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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 AB317C4338F for ; Sat, 14 Aug 2021 03:08:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 42FB160F48 for ; Sat, 14 Aug 2021 03:08:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 42FB160F48 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id BC3B96B006C; Fri, 13 Aug 2021 23:08:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B749E6B0071; Fri, 13 Aug 2021 23:08:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A3B2F6B0072; Fri, 13 Aug 2021 23:08:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0247.hostedemail.com [216.40.44.247]) by kanga.kvack.org (Postfix) with ESMTP id 876C26B006C for ; Fri, 13 Aug 2021 23:08:46 -0400 (EDT) Received: from smtpin34.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 3043F1802E616 for ; Sat, 14 Aug 2021 03:08:46 +0000 (UTC) X-FDA: 78472203852.34.445342F Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf28.hostedemail.com (Postfix) with ESMTP id 9A5DC9000E0F for ; Sat, 14 Aug 2021 03:08:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=yN2dIOe0Z4eAh1szyhdFaKZBa9WH2LVQEv32bhzJ1Gk=; b=I4PD14GIEIEFUS97KQ1JaPr8O1 jEt2+76AALN7XmTI1K/K9Ih4BAVvJd4zvIzjPq0zJvtjVapvv6ch5SdyqU1sbSwqWMh1UJkG7cKZ8 F3gJWMlVuDyDL/ouukgS4cA8V5ywtHh972JA2mA1mjjkYURYkqt8QPFTYNJa9CEP7q6Eq2yJLVTXh ChOvHo7d0DD3rAlJs3B8hjNedgWZDRaiBkqeUP6XeZlHCSfduGYmClCDOn8mKonEqWWbxqWuvSkX6 +RNlmD7G4UpWf0ZCigaJFieSxeP8p1NSWUwm77cIXxeWoMlCXqpRUBpY3qLMTBQa12jRNtKbxceGd YFDseCUw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mEjxx-00GKXu-NG; Sat, 14 Aug 2021 03:04:14 +0000 Date: Sat, 14 Aug 2021 04:04:09 +0100 From: Matthew Wilcox To: Andy Lutomirski Cc: Linus Torvalds , "Eric W. Biederman" , David Laight , 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 , 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 , Christian =?iso-8859-1?Q?K=F6nig?= , "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 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 9A5DC9000E0F Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=I4PD14GI; spf=none (imf28.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none X-Rspamd-Server: rspam01 X-Stat-Signature: jtqki5pxjn3n775psqjmpoztttg4sbx6 X-HE-Tag: 1628910525-628859 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Aug 13, 2021 at 05:49:19PM -0700, Andy Lutomirski wrote: > [0] we have mandatory locks, too. Sigh. I'd love to remove that. Perhaps we could try persuading more of the distros to disable the CONFIG option first.