cpumask: re-introduce constant-sized cpumask optimizations

[Geert Uytterhoeven]

Hi Linus,

On Mon, Mar 6, 2023 at 8:19 PM Linus Torvalds
<torvalds at linux-foundation.org> wrote:
> On Mon, Mar 6, 2023 at 3:20 AM Geert Uytterhoeven <geert at linux-m68k.org> wrote:
> > Your final commit 596ff4a09b898179 ("cpumask: re-introduce
> > constant-sized cpumask optimizations") in v6.3-rc1 introduced a
> > regression.  During Debian userspace startup, the kernel crashes with:
>
> I'm pretty sure the attached patch should fix it. If you can confirm,
> that would be lovely.

Thanks, works fine again!
Tested-by: Geert Uytterhoeven <geert+renesas at glider.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds