From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: Re: [PATCH 1/5] block: don't call blk_mq_delay_run_hw_queue() in case of BLK_STS_RESOURCE Date: Tue, 19 Sep 2017 18:42:30 +0000 Message-ID: <1505846549.2671.52.camel@wdc.com> References: <20170915164456.9803-1-ming.lei@redhat.com> <20170915164456.9803-2-ming.lei@redhat.com> <1505498249.3420.15.camel@wdc.com> <20170917124000.GB6289@ming.t460p> <1505747894.2685.6.camel@wdc.com> <20170919054308.GA2517@ming.t460p> <1505835394.2671.18.camel@wdc.com> <20170919155603.GB22809@redhat.com> <20170919160401.GC19830@ming.t460p> <1505839754.2671.42.camel@wdc.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from esa5.hgst.iphmx.com ([216.71.153.144]:25711 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751227AbdISSme (ORCPT ); Tue, 19 Sep 2017 14:42:34 -0400 In-Reply-To: Content-Language: en-US Content-ID: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "tom.leiming@gmail.com" Cc: "linux-block@vger.kernel.org" , "hch@infradead.org" , "sagi@grimberg.me" , "snitzer@redhat.com" , "martin.petersen@oracle.com" , "ming.lei@redhat.com" , "linux-scsi@vger.kernel.org" , "axboe@fb.com" , "linux-nvme@lists.infradead.org" , "jejb@linux.vnet.ibm.com" , "loberman@redhat.com" , "dm-devel@redhat.com" T24gV2VkLCAyMDE3LTA5LTIwIGF0IDAwOjU1ICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gT24g V2VkLCBTZXAgMjAsIDIwMTcgYXQgMTI6NDkgQU0sIEJhcnQgVmFuIEFzc2NoZQ0KPiA8QmFydC5W YW5Bc3NjaGVAd2RjLmNvbT4gd3JvdGU6DQo+ID4gT24gV2VkLCAyMDE3LTA5LTIwIGF0IDAwOjA0 ICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gPiA+IFJ1biBxdWV1ZSBhdCBlbmRfaW8gaXMgZGVm aW5pdGVseSB3cm9uZywgYmVjYXVzZSBibGstbXEgaGFzIFNDSEVEX1JFU1RBUlQNCj4gPiA+IHRv IGRvIHRoYXQgYWxyZWFkeS4NCj4gPiANCj4gPiBTb3JyeSBidXQgSSBkaXNhZ3JlZS4gSWYgU0NI RURfUkVTVEFSVCBpcyBzZXQgdGhhdCBjYXVzZXMgdGhlIGJsay1tcSBjb3JlIHRvDQo+ID4gcmVl eGFtaW5lIHRoZSBzb2Z0d2FyZSBxdWV1ZXMgYW5kIHRoZSBoY3R4IGRpc3BhdGNoIGxpc3QgYnV0 IG5vdCB0aGUgcmVxdWV1ZQ0KPiA+IGxpc3QuIElmIGEgYmxvY2sgZHJpdmVyIHJldHVybnMgQkxL X1NUU19SRVNPVVJDRSB0aGVuIHJlcXVlc3RzIGVuZCB1cCBvbiB0aGUNCj4gPiByZXF1ZXVlIGxp c3QuIEhlbmNlIHRoZSBmb2xsb3dpbmcgY29kZSBpbiBzY3NpX2VuZF9yZXF1ZXN0KCk6DQo+IA0K PiBUaGF0IGRvZXNuJ3QgbmVlZCBTQ0hFRF9SRVNUQVJULCBiZWNhdXNlIGl0IGlzIHJlcXVldWUn cw0KPiByZXNwb25zaWJpbGl0eSB0byBkbyB0aGF0LA0KPiBzZWUgYmxrX21xX3JlcXVldWVfd29y aygpLCB3aGljaCB3aWxsIHJ1biBodyBxdWV1ZSBhdCB0aGUgZW5kIG9mIHRoaXMgZnVuYy4NCg0K VGhhdCdzIG5vdCB3aGF0IEkgd2FzIHRyeWluZyB0byBleHBsYWluLiBXaGF0IEkgd2FzIHRyeWlu ZyB0byBleHBsYWluIGlzIHRoYXQNCmV2ZXJ5IGJsb2NrIGRyaXZlciB0aGF0IGNhbiBjYXVzZSBh IHJlcXVlc3QgdG8gZW5kIHVwIG9uIHRoZSByZXF1ZXVlIGxpc3QgaXMNCnJlc3BvbnNpYmxlIGZv ciBraWNraW5nIHRoZSByZXF1ZXVlIGxpc3QgYXQgYSBsYXRlciB0aW1lLiBIZW5jZSB0aGUNCmti bG9ja2Rfc2NoZWR1bGVfd29yaygmc2Rldi0+cmVxdWV1ZV93b3JrKSBjYWxsIGluIHRoZSBTQ1NJ IGNvcmUgYW5kIHRoZQ0KYmxrX21xX2tpY2tfcmVxdWV1ZV9saXN0KCkgYW5kIGJsa19tcV9kZWxh eV9raWNrX3JlcXVldWVfbGlzdCgpIGNhbGxzIGluIHRoZQ0KZG0gY29kZS4gV2hhdCBJIHdvdWxk IGxpa2UgdG8gc2VlIGlzIG1lYXN1cmVtZW50IHJlc3VsdHMgZm9yIGRtLW1wYXRoIHdpdGhvdXQN CnRoaXMgcGF0Y2ggc2VyaWVzIGFuZCBhIGNhbGwgdG8ga2ljayB0aGUgcmVxdWV1ZSBsaXN0IGFk ZGVkIHRvIHRoZSBkbS1tcGF0aA0KZW5kX2lvIGNvZGUuDQoNCkJhcnQu