From 96c9eae638765c2bf2ca4f5a6325484f9bb69aa7 Mon Sep 17 00:00:00 2001
From: Peng Tao <bergwolf@gmail.com>
Date: Fri, 24 Aug 2012 00:27:53 +0800
Subject: [PATCH] pnfsblock: fix non-aligned DIO write

For DIO writes, if it is not blocksize aligned, we need to do
internal serialization. It may slow down writers anyway. So we
just bail them out and resend to MDS.

Cc: stable <stable@vger.kernel.org> [since v3.4]
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
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