diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 0435c85..80adf3d 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -157,14 +157,7 @@
 void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty);
 unsigned long wb_calc_thresh(struct bdi_writeback *wb, unsigned long thresh);
 
-void __wb_update_bandwidth(struct bdi_writeback *wb,
-			   unsigned long thresh,
-			   unsigned long bg_thresh,
-			   unsigned long dirty,
-			   unsigned long bdi_thresh,
-			   unsigned long bdi_dirty,
-			   unsigned long start_time);
-
+void wb_update_bandwidth(struct bdi_writeback *wb, unsigned long start_time);
 void page_writeback_init(void);
 void balance_dirty_pages_ratelimited(struct address_space *mapping);