From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Wed, 27 Jan 2010 22:07:49 +0000 (+0100)
Subject: perf_events, x86: Remove spurious counter reset from x86_pmu_enable()
X-Git-Tag: v2.6.34-rc1~197^2~76
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18c01f8abff51e4910cc5ffb4b710e8c6eea60c9;p=pandora-kernel.git

perf_events, x86: Remove spurious counter reset from x86_pmu_enable()

At enable time the counter might still have a ->idx pointing to
a previously occupied location that might now be taken by
another event. Resetting the counter at that location with data
from this event will destroy the other counter's count.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <20100127221122.261477183@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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