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" , "hch@infradead.org" , "linux-block@vger.kernel.org" , "ming.lei@redhat.com" , "martin.petersen@oracle.com" , "axboe@kernel.dk" , "axboe@fb.com" Subject: Re: [PATCH V3 0/5] dm-rq: improve sequential I/O performance Date: Fri, 12 Jan 2018 23:42:25 +0000 Message-ID: <1515800544.2396.89.camel@wdc.com> References: <1515710256.2752.72.camel@sandisk.com> <20180112014232.GB25090@ming.t460p> <20180112015721.GB32298@redhat.com> <20180112033308.GC25090@ming.t460p> <20180112171840.GA4541@redhat.com> <1515778013.2396.3.camel@wdc.com> <20180112174000.GB5134@redhat.com> <1515779211.2396.11.camel@wdc.com> <20180112180635.GD5134@redhat.com> <1515783288.2396.37.camel@wdc.com> <20180112231708.GA6722@redhat.com> In-Reply-To: <20180112231708.GA6722@redhat.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: T24gRnJpLCAyMDE4LTAxLTEyIGF0IDE4OjE3IC0wNTAwLCBNaWtlIFNuaXR6ZXIgd3JvdGU6DQo+ IEBAIC0xNTcwLDcgKzE1NzAsMTAgQEAgc3RhdGljIGludCBtdWx0aXBhdGhfZW5kX2lvKHN0cnVj dCBkbV90YXJnZXQgKnRpLCBzdHJ1Y3QgcmVxdWVzdCAqY2xvbmUsDQo+ICAJaWYgKGVycm9yICYm IGJsa19wYXRoX2Vycm9yKGVycm9yKSkgew0KPiAgCQlzdHJ1Y3QgbXVsdGlwYXRoICptID0gdGkt PnByaXZhdGU7DQo+ICANCj4gLQkJciA9IERNX0VORElPX1JFUVVFVUU7DQo+ICsJCWlmIChyID09 IEJMS19TVFNfUkVTT1VSQ0UpDQo+ICsJCQlyID0gRE1fRU5ESU9fREVMQVlfUkVRVUVVRTsNCj4g KwkJZWxzZQ0KPiArCQkJciA9IERNX0VORElPX1JFUVVFVUU7DQoNCkRpZCB5b3UgcGVyaGFwcyBp bnRlbmQgImVycm9yID09IEJMS19TVFNfUkVTT1VSQ0UiPw0KDQo+IGRpZmYgLS1naXQgYS9pbmNs dWRlL2xpbnV4L2RldmljZS1tYXBwZXIuaCBiL2luY2x1ZGUvbGludXgvZGV2aWNlLW1hcHBlci5o DQo+IGluZGV4IDliYTg0NTMuLmRhODNmNjQgMTAwNjQ0DQo+IC0tLSBhL2luY2x1ZGUvbGludXgv ZGV2aWNlLW1hcHBlci5oDQo+ICsrKyBiL2luY2x1ZGUvbGludXgvZGV2aWNlLW1hcHBlci5oDQo+ IEBAIC01NTAsNiArNTUwLDcgQEAgc3RydWN0IGRtX3RhYmxlICpkbV9zd2FwX3RhYmxlKHN0cnVj dCBtYXBwZWRfZGV2aWNlICptZCwNCj4gICNkZWZpbmUgRE1fRU5ESU9fRE9ORQkJMA0KPiAgI2Rl ZmluZSBETV9FTkRJT19JTkNPTVBMRVRFCTENCj4gICNkZWZpbmUgRE1fRU5ESU9fUkVRVUVVRQky DQo+ICsjZGVmaW5lIERNX0VORElPX0RFTEFZX1JFUVVFVUUJMw0KPiAgDQo+ICAvKg0KPiAgICog RGVmaW5pdGlvbnMgb2YgcmV0dXJuIHZhbHVlcyBmcm9tIHRhcmdldCBtYXAgZnVuY3Rpb24uDQo+ IEBAIC01NTcsNyArNTU4LDcgQEAgc3RydWN0IGRtX3RhYmxlICpkbV9zd2FwX3RhYmxlKHN0cnVj dCBtYXBwZWRfZGV2aWNlICptZCwNCj4gICNkZWZpbmUgRE1fTUFQSU9fU1VCTUlUVEVECTANCj4g ICNkZWZpbmUgRE1fTUFQSU9fUkVNQVBQRUQJMQ0KPiAgI2RlZmluZSBETV9NQVBJT19SRVFVRVVF CURNX0VORElPX1JFUVVFVUUNCj4gLSNkZWZpbmUgRE1fTUFQSU9fREVMQVlfUkVRVUVVRQkzDQo+ ICsjZGVmaW5lIERNX01BUElPX0RFTEFZX1JFUVVFVUUJRE1fRU5ESU9fREVMQVlfUkVRVUVVRQ0K PiAgI2RlZmluZSBETV9NQVBJT19LSUxMCQk0DQo+ICANCj4gICNkZWZpbmUgZG1fc2VjdG9yX2Rp djY0KHgsIHkpKCBcDQoNClBsZWFzZSBjb25zaWRlciB0byBpbnRyb2R1Y2UgZW51bWVyYXRpb24g dHlwZXMgZm9yIHRoZSBETV9FTkRJT18qIGFuZCB0aGUNCkRNX01BUElPXyogY29uc3RhbnRzIHN1 Y2ggdGhhdCB0aGUgY29tcGlsZXIgY2FuIGNhdGNoIHdoYXQgSSByZXBvcnRlZCBhYm92ZS4NCk90 aGVyd2lzZSB0aGlzIHBhdGNoIGxvb2tzIGZpbmUgdG8gbWUuDQoNClRoYW5rcywNCg0KQmFydC4=