linux-kernel - Re: [PATCH v3 resend 01/15] mm: add setup_initial_init

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Date:   Tue, 8 Jun 2021 20:44:08 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        uclinux-h8-devel@...ts.sourceforge.jp, linux-s390@...r.kernel.org,
        linux-sh@...r.kernel.org, X86 ML <x86@...nel.org>,
        linux-kernel@...r.kernel.org, linux-csky@...r.kernel.org,
        Linux-MM <linux-mm@...ck.org>, linux-m68k@...ts.linux-m68k.org,
        openrisc@...ts.librecores.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-snps-arc@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
        linux-riscv@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper

On Tue, Jun 8, 2021 at 8:27 PM Christophe Leroy
<christophe.leroy@...roup.eu> wrote:
>
>
>
> Le 08/06/2021 à 16:53, Souptick Joarder a écrit :
> > On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang <wangkefeng.wang@...wei.com> wrote:
> >>
> >> Add setup_initial_init_mm() helper to setup kernel text,
> >> data and brk.
> >>
> >> Cc: linux-snps-arc@...ts.infradead.org
> >> Cc: linux-arm-kernel@...ts.infradead.org
> >> Cc: linux-csky@...r.kernel.org
> >> Cc: uclinux-h8-devel@...ts.sourceforge.jp
> >> Cc: linux-m68k@...ts.linux-m68k.org
> >> Cc: openrisc@...ts.librecores.org
> >> Cc: linuxppc-dev@...ts.ozlabs.org
> >> Cc: linux-riscv@...ts.infradead.org
> >> Cc: linux-sh@...r.kernel.org
> >> Cc: linux-s390@...r.kernel.org
> >> Cc: x86@...nel.org
> >> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
> >> ---
> >>   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

Ok.
>
> Christophe
>