Received: by 2002:a05:6a10:f3d0:0:0:0:0 with SMTP id a16csp222379pxv; Wed, 30 Jun 2021 19:14:01 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxO52+YTK2J8rKbfgWjma0qVESWRXk2u7+T8NR7JXbUuWjMwO9d8wchj6QxbCQcYCMxJTax X-Received: by 2002:a05:6e02:18c9:: with SMTP id s9mr4206509ilu.220.1625105641724; Wed, 30 Jun 2021 19:14:01 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1625105641; cv=pass; d=google.com; s=arc-20160816; b=wFdVAazclHyzgRmjKzv3jwXndf6r1p9m2w1NUn5ykvqoUqEiVqDPg7ftOXyt8Ei8Ht KBH+Q40sMgt7wJybJOQxmQ6Tg0NyRhKi7uYPOKv05rQRJxus5nFGh3v3mVXF5wxjdSRE 5EjGUuO/8cLMFjfmkMKofQIxYTs2Ff09uQa0zWtWdFE5dVWq5sQUGpSr5hdgYaFzTqy3 uHecW+ylX0VtejyGy8kUZMCVY2+8eVmjNLdfeQOYi+o01TTpiD45/iAd7EiPSJiTZnMb MwRuWUX9m97i7TKkDIceS3TozGiY+1cckXz2/N2fjCx2UBVGtKTd0syq6ImpiWhINCs0 YIhA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-language:in-reply-to:user-agent:date:message-id:from :references:cc:to:subject:dkim-signature; bh=bLOYW8upqiOvp3nL70jirMCEh7A5QGDGyeLGZKszbnc=; b=cKNHIIwXC3CE7llUPVfllAhK+llXCU4XFBmw6EWNYbgFPNfXoK4F0o2zBRL3cJgNNQ OHCNJCEJA9YR80wKue0u9Bo6hUpNoWtl5mB2tX9aIk1wO0243mW4LT3PDyBNNbNcIYye SVex8ca7X5FNV5k4muiMd1WTtxl3jFiAi1cpATkaP+XwTQoz4wcPwc0G26hmpZRyNi5j BNR3g423pq3NNTrZKGKpRA0HSAZfFx5buaD8w5c36TLRFjGED/pjZzDQ8BdGlOWbV4sE pBtIIhI+pYbG0gEAPK7ygwXNa+8IRcsTqe8fR+djqqTLn/G9eAqLTOO+j3Rxic7qqD/K T8eg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@windriversystems.onmicrosoft.com header.s=selector2-windriversystems-onmicrosoft-com header.b=RXk3Udgu; arc=pass (i=1 spf=pass spfdomain=windriver.com dkim=pass dkdomain=windriver.com dmarc=pass fromdomain=windriver.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=windriver.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id x6si27676932ilv.59.2021.06.30.19.13.45; Wed, 30 Jun 2021 19:14:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@windriversystems.onmicrosoft.com header.s=selector2-windriversystems-onmicrosoft-com header.b=RXk3Udgu; arc=pass (i=1 spf=pass spfdomain=windriver.com dkim=pass dkdomain=windriver.com dmarc=pass fromdomain=windriver.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=windriver.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236473AbhGACOP (ORCPT + 99 others); Wed, 30 Jun 2021 22:14:15 -0400 Received: from mx0b-0064b401.pphosted.com ([205.220.178.238]:36842 "EHLO mx0b-0064b401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236453AbhGACOO (ORCPT ); Wed, 30 Jun 2021 22:14:14 -0400 Received: from pps.filterd (m0250812.ppops.net [127.0.0.1]) by mx0a-0064b401.