From patchwork Wed Apr 28 15:36:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liam R. Howlett" X-Patchwork-Id: 12229593 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,PDS_BAD_THREAD_QP_64,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A3EDC433B4 for ; Wed, 28 Apr 2021 15:51:36 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B3FE661185 for ; Wed, 28 Apr 2021 15:51:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B3FE661185 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 33530940026; Wed, 28 Apr 2021 11:51:35 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 30E6A940015; Wed, 28 Apr 2021 11:51:35 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 13A5A940026; Wed, 28 Apr 2021 11:51:35 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0039.hostedemail.com [216.40.44.39]) by kanga.kvack.org (Postfix) with ESMTP id EAD9A940015 for ; Wed, 28 Apr 2021 11:51:34 -0400 (EDT) Received: from smtpin32.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id AE3BC1E14 for ; Wed, 28 Apr 2021 15:51:34 +0000 (UTC) X-FDA: 78082215708.32.371961D Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by imf13.hostedemail.com (Postfix) with ESMTP id D0EC6E000127 for ; Wed, 28 Apr 2021 15:51:25 +0000 (UTC) Received: from pps.filterd (m0246631.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 13SFLhoL030867; Wed, 28 Apr 2021 15:37:32 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-2020-01-29; bh=ii4Gj0sLqNgTgGHxIX4Jn/kt01AmI16O+qYyu0fa6zo=; b=TzuXX8v5+T8+4OChndP8LIgZX/jx+cbUV57s0aLZsKiWT1qELu6vRp+mOpqR370vCgbb Zlou3qODePC1yor+oTla18r5ELDzoIb5R8BRUw+8SR2BxSXpEusBdMdnvf9ldA24c+DY 1479LwSd+23+mxP5p9iWdL7E2Rym9r3yj7XItX55F8Q6ycd0+EQBEYIq6dGUBFtxTZ6d MhAACVuWDP7mwRX0BCChEcdSNCwyjwECp5gLCvQCJd/JRf4ikCx73mU4plWg+hIjQnOZ O7rp4vAEuwClirYomczwou4jvwlDjtuBmJMBpMV/V+G1HXP2g4/02BOAjQ0nL62IczTh hA== Received: from oracle.com (aserp3020.oracle.com [141.146.126.70]) by mx0b-00069f02.pphosted.com with ESMTP id 3874kn0eqj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 28 Apr 2021 15:37:32 +0000 Received: from aserp3020.oracle.com (aserp3020.oracle.com [127.0.0.1]) by pps.podrdrct (8.16.0.36/8.16.0.36) with SMTP id 13SFZjx4021758; Wed, 28 Apr 2021 15:37:31 GMT Received: from nam12-mw2-obe.outbound.protection.outlook.com (mail-mw2nam12lp2042.outbound.protection.outlook.com [104.47.66.42]) by aserp3020.oracle.com with ESMTP id 384b58qq07-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 28 Apr 2021 15:37:31 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ObYNXQQqiRhuEHhwJlKHqzRuibfNP4qRLzX6igIen7r6RltIUVSR80N93hoLm6oj8fa+sK1mrpZx3QwJ5ju/oCMtO8tdS7LMpUwlcgCXG0E8G/N41p5P61SWMpVV0BBJIifsu2TVj0ZhPgSORl2MGoLU56r29Z9i5ZuxKS68G9GxWUfUEg5RTWgz0+mWLsgnxKVjkluctDa+UqPJ20OtLSD5yxiNX7zkOIXrGiZUna8d3v5L2PmuKDo8uTnR9hjdM2fhsUuz7SwWXTLuZmjwk/OnaWRvbUEAobu6ufucI+hoon4MJfXwJ++n1Ub+6MvFAVJ7PX9J5aHg0qiNKn8xNw== 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-SenderADCheck; bh=ii4Gj0sLqNgTgGHxIX4Jn/kt01AmI16O+qYyu0fa6zo=; b=jDjHHI69mHBIRnRW5JNGTeJCHtJ/M+m9q9npOLxb9p5cyHGtnasS9GAg0a2sMQ0Ftwf+AMBlK/AxYPzkRA4AeJ2h6n8YwhkX3+DjcmH586OeAsqZA07Em7gcfwnqB1rd9hj3YOfEl3x/dDtH4Npt+YKn4KToKSUoSemOqAKxJ/8Z7Bac6vEGG8FjOcKo8xW6fIHVeDNr2Dm0vPta/GG1R/eDKcTBWtyRg7+lq+H+NY+cQDu19bQETOdRKbfWrzXBibRtRO9nI1ImJvwZIBnlvBwFMt2p3dMkhaGbWcrNVE/4HN/XGz01pP20JcgQSFmooxBZyOA/eXxZp+9L6uSfTA== 