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authorIngo Molnar <mingo@elte.hu>2011-02-02 07:10:03 +0100
committerIngo Molnar <mingo@elte.hu>2011-02-02 07:10:06 +0100
commit8104a4775ad8a7863af0b898224b15aa708582db (patch)
tree71380e4db36e9d91e521d0a98be74981e32a6700 /mm/compaction.c
parentf6bbc1daac964da551130dbf01809d3fbd178b2d (diff)
parentebf53826e105f488f4f628703a108e98940d1dc5 (diff)
Merge commit 'v2.6.38-rc3' into perf/core
Merge reason: Pick up latest fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 6d592a021072..8be430b812de 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -406,6 +406,10 @@ static int compact_finished(struct zone *zone,
if (!zone_watermark_ok(zone, cc->order, watermark, 0, 0))
return COMPACT_CONTINUE;
+ /*
+ * order == -1 is expected when compacting via
+ * /proc/sys/vm/compact_memory
+ */
if (cc->order == -1)
return COMPACT_CONTINUE;
@@ -454,6 +458,13 @@ unsigned long compaction_suitable(struct zone *zone, int order)
return COMPACT_SKIPPED;
/*
+ * order == -1 is expected when compacting via
+ * /proc/sys/vm/compact_memory
+ */
+ if (order == -1)
+ return COMPACT_CONTINUE;
+
+ /*
* fragmentation index determines if allocation failures are due to
* low memory or external fragmentation
*