linux-kernel - Re: [OpenRISC] [PATCH] openrisc: remove CONFIG_SET

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Message-ID: <CAMuHMdW2bxEtaYaLN28xk2uc=OV0ecUy-N_+Ay193gZq4nH0jw@mail.gmail.com>
Date:   Sun, 6 Feb 2022 10:42:46 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Stafford Horne <shorne@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Jonas Bonn <jonas@...thpole.se>, Arnd Bergmann <arnd@...db.de>,
        Randy Dunlap <rdunlap@...radead.org>,
        Christoph Hellwig <hch@...radead.org>,
        Openrisc <openrisc@...ts.librecores.org>
Subject: Re: [OpenRISC] [PATCH] openrisc: remove CONFIG_SET_FS

Hi Stafford,

Thanks for your patch!

On Sun, Feb 6, 2022 at 2:37 AM Stafford Horne <shorne@...il.com> wrote:
> Remove the address space override API set_fs() used for User Mode Linux.

Note: this doesn't have anything to do with UML...

> User address space is now limited to TASK_SIZE.
>
> To support this we implement and wire in __get_kernel_nofault and
> __set_kernel_nofault.
>
> The function user_addr_max is removed as there is a default definition
> provided when CONFIG_SET_FS is not used.
>
> Signed-off-by: Stafford Horne <shorne@...il.com>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds