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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99BBEC61DA4 for ; Thu, 2 Feb 2023 23:26:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233220AbjBBX0E (ORCPT ); Thu, 2 Feb 2023 18:26:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233158AbjBBXZp (ORCPT ); Thu, 2 Feb 2023 18:25:45 -0500 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 546AD62793 for ; Thu, 2 Feb 2023 15:25:42 -0800 (PST) Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 312IDmlo027106; Thu, 2 Feb 2023 23:25:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-transfer-encoding : content-type : mime-version; s=corp-2022-7-12; bh=YyX5FcTVXPfGWxJkJKarYQzlIruAFxA0wxiAnVnrvZs=; b=fJThlsKwsJDzFC+Dd1WBsIqmS7CN7IPF82fH/LFNfR5fMM+epyV1RJhBItoi1qJRWGXi TsoerqbZmceR0gpCBRhrDogKAr74be69kj76xTAXCZHEErPsGR/KgPwCcrO793dV1KCf ++dnJdZv7m8fAcVD45wDTktttjPHsN5LQJmOCOyoHMBmZrO4jOGdqqCxcq0BH/OSXqLc kZaTXc8pJMsP5dxlM1B3G3WRHfUJxy1m8zq3u7KVvqRa4z3WdTb/Gt2TDuANfWEUHwx5 DkNgZnAQlKm8h4c5H2pEQAhuFd4ihH//2qCy/GJEy+X6kUAKjczct9fUw1rYVD0Tdr+O fw== Received: from phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta02.appoci.oracle.com [147.154.114.232]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3nfpywm6cs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 02 Feb 2023 23:25:25 +0000 Received: from pps.filterd (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.5/8.17.1.5) with ESMTP id 312MlwMg005929; Thu, 2 Feb 2023 23:25:24 GMT Received: from nam11-dm6-obe.outbound.protection.outlook.com (mail-dm6nam11lp2176.outbound.protection.outlook.com [104.47.57.176]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3nct59rb4b-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 02 Feb 2023 23:25:24 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=QZcu7HhhMYzVZ5BJ+CiEGyAE7M4fhTqZ60BOsD3oZSB8f9zbB3wKFtQzPk/f0aFCJzpj1ZSrGSnd9TZVEgRuOjSClFhP6brwGOkfUIZSw4TOLZrN4XFObYkPMWIVSwTS7VOJ77iZyB0PtbiHC9CElnbgiN6AHovvB14nLUriKhGYTL1LwjJjP1mXn7p3HQA6BHP9wbKzfyzxrQs2ViTz/KA86OTMzY0ywmzre1Flvcmkp8Xt5+aCR5EXfriuGQwAX3TPuKnKkgs85r/6aHxmaevEQQVTUlzgn684r0UvIz66U9TKRoB27p8lmvRYdGHEfLC1FFaULpNJwWagSz09pw== 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=YyX5FcTVXPfGWxJkJKarYQzlIruAFxA0wxiAnVnrvZs=; b=YX5A0MITjDVUQq5lrgNAIaF4wMkZkJEseCmUsRqrSAMNtYBh+Cc7032Miw3sG5yGZZsv0iun2KdWfLJOEPquKYuHqMfEeoo34m4NmmXmPy1FecpacS0UB3QsgrIV5y0cGslVCTPrR2Dn+sUEXIT7bfZMJtGXjFNaBSd5wj0vRy5neGLkZjHuJ6OQT1woQHIhq/XbhmU8Ot1cTDF3fwK2itqraHnmDZcXy7iBcw/uOd15zyUBRp1ki3IJ4CLxeuTMAnm4STIBp1kgOeyvsgQU7np3X876wuB/uYYD20NCpml2sLf/RRMyglROKyt67uN7dIYyMHeLF0BMsdYcxI4kCA== 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=YyX5FcTVXPfGWxJkJKarYQzlIruAFxA0wxiAnVnrvZs=; b=MIQsLMieV7BWYdX5bPs+HVxKTP99HXTJa0fAh7eovL8cws8mJYRzJwLfoxSMA2gUbZn93nl9KSnn+q+lWhR4Vo6o0ftsrb38CAHoKpY0H5FvHHdJC/tsPnhbaVPIzo1w4Nds2fJCwExk5DxYX2yUD+lOwHXPgUrQ++w3vHhS3Jk= Received: from