libceph: init monitor connection when opening

(cherry picked from commit 20581c1faf7b15ae1f8b80c0ec757877b0b53151)

Hold off initializing a monitor client's connection until just
before it gets opened for use.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index bbb2c66..1b03493 100644 (file)
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -119,6 +119,7 @@ static void __close_session(struct ceph_mon_client *monc)
        dout("__close_session closing mon%d\n", monc->cur_mon);
        ceph_con_revoke(&monc->con, monc->m_auth);
        ceph_con_close(&monc->con);
+       monc->con.private = NULL;
        monc->cur_mon = -1;
        monc->pending_auth = 0;
        ceph_auth_reset(monc->auth);
@@ -141,9 +142,13 @@ static int __open_session(struct ceph_mon_client *monc)
                monc->sub_renew_after = jiffies;  /* i.e., expired */
                monc->want_next_osdmap = !!monc->want_next_osdmap;
 
-               dout("open_session mon%d opening\n", monc->cur_mon);
+               ceph_con_init(&monc->client->msgr, &monc->con);
+               monc->con.private = monc;
+               monc->con.ops = &mon_con_ops;
                monc->con.peer_name.type = CEPH_ENTITY_TYPE_MON;
                monc->con.peer_name.num = cpu_to_le64(monc->cur_mon);
+
+               dout("open_session mon%d opening\n", monc->cur_mon);
                ceph_con_open(&monc->con,
                              &monc->monmap->mon_inst[monc->cur_mon].addr);
 
@@ -760,10 +765,6 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
                goto out;
 
        /* connection */
-       ceph_con_init(&monc->client->msgr, &monc->con);
-       monc->con.private = monc;
-       monc->con.ops = &mon_con_ops;
-
        /* authentication */
        monc->auth = ceph_auth_init(cl->options->name,
                                    cl->options->key);
@@ -836,8 +837,6 @@ void ceph_monc_stop(struct ceph_mon_client *monc)
        mutex_lock(&monc->mutex);
        __close_session(monc);
 
-       monc->con.private = NULL;
-
        mutex_unlock(&monc->mutex);
 
        /*