From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bart Van Assche To: "axboe@kernel.dk" CC: "hch@lst.de" , "linux-block@vger.kernel.org" , "mst@redhat.com" , "stable@vger.kernel.org" , "dann.frazier@canonical.com" Subject: Re: [PATCH v2] virtio_blk: Fix an SG_IO regression Date: Thu, 26 Oct 2017 04:44:26 +0000 Message-ID: <1508993064.8734.5.camel@wdc.com> References: <20171025095617.7315-1-bart.vanassche@wdc.com> <11a35a46-dc51-c32f-cb64-793d9dd02c53@kernel.dk> <1508959556.5073.1.camel@wdc.com> <83926138-e6aa-6792-5275-31f5c1330c90@kernel.dk> In-Reply-To: <83926138-e6aa-6792-5275-31f5c1330c90@kernel.dk> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: T24gV2VkLCAyMDE3LTEwLTI1IGF0IDEyOjM0IC0wNzAwLCBKZW5zIEF4Ym9lIHdyb3RlOg0KPiBP biAxMC8yNS8yMDE3IDEyOjI1IFBNLCBCYXJ0IFZhbiBBc3NjaGUgd3JvdGU6DQo+ID4gT24gV2Vk LCAyMDE3LTEwLTI1IGF0IDExOjIzIC0wNzAwLCBKZW5zIEF4Ym9lIHdyb3RlOg0KPiA+ID4gT24g MTAvMjUvMjAxNyAwMjo1NiBBTSwgQmFydCBWYW4gQXNzY2hlIHdyb3RlOg0KPiA+ID4gPiBBdm9p ZCB0aGF0IHN1Ym1pdHRpbmcgYW4gU0dfSU8gaW9jdGwgdHJpZ2dlcnMgYSBrZXJuZWwgb29wcyB0 aGF0DQo+ID4gPiA+IGlzIHByZWNlZGVkIGJ5Og0KPiA+ID4gPiANCj4gPiA+ID4gdXNlcmNvcHk6 IGtlcm5lbCBtZW1vcnkgb3ZlcndyaXRlIGF0dGVtcHQgZGV0ZWN0ZWQgdG8gKG51bGwpICg8bnVs bD4pICg2IGJ5dGVzKQ0KPiA+ID4gPiBrZXJuZWwgQlVHIGF0IG1tL3VzZXJjb3B5LmM6NzIhDQo+ ID4gPiANCj4gPiA+IFNlZW1zIEkgc2F3IGEgbm90ZSBvbiBhIHJ1bnRpbWUgb29wcyB0cmlnZ2Vy ZWQgYnkgdGhpcyBwYXRjaCB5ZXN0ZXJkYXksDQo+ID4gPiBidXQgbm93IEkgY2FuJ3Qgc2VlbSB0 byBmaW5kIGl0Li4uIERpZCB5b3Ugc2VlIGl0Pw0KPiA+IA0KPiA+IERvIHlvdSBwZXJoYXBzIHdh bnQgbWUgdG8gYWRkIHRoZSBzdGFjayB0cmFjZSBmcm9tIHRoZSBmb2xsb3dpbmcgZS1tYWlsIHRv DQo+ID4gdGhlIHBhdGNoIGRlc2NyaXB0aW9uOiBodHRwczovL21hcmMuaW5mby8/bD1saW51eC1h cm0ta2VybmVsJm09MTUwODU0MDEwMzIxODMzID8NCj4gDQo+IEl0IHdhcyBhbiBvb3BzIHJlcG9y dGVkIGFnYWluc3QgdGhlIGN1cnJlbnQgcGF0Y2gsIHVubGVzcyBJJ20gbWlzdGFrZW4uIEhhcmQN Cj4gdG8gc2F5LCB3aGVuIEkgY2FuJ3QgZmluZCB0aGUgZW1haWwgdGhpcyBtb3JuaW5nLCBtYXkg aGF2ZSBiZWVuIGRlbGV0ZWQuLi4NCj4gVGhhdCdzIHdoeSBJIGFza2VkIGlmIHlvdSBzYXcgaXQu DQoNCkp1c3QgZm91bmQgaXQ6IGE1NzA4NDNlZTkgKCJ2aXJ0aW9fYmxrOiBGaXggYW4gU0dfSU8g cmVncmVzc2lvbiIpOiBrZXJuZWwgQlVHIGF0DQppbmNsdWRlL2xpbnV4L3NjYXR0ZXJsaXN0Lmg6 OTIhIChodHRwczovL2xrbWwub3JnL2xrbWwvMjAxNy8xMC8yNC8xMTE3KS4gV2lsbCBoYXZlDQph IGxvb2suDQoNCkJhcnQuDQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from esa4.hgst.iphmx.com ([216.71.154.42]:14393 "EHLO esa4.