From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7036FCCD1AB for ; Wed, 22 Oct 2025 03:38:22 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CF9948E000C; Tue, 21 Oct 2025 23:38:21 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CD1738E0002; Tue, 21 Oct 2025 23:38:21 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BBFE38E000C; Tue, 21 Oct 2025 23:38:21 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id AB0958E0002 for ; Tue, 21 Oct 2025 23:38:21 -0400 (EDT) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 568C31A06FF for ; Wed, 22 Oct 2025 03:38:21 +0000 (UTC) X-FDA: 84024342402.14.AF7544F Received: from CH1PR05CU001.outbound.protection.outlook.com (mail-northcentralusazon11010002.outbound.protection.outlook.com [52.101.193.2]) by imf29.hostedemail.com (Postfix) with ESMTP id 8934F120005 for ; Wed, 22 Oct 2025 03:38:18 +0000 (UTC) Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=Nvidia.com header.s=selector2 header.b=XZcOuBWu; spf=pass (imf29.hostedemail.com: domain of ziy@nvidia.com designates 52.101.193.2 as permitted sender) smtp.mailfrom=ziy@nvidia.com; dmarc=pass (policy=reject) header.from=nvidia.com; arc=pass ("microsoft.com:s=arcselector10001:i=1") ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1761104298; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=W9Zphq60Bv87ekU8ZIHSkG1avigDuvLpJBOtU9M6jN0=; b=hljtBsvPAoCeDa3Gd6qnGKrZ5Gjp2ieLQuhq6hqz/EW8Zs34OnYc+ACUGhImD0rx3oKd7/ c+0fAZGAt4Wg1NUen1q7qMTrygolAaFEE937nVudTLqh1t7j5abhSu7uB/ko6wqN+fMqSE 6Y0D+phb1aQhTWqwNkH9t6bjAupWKgM= ARC-Authentication-Results: i=2; imf29.hostedemail.com; dkim=pass header.d=Nvidia.com header.s=selector2 header.b=XZcOuBWu; spf=pass (imf29.hostedemail.com: domain of ziy@nvidia.com designates 52.101.193.2 as permitted sender) smtp.mailfrom=ziy@nvidia.com; dmarc=pass (policy=reject) header.from=nvidia.com; arc=pass ("microsoft.com:s=arcselector10001:i=1") ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1761104298; a=rsa-sha256; cv=pass; b=skwi1wYr0lBvvuR720xlt6EeMmql8HxAPOIoXQlgyFI9ANB7g+DDZM2B0xGouXK3wUAToQ bgZAkL44ReeBwlm4fVY8C0iQakjKNA2nbWedE3OIHMq1Lyqbpcnr8kbUprDkm4UNww2Pua e8vY4qqqHqTmLHdMzI9Oi7C1HoeNay0= ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=o4mIM6iAjGHlV0Czow5SGId6I5WX+4rU7YsnZY9X83a6qB8ZsnjrlpQ5+zKNGka3WKdnf8FL+B62kx+DcXBXnzIUPQ9K1SgcaGr/oCCL9Ui2zUweqr90IP+Wl/66hGxcmzP+J650A638SXZBJe0lJlAuS6s3wk8nrC7Od0ShEo6UwZDbbjWGTGAhCkC409ox7wow89WDT8pBkzDO3GSEvZjyqlHLq9/XBfWUFyf9grgV9Z9WzG2LqVQ6bA3WUsQHpS9MJM8HeEgOV5crb1dVYoC0NNVcnEmqj7TDea20VYB2t3jC9zBEIdOJqN4RM5B9uuhvBDJum1rH6F0mKcW+mA== 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=W9Zphq60Bv87ekU8ZIHSkG1avigDuvLpJBOtU9M6jN0=; b=RZGTPjR/9Pu/YgQye6R4XhSrLWYlgu4F3eudo/Vwhll+HLk9jX4CNyyVGu4Cgya/WlN3AlHxdl+7Z+R3p5DaDAK1XkbMXxPCcELO3WLoF31zj6WkU+Ktc+XXk3JPh6vsQkrZkuPpg+tf01QkJeGbqeyJBtfu5FKI35WXQK4OF2IyCul8Dv8jhGQFZ9uVs6V07/ezUi0qkVj+7GHcPkK5/iFE4+QYoS5DFaOBm+7uVLgqtK1NQZ1hnIGwDLJeWXRfehXTiULhO8YAhdMuWe2D5m+wB3lyO7OnkNSJsQ0hyhXzuYkAtE1W5qQXzE09zTnD8mqiZCoyXTFkhHdN4IPnlw== 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=W9Zphq60Bv87ekU8ZIHSkG1avigDuvLpJBOtU9M6jN0=; b=XZcOuBWuPlO+3GdrbDo8hdZ8055KCKuAeeTgsya+/LCFK3n3tpEkCnZ+AffUEZtlR+4aZGZYWwF1AinxPtfr26n8EzTswiJAFaQQ6/S1yWfxGz267+wCjBJ6JWr+NqUV0y3xA3G8AG17YVS+ddVloFLgFM4zWlRL1UZ2rcGZ3dFCjc4G3f9iwceNM5XEuypn+YMEt+NRxt8hDSk30tSyKSaMG21pgK7NI1HxxBazW8J1boGbNSFArqXSYSjcoviysSLVNftjsUjsCwuVtGInrKKkgYYLxZsz3ztr3ZMM2nquNhe3E4+U1wmdsFhp3uOBspjLl2tw4Zq6diaqygWNZw== Received: from DS7PR12MB9473.namprd12.prod.outlook.com (2603:10b6:8:252::5) by SJ1PR12MB6268.namprd12.prod.outlook.com (2603:10b6:a03:455::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9228.16; Wed, 22 Oct 2025 03:36:49 +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 15.20.9253.011; Wed, 22 Oct 2025 03:36:49 +0000 From: Zi Yan To: linmiaohe@huawei.com, david@redhat.com, jane.chu@oracle.com Cc: kernel@pankajraghav.com, ziy@nvidia.com, akpm@linux-foundation.org, mcgrof@kernel.org, nao.horiguchi@gmail.com, Lorenzo Stoakes , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , "Matthew Wilcox (Oracle)" , Wei Yang , Yang Shi , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v3 2/4] mm/huge_memory: add split_huge_page_to_order() Date: Tue, 21 Oct 2025 23:35:28 -0400 Message-ID: <20251022033531.389351-3-ziy@nvidia.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251022033531.389351-1-ziy@nvidia.com> References: <20251022033531.389351-1-ziy@nvidia.