diff --git a/mm/compaction.c b/mm/compaction.c
index 78075a268399..b16dd3822995 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -926,6 +926,8 @@ int sysctl_extfrag_threshold = 500;
  * @gfp_mask: The GFP mask of the current allocation
  * @nodemask: The allowed nodes to allocate from
  * @sync: Whether migration is synchronous or not
+ * @contended: Return value that is true if compaction was aborted due to lock contention
+ * @page: Optionally capture a free page of the requested order during compaction
  *
  * This is the main entry point for direct page compaction.
  */