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[109.81.31.43]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-45b81a9e971sm295031615e9.18.2025.09.04.05.21.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Sep 2025 05:21:13 -0700 (PDT) Date: Thu, 4 Sep 2025 14:21:08 +0200 From: Michal Hocko To: "Liam R. Howlett" Cc: zhongjinji , rientjes@google.com, shakeel.butt@linux.dev, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, lorenzo.stoakes@oracle.com, surenb@google.com, liulu.liu@honor.com, feng.han@honor.com Subject: Re: [PATCH v7 2/2] mm/oom_kill: The OOM reaper traverses the VMA maple tree in reverse order Message-ID: References: <20250903092729.10611-1-zhongjinji@honor.com> <20250903092729.10611-3-zhongjinji@honor.com> <7rvwvuifkav5oz4ftfuziq23wek2bn6ygvrfotpaweypuy7obv@hjuf3eknscii> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7rvwvuifkav5oz4ftfuziq23wek2bn6ygvrfotpaweypuy7obv@hjuf3eknscii> On Wed 03-09-25 15:02:34, Liam R. Howlett wrote: > * Michal Hocko [250903 08:58]: > > On Wed 03-09-25 17:27:29, zhongjinji wrote: [...] > mmu_notifier_release(mm) is called early in the exit_mmap() path should > cause the mmu notifiers to be non-blocking (according to the comment in > v6.0 source of exit_mmap [1]. I am not sure I follow you here. How does this relate to the actual direction of the address space freeing? > > > Signed-off-by: zhongjinji > > > > Anyway, the change on its own makes sense to me > > Acked-by: Michal Hocko > > > > Thanks for working on the changelog improvements. > > [1]. https://elixir.bootlin.com/linux/v6.0.19/source/mm/mmap.c#L3089 > > ... > > Thanks, > Liam -- Michal Hocko SUSE Labs