lookup_noperm_common
int lookup_noperm_common(struct qstr *qname, struct dentry *base);
err = lookup_noperm_common(&qname, parent);
err = lookup_noperm_common(qname, base);
err = lookup_noperm_common(name, base);
err = lookup_noperm_common(name, base);
err = lookup_noperm_common(name, base);
int err = lookup_noperm_common(name, parent);
int err = lookup_noperm_common(name, parent);