From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: "willy@infradead.org" , "mcgrof@kernel.org" CC: "boris.ostrovsky@oracle.com" , "ONeukum@suse.com" , "linux-block@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "nborisov@suse.com" , "oleg.b.antonyan@gmail.com" , "linux-pm@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "pavel@ucw.cz" , "darrick.wong@oracle.com" , "viro@zeniv.linux.org.uk" , "ming.lei@redhat.com" , "rjw@rjwysocki.net" , "jgross@suse.com" , "oleksandr@natalenko.name" , "todd.e.brandt@linux.intel.com" , "martin.petersen@oracle.com" , "linux-fsdevel@vger.kernel.org" , "jikos@kernel.org" , "len.brown@intel.com" , "tytso@mit.edu" , "jack@suse.cz" Subject: Re: [RFC 0/5] fs: replace kthread freezing with filesystem freeze/thaw Date: Tue, 3 Oct 2017 20:59:26 +0000 Message-ID: <1507064365.2567.36.camel@wdc.com> References: <20171003185313.1017-1-mcgrof@kernel.org> <20171003193300.GD5362@ming.t460p> <20171003200511.GD2294@wotan.suse.de> <20171003204755.GB8848@bombadil.infradead.org> In-Reply-To: <20171003204755.GB8848@bombadil.infradead.org> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org List-ID: T24gVHVlLCAyMDE3LTEwLTAzIGF0IDEzOjQ3IC0wNzAwLCBNYXR0aGV3IFdpbGNveCB3cm90ZToN Cj4gVGhlIFNDU0kgbGF5ZXIgY2FuIHNlbmQgU0NTSSBjb21tYW5kczsgdGhleSBhcmVuJ3QgSS9P cyBpbiB0aGUgc2Vuc2UgdGhhdA0KPiB0aGV5IGRvIHJlYWRzIGFuZCB3cml0ZXMgdG8gbWVkaWEs IGJ1dCB0aGV5IGFyZSBibG9jayByZXF1ZXN0cy4gIE1heWJlIHRob3NlDQo+IHNob3VsZCBiZSBh bGxvd2VkIGV2ZW4gdG8gZnJvemVuIGRldmljZXM/DQoNCkhlbGxvIE1hdHRoZXcsDQoNCkkgdGhp bmsgb25seSBSUUZfUE0gcmVxdWVzdHMgc2hvdWxkIGJlIHByb2Nlc3NlZCBmb3IgZnJvemVuIFND U0kgZGV2aWNlcw0KYW5kIG5vIG90aGVyIHJlcXVlc3RzLg0KDQpCYXJ0Lg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751768AbdJCU7e (ORCPT ); Tue, 3 Oct 2017 16:59:34 -0400 Received: from esa1.hgst.iphmx.com ([68.232.141.245]:47219 "EHLO esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750820AbdJCU7b (ORCPT ); Tue, 3 Oct 2017 16:59:31 -0400 X-IronPort-AV: E=Sophos;i="5.42,475,1500912000"; d="scan'208";a="158564494" From: Bart Van Assche To: "willy@infradead.org" , "mcgrof@kernel.org" CC: "boris.ostrovsky@oracle.com" , "ONeukum@suse.com" , "linux-block@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "nborisov@suse.com" , "oleg.b.antonyan@gmail.com" , "linux-pm@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "pavel@ucw.cz" , "darrick.wong@oracle.com" , "viro@zeniv.linux.org.uk" , "ming.lei@redhat.com" , "rjw@rjwysocki.net" , "jgross@suse.com" , "oleksandr@natalenko.name" , "todd.e.brandt@linux.intel.com" , "martin.petersen@oracle.com" , "linux-fsdevel@vger.kernel.org" , "jikos@kernel.org" , "len.brown@intel.com" , "tytso@mit.edu" , "jack@suse.cz" Subject: Re: [RFC 0/5] fs: replace kthread freezing with filesystem freeze/thaw Thread-Topic: [RFC 0/5] fs: replace kthread freezing with filesystem freeze/thaw Thread-Index: AQHTPHjkX08m3m/wM06gtjiNpnKJhKLSg+eAgAAI/YCAAAvwgIAAAzeA Date: Tue, 3 Oct 2017 20:59:26 +0000 Message-ID: <1507064365.2567.36.camel@wdc.com> References: <20171003185313.1017-1-mcgrof@kernel.org> <20171003193300.GD5362@ming.t460p> <20171003200511.GD2294@wotan.suse.de> <20171003204755.GB8848@bombadil.infradead.org> In-Reply-To: <20171003204755.GB8848@bombadil.infradead.org> 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: [63.163.107.100] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;CY1PR0401MB1536;20:SYSym42gort6sLYnJUPVFiZc1t9XPqJMk8Bms6nt1pIatxMkyXCmXuL/Hs75uHa+kEZc2TI9ayaWb7elmo+JvaiaOIErvbL+SJXpGXcsxzBuhTl/LAkMYeUE8w2JDdv8y/Qsg5088+giaQm6x58n5BQy5YN1uXAAAuiatmc+MjE= x-ms-office365-filtering-correlation-id: 937de96c-83da-4cfd-bfc4-08d50aa1a1ce x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(22001)(2017030254152)(48565401081)(2017052603199)(201703131423075)(201703031133081)(201702281549075);SRVR:CY1PR0401MB1536; x-ms-traffictypediagnostic: CY1PR0401MB1536: wdcipoutbound: EOP-TRUE