From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D26EDF6C for ; Mon, 1 Jun 2026 15:47:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780328876; cv=none; b=RTi/lHzXIsvMTZGdLIgeRvYWqFQbpfi9W4ALv/Txr8K+qUoN0TfR/ll0LpmvjR1UReIKzuLX2giMjrljYDLXH6uOQMWpfPMBKLorTJQ6HnIo+JtRXjv4pH2GgFjpqvVM+HzrOfkqexO7x0VfaaoiyGH0qggnoZ0qPY+HWSn3UHg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780328876; c=relaxed/simple; bh=qha978NEHgz7xh7UWTrfd7Bjy8V76zrJKNnrotIFLtM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=iUyo8kOSYzjXbxGBTVpuoregN/uEe5NJ+fiTgwKmtX0RO8yTFLLQDcRKBJPnXPa2xQaXO68t+ZPqgmYBTBQeCPHOz3XkVLI4QvVhugDHo4TtuGYd7U0+yPIfDrd292XLh/vXohdUvAZEje4dbj5I+5YzWaTpnbiecmCLn0E7zug= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=It9Dcf7K; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="It9Dcf7K" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5549D1F00898; Mon, 1 Jun 2026 15:47:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780328875; bh=qha978NEHgz7xh7UWTrfd7Bjy8V76zrJKNnrotIFLtM=; h=Date:From:To:Cc:Subject:References:In-Reply-To; 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> 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: 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