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751523AbdJZEos (ORCPT ); Thu, 26 Oct 2017 00:44:48 -0400 From: Bart Van Assche To: "axboe@kernel.dk" CC: "hch@lst.de" , "linux-block@vger.kernel.org" , "mst@redhat.com" , "stable@vger.kernel.org" , "dann.frazier@canonical.com" Subject: Re: [PATCH v2] virtio_blk: Fix an SG_IO regression Date: Thu, 26 Oct 2017 04:44:26 +0000 Message-ID: <1508993064.8734.5.camel@wdc.com> References: <20171025095617.7315-1-bart.vanassche@wdc.com> <11a35a46-dc51-c32f-cb64-793d9dd02c53@kernel.dk> <1508959556.5073.1.camel@wdc.com> <83926138-e6aa-6792-5275-31f5c1330c90@kernel.dk> In-Reply-To: <83926138-e6aa-6792-5275-31f5c1330c90@kernel.dk> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <5B4FE37A5B587F4D9E55748B3CCBE908@namprd04.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org List-ID: T24gV2VkLCAyMDE3LTEwLTI1IGF0IDEyOjM0IC0wNzAwLCBKZW5zIEF4Ym9lIHdyb3RlOg0KPiBP biAxMC8yNS8yMDE3IDEyOjI1IFBNLCBCYXJ0IFZhbiBBc3NjaGUgd3JvdGU6DQo+ID4gT24gV2Vk LCAyMDE3LTEwLTI1IGF0IDExOjIzIC0wNzAwLCBKZW5zIEF4Ym9lIHdyb3RlOg0KPiA+ID4gT24g MTAvMjUvMjAxNyAwMjo1NiBBTSwgQmFydCBWYW4gQXNzY2hlIHdyb3RlOg0KPiA+ID4gPiBBdm9p ZCB0aGF0IHN1Ym1pdHRpbmcgYW4gU0dfSU8gaW9jdGwgdHJpZ2dlcnMgYSBrZXJuZWwgb29wcyB0 aGF0DQo+ID4gPiA+IGlzIHByZWNlZGVkIGJ5Og0KPiA+ID4gPiANCj4gPiA+ID4gdXNlcmNvcHk6 IGtlcm5lbCBtZW1vcnkgb3ZlcndyaXRlIGF0dGVtcHQgZGV0ZWN0ZWQgdG8gKG51bGwpICg8bnVs bD4pICg2IGJ5dGVzKQ0KPiA+ID4gPiBrZXJuZWwgQlVHIGF0IG1tL3VzZXJjb3B5LmM6NzIhDQo+ ID4gPiANCj4gPiA+IFNlZW1zIEkgc2F3IGEgbm90ZSBvbiBhIHJ1bnRpbWUgb29wcyB0cmlnZ2Vy ZWQgYnkgdGhpcyBwYXRjaCB5ZXN0ZXJkYXksDQo+ID4gPiBidXQgbm93IEkgY2FuJ3Qgc2VlbSB0 byBmaW5kIGl0Li4uIERpZCB5b3Ugc2VlIGl0Pw0KPiA+IA0KPiA+IERvIHlvdSBwZXJoYXBzIHdh bnQgbWUgdG8gYWRkIHRoZSBzdGFjayB0cmFjZSBmcm9tIHRoZSBmb2xsb3dpbmcgZS1tYWlsIHRv DQo+ID4gdGhlIHBhdGNoIGRlc2NyaXB0aW9uOiBodHRwczovL21hcmMuaW5mby8/bD1saW51eC1h cm0ta2VybmVsJm09MTUwODU0MDEwMzIxODMzID8NCj4gDQo+IEl0IHdhcyBhbiBvb3BzIHJlcG9y dGVkIGFnYWluc3QgdGhlIGN1cnJlbnQgcGF0Y2gsIHVubGVzcyBJJ20gbWlzdGFrZW4uIEhhcmQN Cj4gdG8gc2F5LCB3aGVuIEkgY2FuJ3QgZmluZCB0aGUgZW1haWwgdGhpcyBtb3JuaW5nLCBtYXkg aGF2ZSBiZWVuIGRlbGV0ZWQuLi4NCj4gVGhhdCdzIHdoeSBJIGFza2VkIGlmIHlvdSBzYXcgaXQu DQoNCkp1c3QgZm91bmQgaXQ6IGE1NzA4NDNlZTkgKCJ2aXJ0aW9fYmxrOiBGaXggYW4gU0dfSU8g cmVncmVzc2lvbiIpOiBrZXJuZWwgQlVHIGF0DQppbmNsdWRlL2xpbnV4L3NjYXR0ZXJsaXN0Lmg6 OTIhIChodHRwczovL2xrbWwub3JnL2xrbWwvMjAxNy8xMC8yNC8xMTE3KS4gV2lsbCBoYXZlDQph IGxvb2suDQoNCkJhcnQuDQo=