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Biederman" Cc: Christian Brauner , Kees Cook , Jann Horn , Jonathan Corbet , Alexander Viro , Andrew Morton , Alexey Dobriyan , Thomas Gleixner , Oleg Nesterov , Frederic Weisbecker , Andrei Vagin , Ingo Molnar , "Peter Zijlstra (Intel)" , Yuyang Du , David Hildenbrand , Sebastian Andrzej Siewior , Anshuman Khandual , David Howells , James Morris , Greg Kroah-Hartman , Shakeel Butt , Jason Gunthorpe , Christian Kellner , Andrea Arcangeli , Aleksa Sarai , "Dmitry V. Levin" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , "stable@vger.kernel.org" , "linux-api@vger.kernel.org" References: <87tv32cxmf.fsf_-_@x220.int.ebiederm.org> <87v9ne5y4y.fsf_-_@x220.int.ebiederm.org> <87zhcq4jdj.fsf_-_@x220.int.ebiederm.org> <878sk94eay.fsf@x220.int.ebiederm.org> <87r1y12yc7.fsf@x220.int.ebiederm.org> <87k13t2xpd.fsf@x220.int.ebiederm.org> <87d09l2x5n.fsf@x220.int.ebiederm.org> <871rq12vxu.fsf@x220.int.ebiederm.org> <877dzt1fnf.fsf@x220.int.ebiederm.org> <875zfcxlwy.fsf@x220.int.ebiederm.org> Message-ID: Date: Tue, 10 Mar 2020 18:44:55 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 In-Reply-To: <875zfcxlwy.fsf@x220.int.ebiederm.org> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit X-ClientProxiedBy: ZR0P278CA0029.CHEP278.PROD.OUTLOOK.COM (2603:10a6:910:1c::16) To AM6PR03MB5170.eurprd03.prod.outlook.com (2603:10a6:20b:ca::23) X-Microsoft-Original-Message-ID: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.1.101] (92.77.140.102) by ZR0P278CA0029.CHEP278.PROD.OUTLOOK.COM (2603:10a6:910:1c::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2793.17 via Frontend Transport; Tue, 10 Mar 2020 17:44:57 +0000 X-Microsoft-Original-Message-ID: X-TMN: [7Oc0vrg7P6uiu2oSmedJe1YRpn2rdLIM] X-MS-PublicTrafficType: Email X-IncomingHeaderCount: 50 X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-Correlation-Id: 46783fac-8b56-4ade-3c8b-08d7c51ac071 X-MS-TrafficTypeDiagnostic: VI1EUR04HT216: X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: dScJnprfhiGs+zwiR6Q8vhFisfXCU/4VIETMRLi7yBeETADvAFnElQZ+OAp+OFPPMB/nGuhfQN1sraJYboXfy04Q/w1tbBng/XS57EOiKeQ3I9toRnfLNcd/ZRk0ZJCEOAbt1yuGBGR95yVqcavgJ99BiSUobmxgYGD/g4DBY73XVy+2o9hZclDpyPttQClt X-MS-Exchange-AntiSpam-MessageData: zx7zqshi40iLJe5uMRi41B5/qxktXGuQWDGut7otpSDOKVcnKYmjgzOqFW2lOhUjB3WB81riMF7Okpjhnmu4kgYKHJ3WAnf4ScmSoxCnu+Xh3bCCMcX3n1io8+lVtloGSOWxkRiwoveVNEp49mprBw== X-OriginatorOrg: outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 46783fac-8b56-4ade-3c8b-08d7c51ac071 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Mar 2020 17:44:58.8690 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1EUR04HT216 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This continues the execve anti-deadlock patch and addresses all of the (mostly) simple cases, there the new exec_update_mutex can be used instead of the cred_guard_mutex. Note: each of these patches is independent of each other, so in case one of them turns out to be controversial, that does not affect the others. Bernd Edlinger (4): kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve proc: Use new infrastructure to fix deadlocks in execve proc: io_accounting: Use new infrastructure to fix deadlocks in execve perf: Use new infrastructure to fix deadlocks in execve fs/proc/base.c | 10 +++++----- kernel/events/core.c | 12 ++++++------ kernel/kcmp.c | 8 ++++---- 3 files changed, 15 insertions(+), 15 deletions(-) -- 1.9.1