linux-kernel - Re: [PATCH 2/7] fsdax: Introduce dax_copy

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Message-ID: <20210208151156.GB12872@lst.de>
Date:   Mon, 8 Feb 2021 16:11:56 +0100
From:   Christoph Hellwig <hch@....de>
To:     Shiyang Ruan <ruansy.fnst@...fujitsu.com>
Cc:     linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-nvdimm@...ts.01.org, linux-fsdevel@...r.kernel.org,
        darrick.wong@...cle.com, dan.j.williams@...el.com,
        willy@...radead.org, jack@...e.cz, viro@...iv.linux.org.uk,
        linux-btrfs@...r.kernel.org, ocfs2-devel@....oracle.com,
        david@...morbit.com, hch@....de, rgoldwyn@...e.de,
        Goldwyn Rodrigues <rgoldwyn@...e.com>
Subject: Re: [PATCH 2/7] fsdax: Introduce dax_copy_edges() for CoW

On Mon, Feb 08, 2021 at 01:09:19AM +0800, Shiyang Ruan wrote:
> dax_copy_edges() is a helper functions performs a copy from one part of
> the device to another for data not page aligned.

The function looks good to me, but adding a static function without a
user is not very bisection friendly.