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b=f1XM8VeW9YiBPOV7xsp6RjWrfLgcqlz5ytLuWbxe9s6CrVt44fS1UvYE7GV5NQIt7 sopJ13tqkwmI/XyC8MpBwZouwgOSbMk8iVik2o+ZU7c281S9CTFBvgIkDrM+4ZdqWV 2WGnIWao69+I0v6Z76n/kKt4YUfz3qmFsQ1PRzpCGaRmr2erSDCJPApnP6CidYDXMV wVx8GxOh0qoC3i30sBheccc56PRGVa9YP6PEko8JAoo8n1cgMhz10crJR6NENzssqD PaHgWdUSzzxcQBj5BKgrhnIAnOARH7gvvtYwlzW1B4w/L7VUJnDDWEUOOyXyzuOREw sgzKoew4rxb7w== Date: Thu, 4 Jun 2026 10:40:52 +0100 From: Lorenzo Stoakes To: "David Hildenbrand (Arm)" Cc: tao , catalin.marinas@arm.com, will@kernel.org, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, akpm@linux-foundation.org, willy@infradead.org, sj@kernel.org, kees@kernel.org, luizcap@redhat.com, zhangjiao2@cmss.chinamobile.com, kas@kernel.org, hpa@zytor.com, liam@infradead.org, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, jack@suse.cz, riel@surriel.com, harry@kernel.org, jannh@google.com, jgg@ziepe.ca, jhubbard@nvidia.com, peterx@redhat.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev, xu.xin16@zte.com.cn, chengming.zhou@linux.dev, nao.horiguchi@gmail.com, matthew.brost@intel.com, joshua.hahnjy@gmail.com, rakie.kim@sk.com, byungchul@sk.com, gourry@gourry.net, ying.huang@linux.alibaba.com, apopple@nvidia.com, pfalcato@suse.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, damon@lists.linux.dev, shakeel.butt@linux.dev, ryncsn@gmail.com, 21cnbao@gmail.com, jparsana@google.com, dvander@google.com, zhangji1@honor.com, wangzicheng@honor.com Subject: Re: [PATCH 0/15] mm: introduce ANON_VMA_LAZY for deferred anon_vma creation Message-ID: References: <20260527110147.17815-1-tao.wangtao@honor.com> <70377626-500d-46f2-a3f5-a0d2914ce365@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <70377626-500d-46f2-a3f5-a0d2914ce365@kernel.org> X-Rspamd-Server: rspam07 X-Rspam-User: X-Stat-Signature: s6smgzcbgiwawk4aowsb8gwxyykdy14g X-Rspamd-Queue-Id: 947F61C000C X-HE-Tag: 1780566068-276523 X-HE-Meta: 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 ZMM3Div1 tZ97nmPVVdyGxoFr+IjlRiCPZ8+rYOHdQnFk/0RH1hVeiXclVvdwuswmwR/EggmYp1c1iP0bk/bcz9HdjbdKbYMPj7m9/ovnt9eNsO062Z5rEhqeDUszbtuVNjB/gt36iqn3jq4wwB+9NgA0NJ2sz7wysw03/rjNUqw+2UOnCwdPcrYVkfzmuhvGnMeyO25kN9CiWPY5uoQ+cO9G00WSsCjazvmqM86aOCmw7A5HFxDwHzspPMLjC3soORKjAhbe+oOQZpEFkbY0bMAjm1OOIfKfv31CcFQI+xkYK0eaodnH9D4bv4QnFPzDtTwGQzCCbS7baTwyHOacxs/3v2JnHjuEQ1Sbz3ZrC7CVo+4rbQdcmb8uxIsqxQPEISA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Jun 03, 2026 at 10:25:05PM +0200, David Hildenbrand (Arm) wrote: > I was excited when Lorenzo started working on a completely new approach that > would focus on improving the common cases while trying to reduce the overall > complexity. Because I think most of us really dislike anon_vma. It's still work > in progress, and I am sure there are some rough edges. > > But fundamentally, I think we want to find a new design that is just naturally > simpler. > > 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? I'll spend the next month focusing on shipping something as a priority, even if partial. Thanks, Lorenzo