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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2010-10-04 22:07:32 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2010-10-17 01:57:49 +0200 |
| commit | dbeeec5fe868f2e2e92fe94daa2c5a047240fdc4 (patch) | |
| tree | 165c04443d737c0e8524e9917a6e4a338c397391 /include/linux/suspend.h | |
| parent | 5fc62aad4e7779c2f04691e48b351d08c050c1f1 (diff) | |
| download | linux-dbeeec5fe868f2e2e92fe94daa2c5a047240fdc4.tar.gz linux-dbeeec5fe868f2e2e92fe94daa2c5a047240fdc4.tar.bz2 linux-dbeeec5fe868f2e2e92fe94daa2c5a047240fdc4.zip | |
PM: Allow wakeup events to abort freezing of tasks
If there is a wakeup event during the freezing of tasks, suspend or
hibernation will fail anyway. Since try_to_freeze_tasks() can take
up to 20 seconds to complete or fail, aborting it as soon as a wakeup
event is detected improves the worst case wakeup latency.
Based on a patch from Arve Hjønnevåg.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Diffstat (limited to 'include/linux/suspend.h')
| -rw-r--r-- | include/linux/suspend.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 6b1712c51102..26697514c5ec 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -308,6 +308,8 @@ static inline int unregister_pm_notifier(struct notifier_block *nb) } #define pm_notifier(fn, pri) do { (void)(fn); } while (0) + +static inline bool pm_check_wakeup_events(void) { return true; } #endif /* !CONFIG_PM_SLEEP */ extern struct mutex pm_mutex; |