sched: Make separate sched*.c translation units

Since once needs to do something at conferences and fixing compile
warnings doesn't actually require much if any attention I decided
to break up the sched.c #include "*.c" fest.

This further modularizes the scheduler code.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-x0fcd3mnp8f9c99grcpewmhi@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 55 insertions, 1773 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index c9e3ab6e299..2ffcceed886 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -56,7 +56,6 @@
 #include <linux/percpu.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-#include <linux/stop_machine.h>
 #include <linux/sysctl.h>
 #include <linux/syscalls.h>
 #include <linux/times.h>
@@ -72,133 +71,20 @@
 #include <linux/ftrace.h>
 #include <linux/slab.h>
 #include <linux/init_task.h>
-#include <linux/jump_label.h>
 
 #include <asm/tlb.h>
 #include <asm/irq_regs.h>
-#include <asm/mutex.h>
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #endif
 
-#include "sched_cpupri.h"
+#include "sched.h"
 #include "workqueue_sched.h"
-#include "sched_autogroup.h"
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/sched.h>
 
-/*
- * Convert user-nice values [ -20 ... 0 ... 19 ]
- * to static priority [ MAX_RT_PRIO..MAX_PRIO-1 ],
- * and back.
- */
-#define NICE_TO_PRIO(nice)	(MAX_RT_PRIO + (nice) + 20)
-#define PRIO_TO_NICE(prio)	((prio) - MAX_RT_PRIO - 20)
-#define TASK_NICE(p)		PRIO_TO_NICE((p)->static_prio)
-
-/*
- * 'User priority' is the nice value converted to something we
- * can work with better when scaling various scheduler parameters,
- * it's a [ 0 ... 39 ] range.
- */
-#define USER_PRIO(p)		((p)-MAX_RT_PRIO)
-#define TASK_USER_PRIO(p)	USER_PRIO((p)->static_prio)
-#define MAX_USER_PRIO		(USER_PRIO(MAX_PRIO))
-
-/*
- * Helpers for converting nanosecond timing to jiffy resolution
- */
-#define NS_TO_JIFFIES(TIME)	((unsigned long)(TIME) / (NSEC_PER_SEC / HZ))
-
-#define NICE_0_LOAD		SCHED_LOAD_SCALE
-#define NICE_0_SHIFT		SCHED_LOAD_SHIFT
-
-/*
- * These are the 'tuning knobs' of the scheduler:
- *
- * default timeslice is 100 msecs (used only for SCHED_RR tasks).
- * Timeslices get refilled after they expire.
- */
-#define DEF_TIMESLICE		(100 * HZ / 1000)
-
-/*
- * single value that denotes runtime == period, ie unlimited time.
- */
-#define RUNTIME_INF	((u64)~0ULL)
-
-static inline int rt_policy(int policy)
-{
-	if (policy == SCHED_FIFO || policy == SCHED_RR)
-		return 1;
-	return 0;
-}
-
-static inline int task_has_rt_policy(struct task_struct *p)
-{
-	return rt_policy(p->policy);
-}
-
-/*
- * This is the priority-queue data structure of the RT scheduling class:
- */
-struct rt_prio_array {
-	DECLARE_BITMAP(bitmap, MAX_RT_PRIO+1); /* include 1 bit for delimiter */
-	struct list_head queue[MAX_RT_PRIO];
-};
-
-struct rt_bandwidth {
-	/* nests inside the rq lock: */
-	raw_spinlock_t		rt_runtime_lock;
-	ktime_t			rt_period;
-	u64			rt_runtime;
-	struct hrtimer		rt_period_timer;
-};
-
-static struct rt_bandwidth def_rt_bandwidth;
-
-static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun);
-
-static enum hrtimer_restart sched_rt_period_timer(struct hrtimer *timer)
-{
-	struct rt_bandwidth *rt_b =
-		container_of(timer, struct rt_bandwidth, rt_period_timer);
-	ktime_t now;
-	int overrun;
-	int idle = 0;
-
-	for (;;) {
-		now = hrtimer_cb_get_time(timer);
-		overrun = hrtimer_forward(timer, now, rt_b->rt_period);
-
-		if (!overrun)
-			break;
-
-		idle = do_sched_rt_period_timer(rt_b, overrun);
-	}
-
-	return idle ? HRTIMER_NORESTART : HRTIMER_RESTART;
-}
-
-static
-void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime)
-{
-	rt_b->rt_period = ns_to_ktime(period);
-	rt_b->rt_runtime = runtime;
-
-	raw_spin_lock_init(&rt_b->rt_runtime_lock);
-
-	hrtimer_init(&rt_b->rt_period_timer,
-			CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	rt_b->rt_period_timer.function = sched_rt_period_timer;
-}
-
-static inline int rt_bandwidth_enabled(void)
-{
-	return sysctl_sched_rt_runtime >= 0;
-}
-
-static void start_bandwidth_timer(struct hrtimer *period_timer, ktime_t period)
+void start_bandwidth_timer(struct hrtimer *period_timer, ktime_t period)
 {
 	unsigned long delta;
 	ktime_t soft, hard, now;
@@ -218,609 +104,12 @@ static void start_bandwidth_timer(struct hrtimer *period_timer, ktime_t period)
 	}
 }
 
