unp_scan          854 kern/uipc_usrreq.c 			unp_scan(so->so_rcv.sb_mb, unp_mark, 0);
unp_scan          923 kern/uipc_usrreq.c 		unp_scan(m, unp_discard, 1);
unp_scan           61 sys/un.h       void	unp_scan(struct mbuf *m0, void (*op)(struct file *), int);