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 1612BYcB015807; Thu, 1 Jul 2021 02:11:34 GMT Received: from nam04-mw2-obe.outbound.protection.outlook.com (mail-mw2nam08lp2174.outbound.protection.outlook.com [104.47.73.174]) by mx0a-0064b401.pphosted.com with ESMTP id 39ga5r934h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Jul 2021 02:11:34 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ajwjkNVM83nU0hVPTmI6uFrDEAL3JPbwuy8VSeD2blA8KE1Yz0B3lNKsfgNanCCjP92TJBXZuVChfcogFYp8ojZ5ytYmTQxVDEGHy43bOeUTWACc/CPO2wdxOXDv6EZ+M0b4g1Xk5bYwlKxd4Gj9d47P4JaXs9StLG3xD00TF/ZeK4HsSm3hPzoMFatFkA1yvqW7guHqGOe/nQcaZhRbz+2SAXNtnoLpoAf9V+fFSgju1+50BZ+chUlIKVWWEZYWW3+XyXb4EQEHHnvbaD7wpd2yCcOPf0ZwOQShuCmjSFMY670+KTNmhW5w+2+3EQ76FToD7EGnGwiu+WI7uHKiSg== 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=bLOYW8upqiOvp3nL70jirMCEh7A5QGDGyeLGZKszbnc=; b=bR5sOABy9KhFiyqvGOYmIpE7L1/4OWkw75M9+pXCn3uB1AZ2s96Yi7Iig74DepkLQ1o+UQ2noFSCN113tr51iuKONvMmlp55e7nCGctfz99scf3l1sNXNmgHSoMfISmTnGV6j0/0GnkSRElqMwSNB0TkC1zhyxRIfBgCqFWJCV2hxiSB0C1aDpHCmt6ck8b9KTeR+6i28pruAYcI1mZtnuAChG4rvj7ZfkgrZuZXNzoJpSUPB1dTtpd3taAzaFFaBEpQlnTmoUCNL/VxrRe10NqoQLVl1aSgJB3uRGP2smWa1kcpopQy4szzKaGqmnN2tPR90OScaMJgVSGPbW63Rw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=windriver.com; dmarc=pass action=none header.from=windriver.com; dkim=pass header.d=windriver.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=windriversystems.onmicrosoft.com; s=selector2-windriversystems-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=bLOYW8upqiOvp3nL70jirMCEh7A5QGDGyeLGZKszbnc=; b=RXk3UdguMUZgZ59Kj5F3x3kPCU1SxPYcDwipgvagwXzwS+6SifHyHMVgtLD4OZJfbVQpjHha9hGyrBSd0/Un/+ENuLojE+lWIMfbSLWM0Q2DBsX3BtMus9ave5+2ixnfWFyYxIJwTuqBqAryZ1jmEfi0mqgOwL1+Q87dt3iSk6A= Authentication-Results: vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=none action=none header.from=windriver.com; Received: from BY5PR11MB4241.namprd11.prod.outlook.com (2603:10b6:a03:1ca::13) by BYAPR11MB3061.namprd11.prod.outlook.com (2603:10b6:a03:83::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4287.23; Thu, 1 Jul 2021 02:11:31 +0000 Received: from BY5PR11MB4241.namprd11.prod.outlook.com ([fe80::34b3:17c2:b1ad:286c]) by BY5PR11MB4241.namprd11.prod.outlook.com ([fe80::34b3:17c2:b1ad:286c%5]) with mapi id 15.20.4264.027; Thu, 1 Jul 2021 02:11:30 +0000 Subject: Re: [RFC][PATCH 0/4] locking/mutex: Some HANDOFF fixes To: Peter Zijlstra , mingo@redhat.com, longman@redhat.com, boqun.feng@gmail.com, will@kernel.org Cc: linux-kernel@vger.kernel.org References: <20210630153516.832731403@infradead.org> From: "Xu, Yanfei" Message-ID: Date: Thu, 1 Jul 2021 10:11:22 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 In-Reply-To: <20210630153516.832731403@infradead.