From 0c9d42ed4cee2aa1dfc3a260b741baae8615744f Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Sun, 20 Nov 2011 23:30:47 +0100
Subject: perf, x86: Provide means for disabling userspace RDPMC

Allow the disabling of RDPMC via a pmu specific attribute:

  echo 0 > /sys/bus/event_source/devices/cpu/rdpmc

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Arun Sharma <asharma@fb.com>
Link: http://lkml.kernel.org/n/tip-pqeog465zo5hsimtkfz73f27@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 kernel/events/core.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'kernel/events')

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 05affc3..dcd4049e 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5505,6 +5505,7 @@ static int pmu_dev_alloc(struct pmu *pmu)
 	if (!pmu->dev)
 		goto out;
 
+	pmu->dev->groups = pmu->attr_groups;
 	device_initialize(pmu->dev);
 	ret = dev_set_name(pmu->dev, "%s", pmu->name);
 	if (ret)
-- 
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