Re: [GIT PULL] iscsi-target merge for v3.1-rc1

Alexey Dobriyan
2011-07-26T10:14:09Z

On Tue, Jul 26, 2011 at 1:08 PM, Olivier Galibert <galibert@pobox.com> wrote:
> On Tue, Jul 26, 2011 at 12:09:40AM -0700, Linus Torvalds wrote:
>> And it just looks unnecessarily complicated. Just a simple
>>
>> #define DIV_ROUND_UP_ULL(ll,d) \
>>   ({ unsigned long long _tmp = (ll)+(d)-1; do_div(_tmp, d); _tmp; })
>>
>> looks like it would work and be simpler. Avoid the conditional, do the
>> same "add 'd-1' thing as the regular ROUND_UP().
>>
>> Untested. And not much thinking involved.
>
> Overflow risk?  Of course DIV_ROUND_UP has the same issue, and looks
> slight easier to trigger, maybe.

Can we please make DIV_ROUND_UP to demultiplex based on argument type inside?