From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from esa3.hgst.iphmx.com ([216.71.153.141]:23123 "EHLO esa3.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751390AbdKADyM (ORCPT ); Tue, 31 Oct 2017 23:54:12 -0400 From: Bart Van Assche To: "ming.lei@redhat.com" CC: "hch@infradead.org" , "roman.penyaev@profitbricks.com" , "linux-block@vger.kernel.org" , "osandov@fb.com" , "axboe@fb.com" , "hare@suse.com" Subject: Re: [PATCH V2 0/2] block: remove unnecessary RESTART Date: Wed, 1 Nov 2017 03:54:09 +0000 Message-ID: <1509508448.2604.4.camel@wdc.com> References: <20171027044330.11921-1-ming.lei@redhat.com> <1509079996.3244.3.camel@wdc.com> <20171027053834.GA12858@ming.t460p> <1509395096.27259.15.camel@wdc.com> <20171031014728.GA12070@ming.t460p> In-Reply-To: <20171031014728.GA12070@ming.t460p> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org T24gVHVlLCAyMDE3LTEwLTMxIGF0IDA5OjQ3ICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gT24g TW9uLCBPY3QgMzAsIDIwMTcgYXQgMDg6MjQ6NTdQTSArMDAwMCwgQmFydCBWYW4gQXNzY2hlIHdy b3RlOg0KPiA+IE9uIEZyaSwgMjAxNy0xMC0yNyBhdCAxMzozOCArMDgwMCwgTWluZyBMZWkgd3Jv dGU6DQo+ID4gPiBPbiBGcmksIE9jdCAyNywgMjAxNyBhdCAwNDo1MzoxOEFNICswMDAwLCBCYXJ0 IFZhbiBBc3NjaGUgd3JvdGU6DQo+ID4gPiA+IE9uIEZyaSwgMjAxNy0xMC0yNyBhdCAxMjo0MyAr MDgwMCwgTWluZyBMZWkgd3JvdGU6DQo+ID4gPiA+ID4gVGhlIDFzdCBwYXRjaCByZW1vdmVzIHRo ZSBSRVNUQVJUIGZvciBUQUctU0hBUkVEIGJlY2F1c2UgU0NTSSBoYW5kbGVzIGl0DQo+ID4gPiA+ ID4gYnkgaXRzZWxmLCBhbmQgbm90IG5lY2Vzc2FyeSB0byB3YXN0ZSBDUFUgdG8gZG8gdGhlIGV4 cGVuc2l2ZSBSRVNUQVJULg0KPiA+ID4gPiA+IEFuZCBSb21hbiBQZW4gcmVwb3J0ZWQgdGhhdCB0 aGlzIFJFU1RBUlQgY3V0cyBoYWxmIG9mIElPUFMgaW4gaGlzIGNhc2UuDQo+ID4gPiA+ID4gDQo+ ID4gPiA+ID4gVGhlIDJuZCBwYXRjaCByZW1vdmVzIHRoZSBSRVNUQVJUIHdoZW4gLmdldF9idWRn ZXQgcmV0dXJucyBCTEtfU1RTX1JFU09VUkNFLA0KPiA+ID4gPiA+IGFuZCB0aGlzIFJFU1RBUlQg aXMgaGFuZGxlZCBieSBTQ1NJJ3MgUkVTVEFSVChzY3NpX2VuZF9yZXF1ZXN0KCkpIHRvby4NCj4g PiA+ID4gDQo+ID4gPiA+IFRoZXJlIGFyZSBtb3JlIGJsb2NrIGRyaXZlcnMgdGhhbiB0aGUgU0NT SSBjb3JlIHRoYXQgc2hhcmUgdGFncy4gSWYgdGhlDQo+ID4gPiANCj4gPiA+IENvdWxkIHlvdSBz aGFyZSB1cyB3aGF0IHRoZSBvdGhlciBpbi10cmVlIGRyaXZlciB3aGljaCBzaGFyZSB0YWdzIGlz Pw0KPiA+IA0KPiA+IEkgdGhpbmsgdGhlIGZvbGxvd2luZyBpbi10cmVlIGRyaXZlcnMgc3VwcG9y dCBzaGFyZWQgdGFncyAoaW4gYWxwaGFiZXRpY2FsDQo+ID4gb3JkZXIpOg0KPiA+ICogbnVsbF9i bGsuIFNlZSBhbHNvIHRoZSBzaGFyZWRfdGFncyBrZXJuZWwgbW9kdWxlIHBhcmFtZXRlci4NCj4g PiAqIG52bWUuIFNlZSBhbHNvIG52bWVfYWxsb2NfbnMoKS4NCj4gPiAqIHNjc2ktbXEuDQo+IA0K PiBGb3IgYm90aCBudWxsX2JsayBhbmQgbnZtZSwgd2UgZG9uJ3QgbmVlZCB0byBkZWFsIHdpdGgg Y3Jvc3MtcXVldWUgUkVTVEFSVCwNCj4gYmVjYXVzZSBCTEtfTVFfU19UQUdfV0FJVElORyBoYXMg aGFuZGxlZCBpdCBhbHJlYWR5Lg0KDQpibGtfbXFfZGlzcGF0Y2hfd2FpdF9hZGQoKSByZXR1cm5z IGltbWVkaWF0ZWx5IGlmIEJMS19NUV9TX1RBR19XQUlUSU5HIGlzDQphbHJlYWR5IHNldC4gQXJl IHlvdSByZWFsbHkgc3VyZSB0aGF0IHJlbW92aW5nIHRoZSByZXN0YXJ0IG1lY2hhbmlzbSBkb2Vz bid0DQpicmVhayB0aGUgTlZNZSBkcml2ZXIgaWYgdGhlcmUgYXJlIG11bHRpcGxlIG5hbWVzcGFj ZXM/DQoNCkJhcnQu