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authorJean Pihet <j-pihet@ti.com>2011-01-05 19:49:01 +0100
committerIngo Molnar <mingo@elte.hu>2011-01-05 21:25:28 +0100
commit938cfed18bec2c7361f37efc954712a7cc42c353 (patch)
tree39aa3792d84ae74d7c5cbf7c14779ebe5b221e31 /kernel
parenteccdfe2d245a882feacc4630c9bc29805e9929c8 (diff)
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@ti.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Arjan van de Ven <arjan@linux.intel.com> CC: Thomas Renninger <trenn@suse.de> Cc: Len Brown <len.brown@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-pm@lists.linux-foundation.org LKML-Reference: <1294253342-29056-2-git-send-email-j-pihet@ti.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/power/suspend.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index ecf770509d0..031d5e3a619 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: