fs/btrfs/ioctl.c

604 	struct btrfs_root *new_root;
740 	new_root = btrfs_get_new_fs_root(fs_info, objectid, &anon_dev);
741 	if (IS_ERR(new_root)) {
742 		ret = PTR_ERR(new_root);
746 	/* anon_dev is owned by new_root now. */
748 	BTRFS_I(new_inode_args.inode)->root = new_root;
749 	/* ... and new_root is owned by new_inode_args.inode now. */
751 	ret = btrfs_record_root_in_trans(trans, new_root);
2954 	struct btrfs_root *new_root;
2979 	new_root = btrfs_get_fs_root(fs_info, objectid, true);
2980 	if (IS_ERR(new_root)) {
2981 		ret = PTR_ERR(new_root);
2984 	if (!is_fstree(new_root->root_key.objectid)) {
3013 	btrfs_cpu_key_to_disk(&disk_key, &new_root->root_key);
3021 	btrfs_put_root(new_root);