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Aug 2023 08:19:26 +0000 Date: Mon, 14 Aug 2023 15:52:26 +0800 From: Yan Zhao To: Nadav Amit CC: linux-mm , Linux Kernel Mailing List , , Paolo Bonzini , Sean Christopherson , Mike Kravetz , , Jason Gunthorpe , Mike Rapoport , Andrew Morton , , Subject: Re: [RFC PATCH v2 4/5] mm/autonuma: call .numa_protect() when page is protected for NUMA migrate Message-ID: Reply-To: Yan Zhao References: <20230810085636.25914-1-yan.y.zhao@intel.com> <20230810090048.26184-1-yan.y.zhao@intel.com> <8735E3A2-795B-4D52-9634-D48C68645A5D@gmail.com> Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8735E3A2-795B-4D52-9634-D48C68645A5D@gmail.com> X-ClientProxiedBy: KL1PR01CA0091.apcprd01.prod.exchangelabs.com (2603:1096:820:2::31) To DS7PR11MB5966.namprd11.prod.outlook.com (2603:10b6:8:71::6) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS7PR11MB5966:EE_|PH7PR11MB6651:EE_ X-MS-Office365-Filtering-Correlation-Id: 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 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 Fri, Aug 11, 2023 at 11:52:53AM -0700, Nadav Amit wrote: > > > On Aug 10, 2023, at 2:00 AM, Yan Zhao wrote: > > > > Call mmu notifier's callback .numa_protect() in change_pmd_range() when > > a page is ensured to be protected by PROT_NONE for NUMA migration purpose. > > Consider squashing with the previous patch. It’s better to see the user > (caller) with the new functionality. > > It would be useful to describe what the expected course of action that > numa_protect callback should take. Thanks! I'll do in this way when I prepare patches in future :)