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Shutemov" , David Hildenbrand , Suren Baghdasaryan , Qi Zheng , Russell King , Catalin Marinas , Will Deacon , Geert Uytterhoeven , Greg Ungerer , Michal Simek , Thomas Bogendoerfer , Helge Deller , John David Anglin , "Aneesh Kumar K.V" , Michael Ellerman , Alexandre Ghiti , Palmer Dabbelt , Heiko Carstens , Christian Borntraeger , Claudio Imbrenda , John Paul Adrian Glaubitz , "David S. Miller" , Chris Zankel , Max Filippov , x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Michel Lespinasse Subject: Re: [PATCH 00/23] arch: allow pte_offset_map[_lock]() to fail Message-ID: <20230516104152.GH2587705@hirez.programming.kicks-ass.net> References: <77a5d8c-406b-7068-4f17-23b7ac53bc83@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: AEA2AC0011 X-Stat-Signature: pek6i1z3mosuem89dsoknpjnynmq6r87 X-HE-Tag: 1684233789-515723 X-HE-Meta: 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 8XtJhMq1 N8Rqqa0S9b+n7GFM8msqefBjji8Do/VysGN/8zirXdayxyZ+DJVZjsT0QXJrioQZXHNTJNztRQII22u3/nO7+fmTLTzRtCIN4tBYvrXaT05yB+V7jor3ZRoBH4ufES+Q1H84Vmsq+EkP/gUl7UY0YjX+LZBB4PGyYc3RUI7YquJ+YZC+QjNqKS5v2DpQp/UxdLA5Z9YB+ejNoDxwNiaCQ7nqSlw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, May 11, 2023 at 03:02:55PM +0100, Matthew Wilcox wrote: > We also talked about moving x86 to always RCU-free page tables in > order to make accessing /proc/$pid/smaps lockless. I believe Michel > is going to take a swing at this project. Shouldn't be too controversial I think -- effectively everybody already has it enabled because everybody builds with KVM enabled.