# Re: \[PATCH v3 resend 01/15\] mm: add setup\_initial\_init\_mm() helper

- From: Christophe Leroy \<hidden\>
- Date: 2021-06-08 14:57:45 
- List: linux-mm
- Page: https://ratatoskr.run/linux-mm/2021/06/1406604
- Thread: https://ratatoskr.run/linux-s390/2021/06/1406122/t.md

```text


Le 08/06/2021 à 16:53, Souptick Joarder a écrit :
> On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang [ref] wrote:
>>
>> Add setup_initial_init_mm() helper to setup kernel text,
>> data and brk.
>>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: <redacted>
>> Cc: x86@kernel.org
>> Signed-off-by: Kefeng Wang <redacted>
>> ---
>>   include/linux/mm.h | 3 +++
>>   mm/init-mm.c       | 9 +++++++++
>>   2 files changed, 12 insertions(+)
>>
>> diff --git a/include/linux/mm.h b/include/linux/mm.h
>> index c274f75efcf9..02aa057540b7 100644
>> --- a/include/linux/mm.h
>> +++ b/include/linux/mm.h
>> @@ -244,6 +244,9 @@ int __add_to_page_cache_locked(struct page *page, struct address_space *mapping,
>>
>>   #define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
>>
>> +void setup_initial_init_mm(void *start_code, void *end_code,
>> +                          void *end_data, void *brk);
>> +
>
> Gentle query -> is there any limitation to add inline functions in
> setup_arch() functions ?

Kefeng just followed comment from Mike I guess, see https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20210604070633.32363-2-wangkefeng.wang@huawei.com/#2696253

Christophe


```