From: Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH 4/4] mm: vmscan: If kswapd has been running too long,
 allow it to sleep
Date: Mon, 16 May 2011 10:30:37 -0400
Message-ID: <4DD1350D.9080302@redhat.com>
References: <1305295404-12129-1-git-send-email-mgorman@suse.de> <1305295404-12129-5-git-send-email-mgorman@suse.de>
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Cc: Andrew Morton <akpm@linux-foundation.org>,
        James Bottomley <James.Bottomley@HansenPartnership.com>,
        Colin King <colin.king@canonical.com>,
        Raghavendra D Prabhu <raghu.prabhu13@gmail.com>,
        Jan Kara <jack@suse.cz>, Chris Mason <chris.mason@oracle.com>,
        Christoph Lameter <cl@linux.com>, Pekka Enberg <penberg@kernel.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        linux-mm <linux-mm@kvack.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        linux-ext4 <linux-ext4@vger.kernel.org>
To: Mel Gorman <mgorman@suse.de>
Return-path: <owner-linux-mm@kvack.org>
In-Reply-To: <1305295404-12129-5-git-send-email-mgorman@suse.de>
Sender: owner-linux-mm@kvack.org
List-Id: linux-ext4.vger.kernel.org

On 05/13/2011 10:03 AM, Mel Gorman wrote:
> Under constant allocation pressure, kswapd can be in the situation where
> sleeping_prematurely() will always return true even if kswapd has been
> running a long time. Check if kswapd needs to be scheduled.
>
> Signed-off-by: Mel Gorman<mgorman@suse.de>

Acked-by: Rik van Riel<riel@redhat.com>

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