Received: by 10.192.165.148 with SMTP id m20csp925915imm; Fri, 27 Apr 2018 09:40:00 -0700 (PDT) X-Google-Smtp-Source: AB8JxZq5BVSgqGrpb3AW038g53HS0KBgg+DEqTjvYXaoXdflN0J9t9UJ6xEZcd7xCKRJwX/kDOsu X-Received: by 2002:a17:902:4464:: with SMTP id k91-v6mr2860056pld.219.1524847200343; Fri, 27 Apr 2018 09:40:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1524847200; cv=none; d=google.com; s=arc-20160816; b=a7XyLM5Ewd+u/wPSzZELb7eanvVF17scCGS8QDpPz3c/HXyXtX6gfYA1AbSu5YgTJ7 9RbXrpcyyT3/0PPqyJwtxEDpHYXH2kH2SJJDMDnr0QKP+Mp0CayhrcjT3UNd85v8XmEQ 1RzTdFjH3x5ixjTOfgoLshQGwvhlQbVhUK7PUx5ghE22SjXJB2wbOGkdczaDBWJayK/W PtXrDZWzKVqA8q7Dm5c3ZPqyI64mKRnOvFYmzsCf4/IPhsBhtM8DW31RIcqWrulw+XNQ 9pJu3CidLEkiDQTZyZRJHCCIIZc4m1InWbub2HImHAbYjE0mvIAM4+OdxYyFUV0AOB1U 0swg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:spamdiagnosticmetadata:spamdiagnosticoutput :wdcipoutbound:content-language:accept-language:in-reply-to :references:message-id:date:thread-index:thread-topic:subject:cc:to :from:dkim-signature:dkim-signature:arc-authentication-results; bh=a/QPjilt720sorQPsU+T6n1Opb8x2HyYPzcXhObzT8I=; b=AKo1NqBBvrIEEvJa0qYeN9woDeUmKuu/dZwvfb8AKWFQVFOS0LgpXTr8BpiV5B8RK5 8coBw4tcPUb9pKkTeWEp6ztJXLG9vXe+cM76EfJ9/6dAKK5nnUdP6ggj1Fr+V6IzRX4A LLElySIJortPgl2TMxaLMIb2xEQ0p+vyM/Bo0kXP2MAr6RjeeozkzI09NcDSdiYJjQrN qrxMA8BW49kSpjE5gCaMo56s/nNtyD1yJSvjeBUbkpMjOSFx4QNkMkSqf8MkxPWHyb/V o7xDrfN1G41Sn2yBE4hkCZlhP8yB3oNSx12iByvUeXA4SWbsawJbC0iNG1qKyaG3GU2I Hvfg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@wdc.com header.s=dkim.wdc.com header.b=Hcra3lTG; dkim=pass header.i=@sharedspace.onmicrosoft.com header.s=selector1-wdc-com header.b=ntJPKlp3; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y11-v6si1513809plg.154.2018.04.27.09.39.45; Fri, 27 Apr 2018 09:40:00 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@wdc.com header.s=dkim.wdc.com header.b=Hcra3lTG; dkim=pass header.i=@sharedspace.onmicrosoft.com header.s=selector1-wdc-com header.b=ntJPKlp3; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758808AbeD0Qil (ORCPT + 99 others); Fri, 27 Apr 2018 12:38:41 -0400 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:50050 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758277AbeD0Qij (ORCPT ); Fri, 27 Apr 2018 12:38:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1524847120; x=1556383120; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=a/QPjilt720sorQPsU+T6n1Opb8x2HyYPzcXhObzT8I=; b=Hcra3lTGgU6qBsmX9+C2SfUuAdo+Kn9qYQRMVzTe8Q0Q6mXBbGEcRH/r lk2MG2tQBsxydAIZ9WX2Ihln7/BfUg82t5aHNc+CkqfkAiKU8+3rMhrwo IQ/onXBQQ4KLpjVb0Ko2bum2obxbZetgZPiM1LhHNitDYUnPrHiAMwH7y YvdT6UtkLKxA18X3jjOujPPPVcgBPNp8xHiKarL6MtPovdxqArnUq/GKN 6ZuJOgqETVpENcLa44K9qfaz4xO63NTnn+xugFaAk7v7FO0Ynk0eMExJv