diff options
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 176 |
1 files changed, 72 insertions, 104 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 833f7dc2b8d..592e3a55f81 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1,8 +1,6 @@ #ifndef _LINUX_SCHED_H #define _LINUX_SCHED_H -#include <linux/auxvec.h> /* For AT_VECTOR_SIZE */ - /* * cloning flags: */ @@ -58,12 +56,12 @@ struct sched_param { #include <linux/cpumask.h> #include <linux/errno.h> #include <linux/nodemask.h> +#include <linux/mm_types.h> #include <asm/system.h> #include <asm/semaphore.h> #include <asm/page.h> #include <asm/ptrace.h> -#include <asm/mmu.h> #include <asm/cputime.h> #include <linux/smp.h> @@ -87,6 +85,7 @@ struct sched_param { #include <linux/timer.h> #include <linux/hrtimer.h> #include <linux/task_io_accounting.h> +#include <linux/kobject.h> #include <asm/processor.h> @@ -136,6 +135,7 @@ extern unsigned long weighted_cpuload(const int cpu); struct seq_file; struct cfs_rq; +struct task_group; #ifdef CONFIG_SCHED_DEBUG extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m); extern void proc_sched_set_task(struct task_struct *p); @@ -174,8 +174,7 @@ print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) #define EXIT_ZOMBIE 16 #define EXIT_DEAD 32 /* in tsk->state again */ -#define TASK_NONINTERACTIVE 64 -#define TASK_DEAD 128 +#define TASK_DEAD 64 #define __set_task_state(tsk, state_value) \ do { (tsk)->state = (state_value); } while (0) @@ -318,7 +317,6 @@ extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long); #define add_mm_counter(mm, member, value) atomic_long_add(value, &(mm)->_##member) #define inc_mm_counter(mm, member) atomic_long_inc(&(mm)->_##member) #define dec_mm_counter(mm, member) atomic_long_dec(&(mm)->_##member) -typedef atomic_long_t mm_counter_t; #else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ /* @@ -330,7 +328,6 @@ typedef atomic_long_t mm_counter_t; #define add_mm_counter(mm, member, value) (mm)->_##member += (value) #define inc_mm_counter(mm, member) (mm)->_##member++ #define dec_mm_counter(mm, member) (mm)->_##member-- -typedef unsigned long mm_counter_t; #endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ @@ -367,74 +364,6 @@ extern int get_dumpable(struct mm_struct *mm); #define MMF_DUMP_FILTER_DEFAULT \ ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED)) -struct mm_struct { - struct vm_area_struct * mmap; /* list of VMAs */ - struct rb_root mm_rb; - struct vm_area_struct * mmap_cache; /* last find_vma result */ - unsigned long (*get_unmapped_area) (struct file *filp, - unsigned long addr, unsigned long len, - unsigned long pgoff, unsigned long flags); - void (*unmap_area) (struct mm_struct *mm, unsigned long addr); - unsigned long mmap_base; /* base of mmap area */ - unsigned long task_size; /* size of task vm space */ - unsigned long cached_hole_size; /* if non-zero, the largest hole below free_area_cache */ - unsigned long free_area_cache; /* first hole of size cached_hole_size or larger */ - pgd_t * pgd; - atomic_t mm_users; /* How many users with user space? */ - atomic_t mm_count; /* How many references to "struct mm_struct" (users count as 1) */ - int map_count; /* number of VMAs */ - struct rw_semaphore mmap_sem; - spinlock_t page_table_lock; /* Protects page tables and some counters */ - - struct list_head mmlist; /* List of maybe swapped mm's. These are globally strung - * together off init_mm.mmlist, and are protected - * by mmlist_lock - */ - - /* Special counters, in some configurations protected by the - * page_table_lock, in other configurations by being atomic. - */ - mm_counter_t _file_rss; - mm_counter_t _anon_rss; - - unsigned long hiwater_rss; /* High-watermark of RSS usage */ - unsigned long hiwater_vm; /* High-water virtual memory usage */ - - unsigned long total_vm, locked_vm, shared_vm, exec_vm; - unsigned long stack_vm, reserved_vm, def_flags, nr_ptes; - unsigned long start_code, end_code, start_data, end_data; - unsigned long start_brk, brk, start_stack; - unsigned long arg_start, arg_end, env_start, env_end; - - unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */ - - cpumask_t cpu_vm_mask; - - /* Architecture-specific MM context */ - mm_context_t context; - - /* Swap token stuff */ - /* - * Last value of global fault stamp as seen by this process. - * In other words, this value gives an indication of how long - * it has been since this task got the token. - * Look at mm/thrash.c - */ - unsigned int faultstamp; - unsigned int token_priority; - unsigned int last_interval; - - unsigned long flags; /* Must use atomic bitops to access the bits */ - - /* coredumping support */ - int core_waiters; - struct completion *core_startup_done, core_done; - - /* aio bits */ - rwlock_t ioctx_list_lock; - struct kioctx *ioctx_list; -}; - struct sighand_struct { atomic_t count; struct k_sigaction action[_NSIG]; @@ -516,6 +445,8 @@ struct signal_struct { * in __exit_signal, except for the group leader. */ cputime_t utime, stime, cutime, cstime; + cputime_t gtime; + cputime_t cgtime; unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw; unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt; unsigned long inblock, oublock, cinblock, coublock; @@ -596,8 +527,21 @@ struct user_struct { /* Hash