diff --git a/[refs] b/[refs]
index ae2975df7801..73f235071f4c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 89dc991f0f5272c307c746fdd57d0bff382b1ba2
+refs/heads/master: c2853c8df57f49620d26f317d7d43347c29bfc2e
diff --git a/trunk/include/linux/math64.h b/trunk/include/linux/math64.h
index b8ba85544721..2913b86eb12a 100644
--- a/trunk/include/linux/math64.h
+++ b/trunk/include/linux/math64.h
@@ -6,7 +6,8 @@
 
 #if BITS_PER_LONG == 64
 
-#define div64_long(x,y) div64_s64((x),(y))
+#define div64_long(x, y) div64_s64((x), (y))
+#define div64_ul(x, y)   div64_u64((x), (y))
 
 /**
  * div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder
@@ -47,7 +48,8 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
 
 #elif BITS_PER_LONG == 32
 
-#define div64_long(x,y) div_s64((x),(y))
+#define div64_long(x, y) div_s64((x), (y))
+#define div64_ul(x, y)   div_u64((x), (y))
 
 #ifndef div_u64_rem
 static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)