From 5521abfdcf4d67c3441d4414f29e1acd7cc43380 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Sat, 16 Mar 2013 20:54:34 -0400
Subject: [PATCH] NFSv4: Resend the READ/WRITE RPC call if a stateid change
 causes an error

Adds logic to ensure that if the server returns a BAD_STATEID,
or other state related error, then we check if the stateid has
already changed. If it has, then rather than start state recovery,
we should just resend the failed RPC call with the new stateid.

Allow nfs4_select_rw_stateid to notify that the stateid is unstable by
having it return -EWOULDBLOCK if an RPC is underway that might change the
stateid.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Reading git-format-patch failed