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Date:   Wed, 3 Mar 2021 10:31:20 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Shiyang Ruan <ruansy.fnst@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
Subject: Re: [PATCH v2 06/10] fsdax: Add dax_iomap_cow_copy() for
 dax_iomap_zero
Message-ID: <20210303093120.GF12784@lst.de>
References: <20210226002030.653855-1-ruansy.fnst@fujitsu.com> <20210226002030.653855-7-ruansy.fnst@fujitsu.com>
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On Fri, Feb 26, 2021 at 08:20:26AM +0800, Shiyang Ruan wrote:
> Punch hole on a reflinked file needs dax_copy_edge() too.  Otherwise,
> data in not aligned area will be not correct.  So, add the srcmap to
> dax_iomap_zero() and replace memset() as dax_copy_edge().
> 
> Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>

Looks good,

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