From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2051.outbound.protection.outlook.com [40.107.92.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A2E7722F77F for ; Mon, 2 Jun 2025 15:18:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.92.51 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748877498; cv=fail; b=jm6WCAl2Sxt+0TChgBGvVyMVhYOh/i9Mu32OoacFH4xMFF7y0w4VpEPjZkttupYG9dNXAVu0IBnw9RrEC9oHwvnD2GN8mkgw3tJ5QL3w5/bU+HWtMmOJzNLFO70IWQCYlMluvX4o9X7ZhaA6rnSkmKSuwWPb45P5wdK5+dbhLmo= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748877498; c=relaxed/simple; bh=W2ZZbCI+SKqZp9V/8eNANE5Z1bvZOUcPrqf7y8YB7XI=; h=From:To:Cc:Subject:Date:Message-ID:Content-Type:MIME-Version; b=LRWDuosaiCD1sRnxV8LDTag6xRh1cWOKkNU/TF/Wqx/rIlic5eUNHcfxvXtzhoGJVa/VVYR6O2HCG1aFLjW8+BPHTMjcS3CeiNvUpZHLG891bhLehSGnoKzys9tynqWAVdk4H1kSQE3wzXmEcbUNrqBxb9M3q4DNOJyAi5zro1w= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=hbD6uCW/; arc=fail smtp.client-ip=40.107.92.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="hbD6uCW/" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=x4+bJedwl5BTipU9NPPDFgVNhFuBCpoKX0oFZ3bmgXQuCJ59ZSfWUy3PBWyOYrVeyGmw2RS/9ouRT59OHrxZ60B0PdeJkaSSSP6awS5clmF2QRRS70pCPOhqV8NDgQevSKzOoAz9FCCHQp5coZHcLsLrhAiFS1r27mF/gLgp6X9iBZ9b72ucrukuhf1NXbl/eVvcptOGgxzN13Z6COywIXm7XjLvckKxqrvwNhekSqziQKYTI7kuDVVCgswnKEV1J+vuGQ0B5DHkEq2uS3BuT1KS3hqWPktuPXxYCkdy9exJrro4a3Fes8noWKzYpXFdfMz1eMVzb/gj9VamdBqL7w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=wT1nVxa5ik5CoxqW70iJB9PD0OzAWqHOz8fxVjk9v8c=; b=AjZ3kaDi5XKcM8j1JCZhqpAOS/7ZQxz/nqXxEtsF1g7J8ZCIhPe7f2cnV8luOaCGy2uEc89xHtWVqYU9fzMVsoXIPEt/JQuq3h0Vs9PlbaKpp0eHO0Ra7K9fmDHD2Piuz8nDc56jD3g9Q76GuBAdkIGAy/uP4hG++z85iWLM5B39d6uSroHNtCGsPxaZsWQL8mbS6C3uo79E/S145On5XLFUGbk7j+9hZFNUkBHTBm1X6YOsZ5UTsLfkDwEQaAzbSu6y1R0hQ6deTtc09HjnutAZ/pmj60lu/3hayEEdHWlAGxGuuqrC5ILBUZ2AvM8GXc6CLttSBmx0lvTYKK2kaQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=wT1nVxa5ik5CoxqW70iJB9PD0OzAWqHOz8fxVjk9v8c=; b=hbD6uCW/npAObojdoZnAK43fsreq/fNS+lYwUL/JucO2uoZ2h7obXSc2ulzEuECMjAGY5URCeC2J6jASRbi1/VYLiSkmgKgSyrGJ5uumGHJUl6T6pcrvnQM0qZTv174nAwjsXcouIIzSJ+l48y3WGcPBNvpEDERLOAHfJ1iBXgLvDcn+VM+0AUV6VEI2qKAWHVEwD8FU7jLQ8WhrysVWXQjBOu4wxR5F5unxGIi6BJfILuNDfPIB3/UF1B8jGbDKrbIJtNWfmPhMnVpAh9Nqot4UCp5WVdquXqR3BLxoS9zoueNcKd2UVTn0vMOtIZjqcUfJNrvxDknEZ5M6ou2X7A== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from DS7PR12MB9473.namprd12.prod.outlook.com (2603:10b6:8:252::5) by LV8PR12MB9450.namprd12.prod.outlook.com (2603:10b6:408:202::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8769.37; Mon, 2 Jun 2025 15:18:10 +0000 Received: from DS7PR12MB9473.namprd12.prod.outlook.com ([fe80::5189:ecec:d84a:133a]) by DS7PR12MB9473.namprd12.prod.outlook.com ([fe80::5189:ecec:d84a:133a%5]) with mapi id 15.20.8792.034; Mon, 2 Jun 2025 15:18:10 +0000 From: Zi Yan To: David Hildenbrand , Johannes Weiner , Vlastimil Babka , linux-mm@kvack.org Cc: Andrew Morton , Oscar Salvador , Baolin