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 X-Spam-Level: X-Spam-Status: No, score=-18.7 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,MSGID_FROM_MTA_HEADER,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 85E70C433ED for ; Wed, 19 May 2021 22:26:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5CF916124C for ; Wed, 19 May 2021 22:26:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229512AbhESW2M (ORCPT ); Wed, 19 May 2021 18:28:12 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:35192 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229455AbhESW2M (ORCPT ); Wed, 19 May 2021 18:28:12 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 14JMJ1n1009924; Wed, 19 May 2021 22:26:51 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : content-transfer-encoding : content-type : mime-version; s=corp-2020-01-29; bh=nXFov+pXFX1HSsMwJ06NSQ+zP4+38HN0TAghZblNNso=; b=sUuR5REV4hqR7EsaYTZ4lmA/w1lril8fOnw14EZnvby3+zMjA2nB+5luvl6H+3LrWUds Lbom7tx38+AWTtb5tRtoZ5URTGEr5Aj5KveJp0icoOCn5w+Hk9QplcjixPOpPQ1qAFwI blN9jcv2ly45EoNkNJM6kHC5QBlJpnI/Vo0nMETi+FhOkk8BIuDVSuPP2D5EpETjploD IuJgVi9MFrqf4XONqgRhnNgYQpUX6bByPJGABz0nIIocTVbvDJVETLkDMRPlZqaQyI2m FUdgAcnTfw2grj9CQL54bOtg/UROfhTvFNRiRTKPYw4NYcY+8SIE0hjclnepYPLtZL+G bg== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by aserp2120.oracle.com with ESMTP id 38j68mk0b2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 19 May 2021 22:26:51 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 14JMMiBX100357; Wed, 19 May 2021 22:26:50 GMT Received: from nam11-dm6-obe.outbound.protection.outlook.com (mail-dm6nam11lp2177.outbound.protection.outlook.com [104.47.57.177]) by userp3030.oracle.com with ESMTP id 38megkv6v3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 19 May 2021 22:26:50 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=DdFF0JYHOQ+n8407xqTX186gHJ6h/R2KZDoaDTWuwnHDGKuPq+mwrkuuKgtnR9730g7DrGyx6989hGc7ZaYqSPZf6h73NowtQ2BeZUFLtPe0uIBnRECpyaPfnEO3me0VPta1hCmptiC07fEPNUPoe3mTDrNsT9cGNhZQCKZTjXK7+HBujBf0Gusa8XG6tv0XZeIiXHFXAZAHXiUA+TgQcvkGJWyfZ3awRpzYyW9LuDrzlCoquQKks3uggEO+buWRhyO27dp/YfWj5wvUYLQBtXKQSferxa0KDajfxmLO2EFiVe5V6FaS3o/yxbWkvG+HazRu/Z/bhdcQdlE4WVR3KQ== 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=nXFov+pXFX1HSsMwJ06NSQ+zP4+38HN0TAghZblNNso=; b=lc5Rn2I6r45tMC8fF4XQPlEsrzkqk0fzqNtATELke3AJCHZcvRGJbkLMOH7arBQMNzAPPr3/TXiODuL2iCmPhoaqDaApprJ2EqBVckibIPh4F5XHDRbWEeoGTVeq+8WYsbMBJSQKcSsvA4GoKvtLeqXALVSzizfmp7m3JYYpAy1R2Fa0KBj0nlw6TUwok4AoPQns68tKTcMMK+3h1cStZyY/skWX5Lyq748R/th6hIYiNz+EbzqCGopSUXPmYhf7txRipysKYhcbQKw+B3eRN1fFjPigEzhyn6zF3ek81HkDTqQqJCkuqVWpciHQEBt/G50xnszso0Tfnp2TsCiiNQ== 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=nXFov+pXFX1HSsMwJ06NSQ+zP4+38HN0TAghZblNNso=; b=TRfw6yc+h8QCfLdc+pBBwxUCUaHKnJNXrXCyaFdzH390gGuJgfljMzCnIf5S6C15mjPuD3Sx1qRqPjmlfFwOIPvUOGaoJU0fJwmmI40fgrZNrUxEhvRmx4ELcmsbSNNeH3RZD/PmWg3S/t4FY+HsI0f1FvBtCs3ZIYHZazWQriI= Authentication-Results: wdc.com; dkim=none (message not signed) header.d=none;wdc.com; dmarc=none action=none