Merge master.kernel.org:/home/rmk/linux-2.6-mmc

[linux-2.6-omap-h63xx.git] / include / linux / time.h

diff --git a/include/linux/time.h b/include/linux/time.h
index 614dd8465839c215bebf815e1baaf11d6e399939..0cd696cee998c0ed24d28ead62335160bc4e47a0 100644 (file)
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -33,11 +33,34 @@ struct timezone {
 #define NSEC_PER_SEC           1000000000L
 #define NSEC_PER_USEC          1000L
 
-static __inline__ int timespec_equal(struct timespec *a, struct timespec *b)
+static inline int timespec_equal(struct timespec *a, struct timespec *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 timespec_compare(struct timespec *lhs, struct timespec *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;
+}
+
+static inline int timeval_compare(struct timeval *lhs, struct timeval *rhs)
+{
+       if (lhs->tv_sec < rhs->tv_sec)
+               return -1;
+       if (lhs->tv_sec > rhs->tv_sec)
+               return 1;
+       return lhs->tv_usec - rhs->tv_usec;
+}
+
 extern unsigned long mktime(const unsigned int year, const unsigned int mon,
                            const unsigned int day, const unsigned int hour,
                            const unsigned int min, const unsigned int sec);
@@ -48,13 +71,7 @@ extern void set_normalized_timespec(struct timespec *ts, time_t sec, long nsec);
  * Returns true if the timespec is norm, false if denorm:
  */
 #define timespec_valid(ts) \
-       (((ts)->tv_sec >= 0) && (((unsigned) (ts)->tv_nsec) < NSEC_PER_SEC))
-
-/*
- * 64-bit nanosec type. Large enough to span 292+ years in nanosecond
- * resolution. Ought to be enough for a while.
- */
-typedef s64 nsec_t;
+       (((ts)->tv_sec >= 0) && (((unsigned long) (ts)->tv_nsec) < NSEC_PER_SEC))
 
 extern struct timespec xtime;
 extern struct timespec wall_to_monotonic;
@@ -78,6 +95,7 @@ extern long do_utimes(int dfd, char __user *filename, struct timeval *times);
 struct itimerval;
 extern int do_setitimer(int which, struct itimerval *value,
                        struct itimerval *ovalue);
+extern unsigned int alarm_setitimer(unsigned int seconds);
 extern int do_getitimer(int which, struct itimerval *value);
 extern void getnstimeofday(struct timespec *tv);
 
@@ -90,9 +108,9 @@ extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
  * Returns the scalar nanosecond representation of the timespec
  * parameter.
  */
-static inline nsec_t timespec_to_ns(const struct timespec *ts)
+static inline s64 timespec_to_ns(const struct timespec *ts)
 {
-       return ((nsec_t) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
+       return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
 }
 
 /**
@@ -102,9 +120,9 @@ static inline nsec_t timespec_to_ns(const struct timespec *ts)
  * Returns the scalar nanosecond representation of the timeval
  * parameter.
  */
-static inline nsec_t timeval_to_ns(const struct timeval *tv)
+static inline s64 timeval_to_ns(const struct timeval *tv)
 {
-       return ((nsec_t) tv->tv_sec * NSEC_PER_SEC) +
+       return ((s64) tv->tv_sec * NSEC_PER_SEC) +
                tv->tv_usec * NSEC_PER_USEC;
 }
 
@@ -114,7 +132,7 @@ static inline nsec_t timeval_to_ns(const struct timeval *tv)
  *
  * Returns the timespec representation of the nsec parameter.
  */
-extern struct timespec ns_to_timespec(const nsec_t nsec);
+extern struct timespec ns_to_timespec(const s64 nsec);
 
 /**
  * ns_to_timeval - Convert nanoseconds to timeval
@@ -122,7 +140,7 @@ extern struct timespec ns_to_timespec(const nsec_t nsec);
  *
  * Returns the timeval representation of the nsec parameter.
  */
-extern struct timeval ns_to_timeval(const nsec_t nsec);
+extern struct timeval ns_to_timeval(const s64 nsec);
 
 #endif /* __KERNEL__ */