- Change mi_switch() and sched_switch() to accept an optional thread to

  switch to.  If a non-NULL thread pointer is passed in, then the CPU will
  switch to that thread directly rather than calling choosethread() to pick
  a thread to choose to.
- Make sched_switch() aware of idle threads and know to do
  TD_SET_CAN_RUN() instead of sticking them on the run queue rather than
  requiring all callers of mi_switch() to know to do this if they can be
  called from an idlethread.
- Move constants for arguments to mi_switch() and thread_single() out of
  the middle of the function prototypes and up above into their own
  section.

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/kern/kern_subr.c b/sys/kern/kern_subr.c
index d662f5e..7ccccdd 100644
--- a/sys/kern/kern_subr.c
+++ b/sys/kern/kern_subr.c
@@ -430,7 +430,7 @@ uio_yield(void)
 	mtx_lock_spin(&sched_lock);
 	DROP_GIANT();
 	sched_prio(td, td->td_ksegrp->kg_user_pri); /* XXXKSE */
-	mi_switch(SW_INVOL);
+	mi_switch(SW_INVOL, NULL);
 	mtx_unlock_spin(&sched_lock);
 	PICKUP_GIANT();
 }