Message ID | 20220720021727.17018-37-Liam.Howlett@oracle.com (mailing list archive) |
---|---|
State | New |
Headers | show
Return-Path: <owner-linux-mm@kvack.org> 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]) by smtp.lore.kernel.org (Postfix) with ESMTP id B73DAC43334 for <linux-mm@archiver.kernel.org>; Wed, 20 Jul 2022 02:18:46 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 666D394000C; Tue, 19 Jul 2022 22:18:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5EFE2940016; Tue, 19 Jul 2022 22:18:38 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3F7CD94001C; Tue, 19 Jul 2022 22:18:38 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 259B0940016 for <linux-mm@kvack.org>; Tue, 19 Jul 2022 22:18:38 -0400 (EDT) Received: from smtpin15.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 061FB1403C1 for <linux-mm@kvack.org>; Wed, 20 Jul 2022 02:18:38 +0000 (UTC) X-FDA: 79705869516.15.8411173 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by imf04.hostedemail.com (Postfix) with ESMTP id 8080440060 for <linux-mm@kvack.org>; Wed, 20 Jul 2022 02:18:37 +0000 (UTC) Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26K0Kfc4017922; Wed, 20 Jul 2022 02:18:34 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-transfer-encoding : mime-version; s=corp-2022-7-12; bh=4SPxAHmLj31ouRAlcX/JHknvMOStmgpaQQOju3HYq/Y=; b=VFXNlTHNfOuVvNk+QZwpxe0srVU1W77P4QlKZN6OXNnsE2/H6EsXI/TStfewy57APi0e kewI4fcYKFvMJWghVEJacHvc24wGChUN2iK84J9aEqXULRkRf5NdIVKq9mLYa/WpdQAY xeH2mtYQA5NHQd2/1pqHn1EmBUQiJMQYx2zMJSTgsSeVLjz1+nMPh0OduivxWI8H5qI3 VAKmI6fUO/O+X9xDgQeYvMHod8qvXDBWXEb5lHJ4DYvgALpxhWg+VaadddH0deBsKSZZ SYKQHxWN1c9AFDsoyzU0DKFgOb9oxsaBhn6HlMblpEbYv+B0LkbuKWeSYGn41A8AhHpN 8w== Received: from iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta02.appoci.oracle.com [147.154.18.20]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3hbkx107u0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 Jul 2022 02:18:34 +0000 Received: from pps.filterd (iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (8.17.1.5/8.17.1.5) with ESMTP id 26K1UAlh002689; Wed, 20 Jul 2022 02:18:33 GMT Received: from nam10-bn7-obe.outbound.protection.outlook.com (mail-bn7nam10lp2101.outbound.protection.outlook.com [104.47.70.101]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 3hc1mbnuv5-7 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 Jul 2022 02:18:33 