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

[Kefeng Wang]

On 2021/5/31 15:45, Geert Uytterhoeven wrote:
> 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)?
The original users are all "char*",  so same here ;)
> > +{
> > +       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