xprtrmda: Reduce lock contention in completion handlers
authorChuck Lever <chuck.lever@oracle.com>
Wed, 28 May 2014 14:33:34 +0000 (10:33 -0400)
committerAnna Schumaker <Anna.Schumaker@Netapp.com>
Wed, 4 Jun 2014 12:56:43 +0000 (08:56 -0400)
Skip the ib_poll_cq() after re-arming, if the provider knows there
are no additional items waiting. (Have a look at commit ed23a727 for
more details).

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
net/sunrpc/xprtrdma/verbs.c

Simple merge