linux-kernel - Re: [PATCH v4, part3 24/41] mm/m68k: prepare for removing num_physpages and simplify mem

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Date:	Mon, 08 Apr 2013 11:34:10 +1000
From:	Greg Ungerer <gerg@...inux.org>
To:	Jiang Liu <liuj97@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Jiang Liu <jiang.liu@...wei.com>,
	David Rientjes <rientjes@...gle.com>,
	Wen Congyang <wency@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>, Minchan Kim <minchan@...nel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	David Howells <dhowells@...hat.com>,
	Mark Salter <msalter@...hat.com>,
	Jianguo Wu <wujianguo@...wei.com>, linux-mm@...ck.org,
	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	linux-m68k@...ts.linux-m68k.org
Subject: Re: [PATCH v4, part3 24/41] mm/m68k: prepare for removing num_physpages
 and simplify mem_init()

On 07/04/13 00:32, Jiang Liu wrote:
> Prepare for removing num_physpages and simplify mem_init().
> 
> Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> Cc: Greg Ungerer <gerg@...inux.org>

Acked-by: Greg Ungerer <gerg@...inux.org


> Cc: linux-m68k@...ts.linux-m68k.org
> Cc: linux-kernel@...r.kernel.org
> ---
>  arch/m68k/mm/init.c |   31 ++-----------------------------
>  1 file changed, 2 insertions(+), 29 deletions(-)
> 
> diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
> index 2485a8c..0723141 100644
> --- a/arch/m68k/mm/init.c
> +++ b/arch/m68k/mm/init.c
> @@ -149,33 +149,11 @@ void __init print_memmap(void)
>  void __init mem_init(void)
>  {
>  	pg_data_t *pgdat;
> -	int codepages = 0;
> -	int datapages = 0;
> -	int initpages = 0;
>  	int i;
>  
>  	/* this will put all memory onto the freelists */
> -	num_physpages = 0;
> -	for_each_online_pgdat(pgdat) {
> -		num_physpages += pgdat->node_present_pages;
> -
> +	for_each_online_pgdat(pgdat)
>  		free_all_bootmem_node(pgdat);
> -		for (i = 0; i < pgdat->node_spanned_pages; i++) {
> -			struct page *page = pgdat->node_mem_map + i;
> -			char *addr = page_to_virt(page);
> -
> -			if (!PageReserved(page))
> -				continue;
> -			if (addr >= _text &&
> -			    addr < _etext)
> -				codepages++;
> -			else if (addr >= __init_begin &&
> -				 addr < __init_end)
> -				initpages++;
> -			else
> -				datapages++;
> -		}
> -	}
>  
>  #if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)
>  	/* insert pointer tables allocated so far into the tablelist */
> @@ -190,12 +168,7 @@ void __init mem_init(void)
>  		init_pointer_table((unsigned long)zero_pgtable);
>  #endif
>  
> -	pr_info("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init)\n",
> -	       nr_free_pages() << (PAGE_SHIFT-10),
> -	       totalram_pages << (PAGE_SHIFT-10),
> -	       codepages << (PAGE_SHIFT-10),
> -	       datapages << (PAGE_SHIFT-10),
> -	       initpages << (PAGE_SHIFT-10));
> +	mem_init_print_info(NULL);
>  	print_memmap();
>  }
>  
> 

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