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Date:   Mon, 8 Feb 2021 16:11:56 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Shiyang Ruan <ruansy.fnst@cn.fujitsu.com>
Cc:     linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
        linux-nvdimm@lists.01.org, linux-fsdevel@vger.kernel.org,
        darrick.wong@oracle.com, dan.j.williams@intel.com,
        willy@infradead.org, jack@suse.cz, viro@zeniv.linux.org.uk,
        linux-btrfs@vger.kernel.org, ocfs2-devel@oss.oracle.com,
        david@fromorbit.com, hch@lst.de, rgoldwyn@suse.de,
        Goldwyn Rodrigues <rgoldwyn@suse.com>
Subject: Re: [PATCH 2/7] fsdax: Introduce dax_copy_edges() for CoW
Message-ID: <20210208151156.GB12872@lst.de>
References: <20210207170924.2933035-1-ruansy.fnst@cn.fujitsu.com> <20210207170924.2933035-3-ruansy.fnst@cn.fujitsu.com>
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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.