From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: "snitzer@redhat.com" CC: "linux-block@vger.kernel.org" , "hch@infradead.org" , "martin.petersen@oracle.com" , "ming.lei@redhat.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: Sun, 28 Jan 2018 03:00:18 +0000 Message-ID: <1517108417.3055.33.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> <20180128002356.GA25933@redhat.com> <1517100877.3055.23.camel@wdc.com> <20180128020312.GA26437@redhat.com> In-Reply-To: <20180128020312.GA26437@redhat.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: T24gU2F0LCAyMDE4LTAxLTI3IGF0IDIxOjAzIC0wNTAwLCBNaWtlIFNuaXR6ZXIgd3JvdGU6DQo+ IFlvdSBjYW5ub3QgZXZlbiBiZSBmb3J0aGNvbWluZyBhYm91dCB0aGUgdGVjaG5pY2FsIG1lcml0 IG9mIGEgY2hhbmdlIHlvdQ0KPiBhdXRob3JlZCAoY29tbWl0IDYwNzdjMmQ3MCkgdGhhdCBJJ20g bGVmdCB0byBjbGVhbiB1cCBpbiB0aGUgZmFjZSBvZg0KPiBwZXJmb3JtYW5jZSBib3R0bGVuZWNr cyBpdCB1bndpdHRpbmdseSBpbnRyb2R1Y2VkPyAgSWYgeW91IHdlcmUgYmVpbmcNCj4gaG9uZXN0 OiB5b3UnZCBncmFudCB0aGF0IHRoZSByYW5kb20gZGVsYXkgb2YgMTAwbXMgaXMgdXR0ZXJseSBi YXNlbGVzcw0KPiAobm90IHRvIG1lbnRpb24gdGhhdCBraWNraW5nIHRoZSBxdWV1ZSBsaWtlIHlv dSBkaWQgaXMgYSBjb21wbGV0ZQ0KPiBoYWNrKS4gIFNvIHRoYXQgMTAwbXMgZGVsYXkgaXMgd2hh dCBteSBkbS00LjE2IGNvbW1pdCBpcyB0YWxraW5nIGFib3V0Lg0KDQpUaGVyZSBhcmUgbXVsdGlw bGUgZXJyb3JzIGluIHRoZSBhYm92ZToNCjEuIEkgaGF2ZSBhbHJlYWR5IGV4cGxhaW5lZCBpbiBk ZXRhaWwgd2h5IGNvbW1pdCA2MDc3YzJkNzAgaXMgKGEpIGNvcnJlY3QNCiAgIGFuZCAoYikgZXNz ZW50aWFsLiBTZWUgZS5nLiBodHRwczovL3d3dy5yZWRoYXQuY29tL2FyY2hpdmVzL2RtLWRldmVs LzIwMTgtSmFudWFyeS9tc2cwMDE2OC5odG1sLg0KMi4gV2l0aCBwYXRjaCAiYmxrLW1xOiBBdm9p ZCB0aGF0IGJsa19tcV9kZWxheV9ydW5faHdfcXVldWUoKSBpbnRyb2R1Y2VzDQogICB1bmludGVu ZGVkIGRlbGF5cyIgYXBwbGllZCwgdGhlcmUgaXMgbm90aGluZyB0byBjbGVhbiB1cCBhbnltb3Jl IHNpbmNlDQogICB0aGF0IHBhdGNoIGVsaW1pbmF0ZXMgdGhlIHF1ZXVlIGRlbGF5cyB0aGF0IHdl cmUgdHJpZ2dlcmVkIGJ5DQogICBibGtfbXFfZGVsYXlfcnVuX2h3X3F1ZXVlKCkuDQozLiBZb3Ug a25vdyB0aGF0IEknbSBob25lc3QuIFN1Z2dlc3RpbmcgdGhhdCBJJ20gbm90IGlzIHdyb25nLg0K NC4gSSBuZXZlciBjbGFpbWVkIHRoYXQgMTAwbXMgaXMgdGhlIG9wdGltYWwgdmFsdWUgZm9yIHRo ZSBxdWV1ZQ0KICAgcmVydW5uaW5nIGRlbGF5LiBJIGhhdmUgYWxyZWFkeSBleHBsYWluZWQgdG8g eW91IHRoYXQgSSBjb3BpZWQgdGhhdA0KICAgdmFsdWUgZnJvbSBvbGRlciBkbS1ycSBjb2RlLg0K DQo+IERvbid0IHByb2plY3Qgb250byBtZSBCYXJ0LiAgVGhpcyBpc24ndCB0aGUgZmlyc3QgdGlt ZSB5b3UndmUgYmVlbg0KPiBjb21wbGV0ZWx5IHVucHJvZmVzc2lvbmFsIGFuZCBzYWRseSBpdCBs aWtlbHkgd29uJ3QgYmUgdGhlIGxhc3QuDQoNClRoZSBvbmx5IHBlcnNvbiB3aG8gaXMgYmVoYXZp bmcgdW5wcm9mZXNzaW9uYWxseSBpbiB0aGlzIGUtbWFpbCB0aHJlYWQNCmlzIHlvdS4NCg0KQmFy dC4NCiAgIA0K