- Implement selwakeuppri() which allows raising the priority of a

  thread being waken up.  The thread waken up can run at a priority as
  high as after tsleep().

- Replace selwakeup()s with selwakeuppri()s and pass appropriate
  priorities.

- Add cv_broadcastpri() which raises the priority of the broadcast
  threads.  Used by selwakeuppri() if collision occurs.

Not objected in:	-arch, -current

1 files changed, 2 insertions, 2 deletions

diff --git a/sys/dev/nmdm/nmdm.c b/sys/dev/nmdm/nmdm.c
index 1511e9b2c987..3227b11f34e4 100644
--- a/sys/dev/nmdm/nmdm.c
+++ b/sys/dev/nmdm/nmdm.c
@@ -451,11 +451,11 @@ wakeup_other(struct tty *tp, int flag)
 
 	GETPARTS(tp, ourpart, otherpart);
 	if (flag & FREAD) {
-		selwakeup(&otherpart->nm_tty.t_rsel);
+		selwakeuppri(&otherpart->nm_tty.t_rsel, TTIPRI);
 		wakeup(TSA_PTC_READ((&otherpart->nm_tty)));
 	}
 	if (flag & FWRITE) {
-		selwakeup(&otherpart->nm_tty.t_wsel);
+		selwakeuppri(&otherpart->nm_tty.t_wsel, TTOPRI);
 		wakeup(TSA_PTC_WRITE((&otherpart->nm_tty)));
 	}
 }