From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97B71C433EF for ; Fri, 20 May 2022 22:08:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353790AbiETWIH (ORCPT ); Fri, 20 May 2022 18:08:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243602AbiETWIF (ORCPT ); Fri, 20 May 2022 18:08:05 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 24A8C195908 for ; Fri, 20 May 2022 15:08:04 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-266-ctS2yhHYNMyNXc6Epjlljw-1; Fri, 20 May 2022 23:08:00 +0100 X-MC-Unique: ctS2yhHYNMyNXc6Epjlljw-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.36; Fri, 20 May 2022 23:08:00 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.036; Fri, 20 May 2022 23:08:00 +0100 From: David Laight To: "'Jason A. Donenfeld'" CC: "viro@zeniv.linux.org.uk" , "linux-kernel@vger.kernel.org" , Jens Axboe Subject: RE: [PATCH] fs: prefer read_iter over read and write_iter over write Thread-Topic: [PATCH] fs: prefer read_iter over read and write_iter over write Thread-Index: AQHYbFCwvu9LSlrdFk+NviNR2+4IRK0nyjDggABuI4CAABnZcA== Date: Fri, 20 May 2022 22:08:00 +0000 Message-ID: <0da16e16caed4282ae97a86f1ba6f6db@AcuMS.aculab.com> References: <20220520135103.166972-1-Jason@zx2c4.com> <39ed6917f2e64a07bad8dad63f8dceb4@AcuMS.aculab.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogSmFzb24gQS4gRG9uZW5mZWxkDQo+IFNlbnQ6IDIwIE1heSAyMDIyIDIyOjMxDQo+IA0K PiBIaSBEYXZpZCwNCj4gDQo+IE9uIEZyaSwgTWF5IDIwLCAyMDIyIGF0IDA5OjI0OjUwUE0gKzAw MDAsIERhdmlkIExhaWdodCB3cm90ZToNCj4gPiBGcm9tOiBKYXNvbiBBLiBEb25lbmZlbGQNCj4g PiA+IFNlbnQ6IDIwIE1heSAyMDIyIDE0OjUxDQo+ID4gPg0KPiA+ID4gTW9zdCBrZXJuZWwgY29k ZSBwcmVmZXJzIHJlYWRfaXRlciBvdmVyIHJlYWQgYW5kIHdyaXRlX2l0ZXIgb3ZlciB3cml0ZSwN Cj4gPiA+IHlldCB0aGUgcmVhZCBmdW5jdGlvbiBwb2ludGVyIGlzIHRlc3RlZCBmaXJzdC4gUmV2 ZXJzZSB0aGVzZSBzbyB0aGF0IHRoZQ0KPiA+ID4gaXRlciBmdW5jdGlvbiBpcyBhbHdheXMgdXNl ZCBmaXJzdC4NCj4gPg0KPiA+IFRoZXJlIHdpbGwgYmUgYSBtZWFzdXJhYmxlIHBlcmZvcm1hbmNl IGhpdCBmb3IgdGhlIHh4eF9pdGVyIHZlcnNpb25zLg0KPiANCj4gSW5kZWVkLiBXZSBub3cgaGF2 ZSB0aGUgbWlzZm9ydHVuZSBvZiBhIDMlIGhpdCBvbiByYW5kb20uYywgcGVyIHRoaXMNCj4gc3Vi LXRocmVhZDoNCg0KSSB3cm90ZSB0aGF0IGEgZmV3IGhvdXJzIGFnbyBhbmQgZm9yZ290IHRvIHNl bmQgaXQgOi0oDQoNCj4gICAgaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvbGttbC9Zb2V5K0ZPWU82 OWxTNXFQQHp4MmM0LmNvbS8NCj4gDQo+IFRoZSBob3BlIGlzIHRoYXQgaXQgZXZlbnR1YWxseSBi ZWNvbWVzIGZhc3Rlci4uLiA6LVwNCg0KSSBzdXNwZWN0IGFsbCB0aGUgeHh4X2l0ZXIgZnVuY3Rp b25zIG5lZWQgb3B0aW1pc2luZyBmb3INCnRoZSBjb21tb24gY2FzZSBvZiBhIHNpbmdsZSBidWZm ZXIgaW4gdXNlcnNwYWNlLg0KDQpUaGF0IGFsc28gaW5jbHVkZXMgdGhlIGNvZGUgdG8gcmVhZCB0 aGUgaW92W10gZnJvbSB1c2VzcGFjZS4NCkF0IHRoZSBtb21lbnQgSSB0aGluayB0aGUgMzJiaXQg Y29tcGF0IGNvZGUgaXMgYWN0dWFsbHkNCmZhc3RlciB0aGFuIHRoZSBuYXRpdmUgYW1kNjQgdmVy c2lvbiENCkkndmUgd3JpdHRlbiBzb21lIHBhdGNoZXMgdG8gc3BlZWQgdGhhdCB1cC4NCkJ1dCB0 aGUgYmlnZ2VyIGltcHJvdmVtZW50cyBhbGwgaGl0IG1hc3NpdmUgY2hhbmdlcw0KdG8gdGhlIGlv cmluZyBjb2RlLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBC cmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdp c3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K