- Remove setrunqueue and replace it with direct calls to sched_add().

   setrunqueue() was mostly empty.  The few asserts and thread state
   setting were moved to the individual schedulers.  sched_add() was
   chosen to displace it for naming consistency reasons.
 - Remove adjustrunqueue, it was 4 lines of code that was ifdef'd to be
   different on all three schedulers where it was only called in one place
   each.
 - Remove the long ifdef'd out remrunqueue code.
 - Remove the now redundant ts_state.  Inspect the thread state directly.
 - Don't set TSF_* flags from kern_switch.c, we were only doing this to
   support a feature in one scheduler.
 - Change sched_choose() to return a thread rather than a td_sched.  Also,
   rely on the schedulers to return the idlethread.  This simplifies the
   logic in choosethread().  Aside from the run queue links kern_switch.c
   mostly does not care about the contents of td_sched.

Discussed with:	julian

 - Move the idle thread loop into the per scheduler area.  ULE wants to
   do something different from the other schedulers.

Suggested by:	jhb

Tested on:	x86/amd64 sched_{4BSD, ULE, CORE}.

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/kern/subr_turnstile.c b/sys/kern/subr_turnstile.c
index b1e9ee2..1bbdf83 100644
--- a/sys/kern/subr_turnstile.c
+++ b/sys/kern/subr_turnstile.c
@@ -875,7 +875,7 @@ turnstile_unpend(struct turnstile *ts, int owner_type)
 #endif
 			TD_CLR_LOCK(td);
 			MPASS(TD_CAN_RUN(td));
-			setrunqueue(td, SRQ_BORING);
+			sched_add(td, SRQ_BORING);
 		} else {
 			td->td_flags |= TDF_TSNOBLOCK;
 			MPASS(TD_IS_RUNNING(td) || TD_ON_RUNQ(td));