- 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/usb/ugen.c b/sys/dev/usb/ugen.c
index bf73938..8740c3d 100644
--- a/sys/dev/usb/ugen.c
+++ b/sys/dev/usb/ugen.c
@@ -945,7 +945,7 @@ ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
 		DPRINTFN(5, ("ugen_intr: waking %p\n", sce));
 		wakeup(sce);
 	}
-	selwakeup(&sce->rsel);
+	selwakeuppri(&sce->rsel, PZERO);
 }
 
 Static void
@@ -1005,7 +1005,7 @@ ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr,
 		DPRINTFN(5, ("ugen_isoc_rintr: waking %p\n", sce));
 		wakeup(sce);
 	}
-	selwakeup(&sce->rsel);
+	selwakeuppri(&sce->rsel, PZERO);
 }
 
 Static usbd_status