diff options
Diffstat (limited to 'module/zfs/zfs_znode.c')
| -rw-r--r-- | module/zfs/zfs_znode.c | 712 |
1 files changed, 505 insertions, 207 deletions
diff --git a/module/zfs/zfs_znode.c b/module/zfs/zfs_znode.c index f99e72f1d..24bd3ddcd 100644 --- a/module/zfs/zfs_znode.c +++ b/module/zfs/zfs_znode.c @@ -19,8 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ /* Portions Copyright 2007 Jeremy Teo */ @@ -52,6 +51,7 @@ #include <sys/zfs_ioctl.h> #include <sys/zfs_rlock.h> #include <sys/zfs_fuid.h> +#include <sys/dnode.h> #include <sys/fs/zfs.h> #include <sys/kidmap.h> #endif /* _KERNEL */ @@ -61,8 +61,11 @@ #include <sys/stat.h> #include <sys/zap.h> #include <sys/zfs_znode.h> +#include <sys/sa.h> +#include <sys/zfs_sa.h> #include "zfs_prop.h" +#include "zfs_comutil.h" /* * Define ZNODE_STATS to turn on statistic gathering. By default, it is only @@ -131,7 +134,6 @@ zfs_znode_cache_constructor(void *buf, void *arg, int kmflags) avl_create(&zp->z_range_avl, zfs_range_compare, sizeof (rl_t), offsetof(rl_t, r_node)); - zp->z_dbuf = NULL; zp->z_dirlocks = NULL; zp->z_acl_cached = NULL; return (0); @@ -154,7 +156,6 @@ zfs_znode_cache_destructor(void *buf, void *arg) avl_destroy(&zp->z_range_avl); mutex_destroy(&zp->z_range_lock); - ASSERT(zp->z_dbuf == NULL); ASSERT(zp->z_dirlocks == NULL); ASSERT(zp->z_acl_cached == NULL); } @@ -198,24 +199,26 @@ zfs_znode_move_impl(znode_t *ozp, znode_t *nzp) nzp->z_last_itx = ozp->z_last_itx; nzp->z_gen = ozp->z_gen; nzp->z_sync_cnt = ozp->z_sync_cnt; - nzp->z_phys = ozp->z_phys; - nzp->z_dbuf = ozp->z_dbuf; + nzp->z_is_sa = ozp->z_is_sa; + nzp->z_sa_hdl = ozp->z_sa_hdl; + bcopy(ozp->z_atime, nzp->z_atime, sizeof (uint64_t) * 2); + nzp->z_links = ozp->z_links; + nzp->z_size = ozp->z_size; + nzp->z_pflags = ozp->z_pflags; + nzp->z_uid = ozp->z_uid; + nzp->z_gid = ozp->z_gid; + nzp->z_mode = ozp->z_mode; /* - * Release any cached ACL, since it *may* have - * zfs_acl_node_t's that directly references an - * embedded ACL in the zp_acl of the old znode_phys_t - * - * It will be recached the next time the ACL is needed. + * Since this is just an idle znode and kmem is already dealing with + * memory pressure, release any cached ACL. */ if (ozp->z_acl_cached) { zfs_acl_free(ozp->z_acl_cached); ozp->z_acl_cached = NULL; } - /* Update back pointers. */ - (void) dmu_buf_update_user(nzp->z_dbuf, ozp, nzp, &nzp->z_phys, - znode_evict_error); + sa_set_userp(nzp->z_sa_hdl, nzp); /* * Invalidate the original znode by clearing fields that provide a @@ -223,7 +226,7 @@ zfs_znode_move_impl(znode_t *ozp, znode_t *nzp) * ensure that zfs_znode_move() recognizes the znode as invalid in any * subsequent callback. */ - ozp->z_dbuf = NULL; + ozp->z_sa_hdl = NULL; POINTER_INVALIDATE(&ozp->z_zfsvfs); } @@ -478,6 +481,7 @@ zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx) sharezp->z_unlinked = 0; sharezp->z_atime_dirty = 0; sharezp->z_zfsvfs = zfsvfs; + sharezp->z_is_sa = zfsvfs->z_use_sa; vp = ZTOV(sharezp); vn_reinit(vp); @@ -485,8 +489,7 @@ zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx) VERIFY(0 == zfs_acl_ids_create(sharezp, IS_ROOT_NODE, &vattr, kcred, NULL, &acl_ids)); - zfs_mknode(sharezp, &vattr, tx, kcred, IS_ROOT_NODE, - &zp, 0, &acl_ids); + zfs_mknode(sharezp, &vattr, tx, kcred, IS_ROOT_NODE, &zp, &acl_ids); ASSERT3P(zp, ==, sharezp); ASSERT(!vn_in_dnlc(ZTOV(sharezp))); /* not valid to move */ POINTER_INVALIDATE(&sharezp->z_zfsvfs); @@ -496,8 +499,7 @@ zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx) zfs_acl_ids_free(&acl_ids); ZTOV(sharezp)->v_count = 0; - dmu_buf_rele(sharezp->z_dbuf, NULL); - sharezp->z_dbuf = NULL; + sa_handle_destroy(sharezp->z_sa_hdl); kmem_cache_free(znode_cache, sharezp); return (error); @@ -561,25 +563,25 @@ zfs_cmpldev(uint64_t dev) } static void -zfs_znode_dmu_init(zfsvfs_t *zfsvfs, znode_t *zp, dmu_buf_t *db) +zfs_znode_sa_init(zfsvfs_t *zfsvfs, znode_t *zp, + dmu_buf_t *db, dmu_object_type_t obj_type, sa_handle_t *sa_hdl) { - znode_t *nzp; - ASSERT(!POINTER_IS_VALID(zp->z_zfsvfs) || (zfsvfs == zp->z_zfsvfs)); ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zfsvfs, zp->z_id))); mutex_enter(&zp->z_lock); - ASSERT(zp->z_dbuf == NULL); - zp->z_dbuf = db; - nzp = dmu_buf_set_user_ie(db, zp, &zp->z_phys, znode_evict_error); + ASSERT(zp->z_sa_hdl == NULL); + ASSERT(zp->z_acl_cached == NULL); + if (sa_hdl == NULL) { + VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, zp, + SA_HDL_SHARED, &zp->z_sa_hdl)); + } else { + zp->z_sa_hdl = sa_hdl; + sa_set_userp(sa_hdl, zp); + } - /* - * there should be no - * concurrent zgets on this object. - */ - if (nzp != NULL) - panic("existing znode %p for dbuf %p", (void *)nzp, (void *)db); + zp->z_is_sa = (obj_type == DMU_OT_SA) ? B_TRUE : B_FALSE; /* * Slap on VROOT if we are the root znode @@ -594,14 +596,12 @@ zfs_znode_dmu_init(zfsvfs_t *zfsvfs, znode_t *zp, dmu_buf_t *db) void zfs_znode_dmu_fini(znode_t *zp) { - dmu_buf_t *db = zp->z_dbuf; ASSERT(MUTEX_HELD(ZFS_OBJ_MUTEX(zp->z_zfsvfs, zp->z_id)) || zp->z_unlinked || RW_WRITE_HELD(&zp->z_zfsvfs->z_teardown_inactive_lock)); - ASSERT(zp->z_dbuf != NULL); - zp->z_dbuf = NULL; - VERIFY(zp == dmu_buf_update_user(db, zp, NULL, NULL, NULL)); - dmu_buf_rele(db, NULL); + + sa_handle_destroy(zp->z_sa_hdl); + zp->z_sa_hdl = NULL; } /* @@ -612,22 +612,27 @@ zfs_znode_dmu_fini(znode_t *zp) * return the znode */ static znode_t * -zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) +zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz, + dmu_object_type_t obj_type, sa_handle_t *hdl) { znode_t *zp; vnode_t *vp; + uint64_t mode; + uint64_t parent; + uint64_t uid, gid; + sa_bulk_attr_t bulk[9]; + int count = 0; zp = kmem_cache_alloc(znode_cache, KM_SLEEP); ASSERT(zp->z_dirlocks == NULL); - ASSERT(zp->z_dbuf == NULL); ASSERT(!POINTER_IS_VALID(zp->z_zfsvfs)); /* * Defer setting z_zfsvfs until the znode is ready to be a candidate for * the zfs_znode_move() callback. */ - zp->z_phys = NULL; + zp->z_sa_hdl = NULL; zp->z_unlinked = 0; zp->z_atime_dirty = 0; zp->z_mapcnt = 0; @@ -640,16 +645,41 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) vp = ZTOV(zp); vn_reinit(vp); - zfs_znode_dmu_init(zfsvfs, zp, db); - - zp->z_gen = zp->z_phys->zp_gen; + zfs_znode_sa_init(zfsvfs, zp, db, obj_type, hdl); + + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GEN(zfsvfs), NULL, &zp->z_gen, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL, + &zp->z_size, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL, + &zp->z_links, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL, &parent, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL, + &zp->z_atime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, + &uid, 8); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, + &gid, 8); + + if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count) != 0 || zp->z_gen == 0) { + if (hdl == NULL) + sa_handle_destroy(zp->z_sa_hdl); + kmem_cache_free(znode_cache, zp); + return (NULL); + } + zp->z_uid = zfs_fuid_map_id(zfsvfs, uid, CRED(), ZFS_OWNER); + zp->z_gid = zfs_fuid_map_id(zfsvfs, gid, CRED(), ZFS_GROUP); + zp->z_mode = mode; vp->v_vfsp = zfsvfs->z_parent->z_vfs; - vp->v_type = IFTOVT((mode_t)zp->z_phys->zp_mode); + + vp->v_type = IFTOVT((mode_t)mode); switch (vp->v_type) { case VDIR: - if (zp->z_phys->zp_flags & ZFS_XATTR) { + if (zp->z_pflags & ZFS_XATTR) { vn_setops(vp, zfs_xdvnodeops); vp->v_flag |= V_XATTRDIR; } else { @@ -659,7 +689,13 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) break; case VBLK: case VCHR: - vp->v_rdev = zfs_cmpldev(zp->z_phys->zp_rdev); + { + uint64_t rdev; + VERIFY(sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zfsvfs), + &rdev, sizeof (rdev)) == 0); + + vp->v_rdev = zfs_cmpldev(rdev); + } /*FALLTHROUGH*/ case VFIFO: case VSOCK: @@ -668,10 +704,12 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) break; case VREG: vp->v_flag |= VMODSORT; - if (zp->z_phys->zp_parent == zfsvfs->z_shares_dir) + if (parent == zfsvfs->z_shares_dir) { + ASSERT(uid == 0 && gid == 0); vn_setops(vp, zfs_sharevnodeops); - else + } else { vn_setops(vp, zfs_fvnodeops); + } break; case VLNK: vn_setops(vp, zfs_symvnodeops); @@ -695,6 +733,9 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) return (zp); } +static uint64_t empty_xattr; +static uint64_t pad[4]; +static zfs_acl_phys_t acl_phys; /* * Create a new DMU object to hold a zfs znode. * @@ -705,7 +746,6 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) * flag - flags: * IS_ROOT_NODE - new object will be root * IS_XATTR - new object is an attribute - * IS_REPLAY - intent log replay * bonuslen - length of bonus buffer * setaclp - File/Dir initial ACL * fuidp - Tracks fuid allocation. @@ -715,20 +755,28 @@ zfs_znode_alloc(zfsvfs_t *zfsvfs, dmu_buf_t *db, int blksz) */ void zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr, - uint_t flag, znode_t **zpp, int bonuslen, zfs_acl_ids_t *acl_ids) + uint_t flag, znode_t **zpp, zfs_acl_ids_t *acl_ids) { - dmu_buf_t *db; - znode_phys_t *pzp; + uint64_t crtime[2], atime[2], mtime[2], ctime[2]; + uint64_t mode, size, links, parent, pflags; + uint64_t dzp_pflags = 0; + uint64_t rdev = 0; zfsvfs_t *zfsvfs = dzp->z_zfsvfs; + dmu_buf_t *db; timestruc_t now; uint64_t gen, obj; int err; + int bonuslen; + sa_handle_t *sa_hdl; + dmu_object_type_t obj_type; + sa_bulk_attr_t sa_attrs[ZPL_END]; + int cnt = 0; + zfs_acl_locator_cb_t locate = { 0 }; ASSERT(vap && (vap->va_mask & (AT_TYPE|AT_MODE)) == (AT_TYPE|AT_MODE)); if (zfsvfs->z_replay) { obj = vap->va_nodeid; - flag |= IS_REPLAY; now = vap->va_ctime; /* see zfs_replay_create() */ gen = vap->va_nblocks; /* ditto */ } else { @@ -737,6 +785,10 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr, gen = dmu_tx_get_txg(tx); } + obj_type = zfsvfs->z_use_sa ? DMU_OT_SA : DMU_OT_ZNODE; + bonuslen = (obj_type == DMU_OT_SA) ? + DN_MAX_BONUSLEN : ZFS_OLD_ZNODE_PHYS_SIZE; + /* * Create a new DMU object. */ @@ -747,109 +799,215 @@ zfs_mknode(znode_t *dzp, vattr_t *vap, dmu_tx_t *tx, cred_t *cr, * assertions below. */ if (vap->va_type == VDIR) { - if (flag & IS_REPLAY) { + if (zfsvfs->z_replay) { err = zap_create_claim_norm(zfsvfs->z_os, obj, zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); ASSERT3U(err, ==, 0); } else { obj = zap_create_norm(zfsvfs->z_os, zfsvfs->z_norm, DMU_OT_DIRECTORY_CONTENTS, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); } } else { - if (flag & IS_REPLAY) { + if (zfsvfs->z_replay) { err = dmu_object_claim(zfsvfs->z_os, obj, DMU_OT_PLAIN_FILE_CONTENTS, 0, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); ASSERT3U(err, ==, 0); } else { obj = dmu_object_alloc(zfsvfs->z_os, DMU_OT_PLAIN_FILE_CONTENTS, 0, - DMU_OT_ZNODE, sizeof (znode_phys_t) + bonuslen, tx); + obj_type, bonuslen, tx); } } - VERIFY(0 == dmu_bonus_hold(zfsvfs->z_os, obj, NULL, &db)); - dmu_buf_will_dirty(db, tx); - /* - * Initialize the znode physical data to zero. - */ - ASSERT(db->db_size >= sizeof (znode_phys_t)); - bzero(db->db_data, db->db_size); - pzp = db->db_data; + ZFS_OBJ_HOLD_ENTER(zfsvfs, obj); + VERIFY(0 == sa_buf_hold(zfsvfs->z_os, obj, NULL, &db)); /* * If this is the root, fix up the half-initialized parent pointer * to reference the just-allocated physical data area. */ if (flag & IS_ROOT_NODE) { - dzp->z_dbuf = db; - dzp->z_phys = pzp; dzp->z_id = obj; + } else { + dzp_pflags = dzp->z_pflags; } /* * If parent is an xattr, so am I. */ - if (dzp->z_phys->zp_flags & ZFS_XATTR) + if (dzp_pflags & ZFS_XATTR) { flag |= IS_XATTR; - - if (vap->va_type == VBLK || vap->va_type == VCHR) { - pzp->zp_rdev = zfs_expldev(vap->va_rdev); } if (zfsvfs->z_use_fuids) - pzp->zp_flags = ZFS_ARCHIVE | ZFS_AV_MODIFIED; + pflags = ZFS_ARCHIVE | ZFS_AV_MODIFIED; + else + pflags = 0; if (vap->va_type == VDIR) { - pzp->zp_size = 2; /* contents ("." and "..") */ - pzp->zp_links = (flag & (IS_ROOT_NODE | IS_XATTR)) ? 2 : 1; + size = 2; /* contents ("." and "..") */ + links = (flag & (IS_ROOT_NODE | IS_XATTR)) ? 2 : 1; + } else { + size = links = 0; } - pzp->zp_parent = dzp->z_id; + if (vap->va_type == VBLK || vap->va_type == VCHR) { + rdev = zfs_expldev(vap->va_rdev); + } + + parent = dzp->z_id; + mode = acl_ids->z_mode; if (flag & IS_XATTR) - pzp->zp_flags |= ZFS_XATTR; + pflags |= ZFS_XATTR; - pzp->zp_gen = gen; + /* + * No execs denied will be deterimed when zfs_mode_compute() is called. + */ + pflags |= acl_ids->z_aclp->z_hints & + (ZFS_ACL_TRIVIAL|ZFS_INHERIT_ACE|ZFS_ACL_AUTO_INHERIT| + ZFS_ACL_DEFAULTED|ZFS_ACL_PROTECTED); - ZFS_TIME_ENCODE(&now, pzp->zp_crtime); - ZFS_TIME_ENCODE(&now, pzp->zp_ctime); + ZFS_TIME_ENCODE(&now, crtime); + ZFS_TIME_ENCODE(&now, ctime); if (vap->va_mask & AT_ATIME) { - ZFS_TIME_ENCODE(&vap->va_atime, pzp->zp_atime); + ZFS_TIME_ENCODE(&vap->va_atime, atime); } else { - ZFS_TIME_ENCODE(&now, pzp->zp_atime); + ZFS_TIME_ENCODE(&now, atime); } if (vap->va_mask & AT_MTIME) { - ZFS_TIME_ENCODE(&vap->va_mtime, pzp->zp_mtime); + ZFS_TIME_ENCODE(&vap->va_mtime, mtime); + } else { + ZFS_TIME_ENCODE(&now, mtime); + } + + /* Now add in all of the "SA" attributes */ + VERIFY(0 == sa_handle_get_from_db(zfsvfs->z_os, db, NULL, SA_HDL_SHARED, + &sa_hdl)); + + /* + * Setup the array of attributes to be replaced/set on the new file + * + * order for DMU_OT_ZNODE is critical since it needs to be constructed + * in the old znode_phys_t format. Don't change this ordering + */ + + if (obj_type == DMU_OT_ZNODE) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs), + NULL, &atime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs), + NULL, &mtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs), + NULL, &ctime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs), + NULL, &crtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs), + NULL, &gen, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs), + NULL, &mode, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs), + NULL, &size, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs), + NULL, &parent, 8); } else { - ZFS_TIME_ENCODE(&now, pzp->zp_mtime); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MODE(zfsvfs), + NULL, &mode, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_SIZE(zfsvfs), + NULL, &size, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GEN(zfsvfs), + NULL, &gen, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL, + &acl_ids->z_fuid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL, + &acl_ids->z_fgid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PARENT(zfsvfs), + NULL, &parent, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs), + NULL, &pflags, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ATIME(zfsvfs), + NULL, &atime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_MTIME(zfsvfs), + NULL, &mtime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CTIME(zfsvfs), + NULL, &ctime, 16); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_CRTIME(zfsvfs), + NULL, &crtime, 16); + } + + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_LINKS(zfsvfs), NULL, &links, 8); + + if (obj_type == DMU_OT_ZNODE) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_XATTR(zfsvfs), NULL, + &empty_xattr, 8); } + if (obj_type == DMU_OT_ZNODE || + (vap->va_type == VBLK || vap->va_type == VCHR)) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_RDEV(zfsvfs), + NULL, &rdev, 8); + + } + if (obj_type == DMU_OT_ZNODE) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_FLAGS(zfsvfs), + NULL, &pflags, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_UID(zfsvfs), NULL, + &acl_ids->z_fuid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_GID(zfsvfs), NULL, + &acl_ids->z_fgid, 8); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_PAD(zfsvfs), NULL, pad, + sizeof (uint64_t) * 4); + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_ZNODE_ACL(zfsvfs), NULL, + &acl_phys, sizeof (zfs_acl_phys_t)); + } else if (acl_ids->z_aclp->z_version >= ZFS_ACL_VERSION_FUID) { + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_COUNT(zfsvfs), NULL, + &acl_ids->z_aclp->z_acl_count, 8); + locate.cb_aclp = acl_ids->z_aclp; + SA_ADD_BULK_ATTR(sa_attrs, cnt, SA_ZPL_DACL_ACES(zfsvfs), + zfs_acl_data_locator, &locate, + acl_ids->z_aclp->z_acl_bytes); + mode = zfs_mode_compute(mode, acl_ids->z_aclp, &pflags, + acl_ids->z_fuid, acl_ids->z_fgid); + } + + VERIFY(sa_replace_all_by_template(sa_hdl, sa_attrs, cnt, tx) == 0); - pzp->zp_mode = MAKEIMODE(vap->va_type, vap->va_mode); if (!(flag & IS_ROOT_NODE)) { - ZFS_OBJ_HOLD_ENTER(zfsvfs, obj); - *zpp = zfs_znode_alloc(zfsvfs, db, 0); - ZFS_OBJ_HOLD_EXIT(zfsvfs, obj); + *zpp = zfs_znode_alloc(zfsvfs, db, 0, obj_type, sa_hdl); + ASSERT(*zpp != NULL); } else { /* * If we are creating the root node, the "parent" we * passed in is the znode for the root. */ *zpp = dzp; + + (*zpp)->z_sa_hdl = sa_hdl; } - pzp->zp_uid = acl_ids->z_fuid; - pzp->zp_gid = acl_ids->z_fgid; - pzp->zp_mode = acl_ids->z_mode; - VERIFY(0 == zfs_aclset_common(*zpp, acl_ids->z_aclp, cr, tx)); + + (*zpp)->z_pflags = pflags; + (*zpp)->z_mode = mode; + if (vap->va_mask & AT_XVATTR) - zfs_xvattr_set(*zpp, (xvattr_t *)vap); + zfs_xvattr_set(*zpp, (xvattr_t *)vap, tx); + + if (obj_type == DMU_OT_ZNODE || + acl_ids->z_aclp->z_version < ZFS_ACL_VERSION_FUID) { + err = zfs_aclset_common(*zpp, acl_ids->z_aclp, cr, tx); + ASSERT3P(err, ==, 0); + } + ZFS_OBJ_HOLD_EXIT(zfsvfs, obj); } +/* + * zfs_xvattr_set only updates the in-core attributes + * it is assumed the caller will be doing an sa_bulk_update + * to push the changes out + */ void -zfs_xvattr_set(znode_t *zp, xvattr_t *xvap) +zfs_xvattr_set(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx) { xoptattr_t *xoap; @@ -857,60 +1015,76 @@ zfs_xvattr_set(znode_t *zp, xvattr_t *xvap) ASSERT(xoap); if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) { - ZFS_TIME_ENCODE(&xoap->xoa_createtime, zp->z_phys->zp_crtime); + uint64_t times[2]; + ZFS_TIME_ENCODE(&xoap->xoa_createtime, times); + (void) sa_update(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), + ×, sizeof (times), tx); XVA_SET_RTN(xvap, XAT_CREATETIME); } if (XVA_ISSET_REQ(xvap, XAT_READONLY)) { - ZFS_ATTR_SET(zp, ZFS_READONLY, xoap->xoa_readonly); + ZFS_ATTR_SET(zp, ZFS_READONLY, xoap->xoa_readonly, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_READONLY); } if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) { - ZFS_ATTR_SET(zp, ZFS_HIDDEN, xoap->xoa_hidden); + ZFS_ATTR_SET(zp, ZFS_HIDDEN, xoap->xoa_hidden, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_HIDDEN); } if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) { - ZFS_ATTR_SET(zp, ZFS_SYSTEM, xoap->xoa_system); + ZFS_ATTR_SET(zp, ZFS_SYSTEM, xoap->xoa_system, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_SYSTEM); } if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) { - ZFS_ATTR_SET(zp, ZFS_ARCHIVE, xoap->xoa_archive); + ZFS_ATTR_SET(zp, ZFS_ARCHIVE, xoap->xoa_archive, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_ARCHIVE); } if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) { - ZFS_ATTR_SET(zp, ZFS_IMMUTABLE, xoap->xoa_immutable); + ZFS_ATTR_SET(zp, ZFS_IMMUTABLE, xoap->xoa_immutable, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_IMMUTABLE); } if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) { - ZFS_ATTR_SET(zp, ZFS_NOUNLINK, xoap->xoa_nounlink); + ZFS_ATTR_SET(zp, ZFS_NOUNLINK, xoap->xoa_nounlink, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_NOUNLINK); } if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) { - ZFS_ATTR_SET(zp, ZFS_APPENDONLY, xoap->xoa_appendonly); + ZFS_ATTR_SET(zp, ZFS_APPENDONLY, xoap->xoa_appendonly, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_APPENDONLY); } if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) { - ZFS_ATTR_SET(zp, ZFS_NODUMP, xoap->xoa_nodump); + ZFS_ATTR_SET(zp, ZFS_NODUMP, xoap->xoa_nodump, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_NODUMP); } if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) { - ZFS_ATTR_SET(zp, ZFS_OPAQUE, xoap->xoa_opaque); + ZFS_ATTR_SET(zp, ZFS_OPAQUE, xoap->xoa_opaque, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_OPAQUE); } if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) { ZFS_ATTR_SET(zp, ZFS_AV_QUARANTINED, - xoap->xoa_av_quarantined); + xoap->xoa_av_quarantined, zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_AV_QUARANTINED); } if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) { - ZFS_ATTR_SET(zp, ZFS_AV_MODIFIED, xoap->xoa_av_modified); + ZFS_ATTR_SET(zp, ZFS_AV_MODIFIED, xoap->xoa_av_modified, + zp->z_pflags, tx); XVA_SET_RTN(xvap, XAT_AV_MODIFIED); } if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) { - (void) memcpy(zp->z_phys + 1, xoap->xoa_av_scanstamp, - sizeof (xoap->xoa_av_scanstamp)); - zp->z_phys->zp_flags |= ZFS_BONUS_SCANSTAMP; + zfs_sa_set_scanstamp(zp, xvap, tx); XVA_SET_RTN(xvap, XAT_AV_SCANSTAMP); } + if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) { + ZFS_ATTR_SET(zp, ZFS_REPARSE, xoap->xoa_reparse, + zp->z_pflags, tx); + XVA_SET_RTN(xvap, XAT_REPARSE); + } } int @@ -920,35 +1094,42 @@ zfs_zget(zfsvfs_t *zfsvfs, uint64_t obj_num, znode_t **zpp) dmu_buf_t *db; znode_t *zp; int err; + sa_handle_t *hdl; *zpp = NULL; ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num); - err = dmu_bonus_hold(zfsvfs->z_os, obj_num, NULL, &db); + err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db); if (err) { ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (err); } dmu_object_info_from_db(db, &doi); - if (doi.doi_bonus_type != DMU_OT_ZNODE || - doi.doi_bonus_size < sizeof (znode_phys_t)) { - dmu_buf_rele(db, NULL); + if (doi.doi_bonus_type != DMU_OT_SA && + (doi.doi_bonus_type != DMU_OT_ZNODE || + (doi.doi_bonus_type == DMU_OT_ZNODE && + doi.doi_bonus_size < sizeof (znode_phys_t)))) { + sa_buf_rele(db, NULL); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (EINVAL); } - zp = dmu_buf_get_user(db); - if (zp != NULL) { - mutex_enter(&zp->z_lock); + hdl = dmu_buf_get_user(db); + if (hdl != NULL) { + zp = sa_get_userdata(hdl); + /* - * Since we do immediate eviction of the z_dbuf, we - * should never find a dbuf with a znode that doesn't - * know about the dbuf. + * Since "SA" does immediate eviction we + * should never find a sa handle that doesn't + * know about the znode. */ - ASSERT3P(zp->z_dbuf, ==, db); + + ASSERT3P(zp, !=, NULL); + + mutex_enter(&zp->z_lock); ASSERT3U(zp->z_id, ==, obj_num); if (zp->z_unlinked) { err = ENOENT; @@ -957,7 +1138,7 @@ zfs_zget(zfsvfs_t *zfsvfs, uint64_t obj_num, znode_t **zpp) *zpp = zp; err = 0; } - dmu_buf_rele(db, NULL); + sa_buf_rele(db, NULL); mutex_exit(&zp->z_lock); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (err); @@ -965,11 +1146,24 @@ zfs_zget(zfsvfs_t *zfsvfs, uint64_t obj_num, znode_t **zpp) /* * Not found create new znode/vnode + * but only if file exists. + * + * There is a small window where zfs_vget() could + * find this object while a file create is still in + * progress. This is checked for in zfs_znode_alloc() + * + * if zfs_znode_alloc() fails it will drop the hold on the + * bonus buffer. */ - zp = zfs_znode_alloc(zfsvfs, db, doi.doi_data_block_size); + zp = zfs_znode_alloc(zfsvfs, db, doi.doi_data_block_size, + doi.doi_bonus_type, NULL); + if (zp == NULL) { + err = ENOENT; + } else { + *zpp = zp; + } ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); - *zpp = zp; - return (0); + return (err); } int @@ -979,32 +1173,76 @@ zfs_rezget(znode_t *zp) dmu_object_info_t doi; dmu_buf_t *db; uint64_t obj_num = zp->z_id; + uint64_t mode; + uint64_t uid, gid; + sa_bulk_attr_t bulk[8]; int err; + int count = 0; + uint64_t gen; ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num); - err = dmu_bonus_hold(zfsvfs->z_os, obj_num, NULL, &db); + mutex_enter(&zp->z_acl_lock); + if (zp->z_acl_cached) { + zfs_acl_free(zp->z_acl_cached); + zp->z_acl_cached = NULL; + } + + mutex_exit(&zp->z_acl_lock); + ASSERT(zp->z_sa_hdl == NULL); + err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db); if (err) { ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (err); } dmu_object_info_from_db(db, &doi); - if (doi.doi_bonus_type != DMU_OT_ZNODE || - doi.doi_bonus_size < sizeof (znode_phys_t)) { - dmu_buf_rele(db, NULL); + if (doi.doi_bonus_type != DMU_OT_SA && + (doi.doi_bonus_type != DMU_OT_ZNODE || + (doi.doi_bonus_type == DMU_OT_ZNODE && + doi.doi_bonus_size < sizeof (znode_phys_t)))) { + sa_buf_rele(db, NULL); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (EINVAL); } - if (((znode_phys_t *)db->db_data)->zp_gen != zp->z_gen) { - dmu_buf_rele(db, NULL); + zfs_znode_sa_init(zfsvfs, zp, db, doi.doi_bonus_type, NULL); + + /* reload cached values */ + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GEN(zfsvfs), NULL, + &gen, sizeof (gen)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL, + &zp->z_size, sizeof (zp->z_size)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL, + &zp->z_links, sizeof (zp->z_links)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL, + &zp->z_pflags, sizeof (zp->z_pflags)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ATIME(zfsvfs), NULL, + &zp->z_atime, sizeof (zp->z_atime)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, + &uid, sizeof (uid)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, + &gid, sizeof (gid)); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, + &mode, sizeof (mode)); + + zp->z_mode = mode; + + if (sa_bulk_lookup(zp->z_sa_hdl, bulk, count)) { + zfs_znode_dmu_fini(zp); + ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); + return (EIO); + } + + if (gen != zp->z_gen) { + zfs_znode_dmu_fini(zp); ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); return (EIO); } - zfs_znode_dmu_init(zfsvfs, zp, db); - zp->z_unlinked = (zp->z_phys->zp_links == 0); + zp->z_uid = zfs_fuid_map_id(zfsvfs, uid, CRED(), ZFS_OWNER); + zp->z_gid = zfs_fuid_map_id(zfsvfs, gid, CRED(), ZFS_GROUP); + zp->z_unlinked = (zp->z_links == 0); zp->z_blksz = doi.doi_data_block_size; ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num); @@ -1018,7 +1256,7 @@ zfs_znode_delete(znode_t *zp, dmu_tx_t *tx) zfsvfs_t *zfsvfs = zp->z_zfsvfs; objset_t *os = zfsvfs->z_os; uint64_t obj = zp->z_id; - uint64_t acl_obj = zp->z_phys->zp_acl.z_acl_extern_obj; + uint64_t acl_obj = ZFS_EXTERNAL_ACL(zp); ZFS_OBJ_HOLD_ENTER(zfsvfs, obj); if (acl_obj) @@ -1036,7 +1274,7 @@ zfs_zinactive(znode_t *zp) zfsvfs_t *zfsvfs = zp->z_zfsvfs; uint64_t z_id = zp->z_id; - ASSERT(zp->z_dbuf && zp->z_phys); + ASSERT(zp->z_sa_hdl); /* * Don't allow a zfs_zget() while were trying to release this znode @@ -1075,6 +1313,7 @@ zfs_zinactive(znode_t *zp) zfs_rmnode(zp); return; } + mutex_exit(&zp->z_lock); zfs_znode_dmu_fini(zp); ZFS_OBJ_HOLD_EXIT(zfsvfs, z_id); @@ -1106,59 +1345,40 @@ zfs_znode_free(znode_t *zp) } void -zfs_time_stamper_locked(znode_t *zp, uint_t flag, dmu_tx_t *tx) +zfs_tstamp_update_setup(znode_t *zp, uint_t flag, uint64_t mtime[2], + uint64_t ctime[2], boolean_t have_tx) { timestruc_t now; - ASSERT(MUTEX_HELD(&zp->z_lock)); - gethrestime(&now); - if (tx) { - dmu_buf_will_dirty(zp->z_dbuf, tx); + if (have_tx) { /* will sa_bulk_update happen really soon? */ zp->z_atime_dirty = 0; zp->z_seq++; } else { zp->z_atime_dirty = 1; } - if (flag & AT_ATIME) - ZFS_TIME_ENCODE(&now, zp->z_phys->zp_atime); + if (flag & AT_ATIME) { + ZFS_TIME_ENCODE(&now, zp->z_atime); + } if (flag & AT_MTIME) { - ZFS_TIME_ENCODE(&now, zp->z_phys->zp_mtime); - if (zp->z_zfsvfs->z_use_fuids) - zp->z_phys->zp_flags |= (ZFS_ARCHIVE | ZFS_AV_MODIFIED); + ZFS_TIME_ENCODE(&now, mtime); + if (zp->z_zfsvfs->z_use_fuids) { + zp->z_pflags |= (ZFS_ARCHIVE | + ZFS_AV_MODIFIED); + } } if (flag & AT_CTIME) { - ZFS_TIME_ENCODE(&now, zp->z_phys->zp_ctime); + ZFS_TIME_ENCODE(&now, ctime); if (zp->z_zfsvfs->z_use_fuids) - zp->z_phys->zp_flags |= ZFS_ARCHIVE; + zp->z_pflags |= ZFS_ARCHIVE; } } /* - * Update the requested znode timestamps with the current time. - * If we are in a transaction, then go ahead and mark the znode - * dirty in the transaction so the timestamps will go to disk. - * Otherwise, we will get pushed next time the znode is updated - * in a transaction, or when this znode eventually goes inactive. - * - * Why is this OK? - * 1 - Only the ACCESS time is ever updated outside of a transaction. - * 2 - Multiple consecutive updates will be collapsed into a single - * znode update by the transaction grouping semantics of the DMU. - */ -void -zfs_time_stamper(znode_t *zp, uint_t flag, dmu_tx_t *tx) -{ - mutex_enter(&zp->z_lock); - zfs_time_stamper_locked(zp, flag, tx); - mutex_exit(&zp->z_lock); -} - -/* * Grow the block size for a file. * * IN: zp - znode of file to free data in. @@ -1180,17 +1400,18 @@ zfs_grow_blocksize(znode_t *zp, uint64_t size, dmu_tx_t *tx) * we will not grow. If there is more than one block in a file, * the blocksize cannot change. */ - if (zp->z_blksz && zp->z_phys->zp_size > zp->z_blksz) + if (zp->z_blksz && zp->z_size > zp->z_blksz) return; error = dmu_object_set_blocksize(zp->z_zfsvfs->z_os, zp->z_id, size, 0, tx); + if (error == ENOTSUP) return; ASSERT3U(error, ==, 0); /* What blocksize did we actually get? */ - dmu_object_size_from_db(zp->z_dbuf, &zp->z_blksz, &dummy); + dmu_object_size_from_db(sa_get_db(zp->z_sa_hdl), &zp->z_blksz, &dummy); } /* @@ -1233,13 +1454,14 @@ zfs_extend(znode_t *zp, uint64_t end) /* * Nothing to do if file already at desired length. */ - if (end <= zp->z_phys->zp_size) { + if (end <= zp->z_size) { zfs_range_unlock(rl); return (0); } top: tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); if (end > zp->z_blksz && (!ISP2(zp->z_blksz) || zp->z_blksz < zfsvfs->z_max_blksz)) { /* @@ -1267,12 +1489,14 @@ top: zfs_range_unlock(rl); return (error); } - dmu_buf_will_dirty(zp->z_dbuf, tx); if (newblksz) zfs_grow_blocksize(zp, newblksz, tx); - zp->z_phys->zp_size = end; + zp->z_size = end; + + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zp->z_zfsvfs), + &zp->z_size, sizeof (zp->z_size), tx)); zfs_range_unlock(rl); @@ -1306,13 +1530,13 @@ zfs_free_range(znode_t *zp, uint64_t off, uint64_t len) /* * Nothing to do if file already at desired length. */ - if (off >= zp->z_phys->zp_size) { + if (off >= zp->z_size) { zfs_range_unlock(rl); return (0); } - if (off + len > zp->z_phys->zp_size) - len = zp->z_phys->zp_size - off; + if (off + len > zp->z_size) + len = zp->z_size - off; error = dmu_free_long_range(zfsvfs->z_os, zp->z_id, off, len); @@ -1347,7 +1571,7 @@ zfs_trunc(znode_t *zp, uint64_t end) /* * Nothing to do if file already at desired length. */ - if (end >= zp->z_phys->zp_size) { + if (end >= zp->z_size) { zfs_range_unlock(rl); return (0); } @@ -1359,7 +1583,8 @@ zfs_trunc(znode_t *zp, uint64_t end) } top: tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { if (error == ERESTART) { @@ -1371,9 +1596,11 @@ top: zfs_range_unlock(rl); return (error); } - dmu_buf_will_dirty(zp->z_dbuf, tx); - zp->z_phys->zp_size = end; + zp->z_size = end; + + VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SIZE(zp->z_zfsvfs), + &zp->z_size, sizeof (zp->z_size), tx)); dmu_tx_commit(tx); @@ -1425,9 +1652,17 @@ zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log) dmu_tx_t *tx; zfsvfs_t *zfsvfs = zp->z_zfsvfs; zilog_t *zilog = zfsvfs->z_log; + uint64_t mode; + uint64_t mtime[2], ctime[2]; + sa_bulk_attr_t bulk[3]; + int count = 0; int error; - if (off > zp->z_phys->zp_size) { + if ((error = sa_lookup(zp->z_sa_hdl, SA_ZPL_MODE(zfsvfs), &mode, + sizeof (mode))) != 0) + return (error); + + if (off > zp->z_size) { error = zfs_extend(zp, off+len); if (error == 0 && log) goto log; @@ -1438,8 +1673,9 @@ zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log) /* * Check for any locks in the region to be freed. */ - if (MANDLOCK(vp, (mode_t)zp->z_phys->zp_mode)) { - uint64_t length = (len ? len : zp->z_phys->zp_size - off); + + if (MANDLOCK(vp, (mode_t)mode)) { + uint64_t length = (len ? len : zp->z_size - off); if (error = chklock(vp, FWRITE, off, length, flag, NULL)) return (error); } @@ -1448,14 +1684,15 @@ zfs_freesp(znode_t *zp, uint64_t off, uint64_t len, int flag, boolean_t log) error = zfs_trunc(zp, off); } else { if ((error = zfs_free_range(zp, off, len)) == 0 && - off + len > zp->z_phys->zp_size) + off + len > zp->z_size) error = zfs_extend(zp, off+len); } if (error || !log) return (error); log: tx = dmu_tx_create(zfsvfs->z_os); - dmu_tx_hold_bonus(tx, zp->z_id); + dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_FALSE); + zfs_sa_upgrade_txholds(tx, zp); error = dmu_tx_assign(tx, TXG_NOWAIT); if (error) { if (error == ERESTART) { @@ -1467,7 +1704,14 @@ log: return (error); } - zfs_time_stamper(zp, CONTENT_MODIFIED, tx); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, mtime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, ctime, 16); + SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), + NULL, &zp->z_pflags, 8); + zfs_tstamp_update_setup(zp, CONTENT_MODIFIED, mtime, ctime, B_TRUE); + error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx); + ASSERT(error == 0); + zfs_log_truncate(zilog, tx, TX_TRUNCATE, zp, off, len); dmu_tx_commit(tx); @@ -1478,11 +1722,12 @@ void zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) { zfsvfs_t zfsvfs; - uint64_t moid, obj, version; + uint64_t moid, obj, sa_obj, version; uint64_t sense = ZFS_CASE_SENSITIVE; uint64_t norm = 0; nvpair_t *elem; int error; + int i; znode_t *rootzp = NULL; vnode_t *vp; vattr_t vattr; @@ -1504,12 +1749,7 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) /* * Set starting attributes. */ - if (spa_version(dmu_objset_spa(os)) >= SPA_VERSION_USERSPACE) - version = ZPL_VERSION; - else if (spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID) - version = ZPL_VERSION_USERSPACE - 1; - else - version = ZPL_VERSION_FUID - 1; + version = zfs_zpl_version_map(spa_version(dmu_objset_spa(os))); elem = NULL; while ((elem = nvlist_next_nvpair(zplprops, elem)) != NULL) { /* For the moment we expect all zpl props to be uint64_ts */ @@ -1535,6 +1775,18 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) error = zap_update(os, moid, ZPL_VERSION_STR, 8, 1, &version, tx); /* + * Create zap object used for SA attribute