- 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, 2 insertions, 3 deletions

diff --git a/sys/kern/kern_idle.c b/sys/kern/kern_idle.c
index 62d9704..5644d8f 100644
--- a/sys/kern/kern_idle.c
+++ b/sys/kern/kern_idle.c
@@ -58,7 +58,7 @@ idle_setup(void *dummy)
 		p->p_flag |= P_NOLOAD;
 		mtx_lock_spin(&sched_lock);
 		td = FIRST_THREAD_IN_PROC(p);
-		td->td_state = TDS_CAN_RUN;
+		TD_SET_CAN_RUN(td);
 		td->td_flags |= TDF_IDLETD;
 		td->td_priority = PRI_MAX_IDLE;
 		mtx_unlock_spin(&sched_lock);
@@ -86,8 +86,7 @@ idle_proc(void *dummy)
 			cpu_idle();
 
 		mtx_lock_spin(&sched_lock);
-		td->td_state = TDS_CAN_RUN;
-		mi_switch(SW_VOL);
+		mi_switch(SW_VOL, NULL);
 		mtx_unlock_spin(&sched_lock);
 	}
 }