#ifdef __KERNEL__
/* Parameters used to convert the timespec values: */
-#define MSEC_PER_SEC 1000L
-#define USEC_PER_SEC 1000000L
-#define NSEC_PER_SEC 1000000000L
-#define NSEC_PER_USEC 1000L
+#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 1000000000000000L
static inline int timespec_equal(struct timespec *a, struct timespec *b)
{
extern void set_normalized_timespec(struct timespec *ts, time_t sec, long nsec);
+/*
+ * sub = lhs - rhs, in normalized form
+ */
+static inline struct timespec timespec_sub(struct timespec lhs,
+ struct timespec rhs)
+{
+ struct timespec ts_delta;
+ set_normalized_timespec(&ts_delta, lhs.tv_sec - rhs.tv_sec,
+ lhs.tv_nsec - rhs.tv_nsec);
+ return ts_delta;
+}
+
/*
* Returns true if the timespec is norm, false if denorm:
*/
extern struct timespec wall_to_monotonic;
extern seqlock_t xtime_lock;
+void timekeeping_init(void);
+
static inline unsigned long get_seconds(void)
{
return xtime.tv_sec;
extern void getnstimeofday(struct timespec *tv);
extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
+extern int timekeeping_is_continuous(void);
/**
* timespec_to_ns - Convert timespec to nanoseconds
*/
extern struct timeval ns_to_timeval(const s64 nsec);
+/**
+ * timespec_add_ns - Adds nanoseconds to a timespec
+ * @a: pointer to timespec to be incremented
+ * @ns: unsigned nanoseconds value to be added
+ */
+static inline void timespec_add_ns(struct timespec *a, u64 ns)
+{
+ ns += a->tv_nsec;
+ while(unlikely(ns >= NSEC_PER_SEC)) {
+ ns -= NSEC_PER_SEC;
+ a->tv_sec++;
+ }
+ a->tv_nsec = ns;
+}
#endif /* __KERNEL__ */
#define NFDBITS __NFDBITS