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Message-ID: <f39d3121-1714-e8f2-2a33-808083f4848b@redhat.com>
Date: Thu, 8 Apr 2021 20:19:32 +0200
From: David Hildenbrand <david@...hat.com>
To: Christoph Hellwig <hch@...radead.org>,
Oscar Salvador <osalvador@...e.de>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Michal Hocko <mhocko@...nel.org>,
Anshuman Khandual <anshuman.khandual@....com>,
Pavel Tatashin <pasha.tatashin@...een.com>,
Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 7/8] x86/Kconfig: Introduce
ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
On 08.04.21 15:36, Christoph Hellwig wrote:
> On Thu, Apr 08, 2021 at 02:18:03PM +0200, Oscar Salvador wrote:
>> Enable x86_64 platform to use the MHP_MEMMAP_ON_MEMORY feature.
>> +config ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
>> + def_bool y
>
> This needs to go into a common file, with the architectures just
> selecting the symbol.
>
I'd like to point out that we have plenty of counter examples. Meaning:
it's really hard to figure out what the correct way is. Unfortunately,
the correct way also doesn't seem to be documented :(
--
Thanks,
David / dhildenb
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