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Mon, 12 May 2025 07:38:46 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id wMBCEoalIWiiDgAAD6G6ig (envelope-from ); Mon, 12 May 2025 07:38:46 +0000 Message-ID: Date: Mon, 12 May 2025 09:38:46 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] MAINTAINERS: add mm GUP section To: Lorenzo Stoakes , David Hildenbrand , Zi Yan Cc: Uladzislau Rezki , Andrew Morton , Jason Gunthorpe , John Hubbard , Peter Xu , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20250506173601.97562-1-lorenzo.stoakes@oracle.com> <20250506162113.f8fa0c00e76722a1789ec56a@linux-foundation.org> <13a32f52-dc5c-45ef-b45a-585586868509@lucifer.local> <28428030-1178-469a-a4ab-f1e7179d9106@lucifer.local> Content-Language: en-US From: Vlastimil Babka In-Reply-To: <28428030-1178-469a-a4ab-f1e7179d9106@lucifer.local> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam10 X-Stat-Signature: fqk6skdmbyxheohq95uztuwkb13xmnho X-Rspamd-Queue-Id: 45904120003 X-Rspam-User: X-HE-Tag: 1747035528-971363 X-HE-Meta: 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 DusxUvbC Es1ZxRuhOcxLKYSdprUHTkaFes4CCKdSj5V4ISqG/OL/UPlt990EsGliWGcK/5oHFyZ25oO+10OgUL3r8ztCu954nLGotxGCerCdvAagsDI1h6SobjZolH8/WsUh4w3S2LTIV4uCwg2kCdrMh79Zt9O2UIdXZil7hsXfXZcflA6yEg5RjWUIo0rsKWSiA36aItA9DIQKpjkWVjwnEVlHvNN5Of/B6BG1+25pnakw1SOUw8yUkWhcmMGXhV/MnksAIqHiv7+A81qegTOUTq7gtbtTwGC9jJEUkFI4d X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 5/8/25 14:23, Lorenzo Stoakes wrote: >> >> M for "PAGE ALLOCATOR", hmmm ..., I was hoping that Vlastimil might have >> capacity for that? :) > > Vlastimil? ;) > > I'd certainly support this. OK, can do, thanks. >> >> >> >> Not 100% sure what to do with >> >> * include/linux/page_isolation.h >> * mm/page_isolation.c >> >> (I hate the word "page isolation") >> >> They are mostly about page migration (either for alloc_contig... or memory >> hotunplug). Likely they should either go to the MIGRATION section or to the >> PAGE ALLOCATOR? Maybe MIGRATION makes more sense. Thoughts? > > I mean it explicitly relates to migrate type and migration so seems to me > it ought to be in migration. > > Though migrate type + the machinary around it is a product of the physical > page allocator (I even cover it in the 'physical memory' section of the > book). > > I wonder if our soon-to-be page allocator maintainer Vlastimil has > thoughts? ;) > > I'd vote for migration though to be honest. I checked the code briefly and although migratetypes are related to migration, it seems rather page allocator code to me. In fact if I didn't miss these files, I would have included them when proposing the PAGE ALLOCATOR section. Zi Yan has a series on that topic now and is one of the R: in PAGE ALLOCATOR. What do you think? >> >> -- >> Cheers, >> >> David / dhildenb >>