timekeeping: Provide ktime_get[*]_ns() helpers
A lot of code converts either timespecs or ktime_t to
nanoseconds. Provide helper functions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 64c81f3..903ecc1 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -145,6 +145,21 @@
return ktime_mono_to_any(mono, TK_OFFS_REAL);
}
+static inline u64 ktime_get_ns(void)
+{
+ return ktime_to_ns(ktime_get());
+}
+
+static inline u64 ktime_get_real_ns(void)
+{
+ return ktime_to_ns(ktime_get_real());
+}
+
+static inline u64 ktime_get_boot_ns(void)
+{
+ return ktime_to_ns(ktime_get_boottime());
+}
+
/*
* RTC specific
*/