From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: "snitzer@redhat.com" CC: "dm-devel@redhat.com" , "linux-block@vger.kernel.org" , "hare@suse.de" , "tom.leiming@gmail.com" , "djeffery@redhat.com" , "axboe@kernel.dk" Subject: Re: [for-4.16 PATCH v5 0/4] block/dm: allow DM to defer blk_register_queue() until ready Date: Mon, 15 Jan 2018 22:51:39 +0000 Message-ID: <1516056697.3951.30.camel@wdc.com> References: <20180112150606.6037-1-snitzer@redhat.com> <1516036612.10386.2.camel@wdc.com> <20180115221511.GA25858@redhat.com> In-Reply-To: <20180115221511.GA25858@redhat.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: T24gTW9uLCAyMDE4LTAxLTE1IGF0IDE3OjE1IC0wNTAwLCBNaWtlIFNuaXR6ZXIgd3JvdGU6DQo+ IHN5c2ZzIHdyaXRlIG9wIGNhbGxzIGtlcm5mc19mb3Bfd3JpdGUgd2hpY2ggdGFrZXM6DQo+IG9m LT5tdXRleCB0aGVuIGtuLT5jb3VudCMyMTMgKG5vIGlkZWEgd2hhdCB0aGF0IGlzKQ0KPiB0aGVu IHEtPnN5c2ZzX2xvY2sgKHZpYSBxdWV1ZV9hdHRyX3N0b3JlKQ0KPiANCj4gdnMgDQo+IA0KPiBi bGtfdW5yZWdpc3Rlcl9xdWV1ZSB0YWtlczoNCj4gcS0+c3lzZnNfbG9jayB0aGVuDQo+IGtlcm5m c19tdXRleCAodmlhIGtlcm5mc19yZW1vdmUpDQo+IHNlZW1zIGxvY2tkZXAgdGhpbmtzICJrZXJu ZnNfbXV0ZXgiIGlzICJrbi0+Y291bnQjMjEzIj8NCj4gDQo+IEZlZWxzIGxpa2UgbG9ja2RlcCBj b2RlIGluIGZzL2tlcm5mcy9maWxlLmMgYW5kIGZzL2tlcm5mcy9kaXIuYyBpcw0KPiB0cmlnZ2Vy aW5nIGZhbHNlIHBvc2l0aXZlcy4uIGJlY2F1c2UgdGhlc2Ugc2VlbSBsaWtlIGRpZmZlcmVudCBr ZXJuZnMNCj4gbG9ja3MgeWV0IHRoZXkgYXJlIHJlcG9ydGVkIGFzICJrbi0+Y291bnQjMjEzIi4N Cj4gDQo+IENlcnRhaW5seSBmZWVsaW5nIG91dCBvZiBteSBkZXB0aCB3aXRoIGtlcm5mcydzIGxv Y2tpbmcgdGhvdWdoLg0KDQpIZWxsbyBNaWtlLA0KDQpJIGRvbid0IHRoaW5rIHRoYXQgdGhpcyBp cyBhIGZhbHNlIHBvc2l0aXZlIGJ1dCByYXRoZXIgdGhlIGZvbGxvd2luZyB0cmFkaXRpb25hbA0K cGF0dGVybiBvZiBhIHBvdGVudGlhbCBkZWFkbG9jayBpbnZvbHZpbmcgc3lzZnMgYXR0cmlidXRl czoNCiogT25lIGNvbnRleHQgb2J0YWlucyBhIG11dGV4IGZyb20gaW5zaWRlIGEgc3lzZnMgYXR0 cmlidXRlIG1ldGhvZDoNCiAgcXVldWVfYXR0cl9zdG9yZSgpIG9idGFpbnMgcS0+c3lzZnNfbG9j ay4NCiogQW5vdGhlciBjb250ZXh0IHJlbW92ZXMgYSBzeXNmcyBhdHRyaWJ1dGUgd2hpbGUgaG9s ZGluZyBhIG11dGV4Og0KICBibGtfdW5yZWdpc3Rlcl9xdWV1ZSgpIHJlbW92ZXMgdGhlIHF1ZXVl IHN5c2ZzIGF0dHJpYnV0ZXMgd2hpbGUgaG9sZGluZw0KICBxLT5zeXNmc19sb2NrLg0KDQpUaGlz IGNhbiByZXN1bHQgaW4gYSByZWFsIGRlYWRsb2NrIGJlY2F1c2UgdGhlIGNvZGUgdGhhdCByZW1v dmVzIHN5c2ZzIG9iamVjdHMNCndhaXRzIHVudGlsIGFsbCBvbmdvaW5nIGF0dHJpYnV0ZSBjYWxs YmFja3MgaGF2ZSBmaW5pc2hlZC4NCg0KU2luY2UgY29tbWl0IDY2NzI1N2U4YjI5OCAoImJsb2Nr OiBwcm9wZXJseSBwcm90ZWN0IHRoZSAncXVldWUnIGtvYmogaW4NCmJsa191bnJlZ2lzdGVyX3F1 ZXVlIikgbW9kaWZpZWQgYmxrX3VucmVnaXN0ZXJfcXVldWUoKSBzdWNoIHRoYXQgcS0+c3lzZnNf bG9jaw0KaXMgaGVsZCBhcm91bmQgdGhlIGtvYmplY3RfZGVsKCZxLT5rb2JqKSBjYWxsIEkgdGhp bmsgdGhpcyBpcyBhIHJlZ3Jlc3Npb24NCmludHJvZHVjZWQgYnkgdGhhdCBjb21taXQuDQoNCkJh cnQu