linux-kernel - Re: [PATCH v2] mm: Consider the entire user address space during node migration

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Date:	Mon, 17 May 2010 09:00:37 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Greg Thelen <gthelen@...gle.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lee Schermerhorn <lee.schermerhorn@...com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>, kamezawa.hiroyu@...fujitsu.com,
	nishimura@....nes.nec.co.jp, balbir@...ux.vnet.ibm.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v2] mm: Consider the entire user address space during node migration

> Changes since v1:
> - Use mm->task_size rather than TASK_SIZE_MAX to support all platforms.
> 
> Signed-off-by: Greg Thelen <gthelen@...gle.com>

Looks good. Thanks Greg!
	Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>


> ---
>  mm/mempolicy.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/mm/mempolicy.c b/mm/mempolicy.c
> index 9f11728..2fd17e7 100644
> --- a/mm/mempolicy.c
> +++ b/mm/mempolicy.c
> @@ -928,7 +928,7 @@ static int migrate_to_node(struct mm_struct *mm, int source, int dest,
>  	nodes_clear(nmask);
>  	node_set(source, nmask);
>  
> -	check_range(mm, mm->mmap->vm_start, TASK_SIZE, &nmask,
> +	check_range(mm, mm->mmap->vm_start, mm->task_size, &nmask,
>  			flags | MPOL_MF_DISCONTIG_OK, &pagelist);
>  
>  	if (!list_empty(&pagelist))
> -- 
> 1.7.0.1
> 



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