diff --git a/init/Kconfig b/init/Kconfig
index dc24dec..d4f7633 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1141,6 +1141,11 @@
 	Enable some debugging help. Currently it exports additional stat
 	files in a cgroup which can be useful for debugging.
 
+config CGROUP_WRITEBACK
+	bool
+	depends on MEMCG && BLK_CGROUP
+	default y
+
 endif # CGROUPS
 
 config CHECKPOINT_RESTORE