-static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
-{
-	if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF)
-		return;
-
-	if (hrtimer_active(&rt_b->rt_period_timer))
-		return;
-
-	raw_spin_lock(&rt_b->rt_runtime_lock);
-	start_bandwidth_timer(&rt_b->rt_period_timer, rt_b->rt_period);
-	raw_spin_unlock(&rt_b->rt_runtime_lock);
-}
-
-#ifdef CONFIG_RT_GROUP_SCHED
-static void destroy_rt_bandwidth(struct rt_bandwidth *rt_b)
-{
-	hrtimer_cancel(&rt_b->rt_period_timer);
-}
-#endif
-
-/*
- * sched_domains_mutex serializes calls to init_sched_domains,
- * detach_destroy_domains and partition_sched_domains.
- */
-static DEFINE_MUTEX(sched_domains_mutex);
-
-#ifdef CONFIG_CGROUP_SCHED
-
-#include <linux/cgroup.h>
-
-struct cfs_rq;
-
-static LIST_HEAD(task_groups);
-
-struct cfs_bandwidth {
-#ifdef CONFIG_CFS_BANDWIDTH
-	raw_spinlock_t lock;
-	ktime_t period;
-	u64 quota, runtime;
-	s64 hierarchal_quota;
-	u64 runtime_expires;
-
-	int idle, timer_active;
-	struct hrtimer period_timer, slack_timer;
-	struct list_head throttled_cfs_rq;
-
-	/* statistics */
-	int nr_periods, nr_throttled;
-	u64 throttled_time;
-#endif
-};
-
-/* task group related information */
-struct task_group {
-	struct cgroup_subsys_state css;
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-	/* schedulable entities of this group on each cpu */
-	struct sched_entity **se;
-	/* runqueue "owned" by this group on each cpu */
-	struct cfs_rq **cfs_rq;
-	unsigned long shares;
-
-	atomic_t load_weight;
-#endif
-
-#ifdef CONFIG_RT_GROUP_SCHED
-	struct sched_rt_entity **rt_se;
-	struct rt_rq **rt_rq;
-
-	struct rt_bandwidth rt_bandwidth;
-#endif
-
-	struct rcu_head rcu;
-	struct list_head list;
-
-	struct task_group *parent;
-	struct list_head siblings;
-	struct list_head children;
-
-#ifdef CONFIG_SCHED_AUTOGROUP
-	struct autogroup *autogroup;
-#endif
-
-	struct cfs_bandwidth cfs_bandwidth;
-};
-
-/* task_group_lock serializes the addition/removal of task groups */
-static DEFINE_SPINLOCK(task_group_lock);
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-
-# define ROOT_TASK_GROUP_LOAD	NICE_0_LOAD
-
-/*
- * A weight of 0 or 1 can cause arithmetics problems.
- * A weight of a cfs_rq is the sum of weights of which entities
- * are queued on this cfs_rq, so a weight of a entity should not be
- * too large, so as the shares value of a task group.
- * (The default weight is 1024 - so there's no practical
- *  limitation from this.)
- */
-#define MIN_SHARES	(1UL <<  1)
-#define MAX_SHARES	(1UL << 18)
-
-static int root_task_group_load = ROOT_TASK_GROUP_LOAD;
-#endif
-
-/* Default task group.
- *	Every task in system belong to this group at bootup.
- */
-struct task_group root_task_group;
-
-#endif	/* CONFIG_CGROUP_SCHED */
-
-/* CFS-related fields in a runqueue */
-struct cfs_rq {
-	struct load_weight load;
-	unsigned long nr_running, h_nr_running;
-
-	u64 exec_clock;
-	u64 min_vruntime;
-#ifndef CONFIG_64BIT
-	u64 min_vruntime_copy;
-#endif
-
-	struct rb_root tasks_timeline;
-	struct rb_node *rb_leftmost;
-
-	struct list_head tasks;
-	struct list_head *balance_iterator;
-
-	/*
-	 * 'curr' points to currently running entity on this cfs_rq.
-	 * It is set to NULL otherwise (i.e when none are currently running).
-	 */
-	struct sched_entity *curr, *next, *last, *skip;
-
-#ifdef	CONFIG_SCHED_DEBUG
-	unsigned int nr_spread_over;
-#endif
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-	struct rq *rq;	/* cpu runqueue to which this cfs_rq is attached */
-
-	/*
-	 * leaf cfs_rqs are those that hold tasks (lowest schedulable entity in
-	 * a hierarchy). Non-leaf lrqs hold other higher schedulable entities
-	 * (like users, containers etc.)
-	 *
-	 * leaf_cfs_rq_list ties together list of leaf cfs_rq's in a cpu. This
-	 * list is used during load balance.
-	 */
-	int on_list;
-	struct list_head leaf_cfs_rq_list;
-	struct task_group *tg;	/* group that "owns" this runqueue */
-
-#ifdef CONFIG_SMP
-	/*
-	 * the part of load.weight contributed by tasks
-	 */
-	unsigned long task_weight;
-
-	/*
-	 *   h_load = weight * f(tg)
-	 *
-	 * Where f(tg) is the recursive weight fraction assigned to
-	 * this group.
-	 */
-	unsigned long h_load;
-
-	/*
-	 * Maintaining per-cpu shares distribution for group scheduling
-	 *
-	 * load_stamp is the last time we updated the load average
-	 * load_last is the last time we updated the load average and saw load
-	 * load_unacc_exec_time is currently unaccounted execution time
-	 */
-	u64 load_avg;
-	u64 load_period;
-	u64 load_stamp, load_last, load_unacc_exec_time;
-
-	unsigned long load_contribution;
-#endif
-#ifdef CONFIG_CFS_BANDWIDTH
-	int runtime_enabled;
-	u64 runtime_expires;
-	s64 runtime_remaining;
-
-	u64 throttled_timestamp;
-	int throttled, throttle_count;
-	struct list_head throttled_list;
-#endif
-#endif
-};
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-#ifdef CONFIG_CFS_BANDWIDTH
-static inline struct cfs_bandwidth *tg_cfs_bandwidth(struct task_group *tg)
-{
-	return &tg->cfs_bandwidth;
-}
-
-static inline u64 default_cfs_period(void);
-static int do_sched_cfs_period_timer(struct cfs_bandwidth *cfs_b, int overrun);
-static void do_sched_cfs_slack_timer(struct cfs_bandwidth *cfs_b);
-
-static enum hrtimer_restart sched_cfs_slack_timer(struct hrtimer *timer)
-{
-	struct cfs_bandwidth *cfs_b =
-		container_of(timer, struct cfs_bandwidth, slack_timer);
-	do_sched_cfs_slack_timer(cfs_b);
-
-	return HRTIMER_NORESTART;
-}
-
-static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
-{
-	struct cfs_bandwidth *cfs_b =
-		container_of(timer, struct cfs_bandwidth, period_timer);
-	ktime_t now;
-	int overrun;
-	int idle = 0;
-
-	for (;;) {
-		now = hrtimer_cb_get_time(timer);
-		overrun = hrtimer_forward(timer, now, cfs_b->period);
-
-		if (!overrun)
-			break;
-
-		idle = do_sched_cfs_period_timer(cfs_b, overrun);
-	}
-
-	return idle ? HRTIMER_NORESTART : HRTIMER_RESTART;
-}
-
-static void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b)
-{
-	raw_spin_lock_init(&cfs_b->lock);
-	cfs_b->runtime = 0;
-	cfs_b->quota = RUNTIME_INF;
-	cfs_b->period = ns_to_ktime(default_cfs_period());
-
-	INIT_LIST_HEAD(&cfs_b->throttled_cfs_rq);
-	hrtimer_init(&cfs_b->period_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	cfs_b->period_timer.function = sched_cfs_period_timer;
-	hrtimer_init(&cfs_b->slack_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	cfs_b->slack_timer.function = sched_cfs_slack_timer;
-}
-
-static void init_cfs_rq_runtime(struct cfs_rq *cfs_rq)
-{
-	cfs_rq->runtime_enabled = 0;
-	INIT_LIST_HEAD(&cfs_rq->throttled_list);
-}
-
-/* requires cfs_b->lock, may release to reprogram timer */
-static void __start_cfs_bandwidth(struct cfs_bandwidth *cfs_b)
-{
-	/*
-	 * The timer may be active because we're trying to set a new bandwidth
-	 * period or because we're racing with the tear-down path
-	 * (timer_active==0 becomes visible before the hrtimer call-back
-	 * terminates).  In either case we ensure that it's re-programmed
-	 */
-	while (unlikely(hrtimer_active(&cfs_b->period_timer))) {
-		raw_spin_unlock(&cfs_b->lock);
-		/* ensure cfs_b->lock is available while we wait */
-		hrtimer_cancel(&cfs_b->period_timer);
-
-		raw_spin_lock(&cfs_b->lock);
-		/* if someone else restarted the timer then we're done */
-		if (cfs_b->timer_active)
-			return;
-	}
-
-	cfs_b->timer_active = 1;
-	start_bandwidth_timer(&cfs_b->period_timer, cfs_b->period);
-}
-
-static void destroy_cfs_bandwidth(struct cfs_bandwidth *cfs_b)
-{
-	hrtimer_cancel(&cfs_b->period_timer);
-	hrtimer_cancel(&cfs_b->slack_timer);
-}
-
-#ifdef HAVE_JUMP_LABEL
-static struct jump_label_key __cfs_bandwidth_used;
-
-static inline bool cfs_bandwidth_used(void)
-{
-	return static_branch(&__cfs_bandwidth_used);
-}
-
-static void account_cfs_bandwidth_used(int enabled, int was_enabled)
-{
-	/* only need to count groups transitioning between enabled/!enabled */
-	if (enabled && !was_enabled)
-		jump_label_inc(&__cfs_bandwidth_used);
-	else if (!enabled && was_enabled)
-		jump_label_dec(&__cfs_bandwidth_used);
-}
-#else /* !HAVE_JUMP_LABEL */
-/* static_branch doesn't help unless supported */
-static int cfs_bandwidth_used(void)
-{
-	return 1;
-}
-static void account_cfs_bandwidth_used(int enabled, int was_enabled) {}
-#endif /* HAVE_JUMP_LABEL */
-#else /* !CONFIG_CFS_BANDWIDTH */
-static void init_cfs_rq_runtime(struct cfs_rq *cfs_rq) {}
-static void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {}
-static void destroy_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {}
-
-static inline struct cfs_bandwidth *tg_cfs_bandwidth(struct task_group *tg)
-{
-	return NULL;
-}
-#endif /* CONFIG_CFS_BANDWIDTH */
-#endif /* CONFIG_FAIR_GROUP_SCHED */
-
-/* Real-Time classes' related field in a runqueue: */
-struct rt_rq {
-	struct rt_prio_array active;
-	unsigned long rt_nr_running;
-#if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
-	struct {
-		int curr; /* highest queued rt task prio */
-#ifdef CONFIG_SMP
-		int next; /* next highest */
-#endif
-	} highest_prio;
-#endif
-#ifdef CONFIG_SMP
-	unsigned long rt_nr_migratory;
-	unsigned long rt_nr_total;
-	int overloaded;
-	struct plist_head pushable_tasks;
-#endif
-	int rt_throttled;
-	u64 rt_time;
-	u64 rt_runtime;
-	/* Nests inside the rq lock: */
-	raw_spinlock_t rt_runtime_lock;
-
-#ifdef CONFIG_RT_GROUP_SCHED
-	unsigned long rt_nr_boosted;
-
-	struct rq *rq;
-	struct list_head leaf_rt_rq_list;
-	struct task_group *tg;
-#endif
-};
-
-#ifdef CONFIG_SMP
-
-/*
- * We add the notion of a root-domain which will be used to define per-domain
- * variables. Each exclusive cpuset essentially defines an island domain by
- * fully partitioning the member cpus from any other cpuset. Whenever a new
- * exclusive cpuset is created, we also create and attach a new root-domain
- * object.
- *
- */
-struct root_domain {
-	atomic_t refcount;
-	atomic_t rto_count;
-	struct rcu_head rcu;
-	cpumask_var_t span;
-	cpumask_var_t online;
-
-	/*
-	 * The "RT overload" flag: it gets set if a CPU has more than
-	 * one runnable RT task.
-	 */
-	cpumask_var_t rto_mask;
-	struct cpupri cpupri;
-};
-
-/*
- * By default the system creates a single root-domain with all cpus as
- * members (mimicking the global state we have today).
- */
-static struct root_domain def_root_domain;
-
-#endif /* CONFIG_SMP */
-
-/*
- * This is the main, per-CPU runqueue data structure.
- *
- * Locking rule: those places that want to lock multiple runqueues
- * (such as the load balancing or the thread migration code), lock
- * acquire operations must be ordered by ascending &runqueue.
- */
-struct rq {
-	/* runqueue lock: */
-	raw_spinlock_t lock;
-
-	/*
-	 * nr_running and cpu_load should be in the same cacheline because
-	 * remote CPUs use both these fields when doing load calculation.
-	 */
-	unsigned long nr_running;
-	#define CPU_LOAD_IDX_MAX 5
-	unsigned long cpu_load[CPU_LOAD_IDX_MAX];
-	unsigned long last_load_update_tick;
-#ifdef CONFIG_NO_HZ
-	u64 nohz_stamp;
-	unsigned char nohz_balance_kick;
-#endif
-	int skip_clock_update;
-
-	/* capture load from *all* tasks on this cpu: */
-	struct load_weight load;
-	unsigned long nr_load_updates;
-	u64 nr_switches;
-
-	struct cfs_rq cfs;
-	struct rt_rq rt;
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-	/* list of leaf cfs_rq on this cpu: */
-	struct list_head leaf_cfs_rq_list;
-#endif
-#ifdef CONFIG_RT_GROUP_SCHED
-	struct list_head leaf_rt_rq_list;
-#endif
-
-	/*
-	 * This is part of a global counter where only the total sum
-	 * over all CPUs matters. A task can increase this counter on
-	 * one CPU and if it got migrated afterwards it may decrease
-	 * it on another CPU. Always updated under the runqueue lock:
-	 */
-	unsigned long nr_uninterruptible;
-
-	struct task_struct *curr, *idle, *stop;
-	unsigned long next_balance;
-	struct mm_struct *prev_mm;
-
-	u64 clock;
-	u64 clock_task;
-
-	atomic_t nr_iowait;
-
-#ifdef CONFIG_SMP
-	struct root_domain *rd;
-	struct sched_domain *sd;
-
-	unsigned long cpu_power;
-
-	unsigned char idle_balance;
-	/* For active balancing */
-	int post_schedule;
-	int active_balance;
-	int push_cpu;
-	struct cpu_stop_work active_balance_work;
-	/* cpu of this runqueue: */
-	int cpu;
-	int online;
-
-	u64 rt_avg;
-	u64 age_stamp;
-	u64 idle_stamp;
-	u64 avg_idle;
-#endif
-
-#ifdef CONFIG_IRQ_TIME_ACCOUNTING
-	u64 prev_irq_time;
-#endif
-#ifdef CONFIG_PARAVIRT
-	u64 prev_steal_time;
-#endif
-#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
-	u64 prev_steal_time_rq;
-#endif
-
-	/* calc_load related fields */
-	unsigned long calc_load_update;
-	long calc_load_active;
-
-#ifdef CONFIG_SCHED_HRTICK
-#ifdef CONFIG_SMP
-	int hrtick_csd_pending;
-	struct call_single_data hrtick_csd;
-#endif
-	struct hrtimer hrtick_timer;
-#endif
-
-#ifdef CONFIG_SCHEDSTATS
-	/* latency stats */
-	struct sched_info rq_sched_info;
-	unsigned long long rq_cpu_time;
-	/* could above be rq->cfs_rq.exec_clock + rq->rt_rq.rt_runtime ? */
-
-	/* sys_sched_yield() stats */
-	unsigned int yld_count;
-
-	/* schedule() stats */
-	unsigned int sched_switch;
-	unsigned int sched_count;
-	unsigned int sched_goidle;
-
-	/* try_to_wake_up() stats */
-	unsigned int ttwu_count;
-	unsigned int ttwu_local;
-#endif
-
-#ifdef CONFIG_SMP
-	struct llist_head wake_list;
-#endif
-};
-
-static DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
-
-
-static void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags);
-
-static inline int cpu_of(struct rq *rq)
-{
-#ifdef CONFIG_SMP
-	return rq->cpu;
-#else
-	return 0;
-#endif
-}
-
-#define rcu_dereference_check_sched_domain(p) \
-	rcu_dereference_check((p), \
-			      lockdep_is_held(&sched_domains_mutex))
-
-/*
- * The domain tree (rq->sd) is protected by RCU's quiescent state transition.
- * See detach_destroy_domains: synchronize_sched for details.
- *
- * The domain tree of any CPU may only be accessed from within
- * preempt-disabled sections.
- */
-#define for_each_domain(cpu, __sd) \
-	for (__sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd); __sd; __sd = __sd->parent)
-
-#define cpu_rq(cpu)		(&per_cpu(runqueues, (cpu)))
-#define this_rq()		(&__get_cpu_var(runqueues))
-#define task_rq(p)		cpu_rq(task_cpu(p))
-#define cpu_curr(cpu)		(cpu_rq(cpu)->curr)
-#define raw_rq()		(&__raw_get_cpu_var(runqueues))
-
-#ifdef CONFIG_CGROUP_SCHED
-
-/*
- * Return the group to which this tasks belongs.
- *
- * We use task_subsys_state_check() and extend the RCU verification with
- * pi->lock and rq->lock because cpu_cgroup_attach() holds those locks for each
- * task it moves into the cgroup. Therefore by holding either of those locks,
- * we pin the task to the current cgroup.
- */
-static inline struct task_group *task_group(struct task_struct *p)
-{
-	struct task_group *tg;
-	struct cgroup_subsys_state *css;
-
-	css = task_subsys_state_check(p, cpu_cgroup_subsys_id,
-			lockdep_is_held(&p->pi_lock) ||
-			lockdep_is_held(&task_rq(p)->lock));
-	tg = container_of(css, struct task_group, css);
-
-	return autogroup_task_group(p, tg);
-}
-
-/* Change a task's cfs_rq and parent entity if it moves across CPUs/groups */
-static inline void set_task_rq(struct task_struct *p, unsigned int cpu)
-{
-#if defined(CONFIG_FAIR_GROUP_SCHED) || defined(CONFIG_RT_GROUP_SCHED)
-	struct task_group *tg = task_group(p);
-#endif
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-	p->se.cfs_rq = tg->cfs_rq[cpu];
-	p->se.parent = tg->se[cpu];
-#endif
-
-#ifdef CONFIG_RT_GROUP_SCHED
-	p->rt.rt_rq  = tg->rt_rq[cpu];
-	p->rt.parent = tg->rt_se[cpu];
-#endif
-}
-
-#else /* CONFIG_CGROUP_SCHED */
-
-static inline void set_task_rq(struct task_struct *p, unsigned int cpu) { }
-static inline struct task_group *task_group(struct task_struct *p)
-{
-	return NULL;
-}
-
-#endif /* CONFIG_CGROUP_SCHED */
+DEFINE_MUTEX(sched_domains_mutex);
+DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
 
 static void update_rq_clock_task(struct rq *rq, s64 delta);
 
-static void update_rq_clock(struct rq *rq)
+void update_rq_clock(struct rq *rq)
 {
 	s64 delta;
 
@@ -833,40 +122,10 @@ static void update_rq_clock(struct rq *rq)
 }
 
 /*
- * Tunables that become constants when CONFIG_SCHED_DEBUG is off:
- */
-#ifdef CONFIG_SCHED_DEBUG
-# define const_debug __read_mostly
-#else
-# define const_debug static const
-#endif
-
-/**
- * runqueue_is_locked - Returns true if the current cpu runqueue is locked
- * @cpu: the processor in question.
- *
- * This interface allows printk to be called with the runqueue lock
- * held and know whether or not it is OK to wake up the klogd.
- */
-int runqueue_is_locked(int cpu)
-{
-	return raw_spin_is_locked(&cpu_rq(cpu)->lock);
-}
-
-/*
  * Debugging: various feature bits
  */
 
 #define SCHED_FEAT(name, enabled)	\
-	__SCHED_FEAT_##name ,
-
-enum {
-#include "sched_features.h"
-};
-
-#undef SCHED_FEAT
-
-#define SCHED_FEAT(name, enabled)	\
 	(1UL << __SCHED_FEAT_##name) * enabled |
 
 const_debug unsigned int sysctl_sched_features =
@@ -965,8 +224,6 @@ late_initcall(sched_init_debug);
 
 #endif
 
-#define sched_feat(x) (sysctl_sched_features & (1UL << __SCHED_FEAT_##x))
-
 /*
  * Number of tasks to iterate in a single balance run.
  * Limited because this is done with IRQs disabled.
@@ -987,7 +244,7 @@ const_debug unsigned int sysctl_sched_time_avg = MSEC_PER_SEC;
  */
 unsigned int sysctl_sched_rt_period = 1000000;
 
-static __read_mostly int scheduler_running;
+__read_mostly int scheduler_running;
 
 /*
  * part of the period that we allow rt tasks to run in us.
@@ -995,112 +252,7 @@ static __read_mostly int scheduler_running;
  */
 int sysctl_sched_rt_runtime = 950000;
 
-static inline u64 global_rt_period(void)
-{
-	return (u64)sysctl_sched_rt_period * NSEC_PER_USEC;
-}
 
