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hrtimers: Prepare for cancel on clock was set timers

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Make clock_was_set() unconditional and rename hres_timers_resume to
hrtimers_resume. This is a preparatory patch for hrtimers which are
cancelled when clock realtime was set.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2011-05-02 16:48:57 +02:00
parent 942c3c5c32
commit b12a03ce48
3 changed files with 65 additions and 78 deletions
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16
include/linux/hrtimer.h
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@@ -148,9 +148,7 @@ struct hrtimer_clock_base {
ktime_t resolution;
ktime_t (*get_time)(void);
ktime_t softirq_time;
#ifdef CONFIG_HIGH_RES_TIMERS
ktime_t offset;
#endif
};
enum hrtimer_base_type {
@@ -256,8 +254,6 @@ static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer)
#ifdef CONFIG_HIGH_RES_TIMERS
struct clock_event_device;
extern void clock_was_set(void);
extern void hres_timers_resume(void);
extern void hrtimer_interrupt(struct clock_event_device *dev);
/*
@@ -291,16 +287,8 @@ extern void hrtimer_peek_ahead_timers(void);
# define MONOTONIC_RES_NSEC LOW_RES_NSEC
# define KTIME_MONOTONIC_RES KTIME_LOW_RES
/*
* clock_was_set() is a NOP for non- high-resolution systems. The
* time-sorted order guarantees that a timer does not expire early and
* is expired in the next softirq when the clock was advanced.
*/
static inline void clock_was_set(void) { }
static inline void hrtimer_peek_ahead_timers(void) { }
static inline void hres_timers_resume(void) { }
/*
* In non high resolution mode the time reference is taken from
* the base softirq time variable.
@@ -316,11 +304,13 @@ static inline int hrtimer_is_hres_active(struct hrtimer *timer)
}
#endif
extern void clock_was_set(void);
extern void hrtimers_resume(void);
extern ktime_t ktime_get(void);
extern ktime_t ktime_get_real(void);
extern ktime_t ktime_get_boottime(void);
DECLARE_PER_CPU(struct tick_device, tick_cpu_device);