diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 63b550403317..c142a152d6a4 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -938,6 +938,15 @@ 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 e8e0f1cec8b0..2d97073f7aa8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8903,3 +8903,18 @@ bool take_page_off_buddy(struct page *page)
 	return ret;
 }
 #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 */