diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 12b5d53ec856..1dfbb43d7294 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -89,7 +89,7 @@ static int atomic_dec_return_safe(atomic_t *v)
 #define RBD_MINORS_PER_MAJOR		256
 #define RBD_SINGLE_MAJOR_PART_SHIFT	4
 
-#define RBD_MAX_PARENT_CHAIN_LEN	16
+#define RBD_MAX_PARENT_CHAIN_LEN	128
 
 #define RBD_SNAP_DEV_NAME_PREFIX	"snap_"
 #define RBD_MAX_SNAP_NAME_LEN	\