- Follow r216313, the sched_unlend_user_prio is no longer needed, always

  use sched_lend_user_prio to set lent priority.
- Improve pthread priority-inherit mutex, when a contender's priority is
  lowered, repropagete priorities, this may cause mutex owner's priority
  to be lowerd, in old code, mutex owner's priority is rise-only.

1 files changed, 2 insertions, 0 deletions

diff --git a/sys/kern/kern_resource.c b/sys/kern/kern_resource.c
index ec6b9cc..5bc3da5 100644
--- a/sys/kern/kern_resource.c
+++ b/sys/kern/kern_resource.c
@@ -489,8 +489,10 @@ rtp_to_pri(struct rtprio *rtp, struct thread *td)
 	if (curthread == td)
 		sched_prio(curthread, td->td_user_pri); /* XXX dubious */
 	if (TD_ON_UPILOCK(td) && oldpri != newpri) {
+		critical_enter();
 		thread_unlock(td);
 		umtx_pi_adjust(td, oldpri);
+		critical_exit();
 	} else
 		thread_unlock(td);
 	return (0);