From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: Re: [PATCH 8/9] block: allow to allocate req with REQF_PREEMPT when queue is frozen Date: Fri, 1 Sep 2017 15:43:39 +0000 Message-ID: <1504280618.14386.16.camel@wdc.com> References: <20170831172728.15817-1-ming.lei@redhat.com> <20170831172728.15817-9-ming.lei@redhat.com> <1504219824.31872.74.camel@wdc.com> <20170901035537.GI16525@ming.t460p> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20170901035537.GI16525@ming.t460p> Content-Language: en-US Content-ID: <7DF4B0A7B9C01A4ABD352BD95BA345BA@namprd04.prod.outlook.com> Sender: linux-block-owner@vger.kernel.org To: "ming.lei@redhat.com" Cc: "linux-scsi@vger.kernel.org" , "hch@infradead.org" , "jejb@linux.vnet.ibm.com" , "linux-block@vger.kernel.org" , "oleksandr@natalenko.name" , "martin.petersen@oracle.com" , "axboe@fb.com" List-Id: linux-scsi@vger.kernel.org T24gRnJpLCAyMDE3LTA5LTAxIGF0IDExOjU1ICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gT24g VGh1LCBBdWcgMzEsIDIwMTcgYXQgMTA6NTA6MjVQTSArMDAwMCwgQmFydCBWYW4gQXNzY2hlIHdy b3RlOg0KPiA+IE9uIEZyaSwgMjAxNy0wOS0wMSBhdCAwMToyNyArMDgwMCwgTWluZyBMZWkgd3Jv dGU6DQo+ID4gPiBAQCAtMTQxMyw5ICsxNDE0LDE3IEBAIHN0YXRpYyBzdHJ1Y3QgcmVxdWVzdCAq YmxrX29sZF9nZXRfcmVxdWVzdChzdHJ1Y3QgcmVxdWVzdF9xdWV1ZSAqcSwNCj4gPiA+ICAJLyog Y3JlYXRlIGlvYyB1cGZyb250ICovDQo+ID4gPiAgCWNyZWF0ZV9pb19jb250ZXh0KGdmcF9tYXNr LCBxLT5ub2RlKTsNCj4gPiA+ICANCj4gPiA+IC0JcmV0ID0gYmxrX3F1ZXVlX2VudGVyKHEsICEo Z2ZwX21hc2sgJiBfX0dGUF9ESVJFQ1RfUkVDTEFJTSkpOw0KPiA+ID4gKwkvKg0KPiA+ID4gKwkg KiBXaGVuIHF1ZXVlIGlzIGZyb3plbiwgd2Ugc3RpbGwgbmVlZCB0byBhbGxvY2F0ZSByZXEgZm9y DQo+ID4gPiArCSAqIFJFUUZfUFJFRU1QVC4NCj4gPiA+ICsJICovDQo+ID4gPiArCWlmICgoZmxh Z3MgJiBCTEtfTVFfUkVRX1BSRUVNUFQpICYmIGJsa19xdWV1ZV9pc19mcm96ZW4ocSkpDQo+ID4g PiArCQlibGtfcXVldWVfZW50ZXJfbGl2ZShxKTsNCj4gPiA+ICsJZWxzZQ0KPiA+ID4gKwkJcmV0 ID0gYmxrX3F1ZXVlX2VudGVyKHEsICEoZ2ZwX21hc2sgJiBfX0dGUF9ESVJFQ1RfUkVDTEFJTSkp Ow0KPiA+IA0KPiA+IFNvcnJ5IGJ1dCBJIGRvdWJ0IHRoYXQgY2FsbGluZyBibGtfcXVldWVfZW50 