diff options
Diffstat (limited to 'modules/spl')
| -rw-r--r-- | modules/spl/spl-generic.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/modules/spl/spl-generic.c b/modules/spl/spl-generic.c index 7a818add8..afaefb6b4 100644 --- a/modules/spl/spl-generic.c +++ b/modules/spl/spl-generic.c @@ -87,6 +87,30 @@ highbit(unsigned long i) } EXPORT_SYMBOL(highbit); +/* + * Implementation of div64_64(), for kernels that don't have it. + * + * Taken from a 2.6.24 kernel. + */ +uint64_t spl_div64_64(uint64_t dividend, uint64_t divisor) +{ + uint32_t high, d; + + high = divisor >> 32; + if (high) { + unsigned int shift = fls(high); + + d = divisor >> shift; + dividend >>= shift; + } else + d = divisor; + + do_div(dividend, d); + + return dividend; +} +EXPORT_SYMBOL(spl_div64_64); + int ddi_strtoul(const char *str, char **nptr, int base, unsigned long *result) { |