[ 132/171] ceph: close old con before reopening on mds reconnect

[Greg Kroah-Hartman]

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Sage Weil <sage@xxxxxxxxxxx>

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@xxxxxxxxxxx>
Reviewed-by: Alex Elder <elder@xxxxxxxxxxx>
Reviewed-by: Yehuda Sadeh <yehuda@xxxxxxxxxxx>
(cherry picked from commit a53aab645c82f0146e35684b34692c69b5118121)
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/ceph/mds_client.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2528,6 +2528,7 @@ static void send_mds_reconnect(struct ce
 	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));


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