From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: "ming.lei@redhat.com" , "snitzer@redhat.com" , "axboe@kernel.dk" CC: "linux-scsi@vger.kernel.org" , "hch@infradead.org" , "dm-devel@redhat.com" , "linux-block@vger.kernel.org" , "martin.petersen@oracle.com" , "jejb@linux.vnet.ibm.com" , "loberman@redhat.com" Subject: Re: [PATCH V3] blk-mq: introduce BLK_STS_DEV_RESOURCE Date: Sat, 27 Jan 2018 22:12:43 +0000 Message-ID: <1517091161.3055.7.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> In-Reply-To: <20180127190920.GA24759@redhat.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: T24gU2F0LCAyMDE4LTAxLTI3IGF0IDE0OjA5IC0wNTAwLCBNaWtlIFNuaXR6ZXIgd3JvdGU6DQo+ IE1pbmcgbGV0IG1lIGtub3cgdGhhdCBoZSBzdWNjZXNzZnVsbHkgdGVzdGVkIHRoaXMgVjMgcGF0 Y2ggdXNpbmcgYm90aA0KPiB5b3VyIHRlc3QgKGZpbyB0byBib3RoIG1wYXRoIGFuZCB1bmRlcmx5 aW5nIHBhdGgpIGFuZCBCYXJ0J3MgKDAyLW1xIHdpdGgNCj4gY2FuX3F1ZXVlIGluIGd1ZXN0KS4N Cj4gDQo+IFdvdWxkIGJlIGdyZWF0IGlmIHlvdSdkIHJldmlldyBhbmQgdmVyaWZ5IHRoaXMgZml4 IHdvcmtzIGZvciB5b3UgdG9vLg0KPiANCj4gSWRlYWxseSB3ZSdkIGdldCBhIGZpeCBmb3IgdGhp cyByZWdyZXNzaW9uIHN0YWdlZCBmb3IgNC4xNiBpbmNsdXNpb24uDQo+IFRoaXMgVjMgcGF0Y2gg c2VlbXMgbGlrZSB0aGUgYmVzdCBvcHRpb24gd2UgaGF2ZSBhdCB0aGlzIHBvaW50Lg0KDQpIZWxs byBNaWtlLA0KDQpUaGVyZSBhcmUgc2V2ZXJhbCBpc3N1ZXMgd2l0aCB0aGUgcGF0Y2ggYXQgdGhl IHN0YXJ0IG9mIHRoaXMgdGhyZWFkOg0KLSBJdCBpcyBhbiB1bm5lY2Vzc2FyeSBjaGFuZ2Ugb2Yg dGhlIGJsb2NrIGxheWVyIEFQSS4gUXVldWUgc3RhbGxzIGNhbg0KICBhbHJlYWR5IGJlIGFkZHJl c3NlZCB3aXRoIHRoZSBjdXJyZW50IGJsb2NrIGxheWVyIEFQSSwgbmFtZWx5IGJ5IGluc2VydGlu Zw0KICBhIGJsa19tcV9kZWxheV9ydW5faHdfcXVldWUoKSBjYWxsIGJlZm9yZSByZXR1cm5pbmcg QkxLX1NUU19SRVNPVVJDRS4NCi0gVGhlIHBhdGNoIGF0IHRoZSBzdGFydCBvZiB0aGlzIHRocmVh ZCBjb21wbGljYXRlcyBjb2RlIGZ1cnRoZXIgdGhhdCBpcw0KICBhbHJlYWR5IHRvbyBjb21wbGlj YXRlZCwgbmFtZWx5IHRoZSBibGstbXEgY29yZS4NCi0gVGhlIHBhdGNoIGF0IHRoZSBzdGFydCBv ZiB0aGlzIHRocmVhZCBpbnRyb2R1Y2VzIGEgcmVncmVzc2lvbiBpbiB0aGUNCiAgU0NTSSBjb3Jl LCBuYW1lbHkgYSBxdWV1ZSBzdGFsbCBpZiBhIHJlcXVlc3QgY29tcGxldGlvbiBvY2N1cnMgY29u Y3VycmVudGx5DQogIHdpdGggdGhlIG5ld2x5IGFkZGVkIEJMS19NUV9TX1NDSEVEX1JFU1RBUlQg dGVzdCBpbiB0aGUgYmxrLW1xIGNvcmUuDQoNCkFzIGEga2VybmVsIG1haW50YWluZXIgb25lIG9m IHlvdXIgcmVzcG9uc2liaWxpdGllcyBpcyB0byBoZWxwIGtlZXBpbmcgdGhlDQpxdWFsaXR5IG9m IHRoZSBrZXJuZWwgY29kZSBoaWdoLiBTbyBJIHRoaW5rIHRoYXQgeW91LCBhcyBhIGtlcm5lbCBt YWludGFpbmVyLA0Kc2hvdWxkIHRlbGwgTWluZyB0byBkaXNjYXJkIHRoaXMgcGF0Y2ggaW5zdGVh ZCBvZg0KYXNraW5nIHRvIG1lcmdlIGl0IHVwc3RyZWFtDQpnaXZlbiBhbGwgdGhlIGRpc2FkdmFu dGFnZXMgb2YgdGhpcyBwYXRjaC4NCg0KQmFydC4=