80 	struct btrfs_root *parent_root;  member
293 		  (sctx->parent_root ?  in inconsistent_snapshot_error()
294 		   sctx->parent_root->root_key.objectid : 0));  in inconsistent_snapshot_error()
306 	return (sctx->parent_root && !sctx->cur_inode_new &&  in need_send_hole()
1551 		if (!sctx->parent_root) {  in gen_unique_name()
1557 		di = btrfs_lookup_dir_item(NULL, sctx->parent_root,  in gen_unique_name()
1603 	if (!sctx->parent_root) {  in get_cur_inode_state()
1606 		ret = get_inode_info(sctx->parent_root, ino, NULL, &right_gen,  in get_cur_inode_state()
1835 	if (!sctx->parent_root)  in will_overwrite_ref()
1847 	if (sctx->parent_root && dir != BTRFS_FIRST_FREE_OBJECTID) {  in will_overwrite_ref()
1848 		ret = get_inode_info(sctx->parent_root, dir, NULL, &gen, NULL,  in will_overwrite_ref()
1860 	ret = lookup_dir_item_inode(sctx->parent_root, dir, name, name_len,  in will_overwrite_ref()
1876 		ret = get_inode_info(sctx->parent_root, other_inode, NULL,  in will_overwrite_ref()
1908 	if (!sctx->parent_root)  in did_overwrite_ref()
1978 	if (!sctx->parent_root)  in did_overwrite_first_ref()
1985 	ret = get_first_ref(sctx->parent_root, ino, &dir, &dir_gen, name);  in did_overwrite_first_ref()
2182 		ret = get_first_ref(sctx->parent_root, ino,  in __get_cur_name_and_parent()
2296 			ret = get_first_ref(sctx->parent_root, ino,  in get_cur_path()
2331 	struct btrfs_root *parent_root = sctx->parent_root;  in send_subvol_begin()  local
2374 	if (parent_root) {  in send_subvol_begin()
2395 	if (parent_root) {  in send_subvol_begin()
2396 		if (!btrfs_is_empty_uuid(parent_root->root_item.received_uuid))  in send_subvol_begin()
2398 				     parent_root->root_item.received_uuid);  in send_subvol_begin()
2401 				     parent_root->root_item.uuid);  in send_subvol_begin()
2403 			    le64_to_cpu(sctx->parent_root->root_item.ctransid));  in send_subvol_begin()
2916 	struct btrfs_root *root = sctx->parent_root;  in can_rmdir()
3172 			ret = get_first_ref(sctx->parent_root, ino,  in path_loop()
3228 		ret = get_first_ref(sctx->parent_root, pm->ino,  in apply_dir_move()
3435 	struct btrfs_fs_info *fs_info = sctx->parent_root->fs_info;  in wait_for_dest_dir_move()
3456 	ret = btrfs_search_slot(NULL, sctx->parent_root, &key, path, 0, 0);  in wait_for_dest_dir_move()
3484 	ret = get_inode_info(sctx->parent_root, di_key.objectid, NULL,  in wait_for_dest_dir_move()
3691 			ret = is_ancestor(sctx->parent_root,  in wait_for_parent_move()
3705 		ret = get_first_ref(sctx->parent_root, ino, &parent_ino_before,  in wait_for_parent_move()
3721 			ret = get_inode_info(sctx->parent_root, ino, NULL,  in wait_for_parent_move()
3905 			ret = is_first_ref(sctx->parent_root,  in process_recorded_refs()
3957 				ret = is_ancestor(sctx->parent_root,  in process_recorded_refs()
3976 		if (S_ISDIR(sctx->cur_inode_mode) && sctx->parent_root) {  in process_recorded_refs()
3986 		if (S_ISDIR(sctx->cur_inode_mode) && sctx->parent_root &&  in process_recorded_refs()
