btrfs_free_extent
ret = btrfs_free_extent(trans, &ref);
ret = btrfs_free_extent(trans, &ref);
return btrfs_free_extent(trans, &ref);
int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref);
ret = btrfs_free_extent(trans, &ref);
ret = btrfs_free_extent(trans, &ref);
ret = btrfs_free_extent(trans, &ref);
ret = btrfs_free_extent(trans, &ref);
ret = btrfs_free_extent(trans, &ref);
ret = btrfs_free_extent(trans, &ref);
ret = btrfs_free_extent(trans, &ref);