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time: More core infrastructure for timespec64

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Helper and conversion functions for timespec64.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
John Stultz
2014-07-16 21:03:59 +00:00
parent 361a3bf005
commit 49cd6f8699
3 changed files with 118 additions and 0 deletions
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28
include/linux/time64.h
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@@ -33,6 +33,16 @@ struct timespec64 {
#if __BITS_PER_LONG == 64
static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
{
return ts64;
}
static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
{
return ts;
}
# define timespec64_equal timespec_equal
# define timespec64_compare timespec_compare
# define set_normalized_timespec64 set_normalized_timespec
@@ -47,6 +57,24 @@ struct timespec64 {
#else
static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
{
struct timespec ret;
ret.tv_sec = (time_t)ts64.tv_sec;
ret.tv_nsec = ts64.tv_nsec;
return ret;
}
static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
{
struct timespec64 ret;
ret.tv_sec = ts.tv_sec;
ret.tv_nsec = ts.tv_nsec;
return ret;
}
static inline int timespec64_equal(const struct timespec64 *a,
const struct timespec64 *b)
{