From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: "ming.lei@redhat.com" CC: "linux-block@vger.kernel.org" , "hch@infradead.org" , "snitzer@redhat.com" , "martin.petersen@oracle.com" , "axboe@kernel.dk" , "linux-scsi@vger.kernel.org" , "jejb@linux.vnet.ibm.com" , "loberman@redhat.com" , "dm-devel@redhat.com" Subject: Re: [PATCH V3] blk-mq: introduce BLK_STS_DEV_RESOURCE Date: Mon, 29 Jan 2018 16:48:31 +0000 Message-ID: <1517244510.2687.10.camel@wdc.com> References: <20180123161613.14214-1-ming.lei@redhat.com> <1516724659.3339.7.camel@sandisk.com> <20180123163717.GE13277@ming.t460p> <1516726653.3339.20.camel@wdc.com> <20180124033109.GA15945@ming.t460p> <20180127190920.GA24759@redhat.com> <1517091161.3055.7.camel@wdc.com> <20180127234151.GA21710@ming.t460p> In-Reply-To: <20180127234151.GA21710@ming.t460p> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: T24gU3VuLCAyMDE4LTAxLTI4IGF0IDA3OjQxICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gTm90 IG1lbnRpb24sIHRoZSByZXF1ZXN0IGlzbid0IGFkZGVkIHRvIGRpc3BhdGNoIGxpc3QgeWV0IGlu IC5xdWV1ZV9ycSgpLA0KPiBzdHJpY3RseSBzcGVha2luZywgaXQgaXMgbm90IGNvcnJlY3QgdG8g Y2FsbCBibGtfbXFfZGVsYXlfcnVuX2h3X3F1ZXVlKCkgaW4NCj4gLnF1ZXVlX3JxKCksIHNvIHRo ZSBjdXJyZW50IGJsb2NrIGxheWVyIEFQSSBjYW4ndCBoYW5kbGUgaXQgd2VsbCBlbm91Z2guDQoN CkkgZGlzYWdyZWUgdGhhdCBpdCBpcyBub3QgY29ycmVjdCB0byBjYWxsIGJsa19tcV9kZWxheV9y dW5faHdfcXVldWUoKSBmcm9tDQppbnNpZGUgLnF1ZXVlX3JxKCkuIEFkZGl0aW9uYWxseSwgSSBo YXZlIGFscmVhZHkgZXhwbGFpbmVkIHRvIHlvdSBpbg0KcHJldmlvdXMgZS1tYWlscyB3aHkgaXQn cyBmaW5lIHRvIGNhbGwgdGhhdCBmdW5jdGlvbiBmcm9tIGluc2lkZSAucXVldWVfcnEoKToNCi0g Tm9ib2R5IGhhcyBldmVyIG9ic2VydmVkIHRoZSByYWNlIHlvdSBkZXNjcmliZWQgYmVjYXVzZSB0 aGUgdGltZSBhZnRlcg0KICB3aGljaCBhIHF1ZXVlIGlzIHJlcnVuIGJ5IGJsa19tcV9kZWxheV9y dW5faHdfcXVldWUoKSBpcyBtdWNoIGxhcmdlciB0aGFuDQogIHRoZSB0aW1lIGR1cmluZyB3aGlj aCB0aGF0IHJhY2UgZXhpc3RzLg0KLSBJdCBpcyBlYXN5IHRvIGZpeCB0aGlzIHJhY2UgaW5zaWRl IHRoZSBibG9jayBsYXllciwgbmFtZWx5IGJ5IHVzaW5nDQogIGNhbGxfcmN1KCkgaW5zaWRlIHRo ZSBibGtfbXFfZGVsYXlfcnVuX2h3X3F1ZXVlKCkgaW1wbGVtZW50YXRpb24gdG8NCiAgcG9zdHBv bmUgdGhlIHF1ZXVlIHJlcnVubmluZyB1bnRpbCBhZnRlciB0aGUgcmVxdWVzdCBoYXMgYmVlbiBh ZGRlZCBiYWNrIHRvDQogIHRoZSBkaXNwYXRjaCBsaXN0Lg0KDQo+ID4gLSBUaGUgcGF0Y2ggYXQg dGhlIHN0YXJ0IG9mIHRoaXMgdGhyZWFkIGludHJvZHVjZXMgYSByZWdyZXNzaW9uIGluIHRoZQ0K PiA+ICAgU0NTSSBjb3JlLCBuYW1lbHkgYSBxdWV1ZSBzdGFsbCBpZiBhIHJlcXVlc3QgY29tcGxl dGlvbiBvY2N1cnMgY29uY3VycmVudGx5DQo+ID4gICB3aXRoIHRoZSBuZXdseSBhZGRlZCBCTEtf TVFfU19TQ0hFRF9SRVNUQVJUIHRlc3QgaW4gdGhlIGJsay1tcSBjb3JlLg0KPiANCj4gVGhpcyBw YXRjaCBvbmx5IG1vdmVzIHRoZSBibGtfbXFfZGVsYXlfcnVuX2h3X3F1ZXVlKCkgZnJvbSBzY3Np X3F1ZXVlX3JxKCkNCj4gdG8gYmxrLW1xLCBhZ2FpbiwgcGxlYXNlIGV4cGxhaW4gaXQgaW4gZGV0 YWlsIGhvdyB0aGlzIHBhdGNoIFYzIGludHJvZHVjZXMgdGhpcw0KPiByZWdyZXNzaW9uIG9uIFND U0kuDQoNClBsZWFzZSByZXJlYWQgdGhlIGZvbGxvd2luZyBtZXNzYWdlOiBodHRwczovL21hcmMu aW5mby8/bD1kbS1kZXZlbCZtPTE1MTY3MjQ4MDEwNzU2MC4NCg0KVGhhbmtzLA0KDQpCYXJ0Lg==