[tip:perf/core] perf: Add calls to suspend trace point

[tip-bot for Jean Pihet]

Commit-ID:  938cfed18bec2c7361f37efc954712a7cc42c353
Gitweb:     http://git.kernel.org/tip/938cfed18bec2c7361f37efc954712a7cc42c353
Author:     Jean Pihet <j-pihet@xxxxxx>
AuthorDate: Wed, 5 Jan 2011 19:49:01 +0100
Committer:  Ingo Molnar <mingo@xxxxxxx>
CommitDate: Wed, 5 Jan 2011 21:25:28 +0100

perf: Add calls to suspend trace point

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

Signed-off-by: Jean Pihet <j-pihet@xxxxxx>
Acked-by: Rafael J. Wysocki <rjw@xxxxxxx>
Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
CC: Thomas Renninger <trenn@xxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Pavel Machek <pavel@xxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx
LKML-Reference: <1294253342-29056-2-git-send-email-j-pihet@xxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
 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..031d5e3 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"
 
@@ -201,6 +202,7 @@ int suspend_devices_and_enter(suspend_state_t state)
 	if (!suspend_ops)
 		return -ENOSYS;
 
+	trace_machine_suspend(state);
 	if (suspend_ops->begin) {
 		error = suspend_ops->begin(state);
 		if (error)
@@ -229,6 +231,7 @@ int suspend_devices_and_enter(suspend_state_t state)
  Close:
 	if (suspend_ops->end)
 		suspend_ops->end();
+	trace_machine_suspend(PWR_EVENT_EXIT);
 	return error;
 
  Recover_platform:
--
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