linux-kernel - Re: [RESEND][PATCH v5 2/3] fix hugetlb memory check in vma_dump

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Date:	Wed, 10 Apr 2013 14:49:07 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Hugh Dickins <hughd@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	Michal Hocko <mhocko@...e.cz>,
	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND][PATCH v5 2/3] fix hugetlb memory check in
 vma_dump_size()

On Wed, 10 Apr 2013, Naoya Horiguchi wrote:

> Documentation/filesystems/proc.txt says about coredump_filter bitmask,
> 
>   Note bit 0-4 doesn't effect any hugetlb memory. hugetlb memory are only
>   effected by bit 5-6.
> 
> However current code can go into the subsequent flag checks of bit 0-4
> for vma(VM_HUGETLB). So this patch inserts 'return' and makes it work
> as written in the document.
> 
> Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
> Reviewed-by: Rik van Riel <riel@...hat.com>
> Acked-by: Michal Hocko <mhocko@...e.cz>
> Reviewed-by: HATAYAMA Daisuke <d.hatayama@...fujitsu.com>
> Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Cc: stable@...r.kernel.org

Acked-by: David Rientjes <rientjes@...gle.com>

Stable for 2.6.34+.
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