diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 96d4a148648d145ea4c0e17debf62f63e8cf534e..7e1e09fe4e3b65f6f11483ddc14ed22f22b2aeec 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -968,6 +968,15 @@ static inline int is_highmem_idx(enum zone_type idx)
 #endif
 }
 
+#ifdef CONFIG_ZONE_DMA
+bool has_managed_dma(void);
+#else
+static inline bool has_managed_dma(void)
+{
+	return false;
+}
+#endif
+
 /**
  * is_highmem - helper function to quickly check if a struct zone is a
  *              highmem zone or not.  This is an attempt to keep references
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a27aed0b99879aaf5c792d902e12299e71f66de3..6185ae68ce4ed1484cb4e7ce648fad36f600c4ba 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -9228,3 +9228,18 @@ enum node_type get_node_type(int nid)
 	return nodes_type[nid];
 }
 #endif
+
+#ifdef CONFIG_ZONE_DMA
+bool has_managed_dma(void)
+{
+	struct pglist_data *pgdat;
+
+	for_each_online_pgdat(pgdat) {
+		struct zone *zone = &pgdat->node_zones[ZONE_DMA];
+
+		if (managed_zone(zone))
+			return true;
+	}
+	return false;
+}
+#endif /* CONFIG_ZONE_DMA */