btrfs_wait_cache_io_root 38 fs/btrfs/free-space-cache.c static int btrfs_wait_cache_io_root(struct btrfs_root *root, btrfs_wait_cache_io_root 3575 fs/btrfs/free-space-cache.c ret = btrfs_wait_cache_io_root(root, trans, &io_ctl, path);