From: Li Zefan <lizf@cn.fujitsu.com>
Date: Wed, 30 Dec 2009 06:23:40 +0000 (+0800)
Subject: ksym_tracer: Fix race when incrementing count
X-Git-Tag: v2.6.33-rc3~30^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e6d9491bf8ba6728cc86aeabbc688d20ec0563b5;p=pandora-kernel.git

ksym_tracer: Fix race when incrementing count

We are under rcu read section but not holding the write lock, so
count++ is not atomic. Use atomic64_t instead.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B3AF1EC.9010608@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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