DM5PR10MB1466.namprd10.prod.outlook.com (2603:10b6:3:b::7) by PH0PR10MB4536.namprd10.prod.outlook.com (2603:10b6:510:40::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6064.25; Thu, 2 Feb 2023 23:25:23 +0000 Received: from DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::c888:aca:1eb9:ca4f]) by DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::c888:aca:1eb9:ca4f%5]) with mapi id 15.20.6086.008; Thu, 2 Feb 2023 23:25:23 +0000 From: Mike Christie To: hch@infradead.org, stefanha@redhat.com, jasowang@redhat.com, mst@redhat.com, sgarzare@redhat.com, virtualization@lists.linux-foundation.org, brauner@kernel.org, ebiederm@xmission.com, torvalds@linux-foundation.org, konrad.wilk@oracle.com, linux-kernel@vger.kernel.org Cc: Mike Christie , Christoph Hellwig Subject: [PATCH v11 1/8] fork: Make IO worker options flag based Date: Thu, 2 Feb 2023 17:25:10 -0600 Message-Id: <20230202232517.8695-2-michael.christie@oracle.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230202232517.8695-1-michael.christie@oracle.com> References: <20230202232517.8695-1-michael.christie@oracle.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: CH0PR03CA0299.namprd03.prod.outlook.com (2603:10b6:610:e6::34) To DM5PR10MB1466.namprd10.prod.outlook.com (2603:10b6:3:b::7) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM5PR10MB1466:EE_|PH0PR10MB4536:EE_ X-MS-Office365-Filtering-Correlation-Id: d2cee94e-9fa3-4de6-2709-08db0574c1c2 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:DM5PR10MB1466.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230025)(366004)(39860400002)(396003)(376002)(136003)(346002)(451199018)(316002)(83380400001)(6666004)(54906003)(2616005)(36756003)(2906002)(66476007)(38100700002)(186003)(6506007)(66946007)(66556008)(26005)(1076003)(6512007)(6486002)(8676002)(478600001)(7416002)(41300700001)(86362001)(4326008)(921005)(5660300002)(8936002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?jdNKRCFx1rup9EQvUJaM+q5T4AqSLdqROhfo1HQaRWbaZCy7g+4znfBTXTUY?= =?us-ascii?Q?2HGNFKU4g5k67+n+v677mrWjhr+VdG8zPDm1VfW2Kiq8J39EUMLZDk05oEP7?= =?us-ascii?Q?N3cQknBps3m+pCAVHQMyQdSi+hoWmQxQcgPtJ0Kq5mXj/NDE/f8G9uWpKnA9?= =?us-ascii?Q?YkuVHsm9FVjEHJMYEnWmknDkkyg2EK8RJhVm1TfULBtGurELXPDcQa7DX+A7?= =?us-ascii?Q?+dEYFnqmTu/iB41KeMSDZyK109HO/eyGkrRjRmRhhj1uyr7jymJ1xS9cSW1p?= =?us-ascii?Q?c+J8sC4S98/Od0/BUtrT35LsBfbVtkthuIjqCyRCPLboNNIorRCChLIARNpA?= =?us-ascii?Q?jhkHBQk7NAQF/a5rTDM7iV6/7iQ2w5A30oTNknnEoFbhsm+cFSEPj3sozM0A?= =?us-ascii?Q?NXSCTCol8p5dKNaWJcQTiAkl+M2ayA4HhyMTM44ZkOnSNYbUWNmnOhawbQWo?= =?us-ascii?Q?b7O7Y8AVt2CPmC0K1hoa/qB5q0kDun44PBsECeYDlvty9A+PKsGTLENX7W1f?= =?us-ascii?Q?G5Elc9lcPggHheRSc1Yf4mnPUdeFJZOU/GENUq2NE6MLRav6ygbKKI6WyzU0?= =?us-ascii?Q?xQ0DyigY3tTSL1I96BgchJ4mu111S4vm2sYB+yYBLMkXXrx5yqmYBHivvlyR?= =?us-ascii?Q?1HhGknQVn+9Z29p0wvDeiYiLbGQeD9ZbBMlyBlQQF5TtlVlaSN8cLUTYe2+a?= =?us-ascii?Q?WrwSuedFxCvCJLS/kcsDFkLdSPecCjkNFLlVPgUv+SXDGwYfSs98SkTHHEvH?