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Message-ID: <CAHk-=wg1HTbXkjdMYA4zADEiE8HwpZ0=uWy0ujZTJYVT-KCehQ@mail.gmail.com>
Date:   Fri, 19 Mar 2021 10:14:02 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     David Hildenbrand <david@...hat.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        "Alexander A. Klimov" <grandmaster@...klimov.de>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andrey Zhizhikin <andrey.zhizhikin@...ca-geosystems.com>,
        Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Brian Cain <bcain@...eaurora.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Chris Zankel <chris@...kel.net>,
        Corentin Labbe <clabbe@...libre.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
        Greentime Hu <green.hu@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Helge Deller <deller@....de>, Hillf Danton <hdanton@...a.com>,
        huang ying <huang.ying.caritas@...il.com>,
        Ingo Molnar <mingo@...nel.org>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Jonas Bonn <jonas@...thpole.se>,
        Jonathan Corbet <corbet@....net>,
        Kairui Song <kasong@...hat.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Linux API <linux-api@...r.kernel.org>,
        Liviu Dudau <liviu.dudau@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Matt Turner <mattst88@...il.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Hocko <mhocko@...e.com>,
        Mike Rapoport <rppt@...nel.org>,
        Mikulas Patocka <mpatocka@...hat.com>,
        Minchan Kim <minchan@...nel.org>,
        Niklas Schnelle <schnelle@...ux.ibm.com>,
        Oleksiy Avramchenko <oleksiy.avramchenko@...ymobile.com>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>,
        Paul Mackerras <paulus@...ba.org>,
        "Pavel Machek (CIP)" <pavel@...x.de>, Pavel Machek <pavel@....cz>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Pierre Morel <pmorel@...ux.ibm.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Richard Henderson <rth@...ddle.net>,
        Rich Felker <dalias@...c.org>,
        Robert Richter <rric@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Sam Ravnborg <sam@...nborg.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
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        Vasily Gorbik <gor@...ux.ibm.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        William Cohen <wcohen@...hat.com>,
        Xiaoming Ni <nixiaoming@...wei.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>
Subject: Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand <david@...hat.com> 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

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