2 files changed, 44 insertions, 1 deletions

diff --git a/include/linux/compat.h b/include/linux/compat.h
index f9ca534787e2..c9ab2a26348c 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -161,5 +161,25 @@ int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
 int get_compat_sigevent(struct sigevent *event,
 		const struct compat_sigevent __user *u_event);
 
+static inline int compat_timeval_compare(struct compat_timeval *lhs,
+					struct compat_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;
+}
+
+static inline int compat_timespec_compare(struct compat_timespec *lhs,
+					struct compat_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;
+}
+
 #endif /* CONFIG_COMPAT */
 #endif /* _LINUX_COMPAT_H */
diff --git a/include/linux/time.h b/include/linux/time.h
index 7b4dc36532bb..d9cdba54b789 100644
--- 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);