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

Yury Norov yury.norov at gmail.com
Thu Jul 14 15:15:20 PDT 2022


On Tue, Jul 12, 2022 at 09:28:21AM -0700, Yury Norov wrote:
> On Wed, Jul 6, 2022 at 10:42 AM Yury Norov <yury.norov at gmail.com> 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@smile.fi.intel.com/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.
> 
> Ping?

OK, I realize that it's not the very entertaining thing to review a
headers cleanup.

Adding this into -next because there's no negative feedback (he-he).



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