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 A965CCF6BF3 for ; Wed, 7 Jan 2026 07:20:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id EFE416B0095; Wed, 7 Jan 2026 02:20:54 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id EA1276B0096; Wed, 7 Jan 2026 02:20:54 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D2B5D6B0098; Wed, 7 Jan 2026 02:20:54 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id B85AB6B0095 for ; Wed, 7 Jan 2026 02:20:54 -0500 (EST) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 7A5CBC0856 for ; Wed, 7 Jan 2026 07:20:54 +0000 (UTC) X-FDA: 84304320828.20.60150C7 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by imf19.hostedemail.com (Postfix) with ESMTP id EABC21A000B for ; Wed, 7 Jan 2026 07:20:50 +0000 (UTC) Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2025-04-25 header.b=DU0Uw3kJ; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b="fIx/RM50"; spf=pass (imf19.hostedemail.com: domain of ankur.a.arora@oracle.com designates 205.220.165.32 as permitted sender) smtp.mailfrom=ankur.a.arora@oracle.com; dmarc=pass (policy=reject) header.from=oracle.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=1767770451; 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=eqe5MOrniyrPpur4jyjBxMt7L5rFpfL9tZVcfYXPjVo=; b=1i9LzjUg1spufnhS6RZDB4ALLqPI3HFnfxNMBbSkF042pUnAlxSXZSVa4WcHrurbcZ/POj yBXzpt9nfNLUQEVydrb+0IKyRKQFBi0Xnz1Y3o2FwPlE7xXDeGEj1T4YmcB9xiN+M3TMSj AyFPRaV1Vaa668Z8V1nhqdtu2WG5IgA= ARC-Authentication-Results: i=2; imf19.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2025-04-25 header.b=DU0Uw3kJ; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b="fIx/RM50"; spf=pass (imf19.hostedemail.com: domain of ankur.a.arora@oracle.com designates 205.220.165.32 as permitted sender) smtp.mailfrom=ankur.a.arora@oracle.com; dmarc=pass (policy=reject) header.from=oracle.com; arc=pass ("microsoft.com:s=arcselector10001:i=1") ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1767770451; a=rsa-sha256; cv=pass; b=XU8lg+OsLb1NArS4hS4F1A22oZOX2kQkTffwVW4XhsymwZ+calTdEU8Z+hWF02WQiP49rU NJZcz6Q23AO0Pen1CYg1y0K4WvEljkTgPNqcYokXsBfgKNIdnHKg5w4ls1nP6PbpxHKqLX ZKWhdZ5o/6cSs89bFYJLe5MMAJqY3wE= Received: from pps.filterd (m0246617.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6075ab3F1026291; Wed, 7 Jan 2026 07:20:21 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2025-04-25; bh=eqe5MOrniyrPpur4jyjBxMt7L5rFpfL9tZVcfYXPjVo=; b= DU0Uw3kJGZShjWDZCaVaGwEf8F/jSvYeayBUFkSm7tYOYrQkZ6ZVye7UVzck6Lzx LC5+sVUe7cthITLCsLgeLsYqNxMjrxtHmS3m17FPC/lw+MYz3KBPEU71ytg5b9cu P2iJk6coKjvWitIY1uSiRKTybnraKnnk2P0M6VYLSHrIEAeioYXdI0/6hTdL/m6X KKx/NBkUgERIIHRX8eU0Qmy24SAD9mIdZ2/8GlvXP0KtXj8drFQc6KcJNTJWGLmy z81OTjwTE74WkFMdnFNrLvR0C1Hus3sa72RfBCckck80tf+5iQZ9ocVgKG1irdMj 8jVVgx244yDsngpZObRGAA== Received: from phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta02.appoci.oracle.com [147.154.114.232]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 4bhhg7r2nj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 07 Jan 2026 07:20:20 +0000 (GMT) Received: from pps.filterd (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 607517PA027437; Wed, 7 Jan 2026 07:20:20 GMT Received: from bn1pr04cu002.outbound.protection.outlook.com (mail-eastus2azon11010005.outbound.protection.outlook.com [52.101.56.5]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 4besj999kc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 07 Jan 2026 07:20:19 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=jK3arttxhtZ+q9YAZtYK964UFb3ACSaabmbufD9Dpvoi3kOyCzrKZeJm3sTwIm02Ry1rMa90So2EnA+hJA7JM7o01QxdTG7hCE4zirKxheOYg/l5aqTkvoMOPhZ7+qJ9Sl3zqTAWEs5MiU8RQdn5NiAcAVJv09/fsQjtaLq7YOq+oFtJsvXJgwWzJZEKPEMGmlt9bygTKnp9ocY794o3vkKVkbqOvYyzO6VkxXmek5dcklS5cCT3rO3JM3O9C/YIRsES+aIZLcy6Jyyzfhdm4OJnTmiNFtxW0sy2ibd7KN3I2Ib3bkmtL7K45tvxeUEdZCUhCZTs109BbVXdb7geqA== 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=eqe5MOrniyrPpur4jyjBxMt7L5rFpfL9tZVcfYXPjVo=; b=UrWfTWNjLruo7YV0+E2G/55DMNEtBNg+SFeiksDdUgydac7PMEXmG7OkUU4ANLJbZDKwK0QAWsY4RF7LXQLuLkeh3qM/1OMrXomC4XeDGKL3c6YYgOI1fiJAkuRmPv6++Xy7vPzFR1W2MIF35NhDynqdRfPwPoiXOaq9gCZivmKeOhklSdQDGqY8SeGG92p9jUKBa/I3FM5yyoxdbxDOhrGZliiVT4VsvHI0pvMAHfR/P4NKkToKMEudeckpy31Bc5G7cjFvkjdjvRFup39A37bjEH6702YXervY7Ky19aqIChQpXUQC39PkKHtAOU7bAgtAG2POAfa1V4vTgJmhRQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=eqe5MOrniyrPpur4jyjBxMt7L5rFpfL9tZVcfYXPjVo=; b=fIx/RM50kNeFvWrDlku88ZRlPBUmblKEJusucPQO/TgkO1frVfxZeZMtLTlgU/rS+Nl4MQZwCNTBc2JM9lnRfK4HgAJccYbdHrK95Ab/jah1UNoGPeAl/S7sROQ46ZaF5XtQX1n8lAewkv4quOsR0Z+W6uBBEJTJzweEqqBq6nY= Received: from CO6PR10MB5409.namprd10.prod.outlook.com (2603:10b6:5:357::14) by LV8PR10MB7750.namprd10.prod.outlook.com (2603:10b6:408:1ed::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9499.2; Wed, 7 Jan 2026 07:20:13 +0000 Received: from CO6PR10MB5409.namprd10.prod.outlook.com ([fe80::3c92:21f3:96a:b574]) by CO6PR10MB5409.namprd10.prod.outlook.com ([fe80::3c92:21f3:96a:b574%4]) with mapi id 15.20.9478.004; Wed, 7 Jan 2026 07:20:13 +0000 From: Ankur Arora To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Cc: akpm@linux-foundation.org, david@kernel.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com, mjguzik@gmail.com, luto@kernel.org, peterz@infradead.org, tglx@linutronix.de, willy@infradead.org, raghavendra.kt@amd.com, chleroy@kernel.org, ioworker0@gmail.com, lizhe.67@bytedance.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com, ankur.a.arora@oracle.com, David Hildenbrand Subject: [PATCH v11 1/8] treewide: provide a generic clear_user_page() variant Date: Tue, 6 Jan 2026 23:20:02 -0800 Message-Id: <20260107072009.1615991-2-ankur.a.arora@oracle.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20260107072009.1615991-1-ankur.a.arora@oracle.com> References: <20260107072009.1615991-1-ankur.a.arora@oracle.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: MW4PR03CA0157.namprd03.prod.outlook.com (2603:10b6:303:8d::12) To CO6PR10MB5409.namprd10.prod.outlook.com (2603:10b6:5:357::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO6PR10MB5409:EE_|LV8PR10MB7750:EE_ X-MS-Office365-Filtering-Correlation-Id: d7a2a4bd-d34e-4562-2d99-08de4dbd32e8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|1800799024|366016; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?