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From: Johannes Weiner on 16 Apr 2010 18:40
On Thu, Apr 15, 2010 at 06:21:34PM +0100, Mel Gorman wrote:
> From: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com>
>
> Since 2.6.28 zone->prev_priority is unused. Then it can be removed
> safely. It reduce stack usage slightly.
>
> Now I have to say that I'm sorry. 2 years ago, I thghout prev_priority
> can be integrate again, it's useful. but four (or more) times trying
> haven't got good performance number. thus I give up such approach.
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com>

Reviewed-by: Johannes Weiner <hannes(a)cmpxchg.org>
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