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-rw-r--r--include/linux/time.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/time.h b/include/linux/time.h
index 0cd696cee998..65dd85b2105e 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -77,6 +77,8 @@ extern struct timespec xtime;
77extern struct timespec wall_to_monotonic; 77extern struct timespec wall_to_monotonic;
78extern seqlock_t xtime_lock; 78extern seqlock_t xtime_lock;
79 79
80void timekeeping_init(void);
81
80static inline unsigned long get_seconds(void) 82static inline unsigned long get_seconds(void)
81{ 83{
82 return xtime.tv_sec; 84 return xtime.tv_sec;
@@ -100,6 +102,7 @@ extern int do_getitimer(int which, struct itimerval *value);
100extern void getnstimeofday(struct timespec *tv); 102extern void getnstimeofday(struct timespec *tv);
101 103
102extern struct timespec timespec_trunc(struct timespec t, unsigned gran); 104extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
105extern int timekeeping_is_continuous(void);
103 106
104/** 107/**
105 * timespec_to_ns - Convert timespec to nanoseconds 108 * timespec_to_ns - Convert timespec to nanoseconds
@@ -142,6 +145,20 @@ extern struct timespec ns_to_timespec(const s64 nsec);
142 */ 145 */
143extern struct timeval ns_to_timeval(const s64 nsec); 146extern struct timeval ns_to_timeval(const s64 nsec);
144 147
148/**
149 * timespec_add_ns - Adds nanoseconds to a timespec
150 * @a: pointer to timespec to be incremented
151 * @ns: unsigned nanoseconds value to be added
152 */
153static inline void timespec_add_ns(struct timespec *a, u64 ns)
154{
155 ns += a->tv_nsec;
156 while(unlikely(ns >= NSEC_PER_SEC)) {
157 ns -= NSEC_PER_SEC;
158 a->tv_sec++;
159 }
160 a->tv_nsec = ns;
161}
145#endif /* __KERNEL__ */ 162#endif /* __KERNEL__ */
146 163
147#define NFDBITS __NFDBITS 164#define NFDBITS __NFDBITS