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/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index ecd7f15..5ac6434 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -394,8 +394,7 @@
 	s->s_seq = 0;
 	mutex_init(&s->s_mutex);
 
-	ceph_con_init(&s->s_con, s, &mds_con_ops, &mdsc->fsc->client->msgr,
-		CEPH_ENTITY_TYPE_MDS, mds);
+	ceph_con_init(&s->s_con, s, &mds_con_ops, &mdsc->fsc->client->msgr);
 
 	spin_lock_init(&s->s_gen_ttl_lock);
 	s->s_cap_gen = 0;
@@ -437,7 +436,8 @@
 	mdsc->sessions[mds] = s;
 	atomic_inc(&s->s_ref);  /* one ref to sessions[], one to caller */
 
-	ceph_con_open(&s->s_con, ceph_mdsmap_get_addr(mdsc->mdsmap, mds));
+	ceph_con_open(&s->s_con, CEPH_ENTITY_TYPE_MDS, mds,
+		      ceph_mdsmap_get_addr(mdsc->mdsmap, mds));
 
 	return s;
 
@@ -2529,6 +2529,7 @@
 	session->s_seq = 0;
 
 	ceph_con_open(&session->s_con,
+		      CEPH_ENTITY_TYPE_MDS, mds,
 		      ceph_mdsmap_get_addr(mdsc->mdsmap, mds));
 
 	/* replay unsafe requests */