__btrfs_free_reserved_extent 4180 fs/btrfs/extent-tree.c 	return __btrfs_free_reserved_extent(fs_info, start, len, 0, delalloc);
__btrfs_free_reserved_extent 4186 fs/btrfs/extent-tree.c 	return __btrfs_free_reserved_extent(fs_info, start, len, 1, 0);