- /*
- * Free everything that we point to (that's born after
- * the previous snapshot, if we are a clone)
- *
- * NB: this should be very quick, because we already
- * freed all the objects in open context.
- */
- ka.ds = ds;
- ka.tx = tx;
- err = traverse_dataset(ds, ds->ds_phys->ds_prev_snap_txg,
- TRAVERSE_POST, kill_blkptr, &ka);
- ASSERT3U(err, ==, 0);
- ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) ||
- ds->ds_phys->ds_unique_bytes == 0);
+ VERIFY3U(0, ==, dmu_objset_from_ds(ds, &os));
+
+ if (!spa_feature_is_enabled(dp->dp_spa, async_destroy)) {
+ err = old_synchronous_dataset_destroy(ds, tx);
+ } else {
+ /*
+ * Move the bptree into the pool's list of trees to
+ * clean up and update space accounting information.
+ */
+ uint64_t used, comp, uncomp;
+
+ zil_destroy_sync(dmu_objset_zil(os), tx);
+
+ if (!spa_feature_is_active(dp->dp_spa, async_destroy)) {
+ spa_feature_incr(dp->dp_spa, async_destroy, tx);
+ dp->dp_bptree_obj = bptree_alloc(mos, tx);
+ VERIFY(zap_add(mos,
+ DMU_POOL_DIRECTORY_OBJECT,
+ DMU_POOL_BPTREE_OBJ, sizeof (uint64_t), 1,
+ &dp->dp_bptree_obj, tx) == 0);
+ }
+
+ used = ds->ds_dir->dd_phys->dd_used_bytes;
+ comp = ds->ds_dir->dd_phys->dd_compressed_bytes;
+ uncomp = ds->ds_dir->dd_phys->dd_uncompressed_bytes;
+
+ ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) ||
+ ds->ds_phys->ds_unique_bytes == used);
+
+ bptree_add(mos, dp->dp_bptree_obj,
+ &ds->ds_phys->ds_bp, ds->ds_phys->ds_prev_snap_txg,
+ used, comp, uncomp, tx);
+ dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD,
+ -used, -comp, -uncomp, tx);
+ dsl_dir_diduse_space(dp->dp_free_dir, DD_USED_HEAD,
+ used, comp, uncomp, tx);
+ }