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 028172765DF for ; Tue, 2 Jun 2026 12:48:02 +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=1780404483; cv=none; b=nDPZcgFXKXgMQs2nP/70+Pd2z1IpjEwjf3zgYnrTaxzdmGvno+21DYNtCgdZxe+ecV9+8u18kbA7huua7pfJVEpMXxGuVGHnTmSiK4z3kFfkiOOf6n2D1TzNicbcdUGJ2wqom30pxaxdd/ISkPatOl4XDy8ggkxv8fG26hZ0P/M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780404483; c=relaxed/simple; bh=A+MwVkUFWyt2E2x/scq7VqkOdAIYnUeRCt3Wi/LQiYg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=i4qfqxKGpSsdA8NW9Kz7EV9LggWP6bXB2V5bULbWp55BlMgffiFED2K+WF1WXAZ8gQgp7EXljI5BRQNKcPjO6WIQES7pg36Sj7thKUx1Vs5ok4ZC3fgUzThbTLnJV6CJYUktAxyzkqrlOK9BBSGAwaMYoCTpzItgkEPaF22oLQ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ad+0GGTW; 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="Ad+0GGTW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 977741F00893; Tue, 2 Jun 2026 12:48:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780404482; bh=rVzmKFXMREhqLdDCgzF/HG/O3l27gcoWsVI3aFy6nLQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=Ad+0GGTWj7Kt4Vh6j3pFaTfvZWhVgGyL6n64229bd4TndYZP1KUpBH5meMVKUNFC8 Jv0oIqwjNfSqNEMGP+Hd9vVO9JM4Yjfcj2sVlYCdgnfe0rPhhgHY/nbvyRgZDBi4fD 4dIkjHMNoaXxLqo3rWyatKC/r+RMGmuJmjCfkXTZHuV3Xhta2ZdW3gvXqIoU5TQq8o VV1FOCNhL4/AHGTz+8mYZSv8cP25v86sLrtmiQ95nK54t3iGTV4Y2jTZtYtc/ilbFz 4Q6XLiWPd1nSiplKG++LgICLAvO4F4XKT1cuM/pDOtewZKB/VKpXgi6iLBRxzbia1P Cb3SoA9I4Z0dw== Message-ID: Date: Tue, 2 Jun 2026 14:47:58 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Process (was Re: [PATCH mm-hotfixes-unstable v18 00/14] khugepaged: add mTHP) collapse support Content-Language: en-US To: "David Hildenbrand (Arm)" , Lorenzo Stoakes Cc: 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 References: <20260522150009.121603-1-npache@redhat.com> <506fed6b-8954-40fa-8b5e-c8bd8c0d004b@kernel.org> From: "Vlastimil Babka (SUSE)" Autocrypt: addr=vbabka@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 6/2/26 13:20, David Hildenbrand (Arm) wrote: > On 6/1/26 18:16, Lorenzo Stoakes wrote: >> On Mon, Jun 01, 2026 at 05:45:30PM +0200, David Hildenbrand (Arm) wrote: >>> On 6/1/26 17:41, Lorenzo Stoakes wrote: >>>> >>>> I think life will be easier with submaintainer separate trees for this honestly >>>> :) or it could become a horrible mess in one tree I think. >>> >>> Requiring contributors to submit stuff targeted at some random trees is madness :) >> >> Err what? The 'random' tree is the MAINTAINERS entry you are targeting, it's >> based on the mm-next stable branch and only diverges in the work that's been >> done specific to the subtree, what's crazy exactly? > > We'll still have plenty of patch sets that touch files cross trees. > > I don't see the problem of sending stuff against the integration tree from where > it can just be cleanly picked up by sub-maintainers (after all, that's where all > the subtrees were integrated against)? Or what exactly is the problem with that? The problem is that the patches would not be applied on top of the integration tree, so it doesn't make sense to base them on it in the first place. Unless they target the next cycle, where the integration tree would first become part of rc1, which would be the new base for all the submaintainer trees.