From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 23 Oct 2012 17:51:58 +0000 (-0400)
Subject: LOCKD: fix races in nsm_client_get
X-Git-Tag: v3.7-rc3~23^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4ee8d978e47e79d536226dccb48991f70091168;p=pandora-kernel.git

LOCKD: fix races in nsm_client_get

Commit e9406db20fecbfcab646bad157b4cfdc7cadddfb (lockd: per-net
NSM client creation and destruction helpers introduced) contains
a nasty race on initialisation of the per-net NSM client because
it doesn't check whether or not the client is set after grabbing
the nsm_create_mutex.

Reported-by: Nix <nix@esperi.org.uk>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
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