diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 805b287..5ec7658 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -383,6 +383,9 @@
 	if (err)
 		return err;
 
+	bdi->wb_congested.state = 0;
+	bdi->wb.congested = &bdi->wb_congested;
+
 	return 0;
 }
 EXPORT_SYMBOL(bdi_init);
@@ -504,7 +507,7 @@
 	wait_queue_head_t *wqh = &congestion_wqh[sync];
 
 	bit = sync ? WB_sync_congested : WB_async_congested;
-	if (test_and_clear_bit(bit, &bdi->wb.state))
+	if (test_and_clear_bit(bit, &bdi->wb.congested->state))
 		atomic_dec(&nr_bdi_congested[sync]);
 	smp_mb__after_atomic();
 	if (waitqueue_active(wqh))
@@ -517,7 +520,7 @@
 	enum wb_state bit;
 
 	bit = sync ? WB_sync_congested : WB_async_congested;
-	if (!test_and_set_bit(bit, &bdi->wb.state))
+	if (!test_and_set_bit(bit, &bdi->wb.congested->state))
 		atomic_inc(&nr_bdi_congested[sync]);
 }
 EXPORT_SYMBOL(set_bdi_congested);