module/zfs/zfs_sa.c

78 zfs_sa_readlink(znode_t *zp, zfs_uio_t *uio)
80 	dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
84 	bufsz = zp->z_size;
91 		if ((error = dmu_buf_hold(ZTOZSB(zp)->z_os, zp->z_id,
103 zfs_sa_symlink(znode_t *zp, char *link, int len, dmu_tx_t *tx)
105 	dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
116 		zfs_grow_blocksize(zp, len, tx);
117 		VERIFY0(dmu_buf_hold(ZTOZSB(zp)->z_os, zp->z_id, 0, FTAG, &dbp,
129 zfs_sa_get_scanstamp(znode_t *zp, xvattr_t *xvap)
131 	zfsvfs_t *zfsvfs = ZTOZSB(zp);
134 	ASSERT(MUTEX_HELD(&zp->z_lock));
136 	if (zp->z_is_sa) {
137 		if (sa_lookup(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs),
143 		dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
146 		if (!(zp->z_pflags & ZFS_BONUS_SCANSTAMP))
149 		sa_object_info(zp->z_sa_hdl, &doi);
163 zfs_sa_set_scanstamp(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx)
165 	zfsvfs_t *zfsvfs = ZTOZSB(zp);
168 	ASSERT(MUTEX_HELD(&zp->z_lock));
170 	if (zp->z_is_sa)
171 		VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs),
176 		dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
179 		sa_object_info(zp->z_sa_hdl, &doi);
187 		zp->z_pflags |= ZFS_BONUS_SCANSTAMP;
188 		VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zfsvfs),
189 		    &zp->z_pflags, sizeof (uint64_t), tx));
194 zfs_sa_get_xattr(znode_t *zp)
196 	zfsvfs_t *zfsvfs = ZTOZSB(zp);
201 	ASSERT(RW_LOCK_HELD(&zp->z_xattr_lock));
202 	ASSERT(!zp->z_xattr_cached);
203 	ASSERT(zp->z_is_sa);
205 	error = sa_size(zp->z_sa_hdl, SA_ZPL_DXATTR(zfsvfs), &size);
208 			return nvlist_alloc(&zp->z_xattr_cached,
216 	error = sa_lookup(zp->z_sa_hdl, SA_ZPL_DXATTR(zfsvfs), obj, size);
218 		error = nvlist_unpack(obj, size, &zp->z_xattr_cached, KM_SLEEP);
226 zfs_sa_set_xattr(znode_t *zp, const char *name, const void *value, size_t vsize)
228 	zfsvfs_t *zfsvfs = ZTOZSB(zp);
235 	ASSERT(RW_WRITE_HELD(&zp->z_xattr_lock));
236 	ASSERT(zp->z_xattr_cached);
237 	ASSERT(zp->z_is_sa);
239 	error = nvlist_size(zp->z_xattr_cached, &size, NV_ENCODE_XDR);
247 	error = nvlist_pack(zp->z_xattr_cached, &obj, &size,
265 	dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE);
276 			zfs_log_setsaxattr(zilog, tx, TX_SETSAXATTR, zp, name,
279 		zfs_tstamp_update_setup(zp, STATE_CHANGED, NULL, ctime);
284 		VERIFY0(sa_bulk_update(zp->z_sa_hdl, bulk, count, tx));
308 	znode_t *zp = sa_get_userdata(hdl);
309 	zfsvfs_t *zfsvfs = ZTOZSB(zp);
326 	if (zp->z_acl_cached == NULL || Z_ISLNK(ZTOTYPE(zp)))
338 	if (MUTEX_NOT_HELD(&zp->z_lock)) {
339 		if (mutex_tryenter(&zp->z_lock) == 0)
365 	    !(zp->z_pflags & ZFS_PROJID)) {
366 		zp->z_pflags |= ZFS_PROJID;
367 		zp->z_projid = ZFS_DEFAULT_PROJID;
378 	    &zp->z_size, 8);
386 	    &zp->z_pflags, 8);
395 	links = ZTONLNK(zp);
400 		    &zp->z_projid, 8);
401 	if (Z_ISBLK(ZTOTYPE(zp)) || Z_ISCHR(ZTOTYPE(zp)))
405 	    &zp->z_acl_cached->z_acl_count, 8);
407 	if (zp->z_acl_cached->z_version < ZFS_ACL_VERSION_FUID)
408 		zfs_acl_xform(zp, zp->z_acl_cached, CRED());
410 	locate.cb_aclp = zp->z_acl_cached;
412 	    zfs_acl_data_locator, &locate, zp->z_acl_cached->z_acl_bytes);
420 	if (zp->z_pflags & ZFS_BONUS_SCANSTAMP) {
426 		zp->z_pflags &= ~ZFS_BONUS_SCANSTAMP;
436 	zp->z_is_sa = B_TRUE;
441 		mutex_exit(&zp->z_lock);
445 zfs_sa_upgrade_txholds(dmu_tx_t *tx, znode_t *zp)
447 	if (!ZTOZSB(zp)->z_use_sa || zp->z_is_sa)
451 	dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE);
453 	if (zfs_external_acl(zp)) {
454 		dmu_tx_hold_free(tx, zfs_external_acl(zp), 0,