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]) by smtp.lore.kernel.org (Postfix) with ESMTP id DAA06EB64D9 for ; Mon, 10 Jul 2023 15:07:40 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 783056B0074; Mon, 10 Jul 2023 11:07:40 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 732406B0075; Mon, 10 Jul 2023 11:07:40 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 585568D0001; Mon, 10 Jul 2023 11:07:40 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 4959B6B0074 for ; Mon, 10 Jul 2023 11:07:40 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id EF3851A015F for ; Mon, 10 Jul 2023 15:07:39 +0000 (UTC) X-FDA: 80996031438.09.B4CBB07 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by imf14.hostedemail.com (Postfix) with ESMTP id C9C77100060 for ; Mon, 10 Jul 2023 15:06:05 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2023-03-30 header.b=MlbnMz+X; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=O0Dz70QW; dmarc=pass (policy=none) header.from=oracle.com; spf=pass (imf14.hostedemail.com: domain of liam.howlett@oracle.com designates 205.220.177.32 as permitted sender) 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=1689001565; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=hol1y0EGm7dLNslOCZS1525/3fBNRu2zBEU2QZixxj0=; b=QRDua/jLU2GNMqBtPReVShxoRYagQZXbNYfGUm1peEg714Wkc4vNUE0vGB99zqr1HHBfbE mlTx2wSsWxzd3Vesh+t74Q/FXCEGRHfrvtTs0vVyg8dcEczivbcBbFx0/0eV4jNk7PKUuD kGAmS2VVPRzrpZBf3zE3QJiBhPqPu3g= ARC-Authentication-Results: i=2; imf14.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2023-03-30 header.b=MlbnMz+X; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=O0Dz70QW; dmarc=pass (policy=none) header.from=oracle.com; spf=pass (imf14.hostedemail.com: domain of liam.howlett@oracle.com designates 205.220.177.32 as permitted sender) smtp.mailfrom=liam.howlett@oracle.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1689001565; a=rsa-sha256; cv=pass; b=6vj/9wHhogt8EiRVS4H3kTz8WKoc0e53Xv6f1tF2EaHO4FsblExtW2hxu0BX1Gk961Zsqg 3L4bzXaAwAb3ueMIGbq2QUtdw+HFQzvG10C0wCSLJSWeAL9WqlBfZseILkPyTTW3Sez+tb zmHB7zHnpddUpyYteWVdwzjLg72heRM= Received: from pps.filterd (m0333520.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36ACcHLi022902; Mon, 10 Jul 2023 15:05:39 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : subject : message-id : references : content-type : in-reply-to : mime-version; s=corp-2023-03-30; bh=hol1y0EGm7dLNslOCZS1525/3fBNRu2zBEU2QZixxj0=; b=MlbnMz+X1QBb9gELx+6rpuRsGANRh/DWmEzG3gVQbhtrCd8u+/ugPHhauBCSfZZH3aOJ Aq0UZnQwFunY0gFeajvyK3/nMF2dcv1b+nusNg8rSxm2HL8pdUzAFJ7xkTcyspKx1n5i QIy0/P7UHRus/Uzt5STDqOMjNWVmPR8T1vARUjR1SrbwVegWbMHqUL/xZ8PiT4tfgy/c dya8gCJiU6UPXxGDRaEWW7hu6Zum6itFZ8ruDPAP4Bb2t+XYtmFCnhvB7oMiIT1cwPiZ iWsJYkJzlgUNBMzt95O0Tk93C+Aq849OooCjB4DmHAjOgGjitbITSSdZmgBcW6dMMrrG BA== Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.appoci.oracle.com [138.1.114.2]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3rpyud2tfp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 10 Jul 2023 15:05:38 +0000 Received: from pps.filterd (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 36AEYmLK027326; Mon, 10 Jul 2023 15:05:37 GMT Received: from nam10-mw2-obe.outbound.protection.outlook.com (mail-mw2nam10lp2103.outbound.protection.outlook.com [104.47.55.103]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3rpx83ka7g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 10 Jul 2023 15:05:37 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Dhu825RiYC+nmsE0I/mmPQ54sGwKyS1/sMdkRK3pRdeuSPpxOPz3jjgc0uQVjIVZWGxRrB5tLkQp5NotK19G6JXnb92unzfAzWKrNsLQmrdThE8JdUYNrq/ZAT2YM5BEg6MrSveKzc8GnWmItEFRH7fiHQA7qwNMrGgaR2Dqgh10xr6YyswtVHtEYOz4kKxNPByvEAGoc2im6Mj0hgZQmenL4FZFMsJd/MUXm64hxg5HlfxUbl6dc6DZe3cXYJRC2836o0F8E6MnZ7H4eq06i+rv4GXaErbWP6l5jr68VTYmG1w645I0YiB6guUs5gPYV4EoA+7iN4rM19mSeb/jww== 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=hol1y0EGm7dLNslOCZS1525/3fBNRu2zBEU2QZixxj0=; b=lS8VTsk4PJ7FR1Wp/hSc9JFyd5yV4BVaVc9W+xf7BIBmKnIJUD+rwwZ/Tobxc8MJIv3yz2r32c5vhUvP/Cb45nH3LIUq2RNmlE/A82U+QKUBuEzgXk73qeyvIS9tyqwTSBk+IIJgMs0e+CGu2pnsMEOTDv9J+v7NF5mNcRjtGLVCdoLDbF1b8tmwzYnGROZmLXx/o7pN+AAuXAAb7R49QRmJ2SuwXINJb+qeLvBJq/5eSf5XvnEN8jEzLLHXgDzfTsVh/L3/BQa7bCQzl4YTB6g7KN9ydqTPxmIycWcogurs3JrPr3iFr8tyBk5AkBiWiszy6oHqZPg9Td5HXzGWzw== 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=hol1y0EGm7dLNslOCZS1525/3fBNRu2zBEU2QZixxj0=; b=O0Dz70QWnKyMFp4gCnoM81+Y1HiXnKcya7/DnWr0zXKtfQrP6CRlZbe9V6ktJ90/I9MkOB3wBlz31M1c9K73Rd/bl9Ao62h6smvCBGgF909yLcPfng3c4AXH/0Xu1lnlUxudyfvtZHN9HhyymlEgaiTRvg4t559CRLefIy+xbvw= Received: from SN6PR10MB3022.namprd10.prod.outlook.com (2603:10b6:805:d8::25) by MN2PR10MB4127.namprd10.prod.outlook.com (2603:10b6:208:1d8::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6565.30; Mon, 10 Jul 2023 15:05:35 +0000 Received: from SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::998f:d221:5fb6:c67d]) by SN6PR10MB3022.namprd10.prod.outlook.com ([fe80::998f:d221:5fb6:c67d%7]) with mapi id 15.20.6565.026; Mon, 10 Jul 2023 15:05:35 +0000 Date: Mon, 10 Jul 2023 11:05:32 -0400 From: "Liam R. Howlett" To: Peng Zhang , akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org Subject: Re: [RESEND PATCH 1/8] maple_tree: set the node limit when creating a new root node Message-ID: <20230710150532.hvj7jzc5ep73yq4i@revolver> Mail-Followup-To: "Liam R. Howlett" , Peng Zhang , akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org References: <20230707101057.29326-1-zhangpeng.00@bytedance.com> <20230707101057.29326-2-zhangpeng.00@bytedance.com> <20230707151819.d5rvxalhewdv62nb@revolver> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230707151819.d5rvxalhewdv62nb@revolver> User-Agent: NeoMutt/20220429 X-ClientProxiedBy: YT3PR01CA0126.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:83::22) To SN6PR10MB3022.namprd10.prod.outlook.com (2603:10b6:805:d8::25) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN6PR10MB3022:EE_|MN2PR10MB4127:EE_ X-MS-Office365-Filtering-Correlation-Id: b5baba60-f69c-43e3-2883-08db81571d00 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:(13230028)(7916004)(346002)(396003)(39860400002)(366004)(376002)(136003)(451199021)(86362001)(38100700002)(6666004)(6486002)(33716001)(6506007)(26005)(186003)(1076003)(966005)(6512007)(9686003)(5660300002)(2906002)(66556008)(316002)(478600001)(66946007)(8936002)(66476007)(8676002)(83380400001)(41300700001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?qu2z4Zk/y5ASg5ZcVNoDH0kHPjNygRGLATK1XyRKEmisXhbbubqVzQkX5DaP?