343 		ASSERT3U(ds->ds_prev->ds_object, ==,  in dsl_dataset_block_kill()
345 		ASSERT(dsl_dataset_phys(ds->ds_prev)->ds_num_children > 0);  in dsl_dataset_block_kill()
347 		if (dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj ==  in dsl_dataset_block_kill()
349 		    dsl_dataset_phys(ds->ds_prev)->ds_prev_snap_txg) {  in dsl_dataset_block_kill()
350 			dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx);  in dsl_dataset_block_kill()
351 			mutex_enter(&ds->ds_prev->ds_lock);  in dsl_dataset_block_kill()
352 			dsl_dataset_phys(ds->ds_prev)->ds_unique_bytes += used;  in dsl_dataset_block_kill()
353 			mutex_exit(&ds->ds_prev->ds_lock);  in dsl_dataset_block_kill()
469 	if (ds->ds_prev) {  in dsl_dataset_evict_async()
470 		dsl_dataset_rele(ds->ds_prev, ds);  in dsl_dataset_evict_async()
471 		ds->ds_prev = NULL;  in dsl_dataset_evict_async()
668 				    ds, &ds->ds_prev);  in dsl_dataset_hold_obj()
730 			if (ds->ds_prev)  in dsl_dataset_hold_obj()
731 				dsl_dataset_rele(ds->ds_prev, ds);  in dsl_dataset_hold_obj()
1402 		mrs_used = dsl_dataset_phys(ds->ds_prev)->ds_referenced_bytes;  in dsl_dataset_recalc_head_uniq()
1791 	ASSERT3U(ds->ds_prev != 0, ==,  in dsl_dataset_snapshot_sync_impl()
1793 	if (ds->ds_prev) {  in dsl_dataset_snapshot_sync_impl()
1795 		    dsl_dataset_phys(ds->ds_prev)->ds_next_clones_obj;  in dsl_dataset_snapshot_sync_impl()
1796 		ASSERT(dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj ==  in dsl_dataset_snapshot_sync_impl()
1798 		    dsl_dataset_phys(ds->ds_prev)->ds_num_children > 1);  in dsl_dataset_snapshot_sync_impl()
1799 		if (dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj ==  in dsl_dataset_snapshot_sync_impl()
1801 			dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx);  in dsl_dataset_snapshot_sync_impl()
1803 			    dsl_dataset_phys(ds->ds_prev)->ds_creation_txg);  in dsl_dataset_snapshot_sync_impl()
1804 			dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj = dsobj;  in dsl_dataset_snapshot_sync_impl()
1806 			dsl_dataset_remove_from_next_clones(ds->ds_prev,  in dsl_dataset_snapshot_sync_impl()
1889 	if (ds->ds_prev)  in dsl_dataset_snapshot_sync_impl()
1890 		dsl_dataset_rele(ds->ds_prev, ds);  in dsl_dataset_snapshot_sync_impl()
1892 	    dsl_dataset_phys(ds)->ds_prev_snap_obj, ds, &ds->ds_prev));  in dsl_dataset_snapshot_sync_impl()
1899 		spa_history_log_internal_ds(ds->ds_prev, "snapshot", tx, " ");  in dsl_dataset_snapshot_sync_impl()
1922 			dsl_props_set_sync_impl(ds->ds_prev,  in dsl_dataset_snapshot_sync()
2062 	dsl_dataset_user_hold_sync_one(ds->ds_prev, ddsta->ddsta_htag,  in dsl_dataset_snapshot_tmp_sync()
2064 	dsl_destroy_snapshot_sync_impl(ds->ds_prev, B_TRUE, tx);  in dsl_dataset_snapshot_tmp_sync()
2695 	if (ds->ds_prev != NULL && ds->ds_prev != dp->dp_origin_snap) {  in dsl_get_prev_snap()
2696 		dsl_dataset_name(ds->ds_prev, snap);  in dsl_get_prev_snap()
3193 		if (snapds != ds->ds_prev) {  in dsl_dataset_rollback_check()
3232 	    dsl_dataset_phys(ds->ds_prev)->ds_referenced_bytes > ds->ds_quota) {  in dsl_dataset_rollback_check()
3269 	dsl_dataset_name(ds->ds_prev, namebuf);  in dsl_dataset_rollback_sync()
3273 	    ds->ds_prev, DS_CREATE_FLAG_NODIRTY, kcred, NULL, tx);  in dsl_dataset_rollback_sync()
3974 	if (!force && clone->ds_prev != origin_head->ds_prev)  in dsl_dataset_clone_swap_check_impl()
3978 	if (clone->ds_prev != NULL &&  in dsl_dataset_clone_swap_check_impl()
3979 	    clone->ds_prev != clone->ds_dir->dd_pool->dp_origin_snap &&  in dsl_dataset_clone_swap_check_impl()
3980 	    origin_head->ds_dir != clone->ds_prev->ds_dir)  in dsl_dataset_clone_swap_check_impl()
3989 	    dsl_dataset_modified_since_snap(origin_head, origin_head->ds_prev))  in dsl_dataset_clone_swap_check_impl()
4079 	ASSERT3P(clone->ds_prev, ==, origin_head->ds_prev);  in dsl_dataset_clone_swap_sync_impl()
4140 		dsl_dataset_t *origin = clone->ds_prev;  in dsl_dataset_clone_swap_sync_impl()
4241 	dsl_bookmark_next_changed(origin_head, origin_head->ds_prev, tx);  in dsl_dataset_clone_swap_sync_impl()