+9fcItcyI944Qy+7PBeYO37kwoXWUiiHc6hmfmMkQ2jgrkG0IytLcZb5RMli?= =?us-ascii?Q?Ns6M8Hm5eUsYofSzMVaEA5NTOgAdxs3D7Igz8p0/98y1wMOpKfYME8Os1O1v?= =?us-ascii?Q?8Y47h4UvIq6WrPvSp5DwE4wMfQsUoRE8CoGsP8z+Y3+RPjtaWge+Sl0bszlz?= =?us-ascii?Q?u+GElYlQv/z3lMOTnOHW6khjpsxqNaIHx56P/yv51OnxoVWLnWjYXsCeR0uC?= =?us-ascii?Q?y2ze/vr0D4uA8IMjoV7OL9x7+rb93YVBcfmp7VGqVD8IvKN+45zVSOewVi8q?= =?us-ascii?Q?KPzpgYTJ9yIlS8nC+SIoxj+e0x15bm9Q6cqt5/bt0p38fhmDfNnVAsh/V7fq?= =?us-ascii?Q?m5WW4nIVYZkOKCu+dovmbv/XtxhbccW9AL+2YJYTgkSN93l4WuH5US8aBjBz?= =?us-ascii?Q?XSdnoakjtx4HK4cYd5BV/RUQ2v+tQ2dPSP0zD4WNOXcQjBEGs1lVVDLCVZkJ?= =?us-ascii?Q?MI7YTEcTkgKQMj1OqpKcXxluQ7f30MSIrboK3omRuEY9kRn598+Owsv36wad?= =?us-ascii?Q?Vj0n2x9VilPHysvzmT4HF6WgDW96Rl+cdkiAFPZL2zc/zlfoGxr0IB7ZYgqj?= =?us-ascii?Q?BIoPR4A9XRyz/oiYSBL+YiGr3g6GHHtA8Dncja0QaIJLL3VQQxEPe+cNl45F?= =?us-ascii?Q?s5vRl/UWAV13vO02oyRLy8Feps5LYfm/ErpIJY2upGiRxnVFG9EJ8ghKExS5?= =?us-ascii?Q?hYSRtl/VS/LoCBkEAHp7rfHrg9V0xL7ouypCsCkXz8C65WZBF7Az4gRPMKEi?= =?us-ascii?Q?0oQzA3x6cTdbkQv/1nk7nfNxKDOfTLFzHA9rGq6cvRHB2Y7PyTRSz9X593Jv?= =?us-ascii?Q?u6xAUR8HbL9e3R7QdEFcI3ooOtICE4pri0l/bxovrwHBtPLWv00Ged9vQRrp?= =?us-ascii?Q?/0sLJTUFHU5pZwRPpUIrBZ7FqXOHzMfH6JWdIeC/5PSF6QrMmSlfpU4etWFs?= =?us-ascii?Q?wx6UUGHqerxB2Nbv/iqFYjttgdjuKTk9ryQi0ME7M5oxLsDHs22iGUS6+SFQ?= =?us-ascii?Q?qGkuynC83BuzSQqmwR5XBvCS1W8A48GV4vECW4hHdp52dmmyVSNKKW5DBUAb?= =?us-ascii?Q?aOJGays5294j15sDN6DZpvT6Tk6XPTxKw//zPMmetF3poKW7qISy1p1671uu?= =?us-ascii?Q?Br1DblOCKhhZDo9x1OfZL/MCFLnbzU1n9qi+DiiO0S3BxQKZbH/UPpXSToS5?= =?us-ascii?Q?IIioT0YRBJrQHOSUyGqS7vXGb30obWl54zymXoGDkQCwvxrQOYvlCkbk2qS4?= =?us-ascii?Q?fZITeI7TO+J08zF56d+qDMkBqSLTFzdJAtspNOBvh/Th8OjH/ipKLBLAdJOt?= =?us-ascii?Q?QHQmZeLDAyJZipb1qbhpLAnLCx1KlvC6TokdP1/5f/PnkOgMcsxTLdXFoHmd?= =?us-ascii?Q?7YyVpJm6Vf480mt1nBD4+Y6kckXd3jPcQ2wiXsGNYfx5pJgLNjNSwPrH5Rt/?= =?us-ascii?Q?6Yu2HioR5tW0NwY/ZP5mwJMNKCLt/YUb?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CO6PR10MB5409.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(1800799024)(366016);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?cVgNofyfGTVE8Uz33FHwLjOIB7Hetwn6UETp1M/lcrQ9TpmM9srBUB/xlG4R?= =?us-ascii?Q?62zgGNSrjPSDVRQ+oxPl+mk7ruSZr0q/Xt1ovTm6LXib0yKOhoXjNWcTYnpo?= =?us-ascii?Q?TMXFpO2pAxSab6IjBjxGl2SoDx9JZeLrgJp2bKrQq2zuVNVwEnWjM0H1dV2W?= =?us-ascii?Q?+g364UOvcQ4Pj6wc73n/fnwu1PksUr8i+mmSQEOXNt5H3phPwVCapH9eMX8W?= =?us-ascii?Q?273N6sSVCkWaYDxaqTvLj2TQ7m3eoS4YLn678dxfwoyyHc8KzXZpQVzMeymI?= =?us-ascii?Q?rqYgnnvQ76tvX25EH66Na2oiKB2Ql5ot2I1FICr4ZTk3pSmhd7/V0QwIqKAo?= =?us-ascii?Q?5YhWC83uUDWmGNB+tBdN4xeTb/2TLELXYhR3OWj6vunv+T5Cet/HuHvJ0uEG?= =?us-ascii?Q?EIO3SX81kA9ctcTzyFzoYOuwDG9o3UdJGuJoexrB3QZbOe3ZTmVBMIVQ2znY?= =?us-ascii?Q?IkMKdQ0qHuPUqpFTB6Bz9jCy2DPAeyBm1rBE/aoo81Mo/6HiKoZFoaFVVHsY?= =?us-ascii?Q?NADFUVg4XykdpMxNCnucjXG9YQNj3cNKIY5THbWSGynqCP515aEgB+1U5l+1?= =?us-ascii?Q?i0cnjQbO/FMCa6URuvoR1SGn7iic7RKZL0VuagJK0XQGZgQdv1bK5Kf/123E?= =?us-ascii?Q?x8r06v+A0X+hRVJwfNLi25hWy02JN7A7qGFZfUGWgKJmjLqXBZmmFY3lqADk?= =?us-ascii?Q?yUZW66BncEZd3fL1nwFVlEMBjUZTymGXrbLh2QGYNXQAMZ+kVzzxK7j/nip8?= =?us-ascii?Q?RVifNfcZbVO+KakWDrQmfC5IaCVo83JxfBadafQvKhDgW/ss3e3RKA1o+fB/?= =?us-ascii?Q?G0HfbnMec0y0gt6LZAYPd92ma2HXJcfyKe/SoT/1BIrG+fg2EQ52AopIA8z+?= =?us-ascii?Q?2Tr3SnrXZDEHu8bubr8wky7b5I4vNrx3w3i4t57t+DroP6xqyvYtPzYfj4GO?= =?us-ascii?Q?fEqc+Ul+Oy46YRstmU8vxokk1raGjJ+u8Fm5gd+uTzgzOBcHQrFCh3dcmcmi?= =?us-ascii?Q?y9ePTF06nv7jabZuM7nIeWyLPCrzl0II9qZX3v1V47bo1Oz4dgzZFVUt3wed?= =?us-ascii?Q?/8jDYUAt0LJavGEh8NSuZ2HzYyVSu26UJhBawVwo8FDYwMsaXOHdXqtkCxXU?= =?us-ascii?Q?9opLoU6vSBtVYLcuOYkncdcHgTqd09LgU+ZwgmSDzLln9P9qsPT2flfH7yGy?= =?us-ascii?Q?AaVV7vQI6pXZGG+QumQhYZAKKbTDMYT57M9PC868oI2EmJQuleAzRvLafJIi?= =?us-ascii?Q?hzpV9VYw7s2F0YLgT1d0H6lHX/KANOnEdNxFSAB87yqWEPsouCuhhpfTbym3?= =?us-ascii?Q?iZaNJR6rW/KOtB44n2njksMv+gJAtpRWFQPT/+yIgMyvluHgLnbvAiXg7zNf?= =?us-ascii?Q?dN69nV/2WiklXAyf1UX5filmVvz2kk7+kbti/mZj32gaktmlcz3sJfbmg84k?= =?us-ascii?Q?4NC9ntuRiKqyarIVrqYFeNpUaiBM946QfiJBneU3SXagZw1FWM3jdLaZlXsM?= =?us-ascii?Q?N37vNHp14viM4Uv/GNeetYPciJcdou1uk1ru8J5K65ybh7e5MxbgHkhPbrtR?= =?us-ascii?Q?EzJHsO+i3fc0PfsOfo7pbViJuX5xt6/GC4U7A5EyQsTGYi7Vz9294Awe17Ck?= =?us-ascii?Q?4fHsr9cvrzUl3l/O90MEO41ZQPSChy37CS4Piy/R3dQZmIqOZIw+37fkPWRw?= =?us-ascii?Q?hYfiHu/0vVEQzNAWk/xDgu0CK01W9KOleTeJDhpLUcT4ccXc9Xsx3a+oANsl?= =?us-ascii?Q?TFdjju4sdnjF4FhafoiVLibX91S8iMU=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: d7a2a4bd-d34e-4562-2d99-08de4dbd32e8 X-MS-Exchange-CrossTenant-AuthSource: CO6PR10MB5409.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jan 2026 07:20:13.2788 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: OOLwB230KczpHz/olHiB4UFDZIbe/PYapNMJr09Npr0iO1PpcT7HXwqkmQbdHPV4zL2GmMQBDoIw75v8H9OmrctOUJaf/TRPYsySgTfL694= X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR10MB7750 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-06_03,2026-01-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 suspectscore=0 mlxscore=0 spamscore=0 mlxlogscore=999 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2512120000 definitions=main-2601070058 X-Proofpoint-GUID: wxFtSgSWLtgnY5i2m5JPAkt3xggezUCE X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTA3MDA1OCBTYWx0ZWRfX1xlvm+CTL0f3 AAwL3HpnDZi2jVyvF3QEO6iH6kAwvYwhZMUQoyDCfiEYoS98UpSNkwiGlTXF8xJ8yR+s3tOZRkS fGjf2u3wDbvAiEcBflHBDq8AsKlRhnUye6/TmQlLlcDoxWbj7sD3ujbu0fW0b710/zxTciydiBW RVGoNnBwh9hRa351zUQfUHx9khx7kl3kHR+TytwblSXmrei+DdgiAAO8eHBqvdPWA7dnc51iiT1 4CbMk0u1Ss4229s+Obk/N0PEBKmfGcNYUgKlWTJiyR3bob/ivzqPyN8I/qz8XaXk3Yvls+NdvJQ nUAezigbANrtF66fqqI3liAtnlGWsgeihyjee+YZUdqGUT9e7mREQRCFbWVqSGvNSU/n7BIea+c fIITH0lcydvHOQTGQrBKhDxiM8Ihk2OuK3JINpVK1TzjXuL5ue9gwxAU9LEnn+kP4nWQ0MzwK+7 wXLEc3p8y6wj5p7H+9g== X-Proofpoint-ORIG-GUID: wxFtSgSWLtgnY5i2m5JPAkt3xggezUCE X-Authority-Analysis: v=2.4 cv=HOzO14tv c=1 sm=1 tr=0 ts=695e0934 cx=c_pps a=OOZaFjgC48PWsiFpTAqLcw==:117 a=OOZaFjgC48PWsiFpTAqLcw==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=vUbySO9Y5rIA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=20KFwNOVAAAA:8 a=yPCof4ZbAAAA:8 a=XISvpzbayW8Gg-unTeYA:9 X-Rspamd-Server: rspam02 X-Stat-Signature: ktw86anrm53erryky8j8jeyroyw7euob