]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
mm: vmscan: check if kswapd should writepage once per pgdat scan
authorMel Gorman <mgorman@suse.de>
Wed, 3 Jul 2013 22:01:53 +0000 (15:01 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 3 Jul 2013 23:07:28 +0000 (16:07 -0700)
commitb7ea3c417b6c2e74ca1cb051568f60377908928d
tree2f1f5dccc02d1fc0ac4a7dd4d6bbe88757b7e675
parent283aba9f9e0e4882bf09bd37a2983379a6fae805
mm: vmscan: check if kswapd should writepage once per pgdat scan

Currently kswapd checks if it should start writepage as it shrinks each
zone without taking into consideration if the zone is balanced or not.
This is not wrong as such but it does not make much sense either.  This
patch checks once per pgdat scan if kswapd should be writing pages.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Tested-by: Zlatko Calusic <zcalusic@bitsync.net>
Cc: dormando <dormando@rydia.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/vmscan.c