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#ifndef _LINUX_TIME64_H
#define _LINUX_TIME64_H
#include <linux/types.h>
#define timespec64 timespec
typedef __s64 time64_t;
/* Parameters used to convert the timespec values: */
#define MSEC_PER_SEC 1000L
#define USEC_PER_MSEC 1000L
#define NSEC_PER_USEC 1000L
#define NSEC_PER_MSEC 1000000L
#define USEC_PER_SEC 1000000L
#define NSEC_PER_SEC 1000000000L
#define FSEC_PER_SEC 1000000000000000LL
static inline struct timespec ns_to_timespec(const u64 nsec)
{
return (struct timespec) {
.tv_sec = nsec / NSEC_PER_SEC,
.tv_nsec = nsec % NSEC_PER_SEC,
};
}
static inline s64 timespec_to_ns(const struct timespec *ts)
{
return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
}
static inline struct timespec timespec_trunc(struct timespec t, unsigned gran)
{
/* Avoid division in the common cases 1 ns and 1 s. */
if (gran == 1) {
/* nothing */
} else if (gran == NSEC_PER_SEC) {
t.tv_nsec = 0;
} else if (gran > 1 && gran < NSEC_PER_SEC) {
t.tv_nsec -= t.tv_nsec % gran;
} else {
WARN(1, "illegal file time granularity: %u", gran);
}
return t;
}
#define ns_to_timespec64 ns_to_timespec
#define timespec64_to_ns timespec_to_ns
#define timespec64_trunc timespec_trunc
#endif /* _LINUX_TIME64_H */
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