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=fgjbv7fsx4ycUebjY8q3AyONLX/1PBHXSmnvtlIv9L+pEApvqpwIlhryv5wW49tar4FODdGAlUM56LRK+kNLoF/7YmEwq1ndTz7EkdnfnyQmnLYSYUns2dHhFmuW8AjvBoKrSI/Ek7453YEJJF0atItvOT9KDqeMmEGqQ5UafDIZp68r/PpU8hdtDPiTq8lgEdjG3nrIYc1Zc6xaVGQTlHtbUlOE8MI7OuldSrnROX4wcMqiUk39t6CYc1Ohla1OJPT2g4XH6qHfh+fihncPA9IarMLFw0VkgR/RDg8D2S+EI+UxXjbUacWPIjtai88Qt90whWhaKuaWMXC/JhAKIA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=4SPxAHmLj31ouRAlcX/JHknvMOStmgpaQQOju3HYq/Y=; b=bAZiYH5kU5m6dPt+kc4bo+H2+8CV/hKt87S5bD2mlDuwHtHAd11s6bfpjz8+wUDZroe8SR5ZbDGWYqfH9lT2shWq2uieaTKj2GuPp+oG96j3CmhcNTxg/VkKx9t5nR1lqF4k8zOk4k0meQFcVfwYn3HpXasBR+LBv4LF4aA9+Ve15zX4Ya19ZeF6PvtW6sTn9ORf66YD34YGSZQY0GSSkxmcvqUraeOSEXjBo3FDYx7GrjvjilvIp4olP0mHkNtGBaO820Sv8av8mtWyB4PdhwIOqjVvaR5FWhCyfubnV5/XSim0J5eHzKGQ/MgHnoRP7SXikGMTC9h9a9E0wWZ/3w== 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=4SPxAHmLj31ouRAlcX/JHknvMOStmgpaQQOju3HYq/Y=; b=SrIbo+ZGKivKpS01096Kj3MbA1Vyw+EikKxP1ZNaOyaut7jszbc0rw9h17eyfsRNeftfNmwkUkvWLm1MiUeiderZsnR87gSInV8rDYokCKCdxcA7ps5MaSZKJ/Wvd7IPtlniQHnVBhoWaTYBJyrglatxY9p3ItZGG9o4CcE4we8= Received: from SN6PR10MB3022.namprd10.prod.outlook.com (2603:10b6:805:d8::25) by PH8PR10MB6316.namprd10.prod.outlook.com (2603:10b6:510:1cf::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5438.22; Wed, 20 Jul 2022 02:18:32 +0000 Received: from SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::c4d1:edc3:7d21:7c68]) by SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::c4d1:edc3:7d21:7c68%6]) with mapi id 15.20.5438.024; Wed, 20 Jul 2022 02:18:31 +0000 From: Liam Howlett <liam.howlett@oracle.com> To: "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>, "linux-mm@kvack.org" <linux-mm@kvack.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@linux-foundation.org>, Hugh Dickins <hughd@google.com> CC: Yu Zhao <yuzhao@google.com> Subject: [PATCH v12 36/69] xtensa: remove vma linked list walks Thread-Topic: [PATCH v12 36/69] xtensa: remove vma linked list walks Thread-Index: AQHYm97sMA9k1qbhxUOVQlVAtXzXaw== Date: Wed, 20 Jul 2022 02:17:55 +0000 Message-ID: <20220720021727.17018-37-Liam.Howlett@oracle.com> References: <20220720021727.17018-1-Liam.Howlett@oracle.com> In-Reply-To: <20220720021727.17018-1-Liam.Howlett@oracle.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.35.1 x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f3a91a2b-a232-4bb8-50c9-08da69f6245a x-ms-traffictypediagnostic: PH8PR10MB6316:EE_ x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SN6PR10MB3022.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(346002)(396003)(39860400002)(366004)(376002)(136003)(76116006)(122000001)(44832011)(8936002)(5660300002)(186003)(1076003)(83380400001)(2616005)(4326008)(66446008)(64756008)(36756003)(66946007)(2906002)(8676002)(91956017)(66556008)(316002)(26005)(41300700001)(966005)(66476007)(86362001)(38070700005)(478600001)(6506007)(6486002)(6666004)(71200400001)(110136005)(38100700002)(6512007);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?iso-8859-1?q?xJwXy5lqJYn+OpIclEc7fRT?