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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6

Browse source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  spi / PM: Support dev_pm_ops
  PM: Prototype the pm_generic_ operations
  PM / Runtime: Generic resume shouldn't set RPM_ACTIVE unconditionally
  PM: Use dev_name() in core device suspend and resume routines
  PM: Permit registration of parentless devices during system suspend
  PM: Replace the device power.status field with a bit field
  PM: Remove redundant checks from core device resume routines
  PM: Use a different list of devices for each stage of device suspend
  PM: Avoid compiler warning in pm_noirq_op()
  PM: Use pm_wakeup_pending() in __device_suspend()
  PM / Wakeup: Replace pm_check_wakeup_events() with pm_wakeup_pending()
  PM: Prevent dpm_prepare() from returning errors unnecessarily
  PM: Fix references to basic-pm-debugging.txt in drivers-testing.txt
  PM / Runtime: Add synchronous runtime interface for interrupt handlers (v3)
  PM / Hibernate: When failed, in_suspend should be reset
  PM / Hibernate: hibernation_ops->leave should be checked too
  Freezer: Fix a race during freezing of TASK_STOPPED tasks
  PM: Use proper ccflag flag in kernel/power/Makefile
  PM / Runtime: Fix comments to match runtime callback code
This commit is contained in:
Linus Torvalds 2011-01-10 08:14:53 -08:00
commit c8940eca75
17 changed files with 282 additions and 206 deletions
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5
kernel/power/Makefile
View file

@ -1,7 +1,4 @@
ifeq ($(CONFIG_PM_DEBUG),y)
EXTRA_CFLAGS += -DDEBUG
endif
ccflags-$(CONFIG_PM_DEBUG) := -DDEBUG
obj-$(CONFIG_PM) += main.o
obj-$(CONFIG_PM_SLEEP) += console.o

7
kernel/power/hibernate.c
View file

@ -62,7 +62,7 @@ void hibernation_set_ops(struct platform_hibernation_ops *ops)
{
if (ops && !(ops->begin && ops->end && ops->pre_snapshot
&& ops->prepare && ops->finish && ops->enter && ops->pre_restore
&& ops->restore_cleanup)) {
&& ops->restore_cleanup && ops->leave)) {
WARN_ON(1);
return;
}
@ -278,7 +278,7 @@ static int create_image(int platform_mode)
goto Enable_irqs;
}
if (hibernation_test(TEST_CORE) || !pm_check_wakeup_events())
if (hibernation_test(TEST_CORE) || pm_wakeup_pending())
goto Power_up;
in_suspend = 1;
@ -516,7 +516,7 @@ int hibernation_platform_enter(void)
local_irq_disable();
sysdev_suspend(PMSG_HIBERNATE);
if (!pm_check_wakeup_events()) {
if (pm_wakeup_pending()) {
error = -EAGAIN;
goto Power_up;
}
@ -647,6 +647,7 @@ int hibernate(void)
swsusp_free();
if (!error)
power_down();
in_suspend = 0;
pm_restore_gfp_mask();
} else {
pr_debug("PM: Image restored successfully.\n");

8
kernel/power/process.c
View file

@ -64,6 +64,12 @@ static int try_to_freeze_tasks(bool sig_only)
* perturb a task in TASK_STOPPED or TASK_TRACED.
* It is "frozen enough". If the task does wake
* up, it will immediately call try_to_freeze.
*
* Because freeze_task() goes through p's
* scheduler lock after setting TIF_FREEZE, it's
* guaranteed that either we see TASK_RUNNING or
* try_to_stop() after schedule() in ptrace/signal
* stop sees TIF_FREEZE.
*/
if (!task_is_stopped_or_traced(p) &&
!freezer_should_skip(p))
@ -79,7 +85,7 @@ static int try_to_freeze_tasks(bool sig_only)
if (!todo || time_after(jiffies, end_time))
break;
if (!pm_check_wakeup_events()) {
if (pm_wakeup_pending()) {
wakeup = true;
break;
}

2
kernel/power/suspend.c
View file

@ -164,7 +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;
}