diff options
| -rw-r--r-- | include/linux/sched.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 90420321994f..995eb407c234 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -820,6 +820,86 @@ enum sleep_type { }; struct prio_array; +struct rq; +struct sched_domain; + +struct sched_class { + struct sched_class *next; + + void (*enqueue_task) (struct rq *rq, struct task_struct *p, + int wakeup, u64 now); + void (*dequeue_task) (struct rq *rq, struct task_struct *p, + int sleep, u64 now); + void (*yield_task) (struct rq *rq, struct task_struct *p); + + void (*check_preempt_curr) (struct rq *rq, struct task_struct *p); + + struct task_struct * (*pick_next_task) (struct rq *rq, u64 now); + void (*put_prev_task) (struct rq *rq, struct task_struct *p, u64 now); + + int (*load_balance) (struct rq *this_rq, int this_cpu, + struct rq *busiest, + unsigned long max_nr_move, unsigned long max_load_move, + struct sched_domain *sd, enum cpu_idle_type idle, + int *all_pinned, unsigned long *total_load_moved); + + void (*set_curr_task) (struct rq *rq); + void (*task_tick) (struct rq *rq, struct task_struct *p); + void (*task_new) (struct rq *rq, struct task_struct *p); +}; + +struct load_weight { + unsigned long weight, inv_weight; +}; + +/* + * CFS stats for a schedulable entity (task, task-group etc) + * + * Current field usage histogram: + * + * 4 se->block_start + * 4 se->run_node + * 4 se->sleep_start + * 4 se->sleep_start_fair + * 6 se->load.weight + * 7 se->delta_fair + * 15 se->wait_runtime + */ +struct sched_entity { + long wait_runtime; + unsigned long delta_fair_run; + unsigned long delta_fair_sleep; + unsigned long delta_exec; + s64 fair_key; + struct load_weight load; /* for load-balancing */ + struct rb_node run_node; + unsigned int on_rq; + + u64 wait_start_fair; + u64 wait_start; + u64 exec_start; + u64 sleep_start; + u64 sleep_start_fair; + u64 block_start; + u64 sleep_max; + u64 block_max; + u64 exec_max; + u64 wait_max; + u64 last_ran; + + u64 sum_exec_runtime; + s64 sum_wait_runtime; + s64 sum_sleep_runtime; + unsigned long wait_runtime_overruns; + unsigned long wait_runtime_underruns; +#ifdef CONFIG_FAIR_GROUP_SCHED + struct sched_entity *parent; + /* rq on which this entity is (to be) queued: */ + struct cfs_rq *cfs_rq; + /* rq "owned" by this entity/group: */ + struct cfs_rq *my_q; +#endif +}; struct task_struct { volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */ @@ -839,6 +919,8 @@ struct task_struct { int prio, static_prio, normal_prio; struct list_head run_list; struct prio_array *array; + struct sched_class *sched_class; + struct sched_entity se; unsigned short ioprio; #ifdef CONFIG_BLK_DEV_IO_TRACE |