path: root/mm
diff options
authorMel Gorman <mgorman@suse.de>2012-01-12 17:19:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-12 20:13:08 -0800
commitb16d3d5a5219d01e9be5e586e5d50fbf1ca955ea (patch)
tree790422876526d780e1b66dd47ae522bfa3b73484 /mm
parenta77ebd333cd810d7b680d544be88c875131c2bd3 (diff)
mm: compaction: use synchronous compaction for /proc/sys/vm/compact_memory
When asynchronous compaction was introduced, the /proc/sys/vm/compact_memory handler should have been updated to always use synchronous compaction. This did not happen so this patch addresses it. The assumption is if a user writes to /proc/sys/vm/compact_memory, they are willing for that process to stall. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Cc: Dave Jones <davej@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: Andy Isaacson <adi@hexapodia.org> Cc: Nai Xia <nai.xia@gmail.com> Cc: Johannes Weiner <jweiner@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 396ea2b47f7e..d31e64becb38 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -668,6 +668,7 @@ static int compact_node(int nid)
.nr_freepages = 0,
.nr_migratepages = 0,
.order = -1,
+ .sync = true,
zone = &pgdat->node_zones[zoneid];

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