Wang , "Kirill A . Shutemov" , Mel Gorman , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Richard Chang , linux-kernel@vger.kernel.org, Zi Yan Subject: [PATCH v7 0/6] Make MIGRATE_ISOLATE a standalone bit Date: Mon, 2 Jun 2025 11:18:01 -0400 Message-ID: <20250602151807.987731-1-ziy@nvidia.com> X-Mailer: git-send-email 2.47.2 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: BN9PR03CA0217.namprd03.prod.outlook.com (2603:10b6:408:f8::12) To DS7PR12MB9473.namprd12.prod.outlook.com (2603:10b6:8:252::5) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS7PR12MB9473:EE_|LV8PR12MB9450:EE_ X-MS-Office365-Filtering-Correlation-Id: e01bae45-f500-41a9-04a0-08dda1e8af7a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|7416014|376014|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?6O8LH/L6aoTFtYEbSN5DUK5CV4uOmasYBlG8o5AKySmmYc9aLK4epmKbv6Qw?= =?us-ascii?Q?HHIkc2m2L9BTxd/X9Wpq2VXJ2zDvE+UDTdBW67IZbxWSNnyoZJkxfHmL/r7x?= =?us-ascii?Q?9NEf251lptoULo8x8tzyQEpWUhBBlGh7pLMWFXQK8FYM4kY9p5Ag3bOe6shi?= =?us-ascii?Q?uFKuMAnA+0x7B6qqzQZAnyk7qChSro/8tp4oWCwqrslhOCjLqkJHpq747o3W?= =?us-ascii?Q?50Ou3EBBZcm7kLkTJv8VIgR5skMcMi038Z86yHrb1hm9lXNSXBys46/mjQ4B?= =?us-ascii?Q?1mvUq1DZN9LI+GcmVzlDFV8zpfB/zk2hX4t5HcFNe/2PhvJUiyk3ZV+mv4z9?= =?us-ascii?Q?LnRYnA2ZRsqrBcSnQNfppNGQ7dpXXiwYXOJlHJkhDN2rcWyEwJCiUA47NN/E?= =?us-ascii?Q?56BHPbqOn+t7D5vgzJOINtgpGM4Pn6awVYgZR/JlbToZLnmX4UAjpDVxOtZO?= =?us-ascii?Q?gH/8qHcXC8olS4D3iGJameP7jnsrcNWNIs8uSbD4YCAMuKackfrpSzEh5++u?= =?us-ascii?Q?uhvTy8zWVAF4CM3WugA6/cbjREHirTp25l6jVNdxv+bYe5ncU/SgUyFMRZDO?= =?us-ascii?Q?KXF8vb+9Fv4sPYU8z/Y2Tuzlc5OZuM+7GbmnT6+e9jMMqTYAzb9Nv5aprVf/?= =?us-ascii?Q?uYkndNwnr+6iu72GA7sGD9/G+TWNtX2TcKf4W5hO9YYF51bAJu6inbhK/TLF?= =?us-ascii?Q?S0jBS4O8GwoYAsgIDZhg/+cCVg8ks2cBZ0fpsQQhsiDvp9kKAHi2wBl8GlPq?= =?us-ascii?Q?8+sFfr+1Rg92ECGgq7QQiwtSuNhmnS2r16XsF/3RejdiwP46z+W4fIejsC76?= =?us-ascii?Q?uo2V0MF8Tk3FUhHWTLMc7AG3dxJDoG1qsdHwQ2zv/eQMncWPnE47RkvbJ3BO?= =?us-ascii?Q?k/zUEhUDX3EvWDXzATiREW8goBtKcJuwc2PJ/B1iLPuBQdP39XDZ/2xxSlSR?= =?us-ascii?Q?VsD5lm/XKoNtB/7wZosBl4FUDyuwkFlSq/QwYmds4rVLmCDo8jVSxjNp6Urs?= =?us-ascii?Q?vYRSwib8hb6VUtdmmPX6tNznz4dAcMEi+yUvwAzSp2dplo0jLwBsyJy/Anl2?= =?us-ascii?Q?PriAvDbKKccYYQG0CZWraK6vju1Z188K8dNrpXo8ylHiuqoQ4ly26hTyaXU6?= =?us-ascii?Q?TrIop2+9M3/ntkVEW1ZbSn67sOrnFuln4Y5zJYRsKzziYdekTBYs5ArAOrSX?= =?us-ascii?Q?sE/S+ZmoaUE1cL6job84gmIx15rxuj12kI5yCKGoiA0OfS9vTGfmdJrCM2SN?= =?us-ascii?Q?riuF8J5hu5uQyAw1g/65JZhvnrG3Yjl0JPhNRZuN8TTE3j5WqO9GBZgDGHcs?= =?us-ascii?Q?ZaL6a7SUXZ/jHsdAL7ygtxqSCE2u9mOvY3W6I+Y7MCSSOwHE94m3uiX4gVbX?= =?us-ascii?Q?jjHfqXaQy73JlAHmraXkbHKcWbumL+6GZfyBNkknfuYyrgcAlHDBo9DoCuEn?= =?us-ascii?Q?mTnj8WUBevS5HJXubHkPEyKcVfppfigk?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DS7PR12MB9473.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(7416014)(376014)(1800799024);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?+cN0VRdMGjxyKaHq+3iz0knCFRHLmK52xx2h7fSjPuoDL7rSS0FkUc7xnmCJ?