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 46C0344AB6B; Fri, 18 Sep 2026 20:21:03 +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=1789762864; cv=none; b=At78aW6zhwFDIMaj3NzgC3upkFP5MBhLNmHLwh/KRPbAvKYksM1O2HdPATcNQpuxMcDK5Odikyr542KvW+pMWeDOvoYaHLtz0anmhx5Y/zBh2Gifp9gMH9EPcRVAsbjmSOIz0GqfRumyNRPKQovEcy6e2Xf+q9vhpi88+zBUn14= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789762864; c=relaxed/simple; bh=azlxrbn+NnkNuE4YAHISYDnwn2oYdZK1G+9IWJiUqxI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=gCeGQcXWRTitGQso5W2UXxa6f6T595l5pj0GEmeUJTCZiG/SBuXj7sMzRS2OIp6bY5l1svQRunZtXNepjQCO5/tOYGfBn26LIefuD/ksVu0HX0uFXm9Yhd290ALEZD5DW4Au7LmWAMK7ManUVt5c36CZMYCPGR0E74VHhlQQQkQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=K5I4A1B2; 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="K5I4A1B2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4B51D1F000FF; Fri, 18 Sep 2026 20:20:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789762863; bh=U9Btssn2Vdt4f1rDfXSpe3SvMf7Al9iM0BYQM0epkxU=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=K5I4A1B26PMHt8oPJgzgCMhlS4wSzBW0xEdgRbYlFQ1L5+hcNK9ojIVPnuzpqrdbT jd7Bsbd9/3qi1WJCFDFEn1cF/K3pKWl1vPLikx7h1QC9/76xJNN+kAQuaQvJ8YE1y2 kp3ao0JkBouMOZwr3Ia5Qz68qTIGvmqoUZjV0y0o/Wkk80NxQReNfEfIzJxvF5Hf+T 86SBEURe95FNDjfSYUC0ZfDHH/jL97aBVufgWmldki1cC3Q6moSNid+uoLdUysA5vW IHkh/zc5jxj/o9IiRwQtcD5yXGTXsyAfIhh+Wx3RP0y/ENE5y4vHqvd4IhEKCME0UR kkCkah9a/d9Pg== Message-ID: <0b064fe6-ddb3-4f26-a1f2-2e9dd88d590f@kernel.org> Date: Fri, 18 Sep 2026 22:20:28 +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: [PATCH v2 00/40] mm: make VMA flag semantics explicit, eliminate VM_SPECIAL To: Andrew Morton , "Lorenzo Stoakes (ARM)" Cc: "Liam R. Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jonathan Corbet , Greg Kroah-Hartman , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Paul Moore , Stephen Smalley , Jaroslav Kysela , Takashi Iwai , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Zi Yan , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Kiryl Shutsemau , Doug Gilbert , "James E.J. Bottomley" , "Martin K. Petersen" , Jaya Kumar , Simona Vetter , Helge Deller , Sebastian Reichel , John Hubbard , Peter Xu , Masami Hiramatsu , Oleg Nesterov , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Rik van Riel , Harry Yoo , Juri Lelli , Vincent Guittot , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Will Deacon , "Aneesh Kumar K.V" , Nick Piggin , Arnd Bergmann , Muchun Song , Oscar Salvador , "Matthew Wilcox (Oracle)" , Jan Kara , Marc Zyngier , Oliver Upton , Catalin Marinas , Madhavan Srinivasan , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , "David S. Miller" , Andreas Larsson , Alexander Viro , Christian Brauner , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Youngjun Park , Johannes Weiner , Qi Zheng , Shakeel Butt , Axel Rasmussen , Yuanchu Xie , Wei Xu , Chengming Zhou , Michal Hocko , Miklos Szeredi , Xu Xin , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-usb@vger.kernel.org, linux-rdma@vger.kernel.org, selinux@vger.kernel.org, linux-sound@vger.kernel.org, bpf@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-trace-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, fuse-devel@lists.linux.dev, Takashi Iwai References: <20260914-b4-mmap-prepare-vma-flag-sanify-v2-0-7d9781ed5361@kernel.org> <20260914180811.057cba8fcc48d6e0b53a2683@linux-foundation.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/15/26 03:08, Andrew Morton wrote: > On Mon, 14 Sep 2026 15:57:20 +0100 "Lorenzo Stoakes (ARM)" wrote: > >> The VM_SPECIAL / VMA_SPECIAL_FLAGS mask conflates several unrelated >> properties: >> >> ... >> >> It's all rather a mess. >> >> This series brings some order to things by both limiting what drivers can >> do with VMA flags and switching to using predicates that describe >> behaviour, not arbitrary flags. > > That's a lot of patches. > > Review is thin and I expect this won't improve a lot. Lots of "no > functional changes" changes. I'll expect to go through all of them. Might just take a bit ;) -- Cheers, David