diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 8da35d1..02c13a3 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -969,3 +969,16 @@
 		*wtom = wall_to_monotonic;
 	} while (read_seqretry(&xtime_lock, seq));
 }
+
+/**
+ * xtime_update() - advances the timekeeping infrastructure
+ * @ticks:	number of ticks, that have elapsed since the last call.
+ *
+ * Must be called with interrupts disabled.
+ */
+void xtime_update(unsigned long ticks)
+{
+	write_seqlock(&xtime_lock);
+	do_timer(ticks);
+	write_sequnlock(&xtime_lock);
+}