libceph: set peer name on con_open, not init

The peer name may change on each open attempt, even when the connection is
reused.

Signed-off-by: Sage Weil <sage@inktank.com>
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index dcc50e4..ae082d9 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -523,12 +523,17 @@
 /*
  * Reopen a closed connection, with a new peer address.
  */
-void ceph_con_open(struct ceph_connection *con, struct ceph_entity_addr *addr)
+void ceph_con_open(struct ceph_connection *con,
+		   __u8 entity_type, __u64 entity_num,
+		   struct ceph_entity_addr *addr)
 {
 	dout("con_open %p %s\n", con, ceph_pr_addr(&addr->in_addr));
 	set_bit(OPENING, &con->state);
 	WARN_ON(!test_and_clear_bit(CLOSED, &con->state));
 
+	con->peer_name.type = (__u8) entity_type;
+	con->peer_name.num = cpu_to_le64(entity_num);
+
 	memcpy(&con->peer_addr, addr, sizeof(*addr));
 	con->delay = 0;      /* reset backoff memory */
 	queue_con(con);
@@ -548,7 +553,7 @@
  */
 void ceph_con_init(struct ceph_connection *con, void *private,
 	const struct ceph_connection_operations *ops,
-	struct ceph_messenger *msgr, __u8 entity_type, __u64 entity_num)
+	struct ceph_messenger *msgr)
 {
 	dout("con_init %p\n", con);
 	memset(con, 0, sizeof(*con));
@@ -558,9 +563,6 @@
 
 	con_sock_state_init(con);
 
-	con->peer_name.type = (__u8) entity_type;
-	con->peer_name.num = cpu_to_le64(entity_num);
-
 	mutex_init(&con->mutex);
 	INIT_LIST_HEAD(&con->out_queue);
 	INIT_LIST_HEAD(&con->out_sent);