Messages in this thread Patch in this message | | | From | Alex Shi <> | Subject | [PATCH 1/4] math64: add div64_ul | Date | Thu, 6 Jun 2013 21:30:09 +0800 |
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There are div64_long() to handle the s64/long division. But no micro do u64/ul division in kernel. It is necessary on some scenarios. So add this function.
Signed-off-by: Alex Shi <alex.shi@intel.com> --- include/linux/math64.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/math64.h b/include/linux/math64.h index b8ba855..f0afe9c 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -7,6 +7,7 @@ #if BITS_PER_LONG == 64 #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 @@ -48,6 +49,7 @@ 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_ul(x,y) div_u64((x),(y)) #ifndef div_u64_rem static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) -- 1.7.5.4
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