header.from=oracle.com; Received: from BYAPR10MB3573.namprd10.prod.outlook.com (2603:10b6:a03:11e::32) by BYAPR10MB2584.namprd10.prod.outlook.com (2603:10b6:a02:b1::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4129.28; Wed, 19 May 2021 22:26:48 +0000 Received: from BYAPR10MB3573.namprd10.prod.outlook.com ([fe80::b09d:e36a:4258:d3d0]) by BYAPR10MB3573.namprd10.prod.outlook.com ([fe80::b09d:e36a:4258:d3d0%7]) with mapi id 15.20.4129.033; Wed, 19 May 2021 22:26:48 +0000 From: Mike Christie To: shinichiro.kawasaki@wdc.com, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Cc: Mike Christie Subject: [PATCH] scsi: target: iblock: Fix smp_processor_id BUG messages Date: Wed, 19 May 2021 17:26:40 -0500 Message-Id: <20210519222640.5153-1-michael.christie@oracle.com> X-Mailer: git-send-email 2.25.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [73.88.28.6] X-ClientProxiedBy: DM5PR06CA0047.namprd06.prod.outlook.com (2603:10b6:3:5d::33) To BYAPR10MB3573.namprd10.prod.outlook.com (2603:10b6:a03:11e::32) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (73.88.28.6) by DM5PR06CA0047.namprd06.prod.outlook.com (2603:10b6:3:5d::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4129.32 via Frontend Transport; Wed, 19 May 2021 22:26:47 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: fb6c477b-cf46-4d98-98f8-08d91b153117 X-MS-TrafficTypeDiagnostic: BYAPR10MB2584: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; 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:BYAPR10MB3573.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(136003)(376002)(396003)(346002)(366004)(39860400002)(6512007)(52116002)(38350700002)(6506007)(5660300002)(38100700002)(8936002)(316002)(8676002)(83380400001)(6486002)(2616005)(36756003)(478600001)(66476007)(66556008)(2906002)(1076003)(186003)(16526019)(107886003)(6666004)(86362001)(956004)(66946007)(4326008)(26005)(69590400013);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?lmO8CJmLfVD3ePQCZ1lGix3qNpjJrstKlKXfkoFH8amqjZSq/XC31EO7g0vD?= =?us-ascii?Q?oKJeYbaSl16pmi9+55ygituWjqCQS3LqxE0nhnQCbxhlPKnk1+H1f70H1xfJ?= =?us-ascii?Q?JdoY944rTEeP4tCWyTvEcFZ7VzJJgn9KuBE76Xz+FyfqpOfodNhgYo3Am0Yo?= =?us-ascii?Q?XwEjbBKlAeKKnpcdSTXjM9Y+HouixgmuDR7m9cKrnd4FPkOvy8IzxBt5WnMm?= =?us-ascii?Q?ZqnNZjVdgSwg6amCjHKVKZFHNLB2TX/J0xk+rm5a4r05VjduaAP1G5BOmlLB?= =?us-ascii?Q?zAXA0bPNLhD0VQxmB0kXKV/6MiNI0qlht7WZRcGFVpQaJjviJY5DZ9cHLQZY?= =?us-ascii?Q?4N09pcD/p8L69IQ0FLIO/ayjHdEpP8s/kolJPcclWtZ9RoatseOBMUWhHDKD?= =?us-ascii?Q?ZWQLM/Izovn6UBbl+QKJAvgQ/bkMAdU3NkDP56EGOaJlBWEYH/W4l+vNlaSq?= =?us-ascii?Q?1RKRaCGKnQ1lUWc+8afTRcfOkn+4hS1QTfSvDFnH1hQDeMAdsG4HoxmMxlEC?= =?us-ascii?Q?r3yj9RS/IOcun3PMjlIlhRg9QfhoQFxNzfuB2ph34lmzE79Z4Iu6rjnqSZu3?= =?us-ascii?Q?jg9G7Kd7ugylPHN5C8RHMzieLc8c1T7CQ3Fzav5GJ+Xyb8/bDTjjgGaLYZeM?= =?us-ascii?Q?kzUNQgp6xzlOKrAe22EpSTyNuEaiT4Y24m9D0QP46sz9W3bRPqxk+65mxI/r?= =?us-ascii?Q?R1oslEdMXsfNJeNJoWcvig/sKfWta0RM09OSh36rEszpd2Uvq4t/Yv9tP/MB?= =?us-ascii?Q?t+Z5lxOC3ioxGMmE775TTu0Uyg0JFsvxqXojfiNEGkfhsfg7eJNLoPUpux3K?= =?us-ascii?Q?cE50mp/F5MJvdk2/XLlKVVjK+snWGPgOqGbBLvTTo0Ieh4nelahfQtWrQQdN?