= =?us-ascii?Q?EOS9pcs9ackVmweFL9WE9xf7A/g8m//jLrWgT8I7NboWcyYduBvyzMOLidla?= =?us-ascii?Q?XSH+hIRKTFWjq1agKOHcOObmRyynef/9rObi6LDlac19ioAE0Lc8UzrnjIqo?= =?us-ascii?Q?0FJ0KSr94evSum6KNkVL6RwbV1VgdymMU9NvWK+fcYmtEK3vQd0g5ozH8ajc?= =?us-ascii?Q?fB+aCPtUdAIhdujtXdI15JB5phkxzHvdmn7Nk+HQg90QiD3k1f3a9mjxIZ0z?= =?us-ascii?Q?QEhJvQhsDlR9kufw3x9v+b2Wrl9XnuQgH45yYd3MTws9EZtltxauI0vuVjCl?= =?us-ascii?Q?XSxThVs271bUExWQGcr7cwqbd9xGJ4+EbzR71NIjoLvKAGeiwEPKn25pCQhk?= =?us-ascii?Q?dkYvY5qPPMy3k74B51XL7eRjhBKf7Tz4i3N7jLTMIlWw1JlxTIme63mTIzSi?= =?us-ascii?Q?0PFhANJTXgpj+VhC8Owt5sxX0f0cVhp/H1dZpvvWghXuZYYKuTO/o9kmYaTf?= =?us-ascii?Q?/jkshzUGDku5vYxsl6+ad/smzE4pBDejLMmDgFicUgK10Sveoq27zgBM4Pz7?= =?us-ascii?Q?tSP7678C91scIRnWJVcMo0B+bVOaLFE23XROQjvbo17oSgMA692z08bjEgv2?= =?us-ascii?Q?zJgmQnQ3Ncl+HAQlyq9Ap+8FjroTcO/CI+UZFHpX0uQhCqhJ+7UqE0jwb0ID?= =?us-ascii?Q?MWLvDmTa40iCVdNQ8lX3Q1PY4slWnMkda9D75sjgvmrkWi8K+917Er1vpT6a?= =?us-ascii?Q?kz835/5QDPcnZKAOXY0xY+EQWjbSH0QzsTpnmLsH1js6mrQyLP52OrSq97xU?= =?us-ascii?Q?z7E7zIWQEUP4j8r4kYbOsRMQGNSKfSoLFDlDnT7AEnezn/SvgAaXCOSbNWae?= =?us-ascii?Q?uxQFXRTVSKCNNSigVih2/xYFI2aexxoZ2GxuOmhjCI41m8p5188LixzrPETi?= =?us-ascii?Q?VPYG34dkiKdSHyJOge7lv72btIrJrL8jsnF0u2Nq0zMo3zTVmgu7Hjv5PQxq?= =?us-ascii?Q?AfmxN4YKnH0YSz/zNjGazVPIile/ZqOAivo4/PS82F7usn2U+VaA6Q5stDKn?= =?us-ascii?Q?r9LYFeKpUjozfEmaLz6nAHRC5rKS/lGjpU0Up7opUtfOG+1Ohn/rShnLErJe?= =?us-ascii?Q?xFWfFiJZS7I9qibc3pJykg1ohZl61ABuLdlSJakJe2Di3fmteD64pE4ukLdR?= =?us-ascii?Q?3Egx1HUxAoGm70SrLBRuQWQ8RlWrCpJZ1GDkMQf9ludAORKPKhYIiNCtvJUj?= =?us-ascii?Q?dvOTG5xJNqm2HEdVotyjmc5yiISMNAcMT3PgJqaBDNmXGam8p/b8IPSblmns?= =?us-ascii?Q?9+tFsr9daA6frPOb0gCMz1rbLGKkixATOqblq4Svj9ti5nnv+3bmSTzb6xjj?= =?us-ascii?Q?ji4dKTdyQFyvZEjYvbfhihr4eu1BYVWOCyFLx9KIOO43n4QLRE/5Cixp7Kkx?= =?us-ascii?Q?OWqaHKiPyzBeCmcNKKQ6ibEcaVVP4JpFAWRQp6d6zlB/cNScBAW+Dwz6uXq7?= =?us-ascii?Q?wDipO1HIEhOIzNiX1qWsjRwb1RpUJEI9oi8zvUslvmNCzqiVQWSmSo7PJyA1?= =?us-ascii?Q?ISmf1il1MtqDkmfD/hbcKS1wmt1SeZXRoxm5Pqcv?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: e01bae45-f500-41a9-04a0-08dda1e8af7a X-MS-Exchange-CrossTenant-AuthSource: DS7PR12MB9473.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jun 2025 15:18:10.6427 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: hHl/RawxPfb9eiM/ssBU8iUcCcbLRon6Uywn3KlxFQhoW6hi5fJanH+3PfryymZG X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR12MB9450 Hi all, This patchset moves MIGRATE_ISOLATE to a standalone bit to avoid being overwritten during pageblock isolation process. Currently, MIGRATE_ISOLATE is part of enum migratetype (in include/linux/mmzone.h), thus, setting a pageblock to MIGRATE_ISOLATE overwrites its original migratetype. This causes pageblock migratetype loss during alloc_contig_range() and memory offline, especially when the process fails due to a failed pageblock isolation and the code tries to undo the finished pageblock isolations. It is on top of mm-everything-2025-05-31-03-02. In terms of performance for changing pageblock types, no