diff options
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index b3c5653e1dc..88c85b21d63 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -6,6 +6,7 @@ #include <linux/spinlock.h> #include <linux/stop_machine.h> #include <linux/tick.h> +#include <linux/slab.h> #include "cpupri.h" #include "cpuacct.h" @@ -408,6 +409,10 @@ struct rq { * remote CPUs use both these fields when doing load calculation. */ unsigned int nr_running; +#ifdef CONFIG_NUMA_BALANCING + unsigned int nr_numa_running; + unsigned int nr_preferred_running; +#endif #define CPU_LOAD_IDX_MAX 5 unsigned long cpu_load[CPU_LOAD_IDX_MAX]; unsigned long last_load_update_tick; @@ -476,6 +481,9 @@ struct rq { u64 age_stamp; u64 idle_stamp; u64 avg_idle; + + /* This is used to determine avg_idle's max value */ + u64 max_idle_balance_cost; #endif #ifdef CONFIG_IRQ_TIME_ACCOUNTING @@ -552,6 +560,12 @@ static inline u64 rq_clock_task(struct rq *rq) return rq->clock_task; } +#ifdef CONFIG_NUMA_BALANCING +extern void sched_setnuma(struct task_struct *p, int node); +extern int migrate_task_to(struct task_struct *p, int cpu); +extern int migrate_swap(struct task_struct *, struct task_struct *); +#endif /* CONFIG_NUMA_BALANCING */ + #ifdef CONFIG_SMP #define rcu_dereference_check_sched_domain(p) \ @@ -593,9 +607,24 @@ static inline struct sched_domain *highest_flag_domain(int cpu, int flag) return hsd; } +static inline struct sched_domain *lowest_flag_domain(int cpu, int flag) +{ + struct sched_domain *sd; + + for_each_domain(cpu, sd) { + if (sd->flags & flag) + break; + } + + return sd; +} + DECLARE_PER_CPU(struct sched_domain *, sd_llc); DECLARE_PER_CPU(int, sd_llc_size); DECLARE_PER_CPU(int, sd_llc_id); +DECLARE_PER_CPU(struct sched_domain *, sd_numa); +DECLARE_PER_CPU(struct sched_domain *, sd_busy); +DECLARE_PER_CPU(struct sched_domain *, sd_asym); struct sched_group_power { atomic_t ref; @@ -605,6 +634,7 @@ struct sched_group_power { */ unsigned int power, power_orig; unsigned long next_update; + int imbalance; /* XXX unrelated to power but shared group state */ /* * Number of busy cpus in this group. */ @@ -719,6 +749,7 @@ static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu) */ smp_wmb(); task_thread_info(p)->cpu = cpu; + p->wake_cpu = cpu; #endif } @@ -974,7 +1005,7 @@ struct sched_class { void (*put_prev_task) (struct rq *rq, struct task_struct *p); #ifdef CONFIG_SMP - int (*select_task_rq)(struct task_struct *p, int sd_flag, int flags); + int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags); void (*migrate_task_rq)(struct task_struct *p, int next_cpu); void (*pre_schedule) (struct rq *this_rq, struct task_struct *task); @@ -1220,6 +1251,24 @@ static inline void double_unlock_balance(struct rq *this_rq, struct rq *busiest) lock_set_subclass(&this_rq->lock.dep_map, 0, _RET_IP_); } +static inline void double_lock(spinlock_t *l1, spinlock_t *l2) +{ + if (l1 > l2) + swap(l1, l2); + + spin_lock(l1); + spin_lock_nested(l2, SINGLE_DEPTH_NESTING); +} + +static inline void double_raw_lock(raw_spinlock_t *l1, raw_spinlock_t *l2) +{ + if (l1 > l2) + swap(l1, l2); + + raw_spin_lock(l1); + raw_spin_lock_nested(l2, SINGLE_DEPTH_NESTING); +} + /* * double_rq_lock - safely lock two runqueues * @@ -1305,7 +1354,8 @@ extern void print_rt_stats(struct seq_file *m, int cpu); extern void init_cfs_rq(struct cfs_rq *cfs_rq); extern void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq); -extern void account_cfs_bandwidth_used(int enabled, int was_enabled); +extern void cfs_bandwidth_usage_inc(void); +extern void cfs_bandwidth_usage_dec(void); #ifdef CONFIG_NO_HZ_COMMON enum rq_nohz_flag_bits { |