[RFC][PATCH 0/7] low latency synchrounous lumpy reclaim

From: KOSAKI Motohiro
Date: Thu Aug 05 2010 - 02:11:28 EST

If slow usb storage is connected and run plenty io operation, lumpy
reclaim often stall in shrink_inactive_list(). This patch series try
to solve this issue.
At least, This works fine on my desktop and usb stick environment :-)

This patch is still RFC. comment, reviewing and testing are welcome!

Wu Fengguang (1):
vmscan: raise the bar to PAGEOUT_IO_SYNC stalls

KOSAKI Motohiro (6):
vmscan: synchronous lumpy reclaim don't call congestion_wait()
vmscan: synchrounous lumpy reclaim use lock_page() instead trylock_page()
vmscan: narrowing synchrounous lumply reclaim condition
vmscan: kill dead code in shrink_inactive_list()
vmscan: remove PF_SWAPWRITE from __zone_reclaim()
vmscan: isolated_lru_pages() stop neighbor search if neighbor can't be isolated

mm/vmscan.c | 211 ++++++++++++++++++++++++++++++++++++++--------------------
1 files changed, 138 insertions(+), 73 deletions(-)

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