mm/vmscan.c: consider swap space when deciding whether to continue reclaim
authorMinchan Kim <minchan@kernel.org>
Tue, 10 Jan 2012 23:08:18 +0000 (15:08 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 11 Jan 2012 00:30:45 +0000 (16:30 -0800)
commit86cfd3a45042ab242d47f3935a02811a402beab6
treebd189c05dc3176f2193192ecea01f6b3a1ff8c71
parent799f933a82d878d7f15215473c5561ce984ada75
mm/vmscan.c: consider swap space when deciding whether to continue reclaim

It's pointless to continue reclaiming when we have no swap space and lots
of anon pages in the inactive list.

Without this patch, it is possible when swap is disabled to continue
trying to reclaim when there are only anonymous pages in the system even
though that will not make any progress.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/vmscan.c