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 D0BACCA9ED0 for ; Mon, 12 Oct 2026 18:17:35 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id ADBA46B0088; Mon, 12 Oct 2026 14:17:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A8B636B008A; Mon, 12 Oct 2026 14:17:34 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 92C376B008C; Mon, 12 Oct 2026 14:17:34 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 6C6126B0088 for ; Mon, 12 Oct 2026 14:17:34 -0400 (EDT) Received: from smtpin12.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 051498136B for ; Mon, 12 Oct 2026 18:17:33 +0000 (UTC) X-FDA: 85314782028.12.78C6F54 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf26.hostedemail.com (Postfix) with ESMTP id 2534214000E for ; Mon, 12 Oct 2026 18:17:31 +0000 (UTC) Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=MFU2oEAL; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf26.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=david@kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1791829052; b=sZ9URXCIQmysvVCGlEQM8OAGw6ZlOAxWOUCqFduxox4Cpz7Gn/1ldpa++x2qvNMf2Any+a Pmj2nADWy1PcbOIMw3gMQhSrz/rKSKiz7RX4868dw9C4vYQIluTWalTCewDhhzFv+DS1bO z521L3lGt4Ny+3M8QZES79NtKLS6AEE= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=MFU2oEAL; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf26.hostedemail.com: domain of david@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=david@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1791829052; 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=fIhKjnB303AJDSu1eIXXYJZgJIHaSHsA3CPWC2z5itQ=; b=PodNFbOJBE6+w/io6s85sc40LGi569TihAW4TgDYc9h0X/yg3hUFWH1UM2yIDcsHR3tV0p 6Pf1owFYMbTUVUcqVlwXYNUaOBmhI7B6cl0oE9t4637anX5ffX6guBbCpTl+pgiAy8hkrc Nz8Wvyy+j03ZzyIoHvxL7Q4RjywFrX8= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 2548B41247; Mon, 12 Oct 2026 18:17:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6432F1F0089B; Mon, 12 Oct 2026 18:16:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791829051; bh=fIhKjnB303AJDSu1eIXXYJZgJIHaSHsA3CPWC2z5itQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=MFU2oEALqe68FF6gv/IQ1ExN06JDurMLB/UDkcBzexCi23KlFERMznGkImuxgser+ B3C9Sm9ZtwuolFJUxsZfmbTsJuz4ZJioHuaunxnSBY2uvGQPLe3kae72P+SGHNwU7P ZsNPdbP7A/yxv66dphePeYp7FmJtGOdqhuVSHN/uVwUd8ZRulltoNVHKVdd+biAqvE PS9ihJvgx3ZYNKK8qanxlXfCLGI/cwbV9rdIPx0f6o/UHrjfT0kRU5bjgnlfFZs5CR fmT+Lr9PAze01/3DWcVs4hBlWuWmp0XPyw+vQaWPShS4Sw9m0GmsvZtwllxIZRnUV8 5p2H6pPX4mfHQ== Message-ID: <6f71b1b0-8988-4e19-9d4a-ce8a2de8fc63@kernel.org> Date: Mon, 12 Oct 2026 20:16:56 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 21/38] uprobes: remove VM_IO, set VM_MIXEDMAP for mapped kernel pages 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-v5-21-923b70125b1e@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <20261009-b4-mmap-prepare-vma-flag-sanify-v5-21-923b70125b1e@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: czzkxnqxxdqyrj5qbhfxu1kdxpf7pmu1 X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 2534214000E X-HE-Tag: 1791829051-360035 X-HE-Meta: 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 ZckGuc4H