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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 07C3ACA9ED0 for ; Mon, 12 Oct 2026 18:54:07 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4j3RT9531tz3bpH; Tue, 13 Oct 2026 05:54:05 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.234.252.31 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1791831245; cv=none; b=O2hRU6I09jjYis1D5qRF16k44gfPMezTIWd99PnVKFWOYIqxcwzfzitoWErDdSomKWg4WRuY8gsodV8/b0mK+6xbdqksPw4/nE+x/w4e8eamuGR0SJuiau4IUJCsEC9LCR5eon+Eh4mqDe7JYLpO7JC5044XPl9K60TsOeUQujbMcHLC9l94klnROF5qkHsHobYx5TMjulhDIMrq6zPY74KRBo1i1knzJHEjDMzN9YozCoFk6sKJisGPocfoiH0m7XN9IJNS7IVVS3ahCakRch0I1uV4n1arYD5MiTQddUWAFpZgWWGPr3gJqu9QYapYixKsaZftSPnqkalBb7VBFA== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1791831245; c=relaxed/relaxed; bh=/LzN6QFYSsA+fcmS211ot+Qp65prbM+0x7Y3py3WXwI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=DWSzIoVL2bjCi60x5IRrxkdC+7O0DefVC8vl3oyE8Oh63JfonVm//kq2+927zxHnyD5BRBviFpF1EqCo97NOXRGLZZyGie8wlEK9brQ2QJR0glp6PnGYOlLK8bjYZtAFUZ4GvRCNHKUmCF4OhnWJbQO1B02kBDn8uKfAc2jJ/zldgZquKGilsiB8aVzM2WLXso3go1svO4uaLfLeBeBvq4r+v5YKzUH+L7bLJocf/B/iN6l6vaLr+0f5zKK52s9KcprgwBOIzOFi+TPJ+74NJEEPznlfomfOcfyse8jI/mP+sezoUGHTce4IziOI6Gcs1eUaMOwVbagBZA4lUrs+VA== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Cdad94l3; dkim-atps=neutral; spf=pass (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=david@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Cdad94l3; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=david@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4j3RT86q65z2xyk for ; Tue, 13 Oct 2026 05:54:04 +1100 (AEDT) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 51A5C437C6; Mon, 12 Oct 2026 18:54:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5128E1F0089B; Mon, 12 Oct 2026 18:53:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791831243; bh=/LzN6QFYSsA+fcmS211ot+Qp65prbM+0x7Y3py3WXwI=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=Cdad94l3/djhic99Bhd0ObG6C9U/C2CLrUE1lnyVHNjSsnckIVbfbC8gITgmKnRX1 Ng0cl01itPkjwqWZ8HXQOhijaLgVbwHhhfx0wpkrF4VjvbQv9wj7oIG0uhuwb2MieL nFrM6c3TFAC31S2511GqSuww8ft/27QVjBhLuGUN0OMyF1qHmN4o2bKkSkr8PsmEse xKKxIbkYoBm+BrvdRQO/8Asb/AXtmVx0Fkv0c2DWvv8y0lmRL9Qdg2cfSOlXLrrds/ g/VuG4q2KvwqvUKiuRTRsV6x7w5z6/xHOWetfu/xkcZvo7EFPXfnYKr9gOVnLL05of nQSHFxLN66GKg== Message-ID: Date: Mon, 12 Oct 2026 20:53:26 +0200 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 38/38] mm/huge_memory: remove vma_is_special_huge() To: "Lorenzo Stoakes (ARM)" , Andrew Morton , "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" , 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 Cc: 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, Ihor Solodrai , Bert Karwatzki References: <20261009-b4-mmap-prepare-vma-flag-sanify-v5-0-923b70125b1e@kernel.org> <20261009-b4-mmap-prepare-vma-flag-sanify-v5-38-923b70125b1e@kernel.