Re: [PATCH v2 04/10] fsdax: Introduce dax_iomap_cow_copy()

[Christoph Hellwig]

On Fri, Feb 26, 2021 at 08:20:24AM +0800, Shiyang Ruan wrote:
> +     if (!copy_edge) {
> +             ret = copy_mc_to_kernel(daddr, saddr, length);
> +             return ret;

No need for the ret variable here, this can be:

        if (!copy_edge)
                return copy_mc_to_kernel(daddr, saddr, length);

Otherwise looks good:

Reviewed-by: Christoph Hellwig <h...@lst.de>