Message ID | 20220404143501.2016403-70-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 AB608C433F5 for <linux-mm@archiver.kernel.org>; Mon, 4 Apr 2022 15:01:34 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6001A8D0021; Mon, 4 Apr 2022 10:37:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5AF318D0002; Mon, 4 Apr 2022 10:37:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 38EEF8D0021; Mon, 4 Apr 2022 10:37:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 27C478D0002 for <linux-mm@kvack.org>; Mon, 4 Apr 2022 10:37:25 -0400 (EDT) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id D387DAB9D7 for <linux-mm@kvack.org>; Mon, 4 Apr 2022 14:37:14 +0000 (UTC) X-FDA: 79319449188.19.3121B4E Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by imf26.hostedemail.com (Postfix) with ESMTP id 26E0B140029 for <linux-mm@kvack.org>; Mon, 4 Apr 2022 14:37:13 +0000 (UTC) Received: from pps.filterd (m0246630.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 234Do9Yt012570; Mon, 4 Apr 2022 14:37:13 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : references : in-reply-to : content-type : content-transfer-encoding : mime-version; s=corp-2021-07-09; bh=FVCJWSsPE4Lecd5EUaEqty1EwursJB0dc8RXYVrp0kY=; b=ZvQnXrej99CVM3AANd36YP8RXUqCwJZnT+H/rJtoyIoJ4OOUz60JiQ1tfsru3Is9lcmL J5vSr6pcYV28ljE4GB8r4hX9u33EtOI0hkSQ08HGqDvnpZqPPHgc4LZ+uyl3HP5nX5rQ lxzHAl6R8ArRno4WRzG6OcajMr+b84TNwgBq3HXf7weUDvgRJZVVQ48t9oPr6B/Dyjpc V8ODnLnI3MI9dxR4tGu6fihN/kiI3hKwsD7P+eatKSJqol29bJn/tU+AhlwxjzOEjR/E HYvl4d4jlBaBmLDrA6zYM7EM4y3L1ymVPRKUs0Csx+ETqyNkPvVhjtPhAikrDcQfOR3W 3A== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com with ESMTP id 3f6cwcbbse-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 04 Apr 2022 14:37:12 +0000 Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.16.1.2/8.16.1.2) with SMTP id 234Eajoc011889; Mon, 4 Apr 2022 14:37:11 GMT Received: from nam11-co1-obe.outbound.protection.outlook.com (mail-co1nam11lp2177.outbound.protection.outlook.com [104.47.56.177]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com with ESMTP id 3f6cx2gw9p-9 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 04 Apr 2022 14:37:11 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ThSE9fM1fEAwGPvUFnWEm+XABZF/S7Hovin8P+f6s017icZMVKxqEelNudUleltuuaNCR3Z3cCupjojPuGtM216mtMFSdMiElxlSQCABCuXJf681n5tMAhjZIcwMlL7a3fUslve3h3zHEJKwAx/aPGG+4SiYgFXl3XghYz1n5pi2eh/s+NwlHlC2ZYFZMZVgaCF4ufRLfCqieRJH2DOTP50AhP+sT2RaHKEW6/hqOdHgq5eD3xY4ikXuW3BJNOvS1k6St4o6PZ8gDSMOFHXNi6/z9/P8mxBVfDXvYKdEZCzGUcfLlLf+lqr+MF2zvO1+u1gQkAwvh6jeYWqkc/346w== 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=FVCJWSsPE4Lecd5EUaEqty1EwursJB0dc8RXYVrp0kY=; b=ntnbYU12OafcyDLtHgde2q5dLbHnlDOuDXMhoNKvK8Sxz3b3uud0VnR43aVw1nfa2GsTLGr+0c+37OsqRbsa4LsAP20IpflhifnskT+zeHzm854qFn8fC20uyUYTbZq3sjQIugUe6+C7QavrTg0GMEIqd9stKgDeUgtUvsiXN14QnxsrFSH79M8rVn616nS/aepSVGZpKd6O0Kg54k8KStqMgr0SrRD/YUkw0nRx7rmSoXIVUjrjpUPu9u0qFOa7cFFAcwD77C8p5H4i1SZuhXKTzKgfodofFyZt0RcBHA5ZXKeLXujesZO6V0edydPNSvC8/zABzC4cvuzUu5tOpA== 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=FVCJWSsPE4Lecd5EUaEqty1EwursJB0dc8RXYVrp0kY=; b=nqetBfp11NQWpD91CoObAY/w4bd+uP5qmh69kxWi+9l8PCQvw4MJy4MWosO4h0eqaU/RkiBRRN1Kko5D0QVBXNUNKlZ9JUJDJYAP5TXJCgk72SjLBY4KAtsyjnXRVQzGUIZ7cHnbXDpCckvODPv5mfpEOOZdntSUpGoPVJiRB3A= Received: from SN6PR10MB3022.namprd10.prod.outlook.com (2603:10b6:805:d8::25) by SJ0PR10MB5742.namprd10.prod.outlook.com (2603:10b6:a03:3ed::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5123.31; Mon, 4 Apr 2022 14:37:08 +0000 Received: from SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::74fd:df41:4c93:24a5]) by SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::74fd:df41:4c93:24a5%6]) with mapi id 15.20.5123.031; Mon, 4 Apr 2022 14:37:08 +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> Subject: [PATCH v7 69/70] mm/mmap: Drop range_has_overlap() function Thread-Topic: [PATCH v7 69/70] mm/mmap: Drop range_has_overlap() function Thread-Index: AQHYSDFNNe0ZHJYu2Uma/rpDvPYYIg== Date: Mon, 4 Apr 2022 14:35:59 +0000 Message-ID: <20220404143501.2016403-70-Liam.Howlett@oracle.com> References: <20220404143501.2016403-1-Liam.Howlett@oracle.com> In-Reply-To: <20220404143501.2016403-1-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 2.34.1 x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 83a4cfa0-f3c4-4ad1-4aa5-08da16489910 x-ms-traffictypediagnostic: SJ0PR10MB5742:EE_ x-microsoft-antispam-prvs: <SJ0PR10MB5742BE46853E7C2CD85D65CCFDE59@SJ0PR10MB5742.namprd10.prod.outlook.com> 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:(13230001)(366004)(26005)(122000001)(2906002)(44832011)(71200400001)(83380400001)(5660300002)(64756008)(66476007)(186003)(38070700005)(8936002)(316002)(1076003)(38100700002)(36756003)(2616005)(110136005)(66556008)(66446008)(86362001)(6506007)(91956017)(6512007)(508600001)(6486002)(8676002)(66946007)(76116006)(6666004);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?iso-8859-1?q?ZhF50fFMrRdV/tJLgOlAGqN?= =?iso-8859-1?q?jU6wwcO9Y5mQFoR9Dhsy7CrqNOH0v+Fgn+CUAlPyggz33qktmIaPKXIc+oua?= =?iso-8859-1?q?j4kBgcjcDCea+GIV+rct5SfiIdccYgXdW7xNkmuoi2gokvN1y81UMa8VcUAg?= =?iso-8859-1?q?bM1xSW4Ptcclb5mbZ2meyJkUf9VDEBkR9w5ClGrZayJNziW0fY53CJPByr+m?= =?iso-8859-1?q?ZdIH5i80KmFMChpj03XM1zQhDkQd3nMSgjHHSvE6nIxT3MAVwyIgvF4y8C1W?= =?iso-8859-1?q?zJByZgtxtPBneKX2GUoN1njJvXwjQFN0uc0d6VXYPHH8LHbwb3/7SJE1YK+I?= =?iso-8859-1?q?bmrIb6lgkEPiPVK//gMhU34nk0sEJC+y6k0nTJhjuXYetQgFk7A8mM/TR87C?= =?iso-8859-1?q?f3jfmI0de2rZef8yZHmI4X/EKAW6rben2f72DkiIgq+VygjuAtHxCI4+YyJv?= =?iso-8859-1?q?LaeCnxZTQWwyobekUwc7n+TzYO3TE82W7iCihrcexDM7ERs5lHJ07kRYAFt5?= =?iso-8859-1?q?nUobg6xeDCJE2A15mEr0MfVMnKI1s7j+mr9VnHyq1YPAiayS3+q4Nmjg0Vqy?= =?iso-8859-1?q?Jwy9cBnQRfuwyIRzDjlSN5SkzAltUS448O7SwNqtRIQnlxNG/DDg55LIYhF9?= =?iso-8859-1?q?j4O2NBkciYtQ8E9KVI6vmXIYgixLj4znWQyDzdhJ8ShqWH3uhVOC4u7AD2Mg?= =?iso-8859-1?q?xNgu+Mg49u9c0VwsqQ0ukT3TYGF0aYRyiwQo7KDqA4ulr1FWvv3GpW5+M6pL?= =?iso-8859-1?q?XSAt3Ghy1DL6ZlMI8obIYao5Aqy66V2ljM37GHKz4pbactQNMKP+xEHeOx6A?= =?iso-8859-1?q?Ag6LnZcGG5ww83K5YmYhJjxCCzKO4sA/WXDttbmMDsTBDlN+2qaCFODcHPwN?= =?iso-8859-1?q?cHn51Vd9sYDncA5UgNpWV3wFprTJnJrBltu64RR0x8wQQIF0J0ug8R4asUhn?= =?iso-8859-1?q?Jt3K8CetMprUYfA1rin2lo79loIJYun4S9vkfU94RWIWbNTVw7ZOZGkbVdbj?= =?iso-8859-1?q?y9Orc8AYdptAuEFyhIn2I3Ba7GuF9BwReOc/n682yFMOXfUeYMdstr2K5HAU?= =?iso-8859-1?q?+JaJhATEKyzg1WrOqIhXwRvIcoeKTHhEubkDPV5S0GWR2TIRuh7Ecgmx7AYU?= =?iso-8859-1?q?SJMsrSQo3qy0xPGzwgrRQ4n7P7DiGSnZFZSEdnTVWWniDGaHxsX0QlRIow5M?= =?iso-8859-1?q?h9jBYoAFJdo0C4tLCyzm+opyAWxUrX2PmWjT6JYQGHrfMjngk2U4DlHTLYLS?= =?iso-8859-1?q?kgRPGSdmi0ptiAd3x6uuqXTodFynBE2pFHknemDX8hxfphNxYyEWbeY+pB7S?= =?iso-8859-1?q?kcO5XOElUvj9AaAZIqaWTEOO3R9x8Juoyscnpp1KNe8b0iRM3XxgTfnefPzk?