Re: [PATCH v21 08/30] splice: Make splice from a DAX file use copy_splice_read()

Gao Xiang
2023-05-21T14:55:41Z

On 2023/5/20 17:00, David Howells wrote:
> Make a read splice from a DAX file go directly to copy_splice_read() to do
> the reading as filemap_splice_read() is unlikely to find any pagecache to
> splice.
>
> I think this affects only erofs, Ext2, Ext4, fuse and XFS.
>
> Signed-off-by: David Howells <dhowells@redhat.com>
> cc: Christoph Hellwig <hch@lst.de>
> cc: Al Viro <viro@zeniv.linux.org.uk>
> cc: Jens Axboe <axboe@kernel.dk>
> cc: linux-erofs@lists.ozlabs.org
> cc: linux-ext4@vger.kernel.org
> cc: linux-xfs@vger.kernel.org
> cc: linux-fsdevel@vger.kernel.org
> cc: linux-block@vger.kernel.org
> cc: linux-mm@kvack.org

Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>

Thanks,
Gao Xiang