From nobody Sat Oct 4 14:12:47 2025 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) (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 5C93C226520 for ; Fri, 15 Aug 2025 19:11:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=205.220.177.32 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755285094; cv=fail; b=soWfHf/QUs+IOA4vZv3xEkrxP/by9W8jtD9fMfvcB0SwVjLKSjMJI+Td65ykFBFMsw/9F3ouCSkq91okvPuDH9WmoSvyK6bS6MBbcz6iddl5QQ2hR/oNibyMyjtetu3WeamGI5KbogYHJvw4hOsp2zG9JdEVJC8E/yKC82+UvV0= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755285094; c=relaxed/simple; bh=31liWLYPwL8RpuMYy0hAlf5gLk3d8Dc8bxWIwfbVAcU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=Pu6IAA7L0AB/1qNU/AIGwSVPTQXMAwzhLa+WWNMGoWSIFTHG/YWfZREbV1zFfQm7gngVszhBbXQav5UxtNktWRBuXXATzv/pWkVXyNs+cEaUcoB+k8iodwnrA4jpdcG96r8kgQBGRCFK5Ry8yT8C1vpicgvxJ1a5QBPbc3Piu00= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=A4s+yTAi; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=Vx9TBR3H; arc=fail smtp.client-ip=205.220.177.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="A4s+yTAi"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="Vx9TBR3H" Received: from pps.filterd (m0246630.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 57FHkCVL005059; Fri, 15 Aug 2025 19:10:48 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=4wxnujMoYJWRrFHQRgJs6v/mLYORBDwH2vl1zWyYs74=; b= A4s+yTAiFaObx79vZRyMWwGZ18PSlDN+GrQy64DhaEEfrziFu3O33A55rhETiGTa qExwRkkqCYB7OQq6Qk57FsB6k4GANEDrXxB/zxOeIFQXUr4uIbZtTOj/XX8/8iNU ekl7HS5bUcH1FAlwSEy41ALEhmEnOTGAZJuEngHafqAcmxH/TDPSSPkcI7+paY57 mnsOdCfUu6d2LXvS2Dc2BF8Uoaq0yrJsBhTmxmdI7ZdTdUu8KCp/bXeFouYgdcw2 ZdKxF2tcR5TpFaokKJljGohbM8U6XQWlLDbi0w4fd6Fz/SSImdGc2EKXVMAEAy09 jIi05vNr5c3frq7eL8sUxg== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 48h7rmunet-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2025 19:10:48 +0000 (GMT) Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 57FINNY8010424; Fri, 15 Aug 2025 19:10:47 GMT Received: from nam02-sn1-obe.outbound.protection.outlook.com (mail-sn1nam02on2057.outbound.protection.outlook.com [40.107.96.57]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 48dvsmnb68-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2025 19:10:47 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=cX/M+Dy7h+aXnGZePaldl4RmV2Yj5tl2SOKPhI+bkf1U2fHDZ0funA2ZoEAcQ1FiYgSaMwDgRoYFEPP3tDVNwcl2LY3whISJwgbey6k8S3dridxeEZCdvID/pfJye+lTWDNdS3QJ0DvYFFsNMvW7oCItMQadKlo2FKGOrLfP7WMV+x4tgZP93P5yREwm2Hr2BIv/VqNyKGD0n7CzZEjM6PmBiI5Mq5M7BFwSHXvFyT7NS8zoDj1No08kpODyMX9GbVJIE5FCRDj7YUK6HlJ1s+wqU6BKCRn0AfryK1onDMmEhYpkvsd3U6RyUX8mRz5/kloJIP506/7tZ1Aq17wP8g== 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=4wxnujMoYJWRrFHQRgJs6v/mLYORBDwH2vl1zWyYs74=; b=ohts9zuh1DdsdKTlpq3Cc+kF7/Ev64WPjjuCt/3MicC4Hy91Go/uktOhoIfUVbJwannYuyECCBuVkGkoebyXq02UElD6i8eS+C8ScWW3qpKxWeIyAaw09HAUvnmM1jkCc/l68BlficKvQAZNTdj0MJEVr2A0Rw6OTPTIncr8pBJTYCos39daLlDny3+lLGEGMM9zJe0nYPhzsthaZcDurR++U4WTJAziGDgwk3gYHTyoXKu3TB+ONMhGX7RS6k7ah4U1kQnNLw9dMarP4yQMMvXyPJ/kCc/2KPnm0pzWt6Mh9bDZCJOgEjugh9ewNIVowXdr8bQ2n+wBI1Hw4Y9gdQ== 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=4wxnujMoYJWRrFHQRgJs6v/mLYORBDwH2vl1zWyYs74=; b=Vx9TBR3HzvShmfsynh19X368cIhxC/eQ8q5sN1qwtrZaLCDmpDB6DtY7NulqeGy6rY0yu++j8pitYDCZE8BvgyrHt74rCrLXfa2Xxa/xF54DLquF+v1tx2QAxPCRZI7o36q++yYleJiJcet/85vnVBshjId93To3msLWMg/55Zw= Received: from PH0PR10MB5777.namprd10.prod.outlook.com (2603:10b6:510:128::16) by MW4PR10MB6464.namprd10.prod.outlook.com (2603:10b6:303:222::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9031.13; Fri, 15 Aug 2025 19:10:44 +0000 Received: from PH0PR10MB5777.namprd10.prod.outlook.com ([fe80::75a8:21cc:f343:f68c]) by PH0PR10MB5777.namprd10.prod.outlook.com ([fe80::75a8:21cc:f343:f68c%5]) with mapi id 15.20.9031.014; Fri, 15 Aug 2025 19:10:44 +0000 From: "Liam R. Howlett" To: David Hildenbrand , Lorenzo Stoakes Cc: maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Andrew Morton , Jann Horn , Pedro Falcato , Charan Teja Kalla , shikemeng@huaweicloud.com, kasong@tencent.com, nphamcs@gmail.com, bhe@redhat.com, baohua@kernel.org, chrisl@kernel.org, Matthew Wilcox , "Liam R. Howlett" Subject: [RFC PATCH 3/6] mm/vma: Add limits to unmap_region() for vmas Date: Fri, 15 Aug 2025 15:10:28 -0400 Message-ID: <20250815191031.3769540-4-Liam.Howlett@oracle.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250815191031.3769540-1-Liam.Howlett@oracle.com> References: <20250815191031.3769540-1-Liam.Howlett@oracle.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: MW3PR06CA0004.namprd06.prod.outlook.com (2603:10b6:303:2a::9) To PH0PR10MB5777.namprd10.prod.outlook.com (2603:10b6:510:128::16) 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: PH0PR10MB5777:EE_|MW4PR10MB6464:EE_ X-MS-Office365-Filtering-Correlation-Id: 1ae990db-6ee9-4819-dcf6-08dddc2f6f65 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|7416014|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?APREwHqEnTgvzhuzD4qzYU76JtB9/jTUrW5ZgpHIAXzC0msPcXA0ZKsFsUp6?= =?us-ascii?Q?oggQP3EsrUONtXywlvp5sLmKW+fN8+dGPVbwDcohVtHqYuO2+8fwzV/MQtEB?= =?us-ascii?Q?h2Muw7HJpNX2PM64P7KP+CD7sKoUZiPxU7ejirZlcFphODiVoXe/NL1xfBHg?= =?us-ascii?Q?EJivEKfkEPTFcnwGg5Zr4/FtInrSN2mT8OrAeIgN4U+r+T1GhYeY6/rVcVfs?= =?us-ascii?Q?XRUjWORjWOHPnaLEnJOiJ5BGI5XH3NF/wnUdXOSo3OJXk0WnasaMy7lyO08l?= =?us-ascii?Q?urhT0z1+5SPOrzibkikCibF4pYxLO7Thsv0Mzsa//1cD9SilzTy3pICEBQkw?= =?us-ascii?Q?4pvyKkH6N/ofQLcFsKfNhxkV7uKAe9Q+u41CJdscv4OteDdfsN6OY5gf5tml?= =?us-ascii?Q?HrARE+kJhT76Akvv2u05lNlWvytduXBGPckzGtB5VPncalxTzPzUKXSoawAA?= =?us-ascii?Q?vTwhx6BQaCYA1jioSgVUKZZRzMdk/uM5gmdJpkrD1A0B7mxN84d3s+NuQiLl?= =?us-ascii?Q?o4/4NcEV1Awl1zDnN9hmuvHpUkGMOYXZc9D/axLro+tJ1BReMR/AKedavdyt?= =?us-ascii?Q?b5frPeBZ2/dMFWG2VM1FtSQ9V7aOcOGKojnKM8bs/B8Yb4UC7fopPsaNZnvg?= =?us-ascii?Q?IaLZdJbNJEkmCUrG/UUhgfzAj8DLUjoC2eQB6vg2hJ5m6sVJHCPf42v8GcuT?= =?us-ascii?Q?epXbzxg6fxuL8ULtBmIgqDTx0l0vDxlgWB4Mna4+uk7I9i1v0TqW71D+NZwO?= =?us-ascii?Q?07CED0wSccNkT2nldwQtB6rmtzADeJGuLYaTuC5UuelirBh9gTJS1Kyj6AeH?= =?us-ascii?Q?DVVU7zI435f18JYM1bPBRo6OgpmsxRR24l9q1NVqtLRLHkgbTLfee+TmiiaQ?= =?us-ascii?Q?qzOoDKzppJe8T1cc7n88zBItC7UhGhfgTC7VnKNSPbK4mnFrNWPRf+HjCLoL?= =?us-ascii?Q?Dv1BdkJDHgA6iOO4q/NwzGQZKfY3TSe5nwse9li9I3Bm0eYlRrGphiPB6cGP?= =?us-ascii?Q?gVl+KN/8BkE+SppFHMWBZ7JrCNfkFhoK/XTEOzjbTc9/fSAsjUgABWKpHQeD?= =?us-ascii?Q?bDQC6SxJue/sUNFDeMhSsX1F9l7qtqerFTbEAntX5nXvMZ23gt/mgh8+kLyQ?= =?us-ascii?Q?db25dnND4msgIY40LXcd5EXpT47u9pazscFk52QbKsC8cTXQok55c5ryF/e/?= =?us-ascii?Q?LlbyplHb/ZBfvro6fDi/nMRAdlyZa4BVx2dzwWQaPOl+dRS9OZljaF6lVRJN?= =?us-ascii?Q?fbGixagpREfY6jQ6MUixBEwAOxoA7tTR+BHPmkMI8gSFqa7Rn1MT+5JeVFsa?= =?us-ascii?Q?jQsPmpT83Sk/FkrMMPGXSXZ2qVg93fSKL9B2QnRtSPstowRGCtoUY421Agjv?= =?us-ascii?Q?bTT0RFeoYWOC9TVhWqB3TidIoNfrZgU9mWRIevzxSgrZRnDhtQ=3D=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR10MB5777.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(7416014)(376014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?pFB41GTF387XqHIWQnIKIONlZykl52WHmGVJ7Wnqr1u72zve0RxedHO9B6up?= =?us-ascii?Q?geJy7ZZjryBS0LKbd+o51O1CxAtxELNkFolUuIx0dXNwdb6OL0nJGwiYSG9m?= =?us-ascii?Q?4kz9GDXrgoDmfF/Pay1IZp/9RGKPfY8HDeHJY3cCTtC9j8NTio01UJghZeO5?= =?us-ascii?Q?j7G6wdLIc78wbulJrnGRrl+mWTeirpfiR08wWC90MRDWoWMyMODxezQL47va?= =?us-ascii?Q?EWUAfzrwV9HIkTrFtwv50g11u49GKMKSw7IZtteKSESIj1pWCUKEHLcCEZ3s?= =?us-ascii?Q?HkQ+Lpog7w9RkYpYiWM0byoOTf0LIskpzRp0CVKWVdXiFNGl2Ps8bDVT1Sx4?= =?us-ascii?Q?50MxmapFZMoQGRsIuR9cAlTKnF/uVT6ZRjw5qgXtDOQ5dBwAJlTUFO48CnP6?= =?us-ascii?Q?CVWBSdHDLrd3ecW1c1hffoCAwyKWr2U7M5tz0kExBXE6jh+4fWu77pk+Gp5x?