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Date: Mon, 18 Mar 2013 15:11:52 +0800
From: chenditang <chendt.fnst@cn.fujitsu.com>
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To: bhalevy@tonian.com
CC: linux-nfs@vger.kernel.org, LINE <fnst-xmlinux@cn.fujitsu.com>
Subject: pnfs: WRITE operation will not send LAYOUTCOMMI OP to MDS if use
 filelayout
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Sender: linux-nfs-owner@vger.kernel.org
List-ID: <linux-nfs.vger.kernel.org>

In the recent pnfs kernel versions, WRITE operation will not send
LAYOUTCOMMI OP to MDS if use filelayout.

In nfs_write_rpcsetup function, the value of the variable 'stable' will
always be NFS_FILE_SYNC(ncommit is 0). so NFS_INO_LAYOUTCOMMIT 
flag will not be set.

The value of the variable ncommit' will be ++ in the later process
(nfs_writeback_release_common function).


Thanks!