39 static struct ocfs2_stack_plugin *active_stack;  variable
72 	if (active_stack) {  in ocfs2_stack_driver_request()
77 		if (!strcmp(active_stack->sp_name, plugin_name))  in ocfs2_stack_driver_request()
90 	active_stack = p;  in ocfs2_stack_driver_request()
96 		active_stack->sp_count++;  in ocfs2_stack_driver_request()
151 	BUG_ON(active_stack == NULL);  in ocfs2_stack_driver_put()
152 	BUG_ON(active_stack->sp_count == 0);  in ocfs2_stack_driver_put()
154 	active_stack->sp_count--;  in ocfs2_stack_driver_put()
155 	if (!active_stack->sp_count) {  in ocfs2_stack_driver_put()
156 		module_put(active_stack->sp_owner);  in ocfs2_stack_driver_put()
157 		active_stack = NULL;  in ocfs2_stack_driver_put()
193 		BUG_ON(plugin == active_stack);  in ocfs2_stack_glue_unregister()
242 	return active_stack->sp_ops->dlm_lock(conn, mode, lksb, flags,  in ocfs2_dlm_lock()
253 	return active_stack->sp_ops->dlm_unlock(conn, lksb, flags);  in ocfs2_dlm_unlock()
259 	return active_stack->sp_ops->lock_status(lksb);  in ocfs2_dlm_lock_status()
265 	return active_stack->sp_ops->lvb_valid(lksb);  in ocfs2_dlm_lvb_valid()
271 	return active_stack->sp_ops->lock_lvb(lksb);  in ocfs2_dlm_lvb()
277 	active_stack->sp_ops->dump_lksb(lksb);  in ocfs2_dlm_dump_lksb()
283 	return active_stack && active_stack->sp_ops->plock;  in ocfs2_stack_supports_plocks()
294 	WARN_ON_ONCE(active_stack->sp_ops->plock == NULL);  in ocfs2_plock()
295 	if (active_stack->sp_ops->plock)  in ocfs2_plock()
296 		return active_stack->sp_ops->plock(conn, ino, file, cmd, fl);  in ocfs2_plock()
355 	rc = active_stack->sp_ops->connect(new_conn);  in ocfs2_cluster_connect()
399 	ret = active_stack->sp_ops->disconnect(conn);  in ocfs2_cluster_disconnect()
463 	return active_stack->sp_ops->this_node(conn, node);  in ocfs2_cluster_this_node()
527 	if (active_stack) {  in ocfs2_active_cluster_plugin_show()
529 			       active_stack->sp_name);  in ocfs2_active_cluster_plugin_show()
572 	if (active_stack) {  in ocfs2_cluster_stack_store()