ceph: drop messages on unregistered mds sessions; cleanup

Verify the mds session is currently registered before handling
incoming messages.  Clean up message handlers to pull mds out
of session->s_mds instead of less trustworthy src field.

Clean up con_{get,put} debug output.

Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index b6154ffe70df..bb846164addc 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2600,7 +2600,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
         struct inode *inode;
         struct ceph_cap *cap;
         struct ceph_mds_caps *h;
-        int mds = le64_to_cpu(msg->hdr.src.name.num);
+        int mds = session->s_mds;
         int op;
         u32 seq;
         struct ceph_vino vino;