From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: "ming.lei@redhat.com" CC: "hch@lst.de" , "axboe@kernel.dk" , "hare@suse.com" , "jthumshirn@suse.de" , "oleksandr@natalenko.name" , "linux-block@vger.kernel.org" , "martin.petersen@oracle.com" Subject: Re: [PATCH v3 5/6] block: Make SCSI device suspend and resume work reliably Date: Mon, 25 Sep 2017 23:06:11 +0000 Message-ID: <1506380770.2641.54.camel@wdc.com> References: <20170922221405.22091-1-bart.vanassche@wdc.com> <20170922221405.22091-6-bart.vanassche@wdc.com> <20170925022621.GB6434@ming.t460p> <1506356419.2641.11.camel@wdc.com> <20170925225119.GB18137@ming.t460p> In-Reply-To: <20170925225119.GB18137@ming.t460p> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: T24gVHVlLCAyMDE3LTA5LTI2IGF0IDA2OjUxICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gT24g TW9uLCBTZXAgMjUsIDIwMTcgYXQgMDQ6MjA6MjBQTSArMDAwMCwgQmFydCBWYW4gQXNzY2hlIHdy b3RlOg0KPiA+IFNvIHRoYXQgbWVhbnMgdGhhdCB5b3UgaGF2ZSBub3Qgbm90aWNlZCB0aGF0IGl0 IGlzIHNhZmUgdG8gbGVhdmUgb3V0IHRoYXQNCj4gPiBzbXBfcm1wKCkgY2FsbCBiZWNhdXNlIGJs ay1tcSBxdWV1ZSBmcmVlemluZyBhbmQgdW5mcmVlemluZyB3YWl0cyBmb3IgYSBncmFjZQ0KPiA+ IHBlcmlvZCBhbmQgaGVuY2Ugd2FpdHMgdW50aWwgYWxsIENQVXMgaGF2ZSBleGVjdXRlZCBhIGZ1 bGwgbWVtb3J5IGJhcnJpZXI/DQo+IA0KPiBObywgbWVtb3J5IGJhcnJpZXIgaGFzIHRvIGJlIHBh aXIsIHRoaXMgYmFycmllciBoYXMgdG8gYmUgdGhlcmUsIGFub3RoZXINCj4gb25lIGJlZm9yZSB1 bmZyZWV6ZS9mcmVlemUgY2FuIGJlIHJlbW92ZWQgYmVjYXVzZSBpdCBpcyBpbXBsaWVkIGluc2lk ZQ0KPiBmcmVlemUvdW5mcmVlemUuDQo+IA0KPiBBY3R1YWxseSBpdCBzaG91bGQgaGF2ZSBiZWVu IHNtcF9tYigpIGJldHdlZW4gd3JpdGluZyB0aGUgcGVyY3B1LXJlZmNvdW50DQo+IGFuZCByZWFk aW5nIHByZWVtcHRfb25seSBmbGFnLCBvdGhlcndpc2UgaWYgdGhlIHR3byBvcCBpcyByZW9yZGVy ZWQsDQo+IHF1ZXVlIGZyZWV6ZS91bmZyZWV6ZSBtYXkgc2VlIHRoZSBjb3VudGVyIGlzIHplcm8s IGFuZCB0aGlzIG5vcm1hbCBJL08NCj4gc3RpbGwgY2FuIGJlIG9ic2VydmVkIGV2ZW4gYWZ0ZXIg cXVldWUgaXMgZnJlZXplZCBhbmQgU0NTSSBpcyBwdXQgaW50bw0KPiBxdWllc2NlZC4NCg0KVGhh dCdzIHdyb25nLiBCb3RoIG1lbW9yeSBiYXJyaWVycyBjYW4gYmUgbGVmdCBvdXQuIEZyZWV6aW5n ICsgdW5mcmVlemluZyBhDQpibG9jayBsYXllciBxdWV1ZSBjYXVzZXMgY2FsbF9yY3UoKSB0byBi ZSBpbnZva2VkIGFuZCBhbHNvIG1ha2VzIHRoZSBjb2RlDQp0aGF0IHBlcmZvcm1zIHRoZSBmcmVl emluZyArIHVuZnJlZXppbmcgdG8gd2FpdCB1bnRpbCBhIGdyYWNlIHBlcmlvZCBoYXMNCm9jY3Vy cmVkIG9uIGFsbCBDUFVzLiBJbiBvdGhlciB3b3JkcywgdW50aWwgYWxsIENQVXMgaGF2ZSBwZXJm b3JtZWQgYSBmdWxsDQptZW1vcnkgYmFycmllci4gVGhpcyBpcyB3aHkgYm90aCBtZW1vcnkgYmFy cmllcnMgY2FuIGJlIGxlZnQgb3V0LiBBIHF1b3RlDQpmcm9tICJUaGUgUkNVLWJhcnJpZXIgbWVu YWdlcmllIiAoVGhlIFJDVS1iYXJyaWVyIG1lbmFnZXJpZSk6DQoiVGhlcmUgYXJlIG1hbnkgaXNz dWVzIHdpdGggZXhjZXNzaXZlIHVzZSBvZiBtZW1vcnkgYmFycmllcnMsIG9uZSBvZiB3aGljaA0K aXMgdGhlaXIgb3ZlcmhlYWQuIEl0IHR1cm5zIG91dCB0aGF0IFJDVSBjYW4gYmUgc3Vic3RpdHV0 ZWQgZm9yIG1lbW9yeQ0KYmFycmllcnMgaW4gYSBncmVhdCBtYW55IGNhc2VzLCBhbmQgdGhpcyBz dWJzdGl0dXRpb24gYWxsb3dzIG9uZSBvZiB0aGUNCm1lbW9yeSBiYXJyaWVycyBvZiB0aGUgcGFp ciB0byBiZSByZW1vdmVkLiBVbmZvcnR1bmF0ZWx5LCBpbiBtb3N0IGNhc2VzLCB0aGUNCm90aGVy IG1lbW9yeSBiYXJyaWVyIG11c3QgYmUgcmVwbGFjZWQgYnkgYW4gZXhwZW5zaXZlIGdyYWNlLXBl cmlvZC13YWl0DQpwcmltaXRpdmUgc3VjaCBhcyBzeW5jaHJvbml6ZV9yY3UoKSwgYnV0IHRoZXJl IGFyZSBhIGZldyBzcGVjaWFsIGNhc2VzIHdoZXJlDQpzeW5jaHJvbml6ZV9yY3UoKSBpcyBub3Qg bmVlZGVkLiINCg0KQmFydC4=