forward_mask     2230 kernel/locking/lockdep.c 	unsigned long usage_mask = 0, forward_mask, backward_mask;
forward_mask     2258 kernel/locking/lockdep.c 	forward_mask = exclusive_mask(usage_mask);
forward_mask     2263 kernel/locking/lockdep.c 	ret = find_usage_forwards(&that, forward_mask, &target_entry1);