diff --git a/mm/cma.c b/mm/cma.c
index c960459..6cf12fb 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -380,6 +380,8 @@
 	if (!count)
 		return NULL;
 
+	trace_cma_alloc_start(count, align);
+
 	mask = cma_bitmap_aligned_mask(cma, align);
 	offset = cma_bitmap_aligned_offset(cma, align);
 	bitmap_maxno = cma_bitmap_maxno(cma);
@@ -420,6 +422,8 @@
 
 		pr_debug("%s(): memory range at %p is busy, retrying\n",
 			 __func__, pfn_to_page(pfn));
+
+		trace_cma_alloc_busy_retry(pfn, pfn_to_page(pfn), count, align);
 		/* try again with a bit different memory target */
 		start = bitmap_no + mask + 1;
 	}