= =?us-ascii?Q?1yFsr1uVbgZdTkC7JEWtfG6YbnwtqKuAC3wEozsRNi6CNl73D7gy/XGOkP4K?= =?us-ascii?Q?hq0G0xUk4OrOVI66OHdMwE60umV96Hw/ulIlkrF8U89RETaNZ7Vl/yf/RhIf?= =?us-ascii?Q?garsuqcpr6vrifs4xbprZJ1NszKjtRFAHp2RKZUGpZASSqLmdyapFXzqPFL/?= =?us-ascii?Q?gHbSJQjWszDU/CKbXHbE1dowHgfcmzDKvtM1ap8Dq6v9KEOcXaxm2nN+F3Ns?= =?us-ascii?Q?pr0Q+ZzdWym2Gk5WljZ80AFYCLt0/8yXmynBkyb2bBCCC1VuHPBNmfWGtSDl?= =?us-ascii?Q?k23vOFVna85pFEwofFVNNM5/gZl0i6nYoRiyav/2aCYGi2YcTXgAqEkNkGJ7?= =?us-ascii?Q?WF5+4E+nVOYTMZVQEelZIYFFO0ORLwFNLFtyIpNgyDTh95cfl4FBkIdSypNZ?= =?us-ascii?Q?Ja4XJU+pCMWls/K9sIj5nOjvsgAsrHTYMgzI/CcRCZb1ureSHEYARaLZGlbV?= =?us-ascii?Q?VqwqKSnNPsNnTFtkS83MXf3qbn/HIdB6hCJayg/wx8RW0h2hQIN4DM6W4yOY?= =?us-ascii?Q?gCT763km4PFOEqVPD5BJuWMJyN9aRAUsyHvRaz1nTq9u4m9saFsGVmsPEQH1?= =?us-ascii?Q?k2gX1xZlOu4YXRrKxbAKt4D+MYT4o5T41AcGSOg9XMJGWNfrchgCEk+C/8TA?= =?us-ascii?Q?rSfGdcxuKky7qAWYz/YQIUQXzhRm36/TiqWoeakEMVjlEJ51f4kuxS3L7fPV?= =?us-ascii?Q?BizhgvYv+1qBqAXS3/Iz/QxvPLCHzBv5abAWrTBawNvQgh05yULYEoNEfbwF?= =?us-ascii?Q?TN4/YgwOlIpFAevflI2rJTB+/oTcETTV32mkV1dty+NlJqsW6Gj/i4oEDcj1?= =?us-ascii?Q?62lIjhcFEI5R8V92VSZdRsKRDmPqF/RS7KknOtxeJB+UNdMk2MNIowBFlD71?= =?us-ascii?Q?13yhSvoZ7IEKPO3R2wTFfIzUc5dXrt/fJfnIfy2zPiE/96clhz6XJ/WmCkJt?= =?us-ascii?Q?CFQEedPFfI1DEVfH7lRlnyb/aoJ/1cKekabNEtJ0s7QIAUhuColxEWpLHB2s?= =?us-ascii?Q?TB9/yFiDSPuBvzp/+VjzDBlkHnvUzu7wnq+qxFOpXc+1AmPPu2twGb3I2Jsc?= =?us-ascii?Q?BWHDWviX/HC9DRZm9ukUhvw7duT4H0Q8tuxw3Ldb?= 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: 1ae990db-6ee9-4819-dcf6-08dddc2f6f65 X-MS-Exchange-CrossTenant-AuthSource: PH0PR10MB5777.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Aug 2025 19:10:44.8310 (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: rg6Y6T2+rq8wiUGARIMcpHpZRb2m17GD56qpEZfYhho9pWn90QJohBqGXwscI+6tqFZK6RaQ4BFEd0ALr+Lqsg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR10MB6464 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-15_06,2025-08-14_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=792 bulkscore=0 adultscore=0 mlxscore=0 phishscore=0 spamscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2507300000 definitions=main-2508150162 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODE1MDE2MCBTYWx0ZWRfX1vx6gB5M53I4 tK7tKqbRt1XwSt5LUqfR+1H7BTfH5HqXBlUomQDFMti6ddcwXkCT3Yj/e/3y5uIqBerzgzjYLO5 CIS39DD/XCK7ot4qxAnWgHUEhFBa8FHad6Q5Nm3STGWQUTXQmFYSUb/rQA2jI2n+pY9HhA12Tup pNPyfQnvExDcc1J4GCmd/mHwaLRHwgkZ27/jqoOPkAglKKlojXH6H9bUlwpGMSa8CA40qSpWlyu pUYt5E+lgKT6NmkEwE18y2MEU5G9qI9zhkOtVOQWI1/BPppr9jfRSThQTiL1GG1hTiymRElskWu