callout(9): adopt old references to timeout(9)

timeout(9) was removed a couple of years ago; all consumers now use the
callout(9) interface.

Explicitly do not bump .Dd anywhere, as this is not a content or
semantic change.

Reviewed by:	markj, jhb, Pau Amma <pauamma@gundo.com>
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D39136

share/man/man9/condvar.9

@@ -251,11 +251,11 @@ will fail if:
 Timeout expired.
 .El
 .Sh SEE ALSO
+.Xr callout 9 ,
 .Xr locking 9 ,
 .Xr mtx_pool 9 ,
 .Xr mutex 9 ,
 .Xr rwlock 9 ,
 .Xr sema 9 ,
 .Xr sleep 9 ,
-.Xr sx 9 ,
+.Xr sx 9
-.Xr timeout 9

share/man/man9/epoch.9

@@ -267,14 +267,14 @@ The
 .Nm
 kernel programming interface is under development and is subject to change.
 .Sh SEE ALSO
+.Xr callout 9 ,
 .Xr locking 9 ,
 .Xr mtx_pool 9 ,
 .Xr mutex 9 ,
 .Xr rwlock 9 ,
 .Xr sema 9 ,
 .Xr sleep 9 ,
-.Xr sx 9 ,
+.Xr sx 9
-.Xr timeout 9
 .Sh HISTORY
 The
 .Nm

share/man/man9/locking.9

@@ -422,6 +422,7 @@ At this time this is a rather easy to remember table.
 .Xr witness 4 ,
 .Xr atomic 9 ,
 .Xr BUS_SETUP_INTR 9 ,
+.Xr callout 9 ,
 .Xr condvar 9 ,
 .Xr epoch 9 ,
 .Xr lock 9 ,
@@ -433,7 +434,6 @@ At this time this is a rather easy to remember table.
 .Xr sema 9 ,
 .Xr sleep 9 ,
 .Xr smr 9 ,
-.Xr sx 9 ,
+.Xr sx 9
-.Xr timeout 9
 .Sh BUGS
 There are too many locking primitives to choose from.

share/man/man9/sleep.9

@@ -366,13 +366,13 @@ A non-zero timeout was specified and the timeout expired.
 .El
 .Sh SEE ALSO
 .Xr ps 1 ,
+.Xr callout 9 ,
 .Xr locking 9 ,
 .Xr malloc 9 ,
 .Xr mi_switch 9 ,
 .Xr mtx_sleep 9 ,
 .Xr rw_sleep 9 ,
-.Xr sx_sleep 9 ,
+.Xr sx_sleep 9
-.Xr timeout 9
 .Sh HISTORY
 The functions
 .Fn sleep

share/man/man9/sleepqueue.9

@@ -383,8 +383,8 @@ interfaces.
 Almost all other code in the kernel should use one of those interfaces rather
 than manipulating sleep queues directly.
 .Sh SEE ALSO
+.Xr callout 9 ,
 .Xr condvar 9 ,
 .Xr runqueue 9 ,
 .Xr scheduler 9 ,
-.Xr sleep 9 ,
+.Xr sleep 9
-.Xr timeout 9

share/man/man9/tvtohz.9

@@ -45,9 +45,9 @@ of system ticks that would elapse.
 Returns the integral number of system ticks expected to elapse in the given
 interval, including the current tick.
 .Sh SEE ALSO
+.Xr callout 9 ,
 .Xr microtime 9 ,
-.Xr microuptime 9 ,
+.Xr microuptime 9
-.Xr timeout 9
 .Sh HISTORY
 The
 .Nm

sys/kern/kern_timeout.c

@@ -728,7 +728,7 @@ softclock_call_cc(struct callout *c, struct callout_cpu *cc,
 		if (lastfunc != c_func || sbt2 > maxdt * 2) {
 			ts2 = sbttots(sbt2);
 			printf(
-		"Expensive timeout(9) function: %p(%p) %jd.%09ld s\n",
+		"Expensive callout(9) function: %p(%p) %jd.%09ld s\n",
 			    c_func, c_arg, (intmax_t)ts2.tv_sec, ts2.tv_nsec);
 		}
 		maxdt = sbt2;