From mboxrd@z Thu Jan 1 00:00:00 1970 From: majianpeng Subject: Re: Re: [RFC PATCH V1] raid5: Add R5_ReadNoMerge flag which prevent bio from merging at block layer Date: Mon, 16 Jul 2012 14:57:31 +0800 Message-ID: <201207161457288909318@gmail.com> References: <201207131913329371733@gmail.com>, <20120716154822.2774ff5e@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 Return-path: Sender: linux-raid-owner@vger.kernel.org To: Neil Brown Cc: linux-raid List-Id: linux-raid.ids T24gMjAxMi0wNy0xNiAxMzo0OCBOZWlsQnJvd24gPG5laWxiQHN1c2UuZGU+IFdyb3RlOg0KPk9u IEZyaSwgMTMgSnVsIDIwMTIgMTk6MTM6MzUgKzA4MDAgbWFqaWFucGVuZyA8bWFqaWFucGVuZ0Bn bWFpbC5jb20+IHdyb3RlOg0KPg0KPj4gQmVjYXVzZSBiaW9zIHdpbGwgbWVyZ2UgYXQgYmxvY2st bGF5ZXIsc28gYmlvcy1lcnJvciBtYXkgY2F1c2VkIGJ5IG90aGVyDQo+PiBiaW8gd2hpY2ggYmUg bWVyZ2VkIGludG8gdG8gdGhlIHNhbWUgcmVxdWVzdC4NCj4+IFVzaW5nIHRoaXMgZmxhZyxpdCB3 aWxsIGZpbmQgZXhhY3RseSBlcnJvci1zZWN0b3IgYW5kIG5vdCBkbyByZWR1bmRhbnQNCj4+IG9w ZXJhdGlvbiBsaWtlIHJlLXdyaXRlIGFuZCByZS1yZWFkLg0KPj4gDQo+PiBWMC0+VjE6VXNpbmcg UkVRX0ZMVVNIIGluc3RlYWQgUkVRX05PTUVSR0UgYXZvaWQgYmlvIG1lcmdpbmcgYXQgYmxvY2sN Cj4+IGxheWVyLg0KPj4gDQo+PiBTaWduZWQtb2ZmLWJ5OiBKaWFucGVuZyBNYSA8bWFqaWFucGVu Z0BnbWFpbC5jb20+DQo+PiAtLS0NCj4+ICBkcml2ZXJzL21kL3JhaWQ1LmMgfCAgIDE0ICsrKysr KysrKysrKy0tDQo+PiAgZHJpdmVycy9tZC9yYWlkNS5oIHwgICAgMSArDQo+PiAgMiBmaWxlcyBj aGFuZ2VkLCAxMyBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQ0KPj4gDQpbc25pcF0NCj4N Cj5UaGFua3MsIEkndmUgYXBwbGllZCB0aGlzLg0KPg0KPldlIHNob3VsZCBwcm9iYWJseSBkbyBh IHNpbWlsYXIgdGhpbmcgaW4gZml4X3JlYWRfZXJyb3IgYW5kDQo+Zml4X3N5bmNfcmVhZF9lcnJv ciBpbiBSQUlEMSBhbmQgUkFJRDEwLi4uDQo+DQpUaGFua3MsIEknbGwgZG8gaXQuDQo+VGhhbmtz LA0KPk5laWxCcm93bg0KPg0KPg==