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timekeeping: Use ktime_t based data for ktime_get_real()

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Speed up the readout.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Thomas Gleixner 2014-07-16 21:04:14 +00:00 committed by John Stultz
parent 0077dc60f2
commit f5264d5d5a
2 changed files with 8 additions and 16 deletions
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9
include/linux/timekeeping.h
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@ -108,11 +108,18 @@ enum tk_offsets {
extern ktime_t ktime_get(void); extern ktime_t ktime_get(void);
extern ktime_t ktime_get_with_offset(enum tk_offsets offs); extern ktime_t ktime_get_with_offset(enum tk_offsets offs);
extern ktime_t ktime_get_real(void);
extern ktime_t ktime_get_boottime(void); extern ktime_t ktime_get_boottime(void);
extern ktime_t ktime_get_monotonic_offset(void); extern ktime_t ktime_get_monotonic_offset(void);
extern ktime_t ktime_get_clocktai(void); extern ktime_t ktime_get_clocktai(void);
/**
* ktime_get_real - get the real (wall-) time in ktime_t format
*/
static inline ktime_t ktime_get_real(void)
{
return ktime_get_with_offset(TK_OFFS_REAL);
}
/* /*
* RTC specific * RTC specific
*/ */

15
kernel/time/timekeeping.c
View File

@ -773,21 +773,6 @@ int timekeeping_notify(struct clocksource *clock)
return tk->clock == clock ? 0 : -1; return tk->clock == clock ? 0 : -1;
} }
/**
* ktime_get_real - get the real (wall-) time in ktime_t format
*
* returns the time in ktime_t format
*/
ktime_t ktime_get_real(void)
{
struct timespec64 now;
getnstimeofday64(&now);
return timespec64_to_ktime(now);
}
EXPORT_SYMBOL_GPL(ktime_get_real);
/** /**
* getrawmonotonic - Returns the raw monotonic time in a timespec * getrawmonotonic - Returns the raw monotonic time in a timespec
* @ts: pointer to the timespec to be set * @ts: pointer to the timespec to be set