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author | Anton Vorontsov <cbouatmailru@gmail.com> | 2008-07-30 02:05:23 +0400 |
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committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2008-07-30 02:05:23 +0400 |
commit | 9fec6060d9e48ed7db0dac0e16d0f0f0e615b7f6 (patch) | |
tree | 74b41f31a08f6500ff3dfcf64ba21e2d9a8e87e5 /include/linux/math64.h | |
parent | fece418418f51e92dd7e67e17c5e3fe5a28d3279 (diff) | |
parent | 6e86841d05f371b5b9b86ce76c02aaee83352298 (diff) | |
download | op-kernel-dev-9fec6060d9e48ed7db0dac0e16d0f0f0e615b7f6.zip op-kernel-dev-9fec6060d9e48ed7db0dac0e16d0f0f0e615b7f6.tar.gz |
Merge branch 'master' of /home/cbou/linux-2.6
Conflicts:
drivers/power/Kconfig
drivers/power/Makefile
Diffstat (limited to 'include/linux/math64.h')
-rw-r--r-- | include/linux/math64.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h index c1a5f81..c87f152 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -81,4 +81,25 @@ static inline s64 div_s64(s64 dividend, s32 divisor) } #endif +u32 iter_div_u64_rem(u64 dividend, u32 divisor, u64 *remainder); + +static __always_inline u32 +__iter_div_u64_rem(u64 dividend, u32 divisor, u64 *remainder) +{ + u32 ret = 0; + + while (dividend >= divisor) { + /* The following asm() prevents the compiler from + optimising this loop into a modulo operation. */ + asm("" : "+rm"(dividend)); + + dividend -= divisor; + ret++; + } + + *remainder = dividend; + + return ret; +} + #endif /* _LINUX_MATH64_H */ |