__btrfs_wait_cache_io 1215 fs/btrfs/free-space-cache.c 	return __btrfs_wait_cache_io(root, trans, NULL, io_ctl, path, 0);
__btrfs_wait_cache_io 1222 fs/btrfs/free-space-cache.c 	return __btrfs_wait_cache_io(block_group->fs_info->tree_root, trans,