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 04404C982FA for ; Wed, 23 Sep 2026 11:49:30 +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:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=pKyWL/VjX3rRMT9wnkhQ7t+99BljlEl9SJQP22YQnBo=; b=3ZRWDdFyUbVCLI sJN+A8fcHZ8q0YxBRyxkhqBcmDMwiLsxeey9rrJcikgc164/Eh9OQzJ0sfwEWPmJW02ILOnWp5GEA I4c0ATqs1vhiytXyE2gEfAqtR/Eh5sWHvqA4AefpYgJ5OpS31cT/W3+yY2ivUeHpa/I2Uh6TK0reb 5fziH9+2L8VIsxK5erp2mtv40P0ymT/CGyDE5lvCuJAER8wOX02MNNCozxJ0P7G7g1bpIspi9Gndb aa6knPV1qqa1rSyUuXiga6gxvufiUi08c005PCxZvRv8RW9alfcKpNPZ35JYtHcWSUhs882oyT5h2 nFJw+QFOHxL6Y0GAE+WQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x9LTO-000000087so-31vq; Wed, 23 Sep 2026 11:49:14 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x9LTM-000000087sN-0pom; Wed, 23 Sep 2026 11:49:12 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 15EAD40A5F; Wed, 23 Sep 2026 11:49:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 19B941F000FF; Wed, 23 Sep 2026 11:48:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790164151; bh=Z18U4qa6LbbRW6yI1ebVsuAYdmDir8PYv46mTQmvxDM=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=D0HspulTyBdCQX+9DDqdK27FApcPCCvh0cfa5A2rbZhHewxbqqnqFfAC7nocs+kP2 0mvVh8QH9qXFX6+3roRxbIQueQ3TPhzi292qpq9D3xRZZ5wrxeyaLz+2QvciRn8RF2 FVQ8S8jycXpuDyJ9rlAicpdmH0A4zO0K41QTIIgv5uUQwQu8Cyh3/fZ149W1dOnWWV yYYskNeHf77UMMMQLOJF6vyT4QfBuWnpw9G3F145FYd/VJTxiJBTwTSUUZpHmcLZ58 JQgdeq38PegQ/KA2Ovq2zM3pjhtITbOaI5GbiIAo2djGnpsU4gEkvZ674V/u+BfhWb OSemwb5O1SYug== Date: Wed, 23 Sep 2026 12:48:53 +0100 From: "Lorenzo Stoakes (ARM)" To: "David Hildenbrand (Arm)" Cc: Andrew Morton , Zi Yan , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Kiryl Shutsemau , Guo Ren , Brian Cain , Geert Uytterhoeven , Dinh Nguyen , Simon Schuster , Jonas Bonn , Stefan Kristiansson , Stafford Horne , Rich Felker , John Paul Adrian Glaubitz , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Russell King , Vineet Gupta , Michal Simek , Chris Zankel , Max Filippov , Will Deacon , "Aneesh Kumar K.V" , Nick Piggin , Peter Zijlstra , "David S. Miller" , Andreas Larsson , Richard Henderson , Matt Turner , Magnus Lindholm , Catalin Marinas , Mark Rutland , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Madhavan Srinivasan , Michael Ellerman , "Christophe Leroy (CS GROUP)" , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Richard Weinberger , Anton Ivanov , Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Arnd Bergmann , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jason Gunthorpe , John Hubbard , Peter Xu , Yoshinori Sato , Shakeel Butt , Jonathan Corbet , Randy Dunlap , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-openrisc@vger.kernel.org, linux-sh@vger.kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-snps-arc@lists.infradead.org, linux-arch@vger.kernel.org, sparclinux@vger.kernel.org, linux-alpha@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-um@lists.infradead.org, Hugh Dickins , Qi Zheng , linux-doc@vger.kernel.org Subject: Re: [PATCH v4 11/12] mm: make userland page table freeing RCU-safe Message-ID: References: <20260922-rcu-pagetable-freeing-v4-0-fe1ad1f1e303@kernel.org> <20260922-rcu-pagetable-freeing-v4-11-fe1ad1f1e303@kernel.org> <72d1548a-a4ee-4832-b2ab-4bc82f1933f8@kernel.org> <802d3999-95fe-4a09-89b4-d01b60f8e963@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <802d3999-95fe-4a09-89b4-d01b60f8e963@kernel.org> X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, Sep 23, 2026 at 11:13:36AM +0200, David Hildenbrand (Arm) wrote: > On 9/23/26 11:06, Lorenzo Stoakes (ARM) wrote: > > On Wed, Sep 23, 2026 at 11:04:17AM +0200, David Hildenbrand (Arm) wrote: > >> On 9/22/26 17:35, Lorenzo Stoakes (ARM) wrote: > >> > >> The patch subject confused me at first: that's not what the patch is doing, no? > >> Previous patches did that, and now you're just removing the leftovers? > >> > >> Maybe I'm missing something that this patch does along the lines of teaching the > >> code to be RCU-safe. > > > > It is the final piece that makes that the case, so I think it's OK to allow > > oneself a nice subject line? No? :) > > Just took me longer to figure out if I am missing something important. > > E.g., > > "mm: remove unused RCU-unsafe user page table freeing" > > would have been clearer to me. Anyhow, just stumbled over it, I don't care too much. Compromise on: mm: now userland pgtable freeing is safe, remove unused bits ? > > -- > Cheers, > > David -- Cheers, Lorenzo _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv