Index: linux-2.6.19-rc4-mm2/include/linux/interrupt.h
===================================================================
--- linux-2.6.19-rc4-mm2.orig/include/linux/interrupt.h	2006-11-10 21:13:22.000000000 -0600
+++ linux-2.6.19-rc4-mm2/include/linux/interrupt.h	2006-11-10 22:45:29.403054884 -0600
@@ -237,6 +237,7 @@ enum
 	NET_RX_SOFTIRQ,
 	BLOCK_SOFTIRQ,
 	TASKLET_SOFTIRQ,
+	SCHED_SOFTIRQ,
 #ifdef CONFIG_HIGH_RES_TIMERS
 	HRTIMER_SOFTIRQ,
 #endif
Index: linux-2.6.19-rc4-mm2/kernel/sched.c
===================================================================
--- linux-2.6.19-rc4-mm2.orig/kernel/sched.c	2006-11-10 22:45:20.000000000 -0600
+++ linux-2.6.19-rc4-mm2/kernel/sched.c	2006-11-10 22:46:29.518549748 -0600
@@ -2857,8 +2857,7 @@ static void update_load(struct rq *this_
 }
 
 /*
- * rebalance_domains is triggered when needed via a tasklet from the
- * scheduler tick.
+ * rebalance_domains is triggered when needed from the scheduler tick.
  *
  * It checks each scheduling domain to see if it is due to be balanced,
  * and initiates a balancing operation if so.
@@ -2866,7 +2865,7 @@ static void update_load(struct rq *this_
  * Balancing parameters are set up in arch_init_sched_domains.
  */
 
-static void rebalance_domains(unsigned long dummy)
+static void run_rebalance_domains(struct softirq_action *h)
 {
 	int this_cpu = smp_processor_id();
 	struct rq *this_rq = cpu_rq(this_cpu);
@@ -2918,8 +2917,6 @@ static void rebalance_domains(unsigned l
 	}
 	this_rq->next_balance = next_balance;
 }
-
-DECLARE_TASKLET(rebalance, &rebalance_domains, 0L);
 #else
 /*
  * on UP we do not need to balance between CPUs:
@@ -3172,7 +3169,7 @@ void scheduler_tick(void)
 #ifdef CONFIG_SMP
 	update_load(rq);
 	if (time_after_eq(jiffies, rq->next_balance))
-		tasklet_schedule(&rebalance);
+		raise_softirq(SCHED_SOFTIRQ);
 #endif
 }
 
@@ -6902,7 +6899,7 @@ void __init sched_init_smp(void)
 	unlock_cpu_hotplug();
 	/* XXX: Theoretical race here - CPU may be hotplugged now */
 	hotcpu_notifier(update_sched_domains, 0);
-
+	open_softirq(SCHED_SOFTIRQ, run_rebalance_domains, NULL);
 	init_sched_domain_sysctl();
 
 	/* Move init over to a non-isolated CPU */