performance change is observed: 1. I used perf to collect stats of offlining and onlining all memory of a 40GB VM 10 times and see that get_pfnblock_flags_mask() and set_pfnblock_flags_mask() take about 0.12% and 0.02% of the whole process respectively with and without this patchset across 3 runs. 2. I used perf to collect stats of dd from /dev/random to a 40GB tmpfs file and find get_pfnblock_flags_mask() takes about 0.05% of the process with and without this patchset across 3 runs. Changelog === >From V6[5]: 1. Used MIGRATETYPE_AND_ISO_MASK in init_pageblock_migratetype() too. 2. fixed an indentation issue in Patch 3. 3. removed acr_flags_t and used enum pb_isolate_mode instead in alloc_contig_range(). 4. collected review tags. >From V5[4]: 1. used atomic version bitops for pageblock standalone bit operations. 2. added a helper function for standalone bit check. 3. renamed PB_migrate_skip to PB_compact_skip. 4. used #define MIGRATETYPE_AND_ISO_MASK MIGRATETYPE_MASK to simplify !CONFIG_MEMORY_ISOLATION code. 5. added __MIGRATE_TYPE_END to make sure migratetypes can be stored in PB_migratetype_bits. 6. used set and clear to implement toggle_pageblock_isolate() and added VM_WARN_ONCE in __move_freepages_block_isolate() to warn isolating a isolated pageblock and unisolating a not isolated pageblock. 7. dropped toggle_pfnblock_bit(). 8. made acr_flags_t an enum and added ACR_OTHER for non CMA allocation. 9. renamed pb_isolate_mode items to have PB_ISOLATE_MODE prefix. 10. collected reviewed-by. >From v4[3]: 1. cleaned up existing pageblock flag functions: a. added {get,set}_{pfnblock,pageblock}_migratetype() to change pageblock migratetype b. added {get,set,clear}_pfnblock_bit() to change pageblock standalone bit, i.e., PB_migrate_skip and PB_migrate_isolate (added in this series). c. removed {get,set}_pfnblock_flags_mask(). 2. added __NR_PAGEBLOCK_BITS to present the number of pageblock flag bits and used roundup_pow_of_two(__NR_PAGEBLOCK_BITS) as NR_PAGEBLOCK_BITS. 3. moved {get,set,clear}_pageblock_isolate() to linux/page-isolation.h. 4. added init_pageblock_migratetype() to initialize a pageblock with a migratetype and isolated. It is used by memmap_init_range(), which is called by move_pfn_range_to_zone() in online_pages() from mm/memory_hotplug.c. Other set_pageblock_migratetype() users are changed too except the ones in mm/page_alloc.c. 5. toggle_pageblock_isolate() is reimplemented using __change_bit(). 6. set_pageblock_migratetype() gives a warning if a pageblock is changed from MIGRATE_ISOLATE to other migratetype. 7. added pb_isolate_mode: MEMORY_OFFLINE, CMA_ALLOCATION, ISOLATE_MODE_OTHERS to replace isolate flags. 8. REPORT_FAILURE is removed, since it is only used by MEMORY_OFFLINE. >From v3[2]: 1. kept the original is_migrate_isolate_page() 2. moved {get,set,clear}_pageblock_isolate() to mm/page_isolation.c 3. used a single version for get_pageblock_migratetype() and get_pfnblock_migratetype(). 