From patchwork Fri Nov 11 19:23:53 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 9423589 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8E08D6047D for ; Fri, 11 Nov 2016 19:24:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7861829B31 for ; Fri, 11 Nov 2016 19:24:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6D33929B52; Fri, 11 Nov 2016 19:24:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 56EA129B31 for ; Fri, 11 Nov 2016 19:24:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936594AbcKKTYE (ORCPT ); Fri, 11 Nov 2016 14:24:04 -0500 Received: from mail-cys01nam02on0041.outbound.protection.outlook.com ([104.47.37.41]:11128 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932697AbcKKTYB (ORCPT ); Fri, 11 Nov 2016 14:24:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sandiskcorp.onmicrosoft.com; s=selector1-sandisk-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=sanwnGq1947oAX0TUCWy1a4OxbKJZfwOK6t26V48Ops=; b=lccWDzB29kEAlxZD42+7WsXtb4ikdk0/6rxISkjQqRjLvyTg+eOIxsTRBXSIkm3Mtx6Rsiwwtqn2RDexm0J1eK+yOwUa3xDVo1LZezR0T17qo49Vi5j1Q4Bb87qg3bD4XT4rHlCOo+9sxujYlM8CI/r0ubNsAoxv23699H0byQc= Received: from BLUPR02CA038.namprd02.prod.outlook.com (10.160.23.156) by MWHPR02MB2829.namprd02.prod.outlook.com (10.175.50.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.721.10; Fri, 11 Nov 2016 19:23:58 +0000 Received: from BN1AFFO11FD032.protection.gbl (2a01:111:f400:7c10::136) by BLUPR02CA038.outlook.office365.com (2a01:111:e400:8ad::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.707.6 via Frontend Transport; Fri, 11 Nov 2016 19:23:57 +0000 Authentication-Results: spf=pass (sender IP is 63.163.107.225) smtp.mailfrom=sandisk.com; intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=bestguesspass action=none header.from=sandisk.com; Received-SPF: Pass (protection.outlook.com: domain of sandisk.com designates 63.163.107.225 as permitted sender) receiver=protection.outlook.com; client-ip=63.163.107.225; helo=milsmgep14.sandisk.com; Received: from milsmgep14.sandisk.com (63.163.107.225) by BN1AFFO11FD032.mail.protection.outlook.com (10.58.52.186) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.707.3 via Frontend Transport; Fri, 11 Nov 2016 19:23:57 +0000 X-IncomingTopHeaderMarker: OriginalChecksum:; UpperCasedChecksum:; SizeAsReceived:2953; Count:19 Received: from MILHUBIP03.sdcorp.global.sandisk.com (Unknown_Domain [10.201.67.162]) (using TLS with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by (Symantec Messaging Gateway) with SMTP id 5E.53.03811.72916285; Fri, 11 Nov 2016 11:16:55 -0800 (PST) Received: from milsmgip12.sandisk.com (10.177.9.6) by MILHUBIP03.sdcorp.global.sandisk.com (10.177.9.96) with Microsoft SMTP Server id 14.3.319.2; Fri, 11 Nov 2016 11:23:55 -0800 X-AuditID: 0ac94371-a9ee698000000ee3-51-58261927daf9 Received: from exp-402881.sandisk.com ( [10.177.9.6]) by (Symantec Messaging Gateway) with SMTP id 31.52.03661.9CA16285; Fri, 11 Nov 2016 11:23:54 -0800 (PST) Subject: Re: Regression: nvme timeouts and oopses To: Jens Axboe References: CC: "linux-block@vger.kernel.org" , "Christoph Hellwig" , Keith Busch From: Bart Van Assche Message-ID: <50342d6b-e185-d125-c04c-e72d6fc45ccd@sandisk.com> Date: Fri, 11 Nov 2016 11:23:53 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrBLMWRmVeSWpSXmKPExsXCddJ5ka66pFqEwdtvBhar7/azWaxcfZTJ 4t7RL0wWe29pO7B4LN7zksnj8tlSj903G9g8Pm+SC2CJ4rJJSc3JLEst0rdL4MpY2veNseA+ d0XbnfmMDYyHObsYOTgkBEwkzrXadDFycQgJLGWSeHfoODOEs41RYmXbUrYuRk6wotaOT6wg tpDAYkaJ6ZM4QGxhAUOJOe9AGjg5RAQUJHp+r2QDGSokYCNx74Q4yBxmgTZGiflPr4L1sgkY SXx7P5MFxOYVsJNY//EEI4jNIqAqcWHCZrAaUYEIiU1f50DVCEqcnPkEzOYUsJV4ubuPFWQ+ s4CmxPpd+iBhZgF5ie1v5zBDnLmKVaLrhSXEmeoSJ5fMZ5rAKDwLyaRZCN2zkHQvYGRexSiW m5lTnJueWmBoolecmJeSWZytl5yfu4kREv6FOxhf3/Y+xCjAwajEw8vwWjVCiDWxrLgy9xCj BAezkgjvXmD0CPGmJFZWpRblxxeV5qQWH2KU5mBREue9GP0xTEggPbEkNTs1tSC1CCbLxMEp 1cDYsuibIW98a4DQTzk79o6di61cq1J82abMW9l94Yr0jeP2RyVUPvScm2S/efXplkuJ+5tu q3rxK8o9Wrpya7+7e6Xe/Bfhhm4fHQ3aXmpoTnxy3pgxouZ0nfHvtrwFR2fP9zYs+71qzcK5 nSLvN65fmMbzvrThWnnZVB43R5XsVJu8uMqLV82VWIozEg21mIuKEwE0fCNFewIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrEJMWRmVeSWpSXmKPExsXCtZGTTfeUlFqEwaPL2har7/azWaxcfZTJ 4t7RL0wWe29pO7B4LN7zksnj8tlSj903G9g8Pm+SC2CJ4rJJSc3JLEst0rdL4MpY2veNseA+ d0XbnfmMDYyHObsYOTkkBEwkWjs+sXYxcnEICSxklLj/8zATSEJYwFBizrvjzCC2iICCRM/v lWxdjBxARTYS906Ig9QzC7QxSqxpOcwOUsMmYCTx7f1MFhCbV8BOYv3HE4wgNouAqsSFCZtZ QWxRgQiJTV/nQNUISpyc+QTM5hSwlXi5uw+shllAXeLPvEvMELa8xPa3c5gnMPLNQtIyC0nZ LCRlCxiZVzGK5WbmFOemZxYYGukVJ+alZBZn6yXn525ihIRi1A7G6xPNDzEycXBKNTCuXJ8q fnrbmegXifevMN8KfHR7treTZsXdkFmrpm6bXjr7l5yHdcnJj8vEHmn4FtycMoVjzVoL0xzW FqZXjyX5fc44TLQ/1VQq2sDqv+7szemvVUu/iV7Qt2yY4czPZ/3Kji8tSKLSQudbZtfn55+V H+7KKtWyZ1yq3d3lcjngVNrD9uwdLHVKLMUZiYZazEXFiQDNG4Ai9QEAAA== X-IncomingHeaderCount: 19 X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:63.163.107.225; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(6009001)(7916002)(2980300002)(438002)(3190300001)(189002)(24454002)(377454003)(199003)(8676002)(92566002)(586003)(97736004)(2950100002)(6916009)(110136003)(4001350100001)(36756003)(189998001)(87936001)(83506001)(33646002)(626004)(23676002)(7846002)(4326007)(2906002