diff options
Diffstat (limited to 'sys/kern/kern_condvar.c')
| -rw-r--r-- | sys/kern/kern_condvar.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sys/kern/kern_condvar.c b/sys/kern/kern_condvar.c index 3344123..d95d9e2 100644 --- a/sys/kern/kern_condvar.c +++ b/sys/kern/kern_condvar.c @@ -525,14 +525,21 @@ cv_signal(struct cv *cvp) * Should be called with the same mutex as was passed to cv_wait held. */ void -cv_broadcast(struct cv *cvp) +cv_broadcastpri(struct cv *cvp, int pri) { + struct thread *td; KASSERT(cvp != NULL, ("%s: cvp NULL", __func__)); mtx_lock_spin(&sched_lock); CV_SIGNAL_VALIDATE(cvp); - while (!TAILQ_EMPTY(&cvp->cv_waitq)) + while (!TAILQ_EMPTY(&cvp->cv_waitq)) { + if (pri >= PRI_MIN && pri <= PRI_MAX) { + td = TAILQ_FIRST(&cvp->cv_waitq); + if (td->td_priority > pri) + td->td_priority = pri; + } cv_wakeup(cvp); + } mtx_unlock_spin(&sched_lock); } |
