libceph: define and use an explicit CONNECTED state

There is no state explicitly defined when a ceph connection is fully
operational.  So define one.

It's set when the connection sequence completes successfully, and is
cleared when the connection gets closed.

Be a little more careful when examining the old state when a socket
disconnect event is reported.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index cc6f9bdcf466..002d504df3b7 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -120,6 +120,7 @@ struct ceph_msg_pos {
  */
 #define CONNECTING      1
 #define NEGOTIATING     2
+#define CONNECTED       5
 #define STANDBY         8  /* no outgoing messages, socket closed.  we keep
                             * the ceph_connection around to maintain shared
                             * state with the peer. */