= =?us-ascii?Q?vNVCLSLY5XONc6xqeXhwhydKxNAXKnGHsuhz9rXwJLSEgVk3sZ2rVf+shetP?= =?us-ascii?Q?k6ogpO/lgfVJNQzdjouo0b/GPMbVu1sAcWACr1wvV04vabuRfxmGPNwQPOng?= =?us-ascii?Q?wBVgFOZ+httZiul9lwa+yH2UE/69USKp904tYBDgvpf7d6ZmVrrmJBFi14wW?= =?us-ascii?Q?uMe3aoah0JDcnplecoM/j5k5q25Hd/fGBdvXNrHAIQjUTMOpC5KpM9bh1uHe?= =?us-ascii?Q?rlz+12W3eGsB8c7fHH9EzQ+FRT2XYiuUvVVJ2GyigQpc08ZxmG5lzSj6bfYB?= =?us-ascii?Q?8wpUkm2Uw8d210BePXNZl8MBw/w0l72BhSU41PRl5vnVAuCzZ5KorjL6/knt?= =?us-ascii?Q?bV/RK4hIRsRwHHxQoYzWjz2rIJ/uOIEKsW/c8zHYwvZX12TXRy9bqe9ArOHc?= =?us-ascii?Q?BIqsYIbKfiNXnjjNTVOCog4zbwoQaAVWA/wsM2r8PU44EUASU/JLpmiYMtkS?= =?us-ascii?Q?ZD0d89+Wmpb2PnJff0EcvBWuZqbQyG1PSy+s1bRiR2g1heiLWJNSHPYpciPa?= =?us-ascii?Q?2P/Om4ForOfDXGP7iHO/pyjHAQSEWM0wkMZkbEHfpOwqCbVDCxNNpmGMNxoN?= =?us-ascii?Q?0kiWXV+ndyZKT52VM0JT3SE5W+aNuR256MIvQk8TSLJYdi7rnqiks5l/tAiY?= =?us-ascii?Q?tP3qsIrWvUCcLJr6UM1KNORTgJkHL4Nf7hymCjgIn+E6iivjkXBU5jv7lq7H?= =?us-ascii?Q?Qm0W6/eyRer/sVkpQ48xzN7J7mOiENWSS/safd50InPydHIR25Rnq8N4zqlL?= =?us-ascii?Q?9w68ii4Kdk9EvA7g2XgBr2JfL7yEQP3N42tDcI3EUcHW+wQr6+w0C1h2vZWb?= =?us-ascii?Q?KQ=3D=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: =?us-ascii?Q?Ql7FI7Gu+mbk3Q9tBS7QeyF71ywcwIze9LR2RBOgIvs0e/j5AZ6thcaxtGcl?= =?us-ascii?Q?5j4KW+jz/2H2yAR/DshTaojmZdORqjtI5YvDrnDOmKrzLvYWdPM90VI7mQxz?= =?us-ascii?Q?9Jk4YcWsy0sIljBMoyVJF7xJqtGTMCX1w+pgBWz4ykRM5duBHVIgcxh38ALN?= =?us-ascii?Q?aH24SiQuLiUQ6QLP9L5+aE4acdLHrelYs4GhSZ34//UybOmt6OKuG4hYRxsK?= =?us-ascii?Q?Ls959sWK8Rv8OprDFgqxyQ8Ma2Vov4vFsI/qfTfjNSdcrhjW478ilHZRTMR9?= =?us-ascii?Q?W6fJkDQm7uWVdGX7j6yXO5NOyEXV5lwyHC+0M9sXt/evfzMY534ec1VTa+ru?= =?us-ascii?Q?Q3xjaJmDEsfdvkgfbLLd+0b0bOVKTuSeV0IXRC3lCD0FTp1Va64jYgYaBg5b?= =?us-ascii?Q?C3R73yFnhDSjP3K6oFTtj8zgDQ987Q7RcXojMr1VkEcx2+vRYLRaI1r75Ftb?= =?us-ascii?Q?iGAj2FG+Pml6H7MErRtvXonyf7HRhlI3+ipBZKOMFt+ZoKn1VaEOuy/HnRV/?= =?us-ascii?Q?lnVTI21Bm/U1lVPLaSbzguNsjS72uEi0GwnzYBecHeOT4cxwWCTcTLc9wTq4?= =?us-ascii?Q?i9FImaEsNvwLjjA6pxgQVVHPkahIMP5+YyXqURcQFyMr1XPS19DhET6Q1fsU?= =?us-ascii?Q?KNNG3A9LAiprDwF8GosOv3UJ7FEyOHfc5F952Y4p3ztRoCQ4GsPlOnMMnCG0?= =?us-ascii?Q?nTU8+w+oLdkEKWpRccLdEBVyV5L9Lv1TE2I3ybACzG06dpjDwYaTds1AiEmS?= =?us-ascii?Q?9hJVRfjtv7usnWD0kcZ7kL1clb6DtV+Y2d8CGq3NkQhGVKY8v2Xw7/t5G5nl?= =?us-ascii?Q?Mvx1J2aaCJ//h1pp/8qyz9u1eEX8IKj0BKOqpFRQdBQMwsQH6VbqzvGaJtHN?= =?us-ascii?Q?uZnc/CEH4NsI52kKm6yi0Y5MQV3weDCJttyqlSTPraMO88GkfuNS4WdvH9xb?= =?us-ascii?Q?38Pru5CaA7upLbiONtZu3Mh2v6AE0+QZgvdARxGDZZXZDRDQe3EDT1mZa9Un?= =?us-ascii?Q?RaqOO3UvIAmr6OSrhZ7Lp6TDW169wpdUaS3FFMjP0ewI3So=3D?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: d2cee94e-9fa3-4de6-2709-08db0574c1c2 X-MS-Exchange-CrossTenant-AuthSource: DM5PR10MB1466.