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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-11-24 09:16:30 +0300 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-11-24 09:16:30 +0300 |
| commit | 1e43bee9c70654b4d52472c19e5f0a0cc18b6b36 (patch) | |
| tree | ff601ec0c0d14125d0324f21b3c7e6d5e19fa252 /include/linux/suspend.h | |
| parent | 7d6709a20866a885916214590b7c394a21be9e25 (diff) | |
| parent | a8a8a669ea13d792296737505adc43ccacf3a648 (diff) | |
| download | linux-1e43bee9c70654b4d52472c19e5f0a0cc18b6b36.tar.xz | |
Merge commit 'origin/master' into next
Diffstat (limited to 'include/linux/suspend.h')
| -rw-r--r-- | include/linux/suspend.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/include/linux/suspend.h b/include/linux/suspend.h index cd15df6c63cd..5e781d824e6d 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -301,6 +301,8 @@ static inline int unregister_pm_notifier(struct notifier_block *nb) #define pm_notifier(fn, pri) do { (void)(fn); } while (0) #endif /* !CONFIG_PM_SLEEP */ +extern struct mutex pm_mutex; + #ifndef CONFIG_HIBERNATION static inline void register_nosave_region(unsigned long b, unsigned long e) { @@ -308,8 +310,23 @@ static inline void register_nosave_region(unsigned long b, unsigned long e) static inline void register_nosave_region_late(unsigned long b, unsigned long e) { } -#endif -extern struct mutex pm_mutex; +static inline void lock_system_sleep(void) {} +static inline void unlock_system_sleep(void) {} + +#else + +/* Let some subsystems like memory hotadd exclude hibernation */ + +static inline void lock_system_sleep(void) +{ + mutex_lock(&pm_mutex); +} + +static inline void unlock_system_sleep(void) +{ + mutex_unlock(&pm_mutex); +} +#endif #endif /* _LINUX_SUSPEND_H */ |