rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST

Also directly call swapper() at the end of mi_startup instead of
relying on swapper being the last thing in sysinits order.

Rationale:

- "RUN_SCHEDULER" was misleading, scheduling already takes place at that stage
- "scheduler" was misleading, the function swaps in the swapped out processes
- another SYSINIT(SI_SUB_RUN_SCHEDULER, SI_ORDER_ANY) could never be
  invoked depending on its relative order with scheduler; this was not obvious
  and the bug actually used to exist

Reviewed by:	kib (ealier version)
MFC after:	14 days

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/vm/vm.h b/sys/vm/vm.h
index bfb4a60..d87495d 100644
--- a/sys/vm/vm.h
+++ b/sys/vm/vm.h
@@ -147,6 +147,7 @@ int swap_reserve_by_cred(vm_ooffset_t incr, struct ucred *cred);
 void swap_reserve_force(vm_ooffset_t incr);
 void swap_release(vm_ooffset_t decr);
 void swap_release_by_cred(vm_ooffset_t decr, struct ucred *cred);
+void swapper(void);
 
 #endif				/* VM_H */