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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 470BDC4338F for ; Thu, 19 Aug 2021 19:23:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 31BEE60F5C for ; Thu, 19 Aug 2021 19:23:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229907AbhHSTYZ (ORCPT ); Thu, 19 Aug 2021 15:24:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56126 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230058AbhHSTYV (ORCPT ); Thu, 19 Aug 2021 15:24:21 -0400 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2907C061575 for ; Thu, 19 Aug 2021 12:23:44 -0700 (PDT) Received: by mail-lj1-x22b.google.com with SMTP id d16so13268457ljq.4 for ; Thu, 19 Aug 2021 12:23:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=3vr2D0SIS0akc317M8AmB5tdttHbmb/GSWHt0r9JCvY=; b=Fi8Vc+JQZqNTkTyv3PJfMFM6Rl3+unfpZvxu37FIdnrCAKsddyUIQiihvHMsIlXmmG jNbLyQr3wk60i2yKJAYhtkAeCvXwf1kN2XLuYSaEIndqSsXppyqYoBHCIJS+KCfm+Uht PTLXKfh+AnNuqTz97gUxnmE0uYiHymupjQB9U= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=3vr2D0SIS0akc317M8AmB5tdttHbmb/GSWHt0r9JCvY=; b=JJXsukWOI7RrR8yGRtSUX0yuhI8RWhh6YuVAz/2uRWLxBYZ/wnTtvcwr8CMGoVNuXd uuy5QUZs9LZl6jVVYGEvgWJKRzUJCia9UpeyRBRxib4zRSjd83QUY5eBNtWZ4XmksVDZ T7tDs4HqDmNZ31bJuimbl+AWYfehsJhvAmMNEoKIvRnj9e9eZKdQ9MdeIgw5RdKko56s w7QOVFd4EyCBcl0C/x5OY7RYAH8udh8nNE+GjyqLLPkDu4Xn1hHw+QSlr/mccCOUa9Za RkM/5DLrTHkDKWVks2O7lpIIS0WevYIeJsOjRHo0pihZkAlx/QqRcZCI/9X27kEPd+tt 4+NQ== X-Gm-Message-State: AOAM530bQQXdjkdUK5ezOKrC2Y+yyEsQC5lkk9ZJWbTFHu06ooob85qF B9ae6wiCYIXwwjx50KDr0MgefTSLNcVzz8NG+cM= X-Google-Smtp-Source: ABdhPJwQK6GmgKn/iFfgVtNY2o3vCFMP3aNOZcro6aRutOzeMG6AVZGYEDMdkMfSFTGf460XDeCAOg== X-Received: by 2002:a2e:9881:: with SMTP id b1mr13165934ljj.53.1629401023075; Thu, 19 Aug 2021 12:23:43 -0700 (PDT) Received: from mail-lf1-f48.google.com (mail-lf1-f48.google.com. [209.85.167.48]) by smtp.gmail.com with ESMTPSA id p3sm395346lfg.33.2021.08.19.12.23.42 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Aug 2021 12:23:42 -0700 (PDT) Received: by mail-lf1-f48.google.com with SMTP id o10so15163355lfr.11 for ; Thu, 19 Aug 2021 12:23:42 -0700 (PDT) X-Received: by 2002:a19:4f1a:: with SMTP id d26mr11307760lfb.377.1629400524676; Thu, 19 Aug 2021 12:15:24 -0700 (PDT) MIME-Version: 1.0 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> <87k0kkxbjn.fsf_-_@disp2133> <0c2af732e4e9f74c9d20b09fc4b6cbae40351085.camel@kernel.org> In-Reply-To: <0c2af732e4e9f74c9d20b09fc4b6cbae40351085.camel@kernel.org> From: Linus Torvalds Date: Thu, 19 Aug 2021 12:15:08 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Removing Mandatory Locks To: Jeff Layton Cc: "Eric W. Biederman" , Matthew Wilcox , Andy Lutomirski , 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 , =?UTF-8?Q?Christian_K=C3=B6nig?= , "linux-unionfs@vger.kernel.org" , Linux API , "the arch/x86 maintainers" , "" , Linux-MM , Florian Weimer , Michael Kerrisk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On Thu, Aug 19, 2021 at 11:39 AM Jeff Layton wrote: > > I'm all for ripping it out too. It's an insane interface anyway. > > I've not heard a single complaint about this being turned off in > fedora/rhel or any other distro that has this disabled. I'd love to remove it, we could absolutely test it. The fact that several major distros have it disabled makes me think it's fine. But as always, it would be good to check Android. The desktop distros tend to have the same tools and programs, so if Fedora and RHEL haven't needed it for years, then it's likely stale in Debian too (despite being enabled). But Android tends to be very different. Does anybody know? Linus