cephfs: session tracker accounts for killing sessions

Fixes: https://tracker.ceph.com/issues/70770
Signed-off-by: Abhishek Lekshmanan <[email protected]>

Author: theanalyst

src/mds/SessionMap.cc

@@ -1091,9 +1091,11 @@ int Session::check_access(CInode *in, unsigned mask,
 
 // track total and per session load
 void SessionMap::hit_session(Session *session) {
-  uint64_t sessions = get_session_count_in_state(Session::STATE_OPEN) +
+  uint64_t sessions = get_session_count_in_state(Session::STATE_OPENING) +
+                      get_session_count_in_state(Session::STATE_OPEN) +
                       get_session_count_in_state(Session::STATE_STALE) +
-                      get_session_count_in_state(Session::STATE_CLOSING);
+                      get_session_count_in_state(Session::STATE_CLOSING) +
+                      get_session_count_in_state(Session::STATE_KILLING);
   ceph_assert(sessions != 0);
 
   double total_load = total_load_avg.hit();