--- a/kernel/sched/MuQSS.c
+++ b/kernel/sched/MuQSS.c
@@ -37,0 +38 @@
+#include <linux/wait_bit.h>
@@ -1706,8 +1707,2 @@ void sched_ttwu_pending(void)
-	while (llist) {
-		int wake_flags = 0;
-
-		p = llist_entry(llist, struct task_struct, wake_entry);
-		llist = llist_next(llist);
-
-		ttwu_do_activate(rq, p, wake_flags);
-	}
+	llist_for_each_entry_safe(p, t, llist, wake_entry)
+		ttwu_do_activate(rq, p, 0);
@@ -6194,3 +6188,0 @@ int sched_cpu_deactivate(unsigned int cpu)
-	 * For CONFIG_PREEMPT we have preemptible RCU and its sync_rcu() might
-	 * not imply sync_sched(), so wait for both.
-	 *
@@ -6199,4 +6191 @@ int sched_cpu_deactivate(unsigned int cpu)
-	if (IS_ENABLED(CONFIG_PREEMPT))
-		synchronize_rcu_mult(call_rcu, call_rcu_sched);
-	else
-		synchronize_rcu();
+	synchronize_rcu_mult(call_rcu, call_rcu_sched);
@@ -6298 +6286,0 @@ void __init sched_init_smp(void)
-	alloc_cpumask_var(&fallback_doms, GFP_KERNEL);
@@ -6402 +6389,0 @@ void __init sched_init_smp(void)
-	sched_clock_init_late();
@@ -6409 +6395,0 @@ void __init sched_init_smp(void)
-	sched_clock_init_late();
@@ -6445,13 +6430,0 @@ static struct kmem_cache *task_group_cache __read_mostly;
-#define WAIT_TABLE_BITS 8
-#define WAIT_TABLE_SIZE (1 << WAIT_TABLE_BITS)
-static wait_queue_head_t bit_wait_table[WAIT_TABLE_SIZE] __cacheline_aligned;
-
-wait_queue_head_t *bit_waitqueue(void *word, int bit)
-{
-	const int shift = BITS_PER_LONG == 32 ? 5 : 6;
-	unsigned long val = (unsigned long)word << shift | bit;
-
-	return bit_wait_table + hash_long(val, WAIT_TABLE_BITS);
-}
-EXPORT_SYMBOL(bit_waitqueue);
-
@@ -6468,2 +6441 @@ void __init sched_init(void)
-	for (i = 0; i < WAIT_TABLE_SIZE; i++)
-		init_waitqueue_head(bit_wait_table + i);
+	wait_bit_init();
@@ -504 +502,5 @@ struct sched_group_capacity {
-	unsigned long cpumask[0]; /* iteration mask */
+#ifdef CONFIG_SCHED_DEBUG
+	int id;
+#endif
+
+	unsigned long cpumask[0]; /* balance mask */
@@ -531,2 +533 @@ static inline struct cpumask *sched_group_cpus(struct sched_group *sg)
- * cpumask masking which cpus in the group are allowed to iterate up the domain
- * tree.
+ * See build_balance_mask().