Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx2.netapp.com ([216.240.18.37]:51270 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753054Ab2E0Qij (ORCPT ); Sun, 27 May 2012 12:38:39 -0400 From: "Myklebust, Trond" To: Peng Tao CC: "linux-nfs@vger.kernel.org" , Peng Tao Subject: Re: [PATCH 3/3] pnfsblock: bail out unaligned DIO Date: Sun, 27 May 2012 16:38:37 +0000 Message-ID: <1338136717.3044.13.camel@lade.trondhjem.org> References: <1338096780-2763-1-git-send-email-bergwolf@gmail.com> <1338096780-2763-4-git-send-email-bergwolf@gmail.com> In-Reply-To: <1338096780-2763-4-git-send-email-bergwolf@gmail.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gU3VuLCAyMDEyLTA1LTI3IGF0IDEzOjMzICswODAwLCBQZW5nIFRhbyB3cm90ZToNCj4gU2ln bmVkLW9mZi1ieTogUGVuZyBUYW8gPHRhby5wZW5nQGVtYy5jb20+DQo+IC0tLQ0KPiAgZnMvbmZz L2Jsb2NrbGF5b3V0L2Jsb2NrbGF5b3V0LmMgfCAgIDIwICsrKysrKysrKysrKysrKysrKysrDQo+ ICAxIGZpbGVzIGNoYW5nZWQsIDIwIGluc2VydGlvbnMoKyksIDAgZGVsZXRpb25zKC0pDQo+IA0K PiBkaWZmIC0tZ2l0IGEvZnMvbmZzL2Jsb2NrbGF5b3V0L2Jsb2NrbGF5b3V0LmMgYi9mcy9uZnMv YmxvY2tsYXlvdXQvYmxvY2tsYXlvdXQuYw0KPiBpbmRleCA1M2NiNDUwLi5jZGI4N2E5IDEwMDY0 NA0KPiAtLS0gYS9mcy9uZnMvYmxvY2tsYXlvdXQvYmxvY2tsYXlvdXQuYw0KPiArKysgYi9mcy9u ZnMvYmxvY2tsYXlvdXQvYmxvY2tsYXlvdXQuYw0KPiBAQCAtMTAwMCw3ICsxMDAwLDI3IEBAIHN0 YXRpYyBib29sIGJsX2Rpb19iZWdpbihzdHJ1Y3QgaW5vZGUgKmlub2RlLCBjb25zdCBzdHJ1Y3Qg aW92ZWMgKmlvdiwNCj4gIAkJCSB1bnNpZ25lZCBsb25nIG5yX3NlZ3MsIGxvZmZfdCBwb3MsDQo+ ICAJCQkgc3RydWN0IGJsa19wbHVnICpwbHVnKQ0KPiAgew0KPiArCXVuc2lnbmVkIGJsa21hc2sg PSBORlNfU0VSVkVSKGlub2RlKS0+cG5mc19ibGtzaXplIC0gMTsNCj4gKwlzaXplX3QgY291bnQ7 DQo+ICsJaW50IHNlZzsNCj4gKwl1bnNpZ25lZCBsb25nIGFkZHI7DQo+ICsNCj4gIAlibGtfc3Rh cnRfcGx1ZyhwbHVnKTsNCj4gKw0KPiArCS8qIE9ubHkgYWxsb3cgYmxrc2l6ZWQgRElPIGZvciBu b3cuDQo+ICsJICogSW4gdGhlb3J5IHdlIGNhbiBoYW5kbGUgcGFnZSBhbGlnbmVkIERJTyBpbiBj dXJyZW50IGJsb2NrIGxheW91dA0KPiArCSAqIHJlYWQvd3JpdGUgY29kZSwgYnV0IGl0IHdvdWxk IHJlcXVpcmUgc2VyaWFsaXphdGlvbiBiZXR3ZWVuDQo+ICsJICogY29uY3VycmVudCB3cml0ZXJz IGFuZCBpdCBpcyBmYXIgbGVzcyBlZmZlY2llbnQgdGhhbiBqdXN0IHNlbmQgSU8NCj4gKwkgKiB0 byBNRFMuDQo+ICsJICovDQo+ICsJaWYgKHBvcyAmIGJsa21hc2spDQo+ICsJCXJldHVybiBmYWxz ZTsNCj4gKwlmb3IgKHNlZyA9IDA7IHNlZyA8IG5yX3NlZ3M7IHNlZysrKSB7DQo+ICsJCWFkZHIg PSAodW5zaWduZWQgbG9uZylpb3Zbc2VnXS5pb3ZfYmFzZTsNCj4gKwkJY291bnQgPSBpb3Zbc2Vn XS5pb3ZfbGVuOw0KPiArCQlpZiAodW5saWtlbHkoKGFkZHIgJiBibGttYXNrKSB8fCAoY291bnQg JiBibGttYXNrKSkpDQo+ICsJCQlyZXR1cm4gZmFsc2U7DQo+ICsJfQ0KPiAgCXJldHVybiB0cnVl Ow0KPiAgfQ0KDQpBZ2FpbiwgdGhpcyBjYW4gYW5kIHNob3VsZCBnbyBpbiB0aGUgZXhpc3Rpbmcg bmZzX3BhZ2Vpb19vcHMgZWl0aGVyIGluDQp0aGUgcGdfaW5pdCBvciBpbiB0aGUgcGdfdGVzdC4N Cg0KQWxzbywgd2h5IGRvIHlvdSBjb25zaWRlciBpdCB0byBiZSBkaXJlY3QgaS9vIHNwZWNpZmlj PyBJZiB0aGUNCmFwcGxpY2F0aW9uIGlzIHVzaW5nIGJ5dGUgcmFuZ2UgbG9ja2luZywgYW5kIHRo ZSBsb2NrcyBhcmVuJ3QgcGFnZS9ibG9jaw0KYWxpZ25lZCB0aGVuIHlvdSBhcmUgaW4gdGhlIHNh bWUgcG9zaXRpb24gb2YgaGF2aW5nIHRvIGRlYWwgd2l0aCBwYXJ0aWFsDQpwYWdlIHdyaXRlcyBl dmVuIGluIHRoZSByZWFkL3dyaXRlIGZyb20gcGFnZSBjYWNoZSBzaXR1YXRpb24uDQoNCi0tIA0K VHJvbmQgTXlrbGVidXN0DQpMaW51eCBORlMgY2xpZW50IG1haW50YWluZXINCg0KTmV0QXBwDQpU cm9uZC5NeWtsZWJ1c3RAbmV0YXBwLmNvbQ0Kd3d3Lm5ldGFwcC5jb20NCg0K