[29/29] perf: Honour event state for aux stream data

[Greg KH]

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>

commit 22e190851f8709c48baf00ed9ce6144cdc54d025 upstream.

Anton reported that perf record kept receiving events even after calling
ioctl(PERF_EVENT_IOC_DISABLE). It turns out that FORK,COMM and MMAP
events didn't respect the disabled state and kept flowing in.

Reported-by: Anton Blanchard <anton@xxxxxxxxx>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Tested-by: Anton Blanchard <anton@xxxxxxxxx>
LKML-Reference: <1263459187.4244.265.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 kernel/perf_event.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3229,6 +3229,9 @@ static void perf_event_task_output(struc
 
 static int perf_event_task_match(struct perf_event *event)
 {
+	if (event->state != PERF_EVENT_STATE_ACTIVE)
+		return 0;
+
 	if (event->cpu != -1 && event->cpu != smp_processor_id())
 		return 0;
 
@@ -3345,6 +3348,9 @@ static void perf_event_comm_output(struc
 
 static int perf_event_comm_match(struct perf_event *event)
 {
+	if (event->state != PERF_EVENT_STATE_ACTIVE)
+		return 0;
+
 	if (event->cpu != -1 && event->cpu != smp_processor_id())
 		return 0;
 
@@ -3472,6 +3478,9 @@ static void perf_event_mmap_output(struc
 static int perf_event_mmap_match(struct perf_event *event,
 				   struct perf_mmap_event *mmap_event)
 {
+	if (event->state != PERF_EVENT_STATE_ACTIVE)
+		return 0;
+
 	if (event->cpu != -1 && event->cpu != smp_processor_id())
 		return 0;
 


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