[PATCH 1/3] perf: add calls to suspend trace point

jean.pihet
2011-01-04T10:48:29Z

From: Jean Pihet <j-pihet@ti.com>

Uses the machine_suspend trace point, called from the
generic kernel suspend_enter function.

Signed-off-by: Jean Pihet <j-pihet@ti.com>
CC: Thomas Renninger <trenn@suse.de>
---
kernel/power/suspend.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index ecf7705..0650596 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -22,6 +22,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/suspend.h>
+#include <trace/events/power.h>

#include "power.h"

@@ -164,7 +165,9 @@ static int suspend_enter(suspend_state_t state)
error = sysdev_suspend(PMSG_SUSPEND);
if (!error) {
if (!suspend_test(TEST_CORE) && pm_check_wakeup_events()) {
+ trace_machine_suspend(state);
error = suspend_ops->enter(state);
+ trace_machine_suspend(PWR_EVENT_EXIT);
events_check_enabled = false;
}
sysdev_resume();
--
1.7.2.3