Add a real API for dealing with blk_congestion_wait()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 9e38b56..0422036 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -85,6 +85,7 @@
void laptop_io_completion(void);
void laptop_sync_completion(void);
void throttle_vm_writeout(void);
+void writeback_congestion_end(void);
/* These are exported to sysctl. */
extern int dirty_background_ratio;