diff --git a/[refs] b/[refs]
index 6ce67933ed0c..dc50d822369d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 388186bc920d9200202e4d25de66fa95b1b8fc68
+refs/heads/master: 80376f347d70ce5fcfb98105d83624518e0911d6
diff --git a/trunk/arch/s390/include/asm/timex.h b/trunk/arch/s390/include/asm/timex.h
index 88829a40af6f..d610bef9c5e9 100644
--- a/trunk/arch/s390/include/asm/timex.h
+++ b/trunk/arch/s390/include/asm/timex.h
@@ -86,6 +86,17 @@ static inline void get_clock_ext(char *clk)
 	asm volatile("stcke %0" : "=Q" (*clk) : : "cc");
 }
 
+static inline unsigned long long get_clock_fast(void)
+{
+	unsigned long long clk;
+
+	if (test_facility(25))
+		asm volatile(".insn	s,0xb27c0000,%0" : "=Q" (clk) : : "cc");
+	else
+		clk = get_clock();
+	return clk;
+}
+
 static inline unsigned long long get_clock_xt(void)
 {
 	unsigned char clk[16];