ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock));
- os = kmem_zalloc(sizeof (objset_t), KM_SLEEP);
+ os = kmem_zalloc(sizeof (objset_t), KM_PUSHPAGE);
os->os_dsl_dataset = ds;
os->os_spa = spa;
os->os_rootbp = bp;
nvlist_t *props, boolean_t recursive, boolean_t temporary, int cleanup_fd)
{
dsl_sync_task_t *dst;
- struct snaparg sn;
+ struct snaparg *sn;
spa_t *spa;
minor_t minor;
int err;
- (void) strcpy(sn.failed, fsname);
+ sn = kmem_alloc(sizeof (struct snaparg), KM_SLEEP);
+ (void) strcpy(sn->failed, fsname);
err = spa_open(fsname, &spa, FTAG);
- if (err)
+ if (err) {
+ kmem_free(sn, sizeof (struct snaparg));
return (err);
+ }
if (temporary) {
if (cleanup_fd < 0) {
}
}
- sn.dstg = dsl_sync_task_group_create(spa_get_dsl(spa));
- sn.snapname = snapname;
- sn.htag = tag;
- sn.props = props;
- sn.recursive = recursive;
- sn.needsuspend = (spa_version(spa) < SPA_VERSION_FAST_SNAP);
- sn.temporary = temporary;
- sn.ha = NULL;
- sn.newds = NULL;
+ sn->dstg = dsl_sync_task_group_create(spa_get_dsl(spa));
+ sn->snapname = snapname;
+ sn->htag = tag;
+ sn->props = props;
+ sn->recursive = recursive;
+ sn->needsuspend = (spa_version(spa) < SPA_VERSION_FAST_SNAP);
+ sn->temporary = temporary;
+ sn->ha = NULL;
+ sn->newds = NULL;
if (recursive) {
err = dmu_objset_find(fsname,
- dmu_objset_snapshot_one, &sn, DS_FIND_CHILDREN);
+ dmu_objset_snapshot_one, sn, DS_FIND_CHILDREN);
} else {
- err = dmu_objset_snapshot_one(fsname, &sn);
+ err = dmu_objset_snapshot_one(fsname, sn);
}
if (err == 0)
- err = dsl_sync_task_group_wait(sn.dstg);
+ err = dsl_sync_task_group_wait(sn->dstg);
- for (dst = list_head(&sn.dstg->dstg_tasks); dst;
- dst = list_next(&sn.dstg->dstg_tasks, dst)) {
+ for (dst = list_head(&sn->dstg->dstg_tasks); dst;
+ dst = list_next(&sn->dstg->dstg_tasks, dst)) {
objset_t *os = dst->dst_arg1;
dsl_dataset_t *ds = os->os_dsl_dataset;
if (dst->dst_err) {
- dsl_dataset_name(ds, sn.failed);
+ dsl_dataset_name(ds, sn->failed);
} else if (temporary) {
- dsl_register_onexit_hold_cleanup(sn.newds, tag, minor);
+ dsl_register_onexit_hold_cleanup(sn->newds, tag, minor);
}
- if (sn.needsuspend)
+ if (sn->needsuspend)
zil_resume(dmu_objset_zil(os));
- dmu_objset_rele(os, &sn);
+ dmu_objset_rele(os, sn);
}
if (err)
- (void) strcpy(fsname, sn.failed);
+ (void) strcpy(fsname, sn->failed);
if (temporary)
zfs_onexit_fd_rele(cleanup_fd);
- dsl_sync_task_group_destroy(sn.dstg);
+ dsl_sync_task_group_destroy(sn->dstg);
spa_close(spa, FTAG);
+ kmem_free(sn, sizeof (struct snaparg));
return (err);
}
!list_is_empty(&os->os_free_dnodes[txg & TXG_MASK]));
}
-boolean_t
-dmu_objset_is_dirty_anywhere(objset_t *os)
-{
- int t;
-
- for (t = 0; t < TXG_SIZE; t++)
- if (dmu_objset_is_dirty(os, t))
- return (B_TRUE);
- return (B_FALSE);
-}
-
static objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES];
void
return (0);
}
+/*
+ * Determine the objset id for a given snapshot name.
