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client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by BY1PEPF0001AE16.mail.protection.outlook.com (10.167.242.104) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9846.18 via Frontend Transport; Wed, 22 Apr 2026 04:16:15 +0000 Received: from satlexmb10.amd.com (10.181.42.219) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.17; Tue, 21 Apr 2026 23:16:11 -0500 Received: from satlexmb07.amd.com (10.181.42.216) by satlexmb10.amd.com (10.181.42.219) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.17; Tue, 21 Apr 2026 23:16:11 -0500 Received: from [10.252.223.214] (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server id 15.2.2562.17 via Frontend Transport; Tue, 21 Apr 2026 23:16:04 -0500 Message-ID: <30f47bd5-68a2-4be5-a4be-d4b8801de810@amd.com> Date: Wed, 22 Apr 2026 09:45:59 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v6 2/5] mm: migrate: Add migrate_misplaced_folios_batch() To: Donet Tom , Gregory Price CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , References: <20260323095104.238982-1-bharata@amd.com> <20260323095104.238982-3-bharata@amd.com> <24cd6a95-1304-4732-9273-43c73ea858b2@linux.ibm.com> <45b93560-acdb-4552-bac5-bd085d778085@linux.ibm.com> Content-Language: en-US From: Bharata B Rao In-Reply-To: <45b93560-acdb-4552-bac5-bd085d778085@linux.ibm.com> Content-Type: text/plain; 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All the isolated folios >>>>>> + * in the list must belong to the same memcg so that NUMA_PAGE_MIGRATE >>>>>> + * stat can be attributed correctly to the memcg. >>> ^ This is the expectation from the caller. pghot caller ensures this. >>> I could add a debug check in this routine to verify if that is indeed so. >>> >> Wondering if the interface name should somehow reflect this as well, to >> make it a bit clearer. > > I agree—this would make the interface clearer. Sure, will change. Regards, Bharata.