- 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/kbd/kbd.c b/sys/dev/kbd/kbd.c
index 1e8785d..f5dd583 100644
--- a/sys/dev/kbd/kbd.c
+++ b/sys/dev/kbd/kbd.c
@@ -676,7 +676,7 @@ genkbd_event(keyboard_t *kbd, int event, void *arg)
 			sc->gkb_flags &= ~KB_ASLEEP;
 			wakeup(sc);
 		}
-		selwakeup(&sc->gkb_rsel);
+		selwakeuppri(&sc->gkb_rsel, PZERO);
 		return 0;
 	default:
 		return EINVAL;
@@ -747,7 +747,7 @@ genkbd_event(keyboard_t *kbd, int event, void *arg)
 			sc->gkb_flags &= ~KB_ASLEEP;
 			wakeup(sc);
 		}
-		selwakeup(&sc->gkb_rsel);
+		selwakeuppri(&sc->gkb_rsel, PZERO);
 	}
 
 	return 0;