linux-kernel - Re: [PATCH v7, part3 14/16] mm: concentrate modification of totalram

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Date:	Wed, 29 May 2013 14:19:42 +0530
From:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
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>
Subject: Re: [PATCH v7, part3 14/16] mm: concentrate modification of totalram_pages
 into the mm core

On 05/17/2013 09:15 PM, Jiang Liu wrote:
> Concentrate code to modify totalram_pages into the mm core, so the arch
> memory initialized code doesn't need to take care of it. With these
> changes applied, only following functions from mm core modify global
> variable totalram_pages:
> free_bootmem_late(), free_all_bootmem(), free_all_bootmem_node(),
> adjust_managed_page_count().
> 
> With this patch applied, it will be much more easier for us to keep
> totalram_pages and zone->managed_pages in consistence.
> 
> Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
> Acked-by: David Howells <dhowells@...hat.com>
> ---
>  arch/alpha/mm/init.c             | 2 +-
>  arch/alpha/mm/numa.c             | 2 +-
>  arch/arc/mm/init.c               | 2 +-

...

> diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
> index f9c7077..c668a60 100644
> --- a/arch/arc/mm/init.c
> +++ b/arch/arc/mm/init.c
> @@ -111,7 +111,7 @@ void __init mem_init(void)
>  
>  	high_memory = (void *)(CONFIG_LINUX_LINK_BASE + arc_mem_sz);
>  
> -	totalram_pages = free_all_bootmem();
> +	free_all_bootmem();
>  
>  	/* count all reserved pages [kernel code/data/mem_map..] */
>  	reserved_pages = 0;

Acked-by: Vineet Gupta <vgupta@...opsys.com>	for arch/arc bits

Thx,
-Vineet

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