Add markers into the wakeup code, to allow the tracer to
record wakeup timings.
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
---
kernel/sched.c | 8 ++++++++
1 file changed, 8 insertions(+)
Index: linux-mcount.git/kernel/sched.c
===================================================================
--- linux-mcount.git.orig/kernel/sched.c 2008-01-30 15:26:37.000000000
-0500
+++ linux-mcount.git/kernel/sched.c 2008-01-30 15:35:02.000000000 -0500
@@ -1885,6 +1885,10 @@ static int try_to_wake_up(struct task_st
out_activate:
#endif /* CONFIG_SMP */
+ trace_mark(kernel_sched_wakeup,
+ "p %p rq->curr %p",
+ p, rq->curr);
+
schedstat_inc(p, se.nr_wakeups);
if (sync)
schedstat_inc(p, se.nr_wakeups_sync);
@@ -2026,6 +2030,10 @@ void fastcall wake_up_new_task(struct ta
p->sched_class->task_new(rq, p);
inc_nr_running(p, rq);
}
+ trace_mark(kernel_sched_wakeup_new,
+ "p %p rq->curr %p",
+ p, rq->curr);
+
check_preempt_curr(rq, p);
#ifdef CONFIG_SMP
if (p->sched_class->task_wake_up)
--
--
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