R1hcVlSpj/rtXCxgpD0M8yR/LMtPaLjYHX4bxnuPVOzrL1GbWTICxfHi0ZVBh1HfctuF6qvk/k3dL6OgOxs3yqK47OaFwkJ+M8H+f9Hf8WWYC3dCM2mg9MI8nZ+zQnHlXuVYZv56fz7Rd8pzxgViwOD4pBNFM8afuhefH0Lmq+b5vGm3w5d5thrvWHh0W7W+rCMviOYcOBOKcGS+fg+mNCmRNCPHxHJm2N+A41vvdVAfkr5LbJbWSoV0ihi/EK8b3f6QRorKI8FKa3+jdUyhGmAavSl+3YguFQiOrkUml6vaD6BscwEcMX6w3IXYKM0aAxMa7iRGcpOwsckwZcdXADtZO16Voec0Y5BLpq5Bk0jEqf4QX5KXoZIOuAj7smv9Ej27LeQ12xq0+GJ9oTQk0VNEWhDrYuXokaxBRNlURfx0IewktTd6cxm3SMrMJM/huVOn4u7HLtXXAaNNqAUGNPbIamBH4TkIBqcecrTu+CWpT+eNUKvLPpx7v5T8D69xbIYsQQM5QdOA2lvwsqp31gD4jyu6ywAevjjwr11/d33QATMSkI0ADBqnTrBfAdnIQ7J6ENPyzB8eF9+mwmv7vbvrPgzMRbqDv30v2gAgyGRcF1e6qqtbe7cFNzE46tt6MapupohhYWm6XnRQpq4Pa8bIxV4d+AhspayT46oUpm8amt6w2vr8lVzp5MJFDKwGt7pPnc3KT3FK19MwQZVw5+zEN6P3+Bc+dMLXEMu1dPJ+pwlaZhDrt9wogMbBYlSMX2805iU1TbfZK0vf3HRL0FGW58cPNNiwFB+VfQksgf8iqZHqtn7acaLRE7B+2qt2Q+59MEnatTafln9IYQtrjagg0IQGNaA7cPf0Hr5Q0R38+iUfz50F+iSiYiNepsMBDh44nN5aMHNejjMURiwkjsN+Rq1m+HUPw2dleCMmfg7KBKqIho/iOdOknWdRbJEcsGGmw6bWTS9ar1+m7movNwZAMaaF3 9y/rQ1Wt 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 RMBqbNbD 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 V6nqTctv TSjkOvPaY05MWURLSoT1hmEc2IIJ0qlPQU8OlYsmRiieWZYrosaXbhsu1RYpBQUGsW3xuKPOnzHLpLJIlFC56eyXEpRCsfQ7OEa1yBmh4In4GhcnSb3w1IehlfwVS+7BPhvkM7rdFf3AAXCmj8b+PRvNIX4suYbt0wJgotwHc6wHGdvK/4bhKAxcY76EUgeWhzG/J1jkCAVuWztbbkbE6VSqE4YepnCbR8uutVd1zoNla+r4q7S6aF5TXi3ZC9PptMJUkcO24PK5A8rGLrqKCrJ4Bb9qz4GrAo41wlgVP4OpBlNw90sVrUXl07HGf2TWh59sfmzlrU+W7VIQrIb0IQ/kOC6P99MYNOKSMBsmXFZ1yyNWuUzsxIHB8fV47m6egvCCj9OjrRWg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 10/9/26 20:04, Lorenzo Stoakes (ARM) wrote: > These are not MMIO pages so VMA_IO_BIT is an inappropriate flag to set. > > Instead, set them VMA_MIXEDMAP_BIT as they are kernel mappings and this is > the appropriate flag to set for those. > > This provides the semantics required - no VMA merging is permitted, but > does not prevent GUP. > > However this has no meaningful impact as these are refcounted and thus can > be GUPed. > > A previous commit already prevented __mm_populate() from being invoked on > XOL areas, which VMA_IO_BIT was previously relied upon to do, so that is no > longer required. > > Both VMAs set a VMA name, so always_dump_vma() returns true before > vma_dump_size() reaches its VMA_IO_BIT check, and thus there is no change > in core dump behaviour. > > Change this for both the core xol_add_vma() function and the x86-specific > get_uprobe_trampoline() function. > > Reviewed-by: Suren Baghdasaryan > Signed-off-by: Lorenzo Stoakes (ARM) > --- > arch/x86/kernel/uprobes.c | 2 +- > kernel/events/uprobes.c | 4 ++-- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c > index 65a2de82ecd2..0f60c0d076b6 100644 > --- a/arch/x86/kernel/uprobes.c > +++ b/arch/x86/kernel/uprobes.c > @@ -715,7 +715,7 @@ static struct vm_area_struct *get_uprobe_trampoline(struct mm_struct *mm, unsign > > *new_mapping = true; > return _install_special_mapping(mm, vaddr, PAGE_SIZE, > - VM_READ|VM_EXEC|VM_MAYEXEC|VM_MAYREAD|VM_IO, > + VM_READ|VM_EXEC|VM_MAYEXEC|VM_MAYREAD|VM_MIXEDMAP, > &tramp_mapping); So these can now be GUP'ed. Let's hope that's fine ;) Acked-by: David Hildenbrand (Arm) -- Cheers, David