registration + */ + + if (version >= ZPL_VERSION_SA) { + sa_obj = zap_create(os, DMU_OT_SA_MASTER_NODE, + DMU_OT_NONE, 0, tx); + error = zap_add(os, moid, ZFS_SA_ATTRS, 8, 1, &sa_obj, tx); + ASSERT(error == 0); + } else { + sa_obj = 0; + } + /* * Create a delete queue. */ obj = zap_create(os, DMU_OT_UNLINKED_SET, DMU_OT_NONE, 0, tx); @@ -1555,6 +1807,7 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) rootzp = kmem_cache_alloc(znode_cache, KM_SLEEP); rootzp->z_unlinked = 0; rootzp->z_atime_dirty = 0; + rootzp->z_is_sa = USE_SA(version, os); vp = ZTOV(rootzp); vn_reinit(vp); @@ -1566,7 +1819,11 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) zfsvfs.z_parent = &zfsvfs; zfsvfs.z_version = version; zfsvfs.z_use_fuids = USE_FUIDS(version, os); + zfsvfs.z_use_sa = USE_SA(version, os); zfsvfs.z_norm = norm; + + zfsvfs.z_attr_table = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END); + /* * Fold case on file systems that are always or sometimes case * insensitive. @@ -1578,11 +1835,14 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) list_create(&zfsvfs.z_all_znodes, sizeof (znode_t), offsetof(znode_t, z_link_node)); + for (i = 0; i != ZFS_OBJ_MTX_SZ; i++) + mutex_init(&zfsvfs.z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL); + ASSERT(!POINTER_IS_VALID(rootzp->z_zfsvfs)); rootzp->z_zfsvfs = &zfsvfs; VERIFY(0 == zfs_acl_ids_create(rootzp, IS_ROOT_NODE, &vattr, cr, NULL, &acl_ids)); - zfs_mknode(rootzp, &vattr, tx, cr, IS_ROOT_NODE, &zp, 0, &acl_ids); + zfs_mknode(rootzp, &vattr, tx, cr, IS_ROOT_NODE, &zp, &acl_ids); ASSERT3P(zp, ==, rootzp); ASSERT(!vn_in_dnlc(ZTOV(rootzp))); /* not valid to move */ error = zap_add(os, moid, ZFS_ROOT_OBJ, 8, 1, &rootzp->z_id, tx); @@ -1591,8 +1851,7 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) POINTER_INVALIDATE(&rootzp->z_zfsvfs); ZTOV(rootzp)->v_count = 0; - dmu_buf_rele(rootzp->z_dbuf, NULL); - rootzp->z_dbuf = NULL; + sa_handle_destroy(rootzp->z_sa_hdl); kmem_cache_free(znode_cache, rootzp); /* @@ -1602,36 +1861,65 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx) error = zfs_create_share_dir(&zfsvfs, tx); ASSERT(error == 0); + + for (i = 0; i != ZFS_OBJ_MTX_SZ; i++) + mutex_destroy(&zfsvfs.z_hold_mtx[i]); } #endif /* _KERNEL */ + /* * Given an object number, return its parent object number and whether * or not the object is an extended attribute directory. */ static int -zfs_obj_to_pobj(objset_t *osp, uint64_t obj, uint64_t *pobjp, int *is_xattrdir) +zfs_obj_to_pobj(objset_t *osp, uint64_t obj, uint64_t *pobjp, int *is_xattrdir, + sa_attr_type_t *sa_table) { dmu_buf_t *db; dmu_object_info_t doi; - znode_phys_t *zp; int error; - - if ((error = dmu_bonus_hold(osp, obj, FTAG, &db)) != 0) + uint64_t parent; + uint64_t pflags; + uint64_t mode; + sa_bulk_attr_t bulk[3]; + sa_handle_t *hdl; + int count = 0; + + if ((error = sa_buf_hold(osp, obj, FTAG, &db)) != 0) return (error); dmu_object_info_from_db(db, &doi); - if (doi.doi_bonus_type != DMU_OT_ZNODE || + if ((doi.doi_bonus_type != DMU_OT_SA && + doi.doi_bonus_type != DMU_OT_ZNODE) || + doi.doi_bonus_type == DMU_OT_ZNODE && doi.doi_bonus_size < sizeof (znode_phys_t)) { - dmu_buf_rele(db, FTAG); + sa_buf_rele(db, FTAG); return (EINVAL); } - zp = db->db_data; - *pobjp = zp->zp_parent; - *is_xattrdir = ((zp->zp_flags & ZFS_XATTR) != 0) && - S_ISDIR(zp->zp_mode); - dmu_buf_rele(db, FTAG); + if ((error = sa_handle_get(osp, obj, NULL, SA_HDL_PRIVATE, + &hdl)) != 0) { + sa_buf_rele(db, FTAG); + return (error); + } + + SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_PARENT], + NULL, &parent, 8); + SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_FLAGS], NULL, + &pflags, 8); + SA_ADD_BULK_ATTR(bulk, count, sa_table[ZPL_MODE], NULL, + &mode, 8); + + if ((error = sa_bulk_lookup(hdl, bulk, count)) != 0) { + sa_buf_rele(db, FTAG); + sa_handle_destroy(hdl); + return (error); + } + *pobjp = parent; + *is_xattrdir = ((pflags & ZFS_XATTR) != 0) && S_ISDIR(mode); + sa_handle_destroy(hdl); + sa_buf_rele(db, FTAG); return (0); } @@ -1640,10 +1928,19 @@ int zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len) { char *path = buf + len - 1; + sa_attr_type_t *sa_table; int error; + uint64_t sa_obj = 0; *path = '\0'; + error = zap_lookup(osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1, &sa_obj); + + if (error != 0 && error != ENOENT) + return (error); + + sa_table = sa_setup(osp, sa_obj, zfs_attr_table, ZPL_END); + for (;;) { uint64_t pobj; char component[MAXNAMELEN + 2]; @@ -1651,7 +1948,7 @@ zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len) int is_xattrdir; if ((error = zfs_obj_to_pobj(osp, obj, &pobj, - &is_xattrdir)) != 0) + &is_xattrdir, sa_table)) != 0) break; if (pobj == obj) { @@ -1679,5 +1976,6 @@ zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len) if (error == 0) (void) memmove(buf, path, buf + len - path); + return (error); } |