Hi,

Since I am responsible for messing up some aspects of vm
(when fixing others)
here is a patch that tries to solve the introduced problems.

* no more periodic wake up of kswapd - not needed anymore
* no more freeing all zones to (free_pages > pages_high)
* always wakes kswapd up after try_to_free_pages
* always wakes kswapd up when (free_pages < pages_low)
* remove keep_kswapd_awake() function - not needed anymore

/RogerL

Note: Includes Riels "[PATCH] 2.4.0-test4 kswapd rebalancing fix"

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