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Feb 2023 23:25:22.9691 (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: 43zstFgS75PyIT6ypGvOyGZ4g84uddxr8GldfrbRkLl0xEU48n38ZvBlyx2AoHJv/QqFyB3gGe1twBJ81i7lbCOF5jiJPa9IWQWcBjO3gBw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR10MB4536 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-02_14,2023-02-02_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=797 adultscore=0 suspectscore=0 mlxscore=0 spamscore=0 phishscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302020207 X-Proofpoint-GUID: CufellArNNF9kTfh6LlNPXgt_F5t2lsq X-Proofpoint-ORIG-GUID: CufellArNNF9kTfh6LlNPXgt_F5t2lsq Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset adds a couple new options to kernel_clone_args for the vhost layer which is going to work like PF_IO_WORKER but will differ enough that we will need to add several fields to kernel_clone_args. This patch moves us to a flags based approach for these types of users. Signed-off-by: Mike Christie Suggested-by: Christian Brauner Acked-by: Christian Brauner Reviewed-by: Christoph Hellwig Acked-by: Michael S. Tsirkin --- include/linux/sched/task.h | 4 +++- kernel/fork.c | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 357e0068497c..a759ce5aa603 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -18,8 +18,11 @@ struct css_set; /* All the bits taken by the old clone syscall. */ #define CLONE_LEGACY_FLAGS 0xffffffffULL +#define USER_WORKER_IO BIT(0) + struct kernel_clone_args { u64 flags; + u32 worker_flags; int __user *pidfd; int __user *child_tid; int __user *parent_tid; @@ -31,7 +34,6 @@ struct kernel_clone_args { /* Number of elements in *set_tid */ size_t set_tid_size; int cgroup; - int io_thread; int kthread; int idle; int (*fn)(void *); diff --git a/kernel/fork.c b/kernel/fork.c index 9f7fe3541897..b030aefba26c 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2100,7 +2100,7 @@ static __latent_entropy struct task_struct *copy_process( p->flags &= ~PF_KTHREAD; if (args->kthread) p->flags |= PF_KTHREAD; - if (args->io_thread) { + if (args->worker_flags & USER_WORKER_IO) { /* * Mark us an IO worker, and block any signal that isn't * fatal or STOP @@ -2623,7 +2623,7 @@ struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node) .exit_signal = (lower_32_bits(flags) & CSIGNAL), .fn = fn, .fn_arg = arg, - .io_thread = 1, + .worker_flags = USER_WORKER_IO, }; return copy_process(NULL, 0, node, &args); -- 2.25.1 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 smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 45D81C636D3 for ; Thu, 2 Feb 2023 23:25:41 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id BAE5341D5E; Thu, 2 Feb 2023 23:25:40 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org BAE5341D5E Authentication-Results: smtp4.osuosl.