JJI4XSkcSYmTiF9Sq8+jf+++mt3MSP6eGCxDPYhDqGhBvJ2VFnTgJSbS+ A==; X-IronPort-AV: E=Sophos;i="5.49,335,1520870400"; d="scan'208";a="77580201" Received: from mail-by2nam01lp0176.outbound.protection.outlook.com (HELO NAM01-BY2-obe.outbound.protection.outlook.com) ([216.32.181.176]) by ob1.hgst.iphmx.com with ESMTP; 28 Apr 2018 00:38:08 +0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sharedspace.onmicrosoft.com; s=selector1-wdc-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=a/QPjilt720sorQPsU+T6n1Opb8x2HyYPzcXhObzT8I=; b=ntJPKlp390aLSzsBsHX8k4WHK0Flkw9lbn7mjlmZXWFUfa8WCdvTxYxWMqlJWXrWuL30x4UyIJcqtmpQXjubqJj7AqPT2BtOKqb6pyvr11pczfutE6RD90WYFYNsNZVliIhb8EICJxmP+J5Pbb5WThaDT7Dt9D7Tl8U2lIhb7To= Received: from MWHPR04MB1198.namprd04.prod.outlook.com (10.173.48.151) by MWHPR04MB1262.namprd04.prod.outlook.com (10.174.175.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.696.15; Fri, 27 Apr 2018 16:38:05 +0000 Received: from MWHPR04MB1198.namprd04.prod.outlook.com ([fe80::3154:614a:12c7:987c]) by MWHPR04MB1198.namprd04.prod.outlook.com ([fe80::3154:614a:12c7:987c%13]) with mapi id 15.20.0696.017; Fri, 27 Apr 2018 16:38:05 +0000 From: Bart Van Assche To: "maier@linux.ibm.com" , "osandov@osandov.com" CC: "lizefan@huawei.com" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "rostedt@goodmis.org" , "mingo@redhat.com" , "axboe@kernel.dk" , "gregkh@linuxfoundation.org" Subject: Re: [PATCH 2/2] tracing/events: block: dev_t via driver core for plug and unplug events Thread-Topic: [PATCH 2/2] tracing/events: block: dev_t via driver core for plug and unplug events Thread-Index: AQHT0yiPxIrlV00jKkaZpH/PINtV0KQBghkAgAIY4ICABObUgIAAGbwAgAd1LoCABNUwgA== Date: Fri, 27 Apr 2018 16:38:05 +0000 Message-ID: <9b5e43db06f6516f7c0e9cc379e0c2964000d4e1.camel@wdc.com> References: <20180413130719.22921-1-maier@linux.ibm.com> <20180413130719.22921-3-maier@linux.ibm.com> <20180415083154.GA12254@kroah.com> <59186bf6-abf1-87b0-914d-eed1b40ef4a8@linux.ibm.com> <20180419192341.GC20941@vader> <8624e2bec853f0bb195966ab54bc42bf15eda0ec.camel@wdc.com> <056d8ee9-5e1d-8219-c24c-9130d6c1dcbf@linux.ibm.com> In-Reply-To: <056d8ee9-5e1d-8219-c24c-9130d6c1dcbf@linux.ibm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Bart.VanAssche@wdc.com; x-originating-ip: [199.255.44.173] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MWHPR04MB1262;7:lffUdnha3u3qXVxpcT42E78rMS4no9dFJXsOROhoyx84U+MdB041y4lYDQ8nAmtN/c5+EaBWUxHUmrOHjRoSGLH0AQS7hYUiDVmVPLSk0qiSVGGP43XM3Ie84lE5n4erXqC8wvhWZgbU07/WQ6/FDl3Bq6jjMtCALgTqQ9Z5gMDsLKCtaSSaz8p/9w1ILaKKN/8JywepheEhFCFxmSFK+p4vu3KoRcwMOTv6EZ5FASbd7ooEwiV+6fpEssmN5pXF;20:knAHqJ3nGHsVczP96X4vWF27Q2+e6Smhdko/cL+LvxALxWZQ2U6wbaPKW81hnjjDH8uSsoPneoB7fJk3lBN/6SrAaysHHQRNBDO+xjOhsgq+hYy7mzTujSI4x9HQz2xmwiR4E5BMnxMc9eqeqYkXzBBgdtvy78wuZkQ3XL9yjuE= x-ms-exchange-antispam-srfa-diagnostics: SOS; x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7153060)(7193020);SRVR:MWHPR04MB1262; x-ms-traffictypediagnostic: MWHPR04MB1262: wdcipoutbound: EOP-TRUE x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040522)(2401047)(5005006)(8121501046)(93006095)(93001095)(3231232)(944501410)(52105095)(3002001)(10201501046)(6055026)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(20161123560045)(20161123562045)(20161123558120)(6072148)(201708071742011);SRVR:MWHPR04MB1262;BCL:0;PCL:0;RULEID:;SRVR:MWHPR04MB1262; x-forefront-prvs: 0655F9F006 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(346002)(39380400002)(376002)(396003)(366004)(39860400002)(189003)(199004)(377424004)(51444003)(72206003)(76176011)(6512007)(99286004)(93886005)(5660300001)(486006)(110136005)(54906003)(53936002)(106356001)(476003)(305945005)(66066001)(316002)(2616005)(11346002)(4326008)(229853002)(2501003)(86362001)(59450400001)(6436002)(6506007)(102836004)(186003)(6246003)(68736007)(26005)(2900100001)(5250100002)(6486002)(3846002)(25786009)(3660700001)(2906002)(8936002)(7736002)(97736004)(105586002)(3280700002)(81166006)(118296001)(6116002)(14454004)(36756003)(478600001)(81156014)(8676002)(446003);DIR:OUT;SFP:1102;SCL:1;SRVR:MWHPR04MB1262;H:MWHPR04MB1198.namprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; x-microsoft-antispam-message-info: NViUP3wzhCihFobQY5fNsIoMhBpD0c4dxPvxXS7AbL6uAvvKoBXGdsj4g59fLwLjYGWCapNOcswleUhmYDl0wmmKEW1QHJYMP3065S4dV+nm4s8CCPYqpgi7HzW8TxqHu1LsHb3eKP8hJdu80QFYBJykqXokg/Xu53mC7jHaiFod7/jShYW81TjPhFuaxBsZ spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: <7773AC4C73C4404D97501A4F0727663E@namprd04.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: d45a9e47-6a0f-4fe3-35f3-08d5ac5d4047 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: d45a9e47-6a0f-4fe3-35f3-08d5ac5d4047 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Apr 2018 16:38:05.0950 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR04MB1262 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVHVlLCAyMDE4LTA0LTI0IGF0IDE2OjQ5ICswMjAwLCBTdGVmZmVuIE1haWVyIHdyb3RlOg0K PiBUaGUgb2JqZWN0IGxpZmUgY3ljbGUgc2VlbXMgdG8gYmU6DQo+IA0KPiAoMSkgYmxrX2FsbG9j X3F1ZXVlKCkgYWxzbyBjcmVhdGVzIGdlbmRpc2sga29iag0KDQpJIHRoaW5rIHRoaXMgaXMgYSBt aXNpbnRlcnByZXRhdGlvbi4gYmxrX2FsbG9jX3F1ZXVlX25vZGUoKSBpbml0aWFsaXplcyB0aGUN CnJlcXVlc3QgcXVldWUga29iaiBhcyBmb2xsb3dzOg0KDQoJa29iamVjdF9pbml0KCZxLT5rb2Jq LCAmYmxrX3F1ZXVlX2t0eXBlKTsNCg0KcmVnaXN0ZXJfZGlzaygpIGNyZWF0ZXMgdGhlIC9zeXMv Y2xhc3MvYmxvY2svPGRpc2s+IG5vZGUgYW5kIC9zeXMvYmxvY2svPGRpc2s+DQpsaW5rIGFzIGZv bGxvd3M6DQoNCglpZiAoZGV2aWNlX2FkZChkZGV2KSkNCgkJcmV0dXJuOw0KCWlmICghc3lzZnNf ZGVwcmVjYXRlZCkgew0KCQllcnIgPSBzeXNmc19jcmVhdGVfbGluayhibG9ja19kZXByLCAmZGRl di0+a29iaiwNCgkJCQkJa29iamVjdF9uYW1lKCZkZGV2LT5rb2JqKSk7DQoJCWlmIChlcnIpIHsN CgkJCWRldmljZV9kZWwoZGRldik7DQoJCQlyZXR1cm47DQoJCX0NCgl9DQoNCj4gKDFhKSBTQ1NJ IGRvZXMgTFVOIHByb2JpbmcgSS9PDQo+ICAgICAgbW9zdCBvZiB0aGF0IGlzIGJsa3RyYWNlIFJX QlMgZmllbGQgdmFsdWUgJ04nIGkuZS4gbm9uLVIvVyB3aXRoIGRldl90PT0wDQo+ICAgICAgIHNp bmNlIHEtPmtvYmoucGFyZW50IGlzIHN0aWxsIE5VTEwgd2UgY2Fubm90IGdldCBnZW5kaXNrIGFu ZCB0aHVzIGRldl90DQo+ICAgICAgbmVhciB0aGUgZW5kIGlzIHRoZSBmaXJzdCByZWd1bGFyIHJl YWQgYmxvY2sgSS9PIHdpdGggZGV2X3QhPTANCj4gICAgICAgYXMgYmlvIT1OVUxMIGFuZCBiaV9k aXNrIG9yIHJxX2Rpc2sgYXJlIG5vbi1OVUxMDQo+ICgyKSBibGtfcmVnaXN0ZXJfcXVldWUoKSBh bHNvIGNyZWF0ZXMgcXVldWUga29iaiB3aXRoIGdlbmRpc2sgcGFyZW50DQo+ICAgICBub3cgd2Ug Y2FuIGZvbGxvdyBxLT5rb2JqLnBhcmVudCB0byBnZW5kaXNrIHRvIGdldCBkZXZfdCwNCj4gICAg IGUuZy4gZm9yIFJXQlMgJ04nIHN1Y2ggYXMgaW1wbGljaXQgU0NTSSB0ZXN0IHVuaXQgcmVhZHkg b24gYmxrIGRldiBjbG9zZQ0KDQpQbGVhc2UgaGF2ZSBhIGxvb2sgYXQgdGhlIGRldmljZV9hZGRf ZGlzaygpIGNhbGwgaW4gc2RfcHJvYmVfYXN5bmMoKS4gSSB0aGluaw0KdGhhdCBmdW5jdGlvbiB0 cmlnZ2VycyBhIGNhbGwgb2YgYmxrX3JlZ2lzdGVyX3F1ZXVlKCkuIFRoYXQgbGFzdCBmdW5jdGlv bg0KYXNzb2NpYXRlcyB0aGUgcmVxdWVzdCBxdWV1ZSB3aXRoIHRoZSBnZW5kaXNrIGFzIGZvbGxv d3M6DQoNCglyZXQgPSBrb2JqZWN0X2FkZCgmcS0+a29iaiwga29iamVjdF9nZXQoJmRldi0+a29i aiksICIlcyIsICJxdWV1ZSIpOw0KDQo+ICgzKSBvcHRpb25hbGx5ICJyZWd1bGFyIiBJL08NCj4g KDQpIGJsa191bnJlZ2lzdGVyX3F1ZXVlKCkgY2FsbGVkIGJ5IGRlbF9nZW5kaXNrKCkNCj4gICAg IGRvZXMga29iamVjdF9kZWwoJnEtPmtvYmopIHdoaWNoIE5VTExpZmllcyBxLT5rb2JqLnBhcmVu dCBhZ2Fpbg0KPiAgICAgdGhlIGxhc3QgcHV0IG9mIGdlbmRpc2sgcmVmZXJlbmNlIHJlbGVhc2Vz IGdlbmRpc2sga29iag0KPiAoNSkgYmxrX2NsZWFudXBfcXVldWUoKQ0KPiAgICAgdGhlIGxhc3Qg cHV0IG9mIHF1ZXVlICgvbXEpIHJlZmVyZW5jZSByZWxlYXNlcyBxdWV1ZSAoL21xKSBrb2JqDQoN ClRoZSAvbXEgZGlyZWN0b3J5IGNvcnJlc3BvbmRzIHRvIHEtPm1xX2tvYmouIFRoZSBibG9jayBs YXllciBjb3JlIGRyb3BzIGl0cw0KcmVmZXJlbmNlIHRvIHRoZSBxdWV1ZSBrb2JqZWN0IChxLT5r b2JqKSBieSBjYWxsaW5nIGJsa19wdXRfcXVldWUoKSBhdCB0aGUNCmVuZCBvZiBibGtfY2xlYW51 cF9xdWV1ZSgpLg0KDQo+IFNpbmNlIEkgY2Fubm90IHByb3ZlIGl0J3MgYWx3YXlzIGxpa2UgdGhp cywgSSBmb2xsb3dlZCBCYXJ0J3Mgc3VnZ2VzdGlvbg0KPiBhbmQgYWRkZWQgYW5vdGhlciByZWZj b3VudCBnZXQgYXQgKDIpIGJsa19yZWdpc3Rlcl9xdWV1ZSgpLg0KPiBIb3dldmVyLCB3aGVuIEkg d2FudCB0byBwdXQgdGhhdCBhZGRpdGlvbmFsIHJlZmNvdW50IGF0ICg1KSBibGtfY2xlYW51cF9x dWV1ZSgpLA0KPiB3ZSBvbmx5IGdldCBhIHF1ZXVlIHBvaW50ZXIgYXJndW1lbnQgYXMgY29udGV4 dA0KPiBhbmQgcS0+a29iai5wYXJlbnQ9PU5VTEwgc2luY2UgKDQpLA0KPiBzbyBJIGRvbid0IGtu b3cgaG93IHRvIGdldCB0byB0aGUgZ2VuZGlzayBvYmplY3QgZm9yIHRoZSByZWZjb3VudCBwdXQu DQoNCkhhdmUgeW91IHRyaWVkIHRvIG1vZGlmeSBibGtfcmVnaXN0ZXJfcXVldWUoKSBzdWNoIHRo YXQgaXQgc3RvcmVzIHRoZSBkaXNrDQpwb2ludGVyIGluIGEgbmV3IHN0cnVjdCByZXF1ZXN0X3F1 ZXVlIG1lbWJlcj8NCg0KVGhhbmtzLA0KDQpCYXJ0Lg0KDQoNCg0KDQoNCg0K