ZXJfbGl2ZSgpIGZyb20gaW5zaWRlDQo+ID4gYmxrX29sZF9nZXRfcmVxdWVzdCgpIGlzIHNhZmUu IENhbGxpbmcgYmxrX3F1ZXVlX2VudGVyX2xpdmUoKSBpcyBvbmx5IHNhZmUNCj4gPiBiZWZvcmUg YSByZXF1ZXN0IHF1ZXVlIGhhcyBiZWVuIG1hcmtlZCBkZWFkLiBXaGF0IHByZXZlbnRzIGEga2Vy bmVsIHRocmVhZA0KPiA+IHRoYXQgaG9sZHMgYSByZWZlcmVuY2Ugb24gYSByZXF1ZXN0IHF1ZXVl IGFuZCB0aGF0IGlzIHJ1bm5pbmcgY29uY3VycmVudGx5DQo+ID4gd2l0aCBibGtfY2xlYW51cF9x dWV1ZSgpIHRvIGNhbGwgYmxrX29sZF9nZXRfcmVxdWVzdCgpIGFmdGVyIGEgcXVldWUgaGFzDQo+ ID4gYmVlbiBtYXJrZWQgZGVhZD8NCj4gDQo+IEkgaGF2ZSBzZW50IG9uZSBkZWx0YSBwYXRjaCBp biBsaXN0LCB3aGljaCB3aWxsIG9ubHkgY2FsbA0KPiBibGtfcXVldWVfZW50ZXJfbGl2ZSgpIGlm ZiBTQ1NJIGRldmljZSBpcyBpbiBRVUlFU0NFLg0KDQpUaGF0IHdvdWxkbid0IG1ha2UgdGhpcyBo YWNrIGxlc3MgdWdseS4NCg0KSXQgaXMgcG9zc2libGUgdG8gdHJpZ2dlciB0aGUgcnVubmluZyAt PiBxdWllc2NlIHN0YXRlIHRyYW5zaXRpb24gdGhyb3VnaA0KL3N5cy9jbGFzcy9zY3NpX2Rldmlj ZS8qL2RldmljZS9zdGF0ZSBhbmQgdGhlIHF1aWVzY2UgLT4gcmVtb3ZlZCB0cmFuc2l0aW9uDQp0 aHJvdWdoIC9zeXMvY2xhc3Mvc2NzaV9kZXZpY2UvKi9kZXZpY2UvZGVsZXRlLiBBbiBleGFtcGxl Og0KDQptb2Rwcm9iZSBzY3NpX2RlYnVnIGRlbGF5PTAgZGV2X3NpemVfbWI9MTYNCmxzc2NzaSB8 IGdyZXAgc2NzaV9kZWJ1Zw0KY2QgL3N5cy9jbGFzcy9zY3NpX2RldmljZS84OjA6MDowL2Rldmlj ZQ0KZWNobyBxdWllc2NlID4gc3RhdGUNCmVjaG8gMSA+IGRlbGV0ZQ0KDQpTbyB0aGUgY29kZSBm cm9tIHlvdXIgcGF0Y2ggOC85IGNhbiByYWNlIGFnYWluc3QgZGV2aWNlIHJlbW92YWwuDQoNCkkg dGhpbmsgd2UgbmVlZCBhIGJldHRlciBhcHByb2FjaCB0aGFuIHRoZSBSRVFfUFJFRU1QVCBoYWNr LiBIb3cgYWJvdXQNCmltcGxlbWVudGluZyByZXN1bWUgYXMgYSBjYWxsYmFjayBieSBhZGRpbmcg YW4gYWRkaXRpb25hbCBmdW5jdGlvbiBwb2ludGVyDQp0byBzdHJ1Y3QgcmVxdWVzdF9xdWV1ZSAv IHN0cnVjdCBibGtfbXFfb3BzIGluc3RlYWQgb2YgaW1wbGVtZW50aW5nIGl0IGFzDQphIHJlcXVl c3Q/IEZvciBTQ1NJIGRldmljZXMgcmFjZXMgb2YgcmVzdW1lIGFnYWluc3QgcmVtb3ZhbCBjYW4g ZS5nLiBiZQ0KaGFuZGxlZCBieSBjaGVja2luZyB0aGUgc2NzaV9kZXZpY2Vfc2V0X3N0YXRlKCkg cmV0dXJuIHZhbHVlLiBUaGF0IGZ1bmN0aW9uDQpuYW1lbHkgZG9lcyBub3QgYWxsb3cgdGhlIHJl bW92aW5nL3JlbW92ZWQgdG8gcnVubmluZyBzdGF0ZSB0cmFuc2l0aW9uLg0KDQpCYXJ0Lg==