Branch HEAD

b=14995
i=wangdi, rread

send activate event only for evicted imports.

lustre/ptlrpc/import.c

@@ -644,7 +644,14 @@ static int ptlrpc_connect_interpret(struct ptlrpc_request *request,
                                 *lustre_msg_get_handle(request->rq_repmsg);
 
                 IMPORT_SET_STATE(imp, LUSTRE_IMP_FULL);
-                ptlrpc_activate_import(imp);
+                spin_lock(&imp->imp_lock);
+                if (imp->imp_invalid) {
+                        spin_unlock(&imp->imp_lock);
+                        ptlrpc_activate_import(imp);
+                } else {
+                        spin_unlock(&imp->imp_lock);
+                }
+
                 GOTO(finish, rc = 0);
         } else {
                 spin_unlock(&imp->imp_lock);