Re: [PATCH 01/15] mm: add setup_initial_init_mm() helper

[Geert Uytterhoeven]

Hi Kefeng,

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

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@xxxxxxxxxxxxxx

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