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

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Message-ID: <2d20b6c4-532a-282c-5184-4c0151eb30ce@huawei.com>
Date:   Mon, 31 May 2021 21:42:48 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
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


On 2021/5/31 15:45, Geert Uytterhoeven wrote:
> 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)?
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
>