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [60.247.85.82] X-ClientProxiedBy: HK2P15301CA0004.APCP153.PROD.OUTLOOK.COM (2603:1096:202:1::14) To BY5PR11MB4241.namprd11.prod.outlook.com (2603:10b6:a03:1ca::13) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [128.224.162.160] (60.247.85.82) by HK2P15301CA0004.APCP153.PROD.OUTLOOK.COM (2603:1096:202:1::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4308.2 via Frontend Transport; Thu, 1 Jul 2021 02:11:28 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e7cc1550-d658-4cea-d4da-08d93c358a83 X-MS-TrafficTypeDiagnostic: BYAPR11MB3061: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3968; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: dz+8rYfYbUPZU6jm+zhV7xAvNGEpMYB8ROsSLZCF/rW7jElaEMl34oOdB7QVSi4ePk5+bYPqY6pyTP5Gnri4r+Ae0Qu2JIngyyZQg3hNvd0TI7TFWnRXwos4nYp9LUbKwTF/r0xarGMx+yaPjRaxPIOsz604XNllQ9pUNxyfTaxJnV2vC12lQXtOj5eAmZwz9dNeJLyYhYb6ACUyPkM7rYkGGgCED8mW1w5+epZfntdlKbG1zkPQkES3Fhd6Ts+S3IzFe7ejtBNr+nS+dUqxajWKG2uXYxLPrWFh3JpDjyKTcSsgc/63YhjvmXn/p2vdzk68va2v2i3JpD6dMKmNSIbGYpqezJIjW4FmXNJ/EpnQIl1PLu/5SDchFAaYj9Tt7x+RguSqwP3BlfuTYNoDtgJhOHrz2Y5Go83sAKKf9fgG7WC8K9BivTw+1+T18pp3CHbREXAH5WHDeuygMyb2SWAzX248roiHntmTrhqzvaG6UhuZMGg3WNEEmdOavc6F/HPGGDhsHKxj0b8bUdL9CXctdy5510EcjJbGYlIUt10yt/Oc5PX5lN/UU8uFUQErV8yoZrLgrNsP6gizTcBPUFLNmHVyRpiWA0pRQcNNmaces6ooZb0Vat+W8EWJ9JOKm6Q0Ed9e3IMFWcoSGc9c1AJb9ryWSn1MQSjS9VUxAe2y8zGfeWS6nBQ9N6UYgF+vlzhRd4QPHHbh7QRjbzY5+XZORgWG0w1jYaKWqolI52MzwkZHr7mLfffo3GDsjWzU3Y2QWOsfwk694L7slhP9q8TNoYTp/TXJyxRUlPrjPds= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BY5PR11MB4241.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(39850400004)(346002)(136003)(396003)(366004)(376002)(36756003)(8676002)(31686004)(186003)(38100700002)(6666004)(53546011)(26005)(38350700002)(956004)(2616005)(16526019)(6486002)(52116002)(316002)(31696002)(2906002)(5660300002)(4326008)(66476007)(66556008)(8936002)(66946007)(478600001)(6706004)(86362001)(16576012)(4744005)(78286007)(45980500001)(43740500002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?UnhzZER2OHp6Q3FXajJkTS8yemRWSmx5eUg1TXptL0NrZys1ZFNCbzYrZkxn?= =?utf-8?B?RFRyUFlXYnVoN2srNlYxUEp4bnJQQ1ErUkVOaUxmc3p0OEk2Qzl2YmlCSm1v?= =?utf-8?B?d1k2bzdIUjVxNDFHUE41UENQL0R0SXVCaFBXQWpFSUpEdHNkMCtBbHREZmt5?= =?utf-8?B?ZHg3WkZnZzVVa3dleVhROWdGTHpqVnNBWDdEY2xsSzRQZVl3NkpTS3VBdWJl?= =?utf-8?B?Q1ZoYXRCQVNnanY3aXVKSGZORUVpcURjbmtBL1MyYUdvdXdpWlRVZVpJbUgx?= =?utf-8?B?Z09JZnFiQVo2eVdlWGhyRU1WdVdTTHRMNVRnUVZrKzRia0Z0aGNvQzBMSUxh?= =?utf-8?B?WHNpRlhIQWdQVVorU2lCMFJyT2tqSlFHN3ZpL3FwTTYxcDhIbFhDWVhVdmVH?= =?utf-8?B?RnpKalJEVExyeHBPa1dwZnhmdTh6ck5OVXVIQ1J0VGNXS0psc2R3bERDc2dt?= =?utf-8?B?Mi9ydytIWEtLK25uS1lCdzJqWGNyNEZTWTVHK0hhWUJudUVXbHdoclRZSHdw?= =?utf-8?B?RUowV1krbG95RGJIQVJNNU5MZlEybDQwd0haNHRJSDE1SU8xWnZlK0pJeGd3?= =?utf-8?B?YlNJMkJwaDVjV3BKUVNEeWZQL1JyNWxyUXRWZ3o2dW5xMjJPR2RzblBTc2s3?= =?utf-8?B?dmUyMW54dW5FLzlVS3ZHeG9UbDhBeGVRUys3bUVXZEh4emEwdkg5bXVDcnBC?