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timekeeping: Provide ktime_get[*]_ns() helpers 

A lot of code converts either timespecs or ktime_t to
nanoseconds. Provide helper functions.

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 21:04:29 +00:00 committed by John Stultz
parent dcaab54e34
commit 897994e32b
1 changed files with 15 additions and 0 deletions
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15
include/linux/timekeeping.h
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@ -145,6 +145,21 @@ static inline ktime_t ktime_mono_to_real(ktime_t mono)
return ktime_mono_to_any(mono, TK_OFFS_REAL);
}
static inline u64 ktime_get_ns(void)
{
return ktime_to_ns(ktime_get());
}
static inline u64 ktime_get_real_ns(void)
{
return ktime_to_ns(ktime_get_real());
}
static inline u64 ktime_get_boot_ns(void)
{
return ktime_to_ns(ktime_get_boottime());
}
/*
* RTC specific
*/