prev_root        2029 kernel/locking/lockdep.c 			 struct lock_list *prev_root,
prev_root        2085 kernel/locking/lockdep.c 	prev_root->trace = save_trace();
prev_root        2086 kernel/locking/lockdep.c 	if (!prev_root->trace)
prev_root        2088 kernel/locking/lockdep.c 	print_shortest_lock_dependencies(backwards_entry, prev_root);