On Thu, 9 Dec 2010 11:18:17 +0000 Mel Gorman <mel@xxxxxxxxx> wrote: > Before kswapd goes to sleep, it uses sleeping_prematurely() to check if > there was a race pushing a zone below its watermark. If the race > happened, it stays awake. However, balance_pgdat() can decide to reclaim > at a lower order if it decides that high-order reclaim is not working as > expected. This information is not passed back to sleeping_prematurely(). > The impact is that kswapd remains awake reclaiming pages long after it > should have gone to sleep. This patch passes the adjusted order to > sleeping_prematurely and uses the same logic as balance_pgdat to decide > if it's ok to go to sleep. > > Signed-off-by: Mel Gorman <mel@xxxxxxxxx> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>