[PATCH] mm: split highorder pages

[firefly-linux-kernel-4.4.55.git] / include / linux / timex.h

diff --git a/include/linux/timex.h b/include/linux/timex.h
index 04a4a8cb4ed37ab150b6575b3ae9f9268967e5e7..b7ca1204e42ac6efedc5ad6a5fd78dfb8e67c549 100644 (file)
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -345,6 +345,9 @@ time_interpolator_reset(void)
 
 #endif /* !CONFIG_TIME_INTERPOLATION */
 
+/* Returns how long ticks are at present, in ns / 2^(SHIFT_SCALE-10). */
+extern u64 current_tick_length(void);
+
 #endif /* KERNEL */
 
 #endif /* LINUX_TIMEX_H */