From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt

---
 kernel/kernel/sched/sched.h |   72 +----------------------------------
 1 files changed, 3 insertions(+), 69 deletions(-)

diff --git a/kernel/kernel/sched/sched.h b/kernel/kernel/sched/sched.h
index 61e804c..9e798c5 100644
--- a/kernel/kernel/sched/sched.h
+++ b/kernel/kernel/sched/sched.h
@@ -996,7 +996,6 @@
 	unsigned long		cpu_capacity_orig;
 
 	struct callback_head	*balance_callback;
-	unsigned char		balance_flags;
 
 	unsigned char		nohz_idle_balance;
 	unsigned char		idle_balance;
@@ -1027,10 +1026,6 @@
 
 	/* This is used to determine avg_idle's max value */
 	u64			max_idle_balance_cost;
-
-#ifdef CONFIG_HOTPLUG_CPU
-	struct rcuwait		hotplug_wait;
-#endif
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_IRQ_TIME_ACCOUNTING
@@ -1082,12 +1077,6 @@
 	/* Must be inspected within a rcu lock section */
 	struct cpuidle_state	*idle_state;
 #endif
-
-#ifdef CONFIG_SMP
-	unsigned int		nr_pinned;
-#endif
-	unsigned int		push_busy;
-	struct cpu_stop_work	push_work;
 
 	ANDROID_VENDOR_DATA_ARRAY(1, 96);
 	ANDROID_OEM_DATA_ARRAY(1, 16);
@@ -1286,9 +1275,6 @@
 	rq->clock_update_flags &= (RQCF_REQ_SKIP|RQCF_ACT_SKIP);
 	rf->clock_update_flags = 0;
 #endif
-#ifdef CONFIG_SMP
-	SCHED_WARN_ON(rq->balance_callback);
-#endif
 }
 
 static inline void rq_unpin_lock(struct rq *rq, struct rq_flags *rf)
@@ -1448,9 +1434,6 @@
 
 #ifdef CONFIG_SMP
 
-#define BALANCE_WORK	0x01
-#define BALANCE_PUSH	0x02
-
 extern int migrate_swap(struct task_struct *p, struct task_struct *t,
 			int cpu, int scpu);
 static inline void
@@ -1460,13 +1443,12 @@
 {
 	lockdep_assert_held(&rq->lock);
 
-	if (unlikely(head->next || (rq->balance_flags & BALANCE_PUSH)))
+	if (unlikely(head->next))
 		return;
 
 	head->func = (void (*)(struct callback_head *))func;
 	head->next = rq->balance_callback;
 	rq->balance_callback = head;
-	rq->balance_flags |= BALANCE_WORK;
 }
 
 #define rcu_dereference_check_sched_domain(p) \
@@ -1795,7 +1777,6 @@
 #define WF_FORK			0x02		/* Child wakeup after fork */
 #define WF_MIGRATED		0x04		/* Internal use, task got migrated */
 #define WF_ON_CPU		0x08		/* Wakee is on_cpu */
-#define WF_LOCK_SLEEPER		0x10		/* Wakeup spinlock "sleeper" */
 #define WF_ANDROID_VENDOR	0x1000		/* Vendor specific for Android */
 
 /*
@@ -1880,13 +1861,10 @@
 	void (*task_woken)(struct rq *this_rq, struct task_struct *task);
 
 	void (*set_cpus_allowed)(struct task_struct *p,
-				 const struct cpumask *newmask,
-				 u32 flags);
+				 const struct cpumask *newmask);
 
 	void (*rq_online)(struct rq *rq);
 	void (*rq_offline)(struct rq *rq);
-
-	struct rq *(*find_lock_rq)(struct task_struct *p, struct rq *rq);
 #endif
 
 	void (*task_tick)(struct rq *rq, struct task_struct *p, int queued);
@@ -1970,38 +1948,13 @@
 extern struct task_struct *pick_next_task_fair(struct rq *rq, struct task_struct *prev, struct rq_flags *rf);
 extern struct task_struct *pick_next_task_idle(struct rq *rq);
 
-#define SCA_CHECK		0x01
-#define SCA_MIGRATE_DISABLE	0x02
-#define SCA_MIGRATE_ENABLE	0x04
-
 #ifdef CONFIG_SMP
 
 extern void update_group_capacity(struct sched_domain *sd, int cpu);
 
 extern void trigger_load_balance(struct rq *rq);
 
-extern void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask, u32 flags);
-
-static inline struct task_struct *get_push_task(struct rq *rq)
-{
-	struct task_struct *p = rq->curr;
-
-	lockdep_assert_held(&rq->lock);
-
-	if (rq->push_busy)
-		return NULL;
-
-	if (p->nr_cpus_allowed == 1)
-		return NULL;
-
-	if (p->migration_disabled)
-		return NULL;
-
-	rq->push_busy = true;
-	return get_task_struct(p);
-}
-
-extern int push_cpu_stop(void *arg);
+extern void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask);
 
 extern unsigned long __read_mostly max_load_balance_interval;
 #endif
@@ -2045,15 +1998,6 @@
 
 extern void resched_curr(struct rq *rq);
 extern void resched_cpu(int cpu);
-
-#ifdef CONFIG_PREEMPT_LAZY
-extern void resched_curr_lazy(struct rq *rq);
-#else
-static inline void resched_curr_lazy(struct rq *rq)
-{
-	resched_curr(rq);
-}
-#endif
 
 extern struct rt_bandwidth def_rt_bandwidth;
 extern void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime);
@@ -2417,16 +2361,6 @@
 static inline void nohz_balance_exit_idle(struct rq *rq) { }
 #endif
 
-#define MDF_PUSH	0x01
-
-static inline bool is_migration_disabled(struct task_struct *p)
-{
-#ifdef CONFIG_SMP
-	return p->migration_disabled;
-#else
-	return false;
-#endif
-}
 
 #ifdef CONFIG_SMP
 static inline

--
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