From mboxrd@z Thu Jan 1 00:00:00 1970 From: majianpeng Subject: Re: Re: [PATCH 2/2] raid5: For write performance, remove REQ_SYNC when write was odirect. Date: Mon, 16 Jul 2012 15:11:29 +0800 Message-ID: <201207161511247039289@gmail.com> References: <201207160931507187344@gmail.com> <20120716154010.0ef12c57@notabene.brown> <201207161442513597497@gmail.com>, <20120716170717.5d5ee04c@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 Return-path: Sender: linux-fsdevel-owner@vger.kernel.org To: Neil Brown Cc: viro , linux-raid , linux-fsdevel List-Id: linux-raid.ids T24gMjAxMi0wNy0xNiAxNTowNyBOZWlsQnJvd24gPG5laWxiQHN1c2UuZGU+IFdyb3RlOg0KPk9u IE1vbiwgMTYgSnVsIDIwMTIgMTQ6NDI6NTQgKzA4MDAgbWFqaWFucGVuZyA8bWFqaWFucGVuZ0Bn bWFpbC5jb20+IHdyb3RlOg0KPg0KPj4gT24gMjAxMi0wNy0xNiAxMzo0MCBOZWlsQnJvd24gPG5l aWxiQHN1c2UuZGU+IFdyb3RlOg0KPj4gPk9uIE1vbiwgMTYgSnVsIDIwMTIgMDk6MzE6NTUgKzA4 MDAgbWFqaWFucGVuZyA8bWFqaWFucGVuZ0BnbWFpbC5jb20+IHdyb3RlOg0KPj4gPg0KW3NuaXBd DQo+PiA+IE5vcm1hbCAnc3luYycgcmVxdWVzdHMgdXNlIFdSSVRFX1NZTkMgd2hpY2ggaW5jbHVk ZXMgIlJFUV9OT0lETEUiIHdoaWNoIG1lYW5zDQo+PiA+ICAgLyogZG9uJ3QgYW50aWNpcGF0ZSBt b3JlIElPIGFmdGVyIHRoaXMgb25lICovDQo+PiA+IE9fRElSRUNUIHJlcXVlc3QgdXNlIFdSSVRF X09ESVJFQ1Qgd2hpY2ggZG9lcyBub3QgaW5jbHVkZSB0aGlzIGZsYWcuDQo+PiA+DQo+DQo+PiBV c2luZyBSRVFfTk9JREVMIHRvIGRpZmZlcmVuY2Ugb2RpcmVjdCBhbmQgc3luYy5XaHkgbm90IHVz aW5nOg0KPj4gICsJaWYgKGJpLT5iaV9ydyAmIFdSSVRFX09ESVJFQ1QpDQo+PiAgKwkJYmktPmJp X3J3ICY9IH5SRVFfU1lOQzsNCj4NCj5CZWNhdXNlIHRoYXQgY29kZSBpcyB3cm9uZy4gIFdSSVRF X09ESVJFQ1QgaXMgbm90IG9uZSBmbGFnLCBpdCBpcyB0d28gZmxhZ3MNCj4nb3InZWQgdG9nZXRo ZXIuICBTbyB0aGlzIGNvZGUgZG9lcyBub3QgZG8gd2hhdCB5b3UgZXhwZWN0Lg0KPg0KTm8sIEkg dXNlZCB0aG9zZSBjb2RlIHRlc3QgYW5kIGl0J3Mgb2suDQpUaGUgY29kZSB1c2VkICYgbm90ICYm Lg0KTWF5YmUgSSB3cm9uZz8NCj4NCj4+IA0KW3NuaXBd