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 55FC4C433DB for ; Fri, 19 Mar 2021 17:14:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E321B61967 for ; Fri, 19 Mar 2021 17:14:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E321B61967 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 71A588D0001; Fri, 19 Mar 2021 13:14:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6CA5D6B0080; Fri, 19 Mar 2021 13:14:38 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4F4AE8D0001; Fri, 19 Mar 2021 13:14:38 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0090.hostedemail.com [216.40.44.90]) by kanga.kvack.org (Postfix) with ESMTP id 2C5AB6B007B for ; Fri, 19 Mar 2021 13:14:38 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id DBC188249980 for ; Fri, 19 Mar 2021 17:14:37 +0000 (UTC) X-FDA: 77937272994.13.93F0C72 Received: from mail-lf1-f42.google.com (mail-lf1-f42.google.com [209.85.167.42]) by imf28.hostedemail.com (Postfix) with ESMTP id 8383720003AD for ; Fri, 19 Mar 2021 17:14:23 +0000 (UTC) Received: by mail-lf1-f42.google.com with SMTP id b83so11109218lfd.11 for ; Fri, 19 Mar 2021 10:14:22 -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=BkRxICNeg5DYscXEGEcqd4ui8J4BudI3HPDlVjLS4/s=; b=guKEZmHG3VKWVbRkUkqS326KvwlSHdPvZzHa/1CkYDmr54RI3pXNEHVpEPJmaS3N3X /EqoPZGZMmv2p3unSm6MlDxz3VPHiDwoeGwoZtelQwb4N/q+by09AHLgY2aoyEtt8Far xcfp/7lRvIBDpORnuuQP/pZlLNDFxgj3WXCjI= 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=BkRxICNeg5DYscXEGEcqd4ui8J4BudI3HPDlVjLS4/s=; b=o3xGBCoIf76qS3wyHA0UP9S/izt2YU/08GGwDqcXAlDsFpIDpqMbLVcedowQ/yFAJD 9O2QOexWg2nOTpMJ3Rsm82IPjqYoDrGyqBiVE+6+lQqlAOSYGAbN5qjWOXx2lauiHDUG 5/DTTyD53hPsyDJKRpJ6cNIUZA7D65y6en3dfCacMUpdZ3i7oCAclSSHJAaq9lZ9tuo/ AAZ0V17Aiu2pJQwiB1jk1UXwoNq1rgBXK3BFk5Xo6UipZ7XZmu94QcvpcKeVXM2+u42X /91e9Ct+UBy9Sk7LITk2pHCR+8OwLNQtC51a5zUU7hzkuMyLqiqqQg5bRcOmTwC42Xfo ymLw== X-Gm-Message-State: AOAM533EjqkkSwINiLuY5HeWotqWGZ7PB8oPct1n8ra+odNv/ddM5BPp aGy7zng7EWXYbQkAoKi1g87J58mBsHJ2OA== X-Google-Smtp-Source: ABdhPJwonzFYKO24B8MgmLSwlC2D8lhskz1RDFynHELn/XuBz76ZeSsG1Hpvbz/Jax/SXaIez+Nx9A== X-Received: by 2002:ac2:434f:: with SMTP id o15mr1491054lfl.398.1616174060162; Fri, 19 Mar 2021 10:14:20 -0700 (PDT) Received: from mail-lf1-f45.google.com (mail-lf1-f45.google.com. [209.85.167.45]) by smtp.gmail.com with ESMTPSA id z14sm844736ljk.33.2021.03.19.10.14.19 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 19 Mar 2021 10:14:19 -0700 (PDT) Received: by mail-lf1-f45.google.com with SMTP id g8so3986941lfv.12 for ; Fri, 19 Mar 2021 10:14:19 -0700 (PDT) X-Received: by 2002:a05:6512:3ba9:: with SMTP id g41mr1318559lfv.421.1616174058718; Fri, 19 Mar 2021 10:14:18 -0700 (PDT) MIME-Version: 1.0 References: <20210319143452.25948-1-david@redhat.com> In-Reply-To: <20210319143452.25948-1-david@redhat.com> From: Linus Torvalds Date: Fri, 19 Mar 2021 10:14:02 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good To: David Hildenbrand Cc: Linux Kernel Mailing List , Linux-MM , "Alexander A. Klimov" , Alexander Viro , Alexandre Belloni , Andrew Lunn , Andrew Morton , Andrey Zhizhikin , Arnd Bergmann , Benjamin Herrenschmidt , Brian Cain , Christian Borntraeger , Christophe Leroy , Chris Zankel , Corentin Labbe , "David S. Miller" , "Eric W. Biederman" , Geert Uytterhoeven , Gerald Schaefer , Greentime Hu , Greg Kroah-Hartman , Gregory Clement , Heiko Carstens , Helge Deller , Hillf Danton , huang ying , Ingo Molnar , Ivan Kokshaysky , "James E.J. Bottomley" , Jiaxun Yang , Jonas Bonn , Jonathan Corbet , Kairui Song , Krzysztof Kozlowski , Kuninori Morimoto , Linux API , Liviu Dudau , Lorenzo Pieralisi , Luc Van Oostenryck , Luis Chamberlain , Matthew Wilcox , Matt Turner , Max Filippov , Michael Ellerman , Michal Hocko , Mike Rapoport , Mikulas Patocka , Minchan Kim , Niklas Schnelle , Oleksiy Avramchenko , Palmer Dabbelt , Paul Mackerras , "Pavel Machek (CIP)" , Pavel Machek , "Peter Zijlstra (Intel)" , Pierre Morel , Randy Dunlap , Richard Henderson , Rich Felker , Robert Richter , Rob Herring , Russell King , Sam Ravnborg , Sebastian Andrzej Siewior , Sebastian Hesselbarth , Stafford Horne , Stefan Kristiansson , Steven Rostedt , Sudeep Holla , Theodore Dubois , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Viresh Kumar , William Cohen , Xiaoming Ni , Yoshinori Sato Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: dr5xjffhdowhpit1iz96abxxf7374efb X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 8383720003AD Received-SPF: none (linuxfoundation.org>: No applicable sender policy available) receiver=imf28; identity=mailfrom; envelope-from=""; helo=mail-lf1-f42.google.com; client-ip=209.85.167.42 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1616174063-609506 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, Mar 19, 2021 at 7:35 AM David Hildenbrand wrote: > > Let's start a discussion if /dev/kmem is worth keeping around and > fixing/maintaining or if we should just remove it now for good. I'll happily do this for the next merge window, but would really want distros to confirm that they don't enable it. I can confirm that it's certainly not enabled on any of the machines I have, but.. Linus