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timekeeping: Provide ktime_mono_to_any()

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ktime based conversion function to map a monotonic time stamp to a
different CLOCK.

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 21:04:22 +00:00 • committed by John Stultz
parent 48064f5f67
commit 9a6b51976e
2 changed files with 29 additions and 0 deletions
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9
include/linux/timekeeping.h
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@ -109,6 +109,7 @@ enum tk_offsets {
extern ktime_t ktime_get(void);
extern ktime_t ktime_get_with_offset(enum tk_offsets offs);
extern ktime_t ktime_get_monotonic_offset(void);
extern ktime_t ktime_mono_to_any(ktime_t tmono, enum tk_offsets offs);
/**
* ktime_get_real - get the real (wall-) time in ktime_t format
@ -137,6 +138,14 @@ static inline ktime_t ktime_get_clocktai(void)
return ktime_get_with_offset(TK_OFFS_TAI);
}
/**
* ktime_mono_to_real - Convert monotonic time to clock realtime
*/
static inline ktime_t ktime_mono_to_real(ktime_t mono)
{
return ktime_mono_to_any(mono, TK_OFFS_REAL);
}
/*
* RTC specific
*/