95 	struct btrfs_root *parent_root;  member
284 	return (sctx->parent_root && !sctx->cur_inode_new &&  in need_send_hole()
1536 		if (!sctx->parent_root) {  in gen_unique_name()
1542 		di = btrfs_lookup_dir_item(NULL, sctx->parent_root,  in gen_unique_name()
1588 	if (!sctx->parent_root) {  in get_cur_inode_state()
1591 		ret = get_inode_info(sctx->parent_root, ino, NULL, &right_gen,  in get_cur_inode_state()
1817 	if (!sctx->parent_root)  in will_overwrite_ref()
1829 	if (sctx->parent_root) {  in will_overwrite_ref()
1830 		ret = get_inode_info(sctx->parent_root, dir, NULL, &gen, NULL,  in will_overwrite_ref()
1842 	ret = lookup_dir_item_inode(sctx->parent_root, dir, name, name_len,  in will_overwrite_ref()
1857 		ret = get_inode_info(sctx->parent_root, other_inode, NULL,  in will_overwrite_ref()
1889 	if (!sctx->parent_root)  in did_overwrite_ref()
1939 	if (!sctx->parent_root)  in did_overwrite_first_ref()
1946 	ret = get_first_ref(sctx->parent_root, ino, &dir, &dir_gen, name);  in did_overwrite_first_ref()
2143 		ret = get_first_ref(sctx->parent_root, ino,  in __get_cur_name_and_parent()
2251 			ret = get_first_ref(sctx->parent_root, ino,  in get_cur_path()
2286 	struct btrfs_root *parent_root = sctx->parent_root;  in send_subvol_begin()  local
2329 	if (parent_root) {  in send_subvol_begin()
2344 	if (parent_root) {  in send_subvol_begin()
2346 				sctx->parent_root->root_item.uuid);  in send_subvol_begin()
2348 			    le64_to_cpu(sctx->parent_root->root_item.ctransid));  in send_subvol_begin()
2858 	struct btrfs_root *root = sctx->parent_root;  in can_rmdir()
3112 		ret = get_first_ref(sctx->parent_root, pm->ino,  in apply_dir_move()
3308 	ret = btrfs_search_slot(NULL, sctx->parent_root, &key, path, 0, 0);  in wait_for_dest_dir_move()
3316 	di = btrfs_match_dir_item_name(sctx->parent_root, path,  in wait_for_dest_dir_move()
3336 	ret = get_inode_info(sctx->parent_root, di_key.objectid, NULL,  in wait_for_dest_dir_move()
3406 		ret = get_first_ref(sctx->parent_root, ino, &parent_ino_before,  in wait_for_parent_move()
3562 			ret = is_first_ref(sctx->parent_root,  in process_recorded_refs()
3596 		if (S_ISDIR(sctx->cur_inode_mode) && sctx->parent_root) {  in process_recorded_refs()
3826 	return record_ref(sctx->parent_root, num, dir, index, name,  in __record_deleted_ref()
3848 	ret = iterate_inode_ref(sctx->parent_root, sctx->right_path,  in record_deleted_ref()
3929 	ret = find_iref(sctx->parent_root, sctx->right_path,  in __record_changed_new_ref()
3947 	ret = get_inode_info(sctx->parent_root, dir, NULL, &dir_gen, NULL,  in __record_changed_deleted_ref()
3970 	ret = iterate_inode_ref(sctx->parent_root, sctx->right_path,  in record_changed_ref()
4005 		root = sctx->parent_root;  in process_all_refs()
4178 	ret = iterate_dir_item(sctx->parent_root, sctx->right_path,  in process_deleted_xattr()
4252 	ret = find_xattr(sctx->parent_root, sctx->right_path,  in __process_changed_new_xattr()
4299 	ret = iterate_dir_item(sctx->parent_root, sctx->right_path,  in process_changed_xattr()
4731 	ret = btrfs_search_slot_for_read(sctx->parent_root, &key, path, 0, 0);  in is_extent_unchanged()
4801 		ret = btrfs_next_item(sctx->parent_root, path);  in is_extent_unchanged()
4941 	if (sctx->parent_root && !sctx->cur_inode_new) {  in process_extent()
5115 	if (!sctx->parent_root || sctx->cur_inode_new) {  in finish_inode_if_needed()
5120 		ret = get_inode_info(sctx->parent_root, sctx->cur_ino,  in finish_inode_if_needed()
5425 	ret = get_inode_info(sctx->parent_root, dir, NULL, &orig_gen, NULL,  in dir_changed()
5601 	if (sctx->parent_root) {  in send_subvol()
5602 		ret = btrfs_compare_trees(sctx->send_root, sctx->parent_root,  in send_subvol()
5639 	if (sctx->parent_root &&  in ensure_commit_roots_uptodate()
5640 	    sctx->parent_root->node != sctx->parent_root->commit_root)  in ensure_commit_roots_uptodate()
5846 	if (arg->parent_root) {  in btrfs_ioctl_send()
5847 		key.objectid = arg->parent_root;  in btrfs_ioctl_send()
5853 		sctx->parent_root = btrfs_read_fs_root_no_name(fs_info, &key);  in btrfs_ioctl_send()
5854 		if (IS_ERR(sctx->parent_root)) {  in btrfs_ioctl_send()
5856 			ret = PTR_ERR(sctx->parent_root);  in btrfs_ioctl_send()
5860 		spin_lock(&sctx->parent_root->root_item_lock);  in btrfs_ioctl_send()
5861 		sctx->parent_root->send_in_progress++;  in btrfs_ioctl_send()
5862 		if (!btrfs_root_readonly(sctx->parent_root) ||  in btrfs_ioctl_send()
5863 				btrfs_root_dead(sctx->parent_root)) {  in btrfs_ioctl_send()
5864 			spin_unlock(&sctx->parent_root->root_item_lock);  in btrfs_ioctl_send()
5869 		spin_unlock(&sctx->parent_root->root_item_lock);  in btrfs_ioctl_send()
5956 	if (sctx && !IS_ERR_OR_NULL(sctx->parent_root))  in btrfs_ioctl_send()
5957 		btrfs_root_dec_send_in_progress(sctx->parent_root);  in btrfs_ioctl_send()