static inline int handle_dots(struct nameidata *nd, int type)
{
	if (type == LAST_DOTDOT) {
		if (nd->flags & LOOKUP_RCU) {
			return follow_dotdot_rcu(nd);
		} else
			return follow_dotdot(nd);
	}
	return 0;
}
Software security is not security software. Here we're concerned with topics like authentication, access control, confidentiality, cryptography, and privilege management.