4233 	return record_ref(sctx->parent_root, dir, name, ctx,  in __record_deleted_ref()
4255 	ret = iterate_inode_ref(sctx->parent_root, sctx->right_path,  in record_deleted_ref()
4336 	ret = find_iref(sctx->parent_root, sctx->right_path,  in __record_changed_new_ref()
4354 	ret = get_inode_info(sctx->parent_root, dir, NULL, &dir_gen, NULL,  in __record_changed_deleted_ref()
4377 	ret = iterate_inode_ref(sctx->parent_root, sctx->right_path,  in record_changed_ref()
4412 		root = sctx->parent_root;  in process_all_refs()
4585 	return iterate_dir_item(sctx->parent_root, sctx->right_path,  in process_deleted_xattr()
4657 	ret = find_xattr(sctx->parent_root, sctx->right_path,  in __process_changed_new_xattr()
4704 	ret = iterate_dir_item(sctx->parent_root, sctx->right_path,  in process_changed_xattr()
5352 	ret = btrfs_search_slot_for_read(sctx->parent_root, &key, path, 0, 0);  in is_extent_unchanged()
5442 		ret = btrfs_next_item(sctx->parent_root, path);  in is_extent_unchanged()
5527 	struct btrfs_root *root = sctx->parent_root;  in range_is_hole_in_parent()
5664 	if (sctx->parent_root && !sctx->cur_inode_new) {  in process_extent()
5842 	if (!sctx->parent_root || sctx->cur_inode_new) {  in finish_inode_if_needed()
5851 		ret = get_inode_info(sctx->parent_root, sctx->cur_ino,  in finish_inode_if_needed()
5940 	return record_ref(ppctx->sctx->parent_root, dir, name, ppctx->sctx,  in record_parent_ref()
5963 	ret = btrfs_search_slot(NULL, sctx->parent_root, &key, path, 0, 0);  in btrfs_unlink_all_paths()
5975 			ret = btrfs_next_leaf(sctx->parent_root, path);  in btrfs_unlink_all_paths()
5990 		ret = iterate_inode_ref(sctx->parent_root, path, &key, 1,  in btrfs_unlink_all_paths()
6346 	ret = get_inode_info(sctx->parent_root, dir, NULL, &orig_gen, NULL,  in dir_changed()
6517 	if (sctx->parent_root) {  in send_subvol()
6518 		ret = btrfs_compare_trees(sctx->send_root, sctx->parent_root,  in send_subvol()
6555 	if (sctx->parent_root &&  in ensure_commit_roots_uptodate()
6556 	    sctx->parent_root->node != sctx->parent_root->commit_root)  in ensure_commit_roots_uptodate()
6764 	if (arg->parent_root) {  in btrfs_ioctl_send()
6765 		key.objectid = arg->parent_root;  in btrfs_ioctl_send()
6771 		sctx->parent_root = btrfs_read_fs_root_no_name(fs_info, &key);  in btrfs_ioctl_send()
6772 		if (IS_ERR(sctx->parent_root)) {  in btrfs_ioctl_send()
6774 			ret = PTR_ERR(sctx->parent_root);  in btrfs_ioctl_send()
6778 		spin_lock(&sctx->parent_root->root_item_lock);  in btrfs_ioctl_send()
6779 		sctx->parent_root->send_in_progress++;  in btrfs_ioctl_send()
6780 		if (!btrfs_root_readonly(sctx->parent_root) ||  in btrfs_ioctl_send()
6781 				btrfs_root_dead(sctx->parent_root)) {  in btrfs_ioctl_send()
6782 			spin_unlock(&sctx->parent_root->root_item_lock);  in btrfs_ioctl_send()
6787 		spin_unlock(&sctx->parent_root->root_item_lock);  in btrfs_ioctl_send()
6874 	if (sctx && !IS_ERR_OR_NULL(sctx->parent_root))  in btrfs_ioctl_send()
6875 		btrfs_root_dec_send_in_progress(sctx->parent_root);  in btrfs_ioctl_send()