmu_recv_stream() if + * dmu_recv_begin() succeeds. */ if (props) { - clear_props(tofs, origprops, props); + nvlist_t *errlist; + + if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) { + if (drc.drc_newfs) { + if (spa_version(os->os_spa) >= + SPA_VERSION_RECVD_PROPS) + first_recvd_props = B_TRUE; + } else if (origprops != NULL) { + if (clear_received_props(os, tofs, origprops, + first_recvd_props ? NULL : props) != 0) + zc->zc_obj |= ZPROP_ERR_NOCLEAR; + } else { + zc->zc_obj |= ZPROP_ERR_NOCLEAR; + } + dsl_prop_set_hasrecvd(os); + } else if (!drc.drc_newfs) { + zc->zc_obj |= ZPROP_ERR_NOCLEAR; + } + + (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, + props, &errlist); + (void) nvlist_merge(errors, errlist, 0); + nvlist_free(errlist); + } + + if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) { /* - * XXX - Note, this is all-or-nothing; should be best-effort. + * Caller made zc->zc_nvlist_dst less than the minimum expected + * size or supplied an invalid address. */ - (void) zfs_set_prop_nvlist(tofs, props); + props_error = EINVAL; } off = fp->f_offset; @@ -2802,24 +3483,17 @@ zfs_ioc_recv(zfs_cmd_t *zc) if (getzfsvfs(tofs, &zfsvfs) == 0) { /* online recv */ int end_err; - char *osname; - int mode; - osname = kmem_alloc(MAXNAMELEN, KM_SLEEP); - error = zfs_suspend_fs(zfsvfs, osname, &mode); + error = zfs_suspend_fs(zfsvfs); /* * If the suspend fails, then the recv_end will * likely also fail, and clean up after itself. */ end_err = dmu_recv_end(&drc); - if (error == 0) { - int resume_err = - zfs_resume_fs(zfsvfs, osname, mode); - error = error ? error : resume_err; - } + if (error == 0) + error = zfs_resume_fs(zfsvfs, tofs); error = error ? error : end_err; VFS_RELE(zfsvfs->z_vfs); - kmem_free(osname, MAXNAMELEN); } else { error = dmu_recv_end(&drc); } @@ -2829,17 +3503,64 @@ zfs_ioc_recv(zfs_cmd_t *zc) if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) fp->f_offset = off; +#ifdef DEBUG + if (zfs_ioc_recv_inject_err) { + zfs_ioc_recv_inject_err = B_FALSE; + error = 1; + } +#endif /* * On error, restore the original props. */ if (error && props) { - clear_props(tofs, props, NULL); - (void) zfs_set_prop_nvlist(tofs, origprops); + if (dmu_objset_hold(tofs, FTAG, &os) == 0) { + if (clear_received_props(os, tofs, props, NULL) != 0) { + /* + * We failed to clear the received properties. + * Since we may have left a $recvd value on the + * system, we can't clear the $hasrecvd flag. + */ + zc->zc_obj |= ZPROP_ERR_NORESTORE; + } else if (first_recvd_props) { + dsl_prop_unset_hasrecvd(os); + } + dmu_objset_rele(os, FTAG); + } else if (!drc.drc_newfs) { + /* We failed to clear the received properties. */ + zc->zc_obj |= ZPROP_ERR_NORESTORE; + } + + if (origprops == NULL && !drc.drc_newfs) { + /* We failed to stash the original properties. */ + zc->zc_obj |= ZPROP_ERR_NORESTORE; + } + + /* + * dsl_props_set() will not convert RECEIVED to LOCAL on or + * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL + * explictly if we're restoring local properties cleared in the + * first new-style receive. + */ + if (origprops != NULL && + zfs_set_prop_nvlist(tofs, (first_recvd_props ? + ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), + origprops, NULL) != 0) { + /* + * We stashed the original properties but failed to + * restore them. + */ + zc->zc_obj |= ZPROP_ERR_NORESTORE; + } } out: nvlist_free(props); nvlist_free(origprops); + nvlist_free(errors); releasef(fd); + + if (error == 0) + error = props_error; + return (error); } @@ -2861,8 +3582,7 @@ zfs_ioc_send(zfs_cmd_t *zc) int error; offset_t off; - error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &tosnap); + error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap); if (error) return (error); @@ -2876,20 +3596,19 @@ zfs_ioc_send(zfs_cmd_t *zc) if (cp) *(cp+1) = 0; (void) strncat(buf, zc->zc_value, MAXPATHLEN); - error = dmu_objset_open(buf, DMU_OST_ANY, - DS_MODE_USER | DS_MODE_READONLY, &fromsnap); + error = dmu_objset_hold(buf, FTAG, &fromsnap); kmem_free(buf, MAXPATHLEN); if (error) { - dmu_objset_close(tosnap); + dmu_objset_rele(tosnap, FTAG); return (error); } } fp = getf(zc->zc_cookie); if (fp == NULL) { - dmu_objset_close(tosnap); + dmu_objset_rele(tosnap, FTAG); if (fromsnap) - dmu_objset_close(fromsnap); + dmu_objset_rele(fromsnap, FTAG); return (EBADF); } @@ -2900,8 +3619,8 @@ zfs_ioc_send(zfs_cmd_t *zc) fp->f_offset = off; releasef(zc->zc_cookie); if (fromsnap) - dmu_objset_close(fromsnap); - dmu_objset_close(tosnap); + dmu_objset_rele(fromsnap, FTAG); + dmu_objset_rele(tosnap, FTAG); return (error); } @@ -2977,16 +3696,38 @@ zfs_ioc_clear(zfs_cmd_t *zc) mutex_exit(&spa_namespace_lock); return (EIO); } - if (spa->spa_log_state == SPA_LOG_MISSING) { + if (spa_get_log_state(spa) == SPA_LOG_MISSING) { /* we need to let spa_open/spa_load clear the chains */ - spa->spa_log_state = SPA_LOG_CLEAR; + spa_set_log_state(spa, SPA_LOG_CLEAR); } + spa->spa_last_open_failed = 0; mutex_exit(&spa_namespace_lock); - if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) + if (zc->zc_cookie & ZPOOL_NO_REWIND) { + error = spa_open(zc->zc_name, &spa, FTAG); + } else { + nvlist_t *policy; + nvlist_t *config = NULL; + + if (zc->zc_nvlist_src == NULL) + return (EINVAL); + + if ((error = get_nvlist(zc->zc_nvlist_src, + zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { + error = spa_open_rewind(zc->zc_name, &spa, FTAG, + policy, &config); + if (config != NULL) { + (void) put_nvlist(zc, config); + nvlist_free(config); + } + nvlist_free(policy); + } + } + + if (error) return (error); - spa_vdev_state_enter(spa); + spa_vdev_state_enter(spa, SCL_NONE); if (zc->zc_guid == 0) { vd = NULL; @@ -3019,7 +3760,8 @@ zfs_ioc_clear(zfs_cmd_t *zc) * zc_name name of filesystem * zc_value name of origin snapshot * - * outputs: none + * outputs: + * zc_string name of conflicting snapshot, if there is one */ static int zfs_ioc_promote(zfs_cmd_t *zc) @@ -3035,7 +3777,7 @@ zfs_ioc_promote(zfs_cmd_t *zc) *cp = '\0'; (void) dmu_objset_find(zc->zc_value, zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); - return (dsl_dataset_promote(zc->zc_name)); + return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); } /* @@ -3059,7 +3801,7 @@ zfs_ioc_userspace_one(zfs_cmd_t *zc) if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) return (EINVAL); - error = zfsvfs_hold(zc->zc_name, B_TRUE, FTAG, &zfsvfs); + error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs); if (error) return (error); @@ -3085,13 +3827,15 @@ static int zfs_ioc_userspace_many(zfs_cmd_t *zc) { zfsvfs_t *zfsvfs; - int error; + int bufsize = zc->zc_nvlist_dst_size; - error = zfsvfs_hold(zc->zc_name, B_TRUE, FTAG, &zfsvfs); + if (bufsize <= 0) + return (ENOMEM); + + int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs); if (error) return (error); - int bufsize = zc->zc_nvlist_dst_size; void *buf = kmem_alloc(bufsize, KM_SLEEP); error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, @@ -3119,34 +3863,31 @@ static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) { objset_t *os; - int error; + int error = 0; zfsvfs_t *zfsvfs; if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { - if (!dmu_objset_userused_enabled(zfsvfs->z_os->os)) { + if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { /* * If userused is not enabled, it may be because the * objset needs to be closed & reopened (to grow the * objset_phys_t). Suspend/resume the fs will do that. */ - int mode; - error = zfs_suspend_fs(zfsvfs, NULL, &mode); - if (error == 0) { - error = zfs_resume_fs(zfsvfs, - zc->zc_name, mode); - } + error = zfs_suspend_fs(zfsvfs); + if (error == 0) + error = zfs_resume_fs(zfsvfs, zc->zc_name); } if (error == 0) error = dmu_objset_userspace_upgrade(zfsvfs->z_os); VFS_RELE(zfsvfs->z_vfs); } else { - error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, - DS_MODE_USER, &os); + /* XXX kind of reading contents without owning */ + error = dmu_objset_hold(zc->zc_name, FTAG, &os); if (error) return (error); error = dmu_objset_userspace_upgrade(os); - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); } return (error); @@ -3414,6 +4155,7 @@ zfs_ioc_smb_acl(zfs_cmd_t *zc) VN_RELE(vp); VN_RELE(ZTOV(sharedir)); ZFS_EXIT(zfsvfs); + nvlist_free(nvlist); return (error); } error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, @@ -3444,6 +4186,7 @@ zfs_ioc_smb_acl(zfs_cmd_t *zc) * zc_value short name of snap * zc_string user-supplied tag for this reference * zc_cookie recursive flag + * zc_temphold set if hold is temporary * * outputs: none */ @@ -3456,7 +4199,7 @@ zfs_ioc_hold(zfs_cmd_t *zc) return (EINVAL); return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value, - zc->zc_string, recursive)); + zc->zc_string, recursive, zc->zc_temphold)); } /* @@ -3521,7 +4264,7 @@ static zfs_ioc_vec_t zfs_ioc_vec[] = { B_FALSE }, { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE, B_FALSE }, - { zfs_ioc_pool_scrub, zfs_secpolicy_config, POOL_NAME, B_TRUE, + { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE, B_TRUE }, { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE, B_FALSE }, @@ -3544,18 +4287,14 @@ static zfs_ioc_vec_t zfs_ioc_vec[] = { { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE, B_TRUE }, { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE, - B_FALSE }, + B_TRUE }, { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE, B_FALSE }, { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, - B_FALSE }, + B_TRUE }, { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, - B_FALSE }, + B_TRUE }, { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE, B_TRUE }, - { zfs_ioc_create_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE, - B_FALSE }, - { zfs_ioc_remove_minor, zfs_secpolicy_minor, DATASET_NAME, B_FALSE, - B_FALSE }, { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE, B_TRUE }, { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE, B_TRUE}, @@ -3575,8 +4314,8 @@ static zfs_ioc_vec_t zfs_ioc_vec[] = { { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE, B_FALSE }, { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE, B_TRUE }, - { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE, - B_TRUE }, + { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, DATASET_NAME, + B_TRUE, B_TRUE }, { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE, B_TRUE }, { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_config, POOL_NAME, B_FALSE, @@ -3591,8 +4330,6 @@ static zfs_ioc_vec_t zfs_ioc_vec[] = { B_TRUE }, { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE, B_FALSE }, - { zfs_ioc_iscsi_perm_check, zfs_secpolicy_iscsi, DATASET_NAME, B_FALSE, - B_FALSE }, { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE, B_FALSE }, { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE, B_TRUE }, @@ -3608,6 +4345,10 @@ static zfs_ioc_vec_t zfs_ioc_vec[] = { { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE, B_TRUE }, { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE, + B_TRUE }, + { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE, + B_FALSE }, + { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE, B_TRUE } }; @@ -3647,8 +4388,10 @@ zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); + if (error != 0) + error = EFAULT; - if (error == 0) + if ((error == 0) && !(flag & FKIOCTL)) error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr); /* @@ -3685,7 +4428,8 @@ zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); if (error == 0) { - error = rc; + if (rc != 0) + error = EFAULT; if (zfs_ioc_vec[vec].zvec_his_log) zfs_log_history(zc); } diff --git a/module/zfs/zfs_log.c b/module/zfs/zfs_log.c index 3f0b6b0ed..bf9f37bca 100644 --- a/module/zfs/zfs_log.c +++ b/module/zfs/zfs_log.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -47,14 +47,6 @@ #include <sys/ddi.h> #include <sys/dsl_dataset.h> -#define ZFS_HANDLE_REPLAY(zilog, tx) \ - if (zilog->zl_replay) { \ - dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); \ - zilog->zl_replayed_seq[dmu_tx_get_txg(tx) & TXG_MASK] = \ - zilog->zl_replaying_seq; \ - return; \ - } - /* * These zfs_log_* functions must be called within a dmu tx, in one * of 2 contexts depending on zilog->z_replay: @@ -175,6 +167,9 @@ zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); + if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) + *attrs |= (xoap->xoa_reparse == 0) ? 0 : + XAT0_REPARSE; } static void * @@ -248,11 +243,9 @@ zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, size_t namesize = strlen(name) + 1; size_t fuidsz = 0; - if (zilog == NULL) + if (zil_replaying(zilog, tx)) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - /* * If we have FUIDs present then add in space for * domains and ACE fuid's if any. @@ -283,21 +276,25 @@ zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, lr = (lr_create_t *)&itx->itx_lr; lr->lr_doid = dzp->z_id; lr->lr_foid = zp->z_id; - lr->lr_mode = zp->z_phys->zp_mode; - if (!IS_EPHEMERAL(zp->z_phys->zp_uid)) { - lr->lr_uid = (uint64_t)zp->z_phys->zp_uid; + lr->lr_mode = zp->z_mode; + if (!IS_EPHEMERAL(zp->z_uid)) { + lr->lr_uid = (uint64_t)zp->z_uid; } else { lr->lr_uid = fuidp->z_fuid_owner; } - if (!IS_EPHEMERAL(zp->z_phys->zp_gid)) { - lr->lr_gid = (uint64_t)zp->z_phys->zp_gid; + if (!IS_EPHEMERAL(zp->z_gid)) { + lr->lr_gid = (uint64_t)zp->z_gid; } else { lr->lr_gid = fuidp->z_fuid_group; } - lr->lr_gen = zp->z_phys->zp_gen; - lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; - lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; - lr->lr_rdev = zp->z_phys->zp_rdev; + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, + sizeof (uint64_t)); + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), + lr->lr_crtime, sizeof (uint64_t) * 2); + + if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev, + sizeof (lr->lr_rdev)) != 0) + lr->lr_rdev = 0; /* * Fill in xvattr info if any @@ -353,11 +350,9 @@ zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, lr_remove_t *lr; size_t namesize = strlen(name) + 1; - if (zilog == NULL) + if (zil_replaying(zilog, tx)) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - itx = zil_itx_create(txtype, sizeof (*lr) + namesize); lr = (lr_remove_t *)&itx->itx_lr; lr->lr_doid = dzp->z_id; @@ -379,11 +374,9 @@ zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, lr_link_t *lr; size_t namesize = strlen(name) + 1; - if (zilog == NULL) + if (zil_replaying(zilog, tx)) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - itx = zil_itx_create(txtype, sizeof (*lr) + namesize); lr = (lr_link_t *)&itx->itx_lr; lr->lr_doid = dzp->z_id; @@ -408,21 +401,20 @@ zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, size_t namesize = strlen(name) + 1; size_t linksize = strlen(link) + 1; - if (zilog == NULL) + if (zil_replaying(zilog, tx)) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); lr = (lr_create_t *)&itx->itx_lr; lr->lr_doid = dzp->z_id; lr->lr_foid = zp->z_id; - lr->lr_mode = zp->z_phys->zp_mode; - lr->lr_uid = zp->z_phys->zp_uid; - lr->lr_gid = zp->z_phys->zp_gid; - lr->lr_gen = zp->z_phys->zp_gen; - lr->lr_crtime[0] = zp->z_phys->zp_crtime[0]; - lr->lr_crtime[1] = zp->z_phys->zp_crtime[1]; + lr->lr_uid = zp->z_uid; + lr->lr_gid = zp->z_gid; + lr->lr_mode = zp->z_mode; + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, + sizeof (uint64_t)); + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), + lr->lr_crtime, sizeof (uint64_t) * 2); bcopy(name, (char *)(lr + 1), namesize); bcopy(link, (char *)(lr + 1) + namesize, linksize); @@ -444,11 +436,9 @@ zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, size_t snamesize = strlen(sname) + 1; size_t dnamesize = strlen(dname) + 1; - if (zilog == NULL) + if (zil_replaying(zilog, tx)) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); lr = (lr_rename_t *)&itx->itx_lr; lr->lr_sdoid = sdzp->z_id; @@ -474,14 +464,17 @@ zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, itx_wr_state_t write_state; boolean_t slogging; uintptr_t fsync_cnt; + ssize_t immediate_write_sz; - if (zilog == NULL || zp->z_unlinked) + if (zil_replaying(zilog, tx) || zp->z_unlinked) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ + immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) + ? 0 : zfs_immediate_write_sz; - slogging = spa_has_slogs(zilog->zl_spa); - if (resid > zfs_immediate_write_sz && !slogging && resid <= zp->z_blksz) + slogging = spa_has_slogs(zilog->zl_spa) && + (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); + if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) write_state = WR_INDIRECT; else if (ioflag & (FSYNC | FDSYNC)) write_state = WR_COPIED; @@ -510,8 +503,7 @@ zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, lr = (lr_write_t *)&itx->itx_lr; if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { - kmem_free(itx, offsetof(itx_t, itx_lr) + - itx->itx_lr.lrc_reclen); + zil_itx_destroy(itx); itx = zil_itx_create(txtype, sizeof (*lr)); lr = (lr_write_t *)&itx->itx_lr; write_state = WR_NEED_COPY; @@ -552,11 +544,9 @@ zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, uint64_t seq; lr_truncate_t *lr; - if (zilog == NULL || zp->z_unlinked) + if (zil_replaying(zilog, tx) || zp->z_unlinked) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - itx = zil_itx_create(txtype, sizeof (*lr)); lr = (lr_truncate_t *)&itx->itx_lr; lr->lr_foid = zp->z_id; @@ -582,12 +572,9 @@ zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, size_t recsize = sizeof (lr_setattr_t); void *start; - - if (zilog == NULL || zp->z_unlinked) + if (zil_replaying(zilog, tx) || zp->z_unlinked) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - /* * If XVATTR set, then log record size needs to allow * for lr_attr_t + xvattr mask, mapsize and create time @@ -651,11 +638,9 @@ zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, size_t txsize; size_t aclbytes = vsecp->vsa_aclentsz; - if (zilog == NULL || zp->z_unlinked) + if (zil_replaying(zilog, tx) || zp->z_unlinked) return; - ZFS_HANDLE_REPLAY(zilog, tx); /* exits if replay */ - txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? TX_ACL_V0 : TX_ACL; diff --git a/module/zfs/zfs_replay.c b/module/zfs/zfs_replay.c index 85b79703a..f26009b02 100644 --- a/module/zfs/zfs_replay.c +++ b/module/zfs/zfs_replay.c @@ -19,12 +19,10 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/types.h> #include <sys/param.h> #include <sys/systm.h> @@ -129,6 +127,8 @@ zfs_replay_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) ZFS_TIME_DECODE(&xoap->xoa_createtime, crtime); if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) bcopy(scanstamp, xoap->xoa_av_scanstamp, AV_SCANSTAMP_SZ); + if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) + xoap->xoa_reparse = ((*attrs & XAT0_REPARSE) != 0); } static int @@ -275,9 +275,9 @@ zfs_replay_create_acl(zfsvfs_t *zfsvfs, uint64_t txtype; int error; + txtype = (lr->lr_common.lrc_txtype & ~TX_CI); if (byteswap) { byteswap_uint64_array(lracl, sizeof (*lracl)); - txtype = (int)lr->lr_common.lrc_txtype; if (txtype == TX_CREATE_ACL_ATTR || txtype == TX_MKDIR_ACL_ATTR) { lrattr = (lr_attr_t *)(caddr_t)(lracl + 1); @@ -318,7 +318,7 @@ zfs_replay_create_acl(zfsvfs_t *zfsvfs, if (lr->lr_common.lrc_txtype & TX_CI) vflg |= FIGNORECASE; - switch ((int)lr->lr_common.lrc_txtype) { + switch (txtype) { case TX_CREATE_ACL: aclstart = (caddr_t)(lracl + 1); fuidstart = (caddr_t)aclstart + @@ -391,7 +391,8 @@ bail: VN_RELE(ZTOV(dzp)); - zfs_fuid_info_free(zfsvfs->z_fuid_replay); + if (zfsvfs->z_fuid_replay) + zfs_fuid_info_free(zfsvfs->z_fuid_replay); zfsvfs->z_fuid_replay = NULL; return (error); @@ -413,9 +414,9 @@ zfs_replay_create(zfsvfs_t *zfsvfs, lr_create_t *lr, boolean_t byteswap) uint64_t txtype; int error; + txtype = (lr->lr_common.lrc_txtype & ~TX_CI); if (byteswap) { byteswap_uint64_array(lr, sizeof (*lr)); - txtype = (int)lr->lr_common.lrc_txtype; if (txtype == TX_CREATE_ATTR || txtype == TX_MKDIR_ATTR) zfs_replay_swap_attrs((lr_attr_t *)(lr + 1)); } @@ -460,7 +461,7 @@ zfs_replay_create(zfsvfs_t *zfsvfs, lr_create_t *lr, boolean_t byteswap) lr->lr_uid, lr->lr_gid); } - switch ((int)lr->lr_common.lrc_txtype) { + switch (txtype) { case TX_CREATE_ATTR: lrattr = (lr_attr_t *)(caddr_t)(lr + 1); xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize); @@ -498,7 +499,6 @@ zfs_replay_create(zfsvfs_t *zfsvfs, lr_create_t *lr, boolean_t byteswap) &vp, kcred, NULL, vflg, NULL); break; case TX_MKXATTR: - name = (char *)(lr + 1); error = zfs_make_xattrdir(dzp, &xva.xva_vattr, &vp, kcred); break; case TX_SYMLINK: @@ -625,6 +625,7 @@ zfs_replay_write(zfsvfs_t *zfsvfs, lr_write_t *lr, boolean_t byteswap) znode_t *zp; int error; ssize_t resid; + uint64_t orig_eof, eod, offset, length; if (byteswap) byteswap_uint64_array(lr, sizeof (*lr)); @@ -640,8 +641,64 @@ zfs_replay_write(zfsvfs_t *zfsvfs, lr_write_t *lr, boolean_t byteswap) return (error); } - error = vn_rdwr(UIO_WRITE, ZTOV(zp), data, lr->lr_length, - lr->lr_offset, UIO_SYSSPACE, 0, RLIM64_INFINITY, kcred, &resid); + offset = lr->lr_offset; + length = lr->lr_length; + eod = offset + length; /* end of data for this write */ + + orig_eof = zp->z_size; + + /* If it's a dmu_sync() block, write the whole block */ + if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) { + uint64_t blocksize = BP_GET_LSIZE(&lr->lr_blkptr); + if (length < blocksize) { + offset -= offset % blocksize; + length = blocksize; + } + } + + error = vn_rdwr(UIO_WRITE, ZTOV(zp), data, length, offset, + UIO_SYSSPACE, 0, RLIM64_INFINITY, kcred, &resid); + + /* + * This may be a write from a dmu_sync() for a whole block, + * and may extend beyond the current end of the file. + * We can't just replay what was written for this TX_WRITE as + * a future TX_WRITE2 may extend the eof and the data for that + * write needs to be there. So we write the whole block and + * reduce the eof. + */ + if (orig_eof < zp->z_size) /* file length grew ? */ + zp->z_size = eod; + + VN_RELE(ZTOV(zp)); + + return (error); +} + +/* + * TX_WRITE2 are only generated when dmu_sync() returns EALREADY + * meaning the pool block is already being synced. So now that we always write + * out full blocks, all we have to do is expand the eof if + * the file is grown. + */ +static int +zfs_replay_write2(zfsvfs_t *zfsvfs, lr_write_t *lr, boolean_t byteswap) +{ + znode_t *zp; + int error; + uint64_t end; + + if (byteswap) + byteswap_uint64_array(lr, sizeof (*lr)); + + if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) + return (error); + + end = lr->lr_offset + lr->lr_length; + if (end > zp->z_size) { + ASSERT3U(end - zp->z_size, <, zp->z_blksz); + zp->z_size = end; + } VN_RELE(ZTOV(zp)); @@ -658,16 +715,8 @@ zfs_replay_truncate(zfsvfs_t *zfsvfs, lr_truncate_t *lr, boolean_t byteswap) if (byteswap) byteswap_uint64_array(lr, sizeof (*lr)); - if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) { - /* - * As we can log truncates out of order, it's possible the - * file has been removed. In this case just drop the truncate - * and return success. - */ - if (error == ENOENT) - error = 0; + if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) return (error); - } bzero(&fl, sizeof (fl)); fl.l_type = F_WRLCK; @@ -701,16 +750,8 @@ zfs_replay_setattr(zfsvfs_t *zfsvfs, lr_setattr_t *lr, boolean_t byteswap) zfs_replay_swap_attrs((lr_attr_t *)(lr + 1)); } - if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) { - /* - * As we can log setattrs out of order, it's possible the - * file has been removed. In this case just drop the setattr - * and return success. - */ - if (error == ENOENT) - error = 0; + if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) return (error); - } zfs_init_vattr(vap, lr->lr_mask, lr->lr_mode, lr->lr_uid, lr->lr_gid, 0, lr->lr_foid); @@ -756,16 +797,8 @@ zfs_replay_acl_v0(zfsvfs_t *zfsvfs, lr_acl_v0_t *lr, boolean_t byteswap) zfs_oldace_byteswap(ace, lr->lr_aclcnt); } - if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) { - /* - * As we can log acls out of order, it's possible the - * file has been removed. In this case just drop the acl - * and return success. - */ - if (error == ENOENT) - error = 0; + if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) return (error); - } bzero(&vsa, sizeof (vsa)); vsa.vsa_mask = VSA_ACE | VSA_ACECNT; @@ -813,16 +846,8 @@ zfs_replay_acl(zfsvfs_t *zfsvfs, lr_acl_t *lr, boolean_t byteswap) } } - if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) { - /* - * As we can log acls out of order, it's possible the - * file has been removed. In this case just drop the acl - * and return success. - */ - if (error == ENOENT) - error = 0; + if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) return (error); - } bzero(&vsa, sizeof (vsa)); vsa.vsa_mask = VSA_ACE | VSA_ACECNT | VSA_ACE_ACLFLAGS; @@ -875,4 +900,5 @@ zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE] = { zfs_replay_create_acl, /* TX_MKDIR_ACL */ zfs_replay_create, /* TX_MKDIR_ATTR */ zfs_replay_create_acl, /* TX_MKDIR_ACL_ATTR */ + zfs_replay_write2, /* TX_WRITE2 */ }; diff --git a/module/zfs/zfs_rlock.c b/module/zfs/zfs_rlock.c index 4de8d8a2d..7fd8f6020 100644 --- a/module/zfs/zfs_rlock.c +++ b/module/zfs/zfs_rlock.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -112,7 +112,7 @@ zfs_range_lock_writer(znode_t *zp, rl_t *new) * Range locking is also used by zvol and uses a * dummied up znode. However, for zvol, we don't need to * append or grow blocksize, and besides we don't have - * a z_phys or z_zfsvfs - so skip that processing. + * a "sa" data or z_zfsvfs - so skip that processing. * * Yes, this is ugly, and would be solved by not handling * grow or append in range lock code. If that was done then @@ -125,14 +125,14 @@ zfs_range_lock_writer(znode_t *zp, rl_t *new) * This is done under z_range_lock to avoid races. */ if (new->r_type == RL_APPEND) - new->r_off = zp->z_phys->zp_size; + new->r_off = zp->z_size; /* * If we need to grow the block size then grab the whole * file range. This is also done under z_range_lock to * avoid races. */ - end_size = MAX(zp->z_phys->zp_size, new->r_off + len); + end_size = MAX(zp->z_size, new->r_off + len); if (end_size > zp->z_blksz && (!ISP2(zp->z_blksz) || zp->z_blksz < zp->z_zfsvfs->z_max_blksz)) { new->r_off = 0; diff --git a/module/zfs/zfs_sa.c b/module/zfs/zfs_sa.c new file mode 100644 index 000000000..73a40aa4f --- /dev/null +++ b/module/zfs/zfs_sa.c @@ -0,0 +1,312 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/vnode.h> +#include <sys/sa.h> +#include <sys/zfs_acl.h> +#include <sys/zfs_sa.h> + +/* + * ZPL attribute registration table. + * Order of attributes doesn't matter + * a unique value will be assigned for each + * attribute that is file system specific + * + * This is just the set of ZPL attributes that this + * version of ZFS deals with natively. The file system + * could have other attributes stored in files, but they will be + * ignored. The SA framework will preserve them, just that + * this version of ZFS won't change or delete them. + */ + +sa_attr_reg_t zfs_attr_table[ZPL_END+1] = { + {"ZPL_ATIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 0}, + {"ZPL_MTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 1}, + {"ZPL_CTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 2}, + {"ZPL_CRTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 3}, + {"ZPL_GEN", sizeof (uint64_t), SA_UINT64_ARRAY, 4}, + {"ZPL_MODE", sizeof (uint64_t), SA_UINT64_ARRAY, 5}, + {"ZPL_SIZE", sizeof (uint64_t), SA_UINT64_ARRAY, 6}, + {"ZPL_PARENT", sizeof (uint64_t), SA_UINT64_ARRAY, 7}, + {"ZPL_LINKS", sizeof (uint64_t), SA_UINT64_ARRAY, 8}, + {"ZPL_XATTR", sizeof (uint64_t), SA_UINT64_ARRAY, 9}, + {"ZPL_RDEV", sizeof (uint64_t), SA_UINT64_ARRAY, 10}, + {"ZPL_FLAGS", sizeof (uint64_t), SA_UINT64_ARRAY, 11}, + {"ZPL_UID", sizeof (uint64_t), SA_UINT64_ARRAY, 12}, + {"ZPL_GID", sizeof (uint64_t), SA_UINT64_ARRAY, 13}, + {"ZPL_PAD", sizeof (uint64_t) * 4, SA_UINT64_ARRAY, 14}, + {"ZPL_ZNODE_ACL", 88, SA_UINT8_ARRAY, 15}, + {"ZPL_DACL_COUNT", sizeof (uint64_t), SA_UINT64_ARRAY, 0}, + {"ZPL_SYMLINK", 0, SA_UINT8_ARRAY, 0}, + {"ZPL_SCANSTAMP", 32, SA_UINT8_ARRAY, 0}, + {"ZPL_DACL_ACES", 0, SA_ACL, 0}, + {NULL, 0, 0, 0} +}; + +#ifdef _KERNEL + +int +zfs_sa_readlink(znode_t *zp, uio_t *uio) +{ + dmu_buf_t *db = sa_get_db(zp->z_sa_hdl); + size_t bufsz; + int error; + + bufsz = zp->z_size; + if (bufsz + ZFS_OLD_ZNODE_PHYS_SIZE <= db->db_size) { + error = uiomove((caddr_t)db->db_data + + ZFS_OLD_ZNODE_PHYS_SIZE, + MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio); + } else { + dmu_buf_t *dbp; + if ((error = dmu_buf_hold(zp->z_zfsvfs->z_os, zp->z_id, + 0, FTAG, &dbp, DMU_READ_NO_PREFETCH)) == 0) { + error = uiomove(dbp->db_data, + MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio); + dmu_buf_rele(dbp, FTAG); + } + } + return (error); +} + +void +zfs_sa_symlink(znode_t *zp, char *link, int len, dmu_tx_t *tx) +{ + dmu_buf_t *db = sa_get_db(zp->z_sa_hdl); + + if (ZFS_OLD_ZNODE_PHYS_SIZE + len <= dmu_bonus_max()) { + VERIFY(dmu_set_bonus(db, + len + ZFS_OLD_ZNODE_PHYS_SIZE, tx) == 0); + if (len) { + bcopy(link, (caddr_t)db->db_data + + ZFS_OLD_ZNODE_PHYS_SIZE, len); + } + } else { + dmu_buf_t *dbp; + + zfs_grow_blocksize(zp, len, tx); + VERIFY(0 == dmu_buf_hold(zp->z_zfsvfs->z_os, + zp->z_id, 0, FTAG, &dbp, DMU_READ_NO_PREFETCH)); + + dmu_buf_will_dirty(dbp, tx); + + ASSERT3U(len, <=, dbp->db_size); + bcopy(link, dbp->db_data, len); + dmu_buf_rele(dbp, FTAG); + } +} + +void +zfs_sa_get_scanstamp(znode_t *zp, xvattr_t *xvap) +{ + zfsvfs_t *zfsvfs = zp->z_zfsvfs; + xoptattr_t *xoap; + + VERIFY((xoap = xva_getxoptattr(xvap)) != NULL); + if (zp->z_is_sa) { + if (sa_lookup(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs), + &xoap->xoa_av_scanstamp, + sizeof (xoap->xoa_av_scanstamp)) != 0) + return; + } else { + dmu_object_info_t doi; + dmu_buf_t *db = sa_get_db(zp->z_sa_hdl); + int len; + + if (!(zp->z_pflags & ZFS_BONUS_SCANSTAMP)) + return; + + sa_object_info(zp->z_sa_hdl, &doi); + len = sizeof (xoap->xoa_av_scanstamp) + + ZFS_OLD_ZNODE_PHYS_SIZE; + + if (len <= doi.doi_bonus_size) { + (void) memcpy(xoap->xoa_av_scanstamp, + (caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE, + sizeof (xoap->xoa_av_scanstamp)); + } + } + XVA_SET_RTN(xvap, XAT_AV_SCANSTAMP); +} + +void +zfs_sa_set_scanstamp(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx) +{ + zfsvfs_t *zfsvfs = zp->z_zfsvfs; + xoptattr_t *xoap; + + VERIFY((xoap = xva_getxoptattr(xvap)) != NULL); + if (zp->z_is_sa) + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs), + &xoap->xoa_av_scanstamp, + sizeof (xoap->xoa_av_scanstamp), tx)); + else { + dmu_object_info_t doi; + dmu_buf_t *db = sa_get_db(zp->z_sa_hdl); + int len; + + sa_object_info(zp->z_sa_hdl, &doi); + len = sizeof (xoap->xoa_av_scanstamp) + + ZFS_OLD_ZNODE_PHYS_SIZE; + if (len > doi.doi_bonus_size) + VERIFY(dmu_set_bonus(db, len, tx) == 0); + (void) memcpy((caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE, + xoap->xoa_av_scanstamp, sizeof (xoap->xoa_av_scanstamp)); + + zp->z_pflags |= ZFS_BONUS_SCANSTAMP; + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zfsvfs), + &zp->z_pflags, sizeof (uint64_t), tx)); + } +} + +/* + * I'm not convinced we should do any of this upgrade. + * since the SA code can read both old/new znode formats + * with probably little to know performance difference. + * + * All new files will be created with the new format. + */ + +void +zfs_sa_upgrade(sa_handle_t *hdl, dmu_tx_t *tx) +{ + dmu_buf_t *db = sa_get_db(hdl); + znode_t *zp = sa_get_userdata(hdl); + zfsvfs_t *zfsvfs = zp->z_zfsvfs; + sa_bulk_attr_t bulk[20]; + int count = 0; + sa_bulk_attr_t sa_attrs[20] = { 0 }; + zfs_acl_locator_cb_t locate = { 0 }; + uint64_t uid, gid, mode, rdev, xattr, parent; + uint64_t crtime[2], mtime[2], ctime[2]; + zfs_acl_phys_t znode_acl; + char scanstamp[AV_SCANSTAMP_SZ]; + + /* + * No upgrade if ACL isn't cached + * since we won't know which locks are held + * and ready the ACL would require special "locked" + * interfaces that would be messy + */ + if (zp->z_acl_cached == NULL || ZTOV(zp)->v_type == VLNK) + return; + + /* First do a bulk query of the attributes that aren't cached */ + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CRTIME(zfsvfs), NULL, &crtime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL, &parent, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_XATTR(zfsvfs), NULL, &xattr, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_RDEV(zfsvfs), NULL, &rdev, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, &uid, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, &gid, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ZNODE_ACL(zfsvfs), NULL, + &znode_acl, 88); + + if (sa_bulk_lookup_locked(hdl, bulk, count) != 0) + return; + + + /* + * While the order here doesn't matter its best to try and organize + * it is such a way to pick up an already existing layout number + */ + count = 0; + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_SIZE(zfsvfs), NULL, + &zp->z_size, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_GEN(zfsvfs), + NULL, &zp->z_gen, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_UID(zfsvfs), NULL, &uid, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_GID(zfsvfs), NULL, &gid, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_PARENT(zfsvfs), + NULL, &parent, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_ATIME(zfsvfs), NULL, + zp->z_atime, 16); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_MTIME(zfsvfs), NULL, + &mtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_CTIME(zfsvfs), NULL, + &ctime, 16); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_CRTIME(zfsvfs), NULL, + &crtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_LINKS(zfsvfs), NULL, + &zp->z_links, 8); + if (zp->z_vnode->v_type == VBLK || zp->z_vnode->v_type == VCHR) + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_RDEV(zfsvfs), NULL, + &rdev, 8); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_DACL_COUNT(zfsvfs), NULL, + &zp->z_acl_cached->z_acl_count, 8); + + if (zp->z_acl_cached->z_version < ZFS_ACL_VERSION_FUID) + zfs_acl_xform(zp, zp->z_acl_cached, CRED()); + + locate.cb_aclp = zp->z_acl_cached; + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_DACL_ACES(zfsvfs), + zfs_acl_data_locator, &locate, zp->z_acl_cached->z_acl_bytes); + if (xattr) + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_RDEV(zfsvfs), + NULL, &rdev, 8); + + /* if scanstamp then add scanstamp */ + + if (zp->z_pflags & ZFS_BONUS_SCANSTAMP) { + bcopy((caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE, + scanstamp, AV_SCANSTAMP_SZ); + SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_SCANSTAMP(zfsvfs), + NULL, scanstamp, AV_SCANSTAMP_SZ); + zp->z_pflags &= ~ZFS_BONUS_SCANSTAMP; + } + + VERIFY(dmu_set_bonustype(db, DMU_OT_SA, tx) == 0); + VERIFY(sa_replace_all_by_template_locked(hdl, sa_attrs, + count, tx) == 0); + if (znode_acl.z_acl_extern_obj) + VERIFY(0 == dmu_object_free(zfsvfs->z_os, + znode_acl.z_acl_extern_obj, tx)); + + zp->z_is_sa = B_TRUE; +} + +void +zfs_sa_upgrade_txholds(dmu_tx_t *tx, znode_t *zp) +{ + if (!zp->z_zfsvfs->z_use_sa || zp->z_is_sa) + return; + + ASSERT(!zp->z_is_sa); + + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); + + if (ZFS_EXTERNAL_ACL(zp)) { + dmu_tx_hold_free(tx, ZFS_EXTERNAL_ACL(zp), 0, + DMU_OBJECT_END); + } +} + +#endif diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c index d03f92ba0..f68dde85f 100644 --- a/module/zfs/zfs_vfsops.c +++ b/module/zfs/zfs_vfsops.c @@ -19,10 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #include <sys/types.h> #include <sys/param.h> #include <sys/systm.h> @@ -46,6 +47,7 @@ #include <sys/dsl_deleg.h> #include <sys/spa.h> #include <sys/zap.h> +#include <sys/sa.h> #include <sys/varargs.h> #include <sys/policy.h> #include <sys/atomic.h> @@ -60,6 +62,8 @@ #include <sys/dnlc.h> #include <sys/dmu_objset.h> #include <sys/spa_boot.h> +#include <sys/sa.h> +#include "zfs_comutil.h" int zfsfstype; vfsops_t *zfs_vfsops = NULL; @@ -163,8 +167,7 @@ zfs_sync(vfs_t *vfsp, short flag, cred_t *cr) if (zfsvfs->z_log != NULL) zil_commit(zfsvfs->z_log, UINT64_MAX, 0); - else - txg_wait_synced(dp, 0); + ZFS_EXIT(zfsvfs); } else { /* @@ -381,14 +384,6 @@ vscan_changed_cb(void *arg, uint64_t newval) } static void -acl_mode_changed_cb(void *arg, uint64_t newval) -{ - zfsvfs_t *zfsvfs = arg; - - zfsvfs->z_acl_mode = newval; -} - -static void acl_inherit_changed_cb(void *arg, uint64_t newval) { zfsvfs_t *zfsvfs = arg; @@ -518,8 +513,6 @@ zfs_register_callbacks(vfs_t *vfsp) error = error ? error : dsl_prop_register(ds, "snapdir", snapdir_changed_cb, zfsvfs); error = error ? error : dsl_prop_register(ds, - "aclmode", acl_mode_changed_cb, zfsvfs); - error = error ? error : dsl_prop_register(ds, "aclinherit", acl_inherit_changed_cb, zfsvfs); error = error ? error : dsl_prop_register(ds, "vscan", vscan_changed_cb, zfsvfs); @@ -560,7 +553,6 @@ unregister: (void) dsl_prop_unregister(ds, "setuid", setuid_changed_cb, zfsvfs); (void) dsl_prop_unregister(ds, "exec", exec_changed_cb, zfsvfs); (void) dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, zfsvfs); - (void) dsl_prop_unregister(ds, "aclmode", acl_mode_changed_cb, zfsvfs); (void) dsl_prop_unregister(ds, "aclinherit", acl_inherit_changed_cb, zfsvfs); (void) dsl_prop_unregister(ds, "vscan", vscan_changed_cb, zfsvfs); @@ -568,69 +560,59 @@ unregister: } -static void -uidacct(objset_t *os, boolean_t isgroup, uint64_t fuid, - int64_t delta, dmu_tx_t *tx) -{ - uint64_t used = 0; - char buf[32]; - int err; - uint64_t obj = isgroup ? DMU_GROUPUSED_OBJECT : DMU_USERUSED_OBJECT; - - if (delta == 0) - return; - - (void) snprintf(buf, sizeof (buf), "%llx", (longlong_t)fuid); - err = zap_lookup(os, obj, buf, 8, 1, &used); - ASSERT(err == 0 || err == ENOENT); - /* no underflow/overflow */ - ASSERT(delta > 0 || used >= -delta); - ASSERT(delta < 0 || used + delta > used); - used += delta; - if (used == 0) - err = zap_remove(os, obj, buf, tx); - else - err = zap_update(os, obj, buf, 8, 1, &used, tx); - ASSERT(err == 0); -} - -static void -zfs_space_delta_cb(objset_t *os, dmu_object_type_t bonustype, - void *oldbonus, void *newbonus, - uint64_t oldused, uint64_t newused, dmu_tx_t *tx) +static int +zfs_space_delta_cb(dmu_object_type_t bonustype, void *data, + uint64_t *userp, uint64_t *groupp) { - znode_phys_t *oldznp = oldbonus; - znode_phys_t *newznp = newbonus; + znode_phys_t *znp = data; + int error = 0; - if (bonustype != DMU_OT_ZNODE) - return; + /* + * Is it a valid type of object to track? + */ + if (bonustype != DMU_OT_ZNODE && bonustype != DMU_OT_SA) + return (ENOENT); - /* We charge 512 for the dnode (if it's allocated). */ - if (oldznp->zp_gen != 0) - oldused += DNODE_SIZE; - if (newznp->zp_gen != 0) - newused += DNODE_SIZE; + /* + * If we have a NULL data pointer + * then assume the id's aren't changing and + * return EEXIST to the dmu to let it know to + * use the same ids + */ + if (data == NULL) + return (EEXIST); - if (oldznp->zp_uid == newznp->zp_uid) { - uidacct(os, B_FALSE, oldznp->zp_uid, newused-oldused, tx); + if (bonustype == DMU_OT_ZNODE) { + *userp = znp->zp_uid; + *groupp = znp->zp_gid; } else { - uidacct(os, B_FALSE, oldznp->zp_uid, -oldused, tx); - uidacct(os, B_FALSE, newznp->zp_uid, newused, tx); - } + int hdrsize; - if (oldznp->zp_gid == newznp->zp_gid) { - uidacct(os, B_TRUE, oldznp->zp_gid, newused-oldused, tx); - } else { - uidacct(os, B_TRUE, oldznp->zp_gid, -oldused, tx); - uidacct(os, B_TRUE, newznp->zp_gid, newused, tx); + ASSERT(bonustype == DMU_OT_SA); + hdrsize = sa_hdrsize(data); + + if (hdrsize != 0) { + *userp = *((uint64_t *)((uintptr_t)data + hdrsize + + SA_UID_OFFSET)); + *groupp = *((uint64_t *)((uintptr_t)data + hdrsize + + SA_GID_OFFSET)); + } else { + /* + * This should only happen for newly created + * files that haven't had the znode data filled + * in yet. + */ + *userp = 0; + *groupp = 0; + } } + return (error); } static void fuidstr_to_sid(zfsvfs_t *zfsvfs, const char *fuidstr, char *domainbuf, int buflen, uid_t *ridp) { - extern uint64_t strtonum(const char *str, char **nptr); uint64_t fuid; const char *domain; @@ -811,7 +793,7 @@ zfs_set_userquota(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type, } boolean_t -zfs_usergroup_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid) +zfs_fuid_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid) { char buf[32]; uint64_t used, quota, usedobj, quotaobj; @@ -834,33 +816,57 @@ zfs_usergroup_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid) return (used >= quota); } +boolean_t +zfs_owner_overquota(zfsvfs_t *zfsvfs, znode_t *zp, boolean_t isgroup) +{ + uint64_t fuid; + uint64_t quotaobj; + uid_t id; + + quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj; + + id = isgroup ? zp->z_gid : zp->z_uid; + + if (quotaobj == 0 || zfsvfs->z_replay) + return (B_FALSE); + + if (IS_EPHEMERAL(id)) { + VERIFY(0 == sa_lookup(zp->z_sa_hdl, + isgroup ? SA_ZPL_GID(zfsvfs) : SA_ZPL_UID(zfsvfs), + &fuid, sizeof (fuid))); + } else { + fuid = (uint64_t)id; + } + + return (zfs_fuid_overquota(zfsvfs, isgroup, fuid)); +} + int -zfsvfs_create(const char *osname, int mode, zfsvfs_t **zvp) +zfsvfs_create(const char *osname, zfsvfs_t **zfvp) { objset_t *os; zfsvfs_t *zfsvfs; uint64_t zval; int i, error; + uint64_t sa_obj; - if (error = dsl_prop_get_integer(osname, "readonly", &zval, NULL)) - return (error); - if (zval) - mode |= DS_MODE_READONLY; + zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP); - error = dmu_objset_open(osname, DMU_OST_ZFS, mode, &os); - if (error == EROFS) { - mode |= DS_MODE_READONLY; - error = dmu_objset_open(osname, DMU_OST_ZFS, mode, &os); - } - if (error) + /* + * We claim to always be readonly so we can open snapshots; + * other ZPL code will prevent us from writing to snapshots. + */ + error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, zfsvfs, &os); + if (error) { + kmem_free(zfsvfs, sizeof (zfsvfs_t)); return (error); + } /* * Initialize the zfs-specific filesystem structure. * Should probably make this a kmem cache, shuffle fields, * and just bzero up to z_hold_mtx[]. */ - zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP); zfsvfs->z_vfs = NULL; zfsvfs->z_parent = zfsvfs; zfsvfs->z_max_blksz = SPA_MAXBLOCKSIZE; @@ -870,15 +876,15 @@ zfsvfs_create(const char *osname, int mode, zfsvfs_t **zvp) error = zfs_get_zplprop(os, ZFS_PROP_VERSION, &zfsvfs->z_version); if (error) { goto out; - } else if (zfsvfs->z_version > ZPL_VERSION) { - (void) printf("Mismatched versions: File system " - "is version %llu on-disk format, which is " - "incompatible with this software version %lld!", - (u_longlong_t)zfsvfs->z_version, ZPL_VERSION); + } else if (zfsvfs->z_version > + zfs_zpl_version_map(spa_version(dmu_objset_spa(os)))) { + (void) printf("Can't mount a version %lld file system " + "on a version %lld pool\n. Pool must be upgraded to mount " + "this file system.", (u_longlong_t)zfsvfs->z_version, + (u_longlong_t)spa_version(dmu_objset_spa(os))); error = ENOTSUP; goto out; } - if ((error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &zval)) != 0) goto out; zfsvfs->z_norm = (int)zval; @@ -900,6 +906,26 @@ zfsvfs_create(const char *osname, int mode, zfsvfs_t **zvp) zfsvfs->z_norm |= U8_TEXTPREP_TOUPPER; zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os); + zfsvfs->z_use_sa = USE_SA(zfsvfs->z_version, zfsvfs->z_os); + + if (zfsvfs->z_use_sa) { + /* should either have both of these objects or none */ + error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1, + &sa_obj); + if (error) + return (error); + } else { + /* + * Pre SA versions file systems should never touch + * either the attribute registration or layout objects. + */ + sa_obj = 0; + } + + zfsvfs->z_attr_table = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END); + + if (zfsvfs->z_version >= ZPL_VERSION_SA) + sa_register_update_callback(os, zfs_sa_upgrade); error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &zfsvfs->z_root); @@ -944,12 +970,12 @@ zfsvfs_create(const char *osname, int mode, zfsvfs_t **zvp) for (i = 0; i != ZFS_OBJ_MTX_SZ; i++) mutex_init(&zfsvfs->z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL); - *zvp = zfsvfs; + *zfvp = zfsvfs; return (0); out: - dmu_objset_close(os); - *zvp = NULL; + dmu_objset_disown(os, zfsvfs); + *zfvp = NULL; kmem_free(zfsvfs, sizeof (zfsvfs_t)); return (error); } @@ -966,15 +992,11 @@ zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting) /* * Set the objset user_ptr to track its zfsvfs. */ - mutex_enter(&zfsvfs->z_os->os->os_user_ptr_lock); + mutex_enter(&zfsvfs->z_os->os_user_ptr_lock); dmu_objset_set_user(zfsvfs->z_os, zfsvfs); - mutex_exit(&zfsvfs->z_os->os->os_user_ptr_lock); + mutex_exit(&zfsvfs->z_os->os_user_ptr_lock); zfsvfs->z_log = zil_open(zfsvfs->z_os, zfs_get_data); - if (zil_disable) { - zil_destroy(zfsvfs->z_log, 0); - zfsvfs->z_log = NULL; - } /* * If we are not mounting (ie: online recv), then we don't @@ -994,34 +1016,36 @@ zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting) else zfs_unlinked_drain(zfsvfs); - if (zfsvfs->z_log) { - /* - * Parse and replay the intent log. - * - * Because of ziltest, this must be done after - * zfs_unlinked_drain(). (Further note: ziltest - * doesn't use readonly mounts, where - * zfs_unlinked_drain() isn't called.) This is because - * ziltest causes spa_sync() to think it's committed, - * but actually it is not, so the intent log contains - * many txg's worth of changes. - * - * In particular, if object N is in the unlinked set in - * the last txg to actually sync, then it could be - * actually freed in a later txg and then reallocated - * in a yet later txg. This would write a "create - * object N" record to the intent log. Normally, this - * would be fine because the spa_sync() would have - * written out the fact that object N is free, before - * we could write the "create object N" intent log - * record. - * - * But when we are in ziltest mode, we advance the "open - * txg" without actually spa_sync()-ing the changes to - * disk. So we would see that object N is still - * allocated and in the unlinked set, and there is an - * intent log record saying to allocate it. - */ + /* + * Parse and replay the intent log. + * + * Because of ziltest, this must be done after + * zfs_unlinked_drain(). (Further note: ziltest + * doesn't use readonly mounts, where + * zfs_unlinked_drain() isn't called.) This is because + * ziltest causes spa_sync() to think it's committed, + * but actually it is not, so the intent log contains + * many txg's worth of changes. + * + * In particular, if object N is in the unlinked set in + * the last txg to actually sync, then it could be + * actually freed in a later txg and then reallocated + * in a yet later txg. This would write a "create + * object N" record to the intent log. Normally, this + * would be fine because the spa_sync() would have + * written out the fact that object N is free, before + * we could write the "create object N" intent log + * record. + * + * But when we are in ziltest mode, we advance the "open + * txg" without actually spa_sync()-ing the changes to + * disk. So we would see that object N is still + * allocated and in the unlinked set, and there is an + * intent log record saying to allocate it. + */ + if (zil_replay_disable) { + zil_destroy(zfsvfs->z_log, B_FALSE); + } else { zfsvfs->z_replay = B_TRUE; zil_replay(zfsvfs->z_os, zfsvfs, zfs_replay_vector); zfsvfs->z_replay = B_FALSE; @@ -1070,7 +1094,9 @@ zfs_set_fuid_feature(zfsvfs_t *zfsvfs) vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACEMASKONACCESS); vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACLONCREATE); vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACCESS_FILTER); + vfs_set_feature(zfsvfs->z_vfs, VFSFT_REPARSE); } + zfsvfs->z_use_sa = USE_SA(zfsvfs->z_version, zfsvfs->z_os); } static int @@ -1084,7 +1110,7 @@ zfs_domount(vfs_t *vfsp, char *osname) ASSERT(vfsp); ASSERT(osname); - error = zfsvfs_create(osname, DS_MODE_OWNER, &zfsvfs); + error = zfsvfs_create(osname, &zfsvfs); if (error) return (error); zfsvfs->z_vfs = vfsp; @@ -1135,6 +1161,7 @@ zfs_domount(vfs_t *vfsp, char *osname) vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS); vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE); } + vfs_set_feature(vfsp, VFSFT_ZEROCOPY_SUPPORTED); if (dmu_objset_is_snapshot(zfsvfs->z_os)) { uint64_t pval; @@ -1146,9 +1173,9 @@ zfs_domount(vfs_t *vfsp, char *osname) xattr_changed_cb(zfsvfs, pval); zfsvfs->z_issnap = B_TRUE; - mutex_enter(&zfsvfs->z_os->os->os_user_ptr_lock); + mutex_enter(&zfsvfs->z_os->os_user_ptr_lock); dmu_objset_set_user(zfsvfs->z_os, zfsvfs); - mutex_exit(&zfsvfs->z_os->os->os_user_ptr_lock); + mutex_exit(&zfsvfs->z_os->os_user_ptr_lock); } else { error = zfsvfs_setup(zfsvfs, B_TRUE); } @@ -1157,7 +1184,7 @@ zfs_domount(vfs_t *vfsp, char *osname) zfsctl_create(zfsvfs); out: if (error) { - dmu_objset_close(zfsvfs->z_os); + dmu_objset_disown(zfsvfs->z_os, zfsvfs); zfsvfs_free(zfsvfs); } else { atomic_add_32(&zfs_active_fs_count, 1); @@ -1201,9 +1228,6 @@ zfs_unregister_callbacks(zfsvfs_t *zfsvfs) VERIFY(dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, zfsvfs) == 0); - VERIFY(dsl_prop_unregister(ds, "aclmode", acl_mode_changed_cb, - zfsvfs) == 0); - VERIFY(dsl_prop_unregister(ds, "aclinherit", acl_inherit_changed_cb, zfsvfs) == 0); @@ -1267,6 +1291,139 @@ zfs_parse_bootfs(char *bpath, char *outpath) return (error); } +/* + * zfs_check_global_label: + * Check that the hex label string is appropriate for the dataset + * being mounted into the global_zone proper. + * + * Return an error if the hex label string is not default or + * admin_low/admin_high. For admin_low labels, the corresponding + * dataset must be readonly. + */ +int +zfs_check_global_label(const char *dsname, const char *hexsl) +{ + if (strcasecmp(hexsl, ZFS_MLSLABEL_DEFAULT) == 0) + return (0); + if (strcasecmp(hexsl, ADMIN_HIGH) == 0) + return (0); + if (strcasecmp(hexsl, ADMIN_LOW) == 0) { + /* must be readonly */ + uint64_t rdonly; + + if (dsl_prop_get_integer(dsname, + zfs_prop_to_name(ZFS_PROP_READONLY), &rdonly, NULL)) + return (EACCES); + return (rdonly ? 0 : EACCES); + } + return (EACCES); +} + +/* + * zfs_mount_label_policy: + * Determine whether the mount is allowed according to MAC check. + * by comparing (where appropriate) label of the dataset against + * the label of the zone being mounted into. If the dataset has + * no label, create one. + * + * Returns: + * 0 : access allowed + * >0 : error code, such as EACCES + */ +static int +zfs_mount_label_policy(vfs_t *vfsp, char *osname) +{ + int error, retv; + zone_t *mntzone = NULL; + ts_label_t *mnt_tsl; + bslabel_t *mnt_sl; + bslabel_t ds_sl; + char ds_hexsl[MAXNAMELEN]; + + retv = EACCES; /* assume the worst */ + + /* + * Start by getting the dataset label if it exists. + */ + error = dsl_prop_get(osname, zfs_prop_to_name(ZFS_PROP_MLSLABEL), + 1, sizeof (ds_hexsl), &ds_hexsl, NULL); + if (error) + return (EACCES); + + /* + * If labeling is NOT enabled, then disallow the mount of datasets + * which have a non-default label already. No other label checks + * are needed. + */ + if (!is_system_labeled()) { + if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) == 0) + return (0); + return (EACCES); + } + + /* + * Get the label of the mountpoint. If mounting into the global + * zone (i.e. mountpoint is not within an active zone and the + * zoned property is off), the label must be default or + * admin_low/admin_high only; no other checks are needed. + */ + mntzone = zone_find_by_any_path(refstr_value(vfsp->vfs_mntpt), B_FALSE); + if (mntzone->zone_id == GLOBAL_ZONEID) { + uint64_t zoned; + + zone_rele(mntzone); + + if (dsl_prop_get_integer(osname, + zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) + return (EACCES); + if (!zoned) + return (zfs_check_global_label(osname, ds_hexsl)); + else + /* + * This is the case of a zone dataset being mounted + * initially, before the zone has been fully created; + * allow this mount into global zone. + */ + return (0); + } + + mnt_tsl = mntzone->zone_slabel; + ASSERT(mnt_tsl != NULL); + label_hold(mnt_tsl); + mnt_sl = label2bslabel(mnt_tsl); + + if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) == 0) { + /* + * The dataset doesn't have a real label, so fabricate one. + */ + char *str = NULL; + + if (l_to_str_internal(mnt_sl, &str) == 0 && + dsl_prop_set(osname, zfs_prop_to_name(ZFS_PROP_MLSLABEL), + ZPROP_SRC_LOCAL, 1, strlen(str) + 1, str) == 0) + retv = 0; + if (str != NULL) + kmem_free(str, strlen(str) + 1); + } else if (hexstr_to_label(ds_hexsl, &ds_sl) == 0) { + /* + * Now compare labels to complete the MAC check. If the + * labels are equal then allow access. If the mountpoint + * label dominates the dataset label, allow readonly access. + * Otherwise, access is denied. + */ + if (blequal(mnt_sl, &ds_sl)) + retv = 0; + else if (bldominates(mnt_sl, &ds_sl)) { + vfs_setmntopt(vfsp, MNTOPT_RO, NULL, 0); + retv = 0; + } + } + + label_rele(mnt_tsl); + zone_rele(mntzone); + return (retv); +} + static int zfs_mountroot(vfs_t *vfsp, enum whymountroot why) { @@ -1419,8 +1576,7 @@ zfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr) */ error = secpolicy_fs_mount(cr, mvp, vfsp); if (error) { - error = dsl_deleg_access(osname, ZFS_DELEG_PERM_MOUNT, cr); - if (error == 0) { + if (dsl_deleg_access(osname, ZFS_DELEG_PERM_MOUNT, cr) == 0) { vattr_t vattr; /* @@ -1430,16 +1586,14 @@ zfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr) vattr.va_mask = AT_UID; - if (error = VOP_GETATTR(mvp, &vattr, 0, cr, NULL)) { + if (VOP_GETATTR(mvp, &vattr, 0, cr, NULL)) { goto out; } if (secpolicy_vnode_owner(cr, vattr.va_uid) != 0 && VOP_ACCESS(mvp, VWRITE, 0, cr, NULL) != 0) { - error = EPERM; goto out; } - secpolicy_fs_mount_clearopts(cr, vfsp); } else { goto out; @@ -1456,6 +1610,10 @@ zfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr) goto out; } + error = zfs_mount_label_policy(vfsp, osname); + if (error) + goto out; + /* * When doing a remount, we simply refresh our temporary properties * according to those options set in the current VFS options. @@ -1617,7 +1775,7 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting) mutex_enter(&zfsvfs->z_znodes_lock); for (zp = list_head(&zfsvfs->z_all_znodes); zp != NULL; zp = list_next(&zfsvfs->z_all_znodes, zp)) - if (zp->z_dbuf) { + if (zp->z_sa_hdl) { ASSERT(ZTOV(zp)->v_count > 0); zfs_znode_dmu_fini(zp); } @@ -1668,9 +1826,8 @@ zfs_umount(vfs_t *vfsp, int fflag, cred_t *cr) ret = secpolicy_fs_unmount(cr, vfsp); if (ret) { - ret = dsl_deleg_access((char *)refstr_value(vfsp->vfs_resource), - ZFS_DELEG_PERM_MOUNT, cr); - if (ret) + if (dsl_deleg_access((char *)refstr_value(vfsp->vfs_resource), + ZFS_DELEG_PERM_MOUNT, cr)) return (ret); } @@ -1725,14 +1882,14 @@ zfs_umount(vfs_t *vfsp, int fflag, cred_t *cr) /* * Unset the objset user_ptr. */ - mutex_enter(&os->os->os_user_ptr_lock); + mutex_enter(&os->os_user_ptr_lock); dmu_objset_set_user(os, NULL); - mutex_exit(&os->os->os_user_ptr_lock); + mutex_exit(&os->os_user_ptr_lock); /* * Finally release the objset */ - dmu_objset_close(os); + dmu_objset_disown(os, zfsvfs); } /* @@ -1813,7 +1970,9 @@ zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp) ZFS_EXIT(zfsvfs); return (err); } - zp_gen = zp->z_phys->zp_gen & gen_mask; + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zfsvfs), &zp_gen, + sizeof (uint64_t)); + zp_gen = zp_gen & gen_mask; if (zp_gen == 0) zp_gen = 1; if (zp->z_unlinked || zp_gen != fid_gen) { @@ -1835,17 +1994,13 @@ zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp) * 'z_teardown_inactive_lock' write held. */ int -zfs_suspend_fs(zfsvfs_t *zfsvfs, char *name, int *modep) +zfs_suspend_fs(zfsvfs_t *zfsvfs) { int error; if ((error = zfsvfs_teardown(zfsvfs, B_FALSE)) != 0) return (error); - - *modep = zfsvfs->z_os->os_mode; - if (name) - dmu_objset_name(zfsvfs->z_os, name); - dmu_objset_close(zfsvfs->z_os); + dmu_objset_disown(zfsvfs->z_os, zfsvfs); return (0); } @@ -1854,18 +2009,30 @@ zfs_suspend_fs(zfsvfs_t *zfsvfs, char *name, int *modep) * Reopen zfsvfs_t::z_os and release VOPs. */ int -zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname, int mode) +zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname) { - int err; + int err, err2; ASSERT(RRW_WRITE_HELD(&zfsvfs->z_teardown_lock)); ASSERT(RW_WRITE_HELD(&zfsvfs->z_teardown_inactive_lock)); - err = dmu_objset_open(osname, DMU_OST_ZFS, mode, &zfsvfs->z_os); + err = dmu_objset_own(osname, DMU_OST_ZFS, B_FALSE, zfsvfs, + &zfsvfs->z_os); if (err) { zfsvfs->z_os = NULL; } else { znode_t *zp; + uint64_t sa_obj = 0; + + err2 = zap_lookup(zfsvfs->z_os, MASTER_NODE_OBJ, + ZFS_SA_ATTRS, 8, 1, &sa_obj); + + if ((err || err2) && zfsvfs->z_version >= ZPL_VERSION_SA) + goto bail; + + + zfsvfs->z_attr_table = sa_setup(zfsvfs->z_os, sa_obj, + zfs_attr_table, ZPL_END); VERIFY(zfsvfs_setup(zfsvfs, B_FALSE) == 0); @@ -1884,6 +2051,7 @@ zfs_resume_fs(zfsvfs_t *zfsvfs, const char *osname, int mode) } +bail: /* release the VOPs */ rw_exit(&zfsvfs->z_teardown_inactive_lock); rrw_exit(&zfsvfs->z_teardown_lock, FTAG); @@ -1906,9 +2074,11 @@ zfs_freevfs(vfs_t *vfsp) /* * If this is a snapshot, we have an extra VFS_HOLD on our parent - * from zfs_mount(). Release it here. + * from zfs_mount(). Release it here. If we came through + * zfs_mountroot() instead, we didn't grab an extra hold, so + * skip the VFS_RELE for rootvfs. */ - if (zfsvfs->z_issnap) + if (zfsvfs->z_issnap && (vfsp != rootvfs)) VFS_RELE(zfsvfs->z_parent->z_vfs); zfsvfs_free(zfsvfs); @@ -2000,13 +2170,23 @@ zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers) if (newvers < zfsvfs->z_version) return (EINVAL); + if (zfs_spa_version_map(newvers) > + spa_version(dmu_objset_spa(zfsvfs->z_os))) + return (ENOTSUP); + tx = dmu_tx_create(os); dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_FALSE, ZPL_VERSION_STR); + if (newvers >= ZPL_VERSION_SA && !zfsvfs->z_use_sa) { + dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_TRUE, + ZFS_SA_ATTRS); + dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); + } error = dmu_tx_assign(tx, TXG_WAIT); if (error) { dmu_tx_abort(tx); return (error); } + error = zap_update(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 8, 1, &newvers, tx); @@ -2015,9 +2195,24 @@ zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers) return (error); } - spa_history_internal_log(LOG_DS_UPGRADE, - dmu_objset_spa(os), tx, CRED(), - "oldver=%llu newver=%llu dataset = %llu", + if (newvers >= ZPL_VERSION_SA && !zfsvfs->z_use_sa) { + uint64_t sa_obj; + + ASSERT3U(spa_version(dmu_objset_spa(zfsvfs->z_os)), >=, + SPA_VERSION_SA); + sa_obj = zap_create(os, DMU_OT_SA_MASTER_NODE, + DMU_OT_NONE, 0, tx); + + error = zap_add(os, MASTER_NODE_OBJ, + ZFS_SA_ATTRS, 8, 1, &sa_obj, tx); + ASSERT3U(error, ==, 0); + + VERIFY(0 == sa_set_sa_object(os, sa_obj)); + sa_register_update_callback(os, zfs_sa_upgrade); + } + + spa_history_log_internal(LOG_DS_UPGRADE, + dmu_objset_spa(os), tx, "oldver=%llu newver=%llu dataset = %llu", zfsvfs->z_version, newvers, dmu_objset_id(os)); dmu_tx_commit(tx); diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c index 8eb4665ae..aa43c065f 100644 --- a/module/zfs/zfs_vnops.c +++ b/module/zfs/zfs_vnops.c @@ -19,11 +19,11 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* Portions Copyright 2007 Jeremy Teo */ +/* Portions Copyright 2010 Robert Milkowski */ #include <sys/types.h> #include <sys/param.h> @@ -57,10 +57,12 @@ #include <sys/zfs_ioctl.h> #include <sys/fs/zfs.h> #include <sys/dmu.h> +#include <sys/dmu_objset.h> #include <sys/spa.h> #include <sys/txg.h> #include <sys/dbuf.h> #include <sys/zap.h> +#include <sys/sa.h> #include <sys/dirent.h> #include <sys/policy.h> #include <sys/sunddi.h> @@ -69,11 +71,12 @@ #include "fs/fs_subr.h" #include <sys/zfs_ctldir.h> #include <sys/zfs_fuid.h> +#include <sys/zfs_sa.h> #include <sys/dnlc.h> #include <sys/zfs_rlock.h> #include <sys/extdirent.h> #include <sys/kidmap.h> -#include <sys/cred_impl.h> +#include <sys/cred.h> #include <sys/attr.h> /* @@ -176,7 +179,7 @@ zfs_open(vnode_t **vpp, int flag, cred_t *cr, caller_context_t *ct) ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); - if ((flag & FWRITE) && (zp->z_phys->zp_flags & ZFS_APPENDONLY) && + if ((flag & FWRITE) && (zp->z_pflags & ZFS_APPENDONLY) && ((flag & FAPPEND) == 0)) { ZFS_EXIT(zfsvfs); return (EPERM); @@ -184,8 +187,7 @@ zfs_open(vnode_t **vpp, int flag, cred_t *cr, caller_context_t *ct) if (!zfs_has_ctldir(zp) && zp->z_zfsvfs->z_vscan && ZTOV(zp)->v_type == VREG && - !(zp->z_phys->zp_flags & ZFS_AV_QUARANTINED) && - zp->z_phys->zp_size > 0) { + !(zp->z_pflags & ZFS_AV_QUARANTINED) && zp->z_size > 0) { if (fs_vscan(*vpp, cr, 0) != 0) { ZFS_EXIT(zfsvfs); return (EACCES); @@ -223,8 +225,7 @@ zfs_close(vnode_t *vp, int flag, int count, offset_t offset, cred_t *cr, if (!zfs_has_ctldir(zp) && zp->z_zfsvfs->z_vscan && ZTOV(zp)->v_type == VREG && - !(zp->z_phys->zp_flags & ZFS_AV_QUARANTINED) && - zp->z_phys->zp_size > 0) + !(zp->z_pflags & ZFS_AV_QUARANTINED) && zp->z_size > 0) VERIFY(fs_vscan(vp, cr, 1) == 0); ZFS_EXIT(zfsvfs); @@ -244,7 +245,7 @@ zfs_holey(vnode_t *vp, int cmd, offset_t *off) int error; boolean_t hole; - file_sz = zp->z_phys->zp_size; + file_sz = zp->z_size; if (noff >= file_sz) { return (ENXIO); } @@ -447,12 +448,13 @@ zfs_read(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) ssize_t n, nbytes; int error; rl_t *rl; + xuio_t *xuio = NULL; ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); os = zfsvfs->z_os; - if (zp->z_phys->zp_flags & ZFS_AV_QUARANTINED) { + if (zp->z_pflags & ZFS_AV_QUARANTINED) { ZFS_EXIT(zfsvfs); return (EACCES); } @@ -476,7 +478,7 @@ zfs_read(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) /* * Check for mandatory locks */ - if (MANDMODE((mode_t)zp->z_phys->zp_mode)) { + if (MANDMODE(zp->z_mode)) { if (error = chklock(vp, FREAD, uio->uio_loffset, uio->uio_resid, uio->uio_fmode, ct)) { ZFS_EXIT(zfsvfs); @@ -487,7 +489,7 @@ zfs_read(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) /* * If we're in FRSYNC mode, sync out this znode before reading it. */ - if (ioflag & FRSYNC) + if (ioflag & FRSYNC || zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) zil_commit(zfsvfs->z_log, zp->z_last_itx, zp->z_id); /* @@ -499,13 +501,42 @@ zfs_read(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) * If we are reading past end-of-file we can skip * to the end; but we might still need to set atime. */ - if (uio->uio_loffset >= zp->z_phys->zp_size) { + if (uio->uio_loffset >= zp->z_size) { error = 0; goto out; } - ASSERT(uio->uio_loffset < zp->z_phys->zp_size); - n = MIN(uio->uio_resid, zp->z_phys->zp_size - uio->uio_loffset); + ASSERT(uio->uio_loffset < zp->z_size); + n = MIN(uio->uio_resid, zp->z_size - uio->uio_loffset); + + if ((uio->uio_extflg == UIO_XUIO) && + (((xuio_t *)uio)->xu_type == UIOTYPE_ZEROCOPY)) { + int nblk; + int blksz = zp->z_blksz; + uint64_t offset = uio->uio_loffset; + + xuio = (xuio_t *)uio; + if ((ISP2(blksz))) { + nblk = (P2ROUNDUP(offset + n, blksz) - P2ALIGN(offset, + blksz)) / blksz; + } else { + ASSERT(offset + n <= blksz); + nblk = 1; + } + (void) dmu_xuio_init(xuio, nblk); + + if (vn_has_cached_data(vp)) { + /* + * For simplicity, we always allocate a full buffer + * even if we only expect to read a portion of a block. + */ + while (--nblk >= 0) { + (void) dmu_xuio_add(xuio, + dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), + blksz), 0, blksz); + } + } + } while (n > 0) { nbytes = MIN(n, zfs_read_chunk_size - @@ -524,7 +555,6 @@ zfs_read(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) n -= nbytes; } - out: zfs_range_unlock(rl); @@ -551,6 +581,7 @@ out: * Timestamps: * vp - ctime|mtime updated if byte count > 0 */ + /* ARGSUSED */ static int zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) @@ -567,9 +598,17 @@ zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) ssize_t n, nbytes; rl_t *rl; int max_blksz = zfsvfs->z_max_blksz; - uint64_t pflags; int error; arc_buf_t *abuf; + iovec_t *aiov; + xuio_t *xuio = NULL; + int i_iov = 0; + int iovcnt = uio->uio_iovcnt; + iovec_t *iovp = uio->uio_iov; + int write_eof; + int count = 0; + sa_bulk_attr_t bulk[4]; + uint64_t mtime[2], ctime[2]; /* * Fasttrack empty write @@ -584,13 +623,19 @@ zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL, + &zp->z_size, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, 8); + /* * If immutable or not appending then return EPERM */ - pflags = zp->z_phys->zp_flags; - if ((pflags & (ZFS_IMMUTABLE | ZFS_READONLY)) || - ((pflags & ZFS_APPENDONLY) && !(ioflag & FAPPEND) && - (uio->uio_loffset < zp->z_phys->zp_size))) { + if ((zp->z_pflags & (ZFS_IMMUTABLE | ZFS_READONLY)) || + ((zp->z_pflags & ZFS_APPENDONLY) && !(ioflag & FAPPEND) && + (uio->uio_loffset < zp->z_size))) { ZFS_EXIT(zfsvfs); return (EPERM); } @@ -598,44 +643,59 @@ zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) zilog = zfsvfs->z_log; /* + * Validate file offset + */ + woff = ioflag & FAPPEND ? zp->z_size : uio->uio_loffset; + if (woff < 0) { + ZFS_EXIT(zfsvfs); + return (EINVAL); + } + + /* + * Check for mandatory locks before calling zfs_range_lock() + * in order to prevent a deadlock with locks set via fcntl(). + */ + if (MANDMODE((mode_t)zp->z_mode) && + (error = chklock(vp, FWRITE, woff, n, uio->uio_fmode, ct)) != 0) { + ZFS_EXIT(zfsvfs); + return (error); + } + + /* * Pre-fault the pages to ensure slow (eg NFS) pages * don't hold up txg. + * Skip this if uio contains loaned arc_buf. */ - uio_prefaultpages(n, uio); + if ((uio->uio_extflg == UIO_XUIO) && + (((xuio_t *)uio)->xu_type == UIOTYPE_ZEROCOPY)) + xuio = (xuio_t *)uio; + else + uio_prefaultpages(n, uio); /* * If in append mode, set the io offset pointer to eof. */ if (ioflag & FAPPEND) { /* - * Range lock for a file append: - * The value for the start of range will be determined by - * zfs_range_lock() (to guarantee append semantics). - * If this write will cause the block size to increase, - * zfs_range_lock() will lock the entire file, so we must - * later reduce the range after we grow the block size. + * Obtain an appending range lock to guarantee file append + * semantics. We reset the write offset once we have the lock. */ rl = zfs_range_lock(zp, 0, n, RL_APPEND); + woff = rl->r_off; if (rl->r_len == UINT64_MAX) { - /* overlocked, zp_size can't change */ - woff = uio->uio_loffset = zp->z_phys->zp_size; - } else { - woff = uio->uio_loffset = rl->r_off; + /* + * We overlocked the file because this write will cause + * the file block size to increase. + * Note that zp_size cannot change with this lock held. + */ + woff = zp->z_size; } + uio->uio_loffset = woff; } else { - woff = uio->uio_loffset; - /* - * Validate file offset - */ - if (woff < 0) { - ZFS_EXIT(zfsvfs); - return (EINVAL); - } - /* - * If we need to grow the block size then zfs_range_lock() - * will lock a wider range than we request here. - * Later after growing the block size we reduce the range. + * Note that if the file block size will change as a result of + * this write, then this range lock will lock the entire file + * so that we can re-write the block safely. */ rl = zfs_range_lock(zp, woff, n, RL_WRITER); } @@ -649,16 +709,10 @@ zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) if ((woff + n) > limit || woff > (limit - n)) n = limit - woff; - /* - * Check for mandatory locks - */ - if (MANDMODE((mode_t)zp->z_phys->zp_mode) && - (error = chklock(vp, FWRITE, woff, n, uio->uio_fmode, ct)) != 0) { - zfs_range_unlock(rl); - ZFS_EXIT(zfsvfs); - return (error); - } - end_size = MAX(zp->z_phys->zp_size, woff + n); + /* Will this write extend the file length? */ + write_eof = (woff + n > zp->z_size); + + end_size = MAX(zp->z_size, woff + n); /* * Write the file in reasonable size chunks. Each chunk is written @@ -668,31 +722,41 @@ zfs_write(vnode_t *vp, uio_t *uio, int ioflag, cred_t *cr, caller_context_t *ct) while (n > 0) { abuf = NULL; woff = uio->uio_loffset; - again: - if (zfs_usergroup_overquota(zfsvfs, - B_FALSE, zp->z_phys->zp_uid) || - zfs_usergroup_overquota(zfsvfs, - B_TRUE, zp->z_phys->zp_gid)) { + if (zfs_owner_overquota(zfsvfs, zp, B_FALSE) || + zfs_owner_overquota(zfsvfs, zp, B_TRUE)) { if (abuf != NULL) dmu_return_arcbuf(abuf); error = EDQUOT; break; } - /* - * If dmu_assign_arcbuf() is expected to execute with minimum - * overhead loan an arc buffer and copy user data to it before - * we enter a txg. This avoids holding a txg forever while we - * pagefault on a hanging NFS server mapping. - */ - if (abuf == NULL && n >= max_blksz && - woff >= zp->z_phys->zp_size && + if (xuio && abuf == NULL) { + ASSERT(i_iov < iovcnt); + aiov = &iovp[i_iov]; + abuf = dmu_xuio_arcbuf(xuio, i_iov); + dmu_xuio_clear(xuio, i_iov); + DTRACE_PROBE3(zfs_cp_write, int, i_iov, + iovec_t *, aiov, arc_buf_t *, abuf); + ASSERT((aiov->iov_base == abuf->b_data) || + ((char *)aiov->iov_base - (char *)abuf->b_data + + aiov->iov_len == arc_buf_size(abuf))); + i_iov++; + } else if (abuf == NULL && n >= max_blksz && + woff >= zp->z_size && P2PHASE(woff, max_blksz) == 0 && zp->z_blksz == max_blksz) { + /* + * This write covers a full block. "Borrow" a buffer + * from the dmu so that we can fill it before we enter + * a transaction. This avoids the possibility of + * holding up the transaction if the data copy hangs + * up on a pagefault (e.g., from an NFS server mapping). + */ size_t cbytes; - abuf = dmu_request_arcbuf(zp->z_dbuf, max_blksz); + abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), + max_blksz); ASSERT(abuf != NULL); ASSERT(arc_buf_size(abuf) == max_blksz); if (error = uiocopy(abuf->b_data, max_blksz, @@ -707,8 +771,9 @@ again: * Start a transaction. */ tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); dmu_tx_hold_write(tx, zp->z_id, woff, MIN(n, max_blksz)); + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { if (error == ERESTART) { @@ -749,13 +814,30 @@ again: if (abuf == NULL) { tx_bytes = uio->uio_resid; - error = dmu_write_uio(zfsvfs->z_os, zp->z_id, uio, - nbytes, tx); + error = dmu_write_uio_dbuf(sa_get_db(zp->z_sa_hdl), + uio, nbytes, tx); tx_bytes -= uio->uio_resid; } else { tx_bytes = nbytes; - ASSERT(tx_bytes == max_blksz); - dmu_assign_arcbuf(zp->z_dbuf, woff, abuf, tx); + ASSERT(xuio == NULL || tx_bytes == aiov->iov_len); + /* + * If this is not a full block write, but we are + * extending the file past EOF and this data starts + * block-aligned, use assign_arcbuf(). Otherwise, + * write via dmu_write(). + */ + if (tx_bytes < max_blksz && (!write_eof || + aiov->iov_base != abuf->b_data)) { + ASSERT(xuio); + dmu_write(zfsvfs->z_os, zp->z_id, woff, + aiov->iov_len, aiov->iov_base, tx); + dmu_return_arcbuf(abuf); + xuio_stat_wbuf_copied(); + } else { + ASSERT(xuio || tx_bytes == max_blksz); + dmu_assign_arcbuf(sa_get_db(zp->z_sa_hdl), + woff, abuf, tx); + } ASSERT(tx_bytes <= uio->uio_resid); uioskip(uio, tx_bytes); } @@ -769,6 +851,8 @@ again: * partial progress, update the znode and ZIL accordingly. */ if (tx_bytes == 0) { + (void) sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zfsvfs), + (void *)&zp->z_size, sizeof (uint64_t), tx); dmu_tx_commit(tx); ASSERT(error != 0); break; @@ -782,33 +866,35 @@ again: * been done, but that would still expose the ISUID/ISGID * to another app after the partial write is committed. * - * Note: we don't call zfs_fuid_map_id() here because - * user 0 is not an ephemeral uid. */ mutex_enter(&zp->z_acl_lock); - if ((zp->z_phys->zp_mode & (S_IXUSR | (S_IXUSR >> 3) | + if ((zp->z_mode & (S_IXUSR | (S_IXUSR >> 3) | (S_IXUSR >> 6))) != 0 && - (zp->z_phys->zp_mode & (S_ISUID | S_ISGID)) != 0 && + (zp->z_mode & (S_ISUID | S_ISGID)) != 0 && secpolicy_vnode_setid_retain(cr, - (zp->z_phys->zp_mode & S_ISUID) != 0 && - zp->z_phys->zp_uid == 0) != 0) { - zp->z_phys->zp_mode &= ~(S_ISUID | S_ISGID); + (zp->z_mode & S_ISUID) != 0 && zp->z_uid == 0) != 0) { + uint64_t newmode; + zp->z_mode &= ~(S_ISUID | S_ISGID); + newmode = zp->z_mode; + (void) sa_update(zp->z_sa_hdl, SA_ZPL_MODE(zfsvfs), + (void *)&newmode, sizeof (uint64_t), tx); } mutex_exit(&zp->z_acl_lock); - /* - * Update time stamp. NOTE: This marks the bonus buffer as - * dirty, so we don't have to do it again for zp_size. - */ - zfs_time_stamper(zp, CONTENT_MODIFIED, tx); + zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, + B_TRUE); /* * Update the file size (zp_size) if it has changed; * account for possible concurrent updates. */ - while ((end_size = zp->z_phys->zp_size) < uio->uio_loffset) - (void) atomic_cas_64(&zp->z_phys->zp_size, end_size, + while ((end_size = zp->z_size) < uio->uio_loffset) { + (void) atomic_cas_64(&zp->z_size, end_size, uio->uio_loffset); + ASSERT(error == 0); + } + error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); + zfs_log_write(zilog, tx, TX_WRITE, zp, woff, tx_bytes, ioflag); dmu_tx_commit(tx); @@ -829,7 +915,8 @@ again: return (error); } - if (ioflag & (FSYNC | FDSYNC)) + if (ioflag & (FSYNC | FDSYNC) || + zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) zil_commit(zilog, zp->z_last_itx, zp->z_id); ZFS_EXIT(zfsvfs); @@ -837,21 +924,25 @@ again: } void -zfs_get_done(dmu_buf_t *db, void *vzgd) +zfs_get_done(zgd_t *zgd, int error) { - zgd_t *zgd = (zgd_t *)vzgd; - rl_t *rl = zgd->zgd_rl; - vnode_t *vp = ZTOV(rl->r_zp); - objset_t *os = rl->r_zp->z_zfsvfs->z_os; + znode_t *zp = zgd->zgd_private; + objset_t *os = zp->z_zfsvfs->z_os; + + if (zgd->zgd_db) + dmu_buf_rele(zgd->zgd_db, zgd); + + zfs_range_unlock(zgd->zgd_rl); - dmu_buf_rele(db, vzgd); - zfs_range_unlock(rl); /* * Release the vnode asynchronously as we currently have the * txg stopped from syncing. */ - VN_RELE_ASYNC(vp, dsl_pool_vnrele_taskq(dmu_objset_pool(os))); - zil_add_block(zgd->zgd_zilog, zgd->zgd_bp); + VN_RELE_ASYNC(ZTOV(zp), dsl_pool_vnrele_taskq(dmu_objset_pool(os))); + + if (error == 0 && zgd->zgd_bp) + zil_add_block(zgd->zgd_zilog, zgd->zgd_bp); + kmem_free(zgd, sizeof (zgd_t)); } @@ -868,20 +959,21 @@ zfs_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio) zfsvfs_t *zfsvfs = arg; objset_t *os = zfsvfs->z_os; znode_t *zp; - uint64_t off = lr->lr_offset; + uint64_t object = lr->lr_foid; + uint64_t offset = lr->lr_offset; + uint64_t size = lr->lr_length; + blkptr_t *bp = &lr->lr_blkptr; dmu_buf_t *db; - rl_t *rl; zgd_t *zgd; - int dlen = lr->lr_length; /* length of user data */ int error = 0; - ASSERT(zio); - ASSERT(dlen != 0); + ASSERT(zio != NULL); + ASSERT(size != 0); /* * Nothing to do if the file has been removed */ - if (zfs_zget(zfsvfs, lr->lr_foid, &zp) != 0) + if (zfs_zget(zfsvfs, object, &zp) != 0) return (ENOENT); if (zp->z_unlinked) { /* @@ -893,6 +985,10 @@ zfs_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio) return (ENOENT); } + zgd = (zgd_t *)kmem_zalloc(sizeof (zgd_t), KM_SLEEP); + zgd->zgd_zilog = zfsvfs->z_log; + zgd->zgd_private = zp; + /* * Write records come in two flavors: immediate and indirect. * For small writes it's cheaper to store the data with the @@ -901,17 +997,16 @@ zfs_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio) * we don't have to write the data twice. */ if (buf != NULL) { /* immediate write */ - rl = zfs_range_lock(zp, off, dlen, RL_READER); + zgd->zgd_rl = zfs_range_lock(zp, offset, size, RL_READER); /* test for truncation needs to be done while range locked */ - if (off >= zp->z_phys->zp_size) { + if (offset >= zp->z_size) { error = ENOENT; - goto out; + } else { + error = dmu_read(os, object, offset, size, buf, + DMU_READ_NO_PREFETCH); } - VERIFY(0 == dmu_read(os, lr->lr_foid, off, dlen, buf, - DMU_READ_NO_PREFETCH)); + ASSERT(error == 0 || error == ENOENT); } else { /* indirect write */ - uint64_t boff; /* block starting offset */ - /* * Have to lock the whole block to ensure when it's * written out and it's checksum is being calculated @@ -919,68 +1014,59 @@ zfs_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio) * blocksize after we get the lock in case it's changed! */ for (;;) { - if (ISP2(zp->z_blksz)) { - boff = P2ALIGN_TYPED(off, zp->z_blksz, - uint64_t); - } else { - boff = 0; - } - dlen = zp->z_blksz; - rl = zfs_range_lock(zp, boff, dlen, RL_READER); - if (zp->z_blksz == dlen) + uint64_t blkoff; + size = zp->z_blksz; + blkoff = ISP2(size) ? P2PHASE(offset, size) : offset; + offset -= blkoff; + zgd->zgd_rl = zfs_range_lock(zp, offset, size, + RL_READER); + if (zp->z_blksz == size) break; - zfs_range_unlock(rl); + offset += blkoff; + zfs_range_unlock(zgd->zgd_rl); } /* test for truncation needs to be done while range locked */ - if (off >= zp->z_phys->zp_size) { + if (lr->lr_offset >= zp->z_size) error = ENOENT; - goto out; - } - zgd = (zgd_t *)kmem_alloc(sizeof (zgd_t), KM_SLEEP); - zgd->zgd_rl = rl; - zgd->zgd_zilog = zfsvfs->z_log; - zgd->zgd_bp = &lr->lr_blkptr; #ifdef DEBUG if (zil_fault_io) { error = EIO; zil_fault_io = 0; - } else { - error = dmu_buf_hold(os, lr->lr_foid, boff, zgd, &db); } -#else - error = dmu_buf_hold(os, lr->lr_foid, boff, zgd, &db); #endif - if (error != 0) { - kmem_free(zgd, sizeof (zgd_t)); - goto out; - } - - ASSERT(boff == db->db_offset); - lr->lr_blkoff = off - boff; - error = dmu_sync(zio, db, &lr->lr_blkptr, - lr->lr_common.lrc_txg, zfs_get_done, zgd); - ASSERT((error && error != EINPROGRESS) || - lr->lr_length <= zp->z_blksz); if (error == 0) - zil_add_block(zfsvfs->z_log, &lr->lr_blkptr); - /* - * If we get EINPROGRESS, then we need to wait for a - * write IO initiated by dmu_sync() to complete before - * we can release this dbuf. We will finish everything - * up in the zfs_get_done() callback. - */ - if (error == EINPROGRESS) - return (0); - dmu_buf_rele(db, zgd); - kmem_free(zgd, sizeof (zgd_t)); + error = dmu_buf_hold(os, object, offset, zgd, &db, + DMU_READ_NO_PREFETCH); + + if (error == 0) { + zgd->zgd_db = db; + zgd->zgd_bp = bp; + + ASSERT(db->db_offset == offset); + ASSERT(db->db_size == size); + + error = dmu_sync(zio, lr->lr_common.lrc_txg, + zfs_get_done, zgd); + ASSERT(error || lr->lr_length <= zp->z_blksz); + + /* + * On success, we need to wait for the write I/O + * initiated by dmu_sync() to complete before we can + * release this dbuf. We will finish everything up + * in the zfs_get_done() callback. + */ + if (error == 0) + return (0); + + if (error == EALREADY) { + lr->lr_common.lrc_txtype = TX_WRITE2; + error = 0; + } + } } -out: - zfs_range_unlock(rl); - /* - * Release the vnode asynchronously as we currently have the - * txg stopped from syncing. - */ - VN_RELE_ASYNC(ZTOV(zp), dsl_pool_vnrele_taskq(dmu_objset_pool(os))); + + zfs_get_done(zgd, error); + return (error); } @@ -1063,7 +1149,7 @@ zfs_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, struct pathname *pnp, if (dvp->v_type != VDIR) { return (ENOTDIR); - } else if (zdp->z_dbuf == NULL) { + } else if (zdp->z_sa_hdl == NULL) { return (EIO); } @@ -1115,7 +1201,7 @@ zfs_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, struct pathname *pnp, * We don't allow recursive attributes.. * Maybe someday we will. */ - if (zdp->z_phys->zp_flags & ZFS_XATTR) { + if (zdp->z_pflags & ZFS_XATTR) { ZFS_EXIT(zfsvfs); return (EINVAL); } @@ -1208,8 +1294,9 @@ zfs_create(vnode_t *dvp, char *name, vattr_t *vap, vcexcl_t excl, ksid_t *ksid; uid_t uid; gid_t gid = crgetgid(cr); - zfs_acl_ids_t acl_ids; + zfs_acl_ids_t acl_ids; boolean_t fuid_dirtied; + boolean_t have_acl = B_FALSE; /* * If we have an ephemeral id, ACL, or XVATTR then @@ -1275,6 +1362,7 @@ top: return (error); } } + if (zp == NULL) { uint64_t txtype; @@ -1290,15 +1378,18 @@ top: * We only support the creation of regular files in * extended attribute directories. */ - if ((dzp->z_phys->zp_flags & ZFS_XATTR) && + + if ((dzp->z_pflags & ZFS_XATTR) && (vap->va_type != VREG)) { error = EINVAL; goto out; } - if ((error = zfs_acl_ids_create(dzp, 0, vap, cr, vsecp, - &acl_ids)) != 0) + if (!have_acl && (error = zfs_acl_ids_create(dzp, 0, vap, + cr, vsecp, &acl_ids)) != 0) goto out; + have_acl = B_TRUE; + if (zfs_acl_ids_overquota(zfsvfs, &acl_ids)) { zfs_acl_ids_free(&acl_ids); error = EDQUOT; @@ -1306,36 +1397,39 @@ top: } tx = dmu_tx_create(os); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); + + dmu_tx_hold_sa_create(tx, acl_ids.z_aclp->z_acl_bytes + + ZFS_SA_BASE_ATTR_SIZE); + fuid_dirtied = zfsvfs->z_fuid_dirty; if (fuid_dirtied) zfs_fuid_txhold(zfsvfs, tx); - dmu_tx_hold_bonus(tx, dzp->z_id); dmu_tx_hold_zap(tx, dzp->z_id, TRUE, name); - if (acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) { + dmu_tx_hold_sa(tx, dzp->z_sa_hdl, B_FALSE); + if (!zfsvfs->z_use_sa && + acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) { dmu_tx_hold_write(tx, DMU_NEW_OBJECT, - 0, SPA_MAXBLOCKSIZE); + 0, acl_ids.z_aclp->z_acl_bytes); } error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { - zfs_acl_ids_free(&acl_ids); zfs_dirent_unlock(dl); if (error == ERESTART) { dmu_tx_wait(tx); dmu_tx_abort(tx); goto top; } + zfs_acl_ids_free(&acl_ids); dmu_tx_abort(tx); ZFS_EXIT(zfsvfs); return (error); } - zfs_mknode(dzp, vap, tx, cr, 0, &zp, 0, &acl_ids); + zfs_mknode(dzp, vap, tx, cr, 0, &zp, &acl_ids); if (fuid_dirtied) zfs_fuid_sync(zfsvfs, tx); (void) zfs_link_create(dl, zp, tx, ZNEW); - txtype = zfs_log_create_txtype(Z_FILE, vsecp, vap); if (flag & FIGNORECASE) txtype |= TX_CI; @@ -1401,6 +1495,9 @@ out: error = specvp_check(vpp, cr); } + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); + ZFS_EXIT(zfsvfs); return (error); } @@ -1421,6 +1518,9 @@ out: * dvp - ctime|mtime * vp - ctime (if nlink > 0) */ + +uint64_t null_xattr = 0; + /*ARGSUSED*/ static int zfs_remove(vnode_t *dvp, char *name, cred_t *cr, caller_context_t *ct, @@ -1431,7 +1531,8 @@ zfs_remove(vnode_t *dvp, char *name, cred_t *cr, caller_context_t *ct, vnode_t *vp; zfsvfs_t *zfsvfs = dzp->z_zfsvfs; zilog_t *zilog; - uint64_t acl_obj, xattr_obj; + uint64_t acl_obj, xattr_obj = 0; + uint64_t xattr_obj_unlinked = 0; zfs_dirlock_t *dl; dmu_tx_t *tx; boolean_t may_delete_now, delete_now = FALSE; @@ -1497,24 +1598,29 @@ top: */ tx = dmu_tx_create(zfsvfs->z_os); dmu_tx_hold_zap(tx, dzp->z_id, FALSE, name); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); + zfs_sa_upgrade_txholds(tx, dzp); if (may_delete_now) { toobig = - zp->z_phys->zp_size > zp->z_blksz * DMU_MAX_DELETEBLKCNT; + zp->z_size > zp->z_blksz * DMU_MAX_DELETEBLKCNT; /* if the file is too big, only hold_free a token amount */ dmu_tx_hold_free(tx, zp->z_id, 0, (toobig ? DMU_MAX_ACCESS : DMU_OBJECT_END)); } /* are there any extended attributes? */ - if ((xattr_obj = zp->z_phys->zp_xattr) != 0) { - /* XXX - do we need this if we are deleting? */ - dmu_tx_hold_bonus(tx, xattr_obj); + error = sa_lookup(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), + &xattr_obj, sizeof (xattr_obj)); + if (xattr_obj) { + error = zfs_zget(zfsvfs, xattr_obj, &xzp); + ASSERT3U(error, ==, 0); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); + dmu_tx_hold_sa(tx, xzp->z_sa_hdl, B_FALSE); } /* are there any additional acls */ - if ((acl_obj = zp->z_phys->zp_acl.z_acl_extern_obj) != 0 && - may_delete_now) + if ((acl_obj = ZFS_EXTERNAL_ACL(zp)) != 0 && may_delete_now) dmu_tx_hold_free(tx, acl_obj, 0, DMU_OBJECT_END); /* charge as an update -- would be nice not to charge at all */ @@ -1547,26 +1653,37 @@ top: } if (unlinked) { + mutex_enter(&vp->v_lock); + + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), + &xattr_obj_unlinked, sizeof (xattr_obj_unlinked)); delete_now = may_delete_now && !toobig && vp->v_count == 1 && !vn_has_cached_data(vp) && - zp->z_phys->zp_xattr == xattr_obj && - zp->z_phys->zp_acl.z_acl_extern_obj == acl_obj; + xattr_obj == xattr_obj_unlinked && ZFS_EXTERNAL_ACL(zp) == + acl_obj; mutex_exit(&vp->v_lock); } if (delete_now) { - if (zp->z_phys->zp_xattr) { - error = zfs_zget(zfsvfs, zp->z_phys->zp_xattr, &xzp); - ASSERT3U(error, ==, 0); - ASSERT3U(xzp->z_phys->zp_links, ==, 2); - dmu_buf_will_dirty(xzp->z_dbuf, tx); + if (xattr_obj_unlinked) { + ASSERT3U(xzp->z_links, ==, 2); mutex_enter(&xzp->z_lock); xzp->z_unlinked = 1; - xzp->z_phys->zp_links = 0; + xzp->z_links = 0; + error = sa_update(xzp->z_sa_hdl, SA_ZPL_LINKS(zfsvfs), + &xzp->z_links, sizeof (xzp->z_links), tx); + ASSERT3U(error, ==, 0); mutex_exit(&xzp->z_lock); zfs_unlinked_add(xzp, tx); - zp->z_phys->zp_xattr = 0; /* probably unnecessary */ + if (zp->z_is_sa) + error = sa_remove(zp->z_sa_hdl, + SA_ZPL_XATTR(zfsvfs), tx); + else + error = sa_update(zp->z_sa_hdl, + SA_ZPL_XATTR(zfsvfs), &null_xattr, + sizeof (uint64_t), tx); + ASSERT3U(error, ==, 0); } mutex_enter(&zp->z_lock); mutex_enter(&vp->v_lock); @@ -1591,12 +1708,13 @@ out: zfs_dirent_unlock(dl); - if (!delete_now) { + if (!delete_now) VN_RELE(vp); - } else if (xzp) { - /* this rele is delayed to prevent nesting transactions */ + if (xzp) VN_RELE(ZTOV(xzp)); - } + + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); ZFS_EXIT(zfsvfs); return (error); @@ -1638,7 +1756,7 @@ zfs_mkdir(vnode_t *dvp, char *dirname, vattr_t *vap, vnode_t **vpp, cred_t *cr, ksid_t *ksid; uid_t uid; gid_t gid = crgetgid(cr); - zfs_acl_ids_t acl_ids; + zfs_acl_ids_t acl_ids; boolean_t fuid_dirtied; ASSERT(vap->va_type == VDIR); @@ -1662,7 +1780,7 @@ zfs_mkdir(vnode_t *dvp, char *dirname, vattr_t *vap, vnode_t **vpp, cred_t *cr, ZFS_VERIFY_ZP(dzp); zilog = zfsvfs->z_log; - if (dzp->z_phys->zp_flags & ZFS_XATTR) { + if (dzp->z_pflags & ZFS_XATTR) { ZFS_EXIT(zfsvfs); return (EINVAL); } @@ -1675,37 +1793,43 @@ zfs_mkdir(vnode_t *dvp, char *dirname, vattr_t *vap, vnode_t **vpp, cred_t *cr, if (flags & FIGNORECASE) zf |= ZCILOOK; - if (vap->va_mask & AT_XVATTR) + if (vap->va_mask & AT_XVATTR) { if ((error = secpolicy_xvattr((xvattr_t *)vap, crgetuid(cr), cr, vap->va_type)) != 0) { ZFS_EXIT(zfsvfs); return (error); } + } + if ((error = zfs_acl_ids_create(dzp, 0, vap, cr, + vsecp, &acl_ids)) != 0) { + ZFS_EXIT(zfsvfs); + return (error); + } /* * First make sure the new directory doesn't exist. + * + * Existence is checked first to make sure we don't return + * EACCES instead of EEXIST which can cause some applications + * to fail. */ top: *vpp = NULL; if (error = zfs_dirent_lock(&dl, dzp, dirname, &zp, zf, NULL, NULL)) { + zfs_acl_ids_free(&acl_ids); ZFS_EXIT(zfsvfs); return (error); } if (error = zfs_zaccess(dzp, ACE_ADD_SUBDIRECTORY, 0, B_FALSE, cr)) { + zfs_acl_ids_free(&acl_ids); zfs_dirent_unlock(dl); ZFS_EXIT(zfsvfs); return (error); } - if ((error = zfs_acl_ids_create(dzp, 0, vap, cr, vsecp, - &acl_ids)) != 0) { - zfs_dirent_unlock(dl); - ZFS_EXIT(zfsvfs); - return (error); - } if (zfs_acl_ids_overquota(zfsvfs, &acl_ids)) { zfs_acl_ids_free(&acl_ids); zfs_dirent_unlock(dl); @@ -1722,18 +1846,23 @@ top: fuid_dirtied = zfsvfs->z_fuid_dirty; if (fuid_dirtied) zfs_fuid_txhold(zfsvfs, tx); - if (acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, - 0, SPA_MAXBLOCKSIZE); + if (!zfsvfs->z_use_sa && acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) { + dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, + acl_ids.z_aclp->z_acl_bytes); + } + + dmu_tx_hold_sa_create(tx, acl_ids.z_aclp->z_acl_bytes + + ZFS_SA_BASE_ATTR_SIZE); + error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { - zfs_acl_ids_free(&acl_ids); zfs_dirent_unlock(dl); if (error == ERESTART) { dmu_tx_wait(tx); dmu_tx_abort(tx); goto top; } + zfs_acl_ids_free(&acl_ids); dmu_tx_abort(tx); ZFS_EXIT(zfsvfs); return (error); @@ -1742,10 +1871,11 @@ top: /* * Create new node. */ - zfs_mknode(dzp, vap, tx, cr, 0, &zp, 0, &acl_ids); + zfs_mknode(dzp, vap, tx, cr, 0, &zp, &acl_ids); if (fuid_dirtied) zfs_fuid_sync(zfsvfs, tx); + /* * Now put new name in parent dir. */ @@ -1760,10 +1890,14 @@ top: acl_ids.z_fuidp, vap); zfs_acl_ids_free(&acl_ids); + dmu_tx_commit(tx); zfs_dirent_unlock(dl); + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); + ZFS_EXIT(zfsvfs); return (0); } @@ -1851,8 +1985,10 @@ top: tx = dmu_tx_create(zfsvfs->z_os); dmu_tx_hold_zap(tx, dzp->z_id, FALSE, name); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, FALSE, NULL); + zfs_sa_upgrade_txholds(tx, zp); + zfs_sa_upgrade_txholds(tx, dzp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { rw_exit(&zp->z_parent_lock); @@ -1887,6 +2023,9 @@ out: VN_RELE(vp); + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); + ZFS_EXIT(zfsvfs); return (error); } @@ -1934,6 +2073,7 @@ zfs_readdir(vnode_t *vp, uio_t *uio, cred_t *cr, int *eofp, zap_attribute_t zap; uint_t bytes_wanted; uint64_t offset; /* must be unsigned; checks for < 1 */ + uint64_t parent; int local_eof; int outcount; int error; @@ -1943,6 +2083,12 @@ zfs_readdir(vnode_t *vp, uio_t *uio, cred_t *cr, int *eofp, ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_PARENT(zfsvfs), + &parent, sizeof (parent))) != 0) { + ZFS_EXIT(zfsvfs); + return (error); + } + /* * If we are not given an eof variable, * use a local one. @@ -2030,7 +2176,7 @@ zfs_readdir(vnode_t *vp, uio_t *uio, cred_t *cr, int *eofp, } else if (offset == 1) { (void) strcpy(zap.za_name, ".."); zap.za_normalization_conflict = 0; - objnum = zp->z_phys->zp_parent; + objnum = parent; } else if (offset == 2 && zfs_show_ctldir(zp)) { (void) strcpy(zap.za_name, ZFS_CTLDIR_NAME); zap.za_normalization_conflict = 0; @@ -2194,10 +2340,12 @@ zfs_fsync(vnode_t *vp, int syncflag, cred_t *cr, caller_context_t *ct) (void) tsd_set(zfs_fsyncer_key, (void *)zfs_fsync_sync_cnt); - ZFS_ENTER(zfsvfs); - ZFS_VERIFY_ZP(zp); - zil_commit(zfsvfs->z_log, zp->z_last_itx, zp->z_id); - ZFS_EXIT(zfsvfs); + if (zfsvfs->z_os->os_sync != ZFS_SYNC_DISABLED) { + ZFS_ENTER(zfsvfs); + ZFS_VERIFY_ZP(zp); + zil_commit(zfsvfs->z_log, zp->z_last_itx, zp->z_id); + ZFS_EXIT(zfsvfs); + } return (0); } @@ -2224,24 +2372,32 @@ zfs_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, { znode_t *zp = VTOZ(vp); zfsvfs_t *zfsvfs = zp->z_zfsvfs; - znode_phys_t *pzp; int error = 0; uint64_t links; + uint64_t mtime[2], ctime[2]; xvattr_t *xvap = (xvattr_t *)vap; /* vap may be an xvattr_t * */ xoptattr_t *xoap = NULL; boolean_t skipaclchk = (flags & ATTR_NOACLCHECK) ? B_TRUE : B_FALSE; + sa_bulk_attr_t bulk[2]; + int count = 0; ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); - pzp = zp->z_phys; + + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16); + + if ((error = sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) != 0) { + ZFS_EXIT(zfsvfs); + return (error); + } /* * If ACL is trivial don't bother looking for ACE_READ_ATTRIBUTES. * Also, if we are the owner don't bother, since owner should * always be allowed to read basic attributes of file. */ - if (!(pzp->zp_flags & ZFS_ACL_TRIVIAL) && - (pzp->zp_uid != crgetuid(cr))) { + if (!(zp->z_pflags & ZFS_ACL_TRIVIAL) && (zp->z_uid != crgetuid(cr))) { if (error = zfs_zaccess(zp, ACE_READ_ATTRIBUTES, 0, skipaclchk, cr)) { ZFS_EXIT(zfsvfs); @@ -2256,16 +2412,17 @@ zfs_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, mutex_enter(&zp->z_lock); vap->va_type = vp->v_type; - vap->va_mode = pzp->zp_mode & MODEMASK; - zfs_fuid_map_ids(zp, cr, &vap->va_uid, &vap->va_gid); + vap->va_mode = zp->z_mode & MODEMASK; + vap->va_uid = zp->z_uid; + vap->va_gid = zp->z_gid; vap->va_fsid = zp->z_zfsvfs->z_vfs->vfs_dev; vap->va_nodeid = zp->z_id; if ((vp->v_flag & VROOT) && zfs_show_ctldir(zp)) - links = pzp->zp_links + 1; + links = zp->z_links + 1; else - links = pzp->zp_links; + links = zp->z_links; vap->va_nlink = MIN(links, UINT32_MAX); /* nlink_t limit! */ - vap->va_size = pzp->zp_size; + vap->va_size = zp->z_size; vap->va_rdev = vp->v_rdev; vap->va_seq = zp->z_seq; @@ -2276,109 +2433,97 @@ zfs_getattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, if ((xoap = xva_getxoptattr(xvap)) != NULL && zfsvfs->z_use_fuids) { if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) { xoap->xoa_archive = - ((pzp->zp_flags & ZFS_ARCHIVE) != 0); + ((zp->z_pflags & ZFS_ARCHIVE) != 0); XVA_SET_RTN(xvap, XAT_ARCHIVE); } if (XVA_ISSET_REQ(xvap, XAT_READONLY)) { xoap->xoa_readonly = - ((pzp->zp_flags & ZFS_READONLY) != 0); + ((zp->z_pflags & ZFS_READONLY) != 0); XVA_SET_RTN(xvap, XAT_READONLY); } if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) { xoap->xoa_system = - ((pzp->zp_flags & ZFS_SYSTEM) != 0); + ((zp->z_pflags & ZFS_SYSTEM) != 0); XVA_SET_RTN(xvap, XAT_SYSTEM); } if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) { xoap->xoa_hidden = - ((pzp->zp_flags & ZFS_HIDDEN) != 0); + ((zp->z_pflags & ZFS_HIDDEN) != 0); XVA_SET_RTN(xvap, XAT_HIDDEN); } if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) { xoap->xoa_nounlink = - ((pzp->zp_flags & ZFS_NOUNLINK) != 0); + ((zp->z_pflags & ZFS_NOUNLINK) != 0); XVA_SET_RTN(xvap, XAT_NOUNLINK); } if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) { xoap->xoa_immutable = - ((pzp->zp_flags & ZFS_IMMUTABLE) != 0); + ((zp->z_pflags & ZFS_IMMUTABLE) != 0); XVA_SET_RTN(xvap, XAT_IMMUTABLE); } if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) { xoap->xoa_appendonly = - ((pzp->zp_flags & ZFS_APPENDONLY) != 0); + ((zp->z_pflags & ZFS_APPENDONLY) != 0); XVA_SET_RTN(xvap, XAT_APPENDONLY); } if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) { xoap->xoa_nodump = - ((pzp->zp_flags & ZFS_NODUMP) != 0); + ((zp->z_pflags & ZFS_NODUMP) != 0); XVA_SET_RTN(xvap, XAT_NODUMP); } if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) { xoap->xoa_opaque = - ((pzp->zp_flags & ZFS_OPAQUE) != 0); + ((zp->z_pflags & ZFS_OPAQUE) != 0); XVA_SET_RTN(xvap, XAT_OPAQUE); } if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) { xoap->xoa_av_quarantined = - ((pzp->zp_flags & ZFS_AV_QUARANTINED) != 0); + ((zp->z_pflags & ZFS_AV_QUARANTINED) != 0); XVA_SET_RTN(xvap, XAT_AV_QUARANTINED); } if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) { xoap->xoa_av_modified = - ((pzp->zp_flags & ZFS_AV_MODIFIED) != 0); + ((zp->z_pflags & ZFS_AV_MODIFIED) != 0); XVA_SET_RTN(xvap, XAT_AV_MODIFIED); } if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP) && - vp->v_type == VREG && - (pzp->zp_flags & ZFS_BONUS_SCANSTAMP)) { - size_t len; - dmu_object_info_t doi; - - /* - * Only VREG files have anti-virus scanstamps, so we - * won't conflict with symlinks in the bonus buffer. - */ - dmu_object_info_from_db(zp->z_dbuf, &doi); - len = sizeof (xoap->xoa_av_scanstamp) + - sizeof (znode_phys_t); - if (len <= doi.doi_bonus_size) { - /* - * pzp points to the start of the - * znode_phys_t. pzp + 1 points to the - * first byte after the znode_phys_t. - */ - (void) memcpy(xoap->xoa_av_scanstamp, - pzp + 1, - sizeof (xoap->xoa_av_scanstamp)); - XVA_SET_RTN(xvap, XAT_AV_SCANSTAMP); - } + vp->v_type == VREG) { + zfs_sa_get_scanstamp(zp, xvap); } if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) { - ZFS_TIME_DECODE(&xoap->xoa_createtime, pzp->zp_crtime); + uint64_t times[2]; + + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zfsvfs), + times, sizeof (times)); + ZFS_TIME_DECODE(&xoap->xoa_createtime, times); XVA_SET_RTN(xvap, XAT_CREATETIME); } + + if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) { + xoap->xoa_reparse = ((zp->z_pflags & ZFS_REPARSE) != 0); + XVA_SET_RTN(xvap, XAT_REPARSE); + } } - ZFS_TIME_DECODE(&vap->va_atime, pzp->zp_atime); - ZFS_TIME_DECODE(&vap->va_mtime, pzp->zp_mtime); - ZFS_TIME_DECODE(&vap->va_ctime, pzp->zp_ctime); + ZFS_TIME_DECODE(&vap->va_atime, zp->z_atime); + ZFS_TIME_DECODE(&vap->va_mtime, mtime); + ZFS_TIME_DECODE(&vap->va_ctime, ctime); mutex_exit(&zp->z_lock); - dmu_object_size_from_db(zp->z_dbuf, &vap->va_blksize, &vap->va_nblocks); + sa_object_size(zp->z_sa_hdl, &vap->va_blksize, &vap->va_nblocks); if (zp->z_blksz == 0) { /* @@ -2415,7 +2560,6 @@ zfs_setattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, caller_context_t *ct) { znode_t *zp = VTOZ(vp); - znode_phys_t *pzp; zfsvfs_t *zfsvfs = zp->z_zfsvfs; zilog_t *zilog; dmu_tx_t *tx; @@ -2426,15 +2570,19 @@ zfs_setattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, int trim_mask = 0; uint64_t new_mode; uint64_t new_uid, new_gid; + uint64_t xattr_obj = 0; + uint64_t mtime[2], ctime[2]; znode_t *attrzp; int need_policy = FALSE; - int err; + int err, err2; zfs_fuid_info_t *fuidp = NULL; xvattr_t *xvap = (xvattr_t *)vap; /* vap may be an xvattr_t * */ xoptattr_t *xoap; zfs_acl_t *aclp = NULL; boolean_t skipaclchk = (flags & ATTR_NOACLCHECK) ? B_TRUE : B_FALSE; - boolean_t fuid_dirtied = B_FALSE; + boolean_t fuid_dirtied = B_FALSE; + sa_bulk_attr_t bulk[7], xattr_bulk[7]; + int count = 0, xattr_count = 0; if (mask == 0) return (0); @@ -2445,7 +2593,6 @@ zfs_setattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); - pzp = zp->z_phys; zilog = zfsvfs->z_log; /* @@ -2482,14 +2629,14 @@ zfs_setattr(vnode_t *vp, vattr_t *vap, int flags, cred_t *cr, /* * Immutable files can only alter immutable bit and atime */ - if ((pzp->zp_flags & ZFS_IMMUTABLE) && + if ((zp->z_pflags & ZFS_IMMUTABLE) && ((mask & (AT_SIZE|AT_UID|AT_GID|AT_MTIME|AT_MODE)) || ((mask & AT_XVATTR) && XVA_ISSET_REQ(xvap, XAT_CREATETIME)))) { ZFS_EXIT(zfsvfs); return (EPERM); } - if ((mask & AT_SIZE) && (pzp->zp_flags & ZFS_READONLY)) { + if ((mask & AT_SIZE) && (zp->z_pflags & ZFS_READONLY)) { ZFS_EXIT(zfsvfs); return (EPERM); } @@ -2546,9 +2693,10 @@ top: XVA_ISSET_REQ(xvap, XAT_READONLY) || XVA_ISSET_REQ(xvap, XAT_ARCHIVE) || XVA_ISSET_REQ(xvap, XAT_CREATETIME) || - XVA_ISSET_REQ(xvap, XAT_SYSTEM)))) + XVA_ISSET_REQ(xvap, XAT_SYSTEM)))) { need_policy = zfs_zaccess(zp, ACE_WRITE_ATTRIBUTES, 0, skipaclchk, cr); + } if (mask & (AT_UID|AT_GID)) { int idmask = (mask & (AT_UID|AT_GID)); @@ -2561,7 +2709,7 @@ top: */ if (!(mask & AT_MODE)) - vap->va_mode = pzp->zp_mode; + vap->va_mode = zp->z_mode; /* * Take ownership or chgrp to group we are a member of @@ -2599,8 +2747,9 @@ top: } mutex_enter(&zp->z_lock); - oldva.va_mode = pzp->zp_mode; - zfs_fuid_map_ids(zp, cr, &oldva.va_uid, &oldva.va_gid); + oldva.va_mode = zp->z_mode; + oldva.va_uid = zp->z_uid; + oldva.va_gid = zp->z_gid; if (mask & AT_XVATTR) { /* * Update xvattr mask to include only those attributes @@ -2611,7 +2760,7 @@ top: */ if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) { if (xoap->xoa_appendonly != - ((pzp->zp_flags & ZFS_APPENDONLY) != 0)) { + ((zp->z_pflags & ZFS_APPENDONLY) != 0)) { need_policy = TRUE; } else { XVA_CLR_REQ(xvap, XAT_APPENDONLY); @@ -2621,7 +2770,7 @@ top: if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) { if (xoap->xoa_nounlink != - ((pzp->zp_flags & ZFS_NOUNLINK) != 0)) { + ((zp->z_pflags & ZFS_NOUNLINK) != 0)) { need_policy = TRUE; } else { XVA_CLR_REQ(xvap, XAT_NOUNLINK); @@ -2631,7 +2780,7 @@ top: if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) { if (xoap->xoa_immutable != - ((pzp->zp_flags & ZFS_IMMUTABLE) != 0)) { + ((zp->z_pflags & ZFS_IMMUTABLE) != 0)) { need_policy = TRUE; } else { XVA_CLR_REQ(xvap, XAT_IMMUTABLE); @@ -2641,7 +2790,7 @@ top: if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) { if (xoap->xoa_nodump != - ((pzp->zp_flags & ZFS_NODUMP) != 0)) { + ((zp->z_pflags & ZFS_NODUMP) != 0)) { need_policy = TRUE; } else { XVA_CLR_REQ(xvap, XAT_NODUMP); @@ -2651,7 +2800,7 @@ top: if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) { if (xoap->xoa_av_modified != - ((pzp->zp_flags & ZFS_AV_MODIFIED) != 0)) { + ((zp->z_pflags & ZFS_AV_MODIFIED) != 0)) { need_policy = TRUE; } else { XVA_CLR_REQ(xvap, XAT_AV_MODIFIED); @@ -2663,7 +2812,7 @@ top: if ((vp->v_type != VREG && xoap->xoa_av_quarantined) || xoap->xoa_av_quarantined != - ((pzp->zp_flags & ZFS_AV_QUARANTINED) != 0)) { + ((zp->z_pflags & ZFS_AV_QUARANTINED) != 0)) { need_policy = TRUE; } else { XVA_CLR_REQ(xvap, XAT_AV_QUARANTINED); @@ -2671,6 +2820,12 @@ top: } } + if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) { + mutex_exit(&zp->z_lock); + ZFS_EXIT(zfsvfs); + return (EPERM); + } + if (need_policy == FALSE && (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP) || XVA_ISSET_REQ(xvap, XAT_OPAQUE))) { @@ -2724,79 +2879,84 @@ top: */ mask = vap->va_mask; + if ((mask & (AT_UID | AT_GID))) { + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_XATTR(zfsvfs), &xattr_obj, + sizeof (xattr_obj)); + + if (xattr_obj) { + err = zfs_zget(zp->z_zfsvfs, xattr_obj, &attrzp); + if (err) + goto out2; + } + if (mask & AT_UID) { + new_uid = zfs_fuid_create(zfsvfs, + (uint64_t)vap->va_uid, cr, ZFS_OWNER, &fuidp); + if (vap->va_uid != zp->z_uid && + zfs_fuid_overquota(zfsvfs, B_FALSE, new_uid)) { + err = EDQUOT; + goto out2; + } + } + + if (mask & AT_GID) { + new_gid = zfs_fuid_create(zfsvfs, (uint64_t)vap->va_gid, + cr, ZFS_GROUP, &fuidp); + if (new_gid != zp->z_gid && + zfs_fuid_overquota(zfsvfs, B_TRUE, new_gid)) { + err = EDQUOT; + goto out2; + } + } + } tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); if (mask & AT_MODE) { - uint64_t pmode = pzp->zp_mode; - + uint64_t pmode = zp->z_mode; new_mode = (pmode & S_IFMT) | (vap->va_mode & ~S_IFMT); if (err = zfs_acl_chmod_setattr(zp, &aclp, new_mode)) goto out; - if (pzp->zp_acl.z_acl_extern_obj) { - /* Are we upgrading ACL from old V0 format to new V1 */ + + if (!zp->z_is_sa && ZFS_EXTERNAL_ACL(zp)) { + /* + * Are we upgrading ACL from old V0 format + * to V1 format? + */ if (zfsvfs->z_version <= ZPL_VERSION_FUID && - pzp->zp_acl.z_acl_version == + ZNODE_ACL_VERSION(zp) == ZFS_ACL_VERSION_INITIAL) { dmu_tx_hold_free(tx, - pzp->zp_acl.z_acl_extern_obj, 0, + ZFS_EXTERNAL_ACL(zp), 0, DMU_OBJECT_END); dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, aclp->z_acl_bytes); } else { - dmu_tx_hold_write(tx, - pzp->zp_acl.z_acl_extern_obj, 0, + dmu_tx_hold_write(tx, ZFS_EXTERNAL_ACL(zp), 0, aclp->z_acl_bytes); } - } else if (aclp->z_acl_bytes > ZFS_ACE_SPACE) { + } else if (!zp->z_is_sa && aclp->z_acl_bytes > ZFS_ACE_SPACE) { dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, aclp->z_acl_bytes); } + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); + } else { + if ((mask & AT_XVATTR) && + XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE); + else + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); } - if (mask & (AT_UID | AT_GID)) { - if (pzp->zp_xattr) { - err = zfs_zget(zp->z_zfsvfs, pzp->zp_xattr, &attrzp); - if (err) - goto out; - dmu_tx_hold_bonus(tx, attrzp->z_id); - } - if (mask & AT_UID) { - new_uid = zfs_fuid_create(zfsvfs, - (uint64_t)vap->va_uid, cr, ZFS_OWNER, &fuidp); - if (new_uid != pzp->zp_uid && - zfs_usergroup_overquota(zfsvfs, B_FALSE, new_uid)) { - err = EDQUOT; - goto out; - } - } - - if (mask & AT_GID) { - new_gid = zfs_fuid_create(zfsvfs, (uint64_t)vap->va_gid, - cr, ZFS_GROUP, &fuidp); - if (new_gid != pzp->zp_gid && - zfs_usergroup_overquota(zfsvfs, B_TRUE, new_gid)) { - err = EDQUOT; - goto out; - } - } - fuid_dirtied = zfsvfs->z_fuid_dirty; - if (fuid_dirtied) { - if (zfsvfs->z_fuid_obj == 0) { - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, - FUID_SIZE_ESTIMATE(zfsvfs)); - dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, - FALSE, NULL); - } else { - dmu_tx_hold_bonus(tx, zfsvfs->z_fuid_obj); - dmu_tx_hold_write(tx, zfsvfs->z_fuid_obj, 0, - FUID_SIZE_ESTIMATE(zfsvfs)); - } - } + if (attrzp) { + dmu_tx_hold_sa(tx, attrzp->z_sa_hdl, B_FALSE); } + fuid_dirtied = zfsvfs->z_fuid_dirty; + if (fuid_dirtied) + zfs_fuid_txhold(zfsvfs, tx); + + zfs_sa_upgrade_txholds(tx, zp); + err = dmu_tx_assign(tx, TXG_NOWAIT); if (err) { if (err == ERESTART) @@ -2804,8 +2964,7 @@ top: goto out; } - dmu_buf_will_dirty(zp->z_dbuf, tx); - + count = 0; /* * Set each attribute requested. * We group settings according to the locks they need to acquire. @@ -2816,9 +2975,62 @@ top: mutex_enter(&zp->z_lock); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, sizeof (zp->z_pflags)); + + if (attrzp) { + mutex_enter(&attrzp->z_lock); + SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, + SA_ZPL_FLAGS(zfsvfs), NULL, &attrzp->z_pflags, + sizeof (attrzp->z_pflags)); + } + + if (mask & (AT_UID|AT_GID)) { + + if (mask & AT_UID) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, + &new_uid, sizeof (new_uid)); + zp->z_uid = zfs_fuid_map_id(zfsvfs, new_uid, + cr, ZFS_OWNER); + if (attrzp) { + SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, + SA_ZPL_UID(zfsvfs), NULL, &new_uid, + sizeof (new_uid)); + attrzp->z_uid = zp->z_uid; + } + } + + if (mask & AT_GID) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), + NULL, &new_gid, sizeof (new_gid)); + zp->z_gid = zfs_fuid_map_id(zfsvfs, new_gid, cr, + ZFS_GROUP); + if (attrzp) { + SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, + SA_ZPL_GID(zfsvfs), NULL, &new_gid, + sizeof (new_gid)); + attrzp->z_gid = zp->z_gid; + } + } + if (!(mask & AT_MODE)) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), + NULL, &new_mode, sizeof (new_mode)); + new_mode = zp->z_mode; + } + err = zfs_acl_chown_setattr(zp); + ASSERT(err == 0); + if (attrzp) { + err = zfs_acl_chown_setattr(attrzp); + ASSERT(err == 0); + } + } + if (mask & AT_MODE) { mutex_enter(&zp->z_acl_lock); - zp->z_phys->zp_mode = new_mode; + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, + &new_mode, sizeof (new_mode)); + zp->z_mode = new_mode; + ASSERT3U((uintptr_t)aclp, !=, NULL); err = zfs_aclset_common(zp, aclp, cr, tx); ASSERT3U(err, ==, 0); zp->z_acl_cached = aclp; @@ -2827,34 +3039,41 @@ top: } if (attrzp) - mutex_enter(&attrzp->z_lock); + mutex_exit(&attrzp->z_lock); - if (mask & AT_UID) { - pzp->zp_uid = new_uid; - if (attrzp) - attrzp->z_phys->zp_uid = new_uid; + if (mask & AT_ATIME) { + ZFS_TIME_ENCODE(&vap->va_atime, zp->z_atime); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL, + &zp->z_atime, sizeof (zp->z_atime)); } - if (mask & AT_GID) { - pzp->zp_gid = new_gid; - if (attrzp) - attrzp->z_phys->zp_gid = new_gid; + if (mask & AT_MTIME) { + ZFS_TIME_ENCODE(&vap->va_mtime, mtime); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, + mtime, sizeof (mtime)); } - if (attrzp) - mutex_exit(&attrzp->z_lock); - - if (mask & AT_ATIME) - ZFS_TIME_ENCODE(&vap->va_atime, pzp->zp_atime); - - if (mask & AT_MTIME) - ZFS_TIME_ENCODE(&vap->va_mtime, pzp->zp_mtime); - /* XXX - shouldn't this be done *before* the ATIME/MTIME checks? */ - if (mask & AT_SIZE) - zfs_time_stamper_locked(zp, CONTENT_MODIFIED, tx); - else if (mask != 0) - zfs_time_stamper_locked(zp, STATE_CHANGED, tx); + if (mask & AT_SIZE && !