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Howlett" Cc: "Lorenzo Stoakes (ARM)" , Jason Gunthorpe , Andrew Morton , David Hildenbrand , Zi Yan , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Usama Arif , Guo Ren , Brian Cain , Geert Uytterhoeven , Dinh Nguyen , Simon Schuster , Jonas Bonn , Stefan Kristiansson , Stafford Horne , Yoshinori Sato , 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 , John Hubbard , Peter Xu , 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 Subject: Re: [PATCH 01/12] mm/huge_memory: zap deposited page tables after an RCU grace period Message-ID: References: <20260901-rcu-pagetable-freeing-v1-0-5456a81c8212@kernel.org> <20260901-rcu-pagetable-freeing-v1-1-5456a81c8212@kernel.org> <20260901142408.GA56830@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 2A69B140007 X-Stat-Signature: rtkf4aroht9ndpuyn3qje7yxsdkx7o5z X-Rspam-User: X-HE-Tag: 1788282841-852184 X-HE-Meta: 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 LDeC+j+s lEQUyoXn0fNiiilKhtUaeoGfQW8E7nKxCuBhonlA+Q7uGfg4czeIhF4MEX4CcIfXCyOqQ5ve6kzT+x1+IPFTp3yOOhM4Jl0/FF1rjGc5TVVNY1dRaMz/lcwgG9EtiehVv/CRyBsV/1QUAm4qs9m+w8n8gkXdME21tIzt7SV7Qa+Z4pFiZf+qfMxNGQwzLfawlHw3FCRxiIIbBkvFQ1yfaBzNLXYo+KgVgZkILn1cxqrKqCzWG6wVI7bZFBEHMTs6pztXgFQZXsKaSK8JsZ6b2g0XBZ+m7q5ptmm9BiW6pNrsvhdDPfzfL/0+m3FuOZIH/z0vNTltzRwzwJ/+kJQbPWranRZvDM6ZEtuLmzSz4cHWxjcEgvPebX+f5NxvAAlSF8Yx8GiKnmdUHb6txQXZKM1f+tA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Sep 01, 2026 at 11:54:47AM -0400, Liam R. Howlett wrote: > Do you have munmap() performance dependent workload that you are > concerned about regressing? exit(2) path is performance critical for many workloads. Like, if you need to restart VM. -- Kiryl Shutsemau / Kirill A. Shutemov