diff options
Diffstat (limited to 'include/linux/time64.h')
| -rw-r--r-- | include/linux/time64.h | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/include/linux/time64.h b/include/linux/time64.h index 9e5d90e6..fd59a9a6 100644 --- a/include/linux/time64.h +++ b/include/linux/time64.h @@ -5,25 +5,6 @@ typedef __s64 time64_t; -/* - * This wants to go into uapi/linux/time.h once we agreed about the - * userspace interfaces. - */ -#if __BITS_PER_LONG == 64 -# define timespec64 timespec -#else -struct timespec64 { - time64_t tv_sec; /* seconds */ - long tv_nsec; /* nanoseconds */ -}; - -struct itimerspec64 { - struct timespec64 it_interval; - struct timespec64 it_value; -}; - -#endif - /* Parameters used to convert the timespec values: */ #define MSEC_PER_SEC 1000L #define USEC_PER_MSEC 1000L @@ -33,11 +14,6 @@ struct itimerspec64 { #define NSEC_PER_SEC 1000000000L #define FSEC_PER_SEC 1000000000000000LL -/* Located here for timespec[64]_valid_strict */ -#define TIME64_MAX ((s64)~((u64)1 << 63)) -#define KTIME_MAX ((s64)~((u64)1 << 63)) -#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC) - static inline struct timespec ns_to_timespec(const u64 nsec) { return (struct timespec) { @@ -51,159 +27,6 @@ static inline s64 timespec_to_ns(const struct timespec *ts) return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec; } -#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 -# define timespec64_add timespec_add -# define timespec64_sub timespec_sub -# define timespec64_valid timespec_valid -# define timespec64_valid_strict timespec_valid_strict -# define timespec64_to_ns timespec_to_ns -# define ns_to_timespec64 ns_to_timespec -# define timespec64_add_ns timespec_add_ns - -#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) -{ - return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec); -} - -/* - * lhs < rhs: return <0 - * lhs == rhs: return 0 - * lhs > rhs: return >0 - */ -static inline int timespec64_compare(const struct timespec64 *lhs, const struct timespec64 *rhs) -{ - if (lhs->tv_sec < rhs->tv_sec) - return -1; - if (lhs->tv_sec > rhs->tv_sec) - return 1; - return lhs->tv_nsec - rhs->tv_nsec; -} - -extern void set_normalized_timespec64(struct timespec64 *ts, time64_t sec, s64 nsec); - -static inline struct timespec64 timespec64_add(struct timespec64 lhs, - struct timespec64 rhs) -{ - struct timespec64 ts_delta; - set_normalized_timespec64(&ts_delta, lhs.tv_sec + rhs.tv_sec, - lhs.tv_nsec + rhs.tv_nsec); - return ts_delta; -} - -/* - * sub = lhs - rhs, in normalized form - */ -static inline struct timespec64 timespec64_sub(struct timespec64 lhs, - struct timespec64 rhs) -{ - struct timespec64 ts_delta; - set_normalized_timespec64(&ts_delta, lhs.tv_sec - rhs.tv_sec, - lhs.tv_nsec - rhs.tv_nsec); - return ts_delta; -} - -/* - * Returns true if the timespec64 is norm, false if denorm: - */ -static inline bool timespec64_valid(const struct timespec64 *ts) -{ - /* Dates before 1970 are bogus */ - if (ts->tv_sec < 0) - return false; - /* Can't have more nanoseconds then a second */ - if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC) - return false; - return true; -} - -static inline bool timespec64_valid_strict(const struct timespec64 *ts) -{ - if (!timespec64_valid(ts)) - return false; - /* Disallow values that could overflow ktime_t */ - if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX) - return false; - return true; -} - -/** - * timespec64_to_ns - Convert timespec64 to nanoseconds - * @ts: pointer to the timespec64 variable to be converted - * - * Returns the scalar nanosecond representation of the timespec64 - * parameter. - */ -static inline s64 timespec64_to_ns(const struct timespec64 *ts) -{ - return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec; -} - -/** - * ns_to_timespec64 - Convert nanoseconds to timespec64 - * @nsec: the nanoseconds value to be converted - * - * Returns the timespec64 representation of the nsec parameter. - */ -extern struct timespec64 ns_to_timespec64(const s64 nsec); - -/** - * timespec64_add_ns - Adds nanoseconds to a timespec64 - * @a: pointer to timespec64 to be incremented - * @ns: unsigned nanoseconds value to be added - * - * This must always be inlined because its used from the x86-64 vdso, - * which cannot call other kernel functions. - */ -static __always_inline void timespec64_add_ns(struct timespec64 *a, u64 ns) -{ - a->tv_sec += (a->tv_nsec + ns) / NSEC_PER_SEC; - a->tv_nsec += (a->tv_nsec + ns) % NSEC_PER_SEC; -} - -#endif - -/* - * timespec64_add_safe assumes both values are positive and checks for - * overflow. It will return TIME64_MAX in case of overflow. - */ -extern struct timespec64 timespec64_add_safe(const struct timespec64 lhs, - const struct timespec64 rhs); - static inline struct timespec timespec_trunc(struct timespec t, unsigned gran) { /* Avoid division in the common cases 1 ns and 1 s. */ |