(mask & AT_MTIME)) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), + NULL, mtime, sizeof (mtime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, + &ctime, sizeof (ctime)); + zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, + B_TRUE); + } else if (mask != 0) { + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, + &ctime, sizeof (ctime)); + zfs_tstamp_update_setup(zp, STATE_CHANGED, mtime, ctime, + B_TRUE); + if (attrzp) { + SA_ADD_BULK_ATTR(xattr_bulk, xattr_count, + SA_ZPL_CTIME(zfsvfs), NULL, + &ctime, sizeof (ctime)); + zfs_tstamp_update_setup(attrzp, STATE_CHANGED, + mtime, ctime, B_TRUE); + } + } /* * Do this after setting timestamps to prevent timestamp * update from toggling bit @@ -2886,20 +3105,10 @@ top: XVA_SET_REQ(xvap, XAT_AV_QUARANTINED); } - if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) { - size_t len; - dmu_object_info_t doi; - + if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) ASSERT(vp->v_type == VREG); - /* Grow the bonus buffer if necessary. */ - dmu_object_info_from_db(zp->z_dbuf, &doi); - len = sizeof (xoap->xoa_av_scanstamp) + - sizeof (znode_phys_t); - if (len > doi.doi_bonus_size) - VERIFY(dmu_set_bonus(zp->z_dbuf, len, tx) == 0); - } - zfs_xvattr_set(zp, xvap); + zfs_xvattr_set(zp, xvap, tx); } if (fuid_dirtied) @@ -2911,9 +3120,14 @@ top: mutex_exit(&zp->z_lock); out: + if (err == 0 && attrzp) { + err2 = sa_bulk_update(attrzp->z_sa_hdl, xattr_bulk, + xattr_count, tx); + ASSERT(err2 == 0); + } + if (attrzp) VN_RELE(ZTOV(attrzp)); - if (aclp) zfs_acl_free(aclp); @@ -2922,13 +3136,19 @@ out: fuidp = NULL; } - if (err) + if (err) { dmu_tx_abort(tx); - else + if (err == ERESTART) + goto top; + } else { + err2 = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); dmu_tx_commit(tx); + } + - if (err == ERESTART) - goto top; +out2: + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); ZFS_EXIT(zfsvfs); return (err); @@ -2969,7 +3189,7 @@ zfs_rename_lock(znode_t *szp, znode_t *tdzp, znode_t *sdzp, zfs_zlock_t **zlpp) zfs_zlock_t *zl; znode_t *zp = tdzp; uint64_t rootid = zp->z_zfsvfs->z_root; - uint64_t *oidp = &zp->z_id; + uint64_t oidp = zp->z_id; krwlock_t *rwlp = &szp->z_parent_lock; krw_t rw = RW_WRITER; @@ -2991,7 +3211,7 @@ zfs_rename_lock(znode_t *szp, znode_t *tdzp, znode_t *sdzp, zfs_zlock_t **zlpp) zfs_rename_unlock(&zl); *zlpp = NULL; zp = tdzp; - oidp = &zp->z_id; + oidp = zp->z_id; rwlp = &szp->z_parent_lock; rw = RW_WRITER; continue; @@ -3009,19 +3229,20 @@ zfs_rename_lock(znode_t *szp, znode_t *tdzp, znode_t *sdzp, zfs_zlock_t **zlpp) zl->zl_next = *zlpp; *zlpp = zl; - if (*oidp == szp->z_id) /* We're a descendant of szp */ + if (oidp == szp->z_id) /* We're a descendant of szp */ return (EINVAL); - if (*oidp == rootid) /* We've hit the top */ + if (oidp == rootid) /* We've hit the top */ return (0); if (rw == RW_READER) { /* i.e. not the first pass */ - int error = zfs_zget(zp->z_zfsvfs, *oidp, &zp); + int error = zfs_zget(zp->z_zfsvfs, oidp, &zp); if (error) return (error); zl->zl_znode = zp; } - oidp = &zp->z_phys->zp_parent; + (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_PARENT(zp->z_zfsvfs), + &oidp, sizeof (oidp)); rwlp = &zp->z_parent_lock; rw = RW_READER; @@ -3075,7 +3296,7 @@ zfs_rename(vnode_t *sdvp, char *snm, vnode_t *tdvp, char *tnm, cred_t *cr, if (VOP_REALVP(tdvp, &realvp, ct) == 0) tdvp = realvp; - if (tdvp->v_vfsp != sdvp->v_vfsp) { + if (tdvp->v_vfsp != sdvp->v_vfsp || zfsctl_is_node(tdvp)) { ZFS_EXIT(zfsvfs); return (EXDEV); } @@ -3101,8 +3322,7 @@ top: * by renaming a linked file into/outof an attribute directory. * See the comment in zfs_link() for why this is considered bad. */ - if ((tdzp->z_phys->zp_flags & ZFS_XATTR) != - (sdzp->z_phys->zp_flags & ZFS_XATTR)) { + if ((tdzp->z_pflags & ZFS_XATTR) != (sdzp->z_pflags & ZFS_XATTR)) { ZFS_EXIT(zfsvfs); return (EINVAL); } @@ -3168,6 +3388,15 @@ top: } } + /* + * If the source and destination directories are the same, we should + * grab the z_name_lock of that directory only once. + */ + if (sdzp == tdzp) { + zflg |= ZHAVELOCK; + rw_enter(&sdzp->z_name_lock, RW_READER); + } + if (cmp < 0) { serr = zfs_dirent_lock(&sdl, sdzp, snm, &szp, ZEXISTS | zflg, NULL, NULL); @@ -3190,6 +3419,10 @@ top: if (tzp) VN_RELE(ZTOV(tzp)); } + + if (sdzp == tdzp) + rw_exit(&sdzp->z_name_lock); + if (strcmp(snm, "..") == 0) serr = EINVAL; ZFS_EXIT(zfsvfs); @@ -3198,6 +3431,10 @@ top: if (terr) { zfs_dirent_unlock(sdl); VN_RELE(ZTOV(szp)); + + if (sdzp == tdzp) + rw_exit(&sdzp->z_name_lock); + if (strcmp(tnm, "..") == 0) terr = EINVAL; ZFS_EXIT(zfsvfs); @@ -3265,14 +3502,20 @@ top: } tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, szp->z_id); /* nlink changes */ - dmu_tx_hold_bonus(tx, sdzp->z_id); /* nlink changes */ + dmu_tx_hold_sa(tx, szp->z_sa_hdl, B_FALSE); + dmu_tx_hold_sa(tx, sdzp->z_sa_hdl, B_FALSE); dmu_tx_hold_zap(tx, sdzp->z_id, FALSE, snm); dmu_tx_hold_zap(tx, tdzp->z_id, TRUE, tnm); - if (sdzp != tdzp) - dmu_tx_hold_bonus(tx, tdzp->z_id); /* nlink changes */ - if (tzp) - dmu_tx_hold_bonus(tx, tzp->z_id); /* parent changes */ + if (sdzp != tdzp) { + dmu_tx_hold_sa(tx, tdzp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, tdzp); + } + if (tzp) { + dmu_tx_hold_sa(tx, tzp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, tzp); + } + + zfs_sa_upgrade_txholds(tx, szp); dmu_tx_hold_zap(tx, zfsvfs->z_unlinkedobj, FALSE, NULL); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { @@ -3280,6 +3523,10 @@ top: zfs_rename_unlock(&zl); zfs_dirent_unlock(sdl); zfs_dirent_unlock(tdl); + + if (sdzp == tdzp) + rw_exit(&sdzp->z_name_lock); + VN_RELE(ZTOV(szp)); if (tzp) VN_RELE(ZTOV(tzp)); @@ -3299,17 +3546,40 @@ top: if (error == 0) { error = zfs_link_create(tdl, szp, tx, ZRENAMING); if (error == 0) { - szp->z_phys->zp_flags |= ZFS_AV_MODIFIED; + szp->z_pflags |= ZFS_AV_MODIFIED; - error = zfs_link_destroy(sdl, szp, tx, ZRENAMING, NULL); - ASSERT(error == 0); + error = sa_update(szp->z_sa_hdl, SA_ZPL_FLAGS(zfsvfs), + (void *)&szp->z_pflags, sizeof (uint64_t), tx); + ASSERT3U(error, ==, 0); - zfs_log_rename(zilog, tx, - TX_RENAME | (flags & FIGNORECASE ? TX_CI : 0), - sdzp, sdl->dl_name, tdzp, tdl->dl_name, szp); + error = zfs_link_destroy(sdl, szp, tx, ZRENAMING, NULL); + if (error == 0) { + zfs_log_rename(zilog, tx, TX_RENAME | + (flags & FIGNORECASE ? TX_CI : 0), + sdzp, sdl->dl_name, tdzp, tdl->dl_name, + szp); - /* Update path information for the target vnode */ - vn_renamepath(tdvp, ZTOV(szp), tnm, strlen(tnm)); + /* + * Update path information for the target vnode + */ + vn_renamepath(tdvp, ZTOV(szp), tnm, + strlen(tnm)); + } else { + /* + * At this point, we have successfully created + * the target name, but have failed to remove + * the source name. Since the create was done + * with the ZRENAMING flag, there are + * complications; for one, the link count is + * wrong. The easiest way to deal with this + * is to remove the newly created target, and + * return the original error. This must + * succeed; fortunately, it is very unlikely to + * fail, since we just created it. + */ + VERIFY3U(zfs_link_destroy(tdl, szp, tx, + ZRENAMING, NULL), ==, 0); + } } } @@ -3321,10 +3591,17 @@ out: zfs_dirent_unlock(sdl); zfs_dirent_unlock(tdl); + if (sdzp == tdzp) + rw_exit(&sdzp->z_name_lock); + + VN_RELE(ZTOV(szp)); if (tzp) VN_RELE(ZTOV(tzp)); + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); + ZFS_EXIT(zfsvfs); return (error); } @@ -3356,11 +3633,12 @@ zfs_symlink(vnode_t *dvp, char *name, vattr_t *vap, char *link, cred_t *cr, dmu_tx_t *tx; zfsvfs_t *zfsvfs = dzp->z_zfsvfs; zilog_t *zilog; - int len = strlen(link); + uint64_t len = strlen(link); int error; int zflg = ZNEW; zfs_acl_ids_t acl_ids; boolean_t fuid_dirtied; + uint64_t txtype = TX_SYMLINK; ASSERT(vap->va_type == VLNK); @@ -3375,27 +3653,35 @@ zfs_symlink(vnode_t *dvp, char *name, vattr_t *vap, char *link, cred_t *cr, } if (flags & FIGNORECASE) zflg |= ZCILOOK; -top: - if (error = zfs_zaccess(dzp, ACE_ADD_FILE, 0, B_FALSE, cr)) { - ZFS_EXIT(zfsvfs); - return (error); - } if (len > MAXPATHLEN) { ZFS_EXIT(zfsvfs); return (ENAMETOOLONG); } + if ((error = zfs_acl_ids_create(dzp, 0, + vap, cr, NULL, &acl_ids)) != 0) { + ZFS_EXIT(zfsvfs); + return (error); + } +top: /* * Attempt to lock directory; fail if entry already exists. */ error = zfs_dirent_lock(&dl, dzp, name, &zp, zflg, NULL, NULL); if (error) { + zfs_acl_ids_free(&acl_ids); + ZFS_EXIT(zfsvfs); + return (error); + } + + if (error = zfs_zaccess(dzp, ACE_ADD_FILE, 0, B_FALSE, cr)) { + zfs_acl_ids_free(&acl_ids); + zfs_dirent_unlock(dl); ZFS_EXIT(zfsvfs); return (error); } - VERIFY(0 == zfs_acl_ids_create(dzp, 0, vap, cr, NULL, &acl_ids)); if (zfs_acl_ids_overquota(zfsvfs, &acl_ids)) { zfs_acl_ids_free(&acl_ids); zfs_dirent_unlock(dl); @@ -3405,70 +3691,56 @@ top: tx = dmu_tx_create(zfsvfs->z_os); fuid_dirtied = zfsvfs->z_fuid_dirty; dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, MAX(1, len)); - dmu_tx_hold_bonus(tx, dzp->z_id); dmu_tx_hold_zap(tx, dzp->z_id, TRUE, name); - if (acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, SPA_MAXBLOCKSIZE); + dmu_tx_hold_sa_create(tx, acl_ids.z_aclp->z_acl_bytes + + ZFS_SA_BASE_ATTR_SIZE + len); + dmu_tx_hold_sa(tx, dzp->z_sa_hdl, B_FALSE); + if (!zfsvfs->z_use_sa && acl_ids.z_aclp->z_acl_bytes > ZFS_ACE_SPACE) { + dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, + acl_ids.z_aclp->z_acl_bytes); + } if (fuid_dirtied) zfs_fuid_txhold(zfsvfs, tx); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { - zfs_acl_ids_free(&acl_ids); zfs_dirent_unlock(dl); if (error == ERESTART) { dmu_tx_wait(tx); dmu_tx_abort(tx); goto top; } + zfs_acl_ids_free(&acl_ids); dmu_tx_abort(tx); ZFS_EXIT(zfsvfs); return (error); } - dmu_buf_will_dirty(dzp->z_dbuf, tx); - /* * Create a new object for the symlink. - * Put the link content into bonus buffer if it will fit; - * otherwise, store it just like any other file data. + * for version 4 ZPL datsets the symlink will be an SA attribute */ - if (sizeof (znode_phys_t) + len <= dmu_bonus_max()) { - zfs_mknode(dzp, vap, tx, cr, 0, &zp, len, &acl_ids); - if (len != 0) - bcopy(link, zp->z_phys + 1, len); - } else { - dmu_buf_t *dbp; - - zfs_mknode(dzp, vap, tx, cr, 0, &zp, 0, &acl_ids); + zfs_mknode(dzp, vap, tx, cr, 0, &zp, &acl_ids); - if (fuid_dirtied) - zfs_fuid_sync(zfsvfs, tx); - /* - * Nothing can access the znode yet so no locking needed - * for growing the znode's blocksize. - */ - zfs_grow_blocksize(zp, len, tx); - - VERIFY(0 == dmu_buf_hold(zfsvfs->z_os, - zp->z_id, 0, FTAG, &dbp)); - dmu_buf_will_dirty(dbp, tx); + if (fuid_dirtied) + zfs_fuid_sync(zfsvfs, tx); - ASSERT3U(len, <=, dbp->db_size); - bcopy(link, dbp->db_data, len); - dmu_buf_rele(dbp, FTAG); - } - zp->z_phys->zp_size = len; + if (zp->z_is_sa) + error = sa_update(zp->z_sa_hdl, SA_ZPL_SYMLINK(zfsvfs), + link, len, tx); + else + zfs_sa_symlink(zp, link, len, tx); + zp->z_size = len; + (void) sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zfsvfs), + &zp->z_size, sizeof (zp->z_size), tx); /* * Insert the new object into the directory. */ (void) zfs_link_create(dl, zp, tx, ZNEW); - if (error == 0) { - uint64_t txtype = TX_SYMLINK; - if (flags & FIGNORECASE) - txtype |= TX_CI; - zfs_log_symlink(zilog, tx, txtype, dzp, zp, name, link); - } + + if (flags & FIGNORECASE) + txtype |= TX_CI; + zfs_log_symlink(zilog, tx, txtype, dzp, zp, name, link); zfs_acl_ids_free(&acl_ids); @@ -3478,6 +3750,9 @@ top: VN_RELE(ZTOV(zp)); + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); + ZFS_EXIT(zfsvfs); return (error); } @@ -3505,29 +3780,19 @@ zfs_readlink(vnode_t *vp, uio_t *uio, cred_t *cr, caller_context_t *ct) { znode_t *zp = VTOZ(vp); zfsvfs_t *zfsvfs = zp->z_zfsvfs; - size_t bufsz; int error; ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); - bufsz = (size_t)zp->z_phys->zp_size; - if (bufsz + sizeof (znode_phys_t) <= zp->z_dbuf->db_size) { - error = uiomove(zp->z_phys + 1, - MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio); - } else { - dmu_buf_t *dbp; - error = dmu_buf_hold(zfsvfs->z_os, zp->z_id, 0, FTAG, &dbp); - if (error) { - ZFS_EXIT(zfsvfs); - return (error); - } - error = uiomove(dbp->db_data, - MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio); - dmu_buf_rele(dbp, FTAG); - } + if (zp->z_is_sa) + error = sa_lookup_uio(zp->z_sa_hdl, + SA_ZPL_SYMLINK(zfsvfs), uio); + else + error = zfs_sa_readlink(zp, uio); ZFS_ACCESSTIME_STAMP(zfsvfs, zp); + ZFS_EXIT(zfsvfs); return (error); } @@ -3562,7 +3827,7 @@ zfs_link(vnode_t *tdvp, vnode_t *svp, char *name, cred_t *cr, vnode_t *realvp; int error; int zf = ZNEW; - uid_t owner; + uint64_t parent; ASSERT(tdvp->v_type == VDIR); @@ -3573,13 +3838,35 @@ zfs_link(vnode_t *tdvp, vnode_t *svp, char *name, cred_t *cr, if (VOP_REALVP(svp, &realvp, ct) == 0) svp = realvp; - if (svp->v_vfsp != tdvp->v_vfsp) { + /* + * POSIX dictates that we return EPERM here. + * Better choices include ENOTSUP or EISDIR. + */ + if (svp->v_type == VDIR) { + ZFS_EXIT(zfsvfs); + return (EPERM); + } + + if (svp->v_vfsp != tdvp->v_vfsp || zfsctl_is_node(svp)) { ZFS_EXIT(zfsvfs); return (EXDEV); } + szp = VTOZ(svp); ZFS_VERIFY_ZP(szp); + /* Prevent links to .zfs/shares files */ + + if ((error = sa_lookup(szp->z_sa_hdl, SA_ZPL_PARENT(zfsvfs), + &parent, sizeof (uint64_t))) != 0) { + ZFS_EXIT(zfsvfs); + return (error); + } + if (parent == zfsvfs->z_shares_dir) { + ZFS_EXIT(zfsvfs); + return (EPERM); + } + if (zfsvfs->z_utf8 && u8_validate(name, strlen(name), NULL, U8_VALIDATE_ENTIRE, &error) < 0) { ZFS_EXIT(zfsvfs); @@ -3588,30 +3875,19 @@ zfs_link(vnode_t *tdvp, vnode_t *svp, char *name, cred_t *cr, if (flags & FIGNORECASE) zf |= ZCILOOK; -top: /* * We do not support links between attributes and non-attributes * because of the potential security risk of creating links * into "normal" file space in order to circumvent restrictions * imposed in attribute space. */ - if ((szp->z_phys->zp_flags & ZFS_XATTR) != - (dzp->z_phys->zp_flags & ZFS_XATTR)) { + if ((szp->z_pflags & ZFS_XATTR) != (dzp->z_pflags & ZFS_XATTR)) { ZFS_EXIT(zfsvfs); return (EINVAL); } - /* - * POSIX dictates that we return EPERM here. - * Better choices include ENOTSUP or EISDIR. - */ - if (svp->v_type == VDIR) { - ZFS_EXIT(zfsvfs); - return (EPERM); - } - owner = zfs_fuid_map_id(zfsvfs, szp->z_phys->zp_uid, cr, ZFS_OWNER); - if (owner != crgetuid(cr) && + if (szp->z_uid != crgetuid(cr) && secpolicy_basic_link(cr) != 0) { ZFS_EXIT(zfsvfs); return (EPERM); @@ -3622,6 +3898,7 @@ top: return (error); } +top: /* * Attempt to lock directory; fail if entry already exists. */ @@ -3632,8 +3909,10 @@ top: } tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, szp->z_id); + dmu_tx_hold_sa(tx, szp->z_sa_hdl, B_FALSE); dmu_tx_hold_zap(tx, dzp->z_id, TRUE, name); + zfs_sa_upgrade_txholds(tx, szp); + zfs_sa_upgrade_txholds(tx, dzp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { zfs_dirent_unlock(dl); @@ -3664,6 +3943,9 @@ top: vnevent_link(svp, ct); } + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); + ZFS_EXIT(zfsvfs); return (error); } @@ -3709,10 +3991,8 @@ zfs_putapage(vnode_t *vp, page_t *pp, u_offset_t *offp, dmu_tx_t *tx; u_offset_t off, koff; size_t len, klen; - uint64_t filesz; int err; - filesz = zp->z_phys->zp_size; off = pp->p_offset; len = PAGESIZE; /* @@ -3720,12 +4000,12 @@ zfs_putapage(vnode_t *vp, page_t *pp, u_offset_t *offp, * multiple pages so that we write a full block (thus avoiding * a read-modify-write). */ - if (off < filesz && zp->z_blksz > PAGESIZE) { + if (off < zp->z_size && zp->z_blksz > PAGESIZE) { klen = P2ROUNDUP((ulong_t)zp->z_blksz, PAGESIZE); koff = ISP2(klen) ? P2ALIGN(off, (u_offset_t)klen) : 0; - ASSERT(koff <= filesz); - if (koff + klen > filesz) - klen = P2ROUNDUP(filesz - koff, (uint64_t)PAGESIZE); + ASSERT(koff <= zp->z_size); + if (koff + klen > zp->z_size) + klen = P2ROUNDUP(zp->z_size - koff, (uint64_t)PAGESIZE); pp = pvn_write_kluster(vp, pp, &off, &len, koff, klen, flags); } ASSERT3U(btop(len), ==, btopr(len)); @@ -3733,30 +4013,32 @@ zfs_putapage(vnode_t *vp, page_t *pp, u_offset_t *offp, /* * Can't push pages past end-of-file. */ - if (off >= filesz) { + if (off >= zp->z_size) { /* ignore all pages */ err = 0; goto out; - } else if (off + len > filesz) { - int npages = btopr(filesz - off); + } else if (off + len > zp->z_size) { + int npages = btopr(zp->z_size - off); page_t *trunc; page_list_break(&pp, &trunc, npages); /* ignore pages past end of file */ if (trunc) pvn_write_done(trunc, flags); - len = filesz - off; + len = zp->z_size - off; } - if (zfs_usergroup_overquota(zfsvfs, B_FALSE, zp->z_phys->zp_uid) || - zfs_usergroup_overquota(zfsvfs, B_TRUE, zp->z_phys->zp_gid)) { + if (zfs_owner_overquota(zfsvfs, zp, B_FALSE) || + zfs_owner_overquota(zfsvfs, zp, B_TRUE)) { err = EDQUOT; goto out; } top: tx = dmu_tx_create(zfsvfs->z_os); dmu_tx_hold_write(tx, zp->z_id, off, len); - dmu_tx_hold_bonus(tx, zp->z_id); + + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); err = dmu_tx_assign(tx, TXG_NOWAIT); if (err != 0) { if (err == ERESTART) { @@ -3778,7 +4060,18 @@ top: } if (err == 0) { - zfs_time_stamper(zp, CONTENT_MODIFIED, tx); + uint64_t mtime[2], ctime[2]; + sa_bulk_attr_t bulk[3]; + int count = 0; + + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, + &mtime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, + &ctime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, 8); + zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, + B_TRUE); zfs_log_write(zfsvfs->z_log, tx, TX_WRITE, zp, off, len, 0); } dmu_tx_commit(tx); @@ -3854,14 +4147,14 @@ zfs_putpage(vnode_t *vp, offset_t off, size_t len, int flags, cred_t *cr, } rl = zfs_range_lock(zp, io_off, io_len, RL_WRITER); - if (off > zp->z_phys->zp_size) { + if (off > zp->z_size) { /* past end of file */ zfs_range_unlock(rl); ZFS_EXIT(zfsvfs); return (0); } - len = MIN(io_len, P2ROUNDUP(zp->z_phys->zp_size, PAGESIZE) - io_off); + len = MIN(io_len, P2ROUNDUP(zp->z_size, PAGESIZE) - io_off); for (off = io_off; io_off < off + len; io_off += io_len) { if ((flags & B_INVAL) || ((flags & B_ASYNC) == 0)) { @@ -3887,7 +4180,7 @@ zfs_putpage(vnode_t *vp, offset_t off, size_t len, int flags, cred_t *cr, } out: zfs_range_unlock(rl); - if ((flags & B_ASYNC) == 0) + if ((flags & B_ASYNC) == 0 || zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) zil_commit(zfsvfs->z_log, UINT64_MAX, zp->z_id); ZFS_EXIT(zfsvfs); return (error); @@ -3902,7 +4195,7 @@ zfs_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) int error; rw_enter(&zfsvfs->z_teardown_inactive_lock, RW_READER); - if (zp->z_dbuf == NULL) { + if (zp->z_sa_hdl == NULL) { /* * The fs has been unmounted, or we did a * suspend/resume and this file no longer exists. @@ -3913,7 +4206,10 @@ zfs_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) } mutex_enter(&zp->z_lock); - vp->v_count = 0; /* count arrives as 1 */ + mutex_enter(&vp->v_lock); + ASSERT(vp->v_count == 1); + vp->v_count = 0; + mutex_exit(&vp->v_lock); mutex_exit(&zp->z_lock); rw_exit(&zfsvfs->z_teardown_inactive_lock); zfs_znode_free(zp); @@ -3932,13 +4228,15 @@ zfs_inactive(vnode_t *vp, cred_t *cr, caller_context_t *ct) if (zp->z_atime_dirty && zp->z_unlinked == 0) { dmu_tx_t *tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_WAIT); if (error) { dmu_tx_abort(tx); } else { - dmu_buf_will_dirty(zp->z_dbuf, tx); mutex_enter(&zp->z_lock); + (void) sa_update(zp->z_sa_hdl, SA_ZPL_ATIME(zfsvfs), + (void *)&zp->z_atime, sizeof (zp->z_atime), tx); zp->z_atime_dirty = 0; mutex_exit(&zp->z_lock); dmu_tx_commit(tx); @@ -3980,7 +4278,6 @@ zfs_frlock(vnode_t *vp, int cmd, flock64_t *bfp, int flag, offset_t offset, { znode_t *zp = VTOZ(vp); zfsvfs_t *zfsvfs = zp->z_zfsvfs; - int error; ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); @@ -3991,13 +4288,12 @@ zfs_frlock(vnode_t *vp, int cmd, flock64_t *bfp, int flag, offset_t offset, * return an error, but we don't worry about races between this * function and zfs_map(). */ - if (zp->z_mapcnt > 0 && MANDMODE((mode_t)zp->z_phys->zp_mode)) { + if (zp->z_mapcnt > 0 && MANDMODE(zp->z_mode)) { ZFS_EXIT(zfsvfs); return (EAGAIN); } - error = fs_frlock(vp, cmd, bfp, flag, offset, flk_cbp, cr, ct); ZFS_EXIT(zfsvfs); - return (error); + return (fs_frlock(vp, cmd, bfp, flag, offset, flk_cbp, cr, ct)); } /* @@ -4205,15 +4501,14 @@ zfs_map(vnode_t *vp, offset_t off, struct as *as, caddr_t *addrp, ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); - if ((prot & PROT_WRITE) && - (zp->z_phys->zp_flags & (ZFS_IMMUTABLE | ZFS_READONLY | - ZFS_APPENDONLY))) { + if ((prot & PROT_WRITE) && (zp->z_pflags & + (ZFS_IMMUTABLE | ZFS_READONLY | ZFS_APPENDONLY))) { ZFS_EXIT(zfsvfs); return (EPERM); } if ((prot & (PROT_READ | PROT_EXEC)) && - (zp->z_phys->zp_flags & ZFS_AV_QUARANTINED)) { + (zp->z_pflags & ZFS_AV_QUARANTINED)) { ZFS_EXIT(zfsvfs); return (EACCES); } @@ -4236,7 +4531,7 @@ zfs_map(vnode_t *vp, offset_t off, struct as *as, caddr_t *addrp, /* * If file is locked, disallow mapping. */ - if (MANDMODE((mode_t)zp->z_phys->zp_mode) && vn_has_flocks(vp)) { + if (MANDMODE(zp->z_mode) && vn_has_flocks(vp)) { ZFS_EXIT(zfsvfs); return (EAGAIN); } @@ -4382,13 +4677,21 @@ zfs_fid(vnode_t *vp, fid_t *fidp, caller_context_t *ct) znode_t *zp = VTOZ(vp); zfsvfs_t *zfsvfs = zp->z_zfsvfs; uint32_t gen; + uint64_t gen64; uint64_t object = zp->z_id; zfid_short_t *zfid; - int size, i; + int size, i, error; ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); - gen = (uint32_t)zp->z_gen; + + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zfsvfs), + &gen64, sizeof (uint64_t))) != 0) { + ZFS_EXIT(zfsvfs); + return (error); + } + + gen = (uint32_t)gen64; size = (zfsvfs->z_parent != zfsvfs) ? LONG_FID_LEN : SHORT_FID_LEN; if (fidp->fid_len < size) { @@ -4488,6 +4791,11 @@ zfs_pathconf(vnode_t *vp, int cmd, ulong_t *valp, cred_t *cr, *valp = (ulong_t)SPA_MINBLOCKSIZE; return (0); + case _PC_TIMESTAMP_RESOLUTION: + /* nanosecond timestamp resolution */ + *valp = 1L; + return (0); + default: return (fs_pathconf(vp, cmd, valp, cr, ct)); } @@ -4520,15 +4828,179 @@ zfs_setsecattr(vnode_t *vp, vsecattr_t *vsecp, int flag, cred_t *cr, zfsvfs_t *zfsvfs = zp->z_zfsvfs; int error; boolean_t skipaclchk = (flag & ATTR_NOACLCHECK) ? B_TRUE : B_FALSE; + zilog_t *zilog = zfsvfs->z_log; ZFS_ENTER(zfsvfs); ZFS_VERIFY_ZP(zp); + error = zfs_setacl(zp, vsecp, skipaclchk, cr); + + if (zfsvfs->z_os->os_sync == ZFS_SYNC_ALWAYS) + zil_commit(zilog, UINT64_MAX, 0); + ZFS_EXIT(zfsvfs); return (error); } /* + * Tunable, both must be a power of 2. + * + * zcr_blksz_min: the smallest read we may consider to loan out an arcbuf + * zcr_blksz_max: if set to less than the file block size, allow loaning out of + * an arcbuf for a partial block read + */ +int zcr_blksz_min = (1 << 10); /* 1K */ +int zcr_blksz_max = (1 << 17); /* 128K */ + +/*ARGSUSED*/ +static int +zfs_reqzcbuf(vnode_t *vp, enum uio_rw ioflag, xuio_t *xuio, cred_t *cr, + caller_context_t *ct) +{ + znode_t *zp = VTOZ(vp); + zfsvfs_t *zfsvfs = zp->z_zfsvfs; + int max_blksz = zfsvfs->z_max_blksz; + uio_t *uio = &xuio->xu_uio; + ssize_t size = uio->uio_resid; + offset_t offset = uio->uio_loffset; + int blksz; + int fullblk, i; + arc_buf_t *abuf; + ssize_t maxsize; + int preamble, postamble; + + if (xuio->xu_type != UIOTYPE_ZEROCOPY) + return (EINVAL); + + ZFS_ENTER(zfsvfs); + ZFS_VERIFY_ZP(zp); + switch (ioflag) { + case UIO_WRITE: + /* + * Loan out an arc_buf for write if write size is bigger than + * max_blksz, and the file's block size is also max_blksz. + */ + blksz = max_blksz; + if (size < blksz || zp->z_blksz != blksz) { + ZFS_EXIT(zfsvfs); + return (EINVAL); + } + /* + * Caller requests buffers for write before knowing where the + * write offset might be (e.g. NFS TCP write). + */ + if (offset == -1) { + preamble = 0; + } else { + preamble = P2PHASE(offset, blksz); + if (preamble) { + preamble = blksz - preamble; + size -= preamble; + } + } + + postamble = P2PHASE(size, blksz); + size -= postamble; + + fullblk = size / blksz; + (void) dmu_xuio_init(xuio, + (preamble != 0) + fullblk + (postamble != 0)); + DTRACE_PROBE3(zfs_reqzcbuf_align, int, preamble, + int, postamble, int, + (preamble != 0) + fullblk + (postamble != 0)); + + /* + * Have to fix iov base/len for partial buffers. They + * currently represent full arc_buf's. + */ + if (preamble) { + /* data begins in the middle of the arc_buf */ + abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), + blksz); + ASSERT(abuf); + (void) dmu_xuio_add(xuio, abuf, + blksz - preamble, preamble); + } + + for (i = 0; i < fullblk; i++) { + abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), + blksz); + ASSERT(abuf); + (void) dmu_xuio_add(xuio, abuf, 0, blksz); + } + + if (postamble) { + /* data ends in the middle of the arc_buf */ + abuf = dmu_request_arcbuf(sa_get_db(zp->z_sa_hdl), + blksz); + ASSERT(abuf); + (void) dmu_xuio_add(xuio, abuf, 0, postamble); + } + break; + case UIO_READ: + /* + * Loan out an arc_buf for read if the read size is larger than + * the current file block size. Block alignment is not + * considered. Partial arc_buf will be loaned out for read. + */ + blksz = zp->z_blksz; + if (blksz < zcr_blksz_min) + blksz = zcr_blksz_min; + if (blksz > zcr_blksz_max) + blksz = zcr_blksz_max; + /* avoid potential complexity of dealing with it */ + if (blksz > max_blksz) { + ZFS_EXIT(zfsvfs); + return (EINVAL); + } + + maxsize = zp->z_size - uio->uio_loffset; + if (size > maxsize) + size = maxsize; + + if (size < blksz || vn_has_cached_data(vp)) { + ZFS_EXIT(zfsvfs); + return (EINVAL); + } + break; + default: + ZFS_EXIT(zfsvfs); + return (EINVAL); + } + + uio->uio_extflg = UIO_XUIO; + XUIO_XUZC_RW(xuio) = ioflag; + ZFS_EXIT(zfsvfs); + return (0); +} + +/*ARGSUSED*/ +static int +zfs_retzcbuf(vnode_t *vp, xuio_t *xuio, cred_t *cr, caller_context_t *ct) +{ + int i; + arc_buf_t *abuf; + int ioflag = XUIO_XUZC_RW(xuio); + + ASSERT(xuio->xu_type == UIOTYPE_ZEROCOPY); + + i = dmu_xuio_cnt(xuio); + while (i-- > 0) { + abuf = dmu_xuio_arcbuf(xuio, i); + /* + * if abuf == NULL, it must be a write buffer + * that has been returned in zfs_write(). + */ + if (abuf) + dmu_return_arcbuf(abuf); + ASSERT(abuf || ioflag == UIO_WRITE); + } + + dmu_xuio_fini(xuio); + return (0); +} + +/* * Predeclare these here so that the compiler assumes that * this is an "old style" function declaration that does * not include arguments => we won't get type mismatch errors @@ -4611,6 +5083,8 @@ const fs_operation_def_t zfs_fvnodeops_template[] = { VOPNAME_GETSECATTR, { .vop_getsecattr = zfs_getsecattr }, VOPNAME_SETSECATTR, { .vop_setsecattr = zfs_setsecattr }, VOPNAME_VNEVENT, { .vop_vnevent = fs_vnevent_support }, + VOPNAME_REQZCBUF, { .vop_reqzcbuf = zfs_reqzcbuf }, + VOPNAME_RETZCBUF, { .vop_retzcbuf = zfs_retzcbuf }, NULL, NULL }; diff --git a/module/zfs/zfs_znode.c b/module/zfs/zfs_znode.c index f99e72f1d..24bd3ddcd 100644 --- a/module/zfs/zfs_znode.c +++ b/module/zfs/zfs_znode.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* Portions Copyright 2007 Jeremy Teo */ @@ -52,6 +51,7 @@ #include <sys/zfs_ioctl.h> #include <sys/zfs_rlock.h> #include <sys/zfs_fuid.h> +#include <sys/dnode.h> #include <sys/fs/zfs.h> #include <sys/kidmap.h> #endif /* _KERNEL */ @@ -61,8 +61,11 @@ #include <sys/stat.h> #include <sys/zap.h> #include <sys/zfs_znode.h> +#include <sys/sa.h> +#include <sys/zfs_sa.h> #include "zfs_prop.h" +#include "zfs_comutil.h" /* * Define ZNODE_STATS to turn on statistic gathering. By default, it is only @@ -131,7 +134,6 @@ zfs_znode_cache_constructor(void *buf, void *arg, int kmflags) avl_create(&zp->z_range_avl, zfs_range_compare, sizeof (rl_t), offsetof(rl_t, r_node)); - zp->z_dbuf = NULL; zp->z_dirlocks = NULL; zp->z_acl_cached = NULL; return (0); @@ -154,7 +156,6 @@ zfs_znode_cache_destructor(void *buf, void *arg) avl_destroy(&zp->z_range_avl); mutex_destroy(&zp->z_range_lock); - ASSERT(zp->z_dbuf == NULL); ASSERT(zp->z_dirlocks == NULL); ASSERT(zp->z_acl_cached == NULL); } @@ -198,24 +199,26 @@ zfs_znode_move_impl(znode_t *ozp, znode_t *nzp) nzp->z_last_itx = ozp->z_last_itx; nzp->z_gen = ozp->z_gen; nzp->z_sync_cnt = ozp->z_sync_cnt; - nzp->z_phys = ozp->z_phys; - nzp->z_dbuf = ozp->z_dbuf; + nzp->z_is_sa = ozp->z_is_sa; + nzp->z_sa_hdl = ozp->z_sa_hdl; + bcopy(ozp->z_atime, nzp->z_atime, sizeof (uint64_t) * 2); + nzp->z_links = ozp->z_links; + nzp->z_size = ozp->z_size; + nzp->z_pflags = ozp->z_pflags; + nzp->z_uid = ozp->z_uid; + nzp->z_gid = ozp->z_gid; + nzp->z_mode = ozp->z_mode; /* - * Release any cached ACL, since it *may* have - * zfs_acl_node_t's that directly references an - * embedded ACL in the zp_acl of the old znode_phys_t - * - * It will be recached the next time the ACL is needed. + * Since this is just an idle znode and kmem is already dealing with + * memory pressure, release any cached ACL. */ if (ozp->z_acl_cached) { zfs_acl_free(ozp->z_acl_cached); ozp->z_acl_cached = NULL; } - /* Update back pointers. */ - (void) dmu_buf_update_user(nzp->z_dbuf, ozp, nzp, &nzp->z_phys, - znode_evict_error); + sa_set_userp(nzp->z_sa_hdl, nzp); /* * Invalidate the original znode by clearing fields that provide a @@ -223,7 +226,7 @@ zfs_znode_move_impl(znode_t *ozp, znode_t *nzp) * ensure that zfs_znode_move() recognizes the znode as invalid in any * subsequent callback. */ - ozp->z_dbuf = NULL; + ozp->z_sa_hdl = NULL; POINTER_INVALIDATE(&ozp->z_zfsvfs); } @@ -478,6 +481,7 @@ zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx) sharezp->z_unlinked = 0; sharezp->z_atime_dirty = 0; sharezp->z_zfsvfs = zfsvfs; + sharezp->z_is_sa = zfsvfs->z_use_sa; vp = ZTOV(sharezp); vn_reinit(vp); @@ -485,8 +489,7 @@ zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx) VERIFY(0 == zfs_acl_ids_create(sharezp, IS_ROOT_NODE, &vattr, kcred, NULL, &acl_ids)); - zfs_mknode(sharezp, &vattr, tx, kcred, IS_ROOT_NODE, - &zp, 0, &acl_ids); + zfs_mknode(sharezp, &vattr, tx, kcred, IS_ROOT_NODE, &zp, &acl_ids); ASSERT3P(zp, ==, sharezp); ASSERT(!vn_in_dnlc(ZTOV(sharezp))); /* not valid to move */ POINTER_INVALIDATE(&sharezp->z_zfsvfs); @@ -496,8 +499,7 @@ zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx) zfs_acl_ids_free(&acl_ids); ZTOV(sharezp)->v_count = 0; - dmu_buf_rele(sharezp->z_dbuf, NULL); - sharezp->z_dbuf = NULL; + sa_handle_destroy(sharezp->z_sa_hdl); kmem_cache_free(znode_cache, sharezp); return (error); @@ -561,25 +563,25 @@ zfs_cmpldev(uint64_t dev) } static void -zfs_znode_dmu_init(zfsvfs_t *zfsvfs, znode_t *zp, dmu_buf_t *db) +zfs_znode_sa_init(zfsvfs_t *zfsvfs, znode_t *zp, + dmu_buf_t *db, dmu_object_type_t obj_type, sa_handle_t *sa_hdl) { - znode_t *nzp; - ASSERT(!POINTER_IS_VALID(zp->z_zfsvfs) || (zfsvfs == zp->z_zfsvfs)); ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zfsvfs, zp->z_id))); mutex_enter(&zp->z_lock); - ASSERT(zp->z_dbuf == NULL); - zp->z_dbuf = db; - nzp = dmu_buf_set_user_ie(db, zp, &zp->z_phys, znode_evict_error); + ASSERT(zp->z_sa_hdl == NULL); + ASSERT(zp->z_acl_cached == NULL); + if (sa_hdl == NULL) { + VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, zp, + SA_HDL_SHARED, &zp->z_sa_hdl)); + } else { + zp->z_sa_hdl = sa_hdl; + sa_set_userp(sa_hdl, zp); + } - /* - * there should be no - * concurrent zgets on this object. - */ - if (nzp != NULL) - panic("existing znode %p for dbuf %p", (void *)nzp, (void *)db); + zp->z_is_sa = (obj_type == DMU_OT_SA) ? B_TRUE : B_FALSE; /* * Slap on VROOT if we are the root znode @@ -594,14 +596,12 @@ zfs_znode_dmu_init(zfsvfs_t *zfsvfs, znode_t *zp, dmu_buf_t *db) void zfs_znode_dmu_fini(znode_t *zp) { - dmu_buf_t *db = zp->z_dbuf; ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zp->z_zfsvfs, zp->z_id)) || zp->z_unlinked || RW_WRITE_HELD(&zp->z_zfsvfs->z_teardown_inactive_lock)); - ASSERT(zp->z_dbuf != NULL); - zp->z_dbuf = NULL; - VERIFY(zp == dmu_buf_update_user(db, zp, NULL, NULL, NULL)); - dmu_buf_rele(db, NULL); + + sa_handle_destroy(zp->z_sa_hdl); + zp->z_sa_hdl = NULL; } /* @@ -612,22 +612,27 @@ zfs_znode_dmu_fini(znode_t *zp) * return the znode */ static znode_t * -zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) +zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz, + dmu_object_type_t obj_type, sa_handle_t *hdl) { znode_t *zp; vnode_t *vp; + uint64_t mode; + uint64_t parent; + uint64_t uid, gid; + sa_bulk_attr_t bulk[9]; + int count = 0; zp = kmem_cache_alloc(znode_cache, KM_SLEEP); ASSERT(zp->z_dirlocks == NULL); - ASSERT(zp->z_dbuf == NULL); ASSERT(!POINTER_IS_VALID(zp->z_zfsvfs)); /* * Defer setting z_zfsvfs until the znode is ready to be a candidate for * the zfs_znode_move() callback. */ - zp->z_phys = NULL; + zp->z_sa_hdl = NULL; zp->z_unlinked = 0; zp->z_atime_dirty = 0; zp->z_mapcnt = 0; @@ -640,16 +645,41 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) vp = ZTOV(zp); vn_reinit(vp); - zfs_znode_dmu_init(zfsvfs, zp, db); - - zp->z_gen = zp->z_phys->zp_gen; + zfs_znode_sa_init(zfsvfs, zp, db, obj_type, hdl); + + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GEN(zfsvfs), NULL, &zp->z_gen, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL, + &zp->z_size, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL, + &zp->z_links, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL, &parent, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL, + &zp->z_atime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, + &uid, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, + &gid, 8); + + if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count) != 0 || zp->z_gen == 0) { + if (hdl == NULL) + sa_handle_destroy(zp->z_sa_hdl); + kmem_cache_free(znode_cache, zp); + return (NULL); + } + zp->z_uid = zfs_fuid_map_id(zfsvfs, uid, CRED(), ZFS_OWNER); + zp->z_gid = zfs_fuid_map_id(zfsvfs, gid, CRED(), ZFS_GROUP); + zp->z_mode = mode; vp->v_vfsp = zfsvfs->z_parent->z_vfs; - vp->v_type = IFTOVT((mode_t)zp->z_phys->zp_mode); + + vp->v_type = IFTOVT((mode_t)mode); switch (vp->v_type) { case VDIR: - if (zp->z_phys->zp_flags & ZFS_XATTR) { + if (zp->z_pflags & ZFS_XATTR) { vn_setops(vp, zfs_xdvnodeops); vp->v_flag |= V_XATTRDIR; } else { @@ -659,7 +689,13 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) break; case VBLK: case VCHR: - vp->v_rdev = zfs_cmpldev(zp->z_phys->zp_rdev); + { + uint64_t rdev; + VERIFY(sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zfsvfs), + &rdev, sizeof (rdev)) == 0); + + vp->v_rdev = zfs_cmpldev(rdev); + } /*FALLTHROUGH*/ case VFIFO: case VSOCK: @@ -668,10 +704,12 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) break; case VREG: vp->v_flag |= VMODSORT; - if (zp->z_phys->zp_parent == zfsvfs->z_shares_dir) + if (parent == zfsvfs->z_shares_dir) { + ASSERT(uid == 0 && gid == 0); vn_setops(vp, zfs_sharevnodeops); - else + } else { vn_setops(vp, zfs_fvnodeops); + } break; case VLNK: vn_setops(vp, zfs_symvnodeops); @@ -695,6 +733,9 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) return (zp); } +static uint64_t empty_xattr; +static uint64_t pad[4]; +static zfs_acl_phys_t acl_phys; /* * Create a new DMU object to hold a zfs znode. * @@ -705,7 +746,6 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) * flag - flags: * IS_ROOT_NODE - new object will be root * IS_XATTR - new object is an attribute - * IS_REPLAY - intent log replay * bonuslen - length of bonus buffer * setaclp - File/Dir initial ACL * fuidp - Tracks fuid allocation. @@ -715,20 +755,28 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) */ void zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr, - uint_t flag, znode_t **zpp, int bonuslen, zfs_acl_ids_t *acl_ids) + uint_t flag, znode_t **zpp, zfs_acl_ids_t *acl_ids) { - dmu_buf_t *db; - znode_phys_t *pzp; + uint64_t crtime[2], atime[2], mtime[2], ctime[2]; + uint64_t mode, size, links, parent, pflags; + uint64_t dzp_pflags = 0; + uint64_t rdev = 0; zfsvfs_t *zfsvfs = dzp->z_zfsvfs; + dmu_buf_t *db; timestruc_t now; uint64_t gen, obj; int err; + int bonuslen; + sa_handle_t *sa_hdl; + dmu_object_type_t obj_type; + sa_bulk_attr_t sa_attrs[ZPL_END]; + int cnt = 0; + zfs_acl_locator_cb_t locate = { 0 }; ASSERT(vap && (vap->va_mask & (AT_TYPE|AT_MODE)) == (AT_TYPE|AT_MODE)); if (zfsvfs->z_replay) { obj = vap->va_nodeid; - flag |= IS_REPLAY; now = vap->va_ctime; /* see zfs_replay_create() */ gen = vap->va_nblocks; /* ditto */ } else { @@ -737,6 +785,10 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr, gen = dmu_tx_get_txg(tx); } + obj_type = zfsvfs->z_use_sa ? DMU_OT_SA : DMU_OT_ZNODE; + bonuslen = (obj_type == DMU_OT_SA) ? + DN_MAX_BONUSLEN : ZFS_OLD_ZNODE_PHYS_SIZE; + /* * Create a new DMU object. */ @@ -747,109 +799,215 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr, * assertions below. */ if (vap->va_type == VDIR) { - if (flag & IS_REPLAY) { + if (zfsvfs->z_replay) { err = zap_create_claim_norm(zfsvfs->z_os, obj, zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); ASSERT3U(err, ==, 0); } else { obj = zap_create_norm(zfsvfs->z_os, zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); } } else { - if (flag & IS_REPLAY) { + if (zfsvfs->z_replay) { err = dmu_object_claim(zfsvfs->z_os, obj, DMU_OT_PLAIN_FILE_CONTENTS, 0, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); ASSERT3U(err, ==, 0); } else { obj = dmu_object_alloc(zfsvfs->z_os, DMU_OT_PLAIN_FILE_CONTENTS, 0, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); } } - VERIFY(0 == dmu_bonus_hold(zfsvfs->z_os, obj, NULL, &db)); - dmu_buf_will_dirty(db, tx); - /* - * Initialize the znode physical data to zero. - */ - ASSERT(db->db_size >= sizeof (znode_phys_t)); - bzero(db->db_data, db->db_size); - pzp = db->db_data; + ZFS_OBJ_HOLD_ENTER(zfsvfs, obj); + VERIFY(0 == sa_buf_hold(zfsvfs->z_os, obj, NULL, &db)); /* * If this is the root, fix up the half-initialized parent pointer * to reference the just-allocated physical data area. */ if (flag & IS_ROOT_NODE) { - dzp->z_dbuf = db; - dzp->z_phys = pzp; dzp->z_id = obj; + } else { + dzp_pflags = dzp->z_pflags; } /* * If parent is an xattr, so am I. */ - if (dzp->z_phys->zp_flags & ZFS_XATTR) + if (dzp_pflags & ZFS_XATTR) { flag |= IS_XATTR; - - if (vap->va_type == VBLK || vap->va_type == VCHR) { - pzp->zp_rdev = zfs_expldev(vap->va_rdev); } if (zfsvfs->z_use_fuids) - pzp->zp_flags = ZFS_ARCHIVE | ZFS_AV_MODIFIED; + pflags = ZFS_ARCHIVE | ZFS_AV_MODIFIED; + else + pflags = 0; if (vap->va_type == VDIR) { - pzp->zp_size = 2; /* contents ("." and "..") */ - pzp->zp_links = (flag & (IS_ROOT_NODE | IS_XATTR)) ? 2 : 1; + size = 2; /* contents ("." and "..") */ + links = (flag & (IS_ROOT_NODE | IS_XATTR)) ? 2 : 1; + } else { + size = links = 0; } - pzp->zp_parent = dzp->z_id; + if (vap->va_type == VBLK || vap->va_type == VCHR) { + rdev = zfs_expldev(vap->va_rdev); + } + + parent = dzp->z_id; + mode = acl_ids->z_mode; if (flag & IS_XATTR) - pzp->zp_flags |= ZFS_XATTR; + pflags |= ZFS_XATTR; - pzp->zp_gen = gen; + /* + * No execs denied will be deterimed when zfs_mode_compute() is called. + */ + pflags |= acl_ids->z_aclp->z_hints & + (ZFS_ACL_TRIVIAL|ZFS_INHERIT_ACE|ZFS_ACL_AUTO_INHERIT| + ZFS_ACL_DEFAULTED|ZFS_ACL_PROTECTED); - ZFS_TIME_ENCODE(&now, pzp->zp_crtime); - ZFS_TIME_ENCODE(&now, pzp->zp_ctime); + ZFS_TIME_ENCODE(&now, crtime); + ZFS_TIME_ENCODE(&now, ctime); if (vap->va_mask & AT_ATIME) { - ZFS_TIME_ENCODE(&vap->va_atime, pzp->zp_atime); + ZFS_TIME_ENCODE(&vap->va_atime, atime); } else { - ZFS_TIME_ENCODE(&now, pzp->zp_atime); + ZFS_TIME_ENCODE(&now, atime); } if (vap->va_mask & AT_MTIME) { - ZFS_TIME_ENCODE(&vap->va_mtime, pzp->zp_mtime); + ZFS_TIME_ENCODE(&vap->va_mtime, mtime); + } else { + ZFS_TIME_ENCODE(&now, mtime); + } + + /* Now add in all of the "SA" attributes */ + VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, NULL, SA_HDL_SHARED, + &sa_hdl)); + + /* + * Setup the array of attributes to be replaced/set on the new file + * + * order for DMU_OT_ZNODE is critical since it needs to be constructed + * in the old znode_phys_t format. Don't change this ordering + */ + + if (obj_type == DMU_OT_ZNODE) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs), + NULL, &atime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs), + NULL, &mtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs), + NULL, &ctime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs), + NULL, &crtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs), + NULL, &gen, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs), + NULL, &mode, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs), + NULL, &size, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs), + NULL, &parent, 8); } else { - ZFS_TIME_ENCODE(&now, pzp->zp_mtime); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs), + NULL, &mode, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs), + NULL, &size, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs), + NULL, &gen, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL, + &acl_ids->z_fuid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL, + &acl_ids->z_fgid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs), + NULL, &parent, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs), + NULL, &pflags, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs), + NULL, &atime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs), + NULL, &mtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs), + NULL, &ctime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs), + NULL, &crtime, 16); + } + + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_LINKS(zfsvfs), NULL, &links, 8); + + if (obj_type == DMU_OT_ZNODE) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_XATTR(zfsvfs), NULL, + &empty_xattr, 8); } + if (obj_type == DMU_OT_ZNODE || + (vap->va_type == VBLK || vap->va_type == VCHR)) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_RDEV(zfsvfs), + NULL, &rdev, 8); + + } + if (obj_type == DMU_OT_ZNODE) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs), + NULL, &pflags, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL, + &acl_ids->z_fuid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL, + &acl_ids->z_fgid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PAD(zfsvfs), NULL, pad, + sizeof (uint64_t) * 4); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ZNODE_ACL(zfsvfs), NULL, + &acl_phys, sizeof (zfs_acl_phys_t)); + } else if (acl_ids->z_aclp->z_version >= ZFS_ACL_VERSION_FUID) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_COUNT(zfsvfs), NULL, + &acl_ids->z_aclp->z_acl_count, 8); + locate.cb_aclp = acl_ids->z_aclp; + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_ACES(zfsvfs), + zfs_acl_data_locator, &locate, + acl_ids->z_aclp->z_acl_bytes); + mode = zfs_mode_compute(mode, acl_ids->z_aclp, &pflags, + acl_ids->z_fuid, acl_ids->z_fgid); + } + + VERIFY(sa_replace_all_by_template(sa_hdl, sa_attrs, cnt, tx) == 0); - pzp->zp_mode = MAKEIMODE(vap->va_type, vap->va_mode); if (!