X-Rspam-User: X-Rspamd-Queue-Id: EABC21A000B X-HE-Tag: 1767770450-997174 X-HE-Meta: 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 m35Nfpo0 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 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: From: David Hildenbrand Let's drop all variants that effectively map to clear_page() and provide it in a generic variant instead. We'll use the macro clear_user_page to indicate whether an architecture provides it's own variant. Also, clear_user_page() is only called from the generic variant of clear_user_highpage(), so define it only if the architecture does not provide a clear_user_highpage(). And, for simplicity define it in linux/highmem.h. Note that for parisc, clear_page() and clear_user_page() map to clear_page_asm(), so we can just get rid of the custom clear_user_page() implementation. There is a clear_user_page_asm() function on parisc, that seems to be unused. Not sure what's up with that. Signed-off-by: David Hildenbrand Co-developed-by: Ankur Arora Signed-off-by: Ankur Arora --- arch/alpha/include/asm/page.h | 1 - arch/arc/include/asm/page.h | 2 ++ arch/arm/include/asm/page-nommu.h | 1 - arch/arm64/include/asm/page.h | 1 - arch/csky/abiv1/inc/abi/page.h | 1 + arch/csky/abiv2/inc/abi/page.h | 7 ------- arch/hexagon/include/asm/page.h | 1 - arch/loongarch/include/asm/page.h | 1 - arch/m68k/include/asm/page_no.h | 1 - arch/microblaze/include/asm/page.h | 1 - arch/mips/include/asm/page.h | 1 + arch/nios2/include/asm/page.h | 1 + arch/openrisc/include/asm/page.h | 1 - arch/parisc/include/asm/page.h | 1 - arch/powerpc/include/asm/page.h | 1 + arch/riscv/include/asm/page.h | 1 - arch/s390/include/asm/page.h | 1 - arch/sparc/include/asm/page_64.h | 1 + arch/um/include/asm/page.h | 1 - arch/x86/include/asm/page.h | 6 ------ arch/xtensa/include/asm/page.h | 1 - include/linux/highmem.h | 24 ++++++++++++++++++++++-- 22 files changed, 29 insertions(+), 28 deletions(-) diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h index d2c6667d73e9..59d01f9b77f6 100644 --- a/arch/alpha/include/asm/page.h +++ b/arch/alpha/include/asm/page.h @@ -11,7 +11,6 @@ #define STRICT_MM_TYPECHECKS extern void clear_page(void *page); -#define clear_user_page(page, vaddr, pg) clear_page(page) #define vma_alloc_zeroed_movable_folio(vma, vaddr) \ vma_alloc_folio(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, 0, vma, vaddr) diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h index 9720fe6b2c24..38214e126c6d 100644 --- a/arch/arc/include/asm/page.h +++ b/arch/arc/include/asm/page.h @@ -32,6 +32,8 @@ struct page; void copy_user_highpage(struct page *to, struct page *from, unsigned long u_vaddr, struct vm_area_struct *vma); + +#define clear_user_page clear_user_page void clear_user_page(void *to, unsigned long u_vaddr, struct page *page); typedef struct { diff --git a/arch/arm/include/asm/page-nommu.h b/arch/arm/include/asm/page-nommu.h index 7c2c72323d17..e74415c959be 100644 --- a/arch/arm/include/asm/page-nommu.h +++ b/arch/arm/include/asm/page-nommu.h @@ -11,7 +11,6 @@ #define clear_page(page) memset((page), 0, PAGE_SIZE) #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) /* diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h index 00f117ff4f7a..b39cc1127e1f 100644 --- a/arch/arm64/include/asm/page.h +++ b/arch/arm64/include/asm/page.h @@ -36,7 +36,6 @@ struct folio *vma_alloc_zeroed_movable_folio(struct vm_area_struct *vma, bool tag_clear_highpages(struct page *to, int numpages); #define __HAVE_ARCH_TAG_CLEAR_HIGHPAGES -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) typedef struct page *pgtable_t; diff --git a/arch/csky/abiv1/inc/abi/page.h b/arch/csky/abiv1/inc/abi/page.h index 2d2159933b76..58307254e7e5 100644 --- a/arch/csky/abiv1/inc/abi/page.h +++ b/arch/csky/abiv1/inc/abi/page.h @@ -10,6 +10,7 @@ static inline unsigned long pages_do_alias(unsigned long addr1, return (addr1 ^ addr2) & (SHMLBA-1); } +#define clear_user_page clear_user_page static inline void clear_user_page(void *addr, unsigned long vaddr, struct page *page) { diff --git a/arch/csky/abiv2/inc/abi/page.h b/arch/csky/abiv2/inc/abi/page.h index cf005f13cd15..a5a255013308 100644 --- a/arch/csky/abiv2/inc/abi/page.h +++ b/arch/csky/abiv2/inc/abi/page.h @@ -1,11 +1,4 @@ /* SPDX-License-Identifier: GPL-2.0 */ - -static inline void clear_user_page(void *addr, unsigned long vaddr, - struct page *page) -{ - clear_page(addr); -} - static inline void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *page) { diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h index 137ba7c5de48..f0aed3ed812b 100644 --- a/arch/hexagon/include/asm/page.h +++ b/arch/hexagon/include/asm/page.h @@ -113,7 +113,6 @@ static inline void clear_page(void *page) /* * Under assumption that kernel always "sees" user map... */ -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) static inline unsigned long virt_to_pfn(const void *kaddr) diff --git a/arch/loongarch/include/asm/page.h b/arch/loongarch/include/asm/page.h index 256d1ff7a1e3..327bf0bc92bf 100644 --- a/arch/loongarch/include/asm/page.h +++ b/arch/loongarch/include/asm/page.h @@ -30,7 +30,6 @@ extern void clear_page(void *page); extern void copy_page(void *to, void *from); -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) extern unsigned long shm_align_mask; diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h index 39db2026a4b4..d2532bc407ef 100644 --- a/arch/m68k/include/asm/page_no.h +++ b/arch/m68k/include/asm/page_no.h @@ -10,7 +10,6 @@ extern unsigned long memory_end; #define clear_page(page) memset((page), 0, PAGE_SIZE) #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) #define vma_alloc_zeroed_movable_folio(vma, vaddr) \ diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h index 90ac9f34b4b4..e1e396367ba7 100644 --- a/arch/microblaze/include/asm/page.h +++ b/arch/microblaze/include/asm/page.h @@ -45,7 +45,6 @@ typedef unsigned long pte_basic_t; # define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) # define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE) -# define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE) # define