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client-ip=165.204.84.17; helo=satlexmb08.amd.com; pr=C Received: from satlexmb08.amd.com (165.204.84.17) by SJ1PEPF000023D4.mail.protection.outlook.com (10.167.244.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.292.1 via Frontend Transport; Wed, 29 Jul 2026 11:45:25 +0000 Received: from satlexmb08.amd.com (10.181.42.217) by satlexmb08.amd.com (10.181.42.217) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.41; Wed, 29 Jul 2026 06:45:25 -0500 Received: from [172.31.176.217] (10.180.168.240) by satlexmb08.amd.com (10.181.42.217) with Microsoft SMTP Server id 15.2.2562.41 via Frontend Transport; Wed, 29 Jul 2026 06:45:17 -0500 Message-ID: Date: Wed, 29 Jul 2026 17:15:16 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 0/8] mm: Hot page tracking and promotion infrastructure To: "David Hildenbrand (Arm)" , Gregory Price , Matthew Wilcox CC: Andrew Morton , , , , , , , , , , , , , , , , , , , , , , , , , , References: <20260728054356.291998-1-bharata@amd.com> <20260728111401.b6d674baf8e56a27c55e0c52@linux-foundation.org> Content-Language: en-US From: Bharata B Rao In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF000023D4:EE_|SA0PR12MB4381:EE_ X-MS-Office365-Filtering-Correlation-Id: 4ad80057-96bb-41d1-76f2-08deed66e13e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|7416014|376014|36860700016|23010399003|1800799024|22082099003|18002099003|56012099006|11063799006|4143699003|10067099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb08.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(82310400026)(7416014)(376014)(36860700016)(23010399003)(1800799024)(22082099003)(18002099003)(56012099006)(11063799006)(4143699003)(10067099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: ksa7zp9I3+01IaSFZqBhuYYLAwr/4jkddxKSD94Ib16hUATIzKLuByqasKy7Rj5YQiMb9euP4zPPfOMRuLZwANXbMgmL+hnf6VJNcFn94yqf97/X6x3fb4q+3EWAPYkuEqQ9jK0HLU6zhN4evOnYFMdovHuqZd7OdpnB2Z8eL4cuDvo8hTF2hYgGLaz5HY8GWK9BX5feIwC3RGMWhh4xDXjiItMClbZuGULMJ7jtoKgkaYfv44Sw4zhhhTaRD1N03A8qNrbOuMBPpGcT/m3/h6C2qrv/EMhi9KvdGJW1ZrozqTm7GARhaFXFlRyiMbtxWNMJe/w8RUDYpJoeJrlXIFFxodpaUtIAOwDCo5DYWiOrTwCIDp8KC1VU9D19pNXCc808PLeRL1ScdsVq3+jGaf0VdVHi2SL203v8suIxKXyRPvQEC8VGuMti0tEVsGo5 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jul 2026 11:45:25.3588 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4ad80057-96bb-41d1-76f2-08deed66e13e X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023D4.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA0PR12MB4381 On 29-Jul-26 12:50 AM, David Hildenbrand (Arm) wrote: > > The diffstat is scary, to say the least. And the x86 stuff certainly needs x86 > maintainer acks. The diffstat can be logically grouped into the following 3 sets: 1. IBS Memory Profiler: A bunch of x86 specific files got included in this version when I switched from NMI to using fixed interrupt for IBS Memory Profiler. 2. Many of the files in mm and all in sched are touched due to moving of NUMA Balancing tiering mode (kernel.numa_balancing=2) from scheduler to pghot as hint fault source. 3. Then rest of the changes are due to pghot core. > > So far there is no real review -- we're in v8 without a single tag. > > So this is far away from being mergeable. > > I'm afraid this will need a lot more discussions, and likely RFC would have been > still appropriate at this point. Noted. Regards, Bharata.