- 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/sound/midi/midibuf.c b/sys/dev/sound/midi/midibuf.c
index 8b4eda7..f444405 100644
--- a/sys/dev/sound/midi/midibuf.c
+++ b/sys/dev/sound/midi/midibuf.c
@@ -358,7 +358,7 @@ queuerawdata(midi_dbuf *dbuf, char *data, int len)
 	/* Wake up the processes sleeping on input data. */
 	cv_broadcast(&dbuf->cv_in);
 	if (SEL_WAITING(&dbuf->sel) && dbuf->rl >= dbuf->blocksize)
-		selwakeup(&dbuf->sel);
+		selwakeuppri(&dbuf->sel, PRIBIO);
 }
 
 static void
@@ -399,5 +399,5 @@ deleterawdata(midi_dbuf *dbuf, int len)
 	/* Wake up the processes sleeping on queueing. */
 	cv_broadcast(&dbuf->cv_out);
 	if (SEL_WAITING(&dbuf->sel) && dbuf->fl >= dbuf->blocksize)
-		selwakeup(&dbuf->sel);
+		selwakeuppri(&dbuf->sel, PRIBIO);
 }