Message-ID: <4C1681ED.5080502@redhat.com>
Date: Mon, 14 Jun 2010 15:24:29 -0400
From: Rik van Riel <riel@redhat.com>
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To: Mel Gorman <mel@csn.ul.ie>
CC: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
       linux-mm@kvack.org, Dave Chinner <david@fromorbit.com>,
       Chris Mason <chris.mason@oracle.com>, Nick Piggin <npiggin@suse.de>,
       Johannes Weiner <hannes@cmpxchg.org>,
       Christoph Hellwig <hch@infradead.org>,
       KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
       Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 09/12] vmscan: Setup pagevec as late as possible in shrink_page_list()
References: <1276514273-27693-1-git-send-email-mel@csn.ul.ie> <1276514273-27693-10-git-send-email-mel@csn.ul.ie>
In-Reply-To: <1276514273-27693-10-git-send-email-mel@csn.ul.ie>
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On 06/14/2010 07:17 AM, Mel Gorman wrote:
> shrink_page_list() sets up a pagevec to release pages as according as they
> are free. It uses significant amounts of stack on the pagevec. This
> patch adds pages to be freed via pagevec to a linked list which is then
> freed en-masse at the end. This avoids using stack in the main path that
> potentially calls writepage().
>
> Signed-off-by: Mel Gorman<mel@csn.ul.ie>

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

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