diff options
| author | Alex Shi <alex.shi@intel.com> | 2013-06-12 23:05:10 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-06-13 01:29:47 +0200 |
| commit | c2853c8df57f49620d26f317d7d43347c29bfc2e (patch) | |
| tree | 4aa0a7f658e1db70c0f8e903cda95590bdb9b1c5 /include | |
| parent | mm: memcontrol: fix lockless reclaim hierarchy iterator (diff) | |
| download | linux-c2853c8df57f49620d26f317d7d43347c29bfc2e.tar.xz linux-c2853c8df57f49620d26f317d7d43347c29bfc2e.zip | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/math64.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h index b8ba85544721..2913b86eb12a 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 @@ 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) |