linux-kernel - Re: [PATCH v3 2/3] fix hugetlb memory check in vma_dump

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Message-ID: <515C818B.5070700@redhat.com>
Date:	Wed, 03 Apr 2013 15:22:51 -0400
From:	Rik van Riel <riel@...hat.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>,
	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: [PATCH v3 2/3] fix hugetlb memory check in vma_dump_size()

On 04/03/2013 02:35 PM, 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>
> Cc: stable@...r.kernel.org

Reviewed-by: Rik van Riel <riel@...hat.com>

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