x-exchange-antispam-report-test: UriScan:(788757137089); x-microsoft-antispam-prvs: x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(2401047)(5005006)(8121501046)(10201501046)(100000703101)(100105400095)(3002001)(93006095)(93001095)(6055026)(6041248)(20161123562025)(20161123555025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123558100)(20161123564025)(20161123560025)(6072148)(201708071742011)(100000704101)(100105200095)(100000705101)(100105500095);SRVR:CY1PR0401MB1536;BCL:0;PCL:0;RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095);SRVR:CY1PR0401MB1536; x-forefront-prvs: 044968D9E1 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(346002)(39860400002)(376002)(24454002)(189002)(377424004)(199003)(2906002)(77096006)(36756003)(229853002)(2900100001)(93886005)(7736002)(54906003)(110136005)(316002)(103116003)(305945005)(478600001)(81156014)(189998001)(72206003)(97736004)(2950100002)(5660300001)(86362001)(7416002)(81166006)(8676002)(6506006)(8936002)(106356001)(105586002)(3846002)(6116002)(102836003)(50986999)(6436002)(101416001)(99286003)(3280700002)(6512007)(54356999)(3660700001)(68736007)(6486002)(33646002)(6246003)(2501003)(25786009)(14454004)(76176999)(53936002)(66066001)(4326008)(39060400002);DIR:OUT;SFP:1102;SCL:1;SRVR:CY1PR0401MB1536;H:CY1PR0401MB1536.namprd04.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;MX:1;A:1;LANG:en; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: <4B44B2AFF4B5EA498A900C8C99DEA270@namprd04.prod.outlook.com> MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Oct 2017 20:59:26.2236 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR0401MB1536 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by nfs id v93KxdXH023597 On Tue, 2017-10-03 at 13:47 -0700, Matthew Wilcox wrote: > The SCSI layer can send SCSI commands; they aren't I/Os in the sense that > they do reads and writes to media, but they are block requests. Maybe those > should be allowed even to frozen devices? Hello Matthew, I think only RQF_PM requests should be processed for frozen SCSI devices and no other requests. Bart. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: Re: [RFC 0/5] fs: replace kthread freezing with filesystem freeze/thaw Date: Tue, 3 Oct 2017 20:59:26 +0000 Message-ID: <1507064365.2567.36.camel@wdc.com> References: <20171003185313.1017-1-mcgrof@kernel.org> <20171003193300.GD5362@ming.t460p> <20171003200511.GD2294@wotan.suse.de> <20171003204755.GB8848@bombadil.infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from esa1.hgst.iphmx.com ([68.232.141.245]:47219 "EHLO esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750820AbdJCU7b (ORCPT ); Tue, 3 Oct 2017 16:59:31 -0400 In-Reply-To: <20171003204755.GB8848@bombadil.infradead.org> Content-Language: en-US Content-ID: <4B44B2AFF4B5EA498A900C8C99DEA270@namprd04.prod.outlook.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: "willy@infradead.org" , "mcgrof@kernel.org" Cc: "boris.ostrovsky@oracle.com" , "ONeukum@suse.com" , "linux-block@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "nborisov@suse.com" , "oleg.b.antonyan@gmail.com" , "linux-pm@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "pavel@ucw.cz" , "darrick.wong@oracle.com" , "viro@zeniv.linux.org.uk" , "ming.lei@redhat.com" , "rjw@rjwysocki.net" , "jgross@suse.com" , "oleksandr@natalenko.name" , todd.e.brandt@linux.intel.co T24gVHVlLCAyMDE3LTEwLTAzIGF0IDEzOjQ3IC0wNzAwLCBNYXR0aGV3IFdpbGNveCB3cm90ZToN Cj4gVGhlIFNDU0kgbGF5ZXIgY2FuIHNlbmQgU0NTSSBjb21tYW5kczsgdGhleSBhcmVuJ3QgSS9P cyBpbiB0aGUgc2Vuc2UgdGhhdA0KPiB0aGV5IGRvIHJlYWRzIGFuZCB3cml0ZXMgdG8gbWVkaWEs IGJ1dCB0aGV5IGFyZSBibG9jayByZXF1ZXN0cy4gIE1heWJlIHRob3NlDQo+IHNob3VsZCBiZSBh bGxvd2VkIGV2ZW4gdG8gZnJvemVuIGRldmljZXM/DQoNCkhlbGxvIE1hdHRoZXcsDQoNCkkgdGhp bmsgb25seSBSUUZfUE0gcmVxdWVzdHMgc2hvdWxkIGJlIHByb2Nlc3NlZCBmb3IgZnJvemVuIFND U0kgZGV2aWNlcw0KYW5kIG5vIG90aGVyIHJlcXVlc3RzLg0KDQpCYXJ0Lg==