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Howlett" , "Matthew Wilcox" , "Ryan Roberts" , "William Kucharski" , "Andrew Morton" To: "Sasha Levin" , "Johannes Weiner" From: "Zi Yan" Subject: Re: [PATCH 6.6.y] mm/huge_memory: use folio's memcg inside __folio_split() X-Mailer: aerc 0.22.0 References: <20260904022657.2656810-1-ziy@nvidia.com> <2026-09-05-daily-reply-0043-folio-split-memcg-6-6-bounce-v2@kernel.org> In-Reply-To: X-ClientProxiedBy: BL1PR13CA0438.namprd13.prod.outlook.com (2603:10b6:208:2c3::23) To IA0PR12MB8374.namprd12.prod.outlook.com (2603:10b6:208:40e::7) Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: IA0PR12MB8374:EE_|CY8PR12MB7610:EE_ X-MS-Office365-Filtering-Correlation-Id: 73188733-c405-4728-85a5-08df10fc158e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|23010399003|376014|7416014|10067099003|4143699003|22082099003|18002099003|56012099006|11063799006; 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I tried your 6.6.= y > patch against it and it fails at mm/huge_memory.c:2646. The two trees hav= e > different shapes here: 6.6.y has split_huge_page_to_list(page, list) usin= g > XA_STATE, while 6.12.y has split_huge_page_to_list_to_order(page, list, > new_order) using XA_STATE_ORDER. > > Zi Yan, could you send a 6.12.y backport? Once that one is in I'll take > both together. Done. See https://lore.kernel.org/all/20260912182926.1326147-1-ziy@nvidia.c= om/ BTW, I see you also sent one[1], but it seems that it is using a non-existing get_mem_cgroup_from_folio(). What is that for? Thanks. [1] https://lore.kernel.org/all/20260903223027.1739434-1-sashal@kernel.org/ --=20 Best Regards, Yan, Zi