From 115ce575cb10918514d053ef15f597a4e6ff60e9 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 20 Sep 2012 21:19:43 -0400
Subject: [PATCH] NFSv4.1: pnfs_layout_io_set_failed must clear invalid lsegs

If pnfs_layout_io_test_failed() authorises a retry of the failed layoutgets,
we should clear the existing layout segments so that we start afresh. Do
this in pnfs_layout_io_set_failed().

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