linux-kernel - Re: [PATCH 07/10] mbind: add hugepage migration code to mbind()

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Message-ID: <515F4D9A.3060009@gmail.com>
Date:	Fri, 05 Apr 2013 18:18:02 -0400
From:	KOSAKI Motohiro <kosaki.motohiro@...il.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
CC:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>, Hugh Dickins <hughd@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andi Kleen <andi@...stfloor.org>,
	Hillf Danton <dhillf@...il.com>, Michal Hocko <mhocko@...e.cz>,
	linux-kernel@...r.kernel.org, kosaki.motohiro@...il.com
Subject: Re: [PATCH 07/10] mbind: add hugepage migration code to mbind()

> @@ -1277,14 +1279,10 @@ static long do_mbind(unsigned long start, unsigned long len,
>  	if (!err) {
>  		int nr_failed = 0;
>  
> -		if (!list_empty(&pagelist)) {
> -			WARN_ON_ONCE(flags & MPOL_MF_LAZY);
> -			nr_failed = migrate_pages(&pagelist, new_vma_page,
> +		WARN_ON_ONCE(flags & MPOL_MF_LAZY);

???
MPOL_MF_LAZY always output warn? It seems really insane.


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