= =?iso-8859-1?q?UircLa9CJAzd1+vNvZjwIM/74I4GP8DhTJS0lpgEBui3oNxkz2E7dwRIt1FJ?= =?iso-8859-1?q?rPscti5+VWu7Hp7thMLOytXMnUmNwW14/rmxtwlXxHAh/Wa8+/9o0u+Ma8rI?= =?iso-8859-1?q?Pfaim5OIjM53wzQiyPiHAQKq/K65qZOxGxzZHXeq02JGvN1k/EN5DB3i0og8?= =?iso-8859-1?q?FIl6A6lmD1Kn6QhOVMDSPXflHU/KX0p4/8inEdoxzbiFCFJQOy4w2WFl5mac?= =?iso-8859-1?q?pshVC+3ridYsN7zchc4r/imYYOqoZVAZNL0jtOQFLp4DusHOkxRtc/YA6wym?= =?iso-8859-1?q?QJkq4zSATCVIJj1jkrmpIa+RVUciP9y619FOAWW6uybmfWKVwHhHPZBLFJiF?= =?iso-8859-1?q?bVeH3BS5G79o6ksjPURuH+s4KFBCGvADK6ak4ssjtbYpu6JS3fCyNhxLBU7F?= =?iso-8859-1?q?X/WWz9cwljk51vdy/s9+VHQWemzUlZDV/rvekq5cec/WgSGHQCa1x/DBdkZf?= =?iso-8859-1?q?qm4/cFabd6/OS5TYMamp9kKE0TVYLzb/Ti4haZ/+t0GCS+GGVxzRQ3ow3H6j?= =?iso-8859-1?q?VXQlOiH7k1NjQauuofJ/uoz73VibKQ35OqERF05duuLZqdrK1YEycYVbeVUA?= =?iso-8859-1?q?sF7xzSmoQY0oopcxcp8xXjslYOYnFXFES5DkZAGE3O58QP+AjcKQWHr79pba?= =?iso-8859-1?q?lEn2RYSd1GugBgm48j5k+rZfnmC2I39dzgKRHKgkPKg6nMolKUtYYYBxVSb8?= =?iso-8859-1?q?76nUwyt2IoSMFBxFeizrUJ2Q86AWh/WALKlktSrumupYidOA3jYPGLzeSkd2?= =?iso-8859-1?q?kC75zGAPP941klo+UlCMUP8V2Q54Gww6qjQYv60+tOr4Mw9as4tlveQR6amW?= =?iso-8859-1?q?apAbBDR2CMa3lOinFdDk3L1Lxe0ABYQVCatX3aIMjiWZLGu6liZ1m8gGkGTz?= =?iso-8859-1?q?bqD2yQSW5m/BzkjQOC87M8fP89LQ24kMpSL/45IEP+DGbtknDEGWFBN7VarA?= =?iso-8859-1?q?KP5NAYYNq7bPiRLzFljU4VJbHXL1387dO/F6JYCI8pYhsC4GNA5PJhw205LH?= =?iso-8859-1?q?0IbNZJyktoNxcFWBUuIxLfgC59J9G4EdyZv5001t78XM9LmCyUQF/6pIgRNm?= =?iso-8859-1?q?A+lz6rWzQCjg8RrxpfRjOaOPK6raR6HvWjDHr1hZ0TTD6NauVoSr1XYykUFN?= =?iso-8859-1?q?sraMnaWUx/eT0Of5me7fuX/7AX2gxeizFGtER4cNSE/NeaxSum3AgCPnbpE8?= =?iso-8859-1?q?Il57wBXnf0aBVDAUq1CbDIuInADz1ZmepipPZMY8wq+r+ddP2w8tqZ5qbO/t?= =?iso-8859-1?q?1ABT0NvVCbPmPtFs5xIy3Re4ipK55idltTCqj6EF288CmtOd4rIxxOmuq46E?= =?iso-8859-1?q?lwJk6kb0PWgdk1Ql9pneY0bZlD0q5LKw07AokRouotEWT/myuXv7ELSdcq+Y?= =?iso-8859-1?q?zJNwAZ1BkySLtDGc07buyhzwa+vsP0v7sBbIo3D2Om3V/1fp7FywsLBp4vrE?= =?iso-8859-1?q?aahOdz9jx45d45zJCWkcPzuVY64qsZGIZrKjCVv54dc0d1BlTV0aDxMKwXng?= =?iso-8859-1?q?UuRasy4+S1YAGDgBg6f6/qe6lcyjP6OItlm4eDVBFNa+crPaADMN0pMZY8j6?= =?iso-8859-1?q?CWduhyxDd8pxenIp93NRaE/DFkhu1dgAALgVuYA=3D=3D?= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN6PR10MB3022.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: f3a91a2b-a232-4bb8-50c9-08da69f6245a X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Jul 2022 02:17:55.7743 (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: Bwb3cri2FetMW1t7xs+LOl1zQWgXZRPqYyMw2IuHHkN9XRXSMPys5wM+v2QUiHatx258rU3WVGNEapMzRpX3jQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR10MB6316 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-19_10,2022-07-19_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 phishscore=0 suspectscore=0 mlxlogscore=944 adultscore=0 spamscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2207200008 X-Proofpoint-GUID: dY5_nI0rLuOkqE9qLib3oL0Jq7qfNPBr X-Proofpoint-ORIG-GUID: dY5_nI0rLuOkqE9qLib3oL0Jq7qfNPBr ARC-Authentication-Results: i=2; imf04.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2022-7-12 header.b=VFXNlTHN; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=SrIbo+ZG; dmarc=pass (policy=none) header.from=oracle.com; spf=none (imf04.hostedemail.com: domain of liam.howlett@oracle.com has no SPF policy when checking 205.220.165.32) smtp.mailfrom=liam.howlett@oracle.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1658283517; 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=4SPxAHmLj31ouRAlcX/JHknvMOStmgpaQQOju3HYq/Y=; b=XKyiPtC6IJQPwPF9kZPoh9jafiHqH3iMYjs/H+wWSJraVgDVe7gaBJf1eaWM478Gf0G9w6 n15lJUcQUBfTr6ZYegHxr2+mI43xKcAI+QsgVwsikHr4iN4IzlBo6d8wkuxz+4W0R2bTPd nry118AQ1QJHJSbXP+RAOp3HTzP9J28= ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1658283517; a=rsa-sha256; cv=pass; b=h/cnzeCcXIwkySzieDYGM9nlsijAMr/MSCse1NLO/z5JkK6g9NS042EbnW/vvuM3IcC6uv SyyvQZKEfkMwAGgUcAV6nZ1b0hPPrgJgp6s0KC2wYw9YQgju8L18JBLdp8CYVnlZNFhq1/ ZIV/BLWGa76ngwJrz3rGbubemysypDY= X-Stat-Signature: kztzh9fpkbnqj17iuw5g8ryszywc7sjp X-Rspamd-Queue-Id: 8080440060 X-Rspamd-Server: rspam08 Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2022-7-12 header.b=VFXNlTHN; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=SrIbo+ZG; dmarc=pass (policy=none) header.from=oracle.com; spf=none (imf04.hostedemail.com: domain of liam.howlett@oracle.com has no SPF policy when checking 205.220.165.32) smtp.mailfrom=liam.howlett@oracle.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") X-Rspam-User: X-HE-Tag: 1658283517-572705 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: <linux-mm.kvack.org> |
Series |
Introducing the Maple Tree
|
expand
|
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index 201356faa7e6..b3c2450d6f23 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -58,6 +58,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) { struct vm_area_struct *vmm; + struct vma_iterator vmi; if (flags & MAP_FIXED) { /* We do not accept a shared mapping if it would violate @@ -79,15 +80,20 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, else addr = PAGE_ALIGN(addr); - for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) { - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; - if (!vmm || addr + len <= vm_start_gap(vmm)) - return addr; + vma_iter_init(&vmi, current->mm, addr); + for_each_vma(vmi, vmm) { + /* At this point: (addr < vmm->vm_end). */ + if (addr + len <= vm_start_gap(vmm)) + break; + addr = vmm->vm_end; if (flags & MAP_SHARED) addr = COLOUR_ALIGN(addr, pgoff); } + + if (TASK_SIZE - len < addr) + return -ENOMEM; + + return addr; } #endif