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Date: Mon, 7 Jun 2021 00:29:09 +0300
From: Mike Rapoport <rppt@...nel.org>
To: Kefeng Wang <wangkefeng.wang@...wei.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
linux-snps-arc@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-csky@...r.kernel.org,
uclinux-h8-devel@...ts.sourceforge.jp,
linux-m68k@...ts.linux-m68k.org, openrisc@...ts.librecores.org,
linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org,
linux-sh@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [PATCH v2 00/15] init_mm: cleanup ARCH's text/data/brk setup code
Hello Kefeng,
On Fri, Jun 04, 2021 at 03:06:18PM +0800, Kefeng Wang wrote:
> Add setup_initial_init_mm() helper, then use it
> to cleanup the text, data and brk setup code.
>
> v2:
> - change argument from "char *" to "void *" setup_initial_init_mm()
> suggested by Geert Uytterhoeven
> - use NULL instead of (void *)0 on h8300 and m68k
> - collect ACKs
>
> 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
> Kefeng Wang (15):
> mm: add setup_initial_init_mm() helper
> arc: convert to setup_initial_init_mm()
> arm: convert to setup_initial_init_mm()
> arm64: convert to setup_initial_init_mm()
> csky: convert to setup_initial_init_mm()
> h8300: convert to setup_initial_init_mm()
> m68k: convert to setup_initial_init_mm()
> nds32: convert to setup_initial_init_mm()
> nios2: convert to setup_initial_init_mm()
> openrisc: convert to setup_initial_init_mm()
> powerpc: convert to setup_initial_init_mm()
> riscv: convert to setup_initial_init_mm()
> s390: convert to setup_initial_init_mm()
> sh: convert to setup_initial_init_mm()
> x86: convert to setup_initial_init_mm()
I might be missing something, but AFAIU the init_mm.start_code and other
fields are not used really early so the new setup_initial_init_mm()
function can be called in the generic code outside setup_arch(), e.g in
mm_init().
> arch/arc/mm/init.c | 5 +----
> arch/arm/kernel/setup.c | 5 +----
> arch/arm64/kernel/setup.c | 5 +----
> arch/csky/kernel/setup.c | 5 +----
> arch/h8300/kernel/setup.c | 5 +----
> arch/m68k/kernel/setup_mm.c | 5 +----
> arch/m68k/kernel/setup_no.c | 5 +----
> arch/nds32/kernel/setup.c | 5 +----
> arch/nios2/kernel/setup.c | 5 +----
> arch/openrisc/kernel/setup.c | 5 +----
> arch/powerpc/kernel/setup-common.c | 5 +----
> arch/riscv/kernel/setup.c | 5 +----
> arch/s390/kernel/setup.c | 5 +----
> arch/sh/kernel/setup.c | 5 +----
> arch/x86/kernel/setup.c | 5 +----
> include/linux/mm_types.h | 8 ++++++++
> 16 files changed, 23 insertions(+), 60 deletions(-)
>
> --
> 2.26.2
>
>
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> linux-riscv@...ts.infradead.org
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--
Sincerely yours,
Mike.
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