diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index fea7e6e..ba20f94 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -686,6 +686,7 @@
 	bdi->bw_time_stamp = jiffies;
 	bdi->written_stamp = 0;
 
+	bdi->dirty_ratelimit = INIT_BW;
 	bdi->write_bandwidth = INIT_BW;
 	bdi->avg_write_bandwidth = INIT_BW;