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=ii4Gj0sLqNgTgGHxIX4Jn/kt01AmI16O+qYyu0fa6zo=; b=v3J59ZstnsY69dIL6YuYac/389OR5jKXoMJe8gof/ZjVlOfY2zfEM9SO0QDB6j4jiVQRqbaczjXGrsf32mkwLi4m6X2PXY6Si1U0YmCTGw8AxYj/wl/s2SI4OTbbJAK8b6wDvP1GiKNR9adMHJGaRw1NzciLpGH88sQiPvyZG1Y= Received: from MWHPR10MB1582.namprd10.prod.outlook.com (2603:10b6:300:22::8) by MWHPR10MB1871.namprd10.prod.outlook.com (2603:10b6:300:10c::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4065.25; Wed, 28 Apr 2021 15:37:28 +0000 Received: from MWHPR10MB1582.namprd10.prod.outlook.com ([fe80::353a:1802:6e91:1811]) by MWHPR10MB1582.namprd10.prod.outlook.com ([fe80::353a:1802:6e91:1811%8]) with mapi id 15.20.4065.027; Wed, 28 Apr 2021 15:37:28 +0000 From: Liam Howlett To: "maple-tree@lists.infradead.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Andrew Morton CC: Song Liu , Davidlohr Bueso , "Paul E . McKenney" , Matthew Wilcox , Laurent Dufour , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Vlastimil Babka , Rik van Riel , Peter Zijlstra , Michel Lespinasse , Liam Howlett Subject: [PATCH 85/94] mm/oom_kill: Use maple tree iterators instead of vma linked list Thread-Topic: [PATCH 85/94] mm/oom_kill: Use maple tree iterators instead of vma linked list Thread-Index: AQHXPERB5PvzM+bUHEWBdsrbi4tPvw== Date: Wed, 28 Apr 2021 15:36:29 +0000 Message-ID: <20210428153542.2814175-86-Liam.Howlett@Oracle.com> References: <20210428153542.2814175-1-Liam.Howlett@Oracle.com> In-Reply-To: <20210428153542.2814175-1-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 2.30.2 authentication-results: lists.infradead.org; dkim=none (message not signed) header.d=none;lists.infradead.org; dmarc=none action=none header.from=oracle.com; x-originating-ip: [23.233.25.87] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 23786676-6da2-4dfa-52d9-08d90a5b8792 x-ms-traffictypediagnostic: MWHPR10MB1871: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:208; x-ms-exchange-senderadcheck: 1 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:MWHPR10MB1582.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(366004)(39860400002)(346002)(136003)(376002)(396003)(86362001)(186003)(6512007)(66446008)(6486002)(4744005)(66476007)(316002)(107886003)(5660300002)(66556008)(71200400001)(110136005)(54906003)(478600001)(44832011)(76116006)(6506007)(36756003)(7416002)(26005)(2616005)(8936002)(1076003)(122000001)(38100700002)(83380400001)(8676002)(66946007)(91956017)(4326008)(2906002)(64756008);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata: =?iso-8859-1?q?5D9nJt/9DUw2H4YTVKltS3H3F?= =?iso-8859-1?q?i92LWBcJl2y0IUVzO8UBpieaj6D1IfhOKzOP4w1/twYGJGMf6sBaVWuDfvqy?= =?iso-8859-1?q?tiJ54BN1XkB/LcXXaKZ2hwMXNSiMisLGbrGrtp/U91U2FkWiCpawNhPmtcnt?= =?iso-8859-1?q?H2r2MPyy5q4z9rfYdlXiXcYJmGnSxQEkgKrVHBxyP4ET+g0msztV8laVkkwE?= =?iso-8859-1?q?m2FVJo9gogqFuzfoJlUMQUtsoSpIgyC0BF7in+pfgM41MNliDiys/HUNQleu?= =?iso-8859-1?q?Ihy+aMOXk7ZMgBt2N5BXIdfdZ5fZcW+qTKDcUJvqJJ0nobBYVSiG6npNna9s?= =?iso-8859-1?q?jZn4VVb6Oz0+LmYbj5N4jmk9146ymlUpaHRB9CTwLReSq1qfGjomkApAVOlV?