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=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 19BB6C433E2 for ; Fri, 4 Sep 2020 07:59:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E9F23206A5 for ; Fri, 4 Sep 2020 07:59:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729582AbgIDH7X (ORCPT ); Fri, 4 Sep 2020 03:59:23 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:31827 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726575AbgIDH7R (ORCPT ); Fri, 4 Sep 2020 03:59:17 -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-181-u9TZWDNaNCSHyguiU6M2MQ-1; Fri, 04 Sep 2020 08:59:13 +0100 X-MC-Unique: u9TZWDNaNCSHyguiU6M2MQ-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; Fri, 4 Sep 2020 08:59:12 +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; Fri, 4 Sep 2020 08:59:12 +0100 From: David Laight To: 'Linus Torvalds' CC: Christoph Hellwig , Al Viro , "Michael Ellerman" , "x86@kernel.org" , "Alexey Dobriyan" , Luis Chamberlain , "Kees Cook" , "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" Subject: RE: [PATCH 12/14] x86: remove address space overrides using set_fs() Thread-Topic: [PATCH 12/14] x86: remove address space overrides using set_fs() Thread-Index: AQHWggEOyEQXa7QqyE6TJTq6U2S8aalXbNZggAARhwCAAJziAA== Date: Fri, 4 Sep 2020 07:59:12 +0000 Message-ID: <4ec56728ace54dd081f02a6c0f32f781@AcuMS.aculab.com> References: <20200903142242.925828-1-hch@lst.de> <20200903142242.925828-13-hch@lst.de> <9ab40244a2164f7db2ff0c1d23ab59a0@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: 0.001 X-Mimecast-Originator: aculab.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Content-Language: en-US Sender: linux-arch-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMDQgU2VwdGVtYmVyIDIwMjAgMDA6MjYNCj4g DQo+IE9uIFRodSwgU2VwIDMsIDIwMjAgYXQgMjozMCBQTSBEYXZpZCBMYWlnaHQgPERhdmlkLkxh aWdodEBhY3VsYWIuY29tPiB3cm90ZToNCj4gPg0KPiA+IEEgbm9uLWNhbm9uaWNhbCAoaXMgdGhh dCB0aGUgcmlnaHQgdGVybSkgYWRkcmVzcyBiZXR3ZWVuIHRoZSBoaWdoZXN0DQo+ID4gdmFsaWQg dXNlciBhZGRyZXNzIGFuZCB0aGUgbG93ZXN0IHZhbGlkIGtlcm5lbCBhZGRyZXNzICg3ZmZlIHRv IGZmZmU/KQ0KPiA+IHdpbGwgZmF1bHQgYW55d2F5Lg0KPiANCj4gWWVzLg0KPiANCj4gQnV0IHdl IGFjdHVhbGx5IHdhcm4gYWdhaW5zdCB0aGF0IGZhdWx0LCBiZWNhdXNlIGl0J3MgYmVlbiBhIGdv b2Qgd2F5DQo+IHRvIGNhdGNoIHBsYWNlcyB0aGF0IGRpZG4ndCB1c2UgdGhlIHByb3BlciAiYWNj ZXNzX29rKCkiIHBhdHRlcm4uDQo+IA0KPiBTZWUgZXhfaGFuZGxlcl91YWNjZXNzKCkgYW5kIHRo ZQ0KPiANCj4gICAgICAgICBXQVJOX09OQ0UodHJhcG5yID09IFg4Nl9UUkFQX0dQLCAiR2VuZXJh bCBwcm90ZWN0aW9uIGZhdWx0IGluDQo+IHVzZXIgYWNjZXNzLiBOb24tY2Fub25pY2FsIGFkZHJl c3M/Iik7DQo+IA0KPiB3YXJuaW5nLiBJdCdzIGJlZW4gZ29vZCBmb3IgcmFuZG9taXplZCB0ZXN0 aW5nIC0gYSBtaXNzaW5nIHJhbmdlIGNoZWNrDQo+IG9uIGEgdXNlciBhZGRyZXNzIHdpbGwgb2Z0 ZW4gaGl0IHRoaXMuDQo+IA0KPiBPZiBjb3Vyc2UsIHlvdSBzaG91bGQgbmV2ZXIgc2VlIGl0IGlu IHJlYWwgbGlmZSAoYW5kIGhvcGVmdWxseSBub3QgaW4NCj4gdGVzdGluZyBlaXRoZXIgYW55IG1v cmUpLiBCdXQgYmVsdC1hbmQtc3VzcGVuZGVycy4uDQoNClRoYXQgY291bGQgc3RpbGwgYmUgZWZm ZWN0aXZlLCBqdXN0IHBpY2sgYW4gYWRkcmVzcyBsaW1pdCB0aGF0IGlzDQphcHByb3ByaWF0ZSBm b3IgdGhlIG9uZSBhY2Nlc3Nfb2soKSBpcyB1c2luZy4NCg0KRXZlbiBpZiBhY2Nlc3Nfb2soKSB1 c2VzIDE8PDYzIHRoZXJlIGFyZSBwbGVudHkgb2YgYWRkcmVzc2VzIGFib3ZlIGl0IHRoYXQgZmF1 bHQuDQpCdXQgdGhlIHVwcGVyIGxpbWl0IGZvciA1LWxldmVsIHBhZ2UgdGFibGVzIGNvdWxkIGJl IHVzZWQgYWxsIHRoZSB0aW1lLg0KDQpPbmUgb3B0aW9uIGlzIHRvIHRlc3QgJyhhZGRyZXNzIHwg bGVuZ3RoKSA8ICgzPDw2MiknIGluIGFjY2Vzc19vaygpLg0KVGhhdCBpcyBhbHNvIG1vZGVyYXRl bHkgc3VpdGFibGUgZm9yIG1hc2tpbmcgaW52YWxpZCBhZGRyZXNzZXMgdG8gMC4NCg0KCURhdmlk DQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBG YXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2 IChXYWxlcykNCg==