= =?us-ascii?Q?dX0lm6OUmdL2BLLGZ+S5ymMXy1/Ixuw+UBlgiOGctbVfVOk1dYpeon4CO+rX?= =?us-ascii?Q?Ye5HUDrxw5eG8fXJR2SJBMP5rg9XMO5pVstlX4y2sVIdczi0cPwQLEVbd7RN?= =?us-ascii?Q?hwMl6r6POUzziMCFUNaBuGL/48dDudMRlQnRBlA6iLkpBJwwhcspuU3H4GjV?= =?us-ascii?Q?NWv95Ef4CKJG7A+DsEIikRbSjBHClY4EaVJLcdB/FYXAVzDQUcJl6ixyK6Wd?= =?us-ascii?Q?6EuTZmb03dxPsFKQp0mCfHecy01lgjGuN+gAC3havSkmiGSvBt3sAnSfM4d9?= =?us-ascii?Q?Ybg9rbs+SdgmXcCrpCvD2XqdEBpDJqnngCtszMqGS2dJvWmXbNNLPWFI+Z9E?= =?us-ascii?Q?dIdl9264qenS3h7uU+9r49/bxDivdNtqQ24Nq8ekMf0NH/12WUKBe9jw2t79?= =?us-ascii?Q?9psHD79oHu2DI8xPzmaecPZb?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: fb6c477b-cf46-4d98-98f8-08d91b153117 X-MS-Exchange-CrossTenant-AuthSource: BYAPR10MB3573.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 May 2021 22:26:48.6906 (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: N17uQclBLClk5Usfks9IOsdKm5Y5w0pD6tOezTVQjRU0HaejGI/WfAe95gmKKM3y7VzcqzoD3asFCHamtXuF/O4u9vNFzGTGc9ZI4e3MXY0= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR10MB2584 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9989 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 phishscore=0 adultscore=0 malwarescore=0 bulkscore=0 mlxscore=0 spamscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2105190136 X-Proofpoint-ORIG-GUID: e0jwmqwirYd4maHGlPhvA8lAYtulaKeh X-Proofpoint-GUID: e0jwmqwirYd4maHGlPhvA8lAYtulaKeh X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9989 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 mlxlogscore=999 priorityscore=1501 impostorscore=0 suspectscore=0 clxscore=1015 adultscore=0 bulkscore=0 phishscore=0 spamscore=0 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2105190136 Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org This has us use raw_smp_processor_id in iblock's plug_device callout. smp_processor_id is not needed here, because we are running from a per CPU work item that is also queued to run on a worker thread that is normally bound to a specific CPU. If the worker thread did end up switching CPUs then it's handled the same way we handle when the work got moved to a different CPU's worker thread, where we will just end up sending IO from the new CPU. Fixes: 415ccd9811da ("scsi: target: iblock: Add backend plug/unplug callouts") Signed-off-by: Mike Christie --- drivers/target/target_core_iblock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index d6fdd1c61f90..a526f9678c34 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -204,11 +204,11 @@ static struct se_dev_plug *iblock_plug_device(struct se_device *se_dev) struct iblock_dev_plug *ib_dev_plug; /* - * Each se_device has a per cpu work this can be run from. Wwe + * Each se_device has a per cpu work this can be run from. We * shouldn't have multiple threads on the same cpu calling this * at the same time. */ - ib_dev_plug = &ib_dev->ibd_plug[smp_processor_id()]; + ib_dev_plug = &ib_dev->ibd_plug[raw_smp_processor_id()]; if (test_and_set_bit(IBD_PLUGF_PLUGGED, &ib_dev_plug->flags)) return NULL; -- 2.25.1