= =?utf-8?B?WDFxZXprM2JSV0EwZ0VpVmdUeUdzb2xoT0p4YnM5QXJ3ZEdkc3ZhVEdIKzl2?= =?utf-8?B?c3l3WHBmVUt0cVJZWTZzcEJ2S0wxT1VFd1pXZ08vdXg5TzRWZ0hybXViUjZC?= =?utf-8?B?K2xMcEFaSEdLY1oxbUdqNUJ2V3YvYTRqWGpUb3VOdmd0bi9WMVl4V1U3b21E?= =?utf-8?B?eXN3ay84aTUwbWJlWXNXYWVRSEdjMkpWc0Jyd0RING1ML3d4N25HU0FPRTJP?= =?utf-8?B?VXo0WVFWUHEyMEF1Uk5pVGRTOHpVSGJSaFRrN0sxeUxvVi9vaWk2M1E2Z0g5?= =?utf-8?B?NDhuUk1SNlc2RmN5eCtwc0FVbHJQUnpHekJkM1dmdGR5S3NKNm1zd3NyM0Jx?= =?utf-8?B?TEo4TVFvRXRUaGZRcmh6VThsTGFZcjFXbGlYMWoyUUttOWlzUmhmYTdMYlly?= =?utf-8?B?VXJWbnNNSFpsUFVwSmFZSDZaNTR0d0ZyZnl0NU96a3Q1b0huMVdzZUZIWEJK?= =?utf-8?B?UzVMMnAxVG1MY3RmOFV3U1pEbS9DUjVLQ2t0QlNHUExCK3YvZEc2Vm1IT01p?= =?utf-8?B?Q2lLRnRXWiszT0x2T1NoL2NQL3NFSUxPbklkWDVmTVFDTWtGeHdIaWxGd0M2?= =?utf-8?B?ZTF5cHljRXBnUjhNbEF2NzBXbnBzZ1FEb0l0dkRuWHRaSnZTakxFdjBFcUE1?= =?utf-8?B?NXB0STQzTWpON1o2NGlSYWNGMDNSUXZmS1lkZWlqaVBLc1czMW5mRHQySGNr?= =?utf-8?B?SmtBNHR2QXF5Rm9QclowSVJnYkwwTVRLT2JkbDlYRjdhaDZRRUllZnU2aDV4?= =?utf-8?B?Y3hBOUhTaldLMVdsOXB2d0YxQWQrVVByTS8xSWFWT1RlSDFCbjU1VVV3Vm1T?= =?utf-8?B?Q2pteUI3SHVYeUtHeTdhMWJ6TkdjN1FwdVM0TTlNbDhJaTEramlORDdNYW5u?= =?utf-8?B?MFBpeHQ0cXhsaVhmR1NuazdVakZKSGpCVllXeXBSOGdGTGQ3bXFLS0Zocngw?= =?utf-8?B?b0N1UlhpQmJUVXRPZlQrRjA0WGl6YndITE1zY09iMTcyM3R5M0NlQzVLTUgw?= =?utf-8?Q?zJTY3ixNYqGnZb7kysKV5EGjZY8X3z814AF7irj?= X-OriginatorOrg: windriver.com X-MS-Exchange-CrossTenant-Network-Message-Id: e7cc1550-d658-4cea-d4da-08d93c358a83 X-MS-Exchange-CrossTenant-AuthSource: BY5PR11MB4241.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Jul 2021 02:11:30.7332 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 8ddb2873-a1ad-4a18-ae4e-4644631433be X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: rS93WYKkUpeMsgfAeSMJILTfyqQjFhMlvbKGyTGc64OpkP/5sxKwxYBvgxOj+nr28+Pn/0YiYuvZwf0ybVtDyA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR11MB3061 X-Proofpoint-ORIG-GUID: 9FXnn7QAaeLhFMAdl_BiZtcR5PoJmV1y X-Proofpoint-GUID: 9FXnn7QAaeLhFMAdl_BiZtcR5PoJmV1y X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.790 definitions=2021-07-01_01:2021-06-30,2021-07-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 bulkscore=0 priorityscore=1501 impostorscore=0 mlxlogscore=991 spamscore=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 mlxscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107010013 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/30/21 11:35 PM, Peter Zijlstra wrote: > [Please note: This e-mail is from an EXTERNAL e-mail address] > > Hi, > > Cleanup and fix a few issues reported by Yanfei. > > Waiman, I didn't preserve your reviewed-by, because there's a few extra > changes, and I've not yet boot tested them. > Looks perfect to me :) Reviewed-by: Yanfei Xu Regards, Yanfei