)(305945005)(356003)(86362001)(50466002)(31696002)(50986999)(106466001)(47776003)(64126003)(65806001)(65956001)(77096005)(69596002)(76176999)(68736007)(53416004)(2270400002)(230700001)(65826007)(81166006)(8936002)(229853002)(5660300001)(81156014)(31686004)(54356999); DIR:OUT; SFP:1101; SCL:1; SRVR:MWHPR02MB2829; H:milsmgep14.sandisk.com; FPR:; SPF:Pass; PTR:InfoDomainNonexistent; MX:1; A:1; LANG:en; X-Microsoft-Exchange-Diagnostics: 1; BN1AFFO11FD032; 1: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 X-Microsoft-Exchange-Diagnostics: 1; MWHPR02MB2829; 2:UYWFx1GbrWnv2MlDSSPibMSbgsYiH8AGfjD7giOqt/IuusffEx/G0cBuEVNYX4l2A4zGqkVvrXDleRkwdWBD//JwR6etCk2SfvudavE5nXQig6Riyi2f1LCXdUfdqjfg783/f+Yt9dP4RW+Kajrpff4Ue+/axa1blgQbTq31Sy8=; 3:Dg/KdYR1PGhtPTEasVboH/jzlDXJSQNvi7USMTfBBw8lMC98nUluJphe9C5oQNTZ5WKi5HDEU6Tmpf2SfCB6DJ97IEBESoW86XHSU6KYdjTqCBaUPkeqBzgvSIpBAwiY4ln45GYLbWu/+EVbXrSSM36vB7FwsCKHD0LvjIAhhnKcDMcxDnxo2w0J9jviZ17oiSWSuL3lDA/CtVI/B2ww3zDYAJq4THasEkHczaNweWfpDbhb30ke2byaITfNAaWfld1C0XE6riVEUC3QVftCsc66uGp9yS3Xd80DC8xL9sg= X-MS-Office365-Filtering-Correlation-Id: d7b108bb-f9d7-4db4-f533-08d40a684877 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(8251501002); SRVR:MWHPR02MB2829; X-Microsoft-Exchange-Diagnostics: 1; MWHPR02MB2829; 25: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 X-Microsoft-Exchange-Diagnostics: 1; MWHPR02MB2829; 31:EPXsS42+Ju3I7CHVqmrhTSmS5cVSUaYQZlc7veh8AwR+wGsHFCSOZ65mT/M6hMQfMYv7rIY5pscDa/5kfOyQ3V4WCFF6UP86QznL+o8sG0zaEHzcxgsfiWCPpiU1fKl2onaNWy6d5HmVh94/3K+SqwBI7moAgYyfpG8x9JEr/9ZMz9OiwM7P9E8w/RVKha9m9hEiuf+XsxCFp0uD+y2fwlOOqDl92VM71K6jQwxn6IIEdLZBe61Bmjf6+9CAUZ7kZsj+ioQjmTdEHNC7WiCqHg==; 20: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 X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(6040176)(601004)(2401047)(8121501046)(5005006)(13018025)(13016025)(3002001)(10201501046)(6055026); SRVR:MWHPR02MB2829; BCL:0; PCL:0; RULEID:; SRVR:MWHPR02MB2829; X-Microsoft-Exchange-Diagnostics: 1; MWHPR02MB2829; 4:KxGfuxuzWtZT1JEMTq4bw9n5pKw52wssfL8PJWUxH0VDQiTwEjkCPNTqAZlLWpolGf8q9SSrYoc44d4i+W2oUqFf0BAZBLIoedrScV/QttljWDDGH9FygaaMS1gSoffCoKCrUI4XDed9zVDutO7UsJNtc2+idnuVnGqcBhTiN4jBrPbfHO3HHhz81DNKS877y8pP+j654qcqylHCe6II7ahrERf0OdW707FiAen+tDt0o8aqvcDFQ5VqnwD8Qth8bz0gvfVAyLmBhDljFv75FaTNpJHVO0cMN34BIcbwITxmdhQpLTYkHudbmLS045zbcd6bCy+OVU8fcgiHUwkcY11UnmeewUVDiz5+vhwO8e6TZvNr82jBwJFTnn3MmtimArHPMSrLkrD4fDGG24zZT1pq1nP9FyUcftL4wYG3Be0M90XBctyrj6bMDnJvfbH5kPT5Rl8FPt13KidQoyMuGQ== X-Forefront-PRVS: 012349AD1C X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtNV0hQUjAyTUIyODI5OzIzOmo1SkR5UU5TNmtPY1pIcEhPTkFGblB5ZnJW?= =?utf-8?B?MXFha3dpUkUyVm5CV0l5TnpDL0lmTnhDQzNqUy8rWC9kaTFnNmliKzNrd1dj?= =?utf-8?B?aE1GWE8rbURwV3haSHY4akxtUkplM0xEdmpYdEJGZ09sUUpJK2dqc00zWUdi?= =?utf-8?B?Q0l3RVBkY1B3U2RUMDZaSVE3YXFFQllCRzhuYWpKWFlXYVk4LytvRDNNMWZq?= =?utf-8?B?TkhSQnhjU05TNFVoMVB5VkFYSTFHNEg5dDFndm5td1BzTDRuYUgwa25xeEJv?= =?utf-8?B?ZTMwNDN1N1hnS3FEc01qZnlvWk1PcGNOTUdCL2ZQRm9QNmVQR3JZc25FekRR?= =?utf-8?B?MUdBVmFhbnNycGdjdWdFMm1ob2xGUjBuR2gwUklzTGdGUmJSS3Q5cS8xV3li?= =?utf-8?B?R0ZZdW5lZXNnNzA0VXdhdERCM0JXTHBweHUvNzdnTGZNMnIwZ0cvcXRNNFBV?= =?utf-8?B?UlRSdE1DU0N6YVR5a2VzbE5HRGpLQityUVhScStIakNOMXl4VjFwQXdYNXVx?= =?utf-8?B?SU4vMW5HZWdOR2dnVG40bnNPbHpVZzFoWVFaTFg0NXNzMnpHbEZ5QTdqSFJQ?= =?utf-8?B?RGtraUxXZHMxNFZxVFhSNk5zZXZQMlZHbGo0V0pjRlhqQ2V3VkVVVUp1d2lu?= =?utf-8?B?cld1dXpqTjBMN3JuOEJWV2xheVZQWXpON1M2QW5uTEVac0doa0NxM2g3M0pJ?= =?utf-8?B?UzlhY3hZRWhZRTF3aThQRGllUDhyM0J2OWd4YW1pSkQwSGlYVTE1MTFheFZT?= =?utf-8?B?bk9SQmR1NXZRK0RhamdTeEdxZHFGZjlyWGFvRUpZMXZkN0JzeElhdmJLQUFw?= =?utf-8?B?MUVlMi8wc3J3dWRlRWhTUTN2UTFDTTV6Q2VRbUJ5YnlYcWhzS1M2MUFscXNW?= =?utf-8?B?aEhRQWtBcW0zZHluZjZKQjk2WDBTYndZdlMrdXdRYUsxblUzSWtiU0hkZEN5?= =?utf-8?B?QmNaZDU5cG5DclJ4UnYvZDdzUkVLZVBJaFRiVkFzb1VIUjlKUjFrV2Q2Q2ZE?= =?utf-8?B?c1pFRUpPKytmTkdJMWJJbURrSTRydXZqZkU1Vit3c1VocllTcURVSVIvcUpv?= =?utf-8?B?c0dlUDFDeEROc0ZaTXJDQTZXOW5NeG5tUVFHTlgvTzNaR1BlRjQ2WXBwUnY5?= =?utf-8?B?MmZORmI0TVNvQUpVenFDbUs5Rnh2cjY2YWI3KzJlNFpmZTlJdWNhZ3pKMnQv?= =?utf-8?B?cHNYZmlOZG83alYveEJUOHJpUVRXMXhsUlMrbmZTcGtXV1V5b0xuVlA4UXVr?= =?utf-8?B?QXU3eS9mdTlHYm5qQWEyQmQzNlFGWEUzWTBBRWxkQjA2NWFMUjd4dlZIM0dh?= =?utf-8?B?UzJLYUgrc3hzbGxYNjdwcGxUQlB0T3MrMkFnTVNzaUFwUE4xQ2RyNVNyRDJO?= =?utf-8?B?VEV2NXkrWElCY2k4UkhYRGRERkhicm5PMlg5MWtWZEkrREJrVm9XWHBIN0hp?= =?utf-8?B?Z1QrZW5ZemY0NDR2SFd5cS9JTzMyVzZEdlRXbks0WG9MeTBDOEp0VUdmWVFt?= =?utf-8?B?QVNLdTJ0anhsRldPWWNKNWQvd2RMOVJldkd3azBSOVVwOFo1OTJhU0xvdVhj?= =?utf-8?B?Z1B2OTB5NWZOL3d1cFkyOVdSZElXS2NTcDZrWGN1UzJCUkJyMTJOQnY2dWZm?= =?utf-8?B?WHZ0RnVHUjV6T25ySTRZZVBUUmw2LzRaZUtEaExROTk4VDFFakFWdGRrVXlw?= =?utf-8?Q?o7kReh8nqS7vqtrLMg=3D?= X-Microsoft-Exchange-Diagnostics: 1; MWHPR02MB2829; 6:4DTZTUUKesKOzCR+69DJSgXy+GPefHSkCDAfJKPmz/Kjaw9c1iiecDIz9+A2BkQYELIemoq1/NK0H/7NQOnZCGSRLgdRX8HVt2nbFWAIfrByLB+hNzlYT8Js+Yb8JKegg2wwUcc6tzivSbRhoRPm0Fi538oqXYp7H3JNdDJYVojEAZNOfT12uI8we/OMzotP1mxAJinb13Yn2tmwnXWVASzeWWTi3x//L0zjquBuT071O61GBSn6vreR23Gu3Lo0kPZXzev7L+/+GPSredODgZfvGrlAD1d5P9BQYCXziA8hHAAvXp8sVLYF4nguoPMqNMqnjTBFSAr0sRuErpZ13c2eMPgqG1fT0C6XWvcO9Yo=; 5:2pV1oKOoG86XyJSCArC2G3PVrgA2KcpazE9rvQLn45XPpZ+qREfSFkzHuQotIM4QEPpZtGWMfdKw80IxP+cyAKDb7n7dpmwa1Gzj91n51M5XiUVO4O9kqyD/vj7VGITTRx1MoY95W4GjDF/KemtPHw==; 24:IaytYXQL7eLOVxqbmH/7TkppLwa7ciaz+GA3peB+74Fd18uhpReMTyuxOMT93heUzqb/Sy4UCohBpl95Tn3ab5+45hwYSt2yTmzlipUcm1k= SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; MWHPR02MB2829; 7:wGyE01btn1zkRF5Ek92PO9i2AQVUSc1pWVxCMLSCP8OdOBZu5AGKQlyfh2fW++w5R5c1FxcVcTcqlqw2cJwxLZPecm3qDOijCPdb4z/9HkIvIWktb4FzfDbquihxPpDL/Sdlq19P2RItjR6s6jo6PvINF4Ke+glkpGY8Xd+sjHhVpCUjbFbcbX8y5363WdsNDguF6GeqjKuRNS6h0eIljpzao/bWqsznx/s/sq3X4+E+Kd9F9v1SuY/p+g0n8WxQZ+PKehSq8SrSODfCNsxyMxm4bEic0mgEi8IN1ITpY8jzvQkWyplYLZsZ88aeidn9BVY6KZGmB/3oOnQcsTd1vAg4srTeezvfXdsf8Nokv6g=; 20:Ndxwe7LXS5JqjEUp/7dzclZWpnrZ5pcHEnTckp4wRNWVQLlsyyj5zPGR1W8PRJ6uv9sJwoZziFLBTANGaXQlHDTVY/BdfgUx3+UjPxFwzT2/xSS0lH50ePQ9b0K7eNyNVw4ugFOnRuix1gj8DYLQhjXdHzc97SHHA5omMMIQQA4ymG7/W0oPz9hOMVPNHBrjYL3IMpg6xk3BbUVj44mSuWNQXwKfdJlf5KeSGq7vGcxKcNM6qKUE03aPtjs+mxwT X-OriginatorOrg: sandisk.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Nov 2016 19:23:57.0256 (UTC) X-MS-Exchange-CrossTenant-Id: fcd9ea9c-ae8c-460c-ab3c-3db42d7ac64d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=fcd9ea9c-ae8c-460c-ab3c-3db42d7ac64d; Ip=[63.163.107.225]; Helo=[milsmgep14.sandisk.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR02MB2829 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On 11/11/2016 10:47 AM, Jens Axboe wrote: > I've been running into problems when stability testing my 4.10 branch, Hello Jens, Can you try the patch below instead of the revert? Thanks, Bart. --- block/blk-mq.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/block/blk-mq.c b/block/blk-mq.c index b7753ae..f047180 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1279,11 +1279,11 @@ static struct request *blk_mq_map_request(struct request_queue *q, return rq; } -static void blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx, - struct request *rq, blk_qc_t *cookie) +static void blk_mq_try_issue_directly(struct request *rq, blk_qc_t *cookie) { int ret; struct request_queue *q = rq->q; + struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, rq->mq_ctx->cpu); struct blk_mq_queue_data bd = { .rq = rq, .list = NULL, @@ -1395,11 +1395,11 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio) if (!(data.hctx->flags & BLK_MQ_F_BLOCKING)) { rcu_read_lock(); - blk_mq_try_issue_directly(data.hctx, old_rq, &cookie); + blk_mq_try_issue_directly(old_rq, &cookie); rcu_read_unlock(); } else { srcu_idx = srcu_read_lock(&data.hctx->queue_rq_srcu); - blk_mq_try_issue_directly(data.hctx, old_rq, &cookie); + blk_mq_try_issue_directly(old_rq, &cookie); srcu_read_unlock(&data.hctx->queue_rq_srcu, srcu_idx); } goto done;