From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 1 May 2009 10:23:17 +0000 (+0200)
Subject: perf_counter: fix nmi-watchdog interaction
X-Git-Tag: v2.6.31-rc1~383^2~316
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63a809a2dc53b91268dd915bbcbd425063893676;p=pandora-kernel.git

perf_counter: fix nmi-watchdog interaction

When we don't have any perf-counters active, don't act like we know
what the NMI is for.

[ Impact: fix hard hang with nmi_watchdog=2 ]

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: <20090501102533.109867793@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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