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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-01-18 09:08:26 +0100
committerIngo Molnar <mingo@elte.hu>2010-01-21 13:40:39 +0100
commitfe432200abb0d64f409895168d9ad8fbb9d8e6c6 (patch)
treedab76fc8e717241e1e035f3856d22af5582c1c9c
parentb00eca8cd66029128615e8be9a19e284a950c0f2 (diff)
downloadlinux-fe432200abb0d64f409895168d9ad8fbb9d8e6c6.tar.gz
perf: Fix perf_event_do_pending() fallback callsite
Paul questioned the context in which we should call perf_event_do_pending(). After looking at that I found that it should be called from IRQ context these days, however the fallback call-site is placed in softirq context. Ammend this by placing the callback in the IRQ timer path. Reported-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1263374859.4244.192.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/timer.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/timer.c b/kernel/timer.c
index 15533b79239..c61a7949387 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1198,6 +1198,7 @@ void update_process_times(int user_tick)
run_local_timers();
rcu_check_callbacks(cpu, user_tick);
printk_tick();
+ perf_event_do_pending();
scheduler_tick();
run_posix_cpu_timers(p);
}
@@ -1209,8 +1210,6 @@ static void run_timer_softirq(struct softirq_action *h)
{
struct tvec_base *base = __get_cpu_var(tvec_bases);
- perf_event_do_pending();
-
hrtimer_run_pending();
if (time_after_eq(jiffies, base->timer_jiffies))