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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-17 20:31:59 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-17 20:31:59 +0300 |
| commit | 508817e7cd8cb585148d12b5673202142ece2330 (patch) | |
| tree | 5041771f203c906afce49d9e75e5e856f77a903f | |
| parent | 8efc1a1a22e6daf9d669e6095460c77df683c325 (diff) | |
| parent | f08f5a0add20834d3f3d876dfe08005a5df656db (diff) | |
| download | linux-508817e7cd8cb585148d12b5673202142ece2330.tar.xz | |
Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM / Runtime: Fix pm_runtime_suspended()
PM / Hibernate: Restore old swap signature to avoid user space breakage
PM / Hibernate: Fix PM_POST_* notification with user-space suspend
| -rw-r--r-- | Documentation/power/runtime_pm.txt | 4 | ||||
| -rw-r--r-- | include/linux/pm_runtime.h | 3 | ||||
| -rw-r--r-- | kernel/power/swap.c | 2 | ||||
| -rw-r--r-- | kernel/power/user.c | 2 |
4 files changed, 6 insertions, 5 deletions
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 489e9bacd165..41cc7b30d7dd 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -379,8 +379,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: zero) bool pm_runtime_suspended(struct device *dev); - - return true if the device's runtime PM status is 'suspended', or false - otherwise + - return true if the device's runtime PM status is 'suspended' and its + 'power.disable_depth' field is equal to zero, or false otherwise void pm_runtime_allow(struct device *dev); - set the power.runtime_auto flag for the device and decrease its usage diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 3ec2358f8692..d19f1cca7f74 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -77,7 +77,8 @@ static inline void device_set_run_wake(struct device *dev, bool enable) static inline bool pm_runtime_suspended(struct device *dev) { - return dev->power.runtime_status == RPM_SUSPENDED; + return dev->power.runtime_status == RPM_SUSPENDED + && !dev->power.disable_depth; } static inline void pm_runtime_mark_last_busy(struct device *dev) diff --git a/kernel/power/swap.c b/kernel/power/swap.c index baf667bb2794..8c7e4832b9be 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -30,7 +30,7 @@ #include "power.h" -#define HIBERNATE_SIG "LINHIB0001" +#define HIBERNATE_SIG "S1SUSPEND" /* * The swap map is a data structure used for keeping track of each page diff --git a/kernel/power/user.c b/kernel/power/user.c index 1b2ea31e6bd8..c36c3b9e8a84 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -137,7 +137,7 @@ static int snapshot_release(struct inode *inode, struct file *filp) free_all_swap_pages(data->swap); if (data->frozen) thaw_processes(); - pm_notifier_call_chain(data->mode == O_WRONLY ? + pm_notifier_call_chain(data->mode == O_RDONLY ? PM_POST_HIBERNATION : PM_POST_RESTORE); atomic_inc(&snapshot_device_available); |