vmscan: synchronous lumpy reclaim should not call congestion_wait()
authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Tue, 26 Oct 2010 21:21:41 +0000 (14:21 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 26 Oct 2010 23:52:07 +0000 (16:52 -0700)
commitbc57e00f5e0b2480ef222c775c49552d3a930db7
tree51aa33378602a41fb73b9b2fbee2ca04706aa9d6
parent52bb9198668968506f9d12bf35d7f5d3f094921e
vmscan: synchronous lumpy reclaim should not call congestion_wait()

congestion_wait() means "wait until queue congestion is cleared".
However, synchronous lumpy reclaim does not need this congestion_wait() as
shrink_page_list(PAGEOUT_IO_SYNC) uses wait_on_page_writeback() and it
provides the necessary waiting.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/vmscan.c