linux-kernel - Re: [PATCH 01/12] mm: page_alloc: move mirrored_kernelcore into mm

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Date:   Tue, 9 May 2023 09:38:54 -0700
From:   Mike Rapoport <rppt@...nel.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 01/12] mm: page_alloc: move mirrored_kernelcore into
 mm_init.c

On Mon, May 08, 2023 at 03:11:49PM +0800, Kefeng Wang wrote:
> Since commit 9420f89db2dd ("mm: move most of core MM initialization
> to mm/mm_init.c"), mirrored_kernelcore should be moved into mm_init.c,
> as most related codes are already there.
> 
> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>

Reviewed-by: Mike Rapoport (IBM) <rppt@...nel.org>

> ---
>  mm/mm_init.c    | 2 ++
>  mm/page_alloc.c | 3 ---
>  2 files changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/mm/mm_init.c b/mm/mm_init.c
> index 7f7f9c677854..da162b7a044c 100644
> --- a/mm/mm_init.c
> +++ b/mm/mm_init.c
> @@ -259,6 +259,8 @@ static int __init cmdline_parse_core(char *p, unsigned long *core,
>  	return 0;
>  }
>  
> +bool mirrored_kernelcore __initdata_memblock;
> +
>  /*
>   * kernelcore=size sets the amount of memory for use for allocations that
>   * cannot be reclaimed or migrated.
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index af9c995d3c1e..d1086aeca8f2 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -23,7 +23,6 @@
>  #include <linux/interrupt.h>
>  #include <linux/pagemap.h>
>  #include <linux/jiffies.h>
> -#include <linux/memblock.h>
>  #include <linux/compiler.h>
>  #include <linux/kernel.h>
>  #include <linux/kasan.h>
> @@ -374,8 +373,6 @@ int user_min_free_kbytes = -1;
>  int watermark_boost_factor __read_mostly = 15000;
>  int watermark_scale_factor = 10;
>  
> -bool mirrored_kernelcore __initdata_memblock;
> -
>  /* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
>  int movable_zone;
>  EXPORT_SYMBOL(movable_zone);
> -- 
> 2.35.3
>