From 3e6212149304eaf9289d5bc56e003068660f3476 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 24 Sep 2012 13:07:16 -0400
Subject: [PATCH] NFSv4.1: Don't drop the pnfs_layout_hdr after a layoutget
 failure

We want to cache the pnfs_layout_hdr after a layoutget or i/o
failure so that pnfs_update_layout() can find it and know when
it is time to retry.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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