kswapd: reduce time spent in congestion_wait
By reducing the amount of time kswapd spends in congestion_wait kswapd is able to free up more memory in the background and therefore reduce the amount of time spent in direct reclaim. Change-Id: I46ebe577f8954d8ce9907430958fa0e53090979c Signed-off-by: Liam Mark <lmark@codeaurora.org> Signed-off-by: Greg Grisco <ggrisco@codeaurora.org>

Signed-off-by: evolutionmod <kernelcraft@gmail.com>