mm/compaction.c: fix deferring compaction mistake
authorMinchan Kim <minchan@kernel.org>
Tue, 21 Aug 2012 23:16:03 +0000 (16:16 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 21 Aug 2012 23:45:03 +0000 (16:45 -0700)
commitc81758fbe0fdbbc0c74b37798f55bd9c91d5c068
tree5f25b6a2220c5e358e278681d6edc734b87288c3
parent7838f994b4fceff24c343f4e26a6cf4393869579
mm/compaction.c: fix deferring compaction mistake

Commit aff622495c9a ("vmscan: only defer compaction for failed order and
higher") fixed bad deferring policy but made mistake about checking
compact_order_failed in __compact_pgdat().  So it can't update
compact_order_failed with the new order.  This ends up preventing
correct operation of policy deferral.  This patch fixes it.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/compaction.c