+ */
+int
+dmu_snapshot_id(objset_t *os, const char *snapname, uint64_t *idp)
+{
+ dsl_dataset_t *ds = os->os_dsl_dataset;
+ zap_cursor_t cursor;
+ zap_attribute_t attr;
+ int error;
+
+ if (ds->ds_phys->ds_snapnames_zapobj == 0)
+ return (ENOENT);
+
+ zap_cursor_init(&cursor, ds->ds_dir->dd_pool->dp_meta_objset,
+ ds->ds_phys->ds_snapnames_zapobj);
+
+ error = zap_cursor_move_to_key(&cursor, snapname, MT_EXACT);
+ if (error) {
+ zap_cursor_fini(&cursor);
+ return (error);
+ }
+
+ error = zap_cursor_retrieve(&cursor, &attr);
+ if (error) {
+ zap_cursor_fini(&cursor);
+ return (error);
+ }
+
+ *idp = attr.za_first_integer;
+ zap_cursor_fini(&cursor);
+
+ return (0);
+}
+
int
dmu_dir_list_next(objset_t *os, int namelen, char *name,
uint64_t *idp, uint64_t *offp)
ASSERT(MUTEX_HELD(&os->os_user_ptr_lock));
return (os->os_user_ptr);
}
+
+#if defined(_KERNEL) && defined(HAVE_SPL)
+EXPORT_SYMBOL(dmu_objset_zil);
+EXPORT_SYMBOL(dmu_objset_pool);
+EXPORT_SYMBOL(dmu_objset_ds);
+EXPORT_SYMBOL(dmu_objset_type);
+EXPORT_SYMBOL(dmu_objset_name);
+EXPORT_SYMBOL(dmu_objset_hold);
+EXPORT_SYMBOL(dmu_objset_own);
+EXPORT_SYMBOL(dmu_objset_rele);
+EXPORT_SYMBOL(dmu_objset_disown);
+EXPORT_SYMBOL(dmu_objset_from_ds);
+EXPORT_SYMBOL(dmu_objset_create);
+EXPORT_SYMBOL(dmu_objset_clone);
+EXPORT_SYMBOL(dmu_objset_destroy);
+EXPORT_SYMBOL(dmu_objset_snapshot);
+EXPORT_SYMBOL(dmu_objset_stats);
+EXPORT_SYMBOL(dmu_objset_fast_stat);
+EXPORT_SYMBOL(dmu_objset_spa);
+EXPORT_SYMBOL(dmu_objset_space);
+EXPORT_SYMBOL(dmu_objset_fsid_guid);
+EXPORT_SYMBOL(dmu_objset_find);
+EXPORT_SYMBOL(dmu_objset_find_spa);
+EXPORT_SYMBOL(dmu_objset_prefetch);
+EXPORT_SYMBOL(dmu_objset_byteswap);
+EXPORT_SYMBOL(dmu_objset_evict_dbufs);
+EXPORT_SYMBOL(dmu_objset_snap_cmtime);
+
+EXPORT_SYMBOL(dmu_objset_sync);
+EXPORT_SYMBOL(dmu_objset_is_dirty);
+EXPORT_SYMBOL(dmu_objset_create_impl);
+EXPORT_SYMBOL(dmu_objset_open_impl);
+EXPORT_SYMBOL(dmu_objset_evict);
+EXPORT_SYMBOL(dmu_objset_register_type);
+EXPORT_SYMBOL(dmu_objset_do_userquota_updates);
+EXPORT_SYMBOL(dmu_objset_userquota_get_ids);
+EXPORT_SYMBOL(dmu_objset_userused_enabled);
+EXPORT_SYMBOL(dmu_objset_userspace_upgrade);
+EXPORT_SYMBOL(dmu_objset_userspace_present);
+#endif