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=-3.8 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 1675AC4320E for ; Fri, 20 Aug 2021 08:26:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0063260F4C for ; Fri, 20 Aug 2021 08:25:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234754AbhHTI0g (ORCPT ); Fri, 20 Aug 2021 04:26:36 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]:56452 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234923AbhHTI0a (ORCPT ); Fri, 20 Aug 2021 04:26:30 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-50-1lwXgCl5MSC7hSZT66iCNQ-1; Fri, 20 Aug 2021 09:25:49 +0100 X-MC-Unique: 1lwXgCl5MSC7hSZT66iCNQ-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 15.0.1497.23; Fri, 20 Aug 2021 09:25:47 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.023; Fri, 20 Aug 2021 09:25:47 +0100 From: David Laight To: 'NeilBrown' , "J. Bruce Fields" CC: Andy Lutomirski , Linus Torvalds , "Eric W. Biederman" , David Hildenbrand , Linux Kernel Mailing List , Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Al Viro , Alexey Dobriyan , "Steven Rostedt" , "Peter Zijlstra (Intel)" , Arnaldo Carvalho de Melo , "Mark Rutland" , Alexander Shishkin , Jiri Olsa , "Namhyung Kim" , Petr Mladek , Sergey Senozhatsky , Andy Shevchenko , Rasmus Villemoes , Kees Cook , Greg Ungerer , Geert Uytterhoeven , "Mike Rapoport" , Vlastimil Babka , "Vincenzo Frascino" , Chinwen Chang , Michel Lespinasse , "Catalin Marinas" , "Matthew Wilcox (Oracle)" , Huang Ying , Jann Horn , Feng Tang , Kevin Brodsky , Michael Ellerman , "Shawn Anastasio" , Nicholas Piggin , "Christian Brauner" , Jens Axboe , "Gabriel Krisman Bertazi" , Peter Xu , "Suren Baghdasaryan" , Shakeel Butt , "Marco Elver" , Daniel Jordan , "Nicolas Viennot" , Thomas Cedeno , Collin Fijalkovich , Michal Hocko , Miklos Szeredi , Chengguang Xu , =?utf-8?B?Q2hyaXN0aWFuIEvDtm5pZw==?= , "linux-unionfs@vger.kernel.org" , Linux API , "the arch/x86 maintainers" , "" , Linux-MM , "Florian Weimer" , Michael Kerrisk Subject: RE: [PATCH v1 0/7] Remove in-tree usage of MAP_DENYWRITE Thread-Topic: [PATCH v1 0/7] Remove in-tree usage of MAP_DENYWRITE Thread-Index: AQHXj6qO2FP1eIrarUmjR9CxLZPkE6txIhrAgAqqIaSAAEsGQA== Date: Fri, 20 Aug 2021 08:25:47 +0000 Message-ID: References: <20210812084348.6521-1-david@redhat.com>, <87o8a2d0wf.fsf@disp2133>, <60db2e61-6b00-44fa-b718-e4361fcc238c@www.fastmail.com>, <87lf56bllc.fsf@disp2133>, , <87eeay8pqx.fsf@disp2133>, <5b0d7c1e73ca43ef9ce6665fec6c4d7e@AcuMS.aculab.com>, <87h7ft2j68.fsf@disp2133>, , , <20210818154217.GB24115@fieldses.org> <162943109106.9892.7426782042253067338@noble.neil.brown.name> In-Reply-To: <162943109106.9892.7426782042253067338@noble.neil.brown.name> 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-unionfs@vger.kernel.org RnJvbTogTmVpbEJyb3duDQo+IFNlbnQ6IDIwIEF1Z3VzdCAyMDIxIDA0OjQ1DQouLi4NCj4gT19E RU5ZUkVBRCBpcyBhbiBpbnNhbmUgZmxhZy4gIElmIGEgcHJvY2VzcyByZWFkcyBhIGZpbGUgdGhh dCBzb21lIG90aGVyDQo+IHByb2Nlc3MgaXMgd29ya2luZyBvbiwgdGhlbiB0aGUgb25seSB3aGlj aCBjb3VsZCBiZSBodXJ0IGlzIHRoZSByZWFkZXIuDQo+IFNvIGFsbG93aW5nIGEgcHJvY2VzcyB0 byBhc2sgZm9yIHRoZSBvcGVuIHRvIGZhaWwgaWYgc29tZW9uZSBpcyB3cml0aW5nDQo+IG1pZ2h0 IG1ha2Ugc2Vuc2UuICBJbnNpc3RpbmcgdGhhdCBhbGwgb3BlbnMgZmFpbCBkb2VzIG5vdC4NCj4g QW55IGNvZGUgd2FudGluZyBPX0RFTllSRUFEICpzaG91bGQqIHVzZSBhZHZpc29yeSBsb2NraW5n LCBhbmQgYW55IGNvZGUNCj4gd2FudGluZyB0byBrbm93IGFib3V0IHJlYWQgZGVuaWFsIHNob3Vs ZCB0b28uDQoNCkl0IG1pZ2h0IG1ha2Ugc2Vuc2UgaWYgT19ERU5ZUkVBRCB8IE9fREVOWVdSSVRF IHwgT19SRFdSIGFyZSBhbGwgc2V0Lg0KVGhhdCB3b3VsZCBiZSB3aGF0IE9fRVhDTCBvdWdodCB0 byBtZWFuIGZvciBhIG5vcm1hbCBmaWxlLg0KU28gd291bGQgYmUgdXNlZnVsIGZvciBhIHByb2dy YW0gdGhhdCB3YW50cyB0byB1cGRhdGUgYSBjb25maWcgZmlsZS4NCg0KLi4uDQo+IEl0IHdvdWxk IGJlIG5pY2UgdG8gYmUgYWJsZSB0byBjb21iaW5lIE9fREVOWVdSSVRFIHdpdGggT19SRFdSLiAg VGhpcw0KPiBjb21iaW5hdGlvbiBpcyBleGFjdGx5IHdoYXQgdGhlIGtlcm5lbCAqc2hvdWxkKiBk byBmb3Igc3dhcCBmaWxlcy4NCg0KSSBzdXNwZWN0IHRoYXQgaXMgYSBjb21tb24gdXNhZ2UgLSBl ZyBmb3IgdXBkYXRpbmcgYSBmaWxlIHRoYXQgY29udGFpbnMNCmEgbG9nIGZpbGUgc2VxdWVuY2Ug bnVtYmVyLg0KDQouLi4NCj4gSSdtIG5vdCBzdXJlIGFib3V0IE9fREVOWURFTEVURS4gIEl0IGlz IGEgbG9jayBvbiB0aGUgbmFtZS4gIFVuaXggaGFzDQo+IHRyYWRpdGlvbmFsbHkgdXNlZCBsb2Nr LWZpbGVzIHRvIGxvY2sgYSBuYW1lLiAgVGhlIGZ1bmN0aW9uYWxpdHkgbWFrZXMNCj4gc2Vuc2Ug Zm9yIHByb2Nlc3NlcyB3aXRoIHdyaXRlLWFjY2VzcyB0byB0aGUgZGlyZWN0b3J5Li4uDQoNCkkn bSBub3Qgc3VyZSBpdCBtYWtlcyBhbnkgc2Vuc2Ugb24gZmlsZXN5c3RlbXMgdGhhdCB1c2UgaW5v ZGUgbnVtYmVycy4NCldoaWNoIG5hbWUgd291bGQgeW91IHByb3RlY3QsIGFuZCBob3cgd291bGQg eW91IG1hbmFnZSB0byBkbyB0aGUgdGVzdC4NCk9uIHdpbmRvd3MgT19ERU5ZREVMRVRFIGlzIHBy ZXR0eSBtdWNoIHRoZSBkZWZhdWx0Lg0KV2hpY2ggaXMgd2h5IHNvZnR3YXJlIHVwZGF0ZXMgYXJl IHN1Y2ggYSBQSVRBLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRl LCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpS ZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K