From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5D43CC98321 for ; Fri, 25 Sep 2026 07:30:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7D4F510F8C8; Fri, 25 Sep 2026 07:30:45 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="mCJlfOwt"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id C63F410E826 for ; Wed, 23 Sep 2026 08:14:13 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id F2520600AA; Wed, 23 Sep 2026 08:14:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 376301F000FF; Wed, 23 Sep 2026 08:13:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790151252; bh=4asDkf1r4nhSOrT7R8hAyZcEQKKYrXhZ/zPFbXlZHas=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=mCJlfOwtX67y203buKELQIT2TJkfDrkJVRWjviTUThii3FIl01hNmt/2/N5niDJsO pMfVhn9hKYcyv1hPNTj3q8nO0Pds6VFO+rGQe1AtibuYmlGhfEvG5fzsVNd5VZj00d fkgcgDIaUfRNs16fD4U8B+bk8I0EVqFfud76K+T15hPjY5Wnzx7h17G1IEpBvKdbdT fwOMBpLGIgd0Nxsna3HHhcpWKXrmzcnrf1IYhuJaw4NDIion+IMG6MmbJbYDpOjNxG ds54K/vBGhy978o0s9QlAtQmkuOq1eOy+SdadnN3yilV4MeGzEJApyN21XCzbDlSMz y5uiJtnDQNScw== Date: Wed, 23 Sep 2026 09:13:40 +0100 From: "Lorenzo Stoakes (ARM)" To: Suren Baghdasaryan Cc: "David Hildenbrand (Arm)" , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Mike Rapoport , 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 Subject: Re: [PATCH v2 00/40] mm: make VMA flag semantics explicit, eliminate VM_SPECIAL Message-ID: References: <20260914-b4-mmap-prepare-vma-flag-sanify-v2-0-7d9781ed5361@kernel.org> <20260914180811.057cba8fcc48d6e0b53a2683@linux-foundation.org> <0b064fe6-ddb3-4f26-a1f2-2e9dd88d590f@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Mailman-Approved-At: Fri, 25 Sep 2026 07:30:44 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Sat, Sep 19, 2026 at 04:09:13PM +0100, Lorenzo Stoakes (ARM) wrote: > On Sat, Sep 19, 2026 at 04:05:57PM +0100, Lorenzo Stoakes (ARM) wrote: > > On Fri, Sep 18, 2026 at 01:31:24PM -0700, Suren Baghdasaryan wrote: > > > On Fri, Sep 18, 2026 at 1:21 PM David Hildenbrand (Arm) > > > wrote: > > > > > > > > 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 ;) > > > > > > ditto > > > > Thanks guys! > > Note v3 has been posted to fix a stupid bug in 1/40 + attack some very trivial > sashiko stuff > > https://lore.kernel.org/linux-mm/20260917-b4-mmap-prepare-vma-flag-sanify-v3-0-4583d8a23bca@kernel.org/ Just a gentle nudge on this :) If you guys or anybody else has some time it'd be appreciated! (obv. the v3 as linked above not this v2!) I know the series seems intimidating but most of the commits are very small and it's been in -next for a while. > > > > > > > > > > > > > > -- > > > > Cheers, > > > > > > > > David > > > > -- > > Cheers, Lorenzo > > -- > Cheers, Lorenzo -- Cheers, Lorenzo