static int
dsl_bookmark_create_check_impl(dsl_dataset_t *snapds, const char *bookmark_name,
dmu_tx_t *tx)
{
dsl_pool_t *dp = dmu_tx_pool(tx);
dsl_dataset_t *bmark_fs;
char *shortname;
int error;
zfs_bookmark_phys_t bmark_phys;
if (!snapds->ds_is_snapshot)
return (SET_ERROR(EINVAL));
error = dsl_bookmark_hold_ds(dp, bookmark_name,
&bmark_fs, FTAG, &shortname);
if (error != 0)
return (error);
if (!dsl_dataset_is_before(bmark_fs, snapds, 0)) {
dsl_dataset_rele(bmark_fs, FTAG);
return (SET_ERROR(EINVAL));
}
error = dsl_dataset_bmark_lookup(bmark_fs, shortname,
&bmark_phys);
dsl_dataset_rele(bmark_fs, FTAG);
if (error == 0)
return (SET_ERROR(EEXIST));
if (error == ESRCH)
return (0);
return (error);
}
int
dsl_get_bookmarks_impl(dsl_dataset_t *ds, nvlist_t *props, nvlist_t *outnvl)
{
int err = 0;
zap_cursor_t zc;
zap_attribute_t attr;
dsl_pool_t *dp = ds->ds_dir->dd_pool;
uint64_t bmark_zapobj = ds->ds_bookmarks;
if (bmark_zapobj == 0)
return (0);
for (zap_cursor_init(&zc, dp->dp_meta_objset, bmark_zapobj);
zap_cursor_retrieve(&zc, &attr) == 0;
zap_cursor_advance(&zc)) {
nvlist_t *out_props;
char *bmark_name = attr.za_name;
zfs_bookmark_phys_t bmark_phys = { 0 };
err = dsl_dataset_bmark_lookup(ds, bmark_name, &bmark_phys);
ASSERT3U(err, !=, ENOENT);
if (err != 0)
break;
out_props = fnvlist_alloc();
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_GUID))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_GUID, bmark_phys.zbm_guid);
}
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_CREATETXG))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_CREATETXG, bmark_phys.zbm_creation_txg);
}
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_CREATION))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_CREATION, bmark_phys.zbm_creation_time);
}
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_IVSET_GUID))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_IVSET_GUID, bmark_phys.zbm_ivset_guid);
}
fnvlist_add_nvlist(outnvl, bmark_name, out_props);
fnvlist_free(out_props);
}
zap_cursor_fini(&zc);
return (err);
}
static int
dsl_bookmark_destroy_check(void *arg, dmu_tx_t *tx)
{
dsl_bookmark_destroy_arg_t *dbda = arg;
dsl_pool_t *dp = dmu_tx_pool(tx);
int rv = 0;
nvpair_t *pair;
if (!spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_BOOKMARKS))
return (0);
for (pair = nvlist_next_nvpair(dbda->dbda_bmarks, NULL);
pair != NULL; pair = nvlist_next_nvpair(dbda->dbda_bmarks, pair)) {
const char *fullname = nvpair_name(pair);
dsl_dataset_t *ds;
zfs_bookmark_phys_t bm;
int error;
char *shortname;
error = dsl_bookmark_hold_ds(dp, fullname, &ds,
FTAG, &shortname);
if (error == ENOENT) {
/* ignore it; the bookmark is "already destroyed" */
continue;
}
if (error == 0) {
error = dsl_dataset_bmark_lookup(ds, shortname, &bm);
dsl_dataset_rele(ds, FTAG);
if (error == ESRCH) {
/*
* ignore it; the bookmark is
* "already destroyed"
*/
continue;
}
}
if (error == 0) {
fnvlist_add_boolean(dbda->dbda_success, fullname);
} else {
fnvlist_add_int32(dbda->dbda_errors, fullname, error);
rv = error;
}
}
return (rv);
}
/*
* If later_ds is non-NULL, this will return EXDEV if the the specified bookmark
* does not represents an earlier point in later_ds's timeline.
*
* Returns ENOENT if the dataset containing the bookmark does not exist.
* Returns ESRCH if the dataset exists but the bookmark was not found in it.
*/
int
dsl_bookmark_lookup(dsl_pool_t *dp, const char *fullname,
dsl_dataset_t *later_ds, zfs_bookmark_phys_t *bmp)
{
char *shortname;
dsl_dataset_t *ds;
int error;
error = dsl_bookmark_hold_ds(dp, fullname, &ds, FTAG, &shortname);
if (error != 0)
return (error);
error = dsl_dataset_bmark_lookup(ds, shortname, bmp);
if (error == 0 && later_ds != NULL) {
if (!dsl_dataset_is_before(later_ds, ds, bmp->zbm_creation_txg))
error = SET_ERROR(EXDEV);
}
dsl_dataset_rele(ds, FTAG);
return (error);
}