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Diffstat (limited to 'kernel/power/suspend.c')
-rw-r--r--kernel/power/suspend.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 7335952ee47..de6f86bfa30 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"
@@ -30,13 +31,13 @@ const char *const pm_states[PM_SUSPEND_MAX] = {
[PM_SUSPEND_MEM] = "mem",
};
-static struct platform_suspend_ops *suspend_ops;
+static const struct platform_suspend_ops *suspend_ops;
/**
* suspend_set_ops - Set the global suspend method table.
* @ops: Pointer to ops structure.
*/
-void suspend_set_ops(struct platform_suspend_ops *ops)
+void suspend_set_ops(const struct platform_suspend_ops *ops)
{
mutex_lock(&pm_mutex);
suspend_ops = ops;
@@ -163,7 +164,7 @@ static int suspend_enter(suspend_state_t state)
error = sysdev_suspend(PMSG_SUSPEND);
if (!error) {
- if (!suspend_test(TEST_CORE) && pm_check_wakeup_events()) {
+ if (!(suspend_test(TEST_CORE) || pm_wakeup_pending())) {
error = suspend_ops->enter(state);
events_check_enabled = false;
}
@@ -197,18 +198,18 @@ static int suspend_enter(suspend_state_t state)
int suspend_devices_and_enter(suspend_state_t state)
{
int error;
- gfp_t saved_mask;
if (!suspend_ops)
return -ENOSYS;
+ trace_machine_suspend(state);
if (suspend_ops->begin) {
error = suspend_ops->begin(state);
if (error)
goto Close;
}
suspend_console();
- saved_mask = clear_gfp_allowed_mask(GFP_IOFS);
+ pm_restrict_gfp_mask();
suspend_test_start();
error = dpm_suspend_start(PMSG_SUSPEND);
if (error) {
@@ -225,11 +226,12 @@ int suspend_devices_and_enter(suspend_state_t state)
suspend_test_start();
dpm_resume_end(PMSG_RESUME);
suspend_test_finish("resume devices");
- set_gfp_allowed_mask(saved_mask);
+ pm_restore_gfp_mask();
resume_console();
Close:
if (suspend_ops->end)
suspend_ops->end();
+ trace_machine_suspend(PWR_EVENT_EXIT);
return error;
Recover_platform: