cma: fix migration mode

__alloc_contig_migrate_range calls migrate_pages with wrong argument
for migrate_mode. Fix it.

Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 22348ae..ed85c02 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5682,7 +5682,7 @@
 
 		ret = migrate_pages(&cc.migratepages,
 				    __alloc_contig_migrate_alloc,
-				    0, false, true);
+				    0, false, MIGRATE_SYNC);
 	}
 
 	putback_lru_pages(&cc.migratepages);