= =?iso-8859-1?q?05bGTni4vXZzJ+5waOOIKpyDe6UYxw04rkMm/pZtQCIHaMnxvqzsOxDDuSzC?= =?iso-8859-1?q?+p2jw7SkRI9Ce5Dtqz+n71Wq0B7/YvuYl8bFkcrH8rEgzNmyxWoC/H+HLXKG?= =?iso-8859-1?q?lcgwvFF39jdZjM/QWziibzh8A/6mm54Up9kkRjstLtetcvFVk1A36hSSSnil?= =?iso-8859-1?q?/JA5admdd0zkUa75pPLGvlj1iaykLidwghH/eI3L3/fx2VN962N+yWK+9zFt?= =?iso-8859-1?q?+54nf1X0B6gPR1KGXpwVEo9RmVd3LPMZ90wv2BqydnHuxEgwMgKauXEJqkTx?= =?iso-8859-1?q?6A6jtERgvoLmM7qIhivKvv/Hq+wUNKaH2JBlmH8CaANqOyJJXqOzQmAuFukk?= =?iso-8859-1?q?V3ePrybKrS86FQLPe/GdrmHm3RYZoguB2/hEreXxxLsMEVKmEhsPi5eZBdQB?= =?iso-8859-1?q?q4LWTJvf+OGfbKd10MlV10GybuuqRshT0Fp6IH5Y+iuB2bmgQecPdCKIA9SU?= =?iso-8859-1?q?xUsC/eDLtWWzHe2agz7z9OWUziBQLrHt9/kV28GUJi9VVf6hjjOZ6j1uDn7G?= =?iso-8859-1?q?7uSdIbnhp0KBLmgInIKKGY2qnFn7sh4Kt8YpoDJvmJ4cpgHu0+Ab2HixYL60?= =?iso-8859-1?q?CsBnJaomXvQGvmH8f1H4fxFkiw0FHR8OJd+2BbPhPzS+9Xr42aqJG06L8i6C?= =?iso-8859-1?q?GKZonPp1d9pTJA6WXuMmHsK8FrKeB8OKJAaoQjq7DLDLO4LBuydEo/rje/Ry?= =?iso-8859-1?q?JgTMTt9H9uaXabbgMdrWX5xCVquxW1e/cskK9x7c4dnyCPEmf1wsPLBsz0iK?= =?iso-8859-1?q?1HsGI/Y/7lPurH5QJXFG3tKgFOtcynK0qFmQgO6R4IgzAMZ8ZWaaP/jFoxhJ?= =?iso-8859-1?q?RYjnzc34F0FdY2t54GgET9YxfI8O+KegKr9l1bzpQSnmPYHN06HqFrwC2y9z?= =?iso-8859-1?q?q6ElixwoNYlKCESxWWMEs7EXj4hNZxZyUu2O5pLdKtUsTJS//Ir4Du57COo?= MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MWHPR10MB1582.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 23786676-6da2-4dfa-52d9-08d90a5b8792 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Apr 2021 15:36:29.0692 (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: C6u/4D3yPahkyGoXm47to4YScw1xcunMovoxI0rTbswwouYPGZ7rgfSjWlpJt7lWdC3HHc0PnJOz0OQg5XcRGw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR10MB1871 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9968 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 bulkscore=0 mlxscore=0 malwarescore=0 phishscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104060000 definitions=main-2104280101 X-Proofpoint-GUID: QEYKSbcL7u2j08oRZM3DUaMZTIhyuQmV X-Proofpoint-ORIG-GUID: QEYKSbcL7u2j08oRZM3DUaMZTIhyuQmV X-Rspamd-Queue-Id: D0EC6E000127 X-Stat-Signature: iyahjo5o5kfzocoeu9ci8oigqn654nf7 X-Rspamd-Server: rspam02 Received-SPF: none (oracle.com>: No applicable sender policy available) receiver=imf13; identity=mailfrom; envelope-from=""; helo=mx0b-00069f02.pphosted.com; client-ip=205.220.177.32 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1619625085-502406 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: Signed-off-by: Liam R. Howlett --- mm/oom_kill.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 54527de9cd2d..1f6491965802 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -515,6 +515,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm) { struct vm_area_struct *vma; bool ret = true; + MA_STATE(mas, &mm->mm_mt, 0, 0); /* * Tell all users of get_user/copy_from_user etc... that the content @@ -524,7 +525,8 @@ bool __oom_reap_task_mm(struct mm_struct *mm) */ set_bit(MMF_UNSTABLE, &mm->flags); - for (vma = mm->mmap ; vma; vma = vma->vm_next) { + rcu_read_lock(); + mas_for_each(&mas, vma, ULONG_MAX) { if (!can_madv_lru_vma(vma)) continue; @@ -556,6 +558,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm) tlb_finish_mmu(&tlb); } } + rcu_read_unlock(); return ret; }