On Thu, Jan 26, 2012 at 02:59:14PM -0500, Rik van Riel wrote:

When built with CONFIG_COMPACTION, kswapd should not try to free
contiguous pages, because it is not trying hard enough to have
a real chance at being successful, but still disrupts the LRU
enough to break other things.

Do not do higher order page isolation unless we really are in
lumpy reclaim mode.

Stop reclaiming pages once we have enough free pages that
compaction can deal with things, and we hit the normal order 0
watermarks used by kswapd.

Also remove a line of code that increments balanced right before
exiting the function.

Signed-off-by: Rik van Riel <redacted>

Acked-by: Mel Gorman <redacted>

-- 
Mel Gorman
SUSE Labs

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