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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CD7CC433E0 for ; Mon, 15 Jun 2020 08:27:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46A6820714 for ; Mon, 15 Jun 2020 08:27:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728977AbgFOI13 (ORCPT ); Mon, 15 Jun 2020 04:27:29 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([146.101.78.151]:27205 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728729AbgFOI13 (ORCPT ); Mon, 15 Jun 2020 04:27:29 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-243-iJtaD7E4PGOFKa-5GEiBiQ-1; Mon, 15 Jun 2020 09:27:25 +0100 X-MC-Unique: iJtaD7E4PGOFKa-5GEiBiQ-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 15 Jun 2020 09:27:24 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Mon, 15 Jun 2020 09:27:24 +0100 From: David Laight To: 'Christian Brauner' , Kees Cook CC: Sargun Dhillon , Giuseppe Scrivano , Robert Sesek , Chris Palmer , Jann Horn , Greg Kroah-Hartman , "containers@lists.linux-foundation.org" , "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Matt Denton , Tejun Heo , Al Viro , "linux-fsdevel@vger.kernel.org" , "cgroups@vger.kernel.org" , "David S . Miller" Subject: RE: [PATCH v3 1/4] fs, net: Standardize on file_receive helper to move fds across processes Thread-Topic: [PATCH v3 1/4] fs, net: Standardize on file_receive helper to move fds across processes Thread-Index: AQHWP+BcCi14oegu0U6J73sUpcDiU6jTfHDAgACI+YCAAKH2YIAAp2qKgAQNYhA= Date: Mon, 15 Jun 2020 08:27:24 +0000 Message-ID: References: <202006092227.D2D0E1F8F@keescook> <20200610081237.GA23425@ircssh-2.c.rugged-nimbus-611.internal> <202006101953.899EFB53@keescook> <20200611100114.awdjswsd7fdm2uzr@wittgenstein> <20200611110630.GB30103@ircssh-2.c.rugged-nimbus-611.internal> <067f494d55c14753a31657f958cb0a6e@AcuMS.aculab.com> <202006111634.8237E6A5C6@keescook> <94407449bedd4ba58d85446401ff0a42@AcuMS.aculab.com> <20200612104629.GA15814@ircssh-2.c.rugged-nimbus-611.internal> <202006120806.E770867EF@keescook> <20200612182816.okwylihs6u6wkgxd@wittgenstein> In-Reply-To: <20200612182816.okwylihs6u6wkgxd@wittgenstein> Accept-Language: en-GB, en-US Content-Language: 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 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org RnJvbTogQ2hyaXN0aWFuIEJyYXVuZXINCj4gU2VudDogMTIgSnVuZSAyMDIwIDE5OjI4DQouLi4N Cj4gPiA+IAlpZiAoc2l6ZSA8IDMyKQ0KPiA+ID4gCQlyZXR1cm4gLUVJTlZBTDsNCj4gPiA+IAlp ZiAoc2l6ZSA+IFBBR0VfU0laRSkNCj4gPiA+IAkJcmV0dXJuIC1FMkJJRzsNCj4gPg0KPiA+IChU YW5nZXQ6IHdoYXQgd2FzIHRoZSByZWFzb24gZm9yIGNvcHlfc3RydWN0X2Zyb21fdXNlcigpIG5v dCBpbmNsdWRpbmcNCj4gPiB0aGUgbWluL21heCBjaGVjaz8gSSBoYXZlIGEgbWVtb3J5IG9mIEFs IG9iamVjdGluZyB0byBoYXZpbmcgYW4NCj4gPiAiaW50ZXJuYWwiIGxpbWl0PykNCj4gDQo+IEFs IGRpZG4ndCB3YW50IHRoZSBQQUdFX1NJWkUgbGltaXQgaW4gdGhlcmUgYmVjYXVzZSB0aGVyZSdz IG5vdGhpbmcNCj4gaW5oZXJlbnRseSB3cm9uZyB3aXRoIGNvcHlpbmcgaW5zYW5lIGFtb3VudHMg b2YgbWVtb3J5Lg0KDQpUaGUgcHJvYmxlbSBpcyByZWFsbHkgYWxsb3dpbmcgYSB1c2VyIHByb2Nl c3MgdG8gYWxsb2NhdGUNCnVuYm91bmRlZCBibG9ja3Mgb2YgbWVtb3J5LCBub3QgdGhlIGNvcHkg aXRzZWxmLg0KDQpUaGUgbGltaXQgZm9yIElPVygpIGV0YyBpcyAxNmsgLSBub3QgYSBwcm9ibGVt Lg0KSWYgYSAzMmJpdCBzaXplIGlzIHNldCB0byBqdXN0IHVuZGVyIDRHQiBzbyB5b3UgcmVhbGx5 IHdhbnQNCnRvIGFsbG9jYXRlIDRHQiBvZiBtZW1vcnkgdGhlbiBmaW5kIHRoZSByZXF1ZXN0IGlz IGdhcmJhZ2UuDQpTZWVtcyBsaWtlIGEgbmljZSBEb1MgYXR0YWNrLg0KQSA2NGJpdCBzaXplIGNh biBiZSB3b3JzZS4NCg0KUG90ZW50aWFsbHkgdGhlIGxpbWl0IHNob3VsZCBiZSBpbiBtZW1kdXBf dXNlcigpIGl0c2VsZi4NCkFuZCBwb3NzaWJseSBhbiBleHRyYSBwYXJhbWV0ZXIgZ2l2aW5nIGEg cGVyLWNhbGwgbG93ZXI/IGxpbWl0Lg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNz IExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAx UFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K