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 10/9/26 20:04, Lorenzo Stoakes (ARM) wrote: > vma_is_special_huge() tests whether either the VMA_PFNMAP_BIT or > VMA_MIXEDMAP_BIT is set (i.e. whether the VMA is not mm-managed), > but with a DAX carve-out. > > DAX however no longer sets VMA_MIXEDMAP_BIT, so this carve-out is no longer > required. > > Therefore test for !vma_is_mm_managed() instead and also drop the > VMA_IO_BIT check, as it is now redundant since it is enforced that > mm-managed mappings may not set VMA_IO_BIT. > > This also eliminates another overloaded use of 'special' within mm. > > No functional change intended. > > Acked-by: Zi Yan > Signed-off-by: Lorenzo Stoakes (ARM) > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 AB3EBCA9EDE for ; Mon, 12 Oct 2026 18:54:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=4JZHpVG/p4nkMz2FQR4fyFnDsvfH+vfPgCfhWhWXNPE=; b=LXXmNFTGKFatSU q1D3RLZQ/YDTTfqi+gDqrvxp/ebEyCP9K12bt7Tk9wmqS/D/k7MUEtiiv984auid8vUgCfkkGjgnG BltDQc1fX09mDNEx1XddysbivwzJe/gp5gwP2r5fpdnTeMo6wqbQagCT9pvzrKFLwR7Q/ySoIiZfd 8+J6ZforzSTsJwptfyDYSacWFiIw7RuU2eXt6tZBOYWErdmiubSqmvxWNZHnkg+M9FbY2elJmcLUb Vh2SOm9J8D4yrMm5t8KVaPqUn6Kj19KNJVrVF+TdPHiJSR/hqI8YtZsat84SD38I/S35S4uTp4v7+ 8fBRpBF9AhVwqJAH1x5w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGL9x-0000000BIl7-1cnt; Mon, 12 Oct 2026 18:54:05 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGL9v-0000000BIkf-2gtJ; Mon, 12 Oct 2026 18:54:03 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 51A5C437C6; Mon, 12 Oct 2026 18:54:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5128E1F0089B; Mon, 12 Oct 2026 18:53:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791831243; bh=/LzN6QFYSsA+fcmS211ot+Qp65prbM+0x7Y3py3WXwI=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=Cdad94l3/djhic99Bhd0ObG6C9U/C2CLrUE1lnyVHNjSsnckIVbfbC8gITgmKnRX1 Ng0cl01itPkjwqWZ8HXQOhijaLgVbwHhhfx0wpkrF4VjvbQv9wj7oIG0uhuwb2MieL nFrM6c3TFAC31S2511GqSuww8ft/27QVjBhLuGUN0OMyF1qHmN4o2bKkSkr8PsmEse xKKxIbkYoBm+BrvdRQO/8Asb/AXtmVx0Fkv0c2DWvv8y0lmRL9Qdg2cfSOlXLrrds/ g/VuG4q2KvwqvUKiuRTRsV6x7w5z6/xHOWetfu/xkcZvo7EFPXfnYKr9gOVnLL05of nQSHFxLN66GKg== Message-ID: Date: Mon, 12 Oct 2026 20:53:26 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 38/38] mm/huge_memory: remove vma_is_special_huge() To: "Lorenzo Stoakes (ARM)" , Andrew Morton , "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" , 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 Cc: 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, Ihor Solodrai , Bert Karwatzki References: <20261009-b4-mmap-prepare-vma-flag-sanify-v5-0-923b70125b1e@kernel.org> <20261009-b4-mmap-prepare-vma-flag-sanify-v5-38-923b70125b1e@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+kvm-riscv=archiver.kernel.org@lists.infradead.org On 10/9/26 20:04, Lorenzo Stoakes (ARM) wrote: > vma_is_special_huge() tests whether either the VMA_PFNMAP_BIT or > VMA_MIXEDMAP_BIT is set (i.e. whether the VMA is not mm-managed), > but with a DAX carve-out. > > DAX however no longer sets VMA_MIXEDMAP_BIT, so this carve-out is no longer > required. > > Therefore test for !vma_is_mm_managed() instead and also drop the > VMA_IO_BIT check, as it is now redundant since it is enforced that > mm-managed mappings may not set VMA_IO_BIT. > > This also eliminates another overloaded use of 'special' within mm. > > No functional change intended. > > Acked-by: Zi Yan > Signed-off-by: Lorenzo Stoakes (ARM) > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David -- kvm-riscv mailing list kvm-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kvm-riscv