- Implement a mechanism for allowing schedulers to place scheduler dependant

   data in the scheduler independant structures (proc, ksegrp, kse, thread).
 - Implement unused stubs for this mechanism in sched_4bsd.

Approved by:	re
Reviewed by:	luigi, trb
Tested on:	x86, alpha

1 files changed, 25 insertions, 0 deletions

diff --git a/sys/kern/sched_4bsd.c b/sys/kern/sched_4bsd.c
index c57262f..236a3c7 100644
--- a/sys/kern/sched_4bsd.c
+++ b/sys/kern/sched_4bsd.c
@@ -51,6 +51,10 @@
 #include <sys/sysctl.h>
 #include <sys/sx.h>
 
+struct ke_sched *kse0_sched = NULL;
+struct kg_sched *ksegrp0_sched = NULL;
+struct p_sched *proc0_sched = NULL;
+struct td_sched *thread0_sched = NULL;
 
 static int	sched_quantum;	/* Roundrobin scheduling quantum in ticks. */
 #define	SCHED_QUANTUM	(hz / 10);	/* Default sched quantum */
@@ -618,3 +622,24 @@ sched_userret(struct thread *td)
 		mtx_unlock_spin(&sched_lock);
 	}
 }
+
+int
+sched_sizeof_kse(void)
+{
+	return (sizeof(struct kse));
+}
+int
+sched_sizeof_ksegrp(void)
+{
+	return (sizeof(struct ksegrp));
+}
+int
+sched_sizeof_proc(void)
+{
+	return (sizeof(struct proc));
+}
+int
+sched_sizeof_thread(void)
+{
+	return (sizeof(struct thread));
+}