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=oracle.com header.i=@oracle.com header.a=rsa-sha256 header.s=corp-2022-7-12 header.b=fJThlsKw; dkim=fail reason="signature verification failed" (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-oracle-onmicrosoft-com header.b=MIQsLMie X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JWY33dfbe7hn; Thu, 2 Feb 2023 23:25:39 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTPS id 31B9641D55; Thu, 2 Feb 2023 23:25:38 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 31B9641D55 Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 0AFBAC0033; Thu, 2 Feb 2023 23:25:38 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2AD22C002B for ; Thu, 2 Feb 2023 23:25:37 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id E46A182086 for ; Thu, 2 Feb 2023 23:25:36 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org E46A182086 Authentication-Results: smtp1.osuosl.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.a=rsa-sha256 header.s=corp-2022-7-12 header.b=fJThlsKw; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-oracle-onmicrosoft-com header.b=MIQsLMie X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Mqz2KskngRdm for ; Thu, 2 Feb 2023 23:25:36 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org EC64282082 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by smtp1.osuosl.org (Postfix) with ESMTPS id EC64282082 for ; Thu, 2 Feb 2023 23:25:35 +0000 (UTC) Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 312IDmlo027106; Thu, 2 Feb 2023 23:25:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-transfer-encoding : content-type : mime-version; s=corp-2022-7-12; bh=YyX5FcTVXPfGWxJkJKarYQzlIruAFxA0wxiAnVnrvZs=; b=fJThlsKwsJDzFC+Dd1WBsIqmS7CN7IPF82fH/LFNfR5fMM+epyV1RJhBItoi1qJRWGXi TsoerqbZmceR0gpCBRhrDogKAr74be69kj76xTAXCZHEErPsGR/KgPwCcrO793dV1KCf ++dnJdZv7m8fAcVD45wDTktttjPHsN5LQJmOCOyoHMBmZrO4jOGdqqCxcq0BH/OSXqLc kZaTXc8pJMsP5dxlM1B3G3WRHfUJxy1m8zq3u7KVvqRa4z3WdTb/Gt2TDuANfWEUHwx5 DkNgZnAQlKm8h4c5H2pEQAhuFd4ihH//2qCy/GJEy+X6kUAKjczct9fUw1rYVD0Tdr+O fw== Received: from phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta02.appoci.oracle.com [147.154.114.232]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3nfpywm6cs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 02 Feb 2023 23:25:25 +0000 Received: from pps.filterd (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.5/8.17.1.5) with ESMTP id 312MlwMg005929; Thu, 2 Feb 2023 23:25:24 GMT Received: from nam11-dm6-obe.outbound.protection.outlook.com (mail-dm6nam11lp2176.outbound.protection.outlook.com [104.47.57.176]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3nct59rb4b-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 02 Feb 2023 23:25:24 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=QZcu7HhhMYzVZ5BJ+CiEGyAE7M4fhTqZ60BOsD3oZSB8f9zbB3wKFtQzPk/f0aFCJzpj1ZSrGSnd9TZVEgRuOjSClFhP6brwGOkfUIZSw4TOLZrN4XFObYkPMWIVSwTS7VOJ77iZyB0PtbiHC9CElnbgiN6AHovvB14nLUriKhGYTL1LwjJjP1mXn7p3HQA6BHP9wbKzfyzxrQs2ViTz/KA86OTMzY0ywmzre1Flvcmkp8Xt5+aCR5EXfriuGQwAX3TPuKnKkgs85r/6aHxmaevEQQVTUlzgn684r0UvIz66U9TKRoB27p8lmvRYdGHEfLC1FFaULpNJwWagSz09pw== 