= =?us-ascii?Q?b3iKQT4xpMXQqE34k5h/wXh9HK+8MmKam+21qBOagjcTJcpbrXrR/Qi0eZef?= =?us-ascii?Q?OO7hpK4IXldWt7LhVlHh1oPNaUtPOgqVO3d2hakIv6Kab3Wzu/0Z6lqDkVGw?= =?us-ascii?Q?mBY3Ta5pPv8NUGjVR/NY44d03xFT3LF7Va7Rk0AGEXKqxRIJqP47L4Ay/P4E?= =?us-ascii?Q?1Zfkoqq4/uouas+jq2moGZ98l2SU+K/FUPFqdpU/kV6d5TVZ9wUn2XGHf9BB?= =?us-ascii?Q?AXoWynLmGkxU9xVX8+3YSxysT1UF+h0xOQHe3ux11eyXRWTbYyzIhqyot2PC?= =?us-ascii?Q?xnCPPbK+Y0KZbnNxGBYOLrAhc3SNy5buivLRbv0E08ijJndoZZSkQgAfb1XA?= =?us-ascii?Q?mjZZsHKc98l4u2MvtrVSmqL5rqbg2lnvL3MHE9opc5olzb6v6Ad0VypoWUal?= =?us-ascii?Q?kphHIAADkI/wAH1M8xOT9s2Pbj+NKsbWKjTaAQS9yayeM3icY9fxm9oDpxQF?= =?us-ascii?Q?/UkeMwC266VSGrNV/hcGMk5JAznAMfqvAvGym1Hons66NdpQdqnu5x4/mBDG?= =?us-ascii?Q?4xqpWPhe8X8jftrfl7nEzeJFxZ5aAf9kxUOyiXUs30iIcEXXc4fp4/FJFp3+?= =?us-ascii?Q?Fz5Gzc4NI/FED6R5gZjcO5JGaj0zDhOmFWtEEEVeo+1qN7jDi7+T2zEFOyIG?= =?us-ascii?Q?zEMRF4jGM/83mINeAvoATBxquFIxoEMKkA00t7Y3y9UX5P2ktVDQfDopPyOu?= =?us-ascii?Q?E0MViEWMfcPjW44TT03LPcPF2BTutkOGvKFnwG4QJC4iWBBkDpyPM49weflT?= =?us-ascii?Q?ROu3jlHeTATUiUw50PqZh1/lQINYFPlm0WfBkdupEwXUyiUBgnVmQ0MN7DcM?= =?us-ascii?Q?+2u3+mWYOr82Qxm+gbyqHmiOo6hGmVy7erQbaoi0JFoeb7JlNv3mfe8XE2P4?= =?us-ascii?Q?N71CfHSC2YkdyBxuMHkSCJqeeUTSTa9wjJZAmMNYX0+3ksTd75VwubxWTww5?= =?us-ascii?Q?w8A2yozHtEUyoc1FYm7Dnr+9XIDlcyy9iG5EUtP89E0Ka/MHG4bC1EE5ZFHV?= =?us-ascii?Q?byIk9vtbmvf/V2RrbNhEInsAYU+ItKfqysvO/4n/xhtcttdn+wRL8PZCjcqt?= =?us-ascii?Q?TzxRw+HE5BunfKM4gdJmMywvVWZ7Q894smWkE7NWoBmNMF1kbzAM4SV5bmOZ?= =?us-ascii?Q?PJfV5tuwNzpVhafCtGBBu3Ro9S6BJpkX79OeYdd/DYCGXmBwSxgDHgWqeHg/?= =?us-ascii?Q?d/mjJ9QusuJ6hiGCXjd7bH4FaCIL5a5dnlz3wHe6goi709gWEX9f/raAu+05?= =?us-ascii?Q?8Ok/N1lO3XD9JS6dzfFQ5ghDZTyywYLFuc7fqSUjXJSTSbfhldgU9u8AohU8?= =?us-ascii?Q?260xAhjJLcwt4tRrFAXsJNjbXxeTIOHgdZmPEtOPy3y4FzmO97wVuxbCR486?= =?us-ascii?Q?PkbGU7v37zd9YNt53fexpOMdReHIlidMcmm112vH6+tD8KdxhXLqS5pewifR?= =?us-ascii?Q?CIM2S8OMvNB88flf0+7BeyoZ8uGfPog1hCSrUr3YQl/JzUPTzFGxOi1uhrS8?= =?us-ascii?Q?NaXB+To3cDOUfubpdiTQRD90yyoD7Tn/A8wM6ZnFQX4aI2KXADTfHQX0guL8?= =?us-ascii?Q?hw=3D=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: =?us-ascii?Q?5YyooUZxbOs057QnLjn0A0pv2RmbfzEXTtgpiRuxpderf4+yLnkDs2orIQz6?= =?us-ascii?Q?36ufkpG1jacwOfNySFD48sqvxOQtsVRjKnbjw78DjbsX5HfK7sR/teChR24T?= =?us-ascii?Q?GBxr1MoUOX3WbIey+eOcFhzuUABI1nsBadEIY0rtyRkRRu8D6Cb5GQQVS+JN?= =?us-ascii?Q?OMEZ/GS36wr5S1TsFxyBW5pMEOWPzz5TBrgH0xh7+wn4MHwSdFR/Pk8dx4sH?= =?us-ascii?Q?ZpU72QbGz2vKVANHxCFmSvOHorQtmbTgpW1PtJZzaiWGF4Zwm2lXBQR21dLl?= =?us-ascii?Q?TnjRYLmTk6McjQrbArSvT9z/PRntXsBTUICJgM1oRkOWHisOQK+MHXbzcRfn?= =?us-ascii?Q?iToZVKUvygavYCUfGLUdHYxG8+EOnHUju5cN9VCsuP9HP60oCx4ErsObLfP0?= =?us-ascii?Q?M7kXFGYd6lcjwTSTxv8HNsyepF+iCxr6r9aHle6TY7VzMnbXVGcpIhn6MCDZ?= =?us-ascii?Q?SaKzKrckS/jySVG/9lbhYw3tWWwf+XU8U3pukSZJ2OH3mvkye0/NeoNfu7nr?