Re: [PATCH 04/10] vmscan: Synchronous lumpy reclaim should notcall congestion_wait()

From: Minchan Kim
Date: Tue Sep 07 2010 - 11:26:35 EST


On Mon, Sep 06, 2010 at 11:47:27AM +0100, Mel Gorman wrote:
> From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
>
> congestion_wait() mean "waiting queue congestion is cleared". However,
> synchronous lumpy reclaim does not need this congestion_wait() as
> shrink_page_list(PAGEOUT_IO_SYNC) uses wait_on_page_writeback()
> and it provides the necessary waiting.
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
> Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx>

--
Kind regards,
Minchan Kim
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