xenbus: add missing wakeup in concurrent read/write

[pandora-kernel.git] / drivers / xen / xenfs / xenbus.c

diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenfs/xenbus.c
index 46cf404..c4c7db8 100644 (file)
--- 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);
        }