From 6f29b9bba7b08c6b1d6f2cc4cf750b342fc1946c Mon Sep 17 00:00:00 2001
From: Kinglong Mee <kinglongmee@gmail.com>
Date: Sun, 20 Sep 2015 23:03:28 +0800
Subject: [PATCH] NFS: Do cleanup before resetting pageio read/write to mds

There is a reference leak of layout segment after resetting
pageio read/write to mds.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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