-static inline u64 global_rt_runtime(void)
-{
-	if (sysctl_sched_rt_runtime < 0)
-		return RUNTIME_INF;
-
-	return (u64)sysctl_sched_rt_runtime * NSEC_PER_USEC;
-}
-
-#ifndef prepare_arch_switch
-# define prepare_arch_switch(next)	do { } while (0)
-#endif
-#ifndef finish_arch_switch
-# define finish_arch_switch(prev)	do { } while (0)
-#endif
-
-static inline int task_current(struct rq *rq, struct task_struct *p)
-{
-	return rq->curr == p;
-}
-
-static inline int task_running(struct rq *rq, struct task_struct *p)
-{
-#ifdef CONFIG_SMP
-	return p->on_cpu;
-#else
-	return task_current(rq, p);
-#endif
-}
-
-#ifndef __ARCH_WANT_UNLOCKED_CTXSW
-static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next)
-{
-#ifdef CONFIG_SMP
-	/*
-	 * We can optimise this out completely for !SMP, because the
-	 * SMP rebalancing from interrupt is the only thing that cares
-	 * here.
-	 */
-	next->on_cpu = 1;
-#endif
-}
-
-static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev)
-{
-#ifdef CONFIG_SMP
-	/*
-	 * After ->on_cpu is cleared, the task can be moved to a different CPU.
-	 * We must ensure this doesn't happen until the switch is completely
-	 * finished.
-	 */
-	smp_wmb();
-	prev->on_cpu = 0;
-#endif
-#ifdef CONFIG_DEBUG_SPINLOCK
-	/* this is a valid case when another task releases the spinlock */
-	rq->lock.owner = current;
-#endif
-	/*
-	 * If we are tracking spinlock dependencies then we have to
-	 * fix up the runqueue lock - which gets 'carried over' from
-	 * prev into current:
-	 */
-	spin_acquire(&rq->lock.dep_map, 0, 0, _THIS_IP_);
-
-	raw_spin_unlock_irq(&rq->lock);
-}
-
-#else /* __ARCH_WANT_UNLOCKED_CTXSW */
-static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next)
-{
-#ifdef CONFIG_SMP
-	/*
-	 * We can optimise this out completely for !SMP, because the
-	 * SMP rebalancing from interrupt is the only thing that cares
-	 * here.
-	 */
-	next->on_cpu = 1;
-#endif
-#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
-	raw_spin_unlock_irq(&rq->lock);
-#else
-	raw_spin_unlock(&rq->lock);
-#endif
-}
-
-static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev)
-{
-#ifdef CONFIG_SMP
-	/*
-	 * After ->on_cpu is cleared, the task can be moved to a different CPU.
-	 * We must ensure this doesn't happen until the switch is completely
-	 * finished.
-	 */
-	smp_wmb();
-	prev->on_cpu = 0;
-#endif
-#ifndef __ARCH_WANT_INTERRUPTS_ON_CTXSW
-	local_irq_enable();
-#endif
-}
-#endif /* __ARCH_WANT_UNLOCKED_CTXSW */
 
 /*
  * __task_rq_lock - lock the rq @p resides on.
@@ -1183,20 +335,6 @@ static struct rq *this_rq_lock(void)
  * rq->lock.
  */
 
-/*
- * Use hrtick when:
- *  - enabled by features
- *  - hrtimer is actually high res
- */
-static inline int hrtick_enabled(struct rq *rq)
-{
-	if (!sched_feat(HRTICK))
-		return 0;
-	if (!cpu_active(cpu_of(rq)))
-		return 0;
-	return hrtimer_is_hres_active(&rq->hrtick_timer);
-}
-
 static void hrtick_clear(struct rq *rq)
 {
 	if (hrtimer_active(&rq->hrtick_timer))
@@ -1240,7 +378,7 @@ static void __hrtick_start(void *arg)
  *
  * called with rq->lock held and irqs disabled
  */
-static void hrtick_start(struct rq *rq, u64 delay)
+void hrtick_start(struct rq *rq, u64 delay)
 {
 	struct hrtimer *timer = &rq->hrtick_timer;
 	ktime_t time = ktime_add_ns(timer->base->get_time(), delay);
@@ -1284,7 +422,7 @@ static __init void init_hrtick(void)
  *
  * called with rq->lock held and irqs disabled
  */
-static void hrtick_start(struct rq *rq, u64 delay)
+void hrtick_start(struct rq *rq, u64 delay)
 {
 	__hrtimer_start_range_ns(&rq->hrtick_timer, ns_to_ktime(delay), 0,
 			HRTIMER_MODE_REL_PINNED, 0);
@@ -1335,7 +473,7 @@ static inline void init_hrtick(void)
 #define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
 #endif
 
-static void resched_task(struct task_struct *p)
+void resched_task(struct task_struct *p)
 {
 	int cpu;
 
@@ -1356,7 +494,7 @@ static void resched_task(struct task_struct *p)
 		smp_send_reschedule(cpu);
 }
 
-static void resched_cpu(int cpu)
+void resched_cpu(int cpu)
 {
 	struct rq *rq = cpu_rq(cpu);
 	unsigned long flags;
@@ -1449,12 +587,7 @@ static inline bool got_nohz_idle_kick(void)
 
 #endif /* CONFIG_NO_HZ */
 
-static u64 sched_avg_period(void)
-{
-	return (u64)sysctl_sched_time_avg * NSEC_PER_MSEC / 2;
-}
-
-static void sched_avg_update(struct rq *rq)
+void sched_avg_update(struct rq *rq)
 {
 	s64 period = sched_avg_period();
 
@@ -1470,193 +603,23 @@ static void sched_avg_update(struct rq *rq)
 	}
 }
 
-static void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
-{
-	rq->rt_avg += rt_delta;
-	sched_avg_update(rq);
-}
-
 #else /* !CONFIG_SMP */
-static void resched_task(struct task_struct *p)
+void resched_task(struct task_struct *p)
 {
 	assert_raw_spin_locked(&task_rq(p)->lock);
 	set_tsk_need_resched(p);
 }
-
-static void sched_rt_avg_update(struct rq *rq, u64 rt_delta)
-{
-}
-
-static void sched_avg_update(struct rq *rq)
-{
-}
 #endif /* CONFIG_SMP */
 
-#if BITS_PER_LONG == 32
-# define WMULT_CONST	(~0UL)
-#else
-# define WMULT_CONST	(1UL << 32)
-#endif
-
-#define WMULT_SHIFT	32
-
-/*
- * Shift right and round:
- */
-#define SRR(x, y) (((x) + (1UL << ((y) - 1))) >> (y))
-
-/*
- * delta *= weight / lw
- */
-static unsigned long
-calc_delta_mine(unsigned long delta_exec, unsigned long weight,
-		struct load_weight *lw)
-{
-	u64 tmp;
-
-	/*
-	 * weight can be less than 2^SCHED_LOAD_RESOLUTION for task group sched
-	 * entities since MIN_SHARES = 2. Treat weight as 1 if less than
-	 * 2^SCHED_LOAD_RESOLUTION.
-	 */
-	if (likely(weight > (1UL << SCHED_LOAD_RESOLUTION)))
-		tmp = (u64)delta_exec * scale_load_down(weight);
-	else
-		tmp = (u64)delta_exec;
-
-	if (!lw->inv_weight) {
-		unsigned long w = scale_load_down(lw->weight);
-
-		if (BITS_PER_LONG > 32 && unlikely(w >= WMULT_CONST))
-			lw->inv_weight = 1;
-		else if (unlikely(!w))
-			lw->inv_weight = WMULT_CONST;
-		else
-			lw->inv_weight = WMULT_CONST / w;
-	}
-
-	/*
-	 * Check whether we'd overflow the 64-bit multiplication:
-	 */
-	if (unlikely(tmp > WMULT_CONST))
-		tmp = SRR(SRR(tmp, WMULT_SHIFT/2) * lw->inv_weight,
-			WMULT_SHIFT/2);
-	else
-		tmp = SRR(tmp * lw->inv_weight, WMULT_SHIFT);
-
-	return (unsigned long)min(tmp, (u64)(unsigned long)LONG_MAX);
-}
-
-static inline void update_load_add(struct load_weight *lw, unsigned long inc)
-{
-	lw->weight += inc;
-	lw->inv_weight = 0;
-}
-
-static inline void update_load_sub(struct load_weight *lw, unsigned long dec)
-{
-	lw->weight -= dec;
-	lw->inv_weight = 0;
-}
-
-static inline void update_load_set(struct load_weight *lw, unsigned long w)
-{
-	lw->weight = w;
-	lw->inv_weight = 0;
-}
-
-/*
- * To aid in avoiding the subversion of "niceness" due to uneven distribution
- * of tasks with abnormal "nice" values across CPUs the contribution that
- * each task makes to its run queue's load is weighted according to its
- * scheduling class and "nice" value. For SCHED_NORMAL tasks this is just a
- * scaled version of the new time slice allocation that they receive on time
- * slice expiry etc.
- */
-
-#define WEIGHT_IDLEPRIO                3
-#define WMULT_IDLEPRIO         1431655765
-
-/*
- * Nice levels are multiplicative, with a gentle 10% change for every
- * nice level changed. I.e. when a CPU-bound task goes from nice 0 to
- * nice 1, it will get ~10% less CPU time than another CPU-bound task
- * that remained on nice 0.
- *
- * The "10% effect" is relative and cumulative: from _any_ nice level,
- * if you go up 1 level, it's -10% CPU usage, if you go down 1 level
- * it's +10% CPU usage. (to achieve that we use a multiplier of 1.25.
- * If a task goes up by ~10% and another task goes down by ~10% then
- * the relative distance between them is ~25%.)
- */
-static const int prio_to_weight[40] = {
- /* -20 */     88761,     71755,     56483,     46273,     36291,
- /* -15 */     29154,     23254,     18705,     14949,     11916,
- /* -10 */      9548,      7620,      6100,      4904,      3906,
- /*  -5 */      3121,      2501,      1991,      1586,      1277,
- /*   0 */      1024,       820,       655,       526,       423,
- /*   5 */       335,       272,       215,       172,       137,
- /*  10 */       110,        87,        70,        56,        45,
- /*  15 */        36,        29,        23,        18,        15,
-};
-
-/*
- * Inverse (2^32/x) values of the prio_to_weight[] array, precalculated.
- *
- * In cases where the weight does not change often, we can use the
- * precalculated inverse to speed up arithmetics by turning divisions
- * into multiplications:
- */
-static const u32 prio_to_wmult[40] = {
- /* -20 */     48388,     59856,     76040,     92818,    118348,
- /* -15 */    147320,    184698,    229616,    287308,    360437,
- /* -10 */    449829,    563644,    704093,    875809,   1099582,
- /*  -5 */   1376151,   1717300,   2157191,   2708050,   3363326,
- /*   0 */   4194304,   5237765,   6557202,   8165337,  10153587,
- /*   5 */  12820798,  15790321,  19976592,  24970740,  31350126,
- /*  10 */  39045157,  49367440,  61356676,  76695844,  95443717,
- /*  15 */ 119304647, 148102320, 186737708, 238609294, 286331153,
-};
-
-/* Time spent by the tasks of the cpu accounting group executing in ... */
-enum cpuacct_stat_index {
-	CPUACCT_STAT_USER,	/* ... user mode */
-	CPUACCT_STAT_SYSTEM,	/* ... kernel mode */
-
-	CPUACCT_STAT_NSTATS,
-};
-
-#ifdef CONFIG_CGROUP_CPUACCT
-static void cpuacct_charge(struct task_struct *tsk, u64 cputime);
-static void cpuacct_update_stats(struct task_struct *tsk,
-		enum cpuacct_stat_index idx, cputime_t val);
-#else
-static inline void cpuacct_charge(struct task_struct *tsk, u64 cputime) {}
-static inline void cpuacct_update_stats(struct task_struct *tsk,
-		enum cpuacct_stat_index idx, cputime_t val) {}
-#endif
-
-static inline void inc_cpu_load(struct rq *rq, unsigned long load)
-{
-	update_load_add(&rq->load, load);
-}
-
-static inline void dec_cpu_load(struct rq *rq, unsigned long load)
-{
-	update_load_sub(&rq->load, load);
-}
-
 #if defined(CONFIG_RT_GROUP_SCHED) || (defined(CONFIG_FAIR_GROUP_SCHED) && \
 			(defined(CONFIG_SMP) || defined(CONFIG_CFS_BANDWIDTH)))
-typedef int (*tg_visitor)(struct task_group *, void *);
-
 /*
  * Iterate task_group tree rooted at *from, calling @down when first entering a
  * node and @up when leaving it for the final time.
  *
  * Caller must hold rcu_lock or sufficient equivalent.
  */
-static int walk_tg_tree_from(struct task_group *from,
+int walk_tg_tree_from(struct task_group *from,
 			     tg_visitor down, tg_visitor up, void *data)
 {
 	struct task_group *parent, *child;
@@ -1687,270 +650,13 @@ out:
 	return ret;
 }
 
