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Date: Tue, 24 Nov 2009 18:53:20 -0500
From: Rik van Riel <riel@redhat.com>
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Subject: Re: [PATCH 1/9] ksm: fix mlockfreed to munlocked
References: <Pine.LNX.4.64.0911241634170.24427@sister.anvils> <Pine.LNX.4.64.0911241638130.25288@sister.anvils>
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To: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>, Izik Eidus <ieidus@redhat.com>, Andrea Arcangeli <aarcange@redhat.com>, Chris Wright <chrisw@redhat.com>, Mel Gorman <mel@csn.ul.ie>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org
List-ID: <linux-mm.kvack.org>

On 11/24/2009 11:40 AM, Hugh Dickins wrote:
> When KSM merges an mlocked page, it has been forgetting to munlock it:
> that's been left to free_page_mlock(), which reports it in /proc/vmstat
> as unevictable_pgs_mlockfreed instead of unevictable_pgs_munlocked (and
> whinges "Page flag mlocked set for process" in mmotm, whereas mainline
> is silently forgiving).  Call munlock_vma_page() to fix that.
>
> Signed-off-by: Hugh Dickins<hugh.dickins@tiscali.co.uk>
>
>    
Acked-by: Rik van Riel <riel@redhat.com>

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