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: MN2PR05CA0029.namprd05.prod.outlook.com (2603:10b6:208:c0::42) To DS7PR12MB9473.namprd12.prod.outlook.com (2603:10b6:8:252::5) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS7PR12MB9473:EE_|SJ1PR12MB6268:EE_ X-MS-Office365-Filtering-Correlation-Id: 79af32ac-c360-4544-6cc2-08de111c3b7b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|1800799024|366016; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?dk6nv3RYMENTJkzE9S8k5VIuFozAwSdiKwCz9hS//Dm/KWWJQ/gM5LZCJaa/?= =?us-ascii?Q?jEpNEw63YYoMsxZlANj7eDcNr+DH93vzYaGP5ije2lC2XqL2XXLpKMO0Hvad?= =?us-ascii?Q?sx4rg0VbGa4+UsA+IIiK1EYlSzUE1gnSd06JyfbIDAy6LAEdU0Krk0XcmToL?= =?us-ascii?Q?UQg0/fvUqCr7Nbs3GgKh2UOzWxMgQmTM0dQEliuThEQg6l0DOcViJsp7495n?= =?us-ascii?Q?Z2jeDXZtYJqu1Z8XsqW4YkPoCr01p2uQg20pVDBIEijomTEZ9CtSSUYwH9Nh?= =?us-ascii?Q?MTEAz5hPVY6aZs9SQ2DBnOvKPZ9tSWy8KG03S+1JYJewnLu8dWjVo+FyKvdH?= =?us-ascii?Q?1f5u7p7DM+2nkAFhheANx5e7WWX32Taml/wnIvAMK674b5Gfn3+hP/sb8L/V?= =?us-ascii?Q?uUx+6No3SVk30xvAvrYLoC5EuUtCw3QhhQe7qn137O5rddse9f2HllTtM7j8?= =?us-ascii?Q?+wDvz7mXkBYw3EgTe2bmR+O8wVbmJ6PoTtjX9IqQRX/uMG9LNxLGeH6amDz0?= =?us-ascii?Q?Ro+fk3OilLaAC1qMhugeM4EiPOumWNNi5Gk/ChKqJvuYXM4vx9Q35HoBPW8S?= =?us-ascii?Q?KPQUC6bj4eDaFJ6N/Wo3bRtkZzo9ckiu4iq52HH6927jh6Ejtc9WdgkvwuG1?= =?us-ascii?Q?scPyyO6OgL0BXbVLm+qbx9rded2PAZ6P4h0ojvgVbiUD5q23IqWq3esSyFUg?= =?us-ascii?Q?+KRSJQBaqQLiKXxCySB317iFMd1CzdC1YIHLxj+hng1ErHu/5tQCjQ4KVa8M?= =?us-ascii?Q?SzAqN/WZ9OAqLStAroYCNnrYIRNL0CI/ZvYLfhObIXXY4s/rKY6frZ977vGV?= =?us-ascii?Q?gmYb5w0Dcsrva0/mEAyA+k+ohp8qj7LLVRuCCiJ8YZ0i4V0I2j6FbKLjer7Y?= =?us-ascii?Q?1pV2tTKfwD6aVuNwsbxierdW8b92DztNs5zR7xzFUWqy+N4akXRHNSFFB3H9?= =?us-ascii?Q?dOPPatI1vvF4aqjSXtC1aExSOewVmupMQphQGkDXJh/0HL3ylq4iNw8JPi+y?= =?us-ascii?Q?30/vu6cK/6fEk+9k58vOPOasAcubYwOsaBslOp/Kk2f+wK5uhenXKySqjR/r?= =?us-ascii?Q?MFnlQxpjbDKpk/7oW4KU/xA3ntyhB4MoDAqyPTP4ZXCGAlmPJL/XDe48cRbr?= =?us-ascii?Q?RfJ7l+aXExAu2CdNSgHb9xhbpFLhYXsa7pTS6Qq4VoDwnwBP4h6xvi0N52/k?= =?us-ascii?Q?CXNZfDj8jC4Z0P59YbnYFE2HIr+HZ4ZS0Bt575ZViSxPMtC7t48iWP3R+Vmk?= =?us-ascii?Q?/UDDZDYPIZHFf7Jq+KZOwlSWzQMkzGS5Qr6e+KCg9F7M0+eUio4D+bfsFWv4?= =?us-ascii?Q?9YrshuGrnDcdYrL3eO3eg/lke0IL/b0oe1edjYB6MAJVs2XdIf4tFnm63Fvk?= =?us-ascii?Q?+iIhpWIeWFT0+UoUu75i8G5fXZZk2vqZ03yZBX43M6uDegC2esxVcgv8tm6V?= =?us-ascii?Q?m6UaRYfarZjOOWIO5a+AuFUGZ+HHJwOs?= 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)(7416014)(376014)(1800799024)(366016);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?7OfP3tM67M1iUsykY371OP0ffntxOtMXr9S5os8sFWR7/ok2QKZ/qaCe0AWG?= =?us-ascii?Q?FW689G375dnMhvtXMtmMPvHrV/gOFW6sPnZZ82G1XlZQl9hWvb8kyF8bLacb?= =?us-ascii?Q?t0io8e5qqCy8kgTZcig7q/ytBP2fYuy8XYXsEa8jLIahF+PEqZziNrN2lftK?= =?us-ascii?Q?e22MPMFifHEg8z7+f1D9lHlhO6BVXSedzivnqypv5gvy184ejntjciXxx5Ph?= =?us-ascii?Q?qSXPUGQKL6FptoXt3neH3gJoGFEb7WcFyLcXs1atagS2CyJVTqKWSkJF9OFk?= =?us-ascii?Q?c5D3k4oh66jgfT21kA+CeS04PEqVyhBzmxqXpkrqfk1mEAcNoo8eb4yBkus6?= =?us-ascii?Q?9wTtJ+vrVCsbfBRoxPVNVYzqjpEfKTFaa/w+GPS4b/i89zfJeg9M8G4qtjKj?= =?us-ascii?Q?SCWIvmv7i8QzzFqqxaDPIuWfCqOueLk3HqSWTqhx08WecnUChf1xATwvAg/V?= =?us-ascii?Q?Ts8be1dGGzjXAnsIEF/hgHx4RzEm3Kxh1TqZVb5odUBkHeSPeTg61+XeXOMJ?= =?us-ascii?Q?DWwsnJzHTc6vErs9oV3VJkl1ifjV72K6PXXhMhlFjqpw+wL4IFSDpK7tm42H?= =?us-ascii?Q?+liXV8PROaRHONKliRNb1agF2obBYkbfeAp0I0s85gQNkrZS7kFs9Pus03On?= =?us-ascii?Q?39gs5hvTSS3qga5PLCBdKNDmFtR6WmYMWu0hDN33BPFOPyEKmaw+Lmz74wBJ?= =?us-ascii?Q?Mlv4l0RjBxeu8NQGF928gd1wdYKRvS6IURfbza8pRX4LGwrV/p5McShubp+K?= =?us-ascii?Q?adt/oOh2FQZlA0s8Yd6xF7EiXTTLfo99zHqo5o7iutMil9+tn9Gxy1rtYa/D?= =?us-ascii?Q?4L/0GMB99oZztChO/0jyBVrgOju/z0OAA4sM0PwWI51oXtNOc5pyIvRgQBs0?= =?us-ascii?Q?rmIbJpXyQwV9tgsV8k8yEntnzYhi6aeY9tXb64J/oqGJSvH1GOu0YLYeOWES?= =?us-ascii?Q?jca86mAIz36V/GXaMA+YgXHEodWtGBsZqs9TjL39Sd45C1JQEQUM+RclHiwE?= =?us-ascii?Q?fTFrWRfHdGBl8efGU2nDXM5SJjQ/QaAS7xnkuJKryHHhAZ/sMNBet4oUj3vV?= =?us-ascii?Q?HYhxL4yR98wAbKO6uQ4gwB26wwGoG57Qv9ak8kdLZ52PkPvIkTFF8POCuVwS?= =?us-ascii?Q?dmB30QKOeLUi1tPHURLRGvuMH7yero3zEtyPgHOvvQRyQtkINrIcMmojhO95?= =?us-ascii?Q?4ERkuyHx0DY9poQB/QOAW3AjlhwG9KNuUYCDG6sp7NXJxoB/ci2gx99aYyyX?= =?us-ascii?Q?vGNXFRuJnNLj2pqvX6ojXCixCtjnkksanWBkJngodMTaXkmpNGiqObBwn1Qs?= =?us-ascii?Q?f6gyMAfLvb11M4HsGtGtbu2uXigsxjO7QBojDC3u/QOJYTiDVMzDaMjdf54C?= =?us-ascii?Q?NaE2wp9yt+7TP68v+ekfMpq7w0s3q1iIkj/24DDCeMIoi8PJ/yg2/00wKVvM?= =?us-ascii?Q?+ZQGQyS8xTFjpU80s6j/dNhbpT+EZgTdbFZYhbSIhIGiCipPLYi5R5XWYTXA?= =?us-ascii?Q?JenYJMVk0G9JookvnI3mx1a5EJhFszfAdqdIM+wblfF58Y7+wyNfBckaaRVH?= =?us-ascii?Q?zORiroFC3DT0rzB3mA2nlcyuieNtJJuskilTjdi3?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 79af32ac-c360-4544-6cc2-08de111c3b7b X-MS-Exchange-CrossTenant-AuthSource: DS7PR12MB9473.