Re: [PATCH v2 00/10] lib: cleanup bitmap-related headers

[Yury Norov]

On Wed, Jul 6, 2022 at 10:42 AM Yury Norov <yury.norov@xxxxxxxxx> wrote:
>
> This series unifies declarations of bitmap-related functions and aligns
> return types with values that actually returned. Also, it moves one-liner
> wrappers around cpumask functions into headers, so that compiler has a
> chance to optimize better.
>
> With this series, GCC 11.2 for ARM64 with kernel v5.19-rc4:
> add/remove: 15/7 grow/shrink: 461/164 up/down: 14844/-4580 (10264)
>
> This +10K didn't surprise me because  modern compilers are more aggressive
> in inlining, loop unrolling, and other techniques that increase size of
> the image.
>
> v1: https://lore.kernel.org/linux-mm/YsAzU3g2QpgmIGre@xxxxxxxxxxxxxxxxxx/T/
> v2: - Align whitespaces in headers;
>     - Make bitmap_weight() unsigned long consistently;
>     - Pick 2 patches from Ingo's sched/headers series [1] that split
>       linux/gfp.h, and drop my similar patch for it.

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