include/linux/math64.h: add div64_ul()
There is div64_long() to handle the s64/long division, but no mocro do
u64/ul division. It is necessary in some scenarios, so add this
function.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Alex Shi <alex.shi@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/math64.h b/include/linux/math64.h
index b8ba855..2913b86 100644
--- a/include/linux/math64.h
+++ b/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 @@
#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)