Re: [PATCH v6 12/13] xfs: commit CoW-based atomic writes atomically

[Christoph Hellwig]

>  		trace_xfs_reflink_end_cow_error(ip, error, _RET_IP_);
>  	return error;
>  }
> +int

Still a missing empty line after the previous function.   Also
please add a comment what is atomic about this function and why
the regular path doesn't use it.