diff options
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 8df5e327ec55..08446635cbd8 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -103,6 +103,18 @@ (((__x) - ((__d) / 2)) / (__d)); \ } \ ) +/* + * Same as above but for u64 dividends. divisor must be a 32-bit + * number. + */ +#define DIV_ROUND_CLOSEST_ULL(x, divisor)( \ +{ \ + typeof(divisor) __d = divisor; \ + unsigned long long _tmp = (x) + (__d) / 2; \ + do_div(_tmp, __d); \ + _tmp; \ +} \ +) /* * Multiplies an integer by a fraction, while avoiding unnecessary |