diff options
Diffstat (limited to 'cmd/ztest/ztest.c')
| -rw-r--r-- | cmd/ztest/ztest.c | 4636 |
1 files changed, 3050 insertions, 1586 deletions
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", |