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[2003:cb:c703:d300:8765:6ef2:3111:de53]) by smtp.gmail.com with ESMTPSA id g11-20020a5d540b000000b0022cdeba3f83sm8798705wrv.84.2022.11.14.00.07.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 14 Nov 2022 00:07:36 -0800 (PST) Message-ID: Date: Mon, 14 Nov 2022 09:07:34 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: [PATCH RFC 00/19] mm/gup: remove FOLL_FORCE usage from drivers (reliable R/O long-term pinning) To: Christoph Hellwig , Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, linux-kselftest@vger.kernel.org, Andrew Morton , Jason Gunthorpe , John Hubbard , Peter Xu , Greg Kroah-Hartman , Andrea Arcangeli , Hugh Dickins , Nadav Amit , Vlastimil Babka , Matthew Wilcox , Mike Kravetz , Muchun Song , Lucas Stach , David Airlie , Oded Gabbay , Arnd Bergmann References: <20221107161740.144456-1-david@redhat.com> Content-Language: en-US From: David Hildenbrand Organization: Red Hat In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 14.11.22 07:03, Christoph Hellwig wrote: > On Mon, Nov 07, 2022 at 09:27:23AM -0800, Linus Torvalds wrote: >> And I'd really love to just have this long saga ended, and FOLL_FORCE >> finally relegated to purely ptrace accesses. > > At that point we should also rename it to FOLL_PTRACE to make that > very clear, and also break anything in-flight accidentally readding it, > which I'd otherwise expect to happen. Good idea; I'll include a patch in v1. -- Thanks, David / dhildenb