PERFORCE change 145892 for review

[Ed Schouten]

http://perforce.freebsd.org/chv.cgi?CH=145892

Change 145892 by ed at ed_dull on 2008/07/25 14:52:30

	Small cleanups to tty_info.c to make it more in sync with the
	stock sources.

Affected files ...

.. //depot/projects/mpsafetty/sys/kern/tty_info.c#3 edit

Differences ...

==== //depot/projects/mpsafetty/sys/kern/tty_info.c#3 (text+ko) ====

@@ -41,13 +41,15 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
+__FBSDID("$FreeBSD: src/sys/kern/tty_info.c,v 1.1 2008/07/25 14:31:00 ed Exp $");
 
 #include <sys/param.h>
-#include <sys/systm.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
 #include <sys/proc.h>
 #include <sys/resourcevar.h>
 #include <sys/sched.h>
+#include <sys/systm.h>
 #include <sys/tty.h>
 
 #include <vm/vm.h>
@@ -205,6 +207,9 @@
 	return (p2->p_pid > p1->p_pid);		/* tie - return highest pid */
 }
 
+/*
+ * Report on state of foreground process group.
+ */
 void
 tty_info(struct tty *tp)
 {
@@ -227,25 +232,18 @@
 	load = (averunnable.ldavg[0] * 100 + FSCALE / 2) >> FSHIFT;
 	ttyprintf(tp, "load: %d.%02d ", load / 100, load % 100);
 
-	/*
-	 * On return following a ttyprintf(), we set tp->t_rocount to 0 so
-	 * that pending input will be retyped on BS.
-	 */
 	if (tp->t_session == NULL) {
 		ttyprintf(tp, "not a controlling terminal\n");
-		/*tp->t_rocount = 0;*/
 		return;
 	}
 	if (tp->t_pgrp == NULL) {
 		ttyprintf(tp, "no foreground process group\n");
-		/*tp->t_rocount = 0;*/
 		return;
 	}
 	PGRP_LOCK(tp->t_pgrp);
 	if (LIST_EMPTY(&tp->t_pgrp->pg_members)) {
 		PGRP_UNLOCK(tp->t_pgrp);
 		ttyprintf(tp, "empty foreground process group\n");
-		/*tp->t_rocount = 0;*/
 		return;
 	}
 
@@ -310,5 +308,4 @@
 	    (long)utime.tv_sec, utime.tv_usec / 10000,
 	    (long)stime.tv_sec, stime.tv_usec / 10000,
 	    pctcpu / 100, rss);
-	/*tp->t_rocount = 0;*/
 }