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 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 D44D9C433E2 for ; Wed, 2 Sep 2020 15:38:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCD7F20678 for ; Wed, 2 Sep 2020 15:38:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726623AbgIBPDq (ORCPT ); Wed, 2 Sep 2020 11:03:46 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:24181 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728043AbgIBPCc (ORCPT ); Wed, 2 Sep 2020 11:02:32 -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-288-m2mOhcL7OFeLx9bWhCsspw-1; Wed, 02 Sep 2020 16:02:01 +0100 X-MC-Unique: m2mOhcL7OFeLx9bWhCsspw-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; Wed, 2 Sep 2020 16:02:00 +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; Wed, 2 Sep 2020 16:02:00 +0100 From: David Laight To: 'Christophe Leroy' , 'Christoph Hellwig' CC: Linus Torvalds , Al Viro , Michael Ellerman , "x86@kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , Kees Cook , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH 10/10] powerpc: remove address space overrides using set_fs() Thread-Topic: [PATCH 10/10] powerpc: remove address space overrides using set_fs() Thread-Index: AQHWgSXGxcHfrrTX9UCmYjSyVg3SwKlVUsKA///zAICAABMqAP//+kwAgAAcsTA= Date: Wed, 2 Sep 2020 15:02:00 +0000 Message-ID: <1599b80426ec4759b5c1beb9d9543fdc@AcuMS.aculab.com> References: <20200827150030.282762-1-hch@lst.de> <20200827150030.282762-11-hch@lst.de> <8974838a-a0b1-1806-4a3a-e983deda67ca@csgroup.eu> <20200902123646.GA31184@lst.de> <61b9a880a6424a34b841cf3dddb463ad@AcuMS.aculab.com> <8de54fe0-4be9-5624-dd1d-d95d792e933d@csgroup.eu> <0c298e0d972a48bd9ee178225e404b12@AcuMS.aculab.com> <6e88048a-8b30-400e-11c6-8d91ba77cbb0@csgroup.eu> In-Reply-To: <6e88048a-8b30-400e-11c6-8d91ba77cbb0@csgroup.eu> 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 RnJvbTogQ2hyaXN0b3BoZSBMZXJveQ0KPiBTZW50OiAwMiBTZXB0ZW1iZXIgMjAyMCAxNToxMw0K PiANCj4gDQo+IExlIDAyLzA5LzIwMjAgw6AgMTU6NTEsIERhdmlkIExhaWdodCBhIMOpY3JpdMKg Og0KPiA+IEZyb206IENocmlzdG9waGUgTGVyb3kNCj4gPj4gU2VudDogMDIgU2VwdGVtYmVyIDIw MjAgMTQ6MjUNCj4gPj4gTGUgMDIvMDkvMjAyMCDDoCAxNToxMywgRGF2aWQgTGFpZ2h0IGEgw6lj cml0wqA6DQo+ID4+PiBGcm9tOiBDaHJpc3RvcGggSGVsbHdpZw0KPiA+Pj4+IFNlbnQ6IDAyIFNl cHRlbWJlciAyMDIwIDEzOjM3DQo+ID4+Pj4NCj4gPj4+PiBPbiBXZWQsIFNlcCAwMiwgMjAyMCBh dCAwODoxNToxMkFNICswMjAwLCBDaHJpc3RvcGhlIExlcm95IHdyb3RlOg0KPiA+Pj4+Pj4gLQkJ cmV0dXJuIDA7DQo+ID4+Pj4+PiAtCXJldHVybiAoc2l6ZSA9PSAwIHx8IHNpemUgLSAxIDw9IHNl Zy5zZWcgLSBhZGRyKTsNCj4gPj4+Pj4+ICsJaWYgKGFkZHIgPj0gVEFTS19TSVpFX01BWCkNCj4g Pj4+Pj4+ICsJCXJldHVybiBmYWxzZTsNCj4gPj4+Pj4+ICsJaWYgKHNpemUgPT0gMCkNCj4gPj4+ Pj4+ICsJCXJldHVybiBmYWxzZTsNCj4gPj4+Pj4NCj4gPj4+Pj4gX19hY2Nlc3Nfb2soKSB3YXMg cmV0dXJuaW5nIHRydWUgd2hlbiBzaXplID09IDAgdXAgdG8gbm93LiBBbnkgcmVhc29uIHRvDQo+ ID4+Pj4+IHJldHVybiBmYWxzZSBub3cgPw0KPiA+Pj4+DQo+ID4+Pj4gTm8sIHRoaXMgaXMgYWNj aWRlbnRhbCBhbmQgYnJva2VuLiAgQ2FuIHlvdSByZS1ydW4geW91ciBiZW5jaG1hcmsgd2l0aA0K PiA+Pj4+IHRoaXMgZml4ZWQ/DQo+ID4+Pg0KPiA+Pj4gSXMgVEFTS19TSVpFX01BU0sgZGVmaW5l ZCBzdWNoIHRoYXQgeW91IGNhbiBkbzoNCj4gPj4+DQo+ID4+PiAJcmV0dXJuIChhZGRyIHwgc2l6 ZSkgPCBUQVNLX1NJWkVfTUFYKSB8fCAhc2l6ZTsNCj4gPj4NCj4gPj4gVEFTS19TSVpFX01BWCB3 aWxsIHVzdWFsbHkgYmUgMHhjMDAwMDAwMA0KPiA+Pg0KPiA+PiBXaXRoOg0KPiA+PiBhZGRyID0g MHg4MDAwMDAwMDsNCj4gPj4gc2l6ZSA9IDB4ODAwMDAwMDA7DQo+ID4+DQo+ID4+IEkgZXhwZWN0 IGl0IHRvIGZhaWwgLi4uLg0KPiA+Pg0KPiA+PiBXaXRoIHRoZSBmb3JtdWxhIHlvdSBwcm9wb3Nl IGl0IHdpbGwgc3VjY2VlZCwgd29uJ3QgaXQgPw0KPiA+DQo+ID4gSG1tbS4uLiBXYXMgaSBnZXR0 aW5nIGNvbmZ1c2VkIGFib3V0IHNvbWUgY29tbWVudHMgZm9yIDY0Yml0DQo+ID4gYWJvdXQgdGhl cmUgYmVpbmcgc3VjaCBhIGJpZyBob2xlIGJldHdlZW4gdmFsaWQgdXNlciBhbmQga2VybmVsDQo+ ID4gYWRkcmVzc2VzIHRoYXQgaXQgd2FzIGVub3VnaCB0byBjaGVjayB0aGF0ICdzaXplIDwgVEFT S19TSVpFX01BWCcuDQo+ID4NCj4gPiBUaGF0IHdvdWxkIGJlIHRydWUgZm9yIDY0Yml0IHg4NiAo YW5kIHByb2JhYmx5IHBwYyAoJiBhcm0/PykpDQo+ID4gaWYgVEFTS19TSVpFX01BWCB3ZXJlIDB4 NCA8PCA2MC4NCj4gPiBJSVVDIHRoZSBoaWdoZXN0IHVzZXIgYWRkcmVzcyBpcyAobXVjaCkgbGVz cyB0aGFuIDB4MCA8PCA2MA0KPiA+IGFuZCB0aGUgbG93ZXN0IGtlcm5lbCBhZGRyZXNzIChtdWNo KSBncmVhdGVyIHRoYW4gMHhmIDw8IDYwDQo+ID4gb24gYWxsIHRoZXNlIDY0Yml0IHBsYXRmb3Jt cy4NCj4gPg0KPiA+IEFjdHVhbGx5IGlmIGRvaW5nIGFjY2Vzc19vaygpIGluc2lkZSBnZXRfdXNl cigpIHlvdSBkb24ndA0KPiA+IG5lZWQgdG8gY2hlY2sgdGhlIHNpemUgYXQgYWxsLg0KPiANCj4g WW91IG1lYW4gb24gNjQgYml0IG9yIG9uIGFueSBwbGF0Zm9ybSA/DQoNCjY0Yml0IGFuZCAzMmJp dA0KDQo+IFdoYXQgYWJvdXQgYSB3b3JkIHdyaXRlIHRvIDB4YmZmZmZmZmUsIHdvbid0IGl0IG92 ZXJ3cml0ZSAweGMwMDAwMDAwID8NCj4gDQo+ID4gWW91IGRvbid0IGV2ZW4gbmVlZCB0byBpbiBj b3B5X3RvL2Zyb21fdXNlcigpIHByb3ZpZGVkDQo+ID4gaXQgYWx3YXlzIGRvZXMgYSBmb3J3YXJk cyBjb3B5Lg0KPiANCj4gRG8geW91IG1lYW4gZHVlIHRvIHRoZSBnYXAgPw0KPiBJcyBpdCBnYXJh bnRpZWQgdG8gYmUgYSBnYXAgPyBFdmVuIG9uIGEgMzIgYml0cyBoYXZpbmcgVEFTS19TSVpFIHNl dCB0bw0KPiAweGMwMDAwMDAwIGFuZCBQQUdFX09GRlNFVCBzZXQgdG8gdGhlIHNhbWUgPw0KDQpJ IHJlYWQgc29tZXdoZXJlIChJIHdvbid0IGZpbmQgaXQgYWdhaW4pIHRoYXQgdGhlIGxhc3QgNGsg cGFnZQ0KKGJlbG93IDB4YzAwMDAwMDApIG11c3Qgbm90IGJlIGFsbG9jYXRlZCBvbiBpMzg2IGJl Y2F1c2Ugc29tZQ0KY3B1IChib3RoIGludGVsIGFuZCBhbWQpIGRvICdob3JyaWQgdGhpbmdzJyBp ZiB0aGV5IHRyeSB0bw0KKElJUkMpIGRvIGluc3RydWN0aW9uIHByZWZldGNoZXMgYWNyb3NzIHRo ZSBib3VuZGFyeS4NClNvIHRoZSBhY2Nlc3NlcyB0byAweGJmZmZmZmZlIHdpbGwgZmF1bHQgYW5k IHRoZSBvbmUgdG8gMHhjMDAwMDAwMA0Kd29uJ3QgaGFwcGVuIChpbiBhbnkgdXNlZnVsIHdheSBh dCBsZWFzdCkuDQoNCkknZCBzdXNwZWN0IHRoYXQgbm90IGFsbG9jYXRpbmcgdGhlIDNHLTRrIHBh Z2Ugd291bGQgYmUgYSBzYWZlDQpiZXQgb24gYWxsIGFyY2hpdGVjdHVyZXMgLSBldmVuIDY4ay4N Cg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2Fk LCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5v OiAxMzk3Mzg2IChXYWxlcykNCg==