From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 6 Apr 2009 09:45:12 +0000 (+0200)
Subject: perf_counter: remove rq->lock usage
X-Git-Tag: v2.6.31-rc1~383^2~394
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=849691a6cd40270ff5f4a8846d5f6bf8df663ffc;p=pandora-kernel.git

perf_counter: remove rq->lock usage

Now that all the task runtime clock users are gone, remove the ugly
rq->lock usage from perf counters, which solves the nasty deadlock
seen when a software task clock counter was read from an NMI overflow
context.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090406094518.531137582@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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