From 965938b83b19aeffdc1d16ce9947c8c127e8f59b Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 20 Sep 2012 15:07:45 -0400
Subject: [PATCH] NFSv4.1: Get rid of pNFS layout state "NFS_LAYOUT_INVALID"

In all cases where we set NFS_LAYOUT_INVALID, we also set NFS_LAYOUT_DESTROYED.
Furthermore, in all cases where we test for NFS_LAYOUT_INVALID, we should
also be testing for NFS_LAYOUT_DESTROYED, since the latter means that
we hold no valid layout segments.
Ergo the two are redundant.

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