From 47af81f29556a45493e5c87289c3c16ce911096c Mon Sep 17 00:00:00 2001
From: Peng Tao <tao.peng@primarydata.com>
Date: Mon, 10 Nov 2014 08:35:34 +0800
Subject: [PATCH] nfs: only reset desc->pg_mirror_idx when mirroring is
 supported

so that we don't reset desc->pg_mirror_idx for read unnecessarily.
Remove WARN_ON_ONCE from __nfs_pageio_add_request to allow LD to
set pg_mirror_idx for read where pg_mirror_count is always 1.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
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Reading git-format-patch failed