Re: [PATCH 2/3] find: micro-optimize for_each_{set,clear}_bit()

Andy Shevchenko
2021-06-19T10:50:28Z

On Fri, Jun 18, 2021 at 12:57:34PM -0700, Yury Norov wrote:
> The macros iterate thru all set/clear bits in a bitmap. They search a
> first bit using find_first_bit(), and the rest bits using find_next_bit().
>
> Since find_next_bit() is called shortly after find_first_bit(), we can
> save few lines of I-cache by not using find_first_bit().

Any number available?

--
With Best Regards,
Andy Shevchenko