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 39B5FC4320A for ; Sat, 14 Aug 2021 19:52:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 23BFA60EE0 for ; Sat, 14 Aug 2021 19:52:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232021AbhHNTwl (ORCPT ); Sat, 14 Aug 2021 15:52:41 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:35314 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232468AbhHNTwj (ORCPT ); Sat, 14 Aug 2021 15:52:39 -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-41-zR9RdrimPfW8ySEk10pv2Q-1; Sat, 14 Aug 2021 20:52:05 +0100 X-MC-Unique: zR9RdrimPfW8ySEk10pv2Q-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; Sat, 14 Aug 2021 20:52:02 +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; Sat, 14 Aug 2021 20:52:02 +0100 From: David Laight To: 'Linus Torvalds' , Andy Lutomirski CC: "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" , Steven Price , "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: AQHXj6qO2FP1eIrarUmjR9CxLZPkE6txIhrAgAEMnaiAATj0kA== Date: Sat, 14 Aug 2021 19:52:02 +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> 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 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 RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMTQgQXVndXN0IDIwMjEgMDE6NTUNCj4gDQo+ IE9uIEZyaSwgQXVnIDEzLCAyMDIxIGF0IDI6NDkgUE0gQW5keSBMdXRvbWlyc2tpIDxsdXRvQGtl cm5lbC5vcmc+IHdyb3RlOg0KPiA+DQo+ID4gSeKAmWxsIGJpdGUuICBIb3cgYWJvdXQgd2UgYXR0 YWNrIHRoaXMgaW4gdGhlIG9wcG9zaXRlIGRpcmVjdGlvbjogcmVtb3ZlIHRoZSBkZW55IHdyaXRl IG1lY2hhbmlzbQ0KPiBlbnRpcmVseS4NCj4gDQo+IEkgdGhpbmsgdGhhdCB3b3VsZCBiZSBvaywg ZXhjZXB0IEkgY2FuIHNlZSBzb21lYm9keSByZWx5aW5nIG9uIGl0Lg0KPiANCj4gSXQncyBicm9r ZW4sIGl0J3Mgc3R1cGlkLCBidXQgd2UndmUgZG9uZSB0aGF0IEVUWFRCVVNZIGZvciBhIF9sb29u Z18gdGltZS4NCg0KSSB0aGluayBFVFhUQlVTWSBwcmVkYXRlcyBMaW51eCBpdHNlbGYuDQpCdXQg SSBjYW4ndCByZW1lbWJlciB3aGV0aGVyIHRoZSBlbGYgdmVyc2lvbnMgb2Ygc3Vub3Mgb3Igc3Zy NA0KaW1wbGVtZW50ZWQgaXQgZm9yIHNoYXJlZCBsaWJyYXJpZXMuDQpJIGRvbid0IHJlbWVtYmVy IGhpdHRpbmcgaXQsIHNvIHRoZXkgbWF5IG5vdCBoYXZlLg0KDQpJJ20gYWN0dWFsbHkgc3VycHJp c2VkIGl0IGlhIGFuIG1tYXAoKSBmbGFnIHJhdGhlciB0aGFuIGFuIG9wZW4oKSBvbmUuDQpCZWlu ZyBhYmxlIHRvIG9wZW4gYSBmaWxlIGFuZCBndWFyYW50ZWUgaXQgY2FuJ3QgYmUgY2hhbmdlZCBz ZWVtcyBhIHNhbmUgaWRlYS4NCkFuZCBub3QganVzdCBmb3IgcHJvZ3JhbXMvbGlicmFyaWVzLg0K DQpCeSB0aGUgc291bmQgb2YgaXQgJ2ltbXV0YWJsZScgaXMgbm8gdXNlLg0KWW91IG5lZWQgdG8g YmUgYWJsZSB0byB1bmxpbmsgdGhlIGZpbGUgLSBvdGhlcndpc2UgeW91IGdldCBpbnRvIHRoZQ0K d2luZG93J3MgZmlhc2NvIG9mIG5vdCBiZWluZyBhYmxlIHRvIHVwZGF0ZSB3aXRob3V0IDE3IHJl Ym9vdHMuDQoNCkZXSVcgTUFQX0NPUFkgd291bGQgb25seSBuZWVkIHRvIHRha2Ugb25lIGNvcHkg b2YgdGhlIHBhZ2UgLSBhbGwgdGhlDQp1c2VycyBjb3VsZCBzaGFyZSB0aGUgc2FtZSBwYWdlIChi YWNrZWQgYnkgYSBzaW5nbGUgcGFnZSBvZiBzd2FwKS4NCk5vdCB0aGF0IEknbSBzdWdnZXN0aW5n IGl0IGlzIGEgZ29vZCBpZGVhIGF0IGFsbC4NCg0KSSBkbyB3b25kZXIgYWJvdXQgL3Byb2Mvc2Vs Zi9leGUgdGhvdWdoLg0KSXQgZ2F2ZSB0aGUgTmV0QlNEIExpbnV4IGVtdWxhdGlvbiBhIHRlcnJp YmxlIHByb2JsZW0uDQpCZWluZyBhYmxlIHRvIG9wZW4gdGhlIGlub2RlIG9mIHRoZSBwcm9ncmFt IGlzIGZpbmUuDQpUaGUgcHJvYmxlbSBpcyB0aGUgd2hhdCByZWFkbGluaygpIHJldHVybnMgLSBp dCBpcyBiYXNpY2FsbHkgc3RhbGUuDQpJZiBhIHByb2dyYW0gb3BlbiB0aGUgbGluayBjb250ZW50 cyBpdCBjb3VsZCBnZXQgYW55dGhpbmcgYXQgYWxsLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJl ZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXlu ZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K