diff options
| author | Jean Delvare <jdelvare@suse.de> | 2016-01-11 17:40:31 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-01-15 22:34:39 +0100 |
| commit | 46373a15f65fe862f31c19a484acdf551f2b442f (patch) | |
| tree | 8d51c3edb900849b9bd24186ac32e9fe2cd6b75c | |
| parent | 9c4b2867ed7c8c8784dd417ffd16e705e81eb145 (diff) | |
time: nohz: Expose tick_nohz_enabled
The cpuidle subsystem needs it.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | include/linux/tick.h | 2 | ||||
| -rw-r--r-- | kernel/time/tick-sched.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h index e312219ff823..97fd4e543846 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -98,6 +98,7 @@ static inline void tick_broadcast_exit(void) } #ifdef CONFIG_NO_HZ_COMMON +extern int tick_nohz_enabled; extern int tick_nohz_tick_stopped(void); extern void tick_nohz_idle_enter(void); extern void tick_nohz_idle_exit(void); @@ -106,6 +107,7 @@ extern ktime_t tick_nohz_get_sleep_length(void); extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time); extern u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time); #else /* !CONFIG_NO_HZ_COMMON */ +#define tick_nohz_enabled (0) static inline int tick_nohz_tick_stopped(void) { return 0; } static inline void tick_nohz_idle_enter(void) { } static inline void tick_nohz_idle_exit(void) { } diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 7c7ec4515983..edfea95c39db 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -387,7 +387,7 @@ void __init tick_nohz_init(void) /* * NO HZ enabled ? */ -static int tick_nohz_enabled __read_mostly = 1; +int tick_nohz_enabled __read_mostly = 1; unsigned long tick_nohz_active __read_mostly; /* * Enable / Disable tickless mode |