linux-kernel - Re: [PATCH] mm: Move mem_init_print_info() into mm

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Date:   Tue, 16 Mar 2021 23:04:01 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>,
        <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     <linux-ia64@...r.kernel.org>, <linux-sh@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        "Dave Hansen" <dave.hansen@...ux.intel.com>, <linux-mm@...ck.org>,
        Guo Ren <guoren@...nel.org>, <sparclinux@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>, Jonas Bonn <jonas@...thpole.se>,
        <linux-s390@...r.kernel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        <linux-hexagon@...r.kernel.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        "Russell King" <linux@...linux.org.uk>,
        <linux-csky@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>,
        <linux-snps-arc@...ts.infradead.org>,
        <linux-xtensa@...ux-xtensa.org>,
        Heiko Carstens <hca@...ux.ibm.com>,
        <linux-um@...ts.infradead.org>, <linux-m68k@...ts.linux-m68k.org>,
        <openrisc@...ts.librecores.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Richard Henderson <rth@...ddle.net>,
        <linux-parisc@...r.kernel.org>, <linux-mips@...r.kernel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        <linux-alpha@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH] mm: Move mem_init_print_info() into mm_init()


On 2021/3/16 22:47, Christophe Leroy wrote:
>
>
> Le 16/03/2021 à 15:26, Kefeng Wang a écrit :
>> mem_init_print_info() is called in mem_init() on each architecture,
>> and pass NULL argument, cleanup it by using void argument and move
>> it into mm_init().
>>
>> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
>> ---
>>   arch/alpha/mm/init.c             | 1 -
>>   arch/arc/mm/init.c               | 1 -
>>   arch/arm/mm/init.c               | 2 --
>>   arch/arm64/mm/init.c             | 2 --
>>   arch/csky/mm/init.c              | 1 -
>>   arch/h8300/mm/init.c             | 2 --
>>   arch/hexagon/mm/init.c           | 1 -
>>   arch/ia64/mm/init.c              | 1 -
>>   arch/m68k/mm/init.c              | 1 -
>>   arch/microblaze/mm/init.c        | 1 -
>>   arch/mips/loongson64/numa.c      | 1 -
>>   arch/mips/mm/init.c              | 1 -
>>   arch/mips/sgi-ip27/ip27-memory.c | 1 -
>>   arch/nds32/mm/init.c             | 1 -
>>   arch/nios2/mm/init.c             | 1 -
>>   arch/openrisc/mm/init.c          | 2 --
>>   arch/parisc/mm/init.c            | 2 --
>>   arch/powerpc/mm/mem.c            | 1 -
>>   arch/riscv/mm/init.c             | 1 -
>>   arch/s390/mm/init.c              | 2 --
>>   arch/sh/mm/init.c                | 1 -
>>   arch/sparc/mm/init_32.c          | 2 --
>>   arch/sparc/mm/init_64.c          | 1 -
>>   arch/um/kernel/mem.c             | 1 -
>>   arch/x86/mm/init_32.c            | 2 --
>>   arch/x86/mm/init_64.c            | 2 --
>>   arch/xtensa/mm/init.c            | 1 -
>>   include/linux/mm.h               | 2 +-
>>   init/main.c                      | 1 +
>>   mm/page_alloc.c                  | 2 +-
>>   30 files changed, 3 insertions(+), 38 deletions(-)
>>
>
>> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
>> index 55d938297ce6..e4a6bf69c806 100644
>> --- a/mm/page_alloc.c
>> +++ b/mm/page_alloc.c
>> @@ -7728,7 +7728,7 @@ unsigned long free_reserved_area(void *start, 
>> void *end, int poison, const char
>>       return pages;
>>   }
>>   -void __init mem_init_print_info(const char *str)
>> +void __init mem_init_print_info(void)
>>   {
>>       unsigned long physpages, codesize, datasize, rosize, bss_size;
>>       unsigned long init_code_size, init_data_size;
>>
>
> And what about the 'str' in the last line of the function ?
>
>     pr_info("Memory: %luK/%luK available (%luK kernel code, %luK 
> rwdata, %luK rodata, %luK init, %luK bss, %luK reserved, %luK 
> cma-reserved"
> #ifdef    CONFIG_HIGHMEM
>         ", %luK highmem"
> #endif
>         "%s%s)\n",
>         nr_free_pages() << (PAGE_SHIFT - 10),
>         physpages << (PAGE_SHIFT - 10),
>         codesize >> 10, datasize >> 10, rosize >> 10,
>         (init_data_size + init_code_size) >> 10, bss_size >> 10,
>         (physpages - totalram_pages() - totalcma_pages) << (PAGE_SHIFT 
> - 10),
>         totalcma_pages << (PAGE_SHIFT - 10),
> #ifdef    CONFIG_HIGHMEM
>         totalhigh_pages() << (PAGE_SHIFT - 10),
> #endif
>         str ? ", " : "", str ? str : "");

oh,   I send a bad version，firstly I want to split two patches, one for 
function move, one for function change.

sorry, please ignore it， thanks for your remind.

>
>
> Christophe
> .
>