= =?iso-8859-1?q?RHwTXIKOMqiM2KQ6h2+cpo2d9Cl0mLgPIK/h241F1Qn371CBLKmMiDCKCw/d?= =?iso-8859-1?q?wQ7VxoGHD7tCOql/AGgp3Ova+nl5KrTNiyChAHD0q2RABrXXaZuuzd0eQ8+f?= =?iso-8859-1?q?3YTKHtcaBu27kTJHnLcFnNt2STLbB3v6ab0JhUzym9zm7XLqroae0RKbTemb?= =?iso-8859-1?q?LJZmjPAEmOtMSYJHitTndikV/Gbllg61+hzBcmitRC2FX55BpVZs5O8xc8tn?= =?iso-8859-1?q?4W2JdB5Znm500LOxGhfg0ojVKFGNdhuATdarc7677tqeJ6O+ezIuz5JNq+wO?= =?iso-8859-1?q?ytAN/TdMFB5YjYh6iF9R3D0FBuPP+rZp9/eqtYfjXgQlLOTGTUsjrlVyl1sK?= =?iso-8859-1?q?bYxirethjf0pQhmHXdWjylIRdDr5bJtn1nXW3cqFZpGBU+KGMXsk0OVOnf5f?= =?iso-8859-1?q?yXejiI4U=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: 83a4cfa0-f3c4-4ad1-4aa5-08da16489910 X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Apr 2022 14:35:59.4706 (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: IsUaYPPfSjcBpO8e/D9OqQLdeFQlPq8kcIAvuWuGtrkRZCgdkZogkFOsjK4Lk3PIY54/Acp3i8gfvLziurMYdg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR10MB5742 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.425,18.0.850 definitions=2022-04-04_06:2022-03-30,2022-04-04 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 malwarescore=0 spamscore=0 phishscore=0 mlxscore=0 mlxlogscore=999 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2204040083 X-Proofpoint-ORIG-GUID: VhDV8Hn4G2t9BdbPNep9sRQPsXq883TO X-Proofpoint-GUID: VhDV8Hn4G2t9BdbPNep9sRQPsXq883TO X-Stat-Signature: 6e7k77y1je75ffoskon343nioeq1dze4 Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2021-07-09 header.b=ZvQnXrej; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=nqetBfp1; dmarc=pass (policy=none) header.from=oracle.com; spf=none (imf26.hostedemail.com: domain of liam.howlett@oracle.com has no SPF policy when checking 205.220.177.32) smtp.mailfrom=liam.howlett@oracle.com X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 26E0B140029 X-HE-Tag: 1649083033-273769 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/mm/mmap.c b/mm/mmap.c index 1b2916a38196..119251fa2d53 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -432,30 +432,6 @@ anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma) anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root); } -/* - * range_has_overlap() - Check the @start - @end range for overlapping VMAs and - * sets up a pointer to the previous VMA - * @mm: the mm struct - * @start: the start address of the range - * @end: the end address of the range - * @pprev: the pointer to the pointer of the previous VMA - * - * Returns: True if there is an overlapping VMA, false otherwise - */ -static inline -bool range_has_overlap(struct mm_struct *mm, unsigned long start, - unsigned long end, struct vm_area_struct **pprev) -{ - struct vm_area_struct *existing; - - MA_STATE(mas, &mm->mm_mt, start, start); - rcu_read_lock(); - existing = mas_find(&mas, end - 1); - *pprev = mas_prev(&mas, 0); - rcu_read_unlock(); - return existing ? true : false; -} - static unsigned long count_vma_pages_range(struct mm_struct *mm, unsigned long addr, unsigned long end) { @@ -3194,9 +3170,7 @@ void exit_mmap(struct mm_struct *mm) */ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma) { - struct vm_area_struct *prev; - - if (range_has_overlap(mm, vma->vm_start, vma->vm_end, &prev)) + if (find_vma_intersection(mm, vma->vm_start, vma->vm_end)) return -ENOMEM; if ((vma->vm_flags & VM_ACCOUNT) &&