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[95.203.26.253]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54ea94f6996sm2260787e87.236.2025.05.07.02.59.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 May 2025 02:59:11 -0700 (PDT) From: Uladzislau Rezki X-Google-Original-From: Uladzislau Rezki Date: Wed, 7 May 2025 11:59:08 +0200 To: Lorenzo Stoakes , David Hildenbrand Cc: Uladzislau Rezki , David Hildenbrand , Andrew Morton , Jason Gunthorpe , John Hubbard , Peter Xu , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vlastimil Babka Subject: Re: [PATCH] MAINTAINERS: add mm GUP section Message-ID: References: <20250506173601.97562-1-lorenzo.stoakes@oracle.com> <20250506162113.f8fa0c00e76722a1789ec56a@linux-foundation.org> <13a32f52-dc5c-45ef-b45a-585586868509@lucifer.local> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <13a32f52-dc5c-45ef-b45a-585586868509@lucifer.local> On Wed, May 07, 2025 at 10:23:34AM +0100, Lorenzo Stoakes wrote: > +cc Vlastimil for page_alloc.c stuff. > > On Wed, May 07, 2025 at 11:02:00AM +0200, Uladzislau Rezki wrote: > > On Wed, May 07, 2025 at 10:05:58AM +0200, David Hildenbrand wrote: > > > On 07.05.25 01:21, Andrew Morton wrote: > > > > On Tue, 6 May 2025 18:36:01 +0100 Lorenzo Stoakes wrote: > > > > > > > > > As part of the ongoing efforts to sub-divide memory management > > > > > maintainership and reviewership, establish a section for GUP (Get User > > > > > Pages) support and add appropriate maintainers and reviewers. > > > > > > > > > > > > > Thanks, I was wondering about that. > > > > > > Thanks Lorenzo for driving this! > > > > > > Acked-by: David Hildenbrand > > Thanks David! > > Am trying to strike while the iron is hot post-lsf and discuss with people and > set things in motion :) > > > > > > > > > > > > (looks at vmscan.c) > > > > > > Current maintainers (mm/unstable) on 20 biggest files in mm, Andrew is > > > implicit: > > > > > > $ find mm -name "*.c" -type f | xargs wc -l | sort -n -r | head -20 > > > 198195 total > > > 7937 mm/hugetlb.c # Muchun > > > 7881 mm/slub.c # Christoph/David/Vlastimil > > > 7745 mm/vmscan.c # > > This is, as Andrew rightly points out, a key one, I will have a look around > the git history and put something together here. I'm not sure if we will > get an M here, but at least can populate some reviewers. > > > > 7424 mm/page_alloc.c # > > Yeah Vlastimil put effort into sorting out reviewers here (thanks > Vlastimil!) but nobody's stepped up for an M yet :) > > > > 7166 mm/memory.c # David > > > 5962 mm/shmem.c # Hugh > > > 5553 mm/memcontrol.c # Johannes/Roman/Shakeel > > > 5245 mm/vmalloc.c # > > As discussed below 100% Ulad is very clearly the right guy for M (and who > has graciously offered his services as such) :>) > > Ulad - do you want to send a patch upgrading yourself there? cc me and > David, I will happily ack of course, and I suspect David as well! > I will :) > > > 4703 mm/huge_memory.c # David > > > 4538 mm/filemap.c # Willy > > > 3964 mm/swapfile.c # > > The various discussions at LSF lend themselves to suggesting people here, > can take a look at this also. > > > > 3871 mm/ksm.c # > > As per discussion below, thanks for suggesting yourself David, I hope this > is a case of 'well de facto I am maintaining this' rather than taking > anything new on, as I worry about how much your workload involves :P > > I will sniff around the git history too and put something together. > > > > 3720 mm/gup.c # David > > > 3675 mm/mempolicy.c # > > Ack below, and will take a look here also. > > > > 3371 mm/percpu.c # Dennis/Tejun/Christoph > > > 3370 mm/compaction.c # > > As you say lots of R's which is good. > > As per below would you want M for this? > > I will take a look also. > > > > 3197 mm/page-writeback.c # Willy > > > 3097 mm/vma.c # Liam/Lorenzo > > > 2988 mm/rmap.c # David/Lorenzo > > > > > > > I've been messing with KSM for a long time, so I could easily jump in as > > > maintainer for that. Probably we want page migration (incl. mempolicy?) as a > > > separate entry. I've been messing with that as well (and will be messing > > > more), so I could jump in for that as well. > > > > > > For page allocator stuff (incl. compaction) we at least have plenty of > > > reviewers now. For vmalloc we at least have Uladzislau as single reviewer. > > > > > > vmscan.c and vmalloc.c really need some love. > > > > > As for "vmalloc.c" i can jump in as an extra maintainer aside with > > Andrew if no objections. > > Entirely the opposite of an objection, I'd be aghast if you weren't a > maintainer there, thank you for your excellent work in vmalloc, you're a > top chap and we're very lucky to have you working on this! > Thank you i send out that patch today and put into CC you and David! -- Uladzislau Rezki