ceph: close old con before reopening on mds reconnect

When we detect a mds session reset, close the old ceph_connection before
reopening it.  This ensures we clean up the old socket properly and keep
the ceph_connection state correct.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
Reviewed-by: Yehuda Sadeh <yehuda@inktank.com>
(cherry picked from commit a53aab645c82f0146e35684b34692c69b5118121)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 7f1682da29a7e785fe653a2d80483bd58ed43b44..95708dd092f1ef6f39837d0ed935ab6ea3aa03b1 100644 (file)
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2528,6 +2528,7 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
        session->s_state = CEPH_MDS_SESSION_RECONNECTING;
        session->s_seq = 0;
 
+       ceph_con_close(&session->s_con);
        ceph_con_open(&session->s_con,
                      CEPH_ENTITY_TYPE_MDS, mds,
                      ceph_mdsmap_get_addr(mdsc->mdsmap, mds));