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Oct 2025 03:36:48.9530 (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: TCrHqOLbtANXlbgdJPL5AS9L4DpVB7ErTl/iOIFdEontOI76oJuMN27NPuNjq9lG X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR12MB6268 X-Rspamd-Queue-Id: 8934F120005 X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: crrjpp8d6df8a5iw9hwywkmugkqbc4d6 X-HE-Tag: 1761104298-132362 X-HE-Meta: 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 YRRa077w G6JF9Fmq8rAsQu5Qrwo6ARHHdNA2imAroyHLfLd7W4n4b+9Odk8+Djh8aOgU8swgiJwFVgcW3RgupbAoUno2SGfsuEhlvzYvPDpwq2Ie4cjV7H/y0lIqvG/0Hn6jQwYHW3rXRqvw5LKY9UY8RfUq/hDNN67Gwveuvw96TJ5yk9MGyVWQVRR/A4RQqy7gKntv/wovmqoypZUhMsV4M8zM3opablr8qlWorxKKTe5YvanGGC8O1zOPCbQzACHiH9DUsTyu4KQID0iT/5SYGgHRbMjY6kh/kKwVEaPePD4mP0tfbMnkkc7I5O5Y97mHNxjb3jO+6Tq551eWwK8RZvhPktTBkhf2PHpa9yLHwief6ApSUyweDQtAy6xjVAcRN1dNVEaLGlmNZ72vx/p2d8Xke5ZiIZ+F8EbWxNAT5yNnGi0sqe8jtyhCS2z6wYikTzx5rLZibqs4jaBIcYFPNodeZIWyowyGM6USGH/+A18oyhU/NsHMfbA4jZcn2pmnIDoRm+aszZCqwW9uKl1cFct7qvQ+0SSPHan0a+V05 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: List-Subscribe: List-Unsubscribe: When caller does not supply a list to split_huge_page_to_list_to_order(), use split_huge_page_to_order() instead. Signed-off-by: Zi Yan --- include/linux/huge_mm.h | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 7698b3542c4f..34f8d8453bf3 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -381,6 +381,10 @@ static inline int split_huge_page_to_list_to_order(struct page *page, struct lis { return __split_huge_page_to_list_to_order(page, list, new_order, false); } +static inline int split_huge_page_to_order(struct page *page, unsigned int new_order) +{ + return split_huge_page_to_list_to_order(page, NULL, new_order); +} /* * try_folio_split_to_order - try to split a @folio at @page to @new_order using @@ -400,8 +404,7 @@ static inline int try_folio_split_to_order(struct folio *folio, struct page *page, unsigned int new_order) { if (!non_uniform_split_supported(folio, new_order, /* warns= */ false)) - return split_huge_page_to_list_to_order(&folio->page, NULL, - new_order); + return split_huge_page_to_order(&folio->page, new_order); return folio_split(folio, new_order, page, NULL); } static inline int split_huge_page(struct page *page) @@ -590,6 +593,11 @@ split_huge_page_to_list_to_order(struct page *page, struct list_head *list, VM_WARN_ON_ONCE_PAGE(1, page); return -EINVAL; } +static inline int split_huge_page_to_order(struct page *page, unsigned int new_order) +{ + VM_WARN_ON_ONCE_PAGE(1, page); + return -EINVAL; +} static inline int split_huge_page(struct page *page) { VM_WARN_ON_ONCE_PAGE(1, page); -- 2.51.0