(flag & IS_ROOT_NODE)) { - ZFS_OBJ_HOLD_ENTER(zfsvfs, obj); - *zpp = zfs_znode_alloc(zfsvfs, db, 0); - ZFS_OBJ_HOLD_EXIT(zfsvfs, obj); + *zpp = zfs_znode_alloc(zfsvfs, db, 0, obj_type, sa_hdl); + ASSERT(*zpp != NULL); } else { /* * If we are creating the root node, the "parent" we * passed in is the znode for the root. */ *zpp = dzp; + + (*zpp)->z_sa_hdl = sa_hdl; } - pzp->zp_uid = acl_ids->z_fuid; - pzp->zp_gid = acl_ids->z_fgid; - pzp->zp_mode = acl_ids->z_mode; - VERIFY(0 == zfs_aclset_common(*zpp, acl_ids->z_aclp, cr, tx)); + + (*zpp)->z_pflags = pflags; + (*zpp)->z_mode = mode; + if (vap->va_mask & AT_XVATTR) - zfs_xvattr_set(*zpp, (xvattr_t *)vap); + zfs_xvattr_set(*zpp, (xvattr_t *)vap, tx); + + if (obj_type == DMU_OT_ZNODE || + acl_ids->z_aclp->z_version < ZFS_ACL_VERSION_FUID) { + err = zfs_aclset_common(*zpp, acl_ids->z_aclp, cr, tx); + ASSERT3P(err, ==, 0); + } + ZFS_OBJ_HOLD_EXIT(zfsvfs, obj); } +/* + * zfs_xvattr_set only updates the in-core attributes + * it is assumed the caller will be doing an sa_bulk_update + * to push the changes out + */ void -zfs_xvattr_set(znode_t *zp, xvattr_t *xvap) +zfs_xvattr_set(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx) { xoptattr_t *xoap; @@ -857,60 +1015,76 @@ zfs_xvattr_set(znode_t *zp, xvattr_t *xvap) ASSERT(xoap); if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) { - ZFS_TIME_ENCODE(&xoap->xoa_createtime, zp->z_phys->zp_crtime); + uint64_t times[2]; + ZFS_TIME_ENCODE(&xoap->xoa_createtime, times); + (void) sa_update(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), + ×, sizeof (times), tx); XVA_SET_RTN(xvap, XAT_CREATETIME); } if (XVA_ISSET_REQ(xvap, XAT_READONLY)) { - ZFS_ATTR_SET(zp, ZFS_READONLY, xoap->xoa_readonly); + ZFS_ATTR_SET(zp, ZFS_READONLY, xoap->xoa_readonly, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_READONLY); } if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) { - ZFS_ATTR_SET(zp, ZFS_HIDDEN, xoap->xoa_hidden); + ZFS_ATTR_SET(zp, ZFS_HIDDEN, xoap->xoa_hidden, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_HIDDEN); } if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) { - ZFS_ATTR_SET(zp, ZFS_SYSTEM, xoap->xoa_system); + ZFS_ATTR_SET(zp, ZFS_SYSTEM, xoap->xoa_system, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_SYSTEM); } if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) { - ZFS_ATTR_SET(zp, ZFS_ARCHIVE, xoap->xoa_archive); + ZFS_ATTR_SET(zp, ZFS_ARCHIVE, xoap->xoa_archive, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_ARCHIVE); } if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) { - ZFS_ATTR_SET(zp, ZFS_IMMUTABLE, xoap->xoa_immutable); + ZFS_ATTR_SET(zp, ZFS_IMMUTABLE, xoap->xoa_immutable, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_IMMUTABLE); } if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) { - ZFS_ATTR_SET(zp, ZFS_NOUNLINK, xoap->xoa_nounlink); + ZFS_ATTR_SET(zp, ZFS_NOUNLINK, xoap->xoa_nounlink, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_NOUNLINK); } if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) { - ZFS_ATTR_SET(zp, ZFS_APPENDONLY, xoap->xoa_appendonly); + ZFS_ATTR_SET(zp, ZFS_APPENDONLY, xoap->xoa_appendonly, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_APPENDONLY); } if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) { - ZFS_ATTR_SET(zp, ZFS_NODUMP, xoap->xoa_nodump); + ZFS_ATTR_SET(zp, ZFS_NODUMP, xoap->xoa_nodump, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_NODUMP); } if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) { - ZFS_ATTR_SET(zp, ZFS_OPAQUE, xoap->xoa_opaque); + ZFS_ATTR_SET(zp, ZFS_OPAQUE, xoap->xoa_opaque, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_OPAQUE); } if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) { ZFS_ATTR_SET(zp, ZFS_AV_QUARANTINED, - xoap->xoa_av_quarantined); + xoap->xoa_av_quarantined, zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_AV_QUARANTINED); } if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) { - ZFS_ATTR_SET(zp, ZFS_AV_MODIFIED, xoap->xoa_av_modified); + ZFS_ATTR_SET(zp, ZFS_AV_MODIFIED, xoap->xoa_av_modified, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_AV_MODIFIED); } if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) { - (void) memcpy(zp->z_phys + 1, xoap->xoa_av_scanstamp, - sizeof (xoap->xoa_av_scanstamp)); - zp->z_phys->zp_flags |= ZFS_BONUS_SCANSTAMP; + zfs_sa_set_scanstamp(zp, xvap, tx); XVA_SET_RTN(xvap, XAT_AV_SCANSTAMP); } + if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) { + ZFS_ATTR_SET(zp, ZFS_REPARSE, xoap->xoa_reparse, + zp->z_pflags, tx); + XVA_SET_RTN(xvap, XAT_REPARSE); + } } int @@ -920,35 +1094,42 @@ zfs_zget(zfsvfs_t *zfsvfs, uint64_t obj_num, znode_t **zpp) dmu_buf_t *db; znode_t *zp; int err; + sa_handle_t *hdl; *zpp = NULL; ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num); - err = dmu_bonus_hold(zfsvfs->z_os, obj_num, NULL, &db); + err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db); if (err) { ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (err); } dmu_object_info_from_db(db, &doi); - if (doi.doi_bonus_type != DMU_OT_ZNODE || - doi.doi_bonus_size < sizeof (znode_phys_t)) { - dmu_buf_rele(db, NULL); + if (doi.doi_bonus_type != DMU_OT_SA && + (doi.doi_bonus_type != DMU_OT_ZNODE || + (doi.doi_bonus_type == DMU_OT_ZNODE && + doi.doi_bonus_size < sizeof (znode_phys_t)))) { + sa_buf_rele(db, NULL); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (EINVAL); } - zp = dmu_buf_get_user(db); - if (zp != NULL) { - mutex_enter(&zp->z_lock); + hdl = dmu_buf_get_user(db); + if (hdl != NULL) { + zp = sa_get_userdata(hdl); + /* - * Since we do immediate eviction of the z_dbuf, we - * should never find a dbuf with a znode that doesn't - * know about the dbuf. + * Since "SA" does immediate eviction we + * should never find a sa handle that doesn't + * know about the znode. */ - ASSERT3P(zp->z_dbuf, ==, db); + + ASSERT3P(zp, !=, NULL); + + mutex_enter(&zp->z_lock); ASSERT3U(zp->z_id, ==, obj_num); if (zp->z_unlinked) { err = ENOENT; @@ -957,7 +1138,7 @@ zfs_zget(zfsvfs_t *zfsvfs, uint64_t obj_num, znode_t **zpp) *zpp = zp; err = 0; } - dmu_buf_rele(db, NULL); + sa_buf_rele(db, NULL); mutex_exit(&zp->z_lock); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (err); @@ -965,11 +1146,24 @@ zfs_zget(zfsvfs_t *zfsvfs, uint64_t obj_num, znode_t **zpp) /* * Not found create new znode/vnode + * but only if file exists. + * + * There is a small window where zfs_vget() could + * find this object while a file create is still in + * progress. This is checked for in zfs_znode_alloc() + * + * if zfs_znode_alloc() fails it will drop the hold on the + * bonus buffer. */ - zp = zfs_znode_alloc(zfsvfs, db, doi.doi_data_block_size); + zp = zfs_znode_alloc(zfsvfs, db, doi.doi_data_block_size, + doi.doi_bonus_type, NULL); + if (zp == NULL) { + err = ENOENT; + } else { + *zpp = zp; + } ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); - *zpp = zp; - return (0); + return (err); } int @@ -979,32 +1173,76 @@ zfs_rezget(znode_t *zp) dmu_object_info_t doi; dmu_buf_t *db; uint64_t obj_num = zp->z_id; + uint64_t mode; + uint64_t uid, gid; + sa_bulk_attr_t bulk[8]; int err; + int count = 0; + uint64_t gen; ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num); - err = dmu_bonus_hold(zfsvfs->z_os, obj_num, NULL, &db); + mutex_enter(&zp->z_acl_lock); + if (zp->z_acl_cached) { + zfs_acl_free(zp->z_acl_cached); + zp->z_acl_cached = NULL; + } + + mutex_exit(&zp->z_acl_lock); + ASSERT(zp->z_sa_hdl == NULL); + err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db); if (err) { ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (err); } dmu_object_info_from_db(db, &doi); - if (doi.doi_bonus_type != DMU_OT_ZNODE || - doi.doi_bonus_size < sizeof (znode_phys_t)) { - dmu_buf_rele(db, NULL); + if (doi.doi_bonus_type != DMU_OT_SA && + (doi.doi_bonus_type != DMU_OT_ZNODE || + (doi.doi_bonus_type == DMU_OT_ZNODE && + doi.doi_bonus_size < sizeof (znode_phys_t)))) { + sa_buf_rele(db, NULL); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (EINVAL); } - if (((znode_phys_t *)db->db_data)->zp_gen != zp->z_gen) { - dmu_buf_rele(db, NULL); + zfs_znode_sa_init(zfsvfs, zp, db, doi.doi_bonus_type, NULL); + + /* reload cached values */ + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GEN(zfsvfs), NULL, + &gen, sizeof (gen)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL, + &zp->z_size, sizeof (zp->z_size)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL, + &zp->z_links, sizeof (zp->z_links)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, sizeof (zp->z_pflags)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL, + &zp->z_atime, sizeof (zp->z_atime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, + &uid, sizeof (uid)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, + &gid, sizeof (gid)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, + &mode, sizeof (mode)); + + zp->z_mode = mode; + + if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) { + zfs_znode_dmu_fini(zp); + ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); + return (EIO); + } + + if (gen != zp->z_gen) { + zfs_znode_dmu_fini(zp); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (EIO); } - zfs_znode_dmu_init(zfsvfs, zp, db); - zp->z_unlinked = (zp->z_phys->zp_links == 0); + zp->z_uid = zfs_fuid_map_id(zfsvfs, uid, CRED(), ZFS_OWNER); + zp->z_gid = zfs_fuid_map_id(zfsvfs, gid, CRED(), ZFS_GROUP); + zp->z_unlinked = (zp->z_links == 0); zp->z_blksz = doi.doi_data_block_size; ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); @@ -1018,7 +1256,7 @@ zfs_znode_delete(znode_t *zp, dmu_tx_t *tx) zfsvfs_t *zfsvfs = zp->z_zfsvfs; objset_t *os = zfsvfs->z_os; uint64_t obj = zp->z_id; - uint64_t acl_obj = zp->z_phys->zp_acl.z_acl_extern_obj; + uint64_t acl_obj = ZFS_EXTERNAL_ACL(zp); ZFS_OBJ_HOLD_ENTER(zfsvfs, obj); if (acl_obj) @@ -1036,7 +1274,7 @@ zfs_zinactive(znode_t *zp) zfsvfs_t *zfsvfs = zp->z_zfsvfs; uint64_t z_id = zp->z_id; - ASSERT(zp->z_dbuf && zp->z_phys); + ASSERT(zp->z_sa_hdl); /* * Don't allow a zfs_zget() while were trying to release this znode @@ -1075,6 +1313,7 @@ zfs_zinactive(znode_t *zp) zfs_rmnode(zp); return; } + mutex_exit(&zp->z_lock); zfs_znode_dmu_fini(zp); ZFS_OBJ_HOLD_EXIT(zfsvfs, z_id); @@ -1106,59 +1345,40 @@ zfs_znode_free(znode_t *zp) } void -zfs_time_stamper_locked(znode_t *zp, uint_t flag, dmu_tx_t *tx) +zfs_tstamp_update_setup(znode_t *zp, uint_t flag, uint64_t mtime[2], + uint64_t ctime[2], boolean_t have_tx) { timestruc_t now; - ASSERT(MUTEX_HELD(&zp->z_lock)); - gethrestime(&now); - if (tx) { - dmu_buf_will_dirty(zp->z_dbuf, tx); + if (have_tx) { /* will sa_bulk_update happen really soon? */ zp->z_atime_dirty = 0; zp->z_seq++; } else { zp->z_atime_dirty = 1; } - if (flag & AT_ATIME) - ZFS_TIME_ENCODE(&now, zp->z_phys->zp_atime); + if (flag & AT_ATIME) { + ZFS_TIME_ENCODE(&now, zp->z_atime); + } if (flag & AT_MTIME) { - ZFS_TIME_ENCODE(&now, zp->z_phys->zp_mtime); - if (zp->z_zfsvfs->z_use_fuids) - zp->z_phys->zp_flags |= (ZFS_ARCHIVE | ZFS_AV_MODIFIED); + ZFS_TIME_ENCODE(&now, mtime); + if (zp->z_zfsvfs->z_use_fuids) { + zp->z_pflags |= (ZFS_ARCHIVE | + ZFS_AV_MODIFIED); + } } if (flag & AT_CTIME) { - ZFS_TIME_ENCODE(&now, zp->z_phys->zp_ctime); + ZFS_TIME_ENCODE(&now, ctime); if (zp->z_zfsvfs->z_use_fuids) - zp->z_phys->zp_flags |= ZFS_ARCHIVE; + zp->z_pflags |= ZFS_ARCHIVE; } } /* - * Update the requested znode timestamps with the current time. - * If we are in a transaction, then go ahead and mark the znode - * dirty in the transaction so the timestamps will go to disk. - * Otherwise, we will get pushed next time the znode is updated - * in a transaction, or when this znode eventually goes inactive. - * - * Why is this OK? - * 1 - Only the ACCESS time is ever updated outside of a transaction. - * 2 - Multiple consecutive updates will be collapsed into a single - * znode update by the transaction grouping semantics of the DMU. - */ -void -zfs_time_stamper(znode_t *zp, uint_t flag, dmu_tx_t *tx) -{ - mutex_enter(&zp->z_lock); - zfs_time_stamper_locked(zp, flag, tx); - mutex_exit(&zp->z_lock); -} - -/* * Grow the block size for a file. * * IN: zp - znode of file to free data in. @@ -1180,17 +1400,18 @@ zfs_grow_blocksize(znode_t *zp, uint64_t size, dmu_tx_t *tx) * we will not grow. If there is more than one block in a file, * the blocksize cannot change. */ - if (zp->z_blksz && zp->z_phys->zp_size > zp->z_blksz) + if (zp->z_blksz && zp->z_size > zp->z_blksz) return; error = dmu_object_set_blocksize(zp->z_zfsvfs->z_os, zp->z_id, size, 0, tx); + if (error == ENOTSUP) return; ASSERT3U(error, ==, 0); /* What blocksize did we actually get? */ - dmu_object_size_from_db(zp->z_dbuf, &zp->z_blksz, &dummy); + dmu_object_size_from_db(sa_get_db(zp->z_sa_hdl), &zp->z_blksz, &dummy); } /* @@ -1233,13 +1454,14 @@ zfs_extend(znode_t *zp, uint64_t end) /* * Nothing to do if file already at desired length. */ - if (end <= zp->z_phys->zp_size) { + if (end <= zp->z_size) { zfs_range_unlock(rl); return (0); } top: tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); if (end > zp->z_blksz && (!ISP2(zp->z_blksz) || zp->z_blksz < zfsvfs->z_max_blksz)) { /* @@ -1267,12 +1489,14 @@ top: zfs_range_unlock(rl); return (error); } - dmu_buf_will_dirty(zp->z_dbuf, tx); if (newblksz) zfs_grow_blocksize(zp, newblksz, tx); - zp->z_phys->zp_size = end; + zp->z_size = end; + + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zp->z_zfsvfs), + &zp->z_size, sizeof (zp->z_size), tx)); zfs_range_unlock(rl); @@ -1306,13 +1530,13 @@ zfs_free_range(znode_t *zp, uint64_t off, uint64_t len) /* * Nothing to do if file already at desired length. */ - if (off >= zp->z_phys->zp_size) { + if (off >= zp->z_size) { zfs_range_unlock(rl); return (0); } - if (off + len > zp->z_phys->zp_size) - len = zp->z_phys->zp_size - off; + if (off + len > zp->z_size) + len = zp->z_size - off; error = dmu_free_long_range(zfsvfs->z_os, zp->z_id, off, len); @@ -1347,7 +1571,7 @@ zfs_trunc(znode_t *zp, uint64_t end) /* * Nothing to do if file already at desired length. */ - if (end >= zp->z_phys->zp_size) { + if (end >= zp->z_size) { zfs_range_unlock(rl); return (0); } @@ -1359,7 +1583,8 @@ zfs_trunc(znode_t *zp, uint64_t end) } top: tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { if (error == ERESTART) { @@ -1371,9 +1596,11 @@ top: zfs_range_unlock(rl); return (error); } - dmu_buf_will_dirty(zp->z_dbuf, tx); - zp->z_phys->zp_size = end; + zp->z_size = end; + + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zp->z_zfsvfs), + &zp->z_size, sizeof (zp->z_size), tx)); dmu_tx_commit(tx); @@ -1425,9 +1652,17 @@ zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log) dmu_tx_t *tx; zfsvfs_t *zfsvfs = zp->z_zfsvfs; zilog_t *zilog = zfsvfs->z_log; + uint64_t mode; + uint64_t mtime[2], ctime[2]; + sa_bulk_attr_t bulk[3]; + int count = 0; int error; - if (off > zp->z_phys->zp_size) { + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_MODE(zfsvfs), &mode, + sizeof (mode))) != 0) + return (error); + + if (off > zp->z_size) { error = zfs_extend(zp, off+len); if (error == 0 && log) goto log; @@ -1438,8 +1673,9 @@ zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log) /* * Check for any locks in the region to be freed. */ - if (MANDLOCK(vp, (mode_t)zp->z_phys->zp_mode)) { - uint64_t length = (len ? len : zp->z_phys->zp_size - off); + + if (MANDLOCK(vp, (mode_t)mode)) { + uint64_t length = (len ? len : zp->z_size - off); if (error = chklock(vp, FWRITE, off, length, flag, NULL)) return (error); } @@ -1448,14 +1684,15 @@ zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log) error = zfs_trunc(zp, off); } else { if ((error = zfs_free_range(zp, off, len)) == 0 && - off + len > zp->z_phys->zp_size) + off + len > zp->z_size) error = zfs_extend(zp, off+len); } if (error || !log) return (error); log: tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { if (error == ERESTART) { @@ -1467,7 +1704,14 @@ log: return (error); } - zfs_time_stamper(zp, CONTENT_MODIFIED, tx); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, mtime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, ctime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), + NULL, &zp->z_pflags, 8); + zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, B_TRUE); + error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); + ASSERT(error == 0); + zfs_log_truncate(zilog, tx, TX_TRUNCATE, zp, off, len); dmu_tx_commit(tx); @@ -1478,11 +1722,12 @@ void zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) { zfsvfs_t zfsvfs; - uint64_t moid, obj, version; + uint64_t moid, obj, sa_obj, version; uint64_t sense = ZFS_CASE_SENSITIVE; uint64_t norm = 0; nvpair_t *elem; int error; + int i; znode_t *rootzp = NULL; vnode_t *vp; vattr_t vattr; @@ -1504,12 +1749,7 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) /* * Set starting attributes. */ - if (spa_version(dmu_objset_spa(os)) >= SPA_VERSION_USERSPACE) - version = ZPL_VERSION; - else if (spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID) - version = ZPL_VERSION_USERSPACE - 1; - else - version = ZPL_VERSION_FUID - 1; + version = zfs_zpl_version_map(spa_version(dmu_objset_spa(os))); elem = NULL; while ((elem = nvlist_next_nvpair(zplprops, elem)) != NULL) { /* For the moment we expect all zpl props to be uint64_ts */ @@ -1535,6 +1775,18 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) error = zap_update(os, moid, ZPL_VERSION_STR, 8, 1, &version, tx); /* + * Create zap object used for SA attribute registration + */ + + if (version >= ZPL_VERSION_SA) { + sa_obj = zap_create(os, DMU_OT_SA_MASTER_NODE, + DMU_OT_NONE, 0, tx); + error = zap_add(os, moid, ZFS_SA_ATTRS, 8, 1, &sa_obj, tx); + ASSERT(error == 0); + } else { + sa_obj = 0; + } + /* * Create a delete queue. */ obj = zap_create(os, DMU_OT_UNLINKED_SET, DMU_OT_NONE, 0, tx); @@ -1555,6 +1807,7 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) rootzp = kmem_cache_alloc(znode_cache, KM_SLEEP); rootzp->z_unlinked = 0; rootzp->z_atime_dirty = 0; + rootzp->z_is_sa = USE_SA(version, os); vp = ZTOV(rootzp); vn_reinit(vp); @@ -1566,7 +1819,11 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) zfsvfs.z_parent = &zfsvfs; zfsvfs.z_version = version; zfsvfs.z_use_fuids = USE_FUIDS(version, os); + zfsvfs.z_use_sa = USE_SA(version, os); zfsvfs.z_norm = norm; + + zfsvfs.z_attr_table = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END); + /* * Fold case on file systems that are always or sometimes case * insensitive. @@ -1578,11 +1835,14 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) list_create(&zfsvfs.z_all_znodes, sizeof (znode_t), offsetof(znode_t, z_link_node)); + for (i = 0; i != ZFS_OBJ_MTX_SZ; i++) + mutex_init(&zfsvfs.z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL); + ASSERT(!POINTER_IS_VALID(rootzp->z_zfsvfs)); rootzp->z_zfsvfs = &zfsvfs; VERIFY(0 == zfs_acl_ids_create(rootzp, IS_ROOT_NODE, &vattr, cr, NULL, &acl_ids)); - zfs_mknode(rootzp, &vattr, tx, cr, IS_ROOT_NODE, &zp, 0, &acl_ids); + zfs_mknode(rootzp, &vattr, tx, cr, IS_ROOT_NODE, &zp, &acl_ids); ASSERT3P(zp, ==, rootzp); ASSERT(!vn_in_dnlc(ZTOV(rootzp))); /* not valid to move */ error = zap_add(os, moid, ZFS_ROOT_OBJ, 8, 1, &rootzp->z_id, tx); @@ -1591,8 +1851,7 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) POINTER_INVALIDATE(&rootzp->z_zfsvfs); ZTOV(rootzp)->v_count = 0; - dmu_buf_rele(rootzp->z_dbuf, NULL); - rootzp->z_dbuf = NULL; + sa_handle_destroy(rootzp->z_sa_hdl); kmem_cache_free(znode_cache, rootzp); /* @@ -1602,36 +1861,65 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) error = zfs_create_share_dir(&zfsvfs, tx); ASSERT(error == 0); + + for (i = 0; i != ZFS_OBJ_MTX_SZ; i++) + mutex_destroy(&zfsvfs.z_hold_mtx[i]); } #endif /* _KERNEL */ + /* * Given an object number, return its parent object number and whether * or not the object is an extended attribute directory. */ static int -zfs_obj_to_pobj(objset_t *osp, uint64_t obj, uint64_t *pobjp, int *is_xattrdir) +zfs_obj_to_pobj(objset_t *osp, uint64_t obj, uint64_t *pobjp, int *is_xattrdir, + sa_attr_type_t *sa_table) { dmu_buf_t *db; dmu_object_info_t doi; - znode_phys_t *zp; int error; - - if ((error = dmu_bonus_hold(osp, obj, FTAG, &db)) != 0) + uint64_t parent; + uint64_t pflags; + uint64_t mode; + sa_bulk_attr_t bulk[3]; + sa_handle_t *hdl; + int count = 0; + + if ((error = sa_buf_hold(osp, obj, FTAG, &db)) != 0) return (error); dmu_object_info_from_db(db, &doi); - if (doi.doi_bonus_type != DMU_OT_ZNODE || + if ((doi.doi_bonus_type != DMU_OT_SA && + doi.doi_bonus_type != DMU_OT_ZNODE) || + doi.doi_bonus_type == DMU_OT_ZNODE && doi.doi_bonus_size < sizeof (znode_phys_t)) { - dmu_buf_rele(db, FTAG); + sa_buf_rele(db, FTAG); return (EINVAL); } - zp = db->db_data; - *pobjp = zp->zp_parent; - *is_xattrdir = ((zp->zp_flags & ZFS_XATTR) != 0) && - S_ISDIR(zp->zp_mode); - dmu_buf_rele(db, FTAG); + if ((error = sa_handle_get(osp, obj, NULL, SA_HDL_PRIVATE, + &hdl)) != 0) { + sa_buf_rele(db, FTAG); + return (error); + } + + SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_PARENT], + NULL, &parent, 8); + SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_FLAGS], NULL, + &pflags, 8); + SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_MODE], NULL, + &mode, 8); + + if ((error = sa_bulk_lookup(hdl, bulk, count)) != 0) { + sa_buf_rele(db, FTAG); + sa_handle_destroy(hdl); + return (error); + } + *pobjp = parent; + *is_xattrdir = ((pflags & ZFS_XATTR) != 0) && S_ISDIR(mode); + sa_handle_destroy(hdl); + sa_buf_rele(db, FTAG); return (0); } @@ -1640,10 +1928,19 @@ int zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len) { char *path = buf + len - 1; + sa_attr_type_t *sa_table; int error; + uint64_t sa_obj = 0; *path = '\0'; + error = zap_lookup(osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1, &sa_obj); + + if (error != 0 && error != ENOENT) + return (error); + + sa_table = sa_setup(osp, sa_obj, zfs_attr_table, ZPL_END); + for (;;) { uint64_t pobj; char component[MAXNAMELEN + 2]; @@ -1651,7 +1948,7 @@ zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len) int is_xattrdir; if ((error = zfs_obj_to_pobj(osp, obj, &pobj, - &is_xattrdir)) != 0) + &is_xattrdir, sa_table)) != 0) break; if (pobj == obj) { @@ -1679,5 +1976,6 @@ zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len) if (error == 0) (void) memmove(buf, path, buf + len - path); + return (error); } diff --git a/module/zfs/zil.c b/module/zfs/zil.c index db3822f5a..4aa4d10b0 100644 --- a/module/zfs/zil.c +++ b/module/zfs/zil.c @@ -19,13 +19,13 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ +/* Portions Copyright 2010 Robert Milkowski */ + #include <sys/zfs_context.h> #include <sys/spa.h> -#include <sys/spa_impl.h> #include <sys/dmu.h> #include <sys/zap.h> #include <sys/arc.h> @@ -36,6 +36,7 @@ #include <sys/dsl_dataset.h> #include <sys/vdev.h> #include <sys/dmu_tx.h> +#include <sys/dsl_pool.h> /* * The zfs intent log (ZIL) saves transaction records of system calls @@ -66,7 +67,7 @@ /* * This global ZIL switch affects all pools */ -int zil_disable = 0; /* disable intent logging */ +int zil_replay_disable = 0; /* disable intent logging replay */ /* * Tunable parameter for debugging or performance analysis. Setting @@ -77,11 +78,17 @@ boolean_t zfs_nocacheflush = B_FALSE; static kmem_cache_t *zil_lwb_cache; +static boolean_t zil_empty(zilog_t *zilog); + +#define LWB_EMPTY(lwb) ((BP_GET_LSIZE(&lwb->lwb_blk) - \ + sizeof (zil_chain_t)) == (lwb->lwb_sz - lwb->lwb_nused)) + + static int -zil_dva_compare(const void *x1, const void *x2) +zil_bp_compare(const void *x1, const void *x2) { - const dva_t *dva1 = x1; - const dva_t *dva2 = x2; + const dva_t *dva1 = &((zil_bp_node_t *)x1)->zn_dva; + const dva_t *dva2 = &((zil_bp_node_t *)x2)->zn_dva; if (DVA_GET_VDEV(dva1) < DVA_GET_VDEV(dva2)) return (-1); @@ -97,34 +104,37 @@ zil_dva_compare(const void *x1, const void *x2) } static void -zil_dva_tree_init(avl_tree_t *t) +zil_bp_tree_init(zilog_t *zilog) { - avl_create(t, zil_dva_compare, sizeof (zil_dva_node_t), - offsetof(zil_dva_node_t, zn_node)); + avl_create(&zilog->zl_bp_tree, zil_bp_compare, + sizeof (zil_bp_node_t), offsetof(zil_bp_node_t, zn_node)); } static void -zil_dva_tree_fini(avl_tree_t *t) +zil_bp_tree_fini(zilog_t *zilog) { - zil_dva_node_t *zn; + avl_tree_t *t = &zilog->zl_bp_tree; + zil_bp_node_t *zn; void *cookie = NULL; while ((zn = avl_destroy_nodes(t, &cookie)) != NULL) - kmem_free(zn, sizeof (zil_dva_node_t)); + kmem_free(zn, sizeof (zil_bp_node_t)); avl_destroy(t); } -static int -zil_dva_tree_add(avl_tree_t *t, dva_t *dva) +int +zil_bp_tree_add(zilog_t *zilog, const blkptr_t *bp) { - zil_dva_node_t *zn; + avl_tree_t *t = &zilog->zl_bp_tree; + const dva_t *dva = BP_IDENTITY(bp); + zil_bp_node_t *zn; avl_index_t where; if (avl_find(t, dva, &where) != NULL) return (EEXIST); - zn = kmem_alloc(sizeof (zil_dva_node_t), KM_SLEEP); + zn = kmem_alloc(sizeof (zil_bp_node_t), KM_SLEEP); zn->zn_dva = *dva; avl_insert(t, zn, where); @@ -149,35 +159,31 @@ zil_init_log_chain(zilog_t *zilog, blkptr_t *bp) } /* - * Read a log block, make sure it's valid, and byteswap it if necessary. + * Read a log block and make sure it's valid. */ static int -zil_read_log_block(zilog_t *zilog, const blkptr_t *bp, arc_buf_t **abufpp) +zil_read_log_block(zilog_t *zilog, const blkptr_t *bp, blkptr_t *nbp, void *dst, + char **end) { - blkptr_t blk = *bp; - zbookmark_t zb; + enum zio_flag zio_flags = ZIO_FLAG_CANFAIL; uint32_t aflags = ARC_WAIT; + arc_buf_t *abuf = NULL; + zbookmark_t zb; int error; - zb.zb_objset = bp->blk_cksum.zc_word[ZIL_ZC_OBJSET]; - zb.zb_object = 0; - zb.zb_level = -1; - zb.zb_blkid = bp->blk_cksum.zc_word[ZIL_ZC_SEQ]; + if (zilog->zl_header->zh_claim_txg == 0) + zio_flags |= ZIO_FLAG_SPECULATIVE | ZIO_FLAG_SCRUB; - *abufpp = NULL; + if (!(zilog->zl_header->zh_flags & ZIL_CLAIM_LR_SEQ_VALID)) + zio_flags |= ZIO_FLAG_SPECULATIVE; - /* - * We shouldn't be doing any scrubbing while we're doing log - * replay, it's OK to not lock. - */ - error = arc_read_nolock(NULL, zilog->zl_spa, &blk, - arc_getbuf_func, abufpp, ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL | - ZIO_FLAG_SPECULATIVE | ZIO_FLAG_SCRUB, &aflags, &zb); + SET_BOOKMARK(&zb, bp->blk_cksum.zc_word[ZIL_ZC_OBJSET], + ZB_ZIL_OBJECT, ZB_ZIL_LEVEL, bp->blk_cksum.zc_word[ZIL_ZC_SEQ]); + + error = dsl_read_nolock(NULL, zilog->zl_spa, bp, arc_getbuf_func, &abuf, + ZIO_PRIORITY_SYNC_READ, zio_flags, &aflags, &zb); if (error == 0) { - char *data = (*abufpp)->b_data; - uint64_t blksz = BP_GET_LSIZE(bp); - zil_trailer_t *ztp = (zil_trailer_t *)(data + blksz) - 1; zio_cksum_t cksum = bp->blk_cksum; /* @@ -190,43 +196,102 @@ zil_read_log_block(zilog_t *zilog, const blkptr_t *bp, arc_buf_t **abufpp) */ cksum.zc_word[ZIL_ZC_SEQ]++; - if (bcmp(&cksum, &ztp->zit_next_blk.blk_cksum, - sizeof (cksum)) || BP_IS_HOLE(&ztp->zit_next_blk) || - (ztp->zit_nused > (blksz - sizeof (zil_trailer_t)))) { - error = ECKSUM; - } + if (BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_ZILOG2) { + zil_chain_t *zilc = abuf->b_data; + char *lr = (char *)(zilc + 1); + uint64_t len = zilc->zc_nused - sizeof (zil_chain_t); - if (error) { - VERIFY(arc_buf_remove_ref(*abufpp, abufpp) == 1); - *abufpp = NULL; + if (bcmp(&cksum, &zilc->zc_next_blk.blk_cksum, + sizeof (cksum)) || BP_IS_HOLE(&zilc->zc_next_blk)) { + error = ECKSUM; + } else { + bcopy(lr, dst, len); + *end = (char *)dst + len; + *nbp = zilc->zc_next_blk; + } + } else { + char *lr = abuf->b_data; + uint64_t size = BP_GET_LSIZE(bp); + zil_chain_t *zilc = (zil_chain_t *)(lr + size) - 1; + + if (bcmp(&cksum, &zilc->zc_next_blk.blk_cksum, + sizeof (cksum)) || BP_IS_HOLE(&zilc->zc_next_blk) || + (zilc->zc_nused > (size - sizeof (*zilc)))) { + error = ECKSUM; + } else { + bcopy(lr, dst, zilc->zc_nused); + *end = (char *)dst + zilc->zc_nused; + *nbp = zilc->zc_next_blk; + } } + + VERIFY(arc_buf_remove_ref(abuf, &abuf) == 1); + } + + return (error); +} + +/* + * Read a TX_WRITE log data block. + */ +static int +zil_read_log_data(zilog_t *zilog, const lr_write_t *lr, void *wbuf) +{ + enum zio_flag zio_flags = ZIO_FLAG_CANFAIL; + const blkptr_t *bp = &lr->lr_blkptr; + uint32_t aflags = ARC_WAIT; + arc_buf_t *abuf = NULL; + zbookmark_t zb; + int error; + + if (BP_IS_HOLE(bp)) { + if (wbuf != NULL) + bzero(wbuf, MAX(BP_GET_LSIZE(bp), lr->lr_length)); + return (0); } - dprintf("error %d on %llu:%llu\n", error, zb.zb_objset, zb.zb_blkid); + if (zilog->zl_header->zh_claim_txg == 0) + zio_flags |= ZIO_FLAG_SPECULATIVE | ZIO_FLAG_SCRUB; + + SET_BOOKMARK(&zb, dmu_objset_id(zilog->zl_os), lr->lr_foid, + ZB_ZIL_LEVEL, lr->lr_offset / BP_GET_LSIZE(bp)); + + error = arc_read_nolock(NULL, zilog->zl_spa, bp, arc_getbuf_func, &abuf, + ZIO_PRIORITY_SYNC_READ, zio_flags, &aflags, &zb); + + if (error == 0) { + if (wbuf != NULL) + bcopy(abuf->b_data, wbuf, arc_buf_size(abuf)); + (void) arc_buf_remove_ref(abuf, &abuf); + } return (error); } /* * Parse the intent log, and call parse_func for each valid record within. - * Return the highest sequence number. */ -uint64_t +int zil_parse(zilog_t *zilog, zil_parse_blk_func_t *parse_blk_func, zil_parse_lr_func_t *parse_lr_func, void *arg, uint64_t txg) { const zil_header_t *zh = zilog->zl_header; - uint64_t claim_seq = zh->zh_claim_seq; - uint64_t seq = 0; - uint64_t max_seq = 0; - blkptr_t blk = zh->zh_log; - arc_buf_t *abuf; + boolean_t claimed = !!zh->zh_claim_txg; + uint64_t claim_blk_seq = claimed ? zh->zh_claim_blk_seq : UINT64_MAX; + uint64_t claim_lr_seq = claimed ? zh->zh_claim_lr_seq : UINT64_MAX; + uint64_t max_blk_seq = 0; + uint64_t max_lr_seq = 0; + uint64_t blk_count = 0; + uint64_t lr_count = 0; + blkptr_t blk, next_blk; char *lrbuf, *lrp; - zil_trailer_t *ztp; - int reclen, error; + int error = 0; - if (BP_IS_HOLE(&blk)) - return (max_seq); + /* + * Old logs didn't record the maximum zh_claim_lr_seq. + */ + if (!(zh->zh_flags & ZIL_CLAIM_LR_SEQ_VALID)) + claim_lr_seq = UINT64_MAX; /* * Starting at the block pointed to by zh_log we read the log chain. @@ -237,105 +302,156 @@ zil_parse(zilog_t *zilog, zil_parse_blk_func_t *parse_blk_func, * If the log has been claimed, stop if we encounter a sequence * number greater than the highest claimed sequence number. */ - zil_dva_tree_init(&zilog->zl_dva_tree); - for (;;) { - seq = blk.blk_cksum.zc_word[ZIL_ZC_SEQ]; + lrbuf = zio_buf_alloc(SPA_MAXBLOCKSIZE); + zil_bp_tree_init(zilog); - if (claim_seq != 0 && seq > claim_seq) - break; - - ASSERT(max_seq < seq); - max_seq = seq; + for (blk = zh->zh_log; !BP_IS_HOLE(&blk); blk = next_blk) { + uint64_t blk_seq = blk.blk_cksum.zc_word[ZIL_ZC_SEQ]; + int reclen; + char *end; - error = zil_read_log_block(zilog, &blk, &abuf); + if (blk_seq > claim_blk_seq) + break; + if ((error = parse_blk_func(zilog, &blk, arg, txg)) != 0) + break; + ASSERT3U(max_blk_seq, <, blk_seq); + max_blk_seq = blk_seq; + blk_count++; - if (parse_blk_func != NULL) - parse_blk_func(zilog, &blk, arg, txg); + if (max_lr_seq == claim_lr_seq && max_blk_seq == claim_blk_seq) + break; + error = zil_read_log_block(zilog, &blk, &next_blk, lrbuf, &end); if (error) break; - lrbuf = abuf->b_data; - ztp = (zil_trailer_t *)(lrbuf + BP_GET_LSIZE(&blk)) - 1; - blk = ztp->zit_next_blk; - - if (parse_lr_func == NULL) { - VERIFY(arc_buf_remove_ref(abuf, &abuf) == 1); - continue; - } - - for (lrp = lrbuf; lrp < lrbuf + ztp->zit_nused; lrp += reclen) { + for (lrp = lrbuf; lrp < end; lrp += reclen) { lr_t *lr = (lr_t *)lrp; reclen = lr->lrc_reclen; ASSERT3U(reclen, >=, sizeof (lr_t)); - parse_lr_func(zilog, lr, arg, txg); + if (lr->lrc_seq > claim_lr_seq) + goto done; + if ((error = parse_lr_func(zilog, lr, arg, txg)) != 0) + goto done; + ASSERT3U(max_lr_seq, <, lr->lrc_seq); + max_lr_seq = lr->lrc_seq; + lr_count++; } - VERIFY(arc_buf_remove_ref(abuf, &abuf) == 1); } - zil_dva_tree_fini(&zilog->zl_dva_tree); +done: + zilog->zl_parse_error = error; + zilog->zl_parse_blk_seq = max_blk_seq; + zilog->zl_parse_lr_seq = max_lr_seq; + zilog->zl_parse_blk_count = blk_count; + zilog->zl_parse_lr_count = lr_count; + + ASSERT(!claimed || !(zh->zh_flags & ZIL_CLAIM_LR_SEQ_VALID) || + (max_blk_seq == claim_blk_seq && max_lr_seq == claim_lr_seq)); + + zil_bp_tree_fini(zilog); + zio_buf_free(lrbuf, SPA_MAXBLOCKSIZE); - return (max_seq); + return (error); } -/* ARGSUSED */ -static void +static int zil_claim_log_block(zilog_t *zilog, blkptr_t *bp, void *tx, uint64_t first_txg) { - spa_t *spa = zilog->zl_spa; - int err; - /* * Claim log block if not already committed and not already claimed. + * If tx == NULL, just verify that the block is claimable. */ - if (bp->blk_birth >= first_txg && - zil_dva_tree_add(&zilog->zl_dva_tree, BP_IDENTITY(bp)) == 0) { - err = zio_wait(zio_claim(NULL, spa, first_txg, bp, NULL, NULL, - ZIO_FLAG_MUSTSUCCEED)); - ASSERT(err == 0); - } + if (bp->blk_birth < first_txg || zil_bp_tree_add(zilog, bp) != 0) + return (0); + + return (zio_wait(zio_claim(NULL, zilog->zl_spa, + tx == NULL ? 