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b=It9Dcf7Kfslfw6/YwnFy8lAUZRxSFXJnGL78NChqQb2P8uRF0c383JRl90uhrYggp cVEvILD6Y+CTt1XploB2rvs7RenBocL/CYfMzTZN47O64OmwjlOANMdlux8NksDs0o 81LBkyJoZGVFlC8RXXqUoLlYwi5G/Rbf3wUPN9PexzulwcItNPYQvQFLvcCefF0Q9Q 5rfMyqbYdtLJ/2CASqvNEOKpbaSnL0CkLlfItEkb2/fTxxaILP1fodCgzv0rMBfzVQ uDf0ZQXV46Co0AKyKTIHAzmVbdQPWCRFwX4UXTyRgVs0kRStdnLdCwGwlKyvpL750A /pbRJsGPAPzJQ== Date: Mon, 1 Jun 2026 16:47:50 +0100 From: Lorenzo Stoakes To: "David Hildenbrand (Arm)" Cc: "Vlastimil Babka (SUSE)" , Nico Pache , akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, liam@infradead.org, mhocko@suse.com, rppt@kernel.org, vbabka@suse.cz, willy@infradead.org Subject: Re: Process (was Re: [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP) collapse support Message-ID: References: <20260522150009.121603-1-npache@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam07 X-Rspam-User: X-Stat-Signature: jticxgizyp5zkh18bjm7pthwbxxqzm91 X-Rspamd-Queue-Id: EB0DD1C000C X-HE-Tag: 1780328875-899047 X-HE-Meta: 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 TvQWt4vD LadZD/sCuUsAQLX61x9rGLv0iBpcTgsBq/tbjt1vhUhMmYsZfAUX/vcmyC2EPPqw3XW3pJuSaUcJ2olleRHcw0M5SOYbc6eOURaWyv5nXGnN51tpO5k4NKM9cTyhoxj3hRd5GC1fw7nnaoKeUXz0pFRQJqgBJwo996tdqaCZeZKGpVUV9vGjfVnxS4oIp1+Ar09poTH3v2+p3nmN3j4sVUrCaIt6FkqIDLfP2Dj0LU1A9OOHExlz/2TEQy6CIIHuccBXX Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jun 01, 2026 at 05:43:11PM +0200, David Hildenbrand (Arm) wrote: > >>> and have people > >>> base work against that? > >> > >> This I'm not so sure how it would work. Assuming we have submaintainers with > >> their trees and branches, the final "stable branch" is merged from those. > > > > I feel like it could get hairy pretty quick, but I guess the key thing here is - > > maintainers resolve merge conflicts. > > > > As long as we have a specific _solid_ basis for work. > > > > I think actually this speaks to it being sensible for each submaintainer with a > > separate tree to maintain their own repos rather than branches. > > > > We need to determine what this baseline would be for each tree though. > > > > So perhaps each submaintainer tree has for-mm-next that's the stable branch from > > mm-next + any stabliised local changes. > > > > And each week this gets merged to mm-next, and everybody resets to mm-next > > stable branch? > > I think it gets way more complicated than that once we involve hotfix branches, > and dependencies between hotfixes, topic branches and all of that. And in > particular, if we have to drop a topic branch in some circumstances. > > My first step will be to understand "how would it look like without > submaintainers" when only having topic branches. > > Then, add a complexity level on top with subcomonent maintainers :) > > I'll probably schedule a session in 2 weeks. > > Whom to invite? I guess can look at the list of current, active, involved submaintainers? Can also send a general mail to linux-mm about it too? > > -- > Cheers, > > David Cheers, Lorenzo