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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-07-29 23:27:18 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-29 16:45:38 -0700 |
| commit | 296699de6bdc717189a331ab6bbe90e05c94db06 (patch) | |
| tree | 53c847ecc8cce11952502921844052e44ca60d5e /include/linux/freezer.h | |
| parent | b0cb1a19d05b8ea8611a9ef48a17fe417f1832e6 (diff) | |
| download | linux-296699de6bdc717189a331ab6bbe90e05c94db06.tar.gz linux-296699de6bdc717189a331ab6bbe90e05c94db06.tar.bz2 linux-296699de6bdc717189a331ab6bbe90e05c94db06.zip | |
Introduce CONFIG_SUSPEND for suspend-to-Ram and standby
Introduce CONFIG_SUSPEND representing the ability to enter system sleep
states, such as the ACPI S3 state, and allow the user to choose SUSPEND
and HIBERNATION independently of each other.
Make HOTPLUG_CPU be selected automatically if SUSPEND or HIBERNATION has
been chosen and the kernel is intended for SMP systems.
Also, introduce CONFIG_PM_SLEEP which is automatically selected if
CONFIG_SUSPEND or CONFIG_HIBERNATION is set and use it to select the
code needed for both suspend and hibernation.
The top-level power management headers and the ACPI code related to
suspend and hibernation are modified to use the new definitions (the
changes in drivers/acpi/sleep/main.c are, mostly, moving code to reduce
the number of ifdefs).
There are many other files in which CONFIG_PM can be replaced with
CONFIG_PM_SLEEP or even with CONFIG_SUSPEND, but they can be updated in
the future.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/freezer.h')
| -rw-r--r-- | include/linux/freezer.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/freezer.h b/include/linux/freezer.h index c8e02de737f6..efded00ad08c 100644 --- a/include/linux/freezer.h +++ b/include/linux/freezer.h @@ -5,7 +5,7 @@ #include <linux/sched.h> -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP /* * Check if a process has been frozen */ @@ -126,7 +126,7 @@ static inline void set_freezable(void) current->flags &= ~PF_NOFREEZE; } -#else +#else /* !CONFIG_PM_SLEEP */ static inline int frozen(struct task_struct *p) { return 0; } static inline int freezing(struct task_struct *p) { return 0; } static inline void set_freeze_flag(struct task_struct *p) {} @@ -143,6 +143,6 @@ static inline void freezer_do_not_count(void) {} static inline void freezer_count(void) {} static inline int freezer_should_skip(struct task_struct *p) { return 0; } static inline void set_freezable(void) {} -#endif +#endif /* !CONFIG_PM_SLEEP */ #endif /* FREEZER_H_INCLUDED */ |