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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-11-26 13:49:04 +0100
committerIngo Molnar <mingo@elte.hu>2010-11-26 15:00:59 +0100
commitee6dcfa40a50fe12a3ae0fb4d2653c66c3ed6556 (patch)
treee77ac01a6bf2106f7a2c22f00e43cb2960d72ba5 /kernel
parentcc2067a51424dd25c10c1b1230b4222d8baec94d (diff)
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perf: Fix the software context switch counter
Stephane noticed that because the perf_sw_event() call is inside the perf_event_task_sched_out() call it won't get called unless we have a per-task counter. Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/perf_event.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index f365dd8ef8b..eac7e336433 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1287,8 +1287,6 @@ void __perf_event_task_sched_out(struct task_struct *task,
{
int ctxn;
- perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 1, NULL, 0);
-
for_each_task_context_nr(ctxn)
perf_event_context_sched_out(task, ctxn, next);
}