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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-01-18 09:12:32 +0100
committerIngo Molnar <mingo@elte.hu>2010-01-21 13:40:40 +0100
commit22e190851f8709c48baf00ed9ce6144cdc54d025 (patch)
tree52e4104e23a68282dce5dfe181c1234f8764bcd9
parentfe432200abb0d64f409895168d9ad8fbb9d8e6c6 (diff)
downloadlinux-stericsson-22e190851f8709c48baf00ed9ce6144cdc54d025.tar.gz
perf: Honour event state for aux stream data
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@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Tested-by: Anton Blanchard <anton@samba.org> LKML-Reference: <1263459187.4244.265.camel@laptop> CC: stable@kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/perf_event.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 603c0d8b5df1..d27746bd3a06 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3268,6 +3268,9 @@ static void perf_event_task_output(struct perf_event *event,
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;
@@ -3377,6 +3380,9 @@ static void perf_event_comm_output(struct perf_event *event,
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;
@@ -3494,6 +3500,9 @@ static void perf_event_mmap_output(struct perf_event *event,
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;