= =?us-ascii?Q?HWY5+TGxdYawW8CbxUVPMytGchQ7yTh57hWkUdLlKLcTMls1ZUk5r/RkW/MH?= =?us-ascii?Q?d314cR8fpSc7JAwIFsLtEg5HP0Xh90UA1OyG2ed8SSVN7oNyQgvsooSOHBVt?= =?us-ascii?Q?QhT0tMDhSCOeHFachDMP9a8fpaNrGgKBa5exJo87lIgyRrzR2fz66uh1L8Db?= =?us-ascii?Q?dbVQ7VWd+vXFDbgpUpqX2nS/Y4cT3nCQ/0eYojcZYw63lNt/nwyQD1wDwoCp?= =?us-ascii?Q?nPX5gFA8+piIezDItADb9jqM42mCz1CYJvWGlCCoQ4NqPE7d2GChSUpOZ6g/?= =?us-ascii?Q?bLPY4ZSIqLnoBE/O5CCAAwj3KFLbaOYdEnYp5A3GF48UIxgMO8cwDeU9/bw0?= =?us-ascii?Q?nRkDZZooNsU3oTgg9vQF77/QFS1OOw07INaX6mBasZFc1c5Gp7quJlVpKJ5s?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: b5baba60-f69c-43e3-2883-08db81571d00 X-MS-Exchange-CrossTenant-AuthSource: SN6PR10MB3022.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jul 2023 15:05:35.3404 (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: HXMOza36T3XiOug2zy4CvW/rx4IIMOv7PEorfSc4OYOBo0ELu3QgXcCpDUOozYBLJquHtsvOCdANHfPQY0FsXQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR10MB4127 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-10_11,2023-07-06_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 mlxscore=0 bulkscore=0 suspectscore=0 spamscore=0 phishscore=0 mlxlogscore=999 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307100136 X-Proofpoint-ORIG-GUID: MHBkljdTlfcbVaWwWy5mgZWflba3dF14 X-Proofpoint-GUID: MHBkljdTlfcbVaWwWy5mgZWflba3dF14 X-Rspamd-Queue-Id: C9C77100060 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: ougsmqtmoybz9ekx465y4prbm1mztyam X-HE-Tag: 1689001565-505939 X-HE-Meta: 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 TES1hE+w 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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: * Liam R. Howlett [230707 11:18]: > * Peng Zhang [230707 06:11]: > > Set the node limit of the root node so that the last pivot of all nodes > > is the node limit (if the node is not full). This patch also fixes a bug in mas_rev_awalk(). Effectively, always setting a maximum makes mas_logical_pivot() behave as mas_safe_pivot(). Without this fix, it is possible that very small tasks would fail to find the correct gap. Although this has not been observed with real tasks, it has been reported to happen in m68k nommu running the maple tree tests. Link: https://lore.kernel.org/linux-mm/CAMuHMdV4T53fOw7VPoBgPR7fP6RYqf=CBhD_y_vOg53zZX_DnA@mail.gmail.com/ Cc: Cc: Geert Uytterhoeven > > > > Signed-off-by: Peng Zhang > > This has been on my list of things to do for a while, thanks. > > Reviewed-by: Liam R. Howlett > > > --- > > lib/maple_tree.c | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > diff --git a/lib/maple_tree.c b/lib/maple_tree.c > > index d3072858c280..f55e59bd9122 100644 > > --- a/lib/maple_tree.c > > +++ b/lib/maple_tree.c > > @@ -3692,7 +3692,8 @@ static inline int mas_root_expand(struct ma_state *mas, void *entry) > > mas->offset = slot; > > pivots[slot] = mas->last; > > if (mas->last != ULONG_MAX) > > - slot++; > > + pivots[++slot] = ULONG_MAX; > > + > > mas->depth = 1; > > mas_set_height(mas); > > ma_set_meta(node, maple_leaf_64, 0, slot); > > -- > > 2.20.1 > > > >