ceph: wake up mount thread when getting osdmap

Now that the mount thread waits for the osdmap, it needs
to be awaken.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
diff --git a/fs/ceph/osd_client.c b/fs/ceph/osd_client.c
index a44b3b6..b81e6f9 100644
--- a/fs/ceph/osd_client.c
+++ b/fs/ceph/osd_client.c
@@ -1078,6 +1078,7 @@
 	if (newmap)
 		kick_requests(osdc, NULL);
 	up_read(&osdc->map_sem);
+	wake_up(&osdc->client->auth_wq);
 	return;
 
 bad: