linux-kernel - Re: [PATCH] mm/slab: Fix undefined init_cache_node

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Date:   Thu, 23 Mar 2023 09:28:17 +0100
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Matthew Wilcox <willy@...radead.org>
Cc:     Dave Hansen <dave.hansen@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Arnd Bergmann <arnd@...db.de>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>, linux-mm@...ck.org,
        linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: [PATCH] mm/slab: Fix undefined init_cache_node_node() for NUMA
 and !SMP

Hi Geert!

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?

Adrian

-- 
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