From: Chuck Lever <chuck.lever@oracle.com>
Date: Wed, 28 May 2014 14:33:51 +0000 (-0400)
Subject: xprtrdma: Limit work done by completion handler
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~64^2~5^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8301a2c047cc;p=pandora-kernel.git

xprtrdma: Limit work done by completion handler

Sagi Grimberg <sagig@dev.mellanox.co.il> points out that a steady
stream of CQ events could starve other work because of the boundless
loop pooling in rpcrdma_{send,recv}_poll().

Instead of a (potentially infinite) while loop, return after
collecting a budgeted number of completions.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Sagi Grimberg <sagig@dev.mellanox.co.il>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---

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