-/*
- * Iterate the full tree, calling @down when first entering a node and @up when
- * leaving it for the final time.
- *
- * Caller must hold rcu_lock or sufficient equivalent.
- */
-
-static inline int walk_tg_tree(tg_visitor down, tg_visitor up, void *data)
-{
-	return walk_tg_tree_from(&root_task_group, down, up, data);
-}
-
-static int tg_nop(struct task_group *tg, void *data)
+int tg_nop(struct task_group *tg, void *data)
 {
 	return 0;
 }
 #endif
 
-#ifdef CONFIG_SMP
-/* Used instead of source_load when we know the type == 0 */
-static unsigned long weighted_cpuload(const int cpu)
-{
-	return cpu_rq(cpu)->load.weight;
-}
-
-/*
- * Return a low guess at the load of a migration-source cpu weighted
- * according to the scheduling class and "nice" value.
- *
- * We want to under-estimate the load of migration sources, to
- * balance conservatively.
- */
-static unsigned long source_load(int cpu, int type)
-{
-	struct rq *rq = cpu_rq(cpu);
-	unsigned long total = weighted_cpuload(cpu);
-
-	if (type == 0 || !sched_feat(LB_BIAS))
-		return total;
-
-	return min(rq->cpu_load[type-1], total);
-}
-
-/*
- * Return a high guess at the load of a migration-target cpu weighted
- * according to the scheduling class and "nice" value.
- */
-static unsigned long target_load(int cpu, int type)
-{
-	struct rq *rq = cpu_rq(cpu);
-	unsigned long total = weighted_cpuload(cpu);
-
-	if (type == 0 || !sched_feat(LB_BIAS))
-		return total;
-
-	return max(rq->cpu_load[type-1], total);
-}
-
-static unsigned long power_of(int cpu)
-{
-	return cpu_rq(cpu)->cpu_power;
-}
-
-static int task_hot(struct task_struct *p, u64 now, struct sched_domain *sd);
-
-static unsigned long cpu_avg_load_per_task(int cpu)
-{
-	struct rq *rq = cpu_rq(cpu);
-	unsigned long nr_running = ACCESS_ONCE(rq->nr_running);
-
-	if (nr_running)
-		return rq->load.weight / nr_running;
-
-	return 0;
-}
-
-#ifdef CONFIG_PREEMPT
-
-static void double_rq_lock(struct rq *rq1, struct rq *rq2);
-
-/*
- * fair double_lock_balance: Safely acquires both rq->locks in a fair
- * way at the expense of forcing extra atomic operations in all
- * invocations.  This assures that the double_lock is acquired using the
- * same underlying policy as the spinlock_t on this architecture, which
- * reduces latency compared to the unfair variant below.  However, it
- * also adds more overhead and therefore may reduce throughput.
- */
-static inline int _double_lock_balance(struct rq *this_rq, struct rq *busiest)
-	__releases(this_rq->lock)
-	__acquires(busiest->lock)
-	__acquires(this_rq->lock)
-{
-	raw_spin_unlock(&this_rq->lock);
-	double_rq_lock(this_rq, busiest);
-
-	return 1;
-}
-
-#else
-/*
- * Unfair double_lock_balance: Optimizes throughput at the expense of
- * latency by eliminating extra atomic operations when the locks are
- * already in proper order on entry.  This favors lower cpu-ids and will
- * grant the double lock to lower cpus over higher ids under contention,
- * regardless of entry order into the function.
- */
-static int _double_lock_balance(struct rq *this_rq, struct rq *busiest)
-	__releases(this_rq->lock)
-	__acquires(busiest->lock)
-	__acquires(this_rq->lock)
-{
-	int ret = 0;
-
-	if (unlikely(!raw_spin_trylock(&busiest->lock))) {
-		if (busiest < this_rq) {
-			raw_spin_unlock(&this_rq->lock);
-			raw_spin_lock(&busiest->lock);
-			raw_spin_lock_nested(&this_rq->lock,
-					      SINGLE_DEPTH_NESTING);
-			ret = 1;
-		} else
-			raw_spin_lock_nested(&busiest->lock,
-					      SINGLE_DEPTH_NESTING);
-	}
-	return ret;
-}
-
-#endif /* CONFIG_PREEMPT */
-
-/*
- * double_lock_balance - lock the busiest runqueue, this_rq is locked already.
- */
-static int double_lock_balance(struct rq *this_rq, struct rq *busiest)
-{
-	if (unlikely(!irqs_disabled())) {
-		/* printk() doesn't work good under rq->lock */
-		raw_spin_unlock(&this_rq->lock);
-		BUG_ON(1);
-	}
-
-	return _double_lock_balance(this_rq, busiest);
-}
-
-static inline void double_unlock_balance(struct rq *this_rq, struct rq *busiest)
-	__releases(busiest->lock)
-{
-	raw_spin_unlock(&busiest->lock);
-	lock_set_subclass(&this_rq->lock.dep_map, 0, _RET_IP_);
-}
-
-/*
- * double_rq_lock - safely lock two runqueues
- *
- * Note this does not disable interrupts like task_rq_lock,
- * you need to do so manually before calling.
- */
-static void double_rq_lock(struct rq *rq1, struct rq *rq2)
-	__acquires(rq1->lock)
-	__acquires(rq2->lock)
-{
-	BUG_ON(!irqs_disabled());
-	if (rq1 == rq2) {
-		raw_spin_lock(&rq1->lock);
-		__acquire(rq2->lock);	/* Fake it out ;) */
-	} else {
-		if (rq1 < rq2) {
-			raw_spin_lock(&rq1->lock);
-			raw_spin_lock_nested(&rq2->lock, SINGLE_DEPTH_NESTING);
-		} else {
-			raw_spin_lock(&rq2->lock);
-			raw_spin_lock_nested(&rq1->lock, SINGLE_DEPTH_NESTING);
-		}
-	}
-}
-
-/*
- * double_rq_unlock - safely unlock two runqueues
- *
- * Note this does not restore interrupts like task_rq_unlock,
- * you need to do so manually after calling.
- */
-static void double_rq_unlock(struct rq *rq1, struct rq *rq2)
-	__releases(rq1->lock)
-	__releases(rq2->lock)
-{
-	raw_spin_unlock(&rq1->lock);
-	if (rq1 != rq2)
-		raw_spin_unlock(&rq2->lock);
-	else
-		__release(rq2->lock);
-}
-
-#else /* CONFIG_SMP */
-
-/*
- * double_rq_lock - safely lock two runqueues
- *
- * Note this does not disable interrupts like task_rq_lock,
- * you need to do so manually before calling.
- */
-static void double_rq_lock(struct rq *rq1, struct rq *rq2)
-	__acquires(rq1->lock)
-	__acquires(rq2->lock)
-{
-	BUG_ON(!irqs_disabled());
-	BUG_ON(rq1 != rq2);
-	raw_spin_lock(&rq1->lock);
-	__acquire(rq2->lock);	/* Fake it out ;) */
-}
-
-/*
- * double_rq_unlock - safely unlock two runqueues
- *
- * Note this does not restore interrupts like task_rq_unlock,
- * you need to do so manually after calling.
- */
-static void double_rq_unlock(struct rq *rq1, struct rq *rq2)
-	__releases(rq1->lock)
-	__releases(rq2->lock)
-{
-	BUG_ON(rq1 != rq2);
-	raw_spin_unlock(&rq1->lock);
-	__release(rq2->lock);
-}
-
-#endif
-
-static void calc_load_account_idle(struct rq *this_rq);
-static void update_sysctl(void);
-static int get_update_sysctl_factor(void);
-static void update_cpu_load(struct rq *this_rq);
-
-static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu)
-{
-	set_task_rq(p, cpu);
-#ifdef CONFIG_SMP
-	/*
-	 * After ->cpu is set up to a new value, task_rq_lock(p, ...) can be
-	 * successfully executed on another CPU. We must ensure that updates of
-	 * per-task data have been completed by this moment.
-	 */
-	smp_wmb();
-	task_thread_info(p)->cpu = cpu;
-#endif
-}
-
-static const struct sched_class rt_sched_class;
-
-#define sched_class_highest (&stop_sched_class)
-#define for_each_class(class) \
-   for (class = sched_class_highest; class; class = class->next)
-
-#include "sched_stats.h"
-
-static void inc_nr_running(struct rq *rq)
-{
-	rq->nr_running++;
-}
-
-static void dec_nr_running(struct rq *rq)
-{
-	rq->nr_running--;
-}
+void update_cpu_load(struct rq *this_rq);
 
 static void set_load_weight(struct task_struct *p)
 {
@@ -1987,7 +693,7 @@ static void dequeue_task(struct rq *rq, struct task_struct *p, int flags)
 /*
  * activate_task - move a task to the runqueue.
  */
-static void activate_task(struct rq *rq, struct task_struct *p, int flags)
+void activate_task(struct rq *rq, struct task_struct *p, int flags)
 {
 	if (task_contributes_to_load(p))
 		rq->nr_uninterruptible--;
@@ -1998,7 +704,7 @@ static void activate_task(struct rq *rq, struct task_struct *p, int flags)
 /*
  * deactivate_task - remove a task from the runqueue.
  */
-static void deactivate_task(struct rq *rq, struct task_struct *p, int flags)
+void deactivate_task(struct rq *rq, struct task_struct *p, int flags)
 {
 	if (task_contributes_to_load(p))
 		rq->nr_uninterruptible++;
@@ -2223,15 +929,6 @@ static int irqtime_account_si_update(void)
 
 #endif
 
-#include "sched_idletask.c"
-#include "sched_fair.c"
-#include "sched_rt.c"
-#include "sched_autogroup.c"
-#include "sched_stoptask.c"
-#ifdef CONFIG_SCHED_DEBUG
-# include "sched_debug.c"
-#endif
-
 void sched_set_stop_task(int cpu, struct task_struct *stop)
 {
 	struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 };
@@ -2329,7 +1026,7 @@ static inline void check_class_changed(struct rq *rq, struct task_struct *p,
 		p->sched_class->prio_changed(rq, p, oldprio);
 }
 
-static void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags)
+void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags)
 {
 	const struct sched_class *class;
 
@@ -2355,38 +1052,6 @@ static void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags)
 }
 
 #ifdef CONFIG_SMP
-/*
- * Is this task likely cache-hot:
- */
-static int
-task_hot(struct task_struct *p, u64 now, struct sched_domain *sd)
-{
-	s64 delta;
-
-	if (p->sched_class != &fair_sched_class)
-		return 0;
-
-	if (unlikely(p->policy == SCHED_IDLE))
-		return 0;
-
-	/*
-	 * Buddy candidates are cache hot:
-	 */
-	if (sched_feat(CACHE_HOT_BUDDY) && this_rq()->nr_running &&
-			(&p->se == cfs_rq_of(&p->se)->next ||
-			 &p->se == cfs_rq_of(&p->se)->last))
-		return 1;
-
-	if (sysctl_sched_migration_cost == -1)
-		return 1;
-	if (sysctl_sched_migration_cost == 0)
-		return 0;
-
-	delta = now - p->se.exec_start;
-
-	return delta < (s64)sysctl_sched_migration_cost;
-}
-
 void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
 {
 #ifdef CONFIG_SCHED_DEBUG
@@ -3469,7 +2134,7 @@ calc_load(unsigned long load, unsigned long exp, unsigned long active)
  */
 static atomic_long_t calc_load_tasks_idle;
 
-static void calc_load_account_idle(struct rq *this_rq)
+void calc_load_account_idle(struct rq *this_rq)
 {
 	long delta;
 
@@ -3613,7 +2278,7 @@ static void calc_global_nohz(unsigned long ticks)
 	 */
 }
 #else
-static void calc_load_account_idle(struct rq *this_rq)
+void calc_load_account_idle(struct rq *this_rq)
 {
 }
 
@@ -3756,7 +2421,7 @@ decay_load_missed(unsigned long load, unsigned long missed_updates, int idx)
  * scheduler tick (TICK_NSEC). With tickless idle this will not be called
  * every tick. We fix it up based on jiffies.
  */
-static void update_cpu_load(struct rq *this_rq)
+void update_cpu_load(struct rq *this_rq)
 {
 	unsigned long this_load = this_rq->load.weight;
 	unsigned long curr_jiffies = jiffies;
@@ -6148,53 +4813,6 @@ void __cpuinit init_idle(struct task_struct *idle, int cpu)
 #endif
 }
 
-/*
- * Increase the granularity value when there are more CPUs,
- * because with more CPUs the 'effective latency' as visible
- * to users decreases. But the relationship is not linear,
- * so pick a second-best guess by going with the log2 of the
- * number of CPUs.
- *
- * This idea comes from the SD scheduler of Con Kolivas:
- */
-static int get_update_sysctl_factor(void)
-{
-	unsigned int cpus = min_t(int, num_online_cpus(), 8);
-	unsigned int factor;
-
-	switch (sysctl_sched_tunable_scaling) {
-	case SCHED_TUNABLESCALING_NONE:
-		factor = 1;
-		break;
-	case SCHED_TUNABLESCALING_LINEAR:
-		factor = cpus;
-		break;
-	case SCHED_TUNABLESCALING_LOG:
-	default:
-		factor = 1 + ilog2(cpus);
-		break;
-	}
-
-	return factor;
-}
-
-static void update_sysctl(void)
-{
-	unsigned int factor = get_update_sysctl_factor();
-
-#define SET_SYSCTL(name) \
-	(sysctl_##name = (factor) * normalized_sysctl_##name)
-	SET_SYSCTL(sched_min_granularity);
-	SET_SYSCTL(sched_latency);
-	SET_SYSCTL(sched_wakeup_granularity);
-#undef SET_SYSCTL
-}
-
-static inline void sched_init_granularity(void)
-{
-	update_sysctl();
-}
-
 #ifdef CONFIG_SMP
 void do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask)
 {
@@ -6381,30 +4999,6 @@ static void calc_global_load_remove(struct rq *rq)
 	rq->calc_load_active = 0;
 }
 
-#ifdef CONFIG_CFS_BANDWIDTH
-static void unthrottle_offline_cfs_rqs(struct rq *rq)
-{
-	struct cfs_rq *cfs_rq;
-
-	for_each_leaf_cfs_rq(rq, cfs_rq) {
-		struct cfs_bandwidth *cfs_b = tg_cfs_bandwidth(cfs_rq->tg);
-
-		if (!cfs_rq->runtime_enabled)
-			continue;
-
-		/*
-		 * clock_task is not advancing so we just need to make sure
-		 * there's some valid quota amount
-		 */
-		cfs_rq->runtime_remaining = cfs_b->quota;
-		if (cfs_rq_throttled(cfs_rq))
-			unthrottle_cfs_rq(cfs_rq);
-	}
-}
-#else
-static void unthrottle_offline_cfs_rqs(struct rq *rq) {}
-#endif
-
 /*
  * Migrate all tasks from the rq, sleeping tasks will be migrated by
  * try_to_wake_up()->select_task_rq().
@@ -7010,6 +5604,12 @@ out:
 	return -ENOMEM;
 }
 
+/*
+ * By default the system creates a single root-domain with all cpus as
+ * members (mimicking the global state we have today).
+ */
+struct root_domain def_root_domain;
+
 static void init_defrootdomain(void)
 {
 	init_rootdomain(&def_root_domain);
@@ -7418,6 +6018,11 @@ static void init_sched_groups_power(int cpu, struct sched_domain *sd)
 	update_group_power(sd, cpu);
 }
 
+int __weak arch_sd_sibling_asym_packing(void)
+{
+       return 0*SD_ASYM_PACKING;
+}
+
 /*
  * Initializers for schedule domains
  * Non-inlined to reduce accumulated stack pressure in build_sched_domains()
@@ -8053,29 +6658,6 @@ static int cpuset_cpu_inactive(struct notifier_block *nfb, unsigned long action,
 	}
 }
 
-static int update_runtime(struct notifier_block *nfb,
-				unsigned long action, void *hcpu)
-{
-	int cpu = (int)(long)hcpu;
-
-	switch (action) {
-	case CPU_DOWN_PREPARE:
-	case CPU_DOWN_PREPARE_FROZEN:
-		disable_runtime(cpu_rq(cpu));
-		return NOTIFY_OK;
-
-	case CPU_DOWN_FAILED:
-	case CPU_DOWN_FAILED_FROZEN:
-	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
-		enable_runtime(cpu_rq(cpu));
-		return NOTIFY_OK;
-
-	default:
-		return NOTIFY_DONE;
-	}
-}
-
 void __init sched_init_smp(void)
 {
 	cpumask_var_t non_isolated_cpus;
@@ -8124,104 +6706,11 @@ int in_sched_functions(unsigned long addr)
 		&& addr < (unsigned long)__sched_text_end);
 }
 
-static void init_cfs_rq(struct cfs_rq *cfs_rq)
-{
-	cfs_rq->tasks_timeline = RB_ROOT;
-	INIT_LIST_HEAD(&cfs_rq->tasks);
-	cfs_rq->min_vruntime = (u64)(-(1LL << 20));
-#ifndef CONFIG_64BIT
-	cfs_rq->min_vruntime_copy = cfs_rq->min_vruntime;
-#endif
-}
-
-static void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
-{
-	struct rt_prio_array *array;
-	int i;
-
-	array = &rt_rq->active;
-	for (i = 0; i < MAX_RT_PRIO; i++) {
-		INIT_LIST_HEAD(array->queue + i);
-		__clear_bit(i, array->bitmap);
-	}
-	/* delimiter for bitsearch: */
-	__set_bit(MAX_RT_PRIO, array->bitmap);
-
-#if defined CONFIG_SMP
-	rt_rq->highest_prio.curr = MAX_RT_PRIO;
-	rt_rq->highest_prio.next = MAX_RT_PRIO;
-	rt_rq->rt_nr_migratory = 0;
-	rt_rq->overloaded = 0;
-	plist_head_init(&rt_rq->pushable_tasks);
-#endif
-
-	rt_rq->rt_time = 0;
-	rt_rq->rt_throttled = 0;
-	rt_rq->rt_runtime = 0;
-	raw_spin_lock_init(&rt_rq->rt_runtime_lock);
-}
-
-#ifdef CONFIG_FAIR_GROUP_SCHED
-static void init_tg_cfs_entry(struct task_group *tg, struct cfs_rq *cfs_rq,
-				struct sched_entity *se, int cpu,
-				struct sched_entity *parent)
-{
-	struct rq *rq = cpu_rq(cpu);
-
-	cfs_rq->tg = tg;
-	cfs_rq->rq = rq;
-#ifdef CONFIG_SMP
-	/* allow initial update_cfs_load() to truncate */
-	cfs_rq->load_stamp = 1;
-#endif
-	init_cfs_rq_runtime(cfs_rq);
-
-	tg->cfs_rq[cpu] = cfs_rq;
-	tg->se[cpu] = se;
-
-	/* se could be NULL for root_task_group */
-	if (!se)
-		return;
-
-	if (!parent)
-		se->cfs_rq = &rq->cfs;
-	else
-		se->cfs_rq = parent->my_q;
-
-	se->my_q = cfs_rq;
-	update_load_set(&se->load, 0);
-	se->parent = parent;
-}
+#ifdef CONFIG_CGROUP_SCHED
+struct task_group root_task_group;
 #endif
 
-#ifdef CONFIG_RT_GROUP_SCHED
-static void init_tg_rt_entry(struct task_group *tg, struct rt_rq *rt_rq,
-		struct sched_rt_entity *rt_se, int cpu,
-		struct sched_rt_entity *parent)
-{
-	struct rq *rq = cpu_rq(cpu);
-
-	rt_rq->highest_prio.curr = MAX_RT_PRIO;
-	rt_rq->rt_nr_boosted = 0;
-	rt_rq->rq = rq;
-	rt_rq->tg = tg;
-
-	tg->rt_rq[cpu] = rt_rq;
-	tg->rt_se[cpu] = rt_se;
-
-	if (!rt_se)
-		return;
-
-	if (!parent)
-		rt_se->rt_rq = &rq->rt;
-	else
-		rt_se->rt_rq = parent->my_q;
-
-	rt_se->my_q = rt_rq;
-	rt_se->parent = parent;
-	INIT_LIST_HEAD(&rt_se->run_list);
-}
-#endif
+DECLARE_PER_CPU(cpumask_var_t, load_balance_tmpmask);
 
 void __init sched_init(void)
 {
@@ -8294,7 +6783,7 @@ void __init sched_init(void)
 		init_cfs_rq(&rq->cfs);
 		init_rt_rq(&rq->rt, rq);
 #ifdef CONFIG_FAIR_GROUP_SCHED
-		root_task_group.shares = root_task_group_load;
+		root_task_group.shares = ROOT_TASK_GROUP_LOAD;
 		INIT_LIST_HEAD(&rq->leaf_cfs_rq_list);
 		/*
 		 * How much cpu bandwidth does root_task_group get?
@@ -8357,10 +6846,6 @@ void __init sched_init(void)
 	INIT_HLIST_HEAD(&init_task.preempt_notifiers);
 #endif
 
-#ifdef CONFIG_SMP
-	open_softirq(SCHED_SOFTIRQ, run_rebalance_domains);
-#endif
-
 #ifdef CONFIG_RT_MUTEXES
 	plist_head_init(&init_task.pi_waiters);
 #endif
@@ -8388,17 +6873,11 @@ void __init sched_init(void)
 
 #ifdef CONFIG_SMP
 	zalloc_cpumask_var(&sched_domains_tmpmask, GFP_NOWAIT);
-#ifdef CONFIG_NO_HZ
-	zalloc_cpumask_var(&nohz.idle_cpus_mask, GFP_NOWAIT);
-	alloc_cpumask_var(&nohz.grp_idle_mask, GFP_NOWAIT);
-	atomic_set(&nohz.load_balancer, nr_cpu_ids);
-	atomic_set(&nohz.first_pick_cpu, nr_cpu_ids);
-	atomic_set(&nohz.second_pick_cpu, nr_cpu_ids);
-#endif
 	/* May be allocated at isolcpus cmdline parse time */
 	if (cpu_isolated_map == NULL)
 		zalloc_cpumask_var(&cpu_isolated_map, GFP_NOWAIT);
-#endif /* SMP */
+#endif
+	init_sched_fair_class();
 
 	scheduler_running = 1;
 }
@@ -8550,169 +7029,14 @@ void set_curr_task(int cpu, struct task_struct *p)
 
 #endif
 
-#ifdef CONFIG_FAIR_GROUP_SCHED
-static void free_fair_sched_group(struct task_group *tg)
-{
-	int i;
-
-	destroy_cfs_bandwidth(tg_cfs_bandwidth(tg));
-
-	for_each_possible_cpu(i) {
-		if (tg->cfs_rq)
-			kfree(tg->cfs_rq[i]);
-		if (tg->se)
-			kfree(tg->se[i]);
-	}
-
-	kfree(tg->cfs_rq);
-	kfree(tg->se);
-}
-
-static
-int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
-{
-	struct cfs_rq *cfs_rq;
-	struct sched_entity *se;
-	int i;
-
-	tg->cfs_rq = kzalloc(sizeof(cfs_rq) * nr_cpu_ids, GFP_KERNEL);
-	if (!tg->cfs_rq)
-		goto err;
-	tg->se = kzalloc(sizeof(se) * nr_cpu_ids, GFP_KERNEL);
-	if (!tg->se)
-		goto err;
-
-	tg->shares = NICE_0_LOAD;
-
-	init_cfs_bandwidth(tg_cfs_bandwidth(tg));
-
-	for_each_possible_cpu(i) {
-		cfs_rq = kzalloc_node(sizeof(struct cfs_rq),
-				      GFP_KERNEL, cpu_to_node(i));
-		if (!cfs_rq)
-			goto err;
-
-		se = kzalloc_node(sizeof(struct sched_entity),
-				  GFP_KERNEL, cpu_to_node(i));
-		if (!se)
-			goto err_free_rq;
-
-		init_cfs_rq(cfs_rq);
-		init_tg_cfs_entry(tg, cfs_rq, se, i, parent->se[i]);
-	}
-
-	return 1;
-
-err_free_rq:
-	kfree(cfs_rq);
-err:
-	return 0;
-}
-
-static inline void unregister_fair_sched_group(struct task_group *tg, int cpu)
-{
-	struct rq *rq = cpu_rq(cpu);
-	unsigned long flags;
-
-	/*
-	* Only empty task groups can be destroyed; so we can speculatively
-	* check on_list without danger of it being re-added.
-	*/
-	if (!tg->cfs_rq[cpu]->on_list)
-		return;
-
-	raw_spin_lock_irqsave(&rq->lock, flags);
-	list_del_leaf_cfs_rq(tg->cfs_rq[cpu]);
-	raw_spin_unlock_irqrestore(&rq->lock, flags);
-}
-#else /* !CONFIG_FAIR_GROUP_SCHED */
-static inline void free_fair_sched_group(struct task_group *tg)
-{
-}
-
-static inline
-int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
-{
-	return 1;
-}
-
-static inline void unregister_fair_sched_group(struct task_group *tg, int cpu)
-{
-}
-#endif /* CONFIG_FAIR_GROUP_SCHED */
-
 #ifdef CONFIG_RT_GROUP_SCHED
-static void free_rt_sched_group(struct task_group *tg)
-{
-	int i;
-
-	if (tg->rt_se)
-		destroy_rt_bandwidth(&tg->rt_bandwidth);
-
-	for_each_possible_cpu(i) {
-		if (tg->rt_rq)
-			kfree(tg->rt_rq[i]);
-		if (tg->rt_se)
-			kfree(tg->rt_se[i]);
-	}
-
-	kfree(tg->rt_rq);
-	kfree(tg->rt_se);
-}
-
-static
-int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent)
-{
-	struct rt_rq *rt_rq;
-	struct sched_rt_entity *rt_se;
-	int i;
-
-	tg->rt_rq = kzalloc(sizeof(rt_rq) * nr_cpu_ids, GFP_KERNEL);
-	if (!tg->rt_rq)
-		goto err;
-	tg->rt_se = kzalloc(sizeof(rt_se) * nr_cpu_ids, GFP_KERNEL);
-	if (!tg->rt_se)
-		goto err;
-
-	init_rt_bandwidth(&tg->rt_bandwidth,
-			ktime_to_ns(def_rt_bandwidth.rt_period), 0);
-
-	for_each_possible_cpu(i) {
-		rt_rq = kzalloc_node(sizeof(struct rt_rq),
-				     GFP_KERNEL, cpu_to_node(i));
-		if (!rt_rq)
-			goto err;
-
-		rt_se = kzalloc_node(sizeof(struct sched_rt_entity),
-				     GFP_KERNEL, cpu_to_node(i));
-		if (!rt_se)
-			goto err_free_rq;
-
-		init_rt_rq(rt_rq, cpu_rq(i));
-		rt_rq->rt_runtime = tg->rt_bandwidth.rt_runtime;
-		init_tg_rt_entry(tg, rt_rq, rt_se, i, parent->rt_se[i]);
-	}
-
-	return 1;
-
-err_free_rq:
-	kfree(rt_rq);
-err:
-	return 0;
-}
 #else /* !CONFIG_RT_GROUP_SCHED */
-static inline void free_rt_sched_group(struct task_group *tg)
-{
-}
-
-static inline
-int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent)
-{
-	return 1;
-}
 #endif /* CONFIG_RT_GROUP_SCHED */
 
 #ifdef CONFIG_CGROUP_SCHED
+/* task_group_lock serializes the addition/removal of task groups */
+static DEFINE_SPINLOCK(task_group_lock);
+
 static void free_sched_group(struct task_group *tg)
 {
 	free_fair_sched_group(tg);
@@ -8818,47 +7142,6 @@ void sched_move_task(struct task_struct *tsk)
 #endif /* CONFIG_CGROUP_SCHED */
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
-static DEFINE_MUTEX(shares_mutex);
-
-int sched_group_set_shares(struct task_group *tg, unsigned long shares)
-{
-	int i;
-	unsigned long flags;
-
-	/*
-	 * We can't change the weight of the root cgroup.
-	 */
-	if (!tg->se[0])
-		return -EINVAL;
-
-	shares = clamp(shares, scale_load(MIN_SHARES), scale_load(MAX_SHARES));
-
-	mutex_lock(&shares_mutex);
-	if (tg->shares == shares)
-		goto done;
-
-	tg->shares = shares;
-	for_each_possible_cpu(i) {
-		struct rq *rq = cpu_rq(i);
-		struct sched_entity *se;
-
-		se = tg->se[i];
-		/* Propagate contribution to hierarchy */
-		raw_spin_lock_irqsave(&rq->lock, flags);
-		for_each_sched_entity(se)
-			update_cfs_shares(group_cfs_rq(se));
-		raw_spin_unlock_irqrestore(&rq->lock, flags);
-	}
-
-done:
-	mutex_unlock(&shares_mutex);
-	return 0;
-}
-
-unsigned long sched_group_shares(struct task_group *tg)
-{
-	return tg->shares;
-}
 #endif
 
 #if defined(CONFIG_RT_GROUP_SCHED) || defined(CONFIG_CFS_BANDWIDTH)
@@ -8883,7 +7166,7 @@ static inline int tg_has_rt_tasks(struct task_group *tg)
 	struct task_struct *g, *p;
 
 	do_each_thread(g, p) {
-		if (rt_task(p) && rt_rq_of_se(&p->rt)->tg == tg)
+		if (rt_task(p) && task_rq(p)->rt.tg == tg)
 			return 1;
 	} while_each_thread(g, p);
 
@@ -9235,7 +7518,7 @@ static int __cfs_schedulable(struct task_group *tg, u64 period, u64 runtime);
 static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota)
 {
 	int i, ret = 0, runtime_enabled, runtime_was_enabled;
-	struct cfs_bandwidth *cfs_b = tg_cfs_bandwidth(tg);
+	struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth;
 
 	if (tg == &root_task_group)
 		return -EINVAL;
@@ -9264,7 +7547,6 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota)
 	runtime_enabled = quota != RUNTIME_INF;
 	runtime_was_enabled = cfs_b->quota != RUNTIME_INF;
 	account_cfs_bandwidth_used(runtime_enabled, runtime_was_enabled);
-
 	raw_spin_lock_irq(&cfs_b->lock);
 	cfs_b->period = ns_to_ktime(period);
 	cfs_b->quota = quota;
@@ -9280,13 +7562,13 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota)
 
 	for_each_possible_cpu(i) {
 		struct cfs_rq *cfs_rq = tg->cfs_rq[i];
-		struct rq *rq = rq_of(cfs_rq);
+		struct rq *rq = cfs_rq->rq;
 
 		raw_spin_lock_irq(&rq->lock);
 		cfs_rq->runtime_enabled = runtime_enabled;
 		cfs_rq->runtime_remaining = 0;
 
-		if (cfs_rq_throttled(cfs_rq))
+		if (cfs_rq->throttled)
 			unthrottle_cfs_rq(cfs_rq);
 		raw_spin_unlock_irq(&rq->lock);
 	}
@@ -9300,7 +7582,7 @@ int tg_set_cfs_quota(struct task_group *tg, long cfs_quota_us)
 {
 	u64 quota, period;
 
-	period = ktime_to_ns(tg_cfs_bandwidth(tg)->period);
+	period = ktime_to_ns(tg->cfs_bandwidth.period);
 	if (cfs_quota_us < 0)
 		quota = RUNTIME_INF;
 	else
@@ -9313,10 +7595,10 @@ long tg_get_cfs_quota(struct task_group *tg)
 {
 	u64 quota_us;
 
-	if (tg_cfs_bandwidth(tg)->quota == RUNTIME_INF)
+	if (tg->cfs_bandwidth.quota == RUNTIME_INF)
 		return -1;
 
-	quota_us = tg_cfs_bandwidth(tg)->quota;
+	quota_us = tg->cfs_bandwidth.quota;
 	do_div(quota_us, NSEC_PER_USEC);
 
 	return quota_us;
@@ -9327,7 +7609,7 @@ int tg_set_cfs_period(struct task_group *tg, long cfs_period_us)
 	u64 quota, period;
 
 	period = (u64)cfs_period_us * NSEC_PER_USEC;
-	quota = tg_cfs_bandwidth(tg)->quota;
+	quota = tg->cfs_bandwidth.quota;
 
 	if (period <= 0)
 		return -EINVAL;
@@ -9339,7 +7621,7 @@ long tg_get_cfs_period(struct task_group *tg)
 {
 	u64 cfs_period_us;
 
-	cfs_period_us = ktime_to_ns(tg_cfs_bandwidth(tg)->period);
+	cfs_period_us = ktime_to_ns(tg->cfs_bandwidth.period);
 	do_div(cfs_period_us, NSEC_PER_USEC);
 
 	return cfs_period_us;
@@ -9399,13 +7681,13 @@ static u64 normalize_cfs_quota(struct task_group *tg,
 static int tg_cfs_schedulable_down(struct task_group *tg, void *data)
 {
 	struct cfs_schedulable_data *d = data;
-	struct cfs_bandwidth *cfs_b = tg_cfs_bandwidth(tg);
+	struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth;
 	s64 quota = 0, parent_quota = -1;
 
 	if (!tg->parent) {
 		quota = RUNTIME_INF;
 	} else {
-		struct cfs_bandwidth *parent_b = tg_cfs_bandwidth(tg->parent);
+		struct cfs_bandwidth *parent_b = &tg->parent->cfs_bandwidth;
 
 		quota = normalize_cfs_quota(tg, d);
 		parent_quota = parent_b->hierarchal_quota;
@@ -9449,7 +7731,7 @@ static int cpu_stats_show(struct cgroup *cgrp, struct cftype *cft,
 		struct cgroup_map_cb *cb)
 {
 	struct task_group *tg = cgroup_tg(cgrp);
-	struct cfs_bandwidth *cfs_b = tg_cfs_bandwidth(tg);
+	struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth;
 
 	cb->fill(cb, "nr_periods", cfs_b->nr_periods);
 	cb->fill(cb, "nr_throttled", cfs_b->nr_throttled);
@@ -9748,7 +8030,7 @@ static int cpuacct_populate(struct cgroup_subsys *ss, struct cgroup *cgrp)
  *
  * called with rq->lock held.
  */
-static void cpuacct_charge(struct task_struct *tsk, u64 cputime)
+void cpuacct_charge(struct task_struct *tsk, u64 cputime)
 {
 	struct cpuacct *ca;
 	int cpu;
@@ -9790,7 +8072,7 @@ static void cpuacct_charge(struct task_struct *tsk, u64 cputime)
 /*
  * Charge the system/user time to the task's accounting group.
  */
-static void cpuacct_update_stats(struct task_struct *tsk,
+void cpuacct_update_stats(struct task_struct *tsk,
 		enum cpuacct_stat_index idx, cputime_t val)
 {
 	struct cpuacct *ca;