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Wed, 8 Jul 2026 12:38:01 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com X-SMAIL-MID: 1043304457391 X-SMAIL-UIID: 0C5A6D398708443A93150E628A0CDE48-20260708-123801-1 From: Hillf Danton To: "David Hildenbrand (Arm)" Cc: tao , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC PATCH v2 00/13] mm: rework anon_vma and remove anon_vma_chain Date: Wed, 8 Jul 2026 12:37:49 +0800 Message-ID: <20260708043751.421-1-hdanton@sina.com> In-Reply-To: <08c001ab-320f-4676-830b-8e4ba6a05dee@kernel.org> References: <20260707063308.29176-1-tao.wangtao@honor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 39DFDC0009 X-Stat-Signature: e3z1nywke4myccrrydxtnd7yr1qnyzb7 X-HE-Tag: 1783485485-480630 X-HE-Meta: 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 6vQw5jPL b3flJlN6HmqxADnzjiiaGyVfB0K7Ze62t5VAGJn8wswVyd+mghN3MOnplolxInan2MhyAqt4g6SIqB+0QatHdo/5XCaOblIclyYANVkdFxwiwJPrbkiimBxqMazLO+4MpGzS0fkd3V1WivJl/jFn0eXLgHYgQAxlFO/t4fY78dE2he5EKRMMYf4Vq3HC9RPsQhpE7FPgX3Rj+YhDgHVN9qWOfzZPAlKuVd/F6D/JUyOPEC/Wh7PCl++/JXUwRQU0eRb9SPsbFO2butbHFqo6rSK77KN0NK/QC/a/ID+nK8m5M6JWfwRFlEons5UGj0g88hTcSpN6RA8KXq5oFvJbcJa5Gkuo8mU3KKfudTKtUXmu4jEnKZPxxGLBYZSq8JlEzA/G67RgyJ/XAinl7ZM3/C0ZpoUT4KowoKsd5XqkrMX7T2QWbV0kVMvKK4Zg2NCyz/mfiEss9IIAwjDI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 7 Jul 2026 09:01:04 +0200 "David Hildenbrand (Arm)" wrote: > On 7/7/26 08:32, tao wrote: > > Hi all, > > > > Since v1 was relatively complex and difficult to extend, this version > > adopts a simpler anon_vma implementation approach. > > I really hate to repeat myself, but you seemed to have missed my main point [1] > > "Lorenzo has been hard at work exploring various design options (and I'm afraid > he might be one of the 3 people on this planet that understand anon_vma in full > detail), so I suggest we wait for a redesign proposal from him and see if that > is doable?" > Given that no numabalance could land upstream without horse racing [2], what prevents Lorenzo from becoming another (scarlet? raven black?) lipstick given mglru? > [1] https://lore.kernel.org/all/70377626-500d-46f2-a3f5-a0d2914ce365@kernel.org/ > [2] Subject: Re: [PATCH 00/35] AutoNUMA alpha14 https://lore.kernel.org/lkml/CA+55aFxpD+LsE+aNvDJtz9sGsGMvdusisgOY3Csbzyx1mEqW-w@mail.gmail.com/ > -- > Cheers, > > David