VHFV6Gi7cFQUEoGpc9SHmp4omA3uv9iT+dWZUFdpuBIVja8G3+ALKGHMiT7NVudLorsRLOopy4N PrA7KaGsIZJQEM8+fo7BzYsm+E2THHlWskm4/Ry5Nk2LCWaIPsX+BOcwe+wajjIoLCJI+03P X-Proofpoint-ORIG-GUID: Z6NSdjbdvMtBy6SYRqFF9ptsY8CDYLjl X-Authority-Analysis: v=2.4 cv=UN3dHDfy c=1 sm=1 tr=0 ts=689f8638 b=1 cx=c_pps a=zPCbziy225d3KhSqZt3L1A==:117 a=zPCbziy225d3KhSqZt3L1A==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=wKuvFiaSGQ0qltdbU6+NXLB8nM8=:19 a=Ol13hO9ccFRV9qXi2t6ftBPywas=:19 a=xqWC_Br6kY4A:10 a=2OwXVqhp2XgA:10 a=GoEa3M9JfhUA:10 a=yPCof4ZbAAAA:8 a=vRAc46Nucz-5yIst6M8A:9 cc=ntf awl=host:12069 X-Proofpoint-GUID: Z6NSdjbdvMtBy6SYRqFF9ptsY8CDYLjl Content-Type: text/plain; charset="utf-8" Add a limit to the vma search instead of using the start and end of the one passed in. No functional changes intended. Signed-off-by: Liam R. Howlett --- mm/vma.c | 6 ++++-- mm/vma.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/mm/vma.c b/mm/vma.c index 3b12c7579831b..fd270345c25d3 100644 --- a/mm/vma.c +++ b/mm/vma.c @@ -474,6 +474,7 @@ void remove_vma(struct vm_area_struct *vma) * Called with the mm semaphore held. */ void unmap_region(struct ma_state *mas, struct vm_area_struct *vma, + unsigned long vma_min, unsigned long vma_max, struct vm_area_struct *prev, struct vm_area_struct *next) { struct mm_struct *mm =3D vma->vm_mm; @@ -481,7 +482,7 @@ void unmap_region(struct ma_state *mas, struct vm_area_= struct *vma, =20 tlb_gather_mmu(&tlb, mm); update_hiwater_rss(mm); - unmap_vmas(&tlb, mas, vma, vma->vm_start, vma->vm_end, vma->vm_end, + unmap_vmas(&tlb, mas, vma, vma_min, vma_max, vma_max, /* mm_wr_locked =3D */ true); mas_set(mas, vma->vm_end); free_pgtables(&tlb, mas, vma, prev ? prev->vm_end : FIRST_USER_ADDRESS, @@ -2417,7 +2418,8 @@ static int __mmap_new_file_vma(struct mmap_state *map, =20 vma_iter_set(vmi, vma->vm_end); /* Undo any partial mapping done by a device driver. */ - unmap_region(&vmi->mas, vma, map->prev, map->next); + unmap_region(&vmi->mas, vma, vma->vm_start, vma->vm_end, + map->prev, map->next); =20 return error; } diff --git a/mm/vma.h b/mm/vma.h index b123a9cdedb0d..336dae295853e 100644 --- a/mm/vma.h +++ b/mm/vma.h @@ -281,6 +281,7 @@ int do_vmi_munmap(struct vma_iterator *vmi, struct mm_s= truct *mm, void remove_vma(struct vm_area_struct *vma); =20 void unmap_region(struct ma_state *mas, struct vm_area_struct *vma, + unsigned long min, unsigned long max, struct vm_area_struct *prev, struct vm_area_struct *next); =20 /* We are about to modify the VMA's flags. */ --=20 2.47.2