copy_user_page(vto, vfrom, vaddr, topg) \ memcpy((vto), (vfrom), PAGE_SIZE) diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index bc3e3484c1bf..5ec428fcc887 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -90,6 +90,7 @@ static inline void clear_user_page(void *addr, unsigned long vaddr, if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)addr); } +#define clear_user_page clear_user_page struct vm_area_struct; extern void copy_user_highpage(struct page *to, struct page *from, diff --git a/arch/nios2/include/asm/page.h b/arch/nios2/include/asm/page.h index 00a51623d38a..722956ac0bf8 100644 --- a/arch/nios2/include/asm/page.h +++ b/arch/nios2/include/asm/page.h @@ -45,6 +45,7 @@ struct page; +#define clear_user_page clear_user_page extern void clear_user_page(void *addr, unsigned long vaddr, struct page *page); extern void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *to); diff --git a/arch/openrisc/include/asm/page.h b/arch/openrisc/include/asm/page.h index 85797f94d1d7..d2cdbf3579bb 100644 --- a/arch/openrisc/include/asm/page.h +++ b/arch/openrisc/include/asm/page.h @@ -30,7 +30,6 @@ #define clear_page(page) memset((page), 0, PAGE_SIZE) #define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) /* diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h index 8f4e51071ea1..3630b36d07da 100644 --- a/arch/parisc/include/asm/page.h +++ b/arch/parisc/include/asm/page.h @@ -21,7 +21,6 @@ struct vm_area_struct; void clear_page_asm(void *page); void copy_page_asm(void *to, void *from); -#define clear_user_page(vto, vaddr, page) clear_page_asm(vto) void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma); #define __HAVE_ARCH_COPY_USER_HIGHPAGE diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index b28fbb1d57eb..f2bb1f98eebe 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -271,6 +271,7 @@ static inline const void *pfn_to_kaddr(unsigned long pfn) struct page; extern void clear_user_page(void *page, unsigned long vaddr, struct page *pg); +#define clear_user_page clear_user_page extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *p); extern int devmem_is_allowed(unsigned long pfn); diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index ffe213ad65a4..061b60b954ec 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -50,7 +50,6 @@ void clear_page(void *page); #endif #define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) -#define clear_user_page(pgaddr, vaddr, page) clear_page(pgaddr) #define copy_user_page(vto, vfrom, vaddr, topg) \ memcpy((vto), (vfrom), PAGE_SIZE) diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index c1d63b613bf9..9c8c5283258e 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -65,7 +65,6 @@ static inline void copy_page(void *to, void *from) : : "memory", "cc"); } -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) #define vma_alloc_zeroed_movable_folio(vma, vaddr) \ diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h index d764d8a8586b..fd4dc85fb38b 100644 --- a/arch/sparc/include/asm/page_64.h +++ b/arch/sparc/include/asm/page_64.h @@ -43,6 +43,7 @@ void _clear_page(void *page); #define clear_page(X) _clear_page((void *)(X)) struct page; void clear_user_page(void *addr, unsigned long vaddr, struct page *page); +#define clear_user_page clear_user_page #define copy_page(X,Y) memcpy((void *)(X), (void *)(Y), PAGE_SIZE) void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage); #define __HAVE_ARCH_COPY_USER_HIGHPAGE diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h index 2d363460d896..e348ff489b89 100644 --- a/arch/um/include/asm/page.h +++ b/arch/um/include/asm/page.h @@ -26,7 +26,6 @@ struct page; #define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) #define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) -#define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) typedef struct { unsigned long pte; } pte_t; diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h index 9265f2fca99a..416dc88e35c1 100644 --- a/arch/x86/include/asm/page.h +++ b/arch/x86/include/asm/page.h @@ -22,12 +22,6 @@ struct page; extern struct range pfn_mapped[]; extern int nr_pfn_mapped; -static inline void clear_user_page(void *page, unsigned long vaddr, - struct page *pg) -{ - clear_page(page); -} - static inline void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage) { diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h index 20655174b111..059493256765 100644 --- a/arch/xtensa/include/asm/page.h +++ b/arch/xtensa/include/asm/page.h @@ -126,7 +126,6 @@ void clear_user_highpage(struct page *page, unsigned long vaddr); void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma); #else -# define clear_user_page(page, vaddr, pg) clear_page(page) # define copy_user_page(to, from, vaddr, pg) copy_page(to, from) #endif diff --git a/include/linux/highmem.h b/include/linux/highmem.h index abc20f9810fd..393bd51e5a1f 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h @@ -197,15 +197,35 @@ static inline void invalidate_kernel_vmap_range(void *vaddr, int size) } #endif -/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */ #ifndef clear_user_highpage +#ifndef clear_user_page +/** + * clear_user_page() - clear a page to be mapped to user space + * @addr: the address of the page + * @vaddr: the address of the user mapping + * @page: the page + * + * We condition the definition of clear_user_page() on the architecture + * not having a custom clear_user_highpage(). That's because if there + * is some special flushing needed for clear_user_highpage() then it + * is likely that clear_user_page() also needs some magic. And, since + * our only caller is the generic clear_user_highpage(), not defining + * is not much of a loss. + */ +static inline void clear_user_page(void *addr, unsigned long vaddr, struct page *page) +{ + clear_page(addr); +} +#endif + +/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */ static inline void clear_user_highpage(struct page *page, unsigned long vaddr) { void *addr = kmap_local_page(page); clear_user_page(addr, vaddr, page); kunmap_local(addr); } -#endif +#endif /* clear_user_highpage */ #ifndef vma_alloc_zeroed_movable_folio /** -- 2.31.1