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=YyX5FcTVXPfGWxJkJKarYQzlIruAFxA0wxiAnVnrvZs=; b=YX5A0MITjDVUQq5lrgNAIaF4wMkZkJEseCmUsRqrSAMNtYBh+Cc7032Miw3sG5yGZZsv0iun2KdWfLJOEPquKYuHqMfEeoo34m4NmmXmPy1FecpacS0UB3QsgrIV5y0cGslVCTPrR2Dn+sUEXIT7bfZMJtGXjFNaBSd5wj0vRy5neGLkZjHuJ6OQT1woQHIhq/XbhmU8Ot1cTDF3fwK2itqraHnmDZcXy7iBcw/uOd15zyUBRp1ki3IJ4CLxeuTMAnm4STIBp1kgOeyvsgQU7np3X876wuB/uYYD20NCpml2sLf/RRMyglROKyt67uN7dIYyMHeLF0BMsdYcxI4kCA== 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=YyX5FcTVXPfGWxJkJKarYQzlIruAFxA0wxiAnVnrvZs=; b=MIQsLMieV7BWYdX5bPs+HVxKTP99HXTJa0fAh7eovL8cws8mJYRzJwLfoxSMA2gUbZn93nl9KSnn+q+lWhR4Vo6o0ftsrb38CAHoKpY0H5FvHHdJC/tsPnhbaVPIzo1w4Nds2fJCwExk5DxYX2yUD+lOwHXPgUrQ++w3vHhS3Jk= Received: from DM5PR10MB1466.namprd10.prod.outlook.com (2603:10b6:3:b::7) by PH0PR10MB4536.namprd10.prod.outlook.com (2603:10b6:510:40::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6064.25; Thu, 2 Feb 2023 23:25:23 +0000 Received: from DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::c888:aca:1eb9:ca4f]) by DM5PR10MB1466.namprd10.prod.outlook.com ([fe80::c888:aca:1eb9:ca4f%5]) with mapi id 15.20.6086.008; Thu, 2 Feb 2023 23:25:23 +0000 From: Mike Christie To: hch@infradead.org, stefanha@redhat.com, jasowang@redhat.com, mst@redhat.com, sgarzare@redhat.com, virtualization@lists.linux-foundation.org, brauner@kernel.org, ebiederm@xmission.com, torvalds@linux-foundation.org, konrad.wilk@oracle.com, linux-kernel@vger.kernel.org Subject: [PATCH v11 1/8] fork: Make IO worker options flag based Date: Thu, 2 Feb 2023 17:25:10 -0600 Message-Id: <20230202232517.8695-2-michael.christie@oracle.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230202232517.8695-1-michael.christie@oracle.com> References: <20230202232517.8695-1-michael.christie@oracle.com> X-ClientProxiedBy: CH0PR03CA0299.namprd03.prod.outlook.com (2603:10b6:610:e6::34) To DM5PR10MB1466.namprd10.prod.outlook.com (2603:10b6:3:b::7) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM5PR10MB1466:EE_|PH0PR10MB4536:EE_ X-MS-Office365-Filtering-Correlation-Id: d2cee94e-9fa3-4de6-2709-08db0574c1c2 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:DM5PR10MB1466.namprd10.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230025)(366004)(39860400002)(396003)(376002)(136003)(346002)(451199018)(316002)(83380400001)(6666004)(54906003)(2616005)(36756003)(2906002)(66476007)(38100700002)(186003)(6506007)(66946007)(66556008)(26005)(1076003)(6512007)(6486002)(8676002)(478600001)(7416002)(41300700001)(86362001)(4326008)(921005)(5660300002)(8936002); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?jdNKRCFx1rup9EQvUJaM+q5T4AqSLdqROhfo1HQaRWbaZCy7g+4znfBTXTUY?= =?us-ascii?Q?2HGNFKU4g5k67+n+v677mrWjhr+VdG8zPDm1VfW2Kiq8J39EUMLZDk05oEP7?= =?us-ascii?Q?N3cQknBps3m+pCAVHQMyQdSi+hoWmQxQcgPtJ0Kq5mXj/NDE/f8G9uWpKnA9?= =?us-ascii?Q?YkuVHsm9FVjEHJMYEnWmknDkkyg2EK8RJhVm1TfULBtGurELXPDcQa7DX+A7?= =?us-ascii?Q?+dEYFnqmTu/iB41KeMSDZyK109HO/eyGkrRjRmRhhj1uyr7jymJ1xS9cSW1p?