From: Christoph Hellwig <hch@lst.de>
Date: Fri, 26 Sep 2014 14:02:50 +0000 (+0200)
Subject: pnfs/blocklayout: serialize GETDEVICEINFO calls
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~109^2~10
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0d4ed71ca0344494722a041780f004d2bcf0f11;p=pandora-kernel.git

pnfs/blocklayout: serialize GETDEVICEINFO calls

The rpc_pipefs code isn't thread safe, leading to occasional use after
frees when running xfstests generic/241 (dbench).

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/1411740170-18611-2-git-send-email-hch@lst.de
Cc: stable@vger.kernel.org # 3.17.x
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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