From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 29 Jul 2014 21:24:19 +0000 (-0400)
Subject: xprtrdma: Back off rkey when FAST_REG_MR fails
X-Git-Tag: cleanup-for-v3.18~41^2~24^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c93e986a295d537589efd0504f36ca952bd1a5be;p=pandora-kernel.git

xprtrdma: Back off rkey when FAST_REG_MR fails

If posting a FAST_REG_MR Work Reqeust fails, revert the rkey update
to avoid subsequent IB_WC_MW_BIND_ERR completions.

Suggested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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