D25588.id74175.diff
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	Index: sys/compat/linprocfs/linprocfs.c
	===================================================================
	--- sys/compat/linprocfs/linprocfs.c
	+++ sys/compat/linprocfs/linprocfs.c
	@@ -767,6 +767,36 @@
	return (0);
	}

	+static int
	+linprocfs_get_tty_nr(struct proc *p)
	+{
	+ struct session *sp;
	+ struct tty *tp;
	+ const char *ttyname;
	+ int error, major, minor, nr;
	+
	+ PROC_LOCK_ASSERT(p, MA_OWNED);
	+
	+ if ((p->p_flag & P_CONTROLT) == 0)
	+ return (-1);
	+
	+ sp = p->p_pgrp->pg_session;
	+ if (sp == NULL)
	+ return (-1);
	+
	+ SESS_LOCK(sp);
	+ tp = sp->s_ttyp;
	+ SESS_UNLOCK(sp);
	+
	+ ttyname = devtoname(tp->t_dev);
	+ error = linux_driver_get_major_minor(ttyname, &major, &minor);
	+ if (error != 0)
	+ return (-1);
	+
	+ nr = makedev(major, minor);
	+ return (nr);
	+}
	+
	/*
	* Filler function for proc/pid/stat
	*/
	@@ -777,6 +807,7 @@
	struct timeval boottime;
	char state;
	static int ratelimit = 0;
	+ int tty_nr;
	vm_offset_t startcode, startdata;

	getboottime(&boottime);
	@@ -808,11 +839,9 @@
	PS_ADD("ppid", "%d", p->p_pptr ? p->p_pptr->p_pid : 0);
	PS_ADD("pgrp", "%d", p->p_pgid);
	PS_ADD("session", "%d", p->p_session->s_sid);
	+ tty_nr = linprocfs_get_tty_nr(p);
	PROC_UNLOCK(p);
	- if (kp.ki_tdev == NODEV)
	- PS_ADD("tty", "%s", "-1");
	- else
	- PS_ADD("tty", "%ju", (uintmax_t)kp.ki_tdev);
	+ PS_ADD("tty", "%d", tty_nr);
	PS_ADD("tpgid", "%d", kp.ki_tpgid);
	PS_ADD("flags", "%u", 0); /* XXX */
	PS_ADD("minflt", "%lu", kp.ki_rusage.ru_minflt);