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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EBCE6C982EA for ; Wed, 23 Sep 2026 08:14:17 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C697C6B0088; Wed, 23 Sep 2026 04:14:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BF33D6B008A; Wed, 23 Sep 2026 04:14:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A94B56B008C; Wed, 23 Sep 2026 04:14:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 8001C6B0088 for ; Wed, 23 Sep 2026 04:14:16 -0400 (EDT) Received: from smtpin29.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 120D912070C for ; Wed, 23 Sep 2026 08:14:16 +0000 (UTC) X-FDA: 85244314512.29.8183921 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf22.hostedemail.com (Postfix) with ESMTP id 575EDC0002 for ; Wed, 23 Sep 2026 08:14:14 +0000 (UTC) Authentication-Results: imf22.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=mCJlfOwt; spf=pass (imf22.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1790151254; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=4asDkf1r4nhSOrT7R8hAyZcEQKKYrXhZ/zPFbXlZHas=; b=kWk47tB3pjRZoXgpA7fqngLXUnxBb4JHj6EpEQxd9dwuJ5/usa5Yh92YjI518SeDd5CyhA K1dD+xdOqMNLEBIcAQ/mXETK1Whn8fO3O32u1U3AUfRrDdrbtC32qvfXsE6RzyzzXL/QMz aeAtbvwKqcK3YB+W6SRifKs3LTkHt7Y= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1790151254; b=ZGb7TQ+7VKXLJjWj/eIXV3KzIaJtHbRLnMZ5+g6sGKp1F3HZLnq9dCTnuZp4Co/c4ef4Wh JrblZJfe70k5CGURUSjtmCZlVcvtqawKGS0OWteN/l8oR3WQ4n5u4o7H8XOyufdaCR8SHU v7HAV9Mk8xI1ZHaUh0VA8DmVtyojvVQ= ARC-Authentication-Results: i=1; imf22.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=mCJlfOwt; spf=pass (imf22.hostedemail.com: domain of ljs@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=ljs@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id C4D1041766; 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-Rspam-User: X-Stat-Signature: nwpurie7d3zu9omr1jh735hohrgt1oa5 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 575EDC0002 X-HE-Tag: 1790151254-537842 X-HE-Meta: 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 z2LnJgIC 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 MPsCzhef 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 N+y2IC7/ 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 kExmKtjN Uo/U+2/0GRzvfQxY9h5Yx/ED7kqC7dIPpXQT2/ksMyZkmwy3MVO9tTGu6HQyor3h0AFxGAwpg7yQ1JqNZidSbMqLzPeQskDYSCfDkHpypjQCQMDld1uOHH3BFDj0bpOEA0tpysjbhJ20TuFvarqU8/Hs+LvK/sTx52U9/EhMzwj3nuqEpA3dvf+yknqmg43XYJJzjB3VRIOyB88rs4gUy49L6rvEy5uwZALJ21KySlBTkgflKQQXVt+19moaoTX/1PmcPR1skt2m2675PSkfHPPrx9x/fs1UhQ82ErD+Rfxy3NzaJY1nyKq9XgRo+GwK+ZAv8P+Q84EU3xUCoB/g6Kovr1l9Ofdp0R4tM6xpZSZJ6ZI+HrrcCYdN/w6vOpTUy4MjttozlsOw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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