0 : first_txg, bp, spa_claim_notify, NULL, + ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | ZIO_FLAG_SCRUB))); } -static void +static int zil_claim_log_record(zilog_t *zilog, lr_t *lrc, void *tx, uint64_t first_txg) { - if (lrc->lrc_txtype == TX_WRITE) { - lr_write_t *lr = (lr_write_t *)lrc; - zil_claim_log_block(zilog, &lr->lr_blkptr, tx, first_txg); - } + lr_write_t *lr = (lr_write_t *)lrc; + int error; + + if (lrc->lrc_txtype != TX_WRITE) + return (0); + + /* + * If the block is not readable, don't claim it. This can happen + * in normal operation when a log block is written to disk before + * some of the dmu_sync() blocks it points to. In this case, the + * transaction cannot have been committed to anyone (we would have + * waited for all writes to be stable first), so it is semantically + * correct to declare this the end of the log. + */ + if (lr->lr_blkptr.blk_birth >= first_txg && + (error = zil_read_log_data(zilog, lr, NULL)) != 0) + return (error); + return (zil_claim_log_block(zilog, &lr->lr_blkptr, tx, first_txg)); } /* ARGSUSED */ -static void +static int zil_free_log_block(zilog_t *zilog, blkptr_t *bp, void *tx, uint64_t claim_txg) { - zio_free_blk(zilog->zl_spa, bp, dmu_tx_get_txg(tx)); + zio_free_zil(zilog->zl_spa, dmu_tx_get_txg(tx), bp); + + return (0); } -static void +static int zil_free_log_record(zilog_t *zilog, lr_t *lrc, void *tx, uint64_t claim_txg) { + lr_write_t *lr = (lr_write_t *)lrc; + blkptr_t *bp = &lr->lr_blkptr; + /* * If we previously claimed it, we need to free it. */ - if (claim_txg != 0 && lrc->lrc_txtype == TX_WRITE) { - lr_write_t *lr = (lr_write_t *)lrc; - blkptr_t *bp = &lr->lr_blkptr; - if (bp->blk_birth >= claim_txg && - !zil_dva_tree_add(&zilog->zl_dva_tree, BP_IDENTITY(bp))) { - (void) arc_free(NULL, zilog->zl_spa, - dmu_tx_get_txg(tx), bp, NULL, NULL, ARC_WAIT); - } + if (claim_txg != 0 && lrc->lrc_txtype == TX_WRITE && + bp->blk_birth >= claim_txg && zil_bp_tree_add(zilog, bp) == 0) + zio_free(zilog->zl_spa, dmu_tx_get_txg(tx), bp); + + return (0); +} + +static lwb_t * +zil_alloc_lwb(zilog_t *zilog, blkptr_t *bp, uint64_t txg) +{ + lwb_t *lwb; + + lwb = kmem_cache_alloc(zil_lwb_cache, KM_SLEEP); + lwb->lwb_zilog = zilog; + lwb->lwb_blk = *bp; + lwb->lwb_buf = zio_buf_alloc(BP_GET_LSIZE(bp)); + lwb->lwb_max_txg = txg; + lwb->lwb_zio = NULL; + lwb->lwb_tx = NULL; + if (BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_ZILOG2) { + lwb->lwb_nused = sizeof (zil_chain_t); + lwb->lwb_sz = BP_GET_LSIZE(bp); + } else { + lwb->lwb_nused = 0; + lwb->lwb_sz = BP_GET_LSIZE(bp) - sizeof (zil_chain_t); } + + mutex_enter(&zilog->zl_lock); + list_insert_tail(&zilog->zl_lwb_list, lwb); + mutex_exit(&zilog->zl_lock); + + return (lwb); } /* * Create an on-disk intent log. */ -static void +static lwb_t * zil_create(zilog_t *zilog) { const zil_header_t *zh = zilog->zl_header; - lwb_t *lwb; + lwb_t *lwb = NULL; uint64_t txg = 0; dmu_tx_t *tx = NULL; blkptr_t blk; @@ -352,22 +468,23 @@ zil_create(zilog_t *zilog) blk = zh->zh_log; /* - * If we don't already have an initial log block or we have one - * but it's the wrong endianness then allocate one. + * Allocate an initial log block if: + * - there isn't one already + * - the existing block is the wrong endianess */ if (BP_IS_HOLE(&blk) || BP_SHOULD_BYTESWAP(&blk)) { tx = dmu_tx_create(zilog->zl_os); - (void) dmu_tx_assign(tx, TXG_WAIT); + VERIFY(dmu_tx_assign(tx, TXG_WAIT) == 0); dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); txg = dmu_tx_get_txg(tx); if (!BP_IS_HOLE(&blk)) { - zio_free_blk(zilog->zl_spa, &blk, txg); + zio_free_zil(zilog->zl_spa, txg, &blk); BP_ZERO(&blk); } - error = zio_alloc_blk(zilog->zl_spa, ZIL_MIN_BLKSZ, &blk, - NULL, txg); + error = zio_alloc_zil(zilog->zl_spa, txg, &blk, NULL, + ZIL_MIN_BLKSZ, zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); if (error == 0) zil_init_log_chain(zilog, &blk); @@ -376,20 +493,8 @@ zil_create(zilog_t *zilog) /* * Allocate a log write buffer (lwb) for the first log block. */ - if (error == 0) { - lwb = kmem_cache_alloc(zil_lwb_cache, KM_SLEEP); - lwb->lwb_zilog = zilog; - lwb->lwb_blk = blk; - lwb->lwb_nused = 0; - lwb->lwb_sz = BP_GET_LSIZE(&lwb->lwb_blk); - lwb->lwb_buf = zio_buf_alloc(lwb->lwb_sz); - lwb->lwb_max_txg = txg; - lwb->lwb_zio = NULL; - - mutex_enter(&zilog->zl_lock); - list_insert_tail(&zilog->zl_lwb_list, lwb); - mutex_exit(&zilog->zl_lock); - } + if (error == 0) + lwb = zil_alloc_lwb(zilog, &blk, txg); /* * If we just allocated the first log block, commit our transaction @@ -402,6 +507,8 @@ zil_create(zilog_t *zilog) } ASSERT(bcmp(&blk, &zh->zh_log, sizeof (blk)) == 0); + + return (lwb); } /* @@ -426,26 +533,18 @@ zil_destroy(zilog_t *zilog, boolean_t keep_first) */ txg_wait_synced(zilog->zl_dmu_pool, zilog->zl_destroy_txg); + zilog->zl_old_header = *zh; /* debugging aid */ + if (BP_IS_HOLE(&zh->zh_log)) return; tx = dmu_tx_create(zilog->zl_os); - (void) dmu_tx_assign(tx, TXG_WAIT); + VERIFY(dmu_tx_assign(tx, TXG_WAIT) == 0); dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); txg = dmu_tx_get_txg(tx); mutex_enter(&zilog->zl_lock); - /* - * It is possible for the ZIL to get the previously mounted zilog - * structure of the same dataset if quickly remounted and the dbuf - * eviction has not completed. In this case we can see a non - * empty lwb list and keep_first will be set. We fix this by - * clearing the keep_first. This will be slower but it's very rare. - */ - if (!list_is_empty(&zilog->zl_lwb_list) && keep_first) - keep_first = B_FALSE; - ASSERT3U(zilog->zl_destroy_txg, <, txg); zilog->zl_destroy_txg = txg; zilog->zl_keep_first = keep_first; @@ -457,41 +556,20 @@ zil_destroy(zilog_t *zilog, boolean_t keep_first) list_remove(&zilog->zl_lwb_list, lwb); if (lwb->lwb_buf != NULL) zio_buf_free(lwb->lwb_buf, lwb->lwb_sz); - zio_free_blk(zilog->zl_spa, &lwb->lwb_blk, txg); + zio_free_zil(zilog->zl_spa, txg, &lwb->lwb_blk); kmem_cache_free(zil_lwb_cache, lwb); } - } else { - if (!keep_first) { - (void) zil_parse(zilog, zil_free_log_block, - zil_free_log_record, tx, zh->zh_claim_txg); - } + } else if (!keep_first) { + (void) zil_parse(zilog, zil_free_log_block, + zil_free_log_record, tx, zh->zh_claim_txg); } mutex_exit(&zilog->zl_lock); dmu_tx_commit(tx); } -/* - * return true if the initial log block is not valid - */ -static boolean_t -zil_empty(zilog_t *zilog) -{ - const zil_header_t *zh = zilog->zl_header; - arc_buf_t *abuf = NULL; - - if (BP_IS_HOLE(&zh->zh_log)) - return (B_TRUE); - - if (zil_read_log_block(zilog, &zh->zh_log, &abuf) != 0) - return (B_TRUE); - - VERIFY(arc_buf_remove_ref(abuf, &abuf) == 1); - return (B_FALSE); -} - int -zil_claim(char *osname, void *txarg) +zil_claim(const char *osname, void *txarg) { dmu_tx_t *tx = txarg; uint64_t first_txg = dmu_tx_get_txg(tx); @@ -500,7 +578,7 @@ zil_claim(char *osname, void *txarg) objset_t *os; int error; - error = dmu_objset_open(osname, DMU_OST_ANY, DS_MODE_USER, &os); + error = dmu_objset_hold(osname, FTAG, &os); if (error) { cmn_err(CE_WARN, "can't open objset for %s", osname); return (0); @@ -509,28 +587,13 @@ zil_claim(char *osname, void *txarg) zilog = dmu_objset_zil(os); zh = zil_header_in_syncing_context(zilog); - if (zilog->zl_spa->spa_log_state == SPA_LOG_CLEAR) { + if (spa_get_log_state(zilog->zl_spa) == SPA_LOG_CLEAR) { if (!BP_IS_HOLE(&zh->zh_log)) - zio_free_blk(zilog->zl_spa, &zh->zh_log, first_txg); + zio_free_zil(zilog->zl_spa, first_txg, &zh->zh_log); BP_ZERO(&zh->zh_log); dsl_dataset_dirty(dmu_objset_ds(os), tx); - } - - /* - * Record here whether the zil has any records to replay. - * If the header block pointer is null or the block points - * to the stubby then we know there are no valid log records. - * We use the header to store this state as the the zilog gets - * freed later in dmu_objset_close(). - * The flags (and the rest of the header fields) are cleared in - * zil_sync() as a result of a zil_destroy(), after replaying the log. - * - * Note, the intent log can be empty but still need the - * stubby to be claimed. - */ - if (!zil_empty(zilog)) { - zh->zh_flags |= ZIL_REPLAY_NEEDED; - dsl_dataset_dirty(dmu_objset_ds(os), tx); + dmu_objset_rele(os, FTAG); + return (0); } /* @@ -542,14 +605,19 @@ zil_claim(char *osname, void *txarg) */ ASSERT3U(zh->zh_claim_txg, <=, first_txg); if (zh->zh_claim_txg == 0 && !BP_IS_HOLE(&zh->zh_log)) { - zh->zh_claim_txg = first_txg; - zh->zh_claim_seq = zil_parse(zilog, zil_claim_log_block, + (void) zil_parse(zilog, zil_claim_log_block, zil_claim_log_record, tx, first_txg); + zh->zh_claim_txg = first_txg; + zh->zh_claim_blk_seq = zilog->zl_parse_blk_seq; + zh->zh_claim_lr_seq = zilog->zl_parse_lr_seq; + if (zilog->zl_parse_lr_count || zilog->zl_parse_blk_count > 1) + zh->zh_flags |= ZIL_REPLAY_NEEDED; + zh->zh_flags |= ZIL_CLAIM_LR_SEQ_VALID; dsl_dataset_dirty(dmu_objset_ds(os), tx); } ASSERT3U(first_txg, ==, (spa_last_synced_txg(zilog->zl_spa) + 1)); - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); return (0); } @@ -558,46 +626,36 @@ zil_claim(char *osname, void *txarg) * Checksum errors are ok as they indicate the end of the chain. * Any other error (no device or read failure) returns an error. */ -/* ARGSUSED */ int -zil_check_log_chain(char *osname, void *txarg) +zil_check_log_chain(const char *osname, void *tx) { zilog_t *zilog; - zil_header_t *zh; - blkptr_t blk; - arc_buf_t *abuf; objset_t *os; - char *lrbuf; - zil_trailer_t *ztp; int error; - error = dmu_objset_open(osname, DMU_OST_ANY, DS_MODE_USER, &os); + ASSERT(tx == NULL); + + error = dmu_objset_hold(osname, FTAG, &os); if (error) { cmn_err(CE_WARN, "can't open objset for %s", osname); return (0); } zilog = dmu_objset_zil(os); - zh = zil_header_in_syncing_context(zilog); - blk = zh->zh_log; - if (BP_IS_HOLE(&blk)) { - dmu_objset_close(os); - return (0); /* no chain */ - } - for (;;) { - error = zil_read_log_block(zilog, &blk, &abuf); - if (error) - break; - lrbuf = abuf->b_data; - ztp = (zil_trailer_t *)(lrbuf + BP_GET_LSIZE(&blk)) - 1; - blk = ztp->zit_next_blk; - VERIFY(arc_buf_remove_ref(abuf, &abuf) == 1); - } - dmu_objset_close(os); - if (error == ECKSUM) - return (0); /* normal end of chain */ - return (error); + /* + * Because tx == NULL, zil_claim_log_block() will not actually claim + * any blocks, but just determine whether it is possible to do so. + * In addition to checking the log chain, zil_claim_log_block() + * will invoke zio_claim() with a done func of spa_claim_notify(), + * which will update spa_max_claim_txg. See spa_load() for details. + */ + error = zil_parse(zilog, zil_claim_log_block, zil_claim_log_record, tx, + zilog->zl_header->zh_claim_txg ? -1ULL : spa_first_txg(os->os_spa)); + + dmu_objset_rele(os, FTAG); + + return ((error == ECKSUM || error == ENOENT) ? 0 : error); } static int @@ -615,7 +673,7 @@ zil_vdev_compare(const void *x1, const void *x2) } void -zil_add_block(zilog_t *zilog, blkptr_t *bp) +zil_add_block(zilog_t *zilog, const blkptr_t *bp) { avl_tree_t *t = &zilog->zl_vdev_tree; avl_index_t where; @@ -691,9 +749,9 @@ zil_lwb_write_done(zio_t *zio) { lwb_t *lwb = zio->io_private; zilog_t *zilog = lwb->lwb_zilog; + dmu_tx_t *tx = lwb->lwb_tx; ASSERT(BP_GET_COMPRESS(zio->io_bp) == ZIO_COMPRESS_OFF); - ASSERT(BP_GET_CHECKSUM(zio->io_bp) == ZIO_CHECKSUM_ZILOG); ASSERT(BP_GET_TYPE(zio->io_bp) == DMU_OT_INTENT_LOG); ASSERT(BP_GET_LEVEL(zio->io_bp) == 0); ASSERT(BP_GET_BYTEORDER(zio->io_bp) == ZFS_HOST_BYTEORDER); @@ -712,17 +770,15 @@ zil_lwb_write_done(zio_t *zio) zio_buf_free(lwb->lwb_buf, lwb->lwb_sz); mutex_enter(&zilog->zl_lock); lwb->lwb_buf = NULL; - if (zio->io_error) - zilog->zl_log_error = B_TRUE; + lwb->lwb_tx = NULL; + mutex_exit(&zilog->zl_lock); /* * Now that we've written this log block, we have a stable pointer * to the next block in the chain, so it's OK to let the txg in - * which we allocated the next block sync. We still have the - * zl_lock to ensure zil_sync doesn't kmem free the lwb. + * which we allocated the next block sync. */ - txg_rele_to_sync(&lwb->lwb_txgh); - mutex_exit(&zilog->zl_lock); + dmu_tx_commit(tx); } /* @@ -733,10 +789,9 @@ zil_lwb_write_init(zilog_t *zilog, lwb_t *lwb) { zbookmark_t zb; - zb.zb_objset = lwb->lwb_blk.blk_cksum.zc_word[ZIL_ZC_OBJSET]; - zb.zb_object = 0; - zb.zb_level = -1; - zb.zb_blkid = lwb->lwb_blk.blk_cksum.zc_word[ZIL_ZC_SEQ]; + SET_BOOKMARK(&zb, lwb->lwb_blk.blk_cksum.zc_word[ZIL_ZC_OBJSET], + ZB_ZIL_OBJECT, ZB_ZIL_LEVEL, + lwb->lwb_blk.blk_cksum.zc_word[ZIL_ZC_SEQ]); if (zilog->zl_root_zio == NULL) { zilog->zl_root_zio = zio_root(zilog->zl_spa, NULL, NULL, @@ -744,118 +799,147 @@ zil_lwb_write_init(zilog_t *zilog, lwb_t *lwb) } if (lwb->lwb_zio == NULL) { lwb->lwb_zio = zio_rewrite(zilog->zl_root_zio, zilog->zl_spa, - 0, &lwb->lwb_blk, lwb->lwb_buf, lwb->lwb_sz, + 0, &lwb->lwb_blk, lwb->lwb_buf, BP_GET_LSIZE(&lwb->lwb_blk), zil_lwb_write_done, lwb, ZIO_PRIORITY_LOG_WRITE, - ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE, &zb); + ZIO_FLAG_CANFAIL | ZIO_FLAG_DONT_PROPAGATE, &zb); } } /* + * Define a limited set of intent log block sizes. + * These must be a multiple of 4KB. Note only the amount used (again + * aligned to 4KB) actually gets written. However, we can't always just + * allocate SPA_MAXBLOCKSIZE as the slog space could be exhausted. + */ +uint64_t zil_block_buckets[] = { + 4096, /* non TX_WRITE */ + 8192+4096, /* data base */ + 32*1024 + 4096, /* NFS writes */ + UINT64_MAX +}; + +/* + * Use the slog as long as the logbias is 'latency' and the current commit size + * is less than the limit or the total list size is less than 2X the limit. + * Limit checking is disabled by setting zil_slog_limit to UINT64_MAX. + */ +uint64_t zil_slog_limit = 1024 * 1024; +#define USE_SLOG(zilog) (((zilog)->zl_logbias == ZFS_LOGBIAS_LATENCY) && \ + (((zilog)->zl_cur_used < zil_slog_limit) || \ + ((zilog)->zl_itx_list_sz < (zil_slog_limit << 1)))) + +/* * Start a log block write and advance to the next log block. * Calls are serialized. */ static lwb_t * zil_lwb_write_start(zilog_t *zilog, lwb_t *lwb) { - lwb_t *nlwb; - zil_trailer_t *ztp = (zil_trailer_t *)(lwb->lwb_buf + lwb->lwb_sz) - 1; + lwb_t *nlwb = NULL; + zil_chain_t *zilc; spa_t *spa = zilog->zl_spa; - blkptr_t *bp = &ztp->zit_next_blk; + blkptr_t *bp; + dmu_tx_t *tx; uint64_t txg; - uint64_t zil_blksz; - int error; + uint64_t zil_blksz, wsz; + int i, error; + + if (BP_GET_CHECKSUM(&lwb->lwb_blk) == ZIO_CHECKSUM_ZILOG2) { + zilc = (zil_chain_t *)lwb->lwb_buf; + bp = &zilc->zc_next_blk; + } else { + zilc = (zil_chain_t *)(lwb->lwb_buf + lwb->lwb_sz); + bp = &zilc->zc_next_blk; + } - ASSERT(lwb->lwb_nused <= ZIL_BLK_DATA_SZ(lwb)); + ASSERT(lwb->lwb_nused <= lwb->lwb_sz); /* * Allocate the next block and save its address in this block * before writing it in order to establish the log chain. * Note that if the allocation of nlwb synced before we wrote * the block that points at it (lwb), we'd leak it if we crashed. - * Therefore, we don't do txg_rele_to_sync() until zil_lwb_write_done(). + * Therefore, we don't do dmu_tx_commit() until zil_lwb_write_done(). + * We dirty the dataset to ensure that zil_sync() will be called + * to clean up in the event of allocation failure or I/O failure. */ - txg = txg_hold_open(zilog->zl_dmu_pool, &lwb->lwb_txgh); - txg_rele_to_quiesce(&lwb->lwb_txgh); + tx = dmu_tx_create(zilog->zl_os); + VERIFY(dmu_tx_assign(tx, TXG_WAIT) == 0); + dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); + txg = dmu_tx_get_txg(tx); + + lwb->lwb_tx = tx; /* - * Pick a ZIL blocksize. We request a size that is the - * maximum of the previous used size, the current used size and - * the amount waiting in the queue. + * Log blocks are pre-allocated. Here we select the size of the next + * block, based on size used in the last block. + * - first find the smallest bucket that will fit the block from a + * limited set of block sizes. This is because it's faster to write + * blocks allocated from the same metaslab as they are adjacent or + * close. + * - next find the maximum from the new suggested size and an array of + * previous sizes. This lessens a picket fence effect of wrongly + * guesssing the size if we have a stream of say 2k, 64k, 2k, 64k + * requests. + * + * Note we only write what is used, but we can't just allocate + * the maximum block size because we can exhaust the available + * pool log space. */ - zil_blksz = MAX(zilog->zl_prev_used, - zilog->zl_cur_used + sizeof (*ztp)); - zil_blksz = MAX(zil_blksz, zilog->zl_itx_list_sz + sizeof (*ztp)); - zil_blksz = P2ROUNDUP_TYPED(zil_blksz, ZIL_MIN_BLKSZ, uint64_t); - if (zil_blksz > ZIL_MAX_BLKSZ) - zil_blksz = ZIL_MAX_BLKSZ; + zil_blksz = zilog->zl_cur_used + sizeof (zil_chain_t); + for (i = 0; zil_blksz > zil_block_buckets[i]; i++) + continue; + zil_blksz = zil_block_buckets[i]; + if (zil_blksz == UINT64_MAX) + zil_blksz = SPA_MAXBLOCKSIZE; + zilog->zl_prev_blks[zilog->zl_prev_rotor] = zil_blksz; + for (i = 0; i < ZIL_PREV_BLKS; i++) + zil_blksz = MAX(zil_blksz, zilog->zl_prev_blks[i]); + zilog->zl_prev_rotor = (zilog->zl_prev_rotor + 1) & (ZIL_PREV_BLKS - 1); BP_ZERO(bp); /* pass the old blkptr in order to spread log blocks across devs */ - error = zio_alloc_blk(spa, zil_blksz, bp, &lwb->lwb_blk, txg); - if (error) { - dmu_tx_t *tx = dmu_tx_create_assigned(zilog->zl_dmu_pool, txg); + error = zio_alloc_zil(spa, txg, bp, &lwb->lwb_blk, zil_blksz, + USE_SLOG(zilog)); + if (!error) { + ASSERT3U(bp->blk_birth, ==, txg); + bp->blk_cksum = lwb->lwb_blk.blk_cksum; + bp->blk_cksum.zc_word[ZIL_ZC_SEQ]++; /* - * We dirty the dataset to ensure that zil_sync() will - * be called to remove this lwb from our zl_lwb_list. - * Failing to do so, may leave an lwb with a NULL lwb_buf - * hanging around on the zl_lwb_list. + * Allocate a new log write buffer (lwb). */ - dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); - dmu_tx_commit(tx); - - /* - * Since we've just experienced an allocation failure so we - * terminate the current lwb and send it on its way. - */ - ztp->zit_pad = 0; - ztp->zit_nused = lwb->lwb_nused; - ztp->zit_bt.zbt_cksum = lwb->lwb_blk.blk_cksum; - zio_nowait(lwb->lwb_zio); + nlwb = zil_alloc_lwb(zilog, bp, txg); - /* - * By returning NULL the caller will call tx_wait_synced() - */ - return (NULL); + /* Record the block for later vdev flushing */ + zil_add_block(zilog, &lwb->lwb_blk); } - ASSERT3U(bp->blk_birth, ==, txg); - ztp->zit_pad = 0; - ztp->zit_nused = lwb->lwb_nused; - ztp->zit_bt.zbt_cksum = lwb->lwb_blk.blk_cksum; - bp->blk_cksum = lwb->lwb_blk.blk_cksum; - bp->blk_cksum.zc_word[ZIL_ZC_SEQ]++; + if (BP_GET_CHECKSUM(&lwb->lwb_blk) == ZIO_CHECKSUM_ZILOG2) { + /* For Slim ZIL only write what is used. */ + wsz = P2ROUNDUP_TYPED(lwb->lwb_nused, ZIL_MIN_BLKSZ, uint64_t); + ASSERT3U(wsz, <=, lwb->lwb_sz); + zio_shrink(lwb->lwb_zio, wsz); - /* - * Allocate a new log write buffer (lwb). - */ - nlwb = kmem_cache_alloc(zil_lwb_cache, KM_SLEEP); + } else { + wsz = lwb->lwb_sz; + } - nlwb->lwb_zilog = zilog; - nlwb->lwb_blk = *bp; - nlwb->lwb_nused = 0; - nlwb->lwb_sz = BP_GET_LSIZE(&nlwb->lwb_blk); - nlwb->lwb_buf = zio_buf_alloc(nlwb->lwb_sz); - nlwb->lwb_max_txg = txg; - nlwb->lwb_zio = NULL; + zilc->zc_pad = 0; + zilc->zc_nused = lwb->lwb_nused; + zilc->zc_eck.zec_cksum = lwb->lwb_blk.blk_cksum; /* - * Put new lwb at the end of the log chain + * clear unused data for security */ - mutex_enter(&zilog->zl_lock); - list_insert_tail(&zilog->zl_lwb_list, nlwb); - mutex_exit(&zilog->zl_lock); + bzero(lwb->lwb_buf + lwb->lwb_nused, wsz - lwb->lwb_nused); - /* Record the block for later vdev flushing */ - zil_add_block(zilog, &lwb->lwb_blk); + zio_nowait(lwb->lwb_zio); /* Kick off the write for the old log block */ /* - * kick off the write for the old log block + * If there was an allocation failure then nlwb will be null which + * forces a txg_wait_synced(). */ - dprintf_bp(&lwb->lwb_blk, "lwb %p txg %llu: ", lwb, txg); - ASSERT(lwb->lwb_zio); - zio_nowait(lwb->lwb_zio); - return (nlwb); } @@ -863,20 +947,20 @@ static lwb_t * zil_lwb_commit(zilog_t *zilog, itx_t *itx, lwb_t *lwb) { lr_t *lrc = &itx->itx_lr; /* common log record */ - lr_write_t *lr = (lr_write_t *)lrc; + lr_write_t *lrw = (lr_write_t *)lrc; + char *lr_buf; uint64_t txg = lrc->lrc_txg; uint64_t reclen = lrc->lrc_reclen; - uint64_t dlen; + uint64_t dlen = 0; if (lwb == NULL) return (NULL); + ASSERT(lwb->lwb_buf != NULL); if (lrc->lrc_txtype == TX_WRITE && itx->itx_wr_state == WR_NEED_COPY) dlen = P2ROUNDUP_TYPED( - lr->lr_length, sizeof (uint64_t), uint64_t); - else - dlen = 0; + lrw->lr_length, sizeof (uint64_t), uint64_t); zilog->zl_cur_used += (reclen + dlen); @@ -885,24 +969,22 @@ zil_lwb_commit(zilog_t *zilog, itx_t *itx, lwb_t *lwb) /* * If this record won't fit in the current log block, start a new one. */ - if (lwb->lwb_nused + reclen + dlen > ZIL_BLK_DATA_SZ(lwb)) { + if (lwb->lwb_nused + reclen + dlen > lwb->lwb_sz) { lwb = zil_lwb_write_start(zilog, lwb); if (lwb == NULL) return (NULL); zil_lwb_write_init(zilog, lwb); - ASSERT(lwb->lwb_nused == 0); - if (reclen + dlen > ZIL_BLK_DATA_SZ(lwb)) { + ASSERT(LWB_EMPTY(lwb)); + if (lwb->lwb_nused + reclen + dlen > lwb->lwb_sz) { txg_wait_synced(zilog->zl_dmu_pool, txg); return (lwb); } } - /* - * Update the lrc_seq, to be log record sequence number. See zil.h - * Then copy the record to the log buffer. - */ - lrc->lrc_seq = ++zilog->zl_lr_seq; /* we are single threaded */ - bcopy(lrc, lwb->lwb_buf + lwb->lwb_nused, reclen); + lr_buf = lwb->lwb_buf + lwb->lwb_nused; + bcopy(lrc, lr_buf, reclen); + lrc = (lr_t *)lr_buf; + lrw = (lr_write_t *)lrc; /* * If it's a write, fetch the data or get its blkptr as appropriate. @@ -914,18 +996,16 @@ zil_lwb_commit(zilog_t *zilog, itx_t *itx, lwb_t *lwb) char *dbuf; int error; - /* alignment is guaranteed */ - lr = (lr_write_t *)(lwb->lwb_buf + lwb->lwb_nused); if (dlen) { ASSERT(itx->itx_wr_state == WR_NEED_COPY); - dbuf = lwb->lwb_buf + lwb->lwb_nused + reclen; - lr->lr_common.lrc_reclen += dlen; + dbuf = lr_buf + reclen; + lrw->lr_common.lrc_reclen += dlen; } else { ASSERT(itx->itx_wr_state == WR_INDIRECT); dbuf = NULL; } error = zilog->zl_get_data( - itx->itx_private, lr, dbuf, lwb->lwb_zio); + itx->itx_private, lrw, dbuf, lwb->lwb_zio); if (error == EIO) { txg_wait_synced(zilog->zl_dmu_pool, txg); return (lwb); @@ -938,9 +1018,16 @@ zil_lwb_commit(zilog_t *zilog, itx_t *itx, lwb_t *lwb) } } + /* + * We're actually making an entry, so update lrc_seq to be the + * log record sequence number. Note that this is generally not + * equal to the itx sequence number because not all transactions + * are synchronous, and sometimes spa_sync() gets there first. + */ + lrc->lrc_seq = ++zilog->zl_lr_seq; /* we are single threaded */ lwb->lwb_nused += reclen + dlen; lwb->lwb_max_txg = MAX(lwb->lwb_max_txg, txg); - ASSERT3U(lwb->lwb_nused, <=, ZIL_BLK_DATA_SZ(lwb)); + ASSERT3U(lwb->lwb_nused, <=, lwb->lwb_sz); ASSERT3U(P2PHASE(lwb->lwb_nused, sizeof (uint64_t)), ==, 0); return (lwb); @@ -962,12 +1049,19 @@ zil_itx_create(uint64_t txtype, size_t lrsize) return (itx); } +void +zil_itx_destroy(itx_t *itx) +{ + kmem_free(itx, offsetof(itx_t, itx_lr) + itx->itx_lr.lrc_reclen); +} + uint64_t zil_itx_assign(zilog_t *zilog, itx_t *itx, dmu_tx_t *tx) { uint64_t seq; ASSERT(itx->itx_lr.lrc_seq == 0); + ASSERT(!zilog->zl_replay); mutex_enter(&zilog->zl_lock); list_insert_tail(&zilog->zl_itx_list, itx); @@ -1016,8 +1110,7 @@ zil_itx_clean(zilog_t *zilog) /* destroy sync'd log transactions */ while ((itx = list_head(&clean_list)) != NULL) { list_remove(&clean_list, itx); - kmem_free(itx, offsetof(itx_t, itx_lr) - + itx->itx_lr.lrc_reclen); + zil_itx_destroy(itx); } list_destroy(&clean_list); } @@ -1036,7 +1129,7 @@ zil_clean(zilog_t *zilog) if ((itx != NULL) && (itx->itx_lr.lrc_txg <= spa_last_synced_txg(zilog->zl_spa))) { (void) taskq_dispatch(zilog->zl_clean_taskq, - (task_func_t *)zil_itx_clean, zilog, TQ_SLEEP); + (task_func_t *)zil_itx_clean, zilog, TQ_NOSLEEP); } mutex_exit(&zilog->zl_lock); } @@ -1046,9 +1139,10 @@ zil_commit_writer(zilog_t *zilog, uint64_t seq, uint64_t foid) { uint64_t txg; uint64_t commit_seq = 0; - itx_t *itx, *itx_next = (itx_t *)-1; + itx_t *itx, *itx_next; lwb_t *lwb; spa_t *spa; + int error = 0; zilog->zl_writer = B_TRUE; ASSERT(zilog->zl_root_zio == NULL); @@ -1068,77 +1162,64 @@ zil_commit_writer(zilog_t *zilog, uint64_t seq, uint64_t foid) return; } mutex_exit(&zilog->zl_lock); - zil_create(zilog); + lwb = zil_create(zilog); mutex_enter(&zilog->zl_lock); - lwb = list_tail(&zilog->zl_lwb_list); } } + ASSERT(lwb == NULL || lwb->lwb_zio == NULL); /* Loop through in-memory log transactions filling log blocks. */ DTRACE_PROBE1(zil__cw1, zilog_t *, zilog); - for (;;) { + + for (itx = list_head(&zilog->zl_itx_list); itx; itx = itx_next) { /* - * Find the next itx to push: - * Push all transactions related to specified foid and all - * other transactions except TX_WRITE, TX_TRUNCATE, - * TX_SETATTR and TX_ACL for all other files. + * Save the next pointer. Even though we drop zl_lock below, + * all threads that can remove itx list entries (other writers + * and zil_itx_clean()) can't do so until they have zl_writer. */ - if (itx_next != (itx_t *)-1) - itx = itx_next; - else - itx = list_head(&zilog->zl_itx_list); - for (; itx != NULL; itx = list_next(&zilog->zl_itx_list, itx)) { - if (foid == 0) /* push all foids? */ - break; - if (itx->itx_sync) /* push all O_[D]SYNC */ - break; - switch (itx->itx_lr.lrc_txtype) { - case TX_SETATTR: - case TX_WRITE: - case TX_TRUNCATE: - case TX_ACL: - /* lr_foid is same offset for these records */ - if (((lr_write_t *)&itx->itx_lr)->lr_foid - != foid) { - continue; /* skip this record */ - } - } - break; - } - if (itx == NULL) - break; + itx_next = list_next(&zilog->zl_itx_list, itx); + + /* + * Determine whether to push this itx. + * Push all transactions related to specified foid and + * all other transactions except those that can be logged + * out of order (TX_WRITE, TX_TRUNCATE, TX_SETATTR, TX_ACL) + * for all other files. + * + * If foid == 0 (meaning "push all foids") or + * itx->itx_sync is set (meaning O_[D]SYNC), push regardless. + */ + if (foid != 0 && !itx->itx_sync && + TX_OOO(itx->itx_lr.lrc_txtype) && + ((lr_ooo_t *)&itx->itx_lr)->lr_foid != foid) + continue; /* skip this record */ if ((itx->itx_lr.lrc_seq > seq) && - ((lwb == NULL) || (lwb->lwb_nused == 0) || - (lwb->lwb_nused + itx->itx_sod > ZIL_BLK_DATA_SZ(lwb)))) { + ((lwb == NULL) || (LWB_EMPTY(lwb)) || + (lwb->lwb_nused + itx->itx_sod > lwb->lwb_sz))) break; - } - /* - * Save the next pointer. Even though we soon drop - * zl_lock all threads that may change the list - * (another writer or zil_itx_clean) can't do so until - * they have zl_writer. - */ - itx_next = list_next(&zilog->zl_itx_list, itx); list_remove(&zilog->zl_itx_list, itx); zilog->zl_itx_list_sz -= itx->itx_sod; + mutex_exit(&zilog->zl_lock); + txg = itx->itx_lr.lrc_txg; ASSERT(txg); if (txg > spa_last_synced_txg(spa) || txg > spa_freeze_txg(spa)) lwb = zil_lwb_commit(zilog, itx, lwb); - kmem_free(itx, offsetof(itx_t, itx_lr) - + itx->itx_lr.lrc_reclen); + + zil_itx_destroy(itx); + mutex_enter(&zilog->zl_lock); } DTRACE_PROBE1(zil__cw2, zilog_t *, zilog); /* determine commit sequence number */ itx = list_head(&zilog->zl_itx_list); if (itx) - commit_seq = itx->itx_lr.lrc_seq; + commit_seq = itx->itx_lr.lrc_seq - 1; else commit_seq = zilog->zl_itx_seq; mutex_exit(&zilog->zl_lock); @@ -1155,22 +1236,28 @@ zil_commit_writer(zilog_t *zilog, uint64_t seq, uint64_t foid) */ if (zilog->zl_root_zio) { DTRACE_PROBE1(zil__cw3, zilog_t *, zilog); - (void) zio_wait(zilog->zl_root_zio); + error = zio_wait(zilog->zl_root_zio); zilog->zl_root_zio = NULL; DTRACE_PROBE1(zil__cw4, zilog_t *, zilog); zil_flush_vdevs(zilog); } - if (zilog->zl_log_error || lwb == NULL) { - zilog->zl_log_error = 0; + if (error || lwb == NULL) txg_wait_synced(zilog->zl_dmu_pool, 0); - } mutex_enter(&zilog->zl_lock); zilog->zl_writer = B_FALSE; ASSERT3U(commit_seq, >=, zilog->zl_commit_seq); zilog->zl_commit_seq = commit_seq; + + /* + * Remember the highest committed log sequence number for ztest. + * We only update this value when all the log writes succeeded, + * because ztest wants to ASSERT that it got the whole log chain. + */ + if (error == 0 && lwb != NULL) + zilog->zl_commit_lr_seq = zilog->zl_lr_seq; } /* @@ -1181,7 +1268,7 @@ zil_commit_writer(zilog_t *zilog, uint64_t seq, uint64_t foid) void zil_commit(zilog_t *zilog, uint64_t seq, uint64_t foid) { - if (zilog == NULL || seq == 0) + if (zilog->zl_sync == ZFS_SYNC_DISABLED || seq == 0) return; mutex_enter(&zilog->zl_lock); @@ -1190,7 +1277,7 @@ zil_commit(zilog_t *zilog, uint64_t seq, uint64_t foid) while (zilog->zl_writer) { cv_wait(&zilog->zl_cv_writer, &zilog->zl_lock); - if (seq < zilog->zl_commit_seq) { + if (seq <= zilog->zl_commit_seq) { mutex_exit(&zilog->zl_lock); return; } @@ -1202,6 +1289,33 @@ zil_commit(zilog_t *zilog, uint64_t seq, uint64_t foid) } /* + * Report whether all transactions are committed. + */ +static boolean_t +zil_is_committed(zilog_t *zilog) +{ + lwb_t *lwb; + boolean_t committed; + + mutex_enter(&zilog->zl_lock); + + while (zilog->zl_writer) + cv_wait(&zilog->zl_cv_writer, &zilog->zl_lock); + + if (!list_is_empty(&zilog->zl_itx_list)) + committed = B_FALSE; /* unpushed transactions */ + else if ((lwb = list_head(&zilog->zl_lwb_list)) == NULL) + committed = B_TRUE; /* intent log never used */ + else if (list_next(&zilog->zl_lwb_list, lwb) != NULL) + committed = B_FALSE; /* zil_sync() not done yet */ + else + committed = B_TRUE; /* everything synced */ + + mutex_exit(&zilog->zl_lock); + return (committed); +} + +/* * Called in syncing context to free committed log blocks and update log header. */ void @@ -1210,6 +1324,7 @@ zil_sync(zilog_t *zilog, dmu_tx_t *tx) zil_header_t *zh = zil_header_in_syncing_context(zilog); uint64_t txg = dmu_tx_get_txg(tx); spa_t *spa = zilog->zl_spa; + uint64_t *replayed_seq = &zilog->zl_replayed_seq[txg & TXG_MASK]; lwb_t *lwb; /* @@ -1223,7 +1338,11 @@ zil_sync(zilog_t *zilog, dmu_tx_t *tx) ASSERT(zilog->zl_stop_sync == 0); - zh->zh_replay_seq = zilog->zl_replayed_seq[txg & TXG_MASK]; + if (*replayed_seq != 0) { + ASSERT(zh->zh_replay_seq < *replayed_seq); + zh->zh_replay_seq = *replayed_seq; + *replayed_seq = 0; + } if (zilog->zl_destroy_txg == txg) { blkptr_t blk = zh->zh_log; @@ -1252,7 +1371,7 @@ zil_sync(zilog_t *zilog, dmu_tx_t *tx) if (lwb->lwb_buf != NULL || lwb->lwb_max_txg > txg) break; list_remove(&zilog->zl_lwb_list, lwb); - zio_free_blk(spa, &lwb->lwb_blk, txg); + zio_free_zil(spa, txg, &lwb->lwb_blk); kmem_cache_free(zil_lwb_cache, lwb); /* @@ -1280,6 +1399,18 @@ zil_fini(void) kmem_cache_destroy(zil_lwb_cache); } +void +zil_set_sync(zilog_t *zilog, uint64_t sync) +{ + zilog->zl_sync = sync; +} + +void +zil_set_logbias(zilog_t *zilog, uint64_t logbias) +{ + zilog->zl_logbias = logbias; +} + zilog_t * zil_alloc(objset_t *os, zil_header_t *zh_phys) { @@ -1292,6 +1423,8 @@ zil_alloc(objset_t *os, zil_header_t *zh_phys) zilog->zl_spa = dmu_objset_spa(os); zilog->zl_dmu_pool = dmu_objset_pool(os); zilog->zl_destroy_txg = TXG_INITIAL - 1; + zilog->zl_logbias = dmu_objset_logbias(os); + zilog->zl_sync = dmu_objset_syncprop(os); mutex_init(&zilog->zl_lock, NULL, MUTEX_DEFAULT, NULL); @@ -1368,7 +1501,7 @@ zil_close(zilog_t *zilog) if (!zil_is_committed(zilog)) { uint64_t txg; dmu_tx_t *tx = dmu_tx_create(zilog->zl_os); - (void) dmu_tx_assign(tx, TXG_WAIT); + VERIFY(dmu_tx_assign(tx, TXG_WAIT) == 0); dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); txg = dmu_tx_get_txg(tx); dmu_tx_commit(tx); @@ -1442,88 +1575,88 @@ zil_resume(zilog_t *zilog) } typedef struct zil_replay_arg { - objset_t *zr_os; zil_replay_func_t **zr_replay; void *zr_arg; boolean_t zr_byteswap; - char *zr_lrbuf; + char *zr_lr; } zil_replay_arg_t; -static void +static int +zil_replay_error(zilog_t *zilog, lr_t *lr, int error) +{ + char name[MAXNAMELEN]; + + zilog->zl_replaying_seq--; /* didn't actually replay this one */ + + dmu_objset_name(zilog->zl_os, name); + + cmn_err(CE_WARN, "ZFS replay transaction error %d, " + "dataset %s, seq 0x%llx, txtype %llu %s\n", error, name, + (u_longlong_t)lr->lrc_seq, + (u_longlong_t)(lr->lrc_txtype & ~TX_CI), + (lr->lrc_txtype & TX_CI) ? "CI" : ""); + + return (error); +} + +static int zil_replay_log_record(zilog_t *zilog, lr_t *lr, void *zra, uint64_t claim_txg) { zil_replay_arg_t *zr = zra; const zil_header_t *zh = zilog->zl_header; uint64_t reclen = lr->lrc_reclen; uint64_t txtype = lr->lrc_txtype; - char *name; - int pass, error; - - if (!zilog->zl_replay) /* giving up */ - return; + int error = 0; - if (lr->lrc_txg < claim_txg) /* already committed */ - return; + zilog->zl_replaying_seq = lr->lrc_seq; if (lr->lrc_seq <= zh->zh_replay_seq) /* already replayed */ - return; + return (0); + + if (lr->lrc_txg < claim_txg) /* already committed */ + return (0); /* Strip case-insensitive bit, still present in log record */ txtype &= ~TX_CI; - if (txtype == 0 || txtype >= TX_MAX_TYPE) { - error = EINVAL; - goto bad; + if (txtype == 0 || txtype >= TX_MAX_TYPE) + return (zil_replay_error(zilog, lr, EINVAL)); + + /* + * If this record type can be logged out of order, the object + * (lr_foid) may no longer exist. That's legitimate, not an error. + */ + if (TX_OOO(txtype)) { + error = dmu_object_info(zilog->zl_os, + ((lr_ooo_t *)lr)->lr_foid, NULL); + if (error == ENOENT || error == EEXIST) + return (0); } /* * Make a copy of the data so we can revise and extend it. */ - bcopy(lr, zr->zr_lrbuf, reclen); + bcopy(lr, zr->zr_lr, reclen); + + /* + * If this is a TX_WRITE with a blkptr, suck in the data. + */ + if (txtype == TX_WRITE && reclen == sizeof (lr_write_t)) { + error = zil_read_log_data(zilog, (lr_write_t *)lr, + zr->zr_lr + reclen); + if (error) + return (zil_replay_error(zilog, lr, error)); + } /* * The log block containing this lr may have been byteswapped * so that we can easily examine common fields like lrc_txtype. - * However, the log is a mix of different data types, and only the + * However, the log is a mix of different record types, and only the * replay vectors know how to byteswap their records. Therefore, if * the lr was byteswapped, undo it before invoking the replay vector. */ if (zr->zr_byteswap) - byteswap_uint64_array(zr->zr_lrbuf, reclen); - - /* - * If this is a TX_WRITE with a blkptr, suck in the data. - */ - if (txtype == TX_WRITE && reclen == sizeof (lr_write_t)) { - lr_write_t *lrw = (lr_write_t *)lr; - blkptr_t *wbp = &lrw->lr_blkptr; - uint64_t wlen = lrw->lr_length; - char *wbuf = zr->zr_lrbuf + reclen; - - if (BP_IS_HOLE(wbp)) { /* compressed to a hole */ - bzero(wbuf, wlen); - } else { - /* - * A subsequent write may have overwritten this block, - * in which case wbp may have been been freed and - * reallocated, and our read of wbp may fail with a - * checksum error. We can safely ignore this because - * the later write will provide the correct data. - */ - zbookmark_t zb; - - zb.zb_objset = dmu_objset_id(zilog->zl_os); - zb.zb_object = lrw->lr_foid; - zb.zb_level = -1; - zb.zb_blkid = lrw->lr_offset / BP_GET_LSIZE(wbp); - - (void) zio_wait(zio_read(NULL, zilog->zl_spa, - wbp, wbuf, BP_GET_LSIZE(wbp), NULL, NULL, - ZIO_PRIORITY_SYNC_READ, - ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE, &zb)); - (void) memmove(wbuf, wbuf + lrw->lr_blkoff, wlen); - } - } + byteswap_uint64_array(zr->zr_lr, reclen); /* * We must now do two things atomically: replay this log record, @@ -1531,42 +1664,30 @@ zil_replay_log_record(zilog_t *zilog, lr_t *lr, void *zra, uint64_t claim_txg) * we did so. At the end of each replay function the sequence number * is updated if we are in replay mode. */ - for (pass = 1; pass <= 2; pass++) { - zilog->zl_replaying_seq = lr->lrc_seq; - /* Only byteswap (if needed) on the 1st pass. */ - error = zr->zr_replay[txtype](zr->zr_arg, zr->zr_lrbuf, - zr->zr_byteswap && pass == 1); - - if (!error) - return; - + error = zr->zr_replay[txtype](zr->zr_arg, zr->zr_lr, zr->zr_byteswap); + if (error) { /* * The DMU's dnode layer doesn't see removes until the txg * commits, so a subsequent claim can spuriously fail with * EEXIST. So if we receive any error we try syncing out - * any removes then retry the transaction. + * any removes then retry the transaction. Note that we + * specify B_FALSE for byteswap now, so we don't do it twice. */ - if (pass == 1) - txg_wait_synced(spa_get_dsl(zilog->zl_spa), 0); + txg_wait_synced(spa_get_dsl(zilog->zl_spa), 0); + error = zr->zr_replay[txtype](zr->zr_arg, zr->zr_lr, B_FALSE); + if (error) + return (zil_replay_error(zilog, lr, error)); } - -bad: - ASSERT(error); - name = kmem_alloc(MAXNAMELEN, KM_SLEEP); - dmu_objset_name(zr->zr_os, name); - cmn_err(CE_WARN, "ZFS replay transaction error %d, " - "dataset %s, seq 0x%llx, txtype %llu %s\n", - error, name, (u_longlong_t)lr->lrc_seq, (u_longlong_t)txtype, - (lr->lrc_txtype & TX_CI) ? "CI" : ""); - zilog->zl_replay = B_FALSE; - kmem_free(name, MAXNAMELEN); + return (0); } /* ARGSUSED */ -static void +static int zil_incr_blks(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg) { zilog->zl_replay_blks++; + + return (0); } /* @@ -1584,11 +1705,10 @@ zil_replay(objset_t *os, void *arg, zil_replay_func_t *replay_func[TX_MAX_TYPE]) return; } - zr.zr_os = os; zr.zr_replay = replay_func; zr.zr_arg = arg; zr.zr_byteswap = BP_SHOULD_BYTESWAP(&zh->zh_log); - zr.zr_lrbuf = kmem_alloc(2 * SPA_MAXBLOCKSIZE, KM_SLEEP); + zr.zr_lr = kmem_alloc(2 * SPA_MAXBLOCKSIZE, KM_SLEEP); /* * Wait for in-progress removes to sync before starting replay. @@ -1596,69 +1716,42 @@ zil_replay(objset_t *os, void *arg, zil_replay_func_t *replay_func[TX_MAX_TYPE]) txg_wait_synced(zilog->zl_dmu_pool, 0); zilog->zl_replay = B_TRUE; - zilog->zl_replay_time = lbolt; + zilog->zl_replay_time = ddi_get_lbolt(); ASSERT(zilog->zl_replay_blks == 0); (void) zil_parse(zilog, zil_incr_blks, zil_replay_log_record, &zr, zh->zh_claim_txg); - kmem_free(zr.zr_lrbuf, 2 * SPA_MAXBLOCKSIZE); + kmem_free(zr.zr_lr, 2 * SPA_MAXBLOCKSIZE); zil_destroy(zilog, B_FALSE); txg_wait_synced(zilog->zl_dmu_pool, zilog->zl_destroy_txg); zilog->zl_replay = B_FALSE; } -/* - * Report whether all transactions are committed - */ -int -zil_is_committed(zilog_t *zilog) +boolean_t +zil_replaying(zilog_t *zilog, dmu_tx_t *tx) { - lwb_t *lwb; - int ret; - - mutex_enter(&zilog->zl_lock); - while (zilog->zl_writer) - cv_wait(&zilog->zl_cv_writer, &zilog->zl_lock); - - /* recent unpushed intent log transactions? */ - if (!list_is_empty(&zilog->zl_itx_list)) { - ret = B_FALSE; - goto out; - } - - /* intent log never used? */ - lwb = list_head(&zilog->zl_lwb_list); - if (lwb == NULL) { - ret = B_TRUE; - goto out; - } + if (zilog->zl_sync == ZFS_SYNC_DISABLED) + return (B_TRUE); - /* - * more than 1 log buffer means zil_sync() hasn't yet freed - * entries after a txg has committed - */ - if (list_next(&zilog->zl_lwb_list, lwb)) { - ret = B_FALSE; - goto out; + if (zilog->zl_replay) { + dsl_dataset_dirty(dmu_objset_ds(zilog->zl_os), tx); + zilog->zl_replayed_seq[dmu_tx_get_txg(tx) & TXG_MASK] = + zilog->zl_replaying_seq; + return (B_TRUE); } - ASSERT(zil_empty(zilog)); - ret = B_TRUE; -out: - cv_broadcast(&zilog->zl_cv_writer); - mutex_exit(&zilog->zl_lock); - return (ret); + return (B_FALSE); } /* ARGSUSED */ int -zil_vdev_offline(char *osname, void *arg) +zil_vdev_offline(const char *osname, void *arg) { objset_t *os; zilog_t *zilog; int error; - error = dmu_objset_open(osname, DMU_OST_ANY, DS_MODE_USER, &os); + error = dmu_objset_hold(osname, FTAG, &os); if (error) return (error); @@ -1667,6 +1760,6 @@ zil_vdev_offline(char *osname, void *arg) error = EEXIST; else zil_resume(zilog); - dmu_objset_close(os); + dmu_objset_rele(os, FTAG); return (error); } diff --git a/module/zfs/zio.c b/module/zfs/zio.c index a2bdab9a7..88d80af4e 100644 --- a/module/zfs/zio.c +++ b/module/zfs/zio.