4. replace get_pageblock_isolate() with get_pageblock_migratetype() == MIGRATE_ISOLATE, a get_pageblock_isolate() becomes private in mm/page_isolation.c 5. made set_pageblock_migratetype() not accept MIGRATE_ISOLATE, so that people need to use the dedicate {get,set,clear}_pageblock_isolate() APIs. 6. changed online_page() from mm/memory_hotplug.c to first set pageblock migratetype to MIGRATE_MOVABLE, then isolate pageblocks. 7. added __maybe_unused to get_pageblock_isolate(), since it is only used in VM_BUG_ON(), which could be not present when MM debug is off. It is reported by kernel test robot. 7. fixed test_pages_isolated() type issues reported by kernel test robot. >From v2[1]: 1. Moved MIGRATETYPE_NO_ISO_MASK to Patch 2, where it is used. 2. Removed spurious changes in Patch 1. 3. Refactored code so that migratetype mask is passed properly for all callers to {get,set}_pfnblock_flags_mask(). 4. Added toggle_pageblock_isolate() for setting and clearing MIGRATE_ISOLATE. 5. Changed get_pageblock_migratetype() when CONFIG_MEMORY_ISOLATION to handle MIGRATE_ISOLATE case. It acts like a parsing layer for get_pfnblock_flags_mask(). Design === Pageblock flags are read in words to achieve good performance and existing pageblock flags take 4 bits per pageblock. To avoid a substantial change to the pageblock flag code, 8 pageblock flag bits are used. It might look like the pageblock flags have doubled the overhead, but in reality, the overhead is only 1 byte per 2MB/4MB (based on pageblock config), or 0.0000476 %. Any comment and/or suggestion is welcome. Thanks. [1] https://lore.kernel.org/linux-mm/20250214154215.717537-1-ziy@nvidia.com/ [2] https://lore.kernel.org/linux-mm/20250507211059.2211628-2-ziy@nvidia.com/ [3] https://lore.kernel.org/linux-mm/20250509200111.3372279-1-ziy@nvidia.com/ [4] https://lore.kernel.org/linux-mm/20250523191258.339826-1-ziy@nvidia.com/ [5] https://lore.kernel.org/linux-mm/20250530162227.715551-1-ziy@nvidia.com/ Zi Yan (6): mm/page_alloc: pageblock flags functions clean up. mm/page_isolation: make page isolation a standalone bit. mm/page_alloc: add support for initializing pageblock as isolated. mm/page_isolation: remove migratetype from move_freepages_block_isolate() mm/page_isolation: remove migratetype from undo_isolate_page_range() mm/page_isolation: remove migratetype parameter from more functions. Documentation/mm/physical_memory.rst | 2 +- drivers/virtio/virtio_mem.c | 4 +- include/linux/gfp.h | 18 +- include/linux/memory_hotplug.h | 3 +- include/linux/mmzone.h | 21 +- include/linux/page-isolation.h | 34 ++- include/linux/pageblock-flags.h | 48 ++-- include/trace/events/kmem.h | 14 +- mm/cma.c | 3 +- mm/hugetlb.c | 4 +- mm/internal.h | 3 +- mm/memory_hotplug.c | 24 +- mm/memremap.c | 2 +- mm/mm_init.c | 24 +- mm/page_alloc.c | 319 +++++++++++++++++++++------ mm/page_isolation.c | 100 ++++----- 16 files changed, 430 insertions(+), 193 deletions(-) -- 2.47.2