| To: | Mel Gorman <mgorman@xxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 7/8] mm: vmscan: Immediately reclaim end-of-LRU dirty pages when writeback completes |
| From: | Johannes Weiner <jweiner@xxxxxxxxxx> |
| Date: | Wed, 3 Aug 2011 13:26:30 +0200 |
| Cc: | Linux-MM <linux-mm@xxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, XFS <xfs@xxxxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Wu Fengguang <fengguang.wu@xxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Rik van Riel <riel@xxxxxxxxxx>, Minchan Kim <minchan.kim@xxxxxxxxx> |
| In-reply-to: | <1311265730-5324-8-git-send-email-mgorman@xxxxxxx> |
| References: | <1311265730-5324-1-git-send-email-mgorman@xxxxxxx> <1311265730-5324-8-git-send-email-mgorman@xxxxxxx> |
On Thu, Jul 21, 2011 at 05:28:49PM +0100, Mel Gorman wrote: > When direct reclaim encounters a dirty page, it gets recycled around > the LRU for another cycle. This patch marks the page PageReclaim > similar to deactivate_page() so that the page gets reclaimed almost > immediately after the page gets cleaned. This is to avoid reclaiming > clean pages that are younger than a dirty page encountered at the > end of the LRU that might have been something like a use-once page. > > Signed-off-by: Mel Gorman <mgorman@xxxxxxx> Apart from the naming of the counter (I like nr_reclaim_preferred), Acked-by: Johannes Weiner <jweiner@xxxxxxxxxx> |
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