int
dsl_destroy_snapshot_check(void *arg, dmu_tx_t *tx)
{
dsl_destroy_snapshot_arg_t *ddsa = arg;
const char *dsname = ddsa->ddsa_name;
boolean_t defer = ddsa->ddsa_defer;
dsl_pool_t *dp = dmu_tx_pool(tx);
int error = 0;
dsl_dataset_t *ds;
error = dsl_dataset_hold(dp, dsname, FTAG, &ds);
/*
* If the snapshot does not exist, silently ignore it, and
* dsl_destroy_snapshot_sync() will be a no-op
* (it's "already destroyed").
*/
if (error == ENOENT)
return (0);
if (error == 0) {
error = dsl_destroy_snapshot_check_impl(ds, defer);
dsl_dataset_rele(ds, FTAG);
}
return (error);
}
static int
dsl_destroy_snapshot_check(void *arg, dmu_tx_t *tx)
{
dmu_snapshots_destroy_arg_t *dsda = arg;
dsl_pool_t *dp = dmu_tx_pool(tx);
nvpair_t *pair;
int error = 0;
if (!dmu_tx_is_syncing(tx))
return (0);
for (pair = nvlist_next_nvpair(dsda->dsda_snaps, NULL);
pair != NULL; pair = nvlist_next_nvpair(dsda->dsda_snaps, pair)) {
dsl_dataset_t *ds;
error = dsl_dataset_hold(dp, nvpair_name(pair),
FTAG, &ds);
/*
* If the snapshot does not exist, silently ignore it
* (it's "already destroyed").
*/
if (error == ENOENT)
continue;
if (error == 0) {
error = dsl_destroy_snapshot_check_impl(ds,
dsda->dsda_defer);
dsl_dataset_rele(ds, FTAG);
}
if (error == 0) {
fnvlist_add_boolean(dsda->dsda_successful_snaps,
nvpair_name(pair));
} else {
fnvlist_add_int32(dsda->dsda_errlist,
nvpair_name(pair), error);
}
}
pair = nvlist_next_nvpair(dsda->dsda_errlist, NULL);
if (pair != NULL)
return (fnvpair_value_int32(pair));
return (0);
}