= =?us-ascii?Q?c+J8sC4S98/Od0/BUtrT35LsBfbVtkthuIjqCyRCPLboNNIorRCChLIARNpA?= =?us-ascii?Q?jhkHBQk7NAQF/a5rTDM7iV6/7iQ2w5A30oTNknnEoFbhsm+cFSEPj3sozM0A?= =?us-ascii?Q?NXSCTCol8p5dKNaWJcQTiAkl+M2ayA4HhyMTM44ZkOnSNYbUWNmnOhawbQWo?= =?us-ascii?Q?b7O7Y8AVt2CPmC0K1hoa/qB5q0kDun44PBsECeYDlvty9A+PKsGTLENX7W1f?= =?us-ascii?Q?G5Elc9lcPggHheRSc1Yf4mnPUdeFJZOU/GENUq2NE6MLRav6ygbKKI6WyzU0?= =?us-ascii?Q?xQ0DyigY3tTSL1I96BgchJ4mu111S4vm2sYB+yYBLMkXXrx5yqmYBHivvlyR?= =?us-ascii?Q?1HhGknQVn+9Z29p0wvDeiYiLbGQeD9ZbBMlyBlQQF5TtlVlaSN8cLUTYe2+a?= =?us-ascii?Q?WrwSuedFxCvCJLS/kcsDFkLdSPecCjkNFLlVPgUv+SXDGwYfSs98SkTHHEvH?= =?us-ascii?Q?vNVCLSLY5XONc6xqeXhwhydKxNAXKnGHsuhz9rXwJLSEgVk3sZ2rVf+shetP?= =?us-ascii?Q?k6ogpO/lgfVJNQzdjouo0b/GPMbVu1sAcWACr1wvV04vabuRfxmGPNwQPOng?= =?us-ascii?Q?wBVgFOZ+httZiul9lwa+yH2UE/69USKp904tYBDgvpf7d6ZmVrrmJBFi14wW?= =?us-ascii?Q?uMe3aoah0JDcnplecoM/j5k5q25Hd/fGBdvXNrHAIQjUTMOpC5KpM9bh1uHe?= =?us-ascii?Q?rlz+12W3eGsB8c7fHH9EzQ+FRT2XYiuUvVVJ2GyigQpc08ZxmG5lzSj6bfYB?= =?us-ascii?Q?8wpUkm2Uw8d210BePXNZl8MBw/w0l72BhSU41PRl5vnVAuCzZ5KorjL6/knt?= =?us-ascii?Q?bV/RK4hIRsRwHHxQoYzWjz2rIJ/uOIEKsW/c8zHYwvZX12TXRy9bqe9ArOHc?= =?us-ascii?Q?BIqsYIbKfiNXnjjNTVOCog4zbwoQaAVWA/wsM2r8PU44EUASU/JLpmiYMtkS?= =?us-ascii?Q?ZD0d89+Wmpb2PnJff0EcvBWuZqbQyG1PSy+s1bRiR2g1heiLWJNSHPYpciPa?= =?us-ascii?Q?2P/Om4ForOfDXGP7iHO/pyjHAQSEWM0wkMZkbEHfpOwqCbVDCxNNpmGMNxoN?= =?us-ascii?Q?0kiWXV+ndyZKT52VM0JT3SE5W+aNuR256MIvQk8TSLJYdi7rnqiks5l/tAiY?= =?us-ascii?Q?tP3qsIrWvUCcLJr6UM1KNORTgJkHL4Nf7hymCjgIn+E6iivjkXBU5jv7lq7H?= =?us-ascii?Q?Qm0W6/eyRer/sVkpQ48xzN7J7mOiENWSS/safd50InPydHIR25Rnq8N4zqlL?= =?us-ascii?Q?9w68ii4Kdk9EvA7g2XgBr2JfL7yEQP3N42tDcI3EUcHW+wQr6+w0C1h2vZWb?= =?us-ascii?Q?KQ=3D=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: =?us-ascii?Q?Ql7FI7Gu+mbk3Q9tBS7QeyF71ywcwIze9LR2RBOgIvs0e/j5AZ6thcaxtGcl?= =?us-ascii?Q?5j4KW+jz/2H2yAR/DshTaojmZdORqjtI5YvDrnDOmKrzLvYWdPM90VI7mQxz?= =?us-ascii?Q?9Jk4YcWsy0sIljBMoyVJF7xJqtGTMCX1w+pgBWz4ykRM5duBHVIgcxh38ALN?= =?us-ascii?Q?aH24SiQuLiUQ6QLP9L5+aE4acdLHrelYs4GhSZ34//UybOmt6OKuG4hYRxsK?= =?us-ascii?Q?Ls959sWK8Rv8OprDFgqxyQ8Ma2Vov4vFsI/qfTfjNSdcrhjW478ilHZRTMR9?= =?us-ascii?Q?W6fJkDQm7uWVdGX7j6yXO5NOyEXV5lwyHC+0M9sXt/evfzMY534ec1VTa+ru?= =?us-ascii?Q?Q3xjaJmDEsfdvkgfbLLd+0b0bOVKTuSeV0IXRC3lCD0FTp1Va64jYgYaBg5b?= =?us-ascii?Q?C3R73yFnhDSjP3K6oFTtj8zgDQ987Q7RcXojMr1VkEcx2+vRYLRaI1r75Ftb?= =?us-ascii?Q?iGAj2FG+Pml6H7MErRtvXonyf7HRhlI3+ipBZKOMFt+ZoKn1VaEOuy/HnRV/?= =?us-ascii?Q?lnVTI21Bm/U1lVPLaSbzguNsjS72uEi0GwnzYBecHeOT4cxwWCTcTLc9wTq4?= =?us-ascii?Q?i9FImaEsNvwLjjA6pxgQVVHPkahIMP5+YyXqURcQFyMr1XPS19DhET6Q1fsU?= =?us-ascii?Q?KNNG3A9LAiprDwF8GosOv3UJ7FEyOHfc5F952Y4p3ztRoCQ4GsPlOnMMnCG0?= =?us-ascii?Q?nTU8+w+oLdkEKWpRccLdEBVyV5L9Lv1TE2I3ybACzG06dpjDwYaTds1AiEmS?= =?us-ascii?Q?9hJVRfjtv7usnWD0kcZ7kL1clb6DtV+Y2d8CGq3NkQhGVKY8v2Xw7/t5G5nl?= =?us-ascii?Q?Mvx1J2aaCJ//h1pp/8qyz9u1eEX8IKj0BKOqpFRQdBQMwsQH6VbqzvGaJtHN?= =?us-ascii?Q?uZnc/CEH4NsI52kKm6yi0Y5MQV3weDCJttyqlSTPraMO88GkfuNS4WdvH9xb?= =?us-ascii?Q?38Pru5CaA7upLbiONtZu3Mh2v6AE0+QZgvdARxGDZZXZDRDQe3EDT1mZa9Un?= =?us-ascii?Q?RaqOO3UvIAmr6OSrhZ7Lp6TDW169wpdUaS3FFMjP0ewI3So=3D?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: d2cee94e-9fa3-4de6-2709-08db0574c1c2 X-MS-Exchange-CrossTenant-AuthSource: DM5PR10MB1466.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Feb 2023 23:25:22.9691 (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: 43zstFgS75PyIT6ypGvOyGZ4g84uddxr8GldfrbRkLl0xEU48n38ZvBlyx2AoHJv/QqFyB3gGe1twBJ81i7lbCOF5jiJPa9IWQWcBjO3gBw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR10MB4536 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-02_14,2023-02-02_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=797 adultscore=0 suspectscore=0 mlxscore=0 spamscore=0 phishscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302020207 X-Proofpoint-GUID: CufellArNNF9kTfh6LlNPXgt_F5t2lsq X-Proofpoint-ORIG-GUID: CufellArNNF9kTfh6LlNPXgt_F5t2lsq Cc: Christoph Hellwig X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" This patchset adds a couple new options to kernel_clone_args for the vhost layer which is going to work like PF_IO_WORKER but will differ enough that we will need to add several fields to kernel_clone_args. This patch moves us to a flags based approach for these types of users. Signed-off-by: Mike Christie Suggested-by: Christian Brauner Acked-by: Christian Brauner Reviewed-by: Christoph Hellwig Acked-by: Michael S. Tsirkin --- include/linux/sched/task.h | 4 +++- kernel/fork.c | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 357e0068497c..a759ce5aa603 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -18,8 +18,11 @@ struct css_set; /* All the bits taken by the old clone syscall. */ #define CLONE_LEGACY_FLAGS 0xffffffffULL +#define USER_WORKER_IO BIT(0) + struct kernel_clone_args { u64 flags; + u32 worker_flags; int __user *pidfd; int __user *child_tid; int __user *parent_tid; @@ -31,7 +34,6 @@ struct kernel_clone_args { /* Number of elements in *set_tid */ size_t set_tid_size; int cgroup; - int io_thread; int kthread; int idle; int (*fn)(void *); diff --git a/kernel/fork.c b/kernel/fork.c index 9f7fe3541897..b030aefba26c 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2100,7 +2100,7 @@ static __latent_entropy struct task_struct *copy_process( p->flags &= ~PF_KTHREAD; if (args->kthread) p->flags |= PF_KTHREAD; - if (args->io_thread) { + if (args->worker_flags & USER_WORKER_IO) { /* * Mark us an IO worker, and block any signal that isn't * fatal or STOP @@ -2623,7 +2623,7 @@ struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node) .exit_signal = (lower_32_bits(flags) & CSIGNAL), .fn = fn, .fn_arg = arg, - .io_thread = 1, + .worker_flags = USER_WORKER_IO, }; return copy_process(NULL, 0, node, &args); -- 2.25.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization