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 2EF34C43461 for ; Wed, 2 Sep 2020 13:54:11 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 803AC20767 for ; Wed, 2 Sep 2020 13:54:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 803AC20767 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=ACULAB.COM Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4BhQQl1tD3zDqyl for ; Wed, 2 Sep 2020 23:54:07 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=aculab.com (client-ip=207.82.80.151; helo=eu-smtp-delivery-151.mimecast.com; envelope-from=david.laight@aculab.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [207.82.80.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4BhQMN5dTSzDqwt for ; Wed, 2 Sep 2020 23:51:11 +1000 (AEST) Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-160-I6NBJ2z0PIWY5wEzjjZvMA-1; Wed, 02 Sep 2020 14:51:06 +0100 X-MC-Unique: I6NBJ2z0PIWY5wEzjjZvMA-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 14:51:05 +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 14:51:05 +0100 From: David Laight To: 'Christophe Leroy' , 'Christoph Hellwig' 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///zAICAABMqAA== Date: Wed, 2 Sep 2020 13:51:05 +0000 Message-ID: <0c298e0d972a48bd9ee178225e404b12@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> In-Reply-To: <8de54fe0-4be9-5624-dd1d-d95d792e933d@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 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-arch@vger.kernel.org" , Kees Cook , "x86@kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" , Al Viro , "linux-fsdevel@vger.kernel.org" , Linus Torvalds Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" RnJvbTogQ2hyaXN0b3BoZSBMZXJveQ0KPiBTZW50OiAwMiBTZXB0ZW1iZXIgMjAyMCAxNDoyNQ0K PiBMZSAwMi8wOS8yMDIwIMOgIDE1OjEzLCBEYXZpZCBMYWlnaHQgYSDDqWNyaXTCoDoNCj4gPiBG cm9tOiBDaHJpc3RvcGggSGVsbHdpZw0KPiA+PiBTZW50OiAwMiBTZXB0ZW1iZXIgMjAyMCAxMzoz Nw0KPiA+Pg0KPiA+PiBPbiBXZWQsIFNlcCAwMiwgMjAyMCBhdCAwODoxNToxMkFNICswMjAwLCBD aHJpc3RvcGhlIExlcm95IHdyb3RlOg0KPiA+Pj4+IC0JCXJldHVybiAwOw0KPiA+Pj4+IC0JcmV0 dXJuIChzaXplID09IDAgfHwgc2l6ZSAtIDEgPD0gc2VnLnNlZyAtIGFkZHIpOw0KPiA+Pj4+ICsJ aWYgKGFkZHIgPj0gVEFTS19TSVpFX01BWCkNCj4gPj4+PiArCQlyZXR1cm4gZmFsc2U7DQo+ID4+ Pj4gKwlpZiAoc2l6ZSA9PSAwKQ0KPiA+Pj4+ICsJCXJldHVybiBmYWxzZTsNCj4gPj4+DQo+ID4+ PiBfX2FjY2Vzc19vaygpIHdhcyByZXR1cm5pbmcgdHJ1ZSB3aGVuIHNpemUgPT0gMCB1cCB0byBu b3cuIEFueSByZWFzb24gdG8NCj4gPj4+IHJldHVybiBmYWxzZSBub3cgPw0KPiA+Pg0KPiA+PiBO bywgdGhpcyBpcyBhY2NpZGVudGFsIGFuZCBicm9rZW4uICBDYW4geW91IHJlLXJ1biB5b3VyIGJl bmNobWFyayB3aXRoDQo+ID4+IHRoaXMgZml4ZWQ/DQo+ID4NCj4gPiBJcyBUQVNLX1NJWkVfTUFT SyBkZWZpbmVkIHN1Y2ggdGhhdCB5b3UgY2FuIGRvOg0KPiA+DQo+ID4gCXJldHVybiAoYWRkciB8 IHNpemUpIDwgVEFTS19TSVpFX01BWCkgfHwgIXNpemU7DQo+IA0KPiBUQVNLX1NJWkVfTUFYIHdp bGwgdXN1YWxseSBiZSAweGMwMDAwMDAwDQo+IA0KPiBXaXRoOg0KPiBhZGRyID0gMHg4MDAwMDAw MDsNCj4gc2l6ZSA9IDB4ODAwMDAwMDA7DQo+IA0KPiBJIGV4cGVjdCBpdCB0byBmYWlsIC4uLi4N Cj4gDQo+IFdpdGggdGhlIGZvcm11bGEgeW91IHByb3Bvc2UgaXQgd2lsbCBzdWNjZWVkLCB3b24n dCBpdCA/DQoNCkhtbW0uLi4gV2FzIGkgZ2V0dGluZyBjb25mdXNlZCBhYm91dCBzb21lIGNvbW1l bnRzIGZvciA2NGJpdA0KYWJvdXQgdGhlcmUgYmVpbmcgc3VjaCBhIGJpZyBob2xlIGJldHdlZW4g dmFsaWQgdXNlciBhbmQga2VybmVsDQphZGRyZXNzZXMgdGhhdCBpdCB3YXMgZW5vdWdoIHRvIGNo ZWNrIHRoYXQgJ3NpemUgPCBUQVNLX1NJWkVfTUFYJy4NCg0KVGhhdCB3b3VsZCBiZSB0cnVlIGZv ciA2NGJpdCB4ODYgKGFuZCBwcm9iYWJseSBwcGMgKCYgYXJtPz8pKQ0KaWYgVEFTS19TSVpFX01B WCB3ZXJlIDB4NCA8PCA2MC4NCklJVUMgdGhlIGhpZ2hlc3QgdXNlciBhZGRyZXNzIGlzIChtdWNo KSBsZXNzIHRoYW4gMHgwIDw8IDYwDQphbmQgdGhlIGxvd2VzdCBrZXJuZWwgYWRkcmVzcyAobXVj aCkgZ3JlYXRlciB0aGFuIDB4ZiA8PCA2MA0Kb24gYWxsIHRoZXNlIDY0Yml0IHBsYXRmb3Jtcy4N Cg0KQWN0dWFsbHkgaWYgZG9pbmcgYWNjZXNzX29rKCkgaW5zaWRlIGdldF91c2VyKCkgeW91IGRv bid0DQpuZWVkIHRvIGNoZWNrIHRoZSBzaXplIGF0IGFsbC4NCllvdSBkb24ndCBldmVuIG5lZWQg dG8gaW4gY29weV90by9mcm9tX3VzZXIoKSBwcm92aWRlZA0KaXQgYWx3YXlzIGRvZXMgYSBmb3J3 YXJkcyBjb3B5Lg0KKFJhdGhlciB0aGF0IGNvcHlpbmcgdGhlIGxhc3Qgd29yZCBmaXJzdCBmb3Ig bWlzYWxpZ25lZCBsZW5ndGhzLikNCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBM YWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBU LCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==