Re: [PATCH] mm/slab: Fix undefined init_cache_node_node() for NUMA and !SMP

[Geert Uytterhoeven]

Hi Adrian,

On Thu, Mar 23, 2023 at 9:28 AM John Paul Adrian Glaubitz
<glaubitz@xxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, 2023-03-23 at 09:25 +0100, Geert Uytterhoeven wrote:
> > It's supported. Dave just forgot to update the #ifdef around the
> > definition of init_cache_node_node() when updating an #ifdef around
> > a code block that contains one of the callers.
> >
> > P.S. To me, this discussion reminds me of the old discussion about
> >      discontigmem without NUMA. Yes, not all systems are PCs with
> >      contiguous memory on a single fast bus ;-)
>
> I'm wondering: Could the NUMA code be used to work with the different
> memory types found on the Amiga, i.e. chip RAM, fast RAM etc?

I guess so, but only for 32-bit motherboard RAM on A3000/A4000
vs. RAM on an accelerator card vs. Zorro-III RAM on e.g. BigRamPlus.
Chip RAM and Zorro-II RAM do not support RMW-cycles on
Zorro-III capable machines.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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