linux-kernel - Re: [PATCH 01/15] mm: add setup_initial_init

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Message-ID: <CAMuHMdVHCFiwVUq9jBobw0adwe9-x3AUB8cSxrf6gHnQTfUMTA@mail.gmail.com>
Date:   Mon, 31 May 2021 09:45:27 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/15] mm: add setup_initial_init_mm() helper

Hi Kefeng,

On Sat, May 29, 2021 at 12:47 PM Kefeng Wang <wangkefeng.wang@...wei.com> wrote:
> Add setup_initial_init_mm() helper to setup kernel text,
> data and brk.
>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>

Thanks for your patch!

> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -564,6 +564,16 @@ struct mm_struct {
>  };
>
>  extern struct mm_struct init_mm;
> +static inline void setup_initial_init_mm(char *start_code,
> +                                        char *end_code,
> +                                        char *end_data,
> +                                        char *brk)

"void *" (for all four)?

> +{
> +       init_mm.start_code = (unsigned long)start_code;
> +       init_mm.end_code = (unsigned long)end_code;
> +       init_mm.end_data = (unsigned long)end_data;
> +       init_mm.brk = (unsigned long)brk;
> +}

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