linux-kernel - Re: [PATCH v2 00/18] clean up asm/uaccess.h, kill set

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Message-ID: <CAK8P3a3QBWDYjr6VpPdjTBGFg88DdH3SHVgxEowgScgJOkNguQ@mail.gmail.com>
Date:   Thu, 17 Feb 2022 09:13:43 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        Linux API <linux-api@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>
Cc:     Russell King - ARM Linux <linux@...linux.org.uk>,
        Will Deacon <will@...nel.org>, Guo Ren <guoren@...nel.org>,
        Brian Cain <bcain@...eaurora.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Michal Simek <monstr@...str.eu>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Nick Hu <nickhu@...estech.com>,
        Greentime Hu <green.hu@...il.com>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Stafford Horne <shorne@...il.com>,
        Helge Deller <deller@....de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Rich Felker <dalias@...c.org>,
        David Miller <davem@...emloft.net>,
        Richard Weinberger <richard@....at>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Max Filippov <jcmvbkbc@...il.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        alpha <linux-alpha@...r.kernel.org>,
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        linux-ia64@...r.kernel.org,
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Subject: Re: [PATCH v2 00/18] clean up asm/uaccess.h, kill set_fs for good

On Wed, Feb 16, 2022 at 2:13 PM Arnd Bergmann <arnd@...nel.org> wrote:
>
> From: Arnd Bergmann <arnd@...db.de>
>
> Christoph Hellwig and a few others spent a huge effort on removing
> set_fs() from most of the important architectures, but about half the
> other architectures were never completed even though most of them don't
> actually use set_fs() at all.
>
> I did a patch for microblaze at some point, which turned out to be fairly
> generic, and now ported it to most other architectures, using new generic
> implementations of access_ok() and __{get,put}_kernel_nocheck().
>
> Three architectures (sparc64, ia64, and sh) needed some extra work,
> which I also completed.
>
> The final series contains extra cleanup changes that touch all
> architectures. Please review and test these, so we can merge them
> for v5.18.
>
> The series is available at
> https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs-2
> for testing.

I've added the updated contents to my asm-generic tree now to put them
into linux-next.

         Arnd