Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

[powerpc.git] / include / linux / timex.h

diff --git a/include/linux/timex.h b/include/linux/timex.h
index 9a24e50..da929db 100644 (file)
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -286,6 +286,13 @@ static inline void time_interpolator_update(long delta_nsec)
 
 #define TICK_LENGTH_SHIFT      32
 
+#ifdef CONFIG_NO_HZ
+#define NTP_INTERVAL_FREQ  (2)
+#else
+#define NTP_INTERVAL_FREQ  (HZ)
+#endif
+#define NTP_INTERVAL_LENGTH (NSEC_PER_SEC/NTP_INTERVAL_FREQ)
+
 /* Returns how long ticks are at present, in ns / 2^(SHIFT_SCALE-10). */
 extern u64 current_tick_length(void);