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> @@ -32,6 +31,9 @@ #include <sys/zio_impl.h> #include <sys/zio_compress.h> #include <sys/zio_checksum.h> +#include <sys/dmu_objset.h> +#include <sys/arc.h> +#include <sys/ddt.h> /* * ========================================================================== @@ -42,13 +44,15 @@ uint8_t zio_priority_table[ZIO_PRIORITY_TABLE_SIZE] = { 0, /* ZIO_PRIORITY_NOW */ 0, /* ZIO_PRIORITY_SYNC_READ */ 0, /* ZIO_PRIORITY_SYNC_WRITE */ - 6, /* ZIO_PRIORITY_ASYNC_READ */ - 4, /* ZIO_PRIORITY_ASYNC_WRITE */ - 4, /* ZIO_PRIORITY_FREE */ - 0, /* ZIO_PRIORITY_CACHE_FILL */ 0, /* ZIO_PRIORITY_LOG_WRITE */ + 1, /* ZIO_PRIORITY_CACHE_FILL */ + 1, /* ZIO_PRIORITY_AGG */ + 4, /* ZIO_PRIORITY_FREE */ + 4, /* ZIO_PRIORITY_ASYNC_WRITE */ + 6, /* ZIO_PRIORITY_ASYNC_READ */ 10, /* ZIO_PRIORITY_RESILVER */ 20, /* ZIO_PRIORITY_SCRUB */ + 2, /* ZIO_PRIORITY_DDT_PREFETCH */ }; /* @@ -57,11 +61,9 @@ uint8_t zio_priority_table[ZIO_PRIORITY_TABLE_SIZE] = { * ========================================================================== */ char *zio_type_name[ZIO_TYPES] = { - "null", "read", "write", "free", "claim", "ioctl" }; - -#define SYNC_PASS_DEFERRED_FREE 1 /* defer frees after this pass */ -#define SYNC_PASS_DONT_COMPRESS 4 /* don't compress after this pass */ -#define SYNC_PASS_REWRITE 1 /* rewrite new bps after this pass */ + "zio_null", "zio_read", "zio_write", "zio_free", "zio_claim", + "zio_ioctl" +}; /* * ========================================================================== @@ -81,8 +83,15 @@ extern vmem_t *zio_alloc_arena; * An allocating zio is one that either currently has the DVA allocate * stage set or will have it later in its lifetime. */ -#define IO_IS_ALLOCATING(zio) \ - ((zio)->io_orig_pipeline & (1U << ZIO_STAGE_DVA_ALLOCATE)) +#define IO_IS_ALLOCATING(zio) ((zio)->io_orig_pipeline & ZIO_STAGE_DVA_ALLOCATE) + +boolean_t zio_requeue_io_start_cut_in_line = B_TRUE; + +#ifdef ZFS_DEBUG +int zio_buf_debug_limit = 16384; +#else +int zio_buf_debug_limit = 0; +#endif void zio_init(void) @@ -124,12 +133,13 @@ zio_init(void) char name[36]; (void) sprintf(name, "zio_buf_%lu", (ulong_t)size); zio_buf_cache[c] = kmem_cache_create(name, size, - align, NULL, NULL, NULL, NULL, NULL, KMC_NODEBUG); + align, NULL, NULL, NULL, NULL, NULL, + size > zio_buf_debug_limit ? KMC_NODEBUG : 0); (void) sprintf(name, "zio_data_buf_%lu", (ulong_t)size); zio_data_buf_cache[c] = kmem_cache_create(name, size, align, NULL, NULL, NULL, NULL, data_alloc_arena, - KMC_NODEBUG); + size > zio_buf_debug_limit ? KMC_NODEBUG : 0); } } @@ -264,7 +274,8 @@ zio_pop_transforms(zio_t *zio) zt->zt_transform(zio, zt->zt_orig_data, zt->zt_orig_size); - zio_buf_free(zio->io_data, zt->zt_bufsize); + if (zt->zt_bufsize != 0) + zio_buf_free(zio->io_data, zt->zt_bufsize); zio->io_data = zt->zt_orig_data; zio->io_size = zt->zt_orig_size; @@ -293,7 +304,7 @@ zio_decompress(zio_t *zio, void *data, uint64_t size) { if (zio->io_error == 0 && zio_decompress_data(BP_GET_COMPRESS(zio->io_bp), - zio->io_data, zio->io_size, data, size) != 0) + zio->io_data, data, zio->io_size, size) != 0) zio->io_error = EIO; } @@ -378,6 +389,9 @@ zio_add_child(zio_t *pio, zio_t *cio) list_insert_head(&pio->io_child_list, zl); list_insert_head(&cio->io_parent_list, zl); + pio->io_child_count++; + cio->io_parent_count++; + mutex_exit(&pio->io_lock); mutex_exit(&cio->io_lock); } @@ -394,6 +408,9 @@ zio_remove_child(zio_t *pio, zio_t *cio, zio_link_t *zl) list_remove(&pio->io_child_list, zl); list_remove(&cio->io_parent_list, zl); + pio->io_child_count--; + cio->io_parent_count--; + mutex_exit(&pio->io_lock); mutex_exit(&cio->io_lock); @@ -409,7 +426,7 @@ zio_wait_for_children(zio_t *zio, enum zio_child child, enum zio_wait_type wait) mutex_enter(&zio->io_lock); ASSERT(zio->io_stall == NULL); if (*countp != 0) { - zio->io_stage--; + zio->io_stage >>= 1; zio->io_stall = countp; waiting = B_TRUE; } @@ -451,10 +468,11 @@ zio_inherit_child_errors(zio_t *zio, enum zio_child c) * ========================================================================== */ static zio_t * -zio_create(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, +zio_create(zio_t *pio, spa_t *spa, uint64_t txg, const blkptr_t *bp, void *data, uint64_t size, zio_done_func_t *done, void *private, - zio_type_t type, int priority, int flags, vdev_t *vd, uint64_t offset, - const zbookmark_t *zb, uint8_t stage, uint32_t pipeline) + zio_type_t type, int priority, enum zio_flag flags, + vdev_t *vd, uint64_t offset, const zbookmark_t *zb, + enum zio_stage stage, enum zio_stage pipeline) { zio_t *zio; @@ -481,14 +499,17 @@ zio_create(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, zio->io_child_type = ZIO_CHILD_VDEV; else if (flags & ZIO_FLAG_GANG_CHILD) zio->io_child_type = ZIO_CHILD_GANG; + else if (flags & ZIO_FLAG_DDT_CHILD) + zio->io_child_type = ZIO_CHILD_DDT; else zio->io_child_type = ZIO_CHILD_LOGICAL; if (bp != NULL) { - zio->io_bp = bp; + zio->io_bp = (blkptr_t *)bp; zio->io_bp_copy = *bp; zio->io_bp_orig = *bp; - if (type != ZIO_TYPE_WRITE) + if (type != ZIO_TYPE_WRITE || + zio->io_child_type == ZIO_CHILD_DDT) zio->io_bp = &zio->io_bp_copy; /* so caller can free */ if (zio->io_child_type == ZIO_CHILD_LOGICAL) zio->io_logical = zio; @@ -498,14 +519,14 @@ zio_create(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, zio->io_spa = spa; zio->io_txg = txg; - zio->io_data = data; - zio->io_size = size; zio->io_done = done; zio->io_private = private; zio->io_type = type; zio->io_priority = priority; zio->io_vd = vd; zio->io_offset = offset; + zio->io_orig_data = zio->io_data = data; + zio->io_orig_size = zio->io_size = size; zio->io_orig_flags = zio->io_flags = flags; zio->io_orig_stage = zio->io_stage = stage; zio->io_orig_pipeline = zio->io_pipeline = pipeline; @@ -539,7 +560,7 @@ zio_destroy(zio_t *zio) zio_t * zio_null(zio_t *pio, spa_t *spa, vdev_t *vd, zio_done_func_t *done, - void *private, int flags) + void *private, enum zio_flag flags) { zio_t *zio; @@ -551,7 +572,7 @@ zio_null(zio_t *pio, spa_t *spa, vdev_t *vd, zio_done_func_t *done, } zio_t * -zio_root(spa_t *spa, zio_done_func_t *done, void *private, int flags) +zio_root(spa_t *spa, zio_done_func_t *done, void *private, enum zio_flag flags) { return (zio_null(NULL, spa, NULL, done, private, flags)); } @@ -559,33 +580,24 @@ zio_root(spa_t *spa, zio_done_func_t *done, void *private, int flags) zio_t * zio_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, void *data, uint64_t size, zio_done_func_t *done, void *private, - int priority, int flags, const zbookmark_t *zb) + int priority, enum zio_flag flags, const zbookmark_t *zb) { zio_t *zio; - zio = zio_create(pio, spa, bp->blk_birth, (blkptr_t *)bp, + zio = zio_create(pio, spa, BP_PHYSICAL_BIRTH(bp), bp, data, size, done, private, ZIO_TYPE_READ, priority, flags, NULL, 0, zb, - ZIO_STAGE_OPEN, ZIO_READ_PIPELINE); + ZIO_STAGE_OPEN, (flags & ZIO_FLAG_DDT_CHILD) ? + ZIO_DDT_CHILD_READ_PIPELINE : ZIO_READ_PIPELINE); return (zio); } -void -zio_skip_write(zio_t *zio) -{ - ASSERT(zio->io_type == ZIO_TYPE_WRITE); - ASSERT(zio->io_stage == ZIO_STAGE_READY); - ASSERT(!BP_IS_GANG(zio->io_bp)); - - zio->io_pipeline &= ~ZIO_VDEV_IO_STAGES; -} - zio_t * zio_write(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - void *data, uint64_t size, zio_prop_t *zp, + void *data, uint64_t size, const zio_prop_t *zp, zio_done_func_t *ready, zio_done_func_t *done, void *private, - int priority, int flags, const zbookmark_t *zb) + int priority, enum zio_flag flags, const zbookmark_t *zb) { zio_t *zio; @@ -595,13 +607,15 @@ zio_write(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, zp->zp_compress < ZIO_COMPRESS_FUNCTIONS && zp->zp_type < DMU_OT_NUMTYPES && zp->zp_level < 32 && - zp->zp_ndvas > 0 && - zp->zp_ndvas <= spa_max_replication(spa)); - ASSERT(ready != NULL); + zp->zp_copies > 0 && + zp->zp_copies <= spa_max_replication(spa) && + zp->zp_dedup <= 1 && + zp->zp_dedup_verify <= 1); zio = zio_create(pio, spa, txg, bp, data, size, done, private, ZIO_TYPE_WRITE, priority, flags, NULL, 0, zb, - ZIO_STAGE_OPEN, ZIO_WRITE_PIPELINE); + ZIO_STAGE_OPEN, (flags & ZIO_FLAG_DDT_CHILD) ? + ZIO_DDT_CHILD_WRITE_PIPELINE : ZIO_WRITE_PIPELINE); zio->io_ready = ready; zio->io_prop = *zp; @@ -612,7 +626,7 @@ zio_write(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, zio_t * zio_rewrite(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, void *data, uint64_t size, zio_done_func_t *done, void *private, int priority, - int flags, zbookmark_t *zb) + enum zio_flag flags, zbookmark_t *zb) { zio_t *zio; @@ -623,33 +637,47 @@ zio_rewrite(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, void *data, return (zio); } +void +zio_write_override(zio_t *zio, blkptr_t *bp, int copies) +{ + ASSERT(zio->io_type == ZIO_TYPE_WRITE); + ASSERT(zio->io_child_type == ZIO_CHILD_LOGICAL); + ASSERT(zio->io_stage == ZIO_STAGE_OPEN); + ASSERT(zio->io_txg == spa_syncing_txg(zio->io_spa)); + + zio->io_prop.zp_copies = copies; + zio->io_bp_override = bp; +} + +void +zio_free(spa_t *spa, uint64_t txg, const blkptr_t *bp) +{ + bplist_append(&spa->spa_free_bplist[txg & TXG_MASK], bp); +} + zio_t * -zio_free(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - zio_done_func_t *done, void *private, int flags) +zio_free_sync(zio_t *pio, spa_t *spa, uint64_t txg, const blkptr_t *bp, + enum zio_flag flags) { zio_t *zio; - ASSERT(!BP_IS_HOLE(bp)); + dprintf_bp(bp, "freeing in txg %llu, pass %u", + (longlong_t)txg, spa->spa_sync_pass); - if (bp->blk_fill == BLK_FILL_ALREADY_FREED) - return (zio_null(pio, spa, NULL, NULL, NULL, flags)); - - if (txg == spa->spa_syncing_txg && - spa_sync_pass(spa) > SYNC_PASS_DEFERRED_FREE) { - bplist_enqueue_deferred(&spa->spa_sync_bplist, bp); - return (zio_null(pio, spa, NULL, NULL, NULL, flags)); - } + ASSERT(!BP_IS_HOLE(bp)); + ASSERT(spa_syncing_txg(spa) == txg); + ASSERT(spa_sync_pass(spa) <= SYNC_PASS_DEFERRED_FREE); zio = zio_create(pio, spa, txg, bp, NULL, BP_GET_PSIZE(bp), - done, private, ZIO_TYPE_FREE, ZIO_PRIORITY_FREE, flags, + NULL, NULL, ZIO_TYPE_FREE, ZIO_PRIORITY_FREE, flags, NULL, 0, NULL, ZIO_STAGE_OPEN, ZIO_FREE_PIPELINE); return (zio); } zio_t * -zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, - zio_done_func_t *done, void *private, int flags) +zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, const blkptr_t *bp, + zio_done_func_t *done, void *private, enum zio_flag flags) { zio_t *zio; @@ -663,9 +691,11 @@ zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, * * All claims *must* be resolved in the first txg -- before the SPA * starts allocating blocks -- so that nothing is allocated twice. + * If txg == 0 we just verify that the block is claimable. */ ASSERT3U(spa->spa_uberblock.ub_rootbp.blk_birth, <, spa_first_txg(spa)); - ASSERT3U(spa_first_txg(spa), <=, txg); + ASSERT(txg == spa_first_txg(spa) || txg == 0); + ASSERT(!BP_GET_DEDUP(bp) || !spa_writeable(spa)); /* zdb(1M) */ zio = zio_create(pio, spa, txg, bp, NULL, BP_GET_PSIZE(bp), done, private, ZIO_TYPE_CLAIM, ZIO_PRIORITY_NOW, flags, @@ -676,7 +706,7 @@ zio_claim(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, zio_t * zio_ioctl(zio_t *pio, spa_t *spa, vdev_t *vd, int cmd, - zio_done_func_t *done, void *private, int priority, int flags) + zio_done_func_t *done, void *private, int priority, enum zio_flag flags) { zio_t *zio; int c; @@ -701,7 +731,7 @@ zio_ioctl(zio_t *pio, spa_t *spa, vdev_t *vd, int cmd, zio_t * zio_read_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, void *data, int checksum, zio_done_func_t *done, void *private, - int priority, int flags, boolean_t labels) + int priority, enum zio_flag flags, boolean_t labels) { zio_t *zio; @@ -722,7 +752,7 @@ zio_read_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, zio_t * zio_write_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, void *data, int checksum, zio_done_func_t *done, void *private, - int priority, int flags, boolean_t labels) + int priority, enum zio_flag flags, boolean_t labels) { zio_t *zio; @@ -737,9 +767,9 @@ zio_write_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, zio->io_prop.zp_checksum = checksum; - if (zio_checksum_table[checksum].ci_zbt) { + if (zio_checksum_table[checksum].ci_eck) { /* - * zbt checksums are necessarily destructive -- they modify + * zec checksums are necessarily destructive -- they modify * the end of the write buffer to hold the verifier/checksum. * Therefore, we must make a local copy in case the data is * being written to multiple places in parallel. @@ -757,10 +787,10 @@ zio_write_phys(zio_t *pio, vdev_t *vd, uint64_t offset, uint64_t size, */ zio_t * zio_vdev_child_io(zio_t *pio, blkptr_t *bp, vdev_t *vd, uint64_t offset, - void *data, uint64_t size, int type, int priority, int flags, + void *data, uint64_t size, int type, int priority, enum zio_flag flags, zio_done_func_t *done, void *private) { - uint32_t pipeline = ZIO_VDEV_CHILD_PIPELINE; + enum zio_stage pipeline = ZIO_VDEV_CHILD_PIPELINE; zio_t *zio; ASSERT(vd->vdev_parent == @@ -773,26 +803,33 @@ zio_vdev_child_io(zio_t *pio, blkptr_t *bp, vdev_t *vd, uint64_t offset, * detection as close to the leaves as possible and * eliminates redundant checksums in the interior nodes. */ - pipeline |= 1U << ZIO_STAGE_CHECKSUM_VERIFY; - pio->io_pipeline &= ~(1U << ZIO_STAGE_CHECKSUM_VERIFY); + pipeline |= ZIO_STAGE_CHECKSUM_VERIFY; + pio->io_pipeline &= ~ZIO_STAGE_CHECKSUM_VERIFY; } if (vd->vdev_children == 0) offset += VDEV_LABEL_START_SIZE; + flags |= ZIO_VDEV_CHILD_FLAGS(pio) | ZIO_FLAG_DONT_PROPAGATE; + + /* + * If we've decided to do a repair, the write is not speculative -- + * even if the original read was. + */ + if (flags & ZIO_FLAG_IO_REPAIR) + flags &= ~ZIO_FLAG_SPECULATIVE; + zio = zio_create(pio, pio->io_spa, pio->io_txg, bp, data, size, - done, private, type, priority, - (pio->io_flags & ZIO_FLAG_VDEV_INHERIT) | - ZIO_FLAG_CANFAIL | ZIO_FLAG_DONT_PROPAGATE | flags, - vd, offset, &pio->io_bookmark, - ZIO_STAGE_VDEV_IO_START - 1, pipeline); + done, private, type, priority, flags, vd, offset, &pio->io_bookmark, + ZIO_STAGE_VDEV_IO_START >> 1, pipeline); return (zio); } zio_t * zio_vdev_delegated_io(vdev_t *vd, uint64_t offset, void *data, uint64_t size, - int type, int priority, int flags, zio_done_func_t *done, void *private) + int type, int priority, enum zio_flag flags, + zio_done_func_t *done, void *private) { zio_t *zio; @@ -802,7 +839,7 @@ zio_vdev_delegated_io(vdev_t *vd, uint64_t offset, void *data, uint64_t size, data, size, done, private, type, priority, flags | ZIO_FLAG_CANFAIL | ZIO_FLAG_DONT_RETRY, vd, offset, NULL, - ZIO_STAGE_VDEV_IO_START - 1, ZIO_VDEV_CHILD_PIPELINE); + ZIO_STAGE_VDEV_IO_START >> 1, ZIO_VDEV_CHILD_PIPELINE); return (zio); } @@ -815,6 +852,23 @@ zio_flush(zio_t *zio, vdev_t *vd) ZIO_FLAG_CANFAIL | ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY)); } +void +zio_shrink(zio_t *zio, uint64_t size) +{ + ASSERT(zio->io_executor == NULL); + ASSERT(zio->io_orig_size == zio->io_size); + ASSERT(size <= zio->io_size); + + /* + * We don't shrink for raidz because of problems with the + * reconstruction when reading back less than the block size. + * Note, BP_IS_RAIDZ() assumes no compression. + */ + ASSERT(BP_GET_COMPRESS(zio->io_bp) == ZIO_COMPRESS_OFF); + if (!BP_IS_RAIDZ(zio->io_bp)) + zio->io_orig_size = zio->io_size = size; +} + /* * ========================================================================== * Prepare to read and write logical blocks @@ -829,28 +883,33 @@ zio_read_bp_init(zio_t *zio) if (BP_GET_COMPRESS(bp) != ZIO_COMPRESS_OFF && zio->io_child_type == ZIO_CHILD_LOGICAL && !(zio->io_flags & ZIO_FLAG_RAW)) { - uint64_t csize = BP_GET_PSIZE(bp); - void *cbuf = zio_buf_alloc(csize); + uint64_t psize = BP_GET_PSIZE(bp); + void *cbuf = zio_buf_alloc(psize); - zio_push_transform(zio, cbuf, csize, csize, zio_decompress); + zio_push_transform(zio, cbuf, psize, psize, zio_decompress); } if (!dmu_ot[BP_GET_TYPE(bp)].ot_metadata && BP_GET_LEVEL(bp) == 0) zio->io_flags |= ZIO_FLAG_DONT_CACHE; + if (BP_GET_TYPE(bp) == DMU_OT_DDT_ZAP) + zio->io_flags |= ZIO_FLAG_DONT_CACHE; + + if (BP_GET_DEDUP(bp) && zio->io_child_type == ZIO_CHILD_LOGICAL) + zio->io_pipeline = ZIO_DDT_READ_PIPELINE; + return (ZIO_PIPELINE_CONTINUE); } static int zio_write_bp_init(zio_t *zio) { + spa_t *spa = zio->io_spa; zio_prop_t *zp = &zio->io_prop; - int compress = zp->zp_compress; + enum zio_compress compress = zp->zp_compress; blkptr_t *bp = zio->io_bp; - void *cbuf; uint64_t lsize = zio->io_size; - uint64_t csize = lsize; - uint64_t cbufsize = 0; + uint64_t psize = lsize; int pass = 1; /* @@ -864,7 +923,29 @@ zio_write_bp_init(zio_t *zio) if (!IO_IS_ALLOCATING(zio)) return (ZIO_PIPELINE_CONTINUE); - ASSERT(compress != ZIO_COMPRESS_INHERIT); + ASSERT(zio->io_child_type != ZIO_CHILD_DDT); + + if (zio->io_bp_override) { + ASSERT(bp->blk_birth != zio->io_txg); + ASSERT(BP_GET_DEDUP(zio->io_bp_override) == 0); + + *bp = *zio->io_bp_override; + zio->io_pipeline = ZIO_INTERLOCK_PIPELINE; + + if (BP_IS_HOLE(bp) || !zp->zp_dedup) + return (ZIO_PIPELINE_CONTINUE); + + ASSERT(zio_checksum_table[zp->zp_checksum].ci_dedup || + zp->zp_dedup_verify); + + if (BP_GET_CHECKSUM(bp) == zp->zp_checksum) { + BP_SET_DEDUP(bp, 1); + zio->io_pipeline |= ZIO_STAGE_DDT_WRITE; + return (ZIO_PIPELINE_CONTINUE); + } + zio->io_bp_override = NULL; + BP_ZERO(bp); + } if (bp->blk_birth == zio->io_txg) { /* @@ -876,22 +957,29 @@ zio_write_bp_init(zio_t *zio) * convergence take longer. Therefore, after the first * few passes, stop compressing to ensure convergence. */ - pass = spa_sync_pass(zio->io_spa); + pass = spa_sync_pass(spa); + + ASSERT(zio->io_txg == spa_syncing_txg(spa)); + ASSERT(zio->io_child_type == ZIO_CHILD_LOGICAL); + ASSERT(!BP_GET_DEDUP(bp)); if (pass > SYNC_PASS_DONT_COMPRESS) compress = ZIO_COMPRESS_OFF; /* Make sure someone doesn't change their mind on overwrites */ - ASSERT(MIN(zp->zp_ndvas + BP_IS_GANG(bp), - spa_max_replication(zio->io_spa)) == BP_GET_NDVAS(bp)); + ASSERT(MIN(zp->zp_copies + BP_IS_GANG(bp), + spa_max_replication(spa)) == BP_GET_NDVAS(bp)); } if (compress != ZIO_COMPRESS_OFF) { - if (!zio_compress_data(compress, zio->io_data, zio->io_size, - &cbuf, &csize, &cbufsize)) { + void *cbuf = zio_buf_alloc(lsize); + psize = zio_compress_data(compress, zio->io_data, cbuf, lsize); + if (psize == 0 || psize == lsize) { compress = ZIO_COMPRESS_OFF; - } else if (csize != 0) { - zio_push_transform(zio, cbuf, csize, cbufsize, NULL); + zio_buf_free(cbuf, lsize); + } else { + ASSERT(psize < lsize); + zio_push_transform(zio, cbuf, psize, lsize, NULL); } } @@ -903,10 +991,10 @@ zio_write_bp_init(zio_t *zio) * spa_sync() to allocate new blocks, but force rewrites after that. * There should only be a handful of blocks after pass 1 in any case. */ - if (bp->blk_birth == zio->io_txg && BP_GET_PSIZE(bp) == csize && + if (bp->blk_birth == zio->io_txg && BP_GET_PSIZE(bp) == psize && pass > SYNC_PASS_REWRITE) { - ASSERT(csize != 0); - uint32_t gang_stages = zio->io_pipeline & ZIO_GANG_STAGES; + ASSERT(psize != 0); + enum zio_stage gang_stages = zio->io_pipeline & ZIO_GANG_STAGES; zio->io_pipeline = ZIO_REWRITE_PIPELINE | gang_stages; zio->io_flags |= ZIO_FLAG_IO_REWRITE; } else { @@ -914,17 +1002,36 @@ zio_write_bp_init(zio_t *zio) zio->io_pipeline = ZIO_WRITE_PIPELINE; } - if (csize == 0) { + if (psize == 0) { zio->io_pipeline = ZIO_INTERLOCK_PIPELINE; } else { ASSERT(zp->zp_checksum != ZIO_CHECKSUM_GANG_HEADER); BP_SET_LSIZE(bp, lsize); - BP_SET_PSIZE(bp, csize); + BP_SET_PSIZE(bp, psize); BP_SET_COMPRESS(bp, compress); BP_SET_CHECKSUM(bp, zp->zp_checksum); BP_SET_TYPE(bp, zp->zp_type); BP_SET_LEVEL(bp, zp->zp_level); + BP_SET_DEDUP(bp, zp->zp_dedup); BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); + if (zp->zp_dedup) { + ASSERT(zio->io_child_type == ZIO_CHILD_LOGICAL); + ASSERT(!(zio->io_flags & ZIO_FLAG_IO_REWRITE)); + zio->io_pipeline = ZIO_DDT_WRITE_PIPELINE; + } + } + + return (ZIO_PIPELINE_CONTINUE); +} + +static int +zio_free_bp_init(zio_t *zio) +{ + blkptr_t *bp = zio->io_bp; + + if (zio->io_child_type == ZIO_CHILD_LOGICAL) { + if (BP_GET_DEDUP(bp)) + zio->io_pipeline = ZIO_DDT_FREE_PIPELINE; } return (ZIO_PIPELINE_CONTINUE); @@ -937,9 +1044,11 @@ zio_write_bp_init(zio_t *zio) */ static void -zio_taskq_dispatch(zio_t *zio, enum zio_taskq_type q) +zio_taskq_dispatch(zio_t *zio, enum zio_taskq_type q, boolean_t cutinline) { + spa_t *spa = zio->io_spa; zio_type_t t = zio->io_type; + int flags = TQ_SLEEP | (cutinline ? TQ_FRONT : 0); /* * If we're a config writer or a probe, the normal issue and @@ -955,8 +1064,16 @@ zio_taskq_dispatch(zio_t *zio, enum zio_taskq_type q) if (t == ZIO_TYPE_WRITE && zio->io_vd && zio->io_vd->vdev_aux) t = ZIO_TYPE_NULL; - (void) taskq_dispatch(zio->io_spa->spa_zio_taskq[t][q], - (task_func_t *)zio_execute, zio, TQ_SLEEP); + /* + * If this is a high priority I/O, then use the high priority taskq. + */ + if (zio->io_priority == ZIO_PRIORITY_NOW && + spa->spa_zio_taskq[t][q + 1] != NULL) + q++; + + ASSERT3U(q, <, ZIO_TASKQ_TYPES); + (void) taskq_dispatch(spa->spa_zio_taskq[t][q], + (task_func_t *)zio_execute, zio, flags); } static boolean_t @@ -975,7 +1092,7 @@ zio_taskq_member(zio_t *zio, enum zio_taskq_type q) static int zio_issue_async(zio_t *zio) { - zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE); + zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE, B_FALSE); return (ZIO_PIPELINE_STOP); } @@ -983,7 +1100,7 @@ zio_issue_async(zio_t *zio) void zio_interrupt(zio_t *zio) { - zio_taskq_dispatch(zio, ZIO_TASKQ_INTERRUPT); + zio_taskq_dispatch(zio, ZIO_TASKQ_INTERRUPT, B_FALSE); } /* @@ -999,7 +1116,7 @@ zio_interrupt(zio_t *zio) * There's no locking on io_stage because there's no legitimate way * for multiple threads to be attempting to process the same I/O. */ -static zio_pipe_stage_t *zio_pipeline[ZIO_STAGES]; +static zio_pipe_stage_t *zio_pipeline[]; void zio_execute(zio_t *zio) @@ -1007,32 +1124,39 @@ zio_execute(zio_t *zio) zio->io_executor = curthread; while (zio->io_stage < ZIO_STAGE_DONE) { - uint32_t pipeline = zio->io_pipeline; - zio_stage_t stage = zio->io_stage; + enum zio_stage pipeline = zio->io_pipeline; + enum zio_stage stage = zio->io_stage; int rv; ASSERT(!MUTEX_HELD(&zio->io_lock)); + ASSERT(ISP2(stage)); + ASSERT(zio->io_stall == NULL); - while (((1U << ++stage) & pipeline) == 0) - continue; + do { + stage <<= 1; + } while ((stage & pipeline) == 0); ASSERT(stage <= ZIO_STAGE_DONE); - ASSERT(zio->io_stall == NULL); /* * If we are in interrupt context and this pipeline stage * will grab a config lock that is held across I/O, - * issue async to avoid deadlock. + * or may wait for an I/O that needs an interrupt thread + * to complete, issue async to avoid deadlock. + * + * For VDEV_IO_START, we cut in line so that the io will + * be sent to disk promptly. */ - if (((1U << stage) & ZIO_CONFIG_LOCK_BLOCKING_STAGES) && - zio->io_vd == NULL && + if ((stage & ZIO_BLOCKING_STAGES) && zio->io_vd == NULL && zio_taskq_member(zio, ZIO_TASKQ_INTERRUPT)) { - zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE); + boolean_t cut = (stage == ZIO_STAGE_VDEV_IO_START) ? + zio_requeue_io_start_cut_in_line : B_FALSE; + zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE, cut); return; } zio->io_stage = stage; - rv = zio_pipeline[stage](zio); + rv = zio_pipeline[highbit(stage) - 1](zio); if (rv == ZIO_PIPELINE_STOP) return; @@ -1115,19 +1239,8 @@ zio_reexecute(zio_t *pio) for (int c = 0; c < ZIO_CHILD_TYPES; c++) pio->io_child_error[c] = 0; - if (IO_IS_ALLOCATING(pio)) { - /* - * Remember the failed bp so that the io_ready() callback - * can update its accounting upon reexecution. The block - * was already freed in zio_done(); we indicate this with - * a fill count of -1 so that zio_free() knows to skip it. - */ - blkptr_t *bp = pio->io_bp; - ASSERT(bp->blk_birth == 0 || bp->blk_birth == pio->io_txg); - bp->blk_fill = BLK_FILL_ALREADY_FREED; - pio->io_bp_orig = *bp; - BP_ZERO(bp); - } + if (IO_IS_ALLOCATING(pio)) + BP_ZERO(pio->io_bp); /* * As we reexecute pio's children, new children could be created. @@ -1315,6 +1428,12 @@ zio_rewrite_gang(zio_t *pio, blkptr_t *bp, zio_gang_node_t *gn, void *data) zio_checksum_compute(zio, BP_GET_CHECKSUM(bp), data, BP_GET_PSIZE(bp)); } + /* + * If we are here to damage data for testing purposes, + * leave the GBH alone so that we can detect the damage. + */ + if (pio->io_gang_leader->io_flags & ZIO_FLAG_INDUCE_DAMAGE) + zio->io_pipeline &= ~ZIO_VDEV_IO_STAGES; } else { zio = zio_rewrite(pio, pio->io_spa, pio->io_txg, bp, data, BP_GET_PSIZE(bp), NULL, NULL, pio->io_priority, @@ -1328,8 +1447,8 @@ zio_rewrite_gang(zio_t *pio, blkptr_t *bp, zio_gang_node_t *gn, void *data) zio_t * zio_free_gang(zio_t *pio, blkptr_t *bp, zio_gang_node_t *gn, void *data) { - return (zio_free(pio, pio->io_spa, pio->io_txg, bp, - NULL, NULL, ZIO_GANG_CHILD_FLAGS(pio))); + return (zio_free_sync(pio, pio->io_spa, pio->io_txg, bp, + ZIO_GANG_CHILD_FLAGS(pio))); } /* ARGSUSED */ @@ -1413,7 +1532,7 @@ zio_gang_tree_assemble_done(zio_t *zio) blkptr_t *bp = zio->io_bp; ASSERT(gio == zio_unique_parent(zio)); - ASSERT(zio_walk_children(zio) == NULL); + ASSERT(zio->io_child_count == 0); if (zio->io_error) return; @@ -1423,7 +1542,7 @@ zio_gang_tree_assemble_done(zio_t *zio) ASSERT(zio->io_data == gn->gn_gbh); ASSERT(zio->io_size == SPA_GANGBLOCKSIZE); - ASSERT(gn->gn_gbh->zg_tail.zbt_magic == ZBT_MAGIC); + ASSERT(gn->gn_gbh->zg_tail.zec_magic == ZEC_MAGIC); for (int g = 0; g < SPA_GBH_NBLKPTRS; g++) { blkptr_t *gbp = &gn->gn_gbh->zg_blkptr[g]; @@ -1450,7 +1569,7 @@ zio_gang_tree_issue(zio_t *pio, zio_gang_node_t *gn, blkptr_t *bp, void *data) zio = zio_gang_issue_func[gio->io_type](pio, bp, gn, data); if (gn != NULL) { - ASSERT(gn->gn_gbh->zg_tail.zbt_magic == ZBT_MAGIC); + ASSERT(gn->gn_gbh->zg_tail.zec_magic == ZEC_MAGIC); for (int g = 0; g < SPA_GBH_NBLKPTRS; g++) { blkptr_t *gbp = &gn->gn_gbh->zg_blkptr[g]; @@ -1519,9 +1638,9 @@ zio_write_gang_member_ready(zio_t *zio) ASSERT(BP_IS_HOLE(&zio->io_bp_orig)); ASSERT(zio->io_child_type == ZIO_CHILD_GANG); - ASSERT3U(zio->io_prop.zp_ndvas, ==, gio->io_prop.zp_ndvas); - ASSERT3U(zio->io_prop.zp_ndvas, <=, BP_GET_NDVAS(zio->io_bp)); - ASSERT3U(pio->io_prop.zp_ndvas, <=, BP_GET_NDVAS(pio->io_bp)); + ASSERT3U(zio->io_prop.zp_copies, ==, gio->io_prop.zp_copies); + ASSERT3U(zio->io_prop.zp_copies, <=, BP_GET_NDVAS(zio->io_bp)); + ASSERT3U(pio->io_prop.zp_copies, <=, BP_GET_NDVAS(pio->io_bp)); ASSERT3U(BP_GET_NDVAS(zio->io_bp), <=, BP_GET_NDVAS(pio->io_bp)); mutex_enter(&pio->io_lock); @@ -1546,13 +1665,13 @@ zio_write_gang_block(zio_t *pio) uint64_t txg = pio->io_txg; uint64_t resid = pio->io_size; uint64_t lsize; - int ndvas = gio->io_prop.zp_ndvas; - int gbh_ndvas = MIN(ndvas + 1, spa_max_replication(spa)); + int copies = gio->io_prop.zp_copies; + int gbh_copies = MIN(copies + 1, spa_max_replication(spa)); zio_prop_t zp; int error; - error = metaslab_alloc(spa, spa->spa_normal_class, SPA_GANGBLOCKSIZE, - bp, gbh_ndvas, txg, pio == gio ? NULL : gio->io_bp, + error = metaslab_alloc(spa, spa_normal_class(spa), SPA_GANGBLOCKSIZE, + bp, gbh_copies, txg, pio == gio ? NULL : gio->io_bp, METASLAB_HINTBP_FAVOR | METASLAB_GANG_HEADER); if (error) { pio->io_error = error; @@ -1588,7 +1707,9 @@ zio_write_gang_block(zio_t *pio) zp.zp_compress = ZIO_COMPRESS_OFF; zp.zp_type = DMU_OT_NONE; zp.zp_level = 0; - zp.zp_ndvas = gio->io_prop.zp_ndvas; + zp.zp_copies = gio->io_prop.zp_copies; + zp.zp_dedup = 0; + zp.zp_dedup_verify = 0; zio_nowait(zio_write(zio, spa, txg, &gbh->zg_blkptr[g], (char *)pio->io_data + (pio->io_size - resid), lsize, &zp, @@ -1609,15 +1730,383 @@ zio_write_gang_block(zio_t *pio) /* * ========================================================================== - * Allocate and free blocks + * Dedup * ========================================================================== */ +static void +zio_ddt_child_read_done(zio_t *zio) +{ + blkptr_t *bp = zio->io_bp; + ddt_entry_t *dde = zio->io_private; + ddt_phys_t *ddp; + zio_t *pio = zio_unique_parent(zio); + + mutex_enter(&pio->io_lock); + ddp = ddt_phys_select(dde, bp); + if (zio->io_error == 0) + ddt_phys_clear(ddp); /* this ddp doesn't need repair */ + if (zio->io_error == 0 && dde->dde_repair_data == NULL) + dde->dde_repair_data = zio->io_data; + else + zio_buf_free(zio->io_data, zio->io_size); + mutex_exit(&pio->io_lock); +} + +static int +zio_ddt_read_start(zio_t *zio) +{ + blkptr_t *bp = zio->io_bp; + + ASSERT(BP_GET_DEDUP(bp)); + ASSERT(BP_GET_PSIZE(bp) == zio->io_size); + ASSERT(zio->io_child_type == ZIO_CHILD_LOGICAL); + + if (zio->io_child_error[ZIO_CHILD_DDT]) { + ddt_t *ddt = ddt_select(zio->io_spa, bp); + ddt_entry_t *dde = ddt_repair_start(ddt, bp); + ddt_phys_t *ddp = dde->dde_phys; + ddt_phys_t *ddp_self = ddt_phys_select(dde, bp); + blkptr_t blk; + + ASSERT(zio->io_vsd == NULL); + zio->io_vsd = dde; + + if (ddp_self == NULL) + return (ZIO_PIPELINE_CONTINUE); + + for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { + if (ddp->ddp_phys_birth == 0 || ddp == ddp_self) + continue; + ddt_bp_create(ddt->ddt_checksum, &dde->dde_key, ddp, + &blk); + zio_nowait(zio_read(zio, zio->io_spa, &blk, + zio_buf_alloc(zio->io_size), zio->io_size, + zio_ddt_child_read_done, dde, zio->io_priority, + ZIO_DDT_CHILD_FLAGS(zio) | ZIO_FLAG_DONT_PROPAGATE, + &zio->io_bookmark)); + } + return (ZIO_PIPELINE_CONTINUE); + } + + zio_nowait(zio_read(zio, zio->io_spa, bp, + zio->io_data, zio->io_size, NULL, NULL, zio->io_priority, + ZIO_DDT_CHILD_FLAGS(zio), &zio->io_bookmark)); + + return (ZIO_PIPELINE_CONTINUE); +} + +static int +zio_ddt_read_done(zio_t *zio) +{ + blkptr_t *bp = zio->io_bp; + + if (zio_wait_for_children(zio, ZIO_CHILD_DDT, ZIO_WAIT_DONE)) + return (ZIO_PIPELINE_STOP); + + ASSERT(BP_GET_DEDUP(bp)); + ASSERT(BP_GET_PSIZE(bp) == zio->io_size); + ASSERT(zio->io_child_type == ZIO_CHILD_LOGICAL); + + if (zio->io_child_error[ZIO_CHILD_DDT]) { + ddt_t *ddt = ddt_select(zio->io_spa, bp); + ddt_entry_t *dde = zio->io_vsd; + if (ddt == NULL) { + ASSERT(spa_load_state(zio->io_spa) != SPA_LOAD_NONE); + return (ZIO_PIPELINE_CONTINUE); + } + if (dde == NULL) { + zio->io_stage = ZIO_STAGE_DDT_READ_START >> 1; + zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE, B_FALSE); + return (ZIO_PIPELINE_STOP); + } + if (dde->dde_repair_data != NULL) { + bcopy(dde->dde_repair_data, zio->io_data, zio->io_size); + zio->io_child_error[ZIO_CHILD_DDT] = 0; + } + ddt_repair_done(ddt, dde); + zio->io_vsd = NULL; + } + + ASSERT(zio->io_vsd == NULL); + + return (ZIO_PIPELINE_CONTINUE); +} + +static boolean_t +zio_ddt_collision(zio_t *zio, ddt_t *ddt, ddt_entry_t *dde) +{ + spa_t *spa = zio->io_spa; + + /* + * Note: we compare the original data, not the transformed data, + * because when zio->io_bp is an override bp, we will not have + * pushed the I/O transforms. That's an important optimization + * because otherwise we'd compress/encrypt all dmu_sync() data twice. + */ + for (int p = DDT_PHYS_SINGLE; p <= DDT_PHYS_TRIPLE; p++) { + zio_t *lio = dde->dde_lead_zio[p]; + + if (lio != NULL) { + return (lio->io_orig_size != zio->io_orig_size || + bcmp(zio->io_orig_data, lio->io_orig_data, + zio->io_orig_size) != 0); + } + } + + for (int p = DDT_PHYS_SINGLE; p <= DDT_PHYS_TRIPLE; p++) { + ddt_phys_t *ddp = &dde->dde_phys[p]; + + if (ddp->ddp_phys_birth != 0) { + arc_buf_t *abuf = NULL; + uint32_t aflags = ARC_WAIT; + blkptr_t blk = *zio->io_bp; + int error; + + ddt_bp_fill(ddp, &blk, ddp->ddp_phys_birth); + + ddt_exit(ddt); + + error = arc_read_nolock(NULL, spa, &blk, + arc_getbuf_func, &abuf, ZIO_PRIORITY_SYNC_READ, + ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE, + &aflags, &zio->io_bookmark); + + if (error == 0) { + if (arc_buf_size(abuf) != zio->io_orig_size || + bcmp(abuf->b_data, zio->io_orig_data, + zio->io_orig_size) != 0) + error = EEXIST; + VERIFY(arc_buf_remove_ref(abuf, &abuf) == 1); + } + + ddt_enter(ddt); + return (error != 0); + } + } + + return (B_FALSE); +} + +static void +zio_ddt_child_write_ready(zio_t *zio) +{ + int p = zio->io_prop.zp_copies; + ddt_t *ddt = ddt_select(zio->io_spa, zio->io_bp); + ddt_entry_t *dde = zio->io_private; + ddt_phys_t *ddp = &dde->dde_phys[p]; + zio_t *pio; + + if (zio->io_error) + return; + + ddt_enter(ddt); + + ASSERT(dde->dde_lead_zio[p] == zio); + + ddt_phys_fill(ddp, zio->io_bp); + + while ((pio = zio_walk_parents(zio)) != NULL) + ddt_bp_fill(ddp, pio->io_bp, zio->io_txg); + + ddt_exit(ddt); +} + +static void +zio_ddt_child_write_done(zio_t *zio) +{ + int p = zio->io_prop.zp_copies; + ddt_t *ddt = ddt_select(zio->io_spa, zio->io_bp); + ddt_entry_t *dde = zio->io_private; + ddt_phys_t *ddp = &dde->dde_phys[p]; + + ddt_enter(ddt); + + ASSERT(ddp->ddp_refcnt == 0); + ASSERT(dde->dde_lead_zio[p] == zio); + dde->dde_lead_zio[p] = NULL; + + if (zio->io_error == 0) { + while (zio_walk_parents(zio) != NULL) + ddt_phys_addref(ddp); + } else { + ddt_phys_clear(ddp); + } + + ddt_exit(ddt); +} + +static void +zio_ddt_ditto_write_done(zio_t *zio) +{ + int p = DDT_PHYS_DITTO; + zio_prop_t *zp = &zio->io_prop; + blkptr_t *bp = zio->io_bp; + ddt_t *ddt = ddt_select(zio->io_spa, bp); + ddt_entry_t *dde = zio->io_private; + ddt_phys_t *ddp = &dde->dde_phys[p]; + ddt_key_t *ddk = &dde->dde_key; + + ddt_enter(ddt); + + ASSERT(ddp->ddp_refcnt == 0); + ASSERT(dde->dde_lead_zio[p] == zio); + dde->dde_lead_zio[p] = NULL; + + if (zio->io_error == 0) { + ASSERT(ZIO_CHECKSUM_EQUAL(bp->blk_cksum, ddk->ddk_cksum)); + ASSERT(zp->zp_copies < SPA_DVAS_PER_BP); + ASSERT(zp->zp_copies == BP_GET_NDVAS(bp) - BP_IS_GANG(bp)); + if (ddp->ddp_phys_birth != 0) + ddt_phys_free(ddt, ddk, ddp, zio->io_txg); + ddt_phys_fill(ddp, bp); + } + + ddt_exit(ddt); +} + +static int +zio_ddt_write(zio_t *zio) +{ + spa_t *spa = zio->io_spa; + blkptr_t *bp = zio->io_bp; + uint64_t txg = zio->io_txg; + zio_prop_t *zp = &zio->io_prop; + int p = zp->zp_copies; + int ditto_copies; + zio_t *cio = NULL; + zio_t *dio = NULL; + ddt_t *ddt = ddt_select(spa, bp); + ddt_entry_t *dde; + ddt_phys_t *ddp; + + ASSERT(BP_GET_DEDUP(bp)); + ASSERT(BP_GET_CHECKSUM(bp) == zp->zp_checksum); + ASSERT(BP_IS_HOLE(bp) || zio->io_bp_override); + + ddt_enter(ddt); + dde = ddt_lookup(ddt, bp, B_TRUE); + ddp = &dde->dde_phys[p]; + + if (zp->zp_dedup_verify && zio_ddt_collision(zio, ddt, dde)) { + /* + * If we're using a weak checksum, upgrade to a strong checksum + * and try again. If we're already using a strong checksum, + * we can't resolve it, so just convert to an ordinary write. + * (And automatically e-mail a paper to Nature?) + */ + if (!zio_checksum_table[zp->zp_checksum].ci_dedup) { + zp->zp_checksum = spa_dedup_checksum(spa); + zio_pop_transforms(zio); + zio->io_stage = ZIO_STAGE_OPEN; + BP_ZERO(bp); + } else { + zp->zp_dedup = 0; + } + zio->io_pipeline = ZIO_WRITE_PIPELINE; + ddt_exit(ddt); + return (ZIO_PIPELINE_CONTINUE); + } + + ditto_copies = ddt_ditto_copies_needed(ddt, dde, ddp); + ASSERT(ditto_copies < SPA_DVAS_PER_BP); + + if (ditto_copies > ddt_ditto_copies_present(dde) && + dde->dde_lead_zio[DDT_PHYS_DITTO] == NULL) { + zio_prop_t czp = *zp; + + czp.zp_copies = ditto_copies; + + /* + * If we arrived here with an override bp, we won't have run + * the transform stack, so we won't have the data we need to + * generate a child i/o. So, toss the override bp and restart. + * This is safe, because using the override bp is just an + * optimization; and it's rare, so the cost doesn't matter. + */ + if (zio->io_bp_override) { + zio_pop_transforms(zio); + zio->io_stage = ZIO_STAGE_OPEN; + zio->io_pipeline = ZIO_WRITE_PIPELINE; + zio->io_bp_override = NULL; + BP_ZERO(bp); + ddt_exit(ddt); + return (ZIO_PIPELINE_CONTINUE); + } + + dio = zio_write(zio, spa, txg, bp, zio->io_orig_data, + zio->io_orig_size, &czp, NULL, + zio_ddt_ditto_write_done, dde, zio->io_priority, + ZIO_DDT_CHILD_FLAGS(zio), &zio->io_bookmark); + + zio_push_transform(dio, zio->io_data, zio->io_size, 0, NULL); + dde->dde_lead_zio[DDT_PHYS_DITTO] = dio; + } + + if (ddp->ddp_phys_birth != 0 || dde->dde_lead_zio[p] != NULL) { + if (ddp->ddp_phys_birth != 0) + ddt_bp_fill(ddp, bp, txg); + if (dde->dde_lead_zio[p] != NULL) + zio_add_child(zio, dde->dde_lead_zio[p]); + else + ddt_phys_addref(ddp); + } else if (zio->io_bp_override) { + ASSERT(bp->blk_birth == txg); + ASSERT(BP_EQUAL(bp, zio->io_bp_override)); + ddt_phys_fill(ddp, bp); + ddt_phys_addref(ddp); + } else { + cio = zio_write(zio, spa, txg, bp, zio->io_orig_data, + zio->io_orig_size, zp, zio_ddt_child_write_ready, + zio_ddt_child_write_done, dde, zio->io_priority, + ZIO_DDT_CHILD_FLAGS(zio), &zio->io_bookmark); + + zio_push_transform(cio, zio->io_data, zio->io_size, 0, NULL); + dde->dde_lead_zio[p] = cio; + } + + ddt_exit(ddt); + + if (cio) + zio_nowait(cio); + if (dio) + zio_nowait(dio); + + return (ZIO_PIPELINE_CONTINUE); +} + +ddt_entry_t *freedde; /* for debugging */ static int +zio_ddt_free(zio_t *zio) +{ + spa_t *spa = zio->io_spa; + blkptr_t *bp = zio->io_bp; + ddt_t *ddt = ddt_select(spa, bp); + ddt_entry_t *dde; + ddt_phys_t *ddp; + + ASSERT(BP_GET_DEDUP(bp)); + ASSERT(zio->io_child_type == ZIO_CHILD_LOGICAL); + + ddt_enter(ddt); + freedde = dde = ddt_lookup(ddt, bp, B_TRUE); + ddp = ddt_phys_select(dde, bp); + ddt_phys_decref(ddp); + ddt_exit(ddt); + + return (ZIO_PIPELINE_CONTINUE); +} + +/* + * ========================================================================== + * Allocate and free blocks + * ========================================================================== + */ +static int zio_dva_allocate(zio_t *zio) { spa_t *spa = zio->io_spa; - metaslab_class_t *mc = spa->spa_normal_class; + metaslab_class_t *mc = spa_normal_class(spa); blkptr_t *bp = zio->io_bp; int error; @@ -1628,12 +2117,12 @@ zio_dva_allocate(zio_t *zio) ASSERT(BP_IS_HOLE(bp)); ASSERT3U(BP_GET_NDVAS(bp), ==, 0); - ASSERT3U(zio->io_prop.zp_ndvas, >, 0); - ASSERT3U(zio->io_prop.zp_ndvas, <=, spa_max_replication(spa)); + ASSERT3U(zio->io_prop.zp_copies, >, 0); + ASSERT3U(zio->io_prop.zp_copies, <=, spa_max_replication(spa)); ASSERT3U(zio->io_size, ==, BP_GET_PSIZE(bp)); error = metaslab_alloc(spa, mc, zio->io_size, bp, - zio->io_prop.zp_ndvas, zio->io_txg, NULL, 0); + zio->io_prop.zp_copies, zio->io_txg, NULL, 0); if (error) { if (error == ENOSPC && zio->io_size > SPA_MINBLOCKSIZE) @@ -1672,36 +2161,11 @@ zio_dva_claim(zio_t *zio) static void zio_dva_unallocate(zio_t *zio, zio_gang_node_t *gn, blkptr_t *bp) { - spa_t *spa = zio->io_spa; - boolean_t now = !(zio->io_flags & ZIO_FLAG_IO_REWRITE); - ASSERT(bp->blk_birth == zio->io_txg || BP_IS_HOLE(bp)); - - if (zio->io_bp == bp && !now) { - /* - * This is a rewrite for sync-to-convergence. - * We can't do a metaslab_free(NOW) because bp wasn't allocated - * during this sync pass, which means that metaslab_sync() - * already committed the allocation. - */ - ASSERT(DVA_EQUAL(BP_IDENTITY(bp), - BP_IDENTITY(&zio->io_bp_orig))); - ASSERT(spa_sync_pass(spa) > 1); - - if (BP_IS_GANG(bp) && gn == NULL) { - /* - * This is a gang leader whose gang header(s) we - * couldn't read now, so defer the free until later. - * The block should still be intact because without - * the headers, we'd never even start the rewrite. - */ - bplist_enqueue_deferred(&spa->spa_sync_bplist, bp); - return; - } - } + ASSERT(zio->io_bp_override == NULL); if (!BP_IS_HOLE(bp)) - metaslab_free(spa, bp, bp->blk_birth, now); + metaslab_free(zio->io_spa, bp, bp->blk_birth, B_TRUE); if (gn != NULL) { for (int g = 0; g < SPA_GBH_NBLKPTRS; g++) { @@ -1715,25 +2179,31 @@ zio_dva_unallocate(zio_t *zio, zio_gang_node_t *gn, blkptr_t *bp) * Try to allocate an intent log block. Return 0 on success, errno on failure. */ int -zio_alloc_blk(spa_t *spa, uint64_t size, blkptr_t *new_bp, blkptr_t *old_bp, - uint64_t txg) +zio_alloc_zil(spa_t *spa, uint64_t txg, blkptr_t *new_bp, blkptr_t *old_bp, + uint64_t size, boolean_t use_slog) { - int error; + int error = 1; - error = metaslab_alloc(spa, spa->spa_log_class, size, - new_bp, 1, txg, old_bp, METASLAB_HINTBP_AVOID); + ASSERT(txg > spa_syncing_txg(spa)); + + if (use_slog) + error = metaslab_alloc(spa, spa_log_class(spa), size, + new_bp, 1, txg, old_bp, METASLAB_HINTBP_AVOID); if (error) - error = metaslab_alloc(spa, spa->spa_normal_class, size, + error = metaslab_alloc(spa, spa_normal_class(spa), size, new_bp, 1, txg, old_bp, METASLAB_HINTBP_AVOID); if (error == 0) { BP_SET_LSIZE(new_bp, size); BP_SET_PSIZE(new_bp, size); BP_SET_COMPRESS(new_bp, ZIO_COMPRESS_OFF); - BP_SET_CHECKSUM(new_bp, ZIO_CHECKSUM_ZILOG); + BP_SET_CHECKSUM(new_bp, + spa_version(spa) >= SPA_VERSION_SLIM_ZIL + ? ZIO_CHECKSUM_ZILOG2 : ZIO_CHECKSUM_ZILOG); BP_SET_TYPE(new_bp, DMU_OT_INTENT_LOG); BP_SET_LEVEL(new_bp, 0); + BP_SET_DEDUP(new_bp, 0); BP_SET_BYTEORDER(new_bp, ZFS_HOST_BYTEORDER); } @@ -1741,15 +2211,15 @@ zio_alloc_blk(spa_t *spa, uint64_t size, blkptr_t *new_bp, blkptr_t *old_bp, } /* - * Free an intent log block. We know it can't be a gang block, so there's - * nothing to do except metaslab_free() it. + * Free an intent log block. */ void -zio_free_blk(spa_t *spa, blkptr_t *bp, uint64_t txg) +zio_free_zil(spa_t *spa, uint64_t txg, blkptr_t *bp) { + ASSERT(BP_GET_TYPE(bp) == DMU_OT_INTENT_LOG); ASSERT(!BP_IS_GANG(bp)); - metaslab_free(spa, bp, txg, B_FALSE); + zio_free(spa, txg, bp); } /* @@ -1878,6 +2348,32 @@ zio_vdev_io_done(zio_t *zio) return (ZIO_PIPELINE_CONTINUE); } +/* + * For non-raidz ZIOs, we can just copy aside the bad data read from the + * disk, and use that to finish the checksum ereport later. + */ +static void +zio_vsd_default_cksum_finish(zio_cksum_report_t *zcr, + const void *good_buf) +{ + /* no processing needed */ + zfs_ereport_finish_checksum(zcr, good_buf, zcr->zcr_cbdata, B_FALSE); +} + +/*ARGSUSED*/ +void +zio_vsd_default_cksum_report(zio_t *zio, zio_cksum_report_t *zcr, void *ignored) +{ + void *buf = zio_buf_alloc(zio->io_size); + + bcopy(zio->io_data, buf, zio->io_size); + + zcr->zcr_cbinfo = zio->io_size; + zcr->zcr_cbdata = buf; + zcr->zcr_finish = zio_vsd_default_cksum_finish; + zcr->zcr_free = zio_buf_free; +} + static int zio_vdev_io_assess(zio_t *zio) { @@ -1890,7 +2386,7 @@ zio_vdev_io_assess(zio_t *zio) spa_config_exit(zio->io_spa, SCL_ZIO, zio); if (zio->io_vsd != NULL) { - zio->io_vsd_free(zio); + zio->io_vsd_ops->vsd_free(zio); zio->io_vsd = NULL; } @@ -1899,6 +2395,9 @@ zio_vdev_io_assess(zio_t *zio) /* * If the I/O failed, determine whether we should attempt to retry it. + * + * On retry, we cut in line in the issue queue, since we don't want + * compression/checksumming/etc. work to prevent our (cheap) IO reissue. */ if (zio->io_error && vd == NULL && !(zio->io_flags & (ZIO_FLAG_DONT_RETRY | ZIO_FLAG_IO_RETRY))) { @@ -1907,8 +2406,9 @@ zio_vdev_io_assess(zio_t *zio) zio->io_error = 0; zio->io_flags |= ZIO_FLAG_IO_RETRY | ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_AGGREGATE; - zio->io_stage = ZIO_STAGE_VDEV_IO_START - 1; - zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE); + zio->io_stage = ZIO_STAGE_VDEV_IO_START >> 1; + zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE, + zio_requeue_io_start_cut_in_line); return (ZIO_PIPELINE_STOP); } @@ -1940,7 +2440,7 @@ zio_vdev_io_reissue(zio_t *zio) ASSERT(zio->io_stage == ZIO_STAGE_VDEV_IO_START); ASSERT(zio->io_error == 0); - zio->io_stage--; + zio->io_stage >>= 1; } void @@ -1948,7 +2448,7 @@ zio_vdev_io_redone(zio_t *zio) { ASSERT(zio->io_stage == ZIO_STAGE_VDEV_IO_DONE); - zio->io_stage--; + zio->io_stage >>= 1; } void @@ -1958,7 +2458,7 @@ zio_vdev_io_bypass(zio_t *zio) ASSERT(zio->io_error == 0); zio->io_flags |= ZIO_FLAG_IO_BYPASS; - zio->io_stage = ZIO_STAGE_VDEV_IO_ASSESS - 1; + zio->io_stage = ZIO_STAGE_VDEV_IO_ASSESS >> 1; } /* @@ -2000,9 +2500,12 @@ zio_checksum_generate(zio_t *zio) static int zio_checksum_verify(zio_t *zio) { + zio_bad_cksum_t info; blkptr_t *bp = zio->io_bp; int error; + ASSERT(zio->io_vd != NULL); + if (bp == NULL) { /* * This is zio_read_phys(). @@ -2014,11 +2517,12 @@ zio_checksum_verify(zio_t *zio) ASSERT(zio->io_prop.zp_checksum == ZIO_CHECKSUM_LABEL); } - if ((error = zio_checksum_error(zio)) != 0) { + if ((error = zio_checksum_error(zio, &info)) != 0) { zio->io_error = error; if (!(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { - zfs_ereport_post(FM_EREPORT_ZFS_CHECKSUM, - zio->io_spa, zio->io_vd, zio, 0, 0); + zfs_ereport_start_checksum(zio->io_spa, + zio->io_vd, zio, zio->io_offset, + zio->io_size, NULL, &info); } } @@ -2031,7 +2535,7 @@ zio_checksum_verify(zio_t *zio) void zio_checksum_verified(zio_t *zio) { - zio->io_pipeline &= ~(1U << ZIO_STAGE_CHECKSUM_VERIFY); + zio->io_pipeline &= ~ZIO_STAGE_CHECKSUM_VERIFY; } /* @@ -2071,7 +2575,8 @@ zio_ready(zio_t *zio) blkptr_t *bp = zio->io_bp; zio_t *pio, *pio_next; - if (zio_wait_for_children(zio, ZIO_CHILD_GANG, ZIO_WAIT_READY)) + if (zio_wait_for_children(zio, ZIO_CHILD_GANG, ZIO_WAIT_READY) || + zio_wait_for_children(zio, ZIO_CHILD_DDT, ZIO_WAIT_READY)) return (ZIO_PIPELINE_STOP); if (zio->io_ready) { @@ -2105,6 +2610,19 @@ zio_ready(zio_t *zio) zio_notify_parent(pio, zio, ZIO_WAIT_READY); } + if (zio->io_flags & ZIO_FLAG_NODATA) { + if (BP_IS_GANG(bp)) { + zio->io_flags &= ~ZIO_FLAG_NODATA; + } else { + ASSERT((uintptr_t)zio->io_data < SPA_MAXBLOCKSIZE); + zio->io_pipeline &= ~ZIO_VDEV_IO_STAGES; + } + } + + if (zio_injection_enabled && + zio->io_spa->spa_syncing_txg == zio->io_txg) + zio_handle_ignored_writes(zio); + return (ZIO_PIPELINE_CONTINUE); } @@ -2124,6 +2642,7 @@ zio_done(zio_t *zio) */ if (zio_wait_for_children(zio, ZIO_CHILD_VDEV, ZIO_WAIT_DONE) || zio_wait_for_children(zio, ZIO_CHILD_GANG, ZIO_WAIT_DONE) || + zio_wait_for_children(zio, ZIO_CHILD_DDT, ZIO_WAIT_DONE) || zio_wait_for_children(zio, ZIO_CHILD_LOGICAL, ZIO_WAIT_DONE)) return (ZIO_PIPELINE_STOP); @@ -2134,23 +2653,51 @@ zio_done(zio_t *zio) if (bp != NULL) { ASSERT(bp->blk_pad[0] == 0); ASSERT(bp->blk_pad[1] == 0); - ASSERT(bp->blk_pad[2] == 0); ASSERT(bcmp(bp, &zio->io_bp_copy, sizeof (blkptr_t)) == 0 || (bp == zio_unique_parent(zio)->io_bp)); if (zio->io_type == ZIO_TYPE_WRITE && !BP_IS_HOLE(bp) && + zio->io_bp_override == NULL && !(zio->io_flags & ZIO_FLAG_IO_REPAIR)) { ASSERT(!BP_SHOULD_BYTESWAP(bp)); - ASSERT3U(zio->io_prop.zp_ndvas, <=, BP_GET_NDVAS(bp)); + ASSERT3U(zio->io_prop.zp_copies, <=, BP_GET_NDVAS(bp)); ASSERT(BP_COUNT_GANG(bp) == 0 || (BP_COUNT_GANG(bp) == BP_GET_NDVAS(bp))); } } /* - * If there were child vdev or gang errors, they apply to us now. + * If there were child vdev/gang/ddt errors, they apply to us now. */ zio_inherit_child_errors(zio, ZIO_CHILD_VDEV); zio_inherit_child_errors(zio, ZIO_CHILD_GANG); + zio_inherit_child_errors(zio, ZIO_CHILD_DDT); + + /* + * If the I/O on the transformed data was successful, generate any + * checksum reports now while we still have the transformed data. + */ + if (zio->io_error == 0) { + while (zio->io_cksum_report != NULL) { + zio_cksum_report_t *zcr = zio->io_cksum_report; + uint64_t align = zcr->zcr_align; + uint64_t asize = P2ROUNDUP(psize, align); + char *abuf = zio->io_data; + + if (asize != psize) { + abuf = zio_buf_alloc(asize); + bcopy(zio->io_data, abuf, psize); + bzero(abuf + psize, asize - psize); + } + + zio->io_cksum_report = zcr->zcr_next; + zcr->zcr_next = NULL; + zcr->zcr_finish(zcr, abuf); + zfs_ereport_free_checksum(zcr); + + if (asize != psize) + zio_buf_free(abuf, asize); + } + } zio_pop_transforms(zio); /* note: may set zio->io_error */ @@ -2166,8 +2713,9 @@ zio_done(zio_t *zio) if (zio->io_error != ECKSUM && vd != NULL && !vdev_is_dead(vd)) zfs_ereport_post(FM_EREPORT_ZFS_IO, spa, vd, zio, 0, 0); - if ((zio->io_error == EIO || - !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) && zio == lio) { + if ((zio->io_error == EIO || !(zio->io_flags & + (ZIO_FLAG_SPECULATIVE | ZIO_FLAG_DONT_PROPAGATE))) && + zio == lio) { /* * For logical I/O requests, tell the SPA to log the * error and generate a logical data ereport. @@ -2184,22 +2732,33 @@ zio_done(zio_t *zio) * propagate all the way to the root via zio_notify_parent(). */ ASSERT(vd == NULL && bp != NULL); + ASSERT(zio->io_child_type == ZIO_CHILD_LOGICAL); - if (IO_IS_ALLOCATING(zio)) + if (IO_IS_ALLOCATING(zio) && + !(zio->io_flags & ZIO_FLAG_CANFAIL)) { if (zio->io_error != ENOSPC) zio->io_reexecute |= ZIO_REEXECUTE_NOW; else zio->io_reexecute |= ZIO_REEXECUTE_SUSPEND; + } if ((zio->io_type == ZIO_TYPE_READ || zio->io_type == ZIO_TYPE_FREE) && zio->io_error == ENXIO && - spa->spa_load_state == SPA_LOAD_NONE && + spa_load_state(spa) == SPA_LOAD_NONE && spa_get_failmode(spa) != ZIO_FAILURE_MODE_CONTINUE) zio->io_reexecute |= ZIO_REEXECUTE_SUSPEND; if (!(zio->io_flags & ZIO_FLAG_CANFAIL) && !zio->io_reexecute) zio->io_reexecute |= ZIO_REEXECUTE_SUSPEND; + + /* + * Here is a possibly good place to attempt to do + * either combinatorial reconstruction or error correction + * based on checksums. It also might be a good place + * to send out preliminary ereports before we suspend + * processing. + */ } /* @@ -2210,11 +2769,10 @@ zio_done(zio_t *zio) */ zio_inherit_child_errors(zio, ZIO_CHILD_LOGICAL); - if ((zio->io_error || zio->io_reexecute) && IO_IS_ALLOCATING(zio) && - zio->io_child_type == ZIO_CHILD_LOGICAL) { - ASSERT(zio->io_child_type != ZIO_CHILD_GANG); + if ((zio->io_error || zio->io_reexecute) && + IO_IS_ALLOCATING(zio) && zio->io_gang_leader == zio && + !(zio->io_flags & ZIO_FLAG_IO_REWRITE)) zio_dva_unallocate(zio, zio->io_gang_tree, bp); - } zio_gang_tree_free(&zio->io_gang_tree); @@ -2292,11 +2850,22 @@ zio_done(zio_t *zio) return (ZIO_PIPELINE_STOP); } - ASSERT(zio_walk_children(zio) == NULL); + ASSERT(zio->io_child_count == 0); ASSERT(zio->io_reexecute == 0); ASSERT(zio->io_error == 0 || (zio->io_flags & ZIO_FLAG_CANFAIL)); /* + * Report any checksum errors, since the I/O is complete. + */ + while (zio->io_cksum_report != NULL) { + zio_cksum_report_t *zcr = zio->io_cksum_report; + zio->io_cksum_report = zcr->zcr_next; + zcr->zcr_next = NULL; + zcr->zcr_finish(zcr, NULL); + zfs_ereport_free_checksum(zcr); + } + + /* * It is the responsibility of the done callback to ensure that this * particular zio is no longer discoverable for adoption, and as * such, cannot acquire any new parents. @@ -2332,12 +2901,17 @@ zio_done(zio_t *zio) * I/O pipeline definition * ========================================================================== */ -static zio_pipe_stage_t *zio_pipeline[ZIO_STAGES] = { +static zio_pipe_stage_t *zio_pipeline[] = { NULL, - zio_issue_async, zio_read_bp_init, + zio_free_bp_init, + zio_issue_async, zio_write_bp_init, zio_checksum_generate, + zio_ddt_read_start, + zio_ddt_read_done, + zio_ddt_write, + zio_ddt_free, zio_gang_assemble, zio_gang_issue, zio_dva_allocate, diff --git a/module/zfs/zio_checksum.c b/module/zfs/zio_checksum.c index bf7fe733f..c8fe20f2e 100644 --- a/module/zfs/zio_checksum.c +++ b/module/zfs/zio_checksum.c @@ -19,14 +19,15 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #include <sys/zfs_context.h> #include <sys/spa.h> #include <sys/zio.h> #include <sys/zio_checksum.h> +#include <sys/zil.h> +#include <zfs_fletcher.h> /* * Checksum vectors. @@ -49,13 +50,13 @@ * we want the ability to take advantage of that hardware. * * Of course, we don't want a checksum upgrade to invalidate existing - * data, so we store the checksum *function* in five bits of the DVA. - * This gives us room for up to 32 different checksum functions. + * data, so we store the checksum *function* in eight bits of the bp. + * This gives us room for up to 256 different checksum functions. * * When writing a block, we always checksum it with the latest-and-greatest * checksum function of the appropriate strength. When reading a block, * we compare the expected checksum against the actual checksum, which we - * compute via the checksum function specified in the DVA encoding. + * compute via the checksum function specified by BP_GET_CHECKSUM(bp). */ /*ARGSUSED*/ @@ -66,19 +67,20 @@ zio_checksum_off(const void *buf, uint64_t size, zio_cksum_t *zcp) } zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS] = { - {{NULL, NULL}, 0, 0, "inherit"}, - {{NULL, NULL}, 0, 0, "on"}, - {{zio_checksum_off, zio_checksum_off}, 0, 0, "off"}, - {{zio_checksum_SHA256, zio_checksum_SHA256}, 1, 1, "label"}, - {{zio_checksum_SHA256, zio_checksum_SHA256}, 1, 1, "gang_header"}, - {{fletcher_2_native, fletcher_2_byteswap}, 0, 1, "zilog"}, - {{fletcher_2_native, fletcher_2_byteswap}, 0, 0, "fletcher2"}, - {{fletcher_4_native, fletcher_4_byteswap}, 1, 0, "fletcher4"}, - {{zio_checksum_SHA256, zio_checksum_SHA256}, 1, 0, "SHA256"}, + {{NULL, NULL}, 0, 0, 0, "inherit"}, + {{NULL, NULL}, 0, 0, 0, "on"}, + {{zio_checksum_off, zio_checksum_off}, 0, 0, 0, "off"}, + {{zio_checksum_SHA256, zio_checksum_SHA256}, 1, 1, 0, "label"}, + {{zio_checksum_SHA256, zio_checksum_SHA256}, 1, 1, 0, "gang_header"}, + {{fletcher_2_native, fletcher_2_byteswap}, 0, 1, 0, "zilog"}, + {{fletcher_2_native, fletcher_2_byteswap}, 0, 0, 0, "fletcher2"}, + {{fletcher_4_native, fletcher_4_byteswap}, 1, 0, 0, "fletcher4"}, + {{zio_checksum_SHA256, zio_checksum_SHA256}, 1, 0, 1, "sha256"}, + {{fletcher_4_native, fletcher_4_byteswap}, 0, 1, 0, "zilog2"}, }; -uint8_t -zio_checksum_select(uint8_t child, uint8_t parent) +enum zio_checksum +zio_checksum_select(enum zio_checksum child, enum zio_checksum parent) { ASSERT(child < ZIO_CHECKSUM_FUNCTIONS); ASSERT(parent < ZIO_CHECKSUM_FUNCTIONS); @@ -93,6 +95,29 @@ zio_checksum_select(uint8_t child, uint8_t parent) return (child); } +enum zio_checksum +zio_checksum_dedup_select(spa_t *spa, enum zio_checksum child, + enum zio_checksum parent) +{ + ASSERT((child & ZIO_CHECKSUM_MASK) < ZIO_CHECKSUM_FUNCTIONS); + ASSERT((parent & ZIO_CHECKSUM_MASK) < ZIO_CHECKSUM_FUNCTIONS); + ASSERT(parent != ZIO_CHECKSUM_INHERIT && parent != ZIO_CHECKSUM_ON); + + if (child == ZIO_CHECKSUM_INHERIT) + return (parent); + + if (child == ZIO_CHECKSUM_ON) + return (spa_dedup_checksum(spa)); + + if (child == (ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY)) + return (spa_dedup_checksum(spa) | ZIO_CHECKSUM_VERIFY); + + ASSERT(zio_checksum_table[child & ZIO_CHECKSUM_MASK].ci_dedup || + (child & ZIO_CHECKSUM_VERIFY) || child == ZIO_CHECKSUM_OFF); + + return (child); +} + /* * Set the external verifier for a gang block based on <vdev, offset, txg>, * a tuple which is guaranteed to be unique for the life of the pool. @@ -101,7 +126,7 @@ static void zio_checksum_gang_verifier(zio_cksum_t *zcp, blkptr_t *bp) { dva_t *dva = BP_IDENTITY(bp); - uint64_t txg = bp->blk_birth; + uint64_t txg = BP_PHYSICAL_BIRTH(bp); ASSERT(BP_IS_GANG(bp)); @@ -128,47 +153,79 @@ zio_checksum_compute(zio_t *zio, enum zio_checksum checksum, { blkptr_t *bp = zio->io_bp; uint64_t offset = zio->io_offset; - zio_block_tail_t *zbt = (zio_block_tail_t *)((char *)data + size) - 1; zio_checksum_info_t *ci = &zio_checksum_table[checksum]; - zio_cksum_t zbt_cksum; + zio_cksum_t cksum; ASSERT((uint_t)checksum < ZIO_CHECKSUM_FUNCTIONS); ASSERT(ci->ci_func[0] != NULL); - if (ci->ci_zbt) { + if (ci->ci_eck) { + zio_eck_t *eck; + + if (checksum == ZIO_CHECKSUM_ZILOG2) { + zil_chain_t *zilc = data; + + size = P2ROUNDUP_TYPED(zilc->zc_nused, ZIL_MIN_BLKSZ, + uint64_t); + eck = &zilc->zc_eck; + } else { + eck = (zio_eck_t *)((char *)data + size) - 1; + } if (checksum == ZIO_CHECKSUM_GANG_HEADER) - zio_checksum_gang_verifier(&zbt->zbt_cksum, bp); + zio_checksum_gang_verifier(&eck->zec_cksum, bp); else if (checksum == ZIO_CHECKSUM_LABEL) - zio_checksum_label_verifier(&zbt->zbt_cksum, offset); + zio_checksum_label_verifier(&eck->zec_cksum, offset); else - bp->blk_cksum = zbt->zbt_cksum; - zbt->zbt_magic = ZBT_MAGIC; - ci->ci_func[0](data, size, &zbt_cksum); - zbt->zbt_cksum = zbt_cksum; + bp->blk_cksum = eck->zec_cksum; + eck->zec_magic = ZEC_MAGIC; + ci->ci_func[0](data, size, &cksum); + eck->zec_cksum = cksum; } else { ci->ci_func[0](data, size, &bp->blk_cksum); } } int -zio_checksum_error(zio_t *zio) +zio_checksum_error(zio_t *zio, zio_bad_cksum_t *info) { blkptr_t *bp = zio->io_bp; uint_t checksum = (bp == NULL ? zio->io_prop.zp_checksum : (BP_IS_GANG(bp) ? ZIO_CHECKSUM_GANG_HEADER : BP_GET_CHECKSUM(bp))); int byteswap; - void *data = zio->io_data; + int error; uint64_t size = (bp == NULL ? zio->io_size : (BP_IS_GANG(bp) ? SPA_GANGBLOCKSIZE : BP_GET_PSIZE(bp))); uint64_t offset = zio->io_offset; - zio_block_tail_t *zbt = (zio_block_tail_t *)((char *)data + size) - 1; + void *data = zio->io_data; zio_checksum_info_t *ci = &zio_checksum_table[checksum]; zio_cksum_t actual_cksum, expected_cksum, verifier; if (checksum >= ZIO_CHECKSUM_FUNCTIONS || ci->ci_func[0] == NULL) return (EINVAL); - if (ci->ci_zbt) { + if (ci->ci_eck) { + zio_eck_t *eck; + + if (checksum == ZIO_CHECKSUM_ZILOG2) { + zil_chain_t *zilc = data; + uint64_t nused; + + eck = &zilc->zc_eck; + if (eck->zec_magic == ZEC_MAGIC) + nused = zilc->zc_nused; + else if (eck->zec_magic == BSWAP_64(ZEC_MAGIC)) + nused = BSWAP_64(zilc->zc_nused); + else + return (ECKSUM); + + if (nused > size) + return (ECKSUM); + + size = P2ROUNDUP_TYPED(nused, ZIL_MIN_BLKSZ, uint64_t); + } else { + eck = (zio_eck_t *)((char *)data + size) - 1; + } + if (checksum == ZIO_CHECKSUM_GANG_HEADER) zio_checksum_gang_verifier(&verifier, bp); else if (checksum == ZIO_CHECKSUM_LABEL) @@ -176,15 +233,15 @@ zio_checksum_error(zio_t *zio) else verifier = bp->blk_cksum; - byteswap = (zbt->zbt_magic == BSWAP_64(ZBT_MAGIC)); + byteswap = (eck->zec_magic == BSWAP_64(ZEC_MAGIC)); if (byteswap) byteswap_uint64_array(&verifier, sizeof (zio_cksum_t)); - expected_cksum = zbt->zbt_cksum; - zbt->zbt_cksum = verifier; + expected_cksum = eck->zec_cksum; + eck->zec_cksum = verifier; ci->ci_func[byteswap](data, size, &actual_cksum); - zbt->zbt_cksum = expected_cksum; + eck->zec_cksum = expected_cksum; if (byteswap) byteswap_uint64_array(&expected_cksum, @@ -196,11 +253,22 @@ zio_checksum_error(zio_t *zio) ci->ci_func[byteswap](data, size, &actual_cksum); } + info->zbc_expected = expected_cksum; + info->zbc_actual = actual_cksum; + info->zbc_checksum_name = ci->ci_name; + info->zbc_byteswapped = byteswap; + info->zbc_injected = 0; + info->zbc_has_cksum = 1; + if (!ZIO_CHECKSUM_EQUAL(actual_cksum, expected_cksum)) return (ECKSUM); - if (zio_injection_enabled && !zio->io_error) - return (zio_handle_fault_injection(zio, ECKSUM)); + if (zio_injection_enabled && !zio->io_error && + (error = zio_handle_fault_injection(zio, ECKSUM)) != 0) { + + info->zbc_injected = 1; + return (error); + } return (0); } diff --git a/module/zfs/zio_compress.c b/module/zfs/zio_compress.c index c563be4eb..f148977c4 100644 --- a/module/zfs/zio_compress.c +++ b/module/zfs/zio_compress.c @@ -20,12 +20,10 @@ */ /* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/zfs_context.h> #include <sys/compress.h> #include <sys/spa.h> @@ -51,10 +49,11 @@ zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS] = { {gzip_compress, gzip_decompress, 7, "gzip-7"}, {gzip_compress, gzip_decompress, 8, "gzip-8"}, {gzip_compress, gzip_decompress, 9, "gzip-9"}, + {zle_compress, zle_decompress, 64, "zle"}, }; -uint8_t -zio_compress_select(uint8_t child, uint8_t parent) +enum zio_compress +zio_compress_select(enum zio_compress child, enum zio_compress parent) { ASSERT(child < ZIO_COMPRESS_FUNCTIONS); ASSERT(parent < ZIO_COMPRESS_FUNCTIONS); @@ -69,80 +68,65 @@ zio_compress_select(uint8_t child, uint8_t parent) return (child); } -int -zio_compress_data(int cpfunc, void *src, uint64_t srcsize, void **destp, - uint64_t *destsizep, uint64_t *destbufsizep) +size_t +zio_compress_data(enum zio_compress c, void *src, void *dst, size_t s_len) { uint64_t *word, *word_end; - uint64_t ciosize, gapsize, destbufsize; - zio_compress_info_t *ci = &zio_compress_table[cpfunc]; - char *dest; - uint_t allzero; + size_t c_len, d_len, r_len; + zio_compress_info_t *ci = &zio_compress_table[c]; - ASSERT((uint_t)cpfunc < ZIO_COMPRESS_FUNCTIONS); - ASSERT((uint_t)cpfunc == ZIO_COMPRESS_EMPTY || ci->ci_compress != NULL); + ASSERT((uint_t)c < ZIO_COMPRESS_FUNCTIONS); + ASSERT((uint_t)c == ZIO_COMPRESS_EMPTY || ci->ci_compress != NULL); /* * If the data is all zeroes, we don't even need to allocate - * a block for it. We indicate this by setting *destsizep = 0. + * a block for it. We indicate this by returning zero size. */ - allzero = 1; - word = src; - word_end = (uint64_t *)(uintptr_t)((uintptr_t)word + srcsize); - while (word < word_end) { - if (*word++ != 0) { - allzero = 0; + word_end = (uint64_t *)((char *)src + s_len); + for (word = src; word < word_end; word++) + if (*word != 0) break; - } - } - if (allzero) { - *destp = NULL; - *destsizep = 0; - *destbufsizep = 0; - return (1); - } - if (cpfunc == ZIO_COMPRESS_EMPTY) + if (word == word_end) return (0); + if (c == ZIO_COMPRESS_EMPTY) + return (s_len); + /* Compress at least 12.5% */ - destbufsize = P2ALIGN(srcsize - (srcsize >> 3), SPA_MINBLOCKSIZE); - if (destbufsize == 0) - return (0); - dest = zio_buf_alloc(destbufsize); + d_len = P2ALIGN(s_len - (s_len >> 3), (size_t)SPA_MINBLOCKSIZE); + if (d_len == 0) + return (s_len); - ciosize = ci->ci_compress(src, dest, (size_t)srcsize, - (size_t)destbufsize, ci->ci_level); - if (ciosize > destbufsize) { - zio_buf_free(dest, destbufsize); - return (0); - } + c_len = ci->ci_compress(src, dst, s_len, d_len, ci->ci_level); - /* Cool. We compressed at least as much as we were hoping to. */ + if (c_len > d_len) + return (s_len); - /* For security, make sure we don't write random heap crap to disk */ - gapsize = P2ROUNDUP(ciosize, SPA_MINBLOCKSIZE) - ciosize; - if (gapsize != 0) { - bzero(dest + ciosize, gapsize); - ciosize += gapsize; + /* + * Cool. We compressed at least as much as we were hoping to. + * For both security and repeatability, pad out the last sector. + */ + r_len = P2ROUNDUP(c_len, (size_t)SPA_MINBLOCKSIZE); + if (r_len > c_len) { + bzero((char *)dst + c_len, r_len - c_len); + c_len = r_len; } - ASSERT3U(ciosize, <=, destbufsize); - ASSERT(P2PHASE(ciosize, SPA_MINBLOCKSIZE) == 0); - *destp = dest; - *destsizep = ciosize; - *destbufsizep = destbufsize; + ASSERT3U(c_len, <=, d_len); + ASSERT(P2PHASE(c_len, (size_t)SPA_MINBLOCKSIZE) == 0); - return (1); + return (c_len); } int -zio_decompress_data(int cpfunc, void *src, uint64_t srcsize, - void *dest, uint64_t destsize) +zio_decompress_data(enum zio_compress c, void *src, void *dst, + size_t s_len, size_t d_len) { - zio_compress_info_t *ci = &zio_compress_table[cpfunc]; + zio_compress_info_t *ci = &zio_compress_table[c]; - ASSERT((uint_t)cpfunc < ZIO_COMPRESS_FUNCTIONS); + if ((uint_t)c >= ZIO_COMPRESS_FUNCTIONS || ci->ci_decompress == NULL) + return (EINVAL); - return (ci->ci_decompress(src, dest, srcsize, destsize, ci->ci_level)); + return (ci->ci_decompress(src, dst, s_len, d_len, ci->ci_level)); } diff --git a/module/zfs/zio_inject.c b/module/zfs/zio_inject.c index f8e6880c9..16eaed668 100644 --- a/module/zfs/zio_inject.c +++ b/module/zfs/zio_inject.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* @@ -43,8 +42,8 @@ #include <sys/arc.h> #include <sys/zio_impl.h> #include <sys/zfs_ioctl.h> -#include <sys/spa_impl.h> #include <sys/vdev_impl.h> +#include <sys/dmu_objset.h> #include <sys/fs/zfs.h> uint32_t zio_injection_enabled; @@ -70,8 +69,9 @@ zio_match_handler(zbookmark_t *zb, uint64_t type, /* * Check for a match against the MOS, which is based on type */ - if (zb->zb_objset == 0 && record->zi_objset == 0 && - record->zi_object == 0) { + if (zb->zb_objset == DMU_META_OBJSET && + record->zi_objset == DMU_META_OBJSET && + record->zi_object == DMU_META_DNODE_OBJECT) { if (record->zi_type == DMU_OT_NONE || type == record->zi_type) return (record->zi_freq == 0 || @@ -96,6 +96,31 @@ zio_match_handler(zbookmark_t *zb, uint64_t type, } /* + * Panic the system when a config change happens in the function + * specified by tag. + */ +void +zio_handle_panic_injection(spa_t *spa, char *tag, uint64_t type) +{ + inject_handler_t *handler; + + rw_enter(&inject_lock, RW_READER); + + for (handler = list_head(&inject_handlers); handler != NULL; + handler = list_next(&inject_handlers, handler)) { + + if (spa != handler->zi_spa) + continue; + + if (handler->zi_record.zi_type == type && + strcmp(tag, handler->zi_record.zi_func) == 0) + panic("Panic requested in function %s\n", tag); + } + + rw_exit(&inject_lock); +} + +/* * Determine if the I/O in question should return failure. Returns the errno * to be returned to the caller. */ @@ -126,8 +151,10 @@ zio_handle_fault_injection(zio_t *zio, int error) if (zio->io_spa != handler->zi_spa) continue; - /* Ignore device errors */ - if (handler->zi_record.zi_guid != 0) + /* Ignore device errors and panic injection */ + if (handler->zi_record.zi_guid != 0 || + handler->zi_record.zi_func[0] != '\0' || + handler->zi_record.zi_duration != 0) continue; /* If this handler matches, return EIO */ @@ -159,7 +186,7 @@ zio_handle_label_injection(zio_t *zio, int error) int label; int ret = 0; - if (offset + zio->io_size > VDEV_LABEL_START_SIZE && + if (offset >= VDEV_LABEL_START_SIZE && offset < vd->vdev_psize - VDEV_LABEL_END_SIZE) return (0); @@ -170,8 +197,10 @@ zio_handle_label_injection(zio_t *zio, int error) uint64_t start = handler->zi_record.zi_start; uint64_t end = handler->zi_record.zi_end; - /* Ignore device only faults */ - if (handler->zi_record.zi_start == 0) + /* Ignore device only faults or panic injection */ + if (handler->zi_record.zi_start == 0 || + handler->zi_record.zi_func[0] != '\0' || + handler->zi_record.zi_duration != 0) continue; /* @@ -200,13 +229,30 @@ zio_handle_device_injection(vdev_t *vd, zio_t *zio, int error) inject_handler_t *handler; int ret = 0; + /* + * We skip over faults in the labels unless it's during + * device open (i.e. zio == NULL). + */ + if (zio != NULL) { + uint64_t offset = zio->io_offset; + + if (offset < VDEV_LABEL_START_SIZE || + offset >= vd->vdev_psize - VDEV_LABEL_END_SIZE) + return (0); + } + rw_enter(&inject_lock, RW_READER); for (handler = list_head(&inject_handlers); handler != NULL; handler = list_next(&inject_handlers, handler)) { - /* Ignore label specific faults */ - if (handler->zi_record.zi_start != 0) + /* + * Ignore label specific faults, panic injection + * or fake writes + */ + if (handler->zi_record.zi_start != 0 || + handler->zi_record.zi_func[0] != '\0' || + handler->zi_record.zi_duration != 0) continue; if (vd->vdev_guid == handler->zi_record.zi_guid) { @@ -216,6 +262,12 @@ zio_handle_device_injection(vdev_t *vd, zio_t *zio, int error) continue; } + /* Handle type specific I/O failures */ + if (zio != NULL && + handler->zi_record.zi_iotype != ZIO_TYPES && + handler->zi_record.zi_iotype != zio->io_type) + continue; + if (handler->zi_record.zi_error == error) { /* * For a failed open, pretend like the device @@ -224,6 +276,16 @@ zio_handle_device_injection(vdev_t *vd, zio_t *zio, int error) if (error == ENXIO) vd->vdev_stat.vs_aux = VDEV_AUX_OPEN_FAILED; + + /* + * Treat these errors as if they had been + * retried so that all the appropriate stats + * and FMA events are generated. + */ + if (!handler->zi_record.zi_failfast && + zio != NULL) + zio->io_flags |= ZIO_FLAG_IO_RETRY; + ret = error; break; } @@ -240,6 +302,84 @@ zio_handle_device_injection(vdev_t *vd, zio_t *zio, int error) } /* + * Simulate hardware that ignores cache flushes. For requested number + * of seconds nix the actual writing to disk. + */ +void +zio_handle_ignored_writes(zio_t *zio) +{ + inject_handler_t *handler; + + rw_enter(&inject_lock, RW_READER); + + for (handler = list_head(&inject_handlers); handler != NULL; + handler = list_next(&inject_handlers, handler)) { + + /* Ignore errors not destined for this pool */ + if (zio->io_spa != handler->zi_spa) + continue; + + if (handler->zi_record.zi_duration == 0) + continue; + + /* + * Positive duration implies # of seconds, negative + * a number of txgs + */ + if (handler->zi_record.zi_timer == 0) { + if (handler->zi_record.zi_duration > 0) + handler->zi_record.zi_timer = ddi_get_lbolt64(); + else + handler->zi_record.zi_timer = zio->io_txg; + } + + /* Have a "problem" writing 60% of the time */ + if (spa_get_random(100) < 60) + zio->io_pipeline &= ~ZIO_VDEV_IO_STAGES; + break; + } + + rw_exit(&inject_lock); +} + +void +spa_handle_ignored_writes(spa_t *spa) +{ + inject_handler_t *handler; + + if (zio_injection_enabled == 0) + return; + + rw_enter(&inject_lock, RW_READER); + + for (handler = list_head(&inject_handlers); handler != NULL; + handler = list_next(&inject_handlers, handler)) { + + /* Ignore errors not destined for this pool */ + if (spa != handler->zi_spa) + continue; + + if (handler->zi_record.zi_duration == 0) + continue; + + if (handler->zi_record.zi_duration > 0) { + VERIFY(handler->zi_record.zi_timer == 0 || + handler->zi_record.zi_timer + + handler->zi_record.zi_duration * hz > + ddi_get_lbolt64()); + } else { + /* duration is negative so the subtraction here adds */ + VERIFY(handler->zi_record.zi_timer == 0 || + handler->zi_record.zi_timer - + handler->zi_record.zi_duration >= + spa_syncing_txg(spa)); + } + } + + rw_exit(&inject_lock); +} + +/* * Create a new handler for the given record. We add it to the list, adding * a reference to the spa_t in the process. We increment zio_injection_enabled, * which is the switch to trigger all fault injection. diff --git a/module/zfs/zle.c b/module/zfs/zle.c new file mode 100644 index 000000000..13c5673fb --- /dev/null +++ b/module/zfs/zle.c @@ -0,0 +1,86 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* + * Zero-length encoding. This is a fast and simple algorithm to eliminate + * runs of zeroes. Each chunk of compressed data begins with a length byte, b. + * If b < n (where n is the compression parameter) then the next b + 1 bytes + * are literal values. If b >= n then the next (256 - b + 1) bytes are zero. + */ +#include <sys/types.h> +#include <sys/sysmacros.h> + +size_t +zle_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) +{ + uchar_t *src = s_start; + uchar_t *dst = d_start; + uchar_t *s_end = src + s_len; + uchar_t *d_end = dst + d_len; + + while (src < s_end && dst < d_end - 1) { + uchar_t *first = src; + uchar_t *len = dst++; + if (src[0] == 0) { + uchar_t *last = src + (256 - n); + while (src < MIN(last, s_end) && src[0] == 0) + src++; + *len = src - first - 1 + n; + } else { + uchar_t *last = src + n; + if (d_end - dst < n) + break; + while (src < MIN(last, s_end) - 1 && (src[0] | src[1])) + *dst++ = *src++; + if (src[0]) + *dst++ = *src++; + *len = src - first - 1; + } + } + return (src == s_end ? dst - (uchar_t *)d_start : s_len); +} + +int +zle_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) +{ + uchar_t *src = s_start; + uchar_t *dst = d_start; + uchar_t *s_end = src + s_len; + uchar_t *d_end = dst + d_len; + + while (src < s_end && dst < d_end) { + int len = 1 + *src++; + if (len <= n) { + while (len-- != 0) + *dst++ = *src++; + } else { + len -= n; + while (len-- != 0) + *dst++ = 0; + } + } + return (dst == d_end ? 0 : -1); +} diff --git a/scripts/zfs-update.sh b/scripts/zfs-update.sh index 1b74b7e7e..474c49ad7 100755 --- a/scripts/zfs-update.sh +++ b/scripts/zfs-update.sh @@ -11,7 +11,7 @@ RELEASE=$1 PROG=update-zfs.sh REMOTE_DOC_FILE=man-sunosman-20090930.tar.bz2 REMOTE_DOC=http://dlc.sun.com/osol/man/downloads/current/${REMOTE_DOC_FILE} -REMOTE_SRC=http://dlc.sun.com/osol/on/downloads/${RELEASE}/on-src.tar.bz2 +REMOTE_SRC=ssh://[email protected]/hg/onnv/onnv-gate die() { rm -Rf ${SRC} @@ -29,10 +29,10 @@ if [ `basename $DST` != "scripts" ]; then fi if [ ! "$RELEASE" ]; then - die "Must specify ZFS release build" + die "Must specify ZFS release build, i.e. 'onnv_141'" fi -SRC=`mktemp -d /tmp/os-${RELEASE}.XXXXXXXXXX` +SRC=`mktemp -d /tmp/onnv-gate.XXXXXXXXXX` DST=`dirname $DST` echo "----------------------------------------------------------------" @@ -41,28 +41,27 @@ echo "Remote Docs: ${REMOTE_DOC}" echo "Local Source: ${SRC}" echo "Local Dest: ${DST}" echo -echo "------------- Fetching OpenSolaris ${RELEASE} archive ----------------" -wget -q ${REMOTE_SRC} -P ${SRC} || - die "Error 'wget ${REMOTE_SRC}'" - +echo "------------- Fetching OpenSolaris mercurial repo ----------------" +pushd ${SRC} +hg clone ${REMOTE_SRC} || die "Error cloning OpenSolaris mercurial repo" +pushd onnv-gate +hg update -C ${RELEASE} || die "Error unknown release ${RELEASE}" +popd +popd echo "------------- Fetching OpenSolaris documentation ---------------" wget -q ${REMOTE_DOC} -P ${SRC} || die "Error 'wget ${REMOTE_DOC}'" -echo "------------- Unpacking OpenSolaris ${RELEASE} archive ---------------" -tar -xjf ${SRC}/on-src.tar.bz2 -C ${SRC} || - die "Error 'tar -xjf ${SRC}/on-src.tar.bz2 -C ${SRC}'" - echo "------------- Unpacking OpenSolaris documentation --------------" tar -xjf ${SRC}/${REMOTE_DOC_FILE} -C ${SRC} || die "Error 'tar -xjf ${SRC}/${REMOTE_DOC_FILE} -C ${SRC}'" -SRC_LIB=${SRC}/usr/src/lib -SRC_CMD=${SRC}/usr/src/cmd -SRC_CM=${SRC}/usr/src/common -SRC_UTS=${SRC}/usr/src/uts -SRC_UCM=${SRC}/usr/src/uts/common -SRC_ZLIB=${SRC}/usr/src/uts/common/fs/zfs +SRC_LIB=${SRC}/onnv-gate/usr/src/lib +SRC_CMD=${SRC}/onnv-gate/usr/src/cmd +SRC_CM=${SRC}/onnv-gate/usr/src/common +SRC_UTS=${SRC}/onnv-gate/usr/src/uts +SRC_UCM=${SRC}/onnv-gate/usr/src/uts/common +SRC_ZLIB=${SRC}/onnv-gate/usr/src/uts/common/fs/zfs SRC_MAN=${SRC}/man DST_MOD=${DST}/module @@ -177,6 +176,6 @@ cp ${SRC_MAN}/man1m/zpool.1m ${DST_MAN}/man8/zpool.8 cp ${SRC_MAN}/man1m/zdb.1m ${DST_MAN}/man8/zdb.8 chmod -R 644 ${DST_MAN}/man8/* -echo "${REMOTE_SRC}" >${DST}/ZFS.RELEASE +echo "${REMOTE_SRC}/${RELEASE}" >${DST}/ZFS.RELEASE rm -Rf ${SRC} |