diff --git a/mm/compaction.c b/mm/compaction.c
index 8fe917e..47fca10 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -33,6 +33,7 @@
 	unsigned long nr_migratepages;	/* Number of pages to migrate */
 	unsigned long free_pfn;		/* isolate_freepages search base */
 	unsigned long migrate_pfn;	/* isolate_migratepages search base */
+	bool sync;			/* Synchronous migration */
 
 	/* Account for isolated anon and file pages */
 	unsigned long nr_anon;
@@ -455,7 +456,8 @@
 
 		nr_migrate = cc->nr_migratepages;
 		migrate_pages(&cc->migratepages, compaction_alloc,
-						(unsigned long)cc, 0);
+				(unsigned long)cc, 0,
+				cc->sync);
 		update_nr_listpages(cc);
 		nr_remaining = cc->nr_migratepages;
 
@@ -482,7 +484,8 @@
 }
 
 unsigned long compact_zone_order(struct zone *zone,
-						int order, gfp_t gfp_mask)
+						int order, gfp_t gfp_mask,
+						bool sync)
 {
 	struct compact_control cc = {
 		.nr_freepages = 0,
@@ -490,6 +493,7 @@
 		.order = order,
 		.migratetype = allocflags_to_migratetype(gfp_mask),
 		.zone = zone,
+		.sync = sync,
 	};
 	INIT_LIST_HEAD(&cc.freepages);
 	INIT_LIST_HEAD(&cc.migratepages);
@@ -505,11 +509,13 @@
  * @order: The order of the current allocation
  * @gfp_mask: The GFP mask of the current allocation
  * @nodemask: The allowed nodes to allocate from
+ * @sync: Whether migration is synchronous or not
  *
  * This is the main entry point for direct page compaction.
  */
 unsigned long try_to_compact_pages(struct zonelist *zonelist,
-			int order, gfp_t gfp_mask, nodemask_t *nodemask)
+			int order, gfp_t gfp_mask, nodemask_t *nodemask,
+			bool sync)
 {
 	enum zone_type high_zoneidx = gfp_zone(gfp_mask);
 	int may_enter_fs = gfp_mask & __GFP_FS;
@@ -533,7 +539,7 @@
 								nodemask) {
 		int status;
 
-		status = compact_zone_order(zone, order, gfp_mask);
+		status = compact_zone_order(zone, order, gfp_mask, sync);
 		rc = max(status, rc);
 
 		/* If a normal allocation would succeed, stop compacting */