1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenfs/xenbus.c
index 46cf4048e60e..c4c7db8363e7 100644
--- a/drivers/xen/xenfs/xenbus.c
+++ b/drivers/xen/xenfs/xenbus.c
@@ -405,6 +405,7 @@ static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u)
 
                 mutex_lock(&u->reply_mutex);
                 rc = queue_reply(&u->read_buffers, &reply, sizeof(reply));
+                wake_up(&u->read_waitq);
                 mutex_unlock(&u->reply_mutex);
         }