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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id b29-20020aa7951d000000b00561382a5a25sm3714931pfp.26.2022.11.18.14.29.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Nov 2022 14:29:02 -0800 (PST) Date: Fri, 18 Nov 2022 14:29:02 -0800 From: Kees Cook To: Peter Zijlstra Cc: Linus Torvalds , David Hildenbrand , linux-kernel@vger.kernel.org, x86@kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-perf-users@vger.kernel.org, linux-security-module@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 , Shuah Khan , Lucas Stach , David Airlie , Oded Gabbay , Arnd Bergmann , Christoph Hellwig , Alex Williamson , Oleg Nesterov , Richard Henderson , Ivan Kokshaysky , Matt Turner , Catalin Marinas , Will Deacon , Thomas Bogendoerfer , Michael Ellerman , Nicholas Piggin , Christophe Leroy , "David S. Miller" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Richard Weinberger , Anton Ivanov , Johannes Berg , Eric Biederman , Alexander Viro , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Kentaro Takeda , Tetsuo Handa , Paul Moore , James Morris , "Serge E. Hallyn" Subject: Re: [PATCH mm-unstable v1 20/20] mm: rename FOLL_FORCE to FOLL_PTRACE Message-ID: <202211181427.4D1C3132FE@keescook> References: <20221116102659.70287-1-david@redhat.com> <20221116102659.70287-21-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 18, 2022 at 12:09:02PM +0100, Peter Zijlstra wrote: > On Wed, Nov 16, 2022 at 10:16:34AM -0800, Linus Torvalds wrote: > > Following the history of it is a big of a mess, because there's a > > number of renamings and re-organizations, but it seems to go back to > > 2007 and commit b6a2fea39318 ("mm: variable length argument support"). > > I went back and read parts of the discussions with Ollie, and the > .force=1 thing just magically appeared one day when we were sending > work-in-progress patches back and forth without mention of where it came > from :-/ > > And I certainly can't remember now.. > > Looking at it now, I have the same reaction as both you and Kees had, it > seems entirely superflous. So I'm all for trying to remove it. Thanks for digging through the history! I've pushed the change to -next: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=for-next/execve&id=cd57e443831d8eeb083c7165bce195d886e216d4 -- Kees Cook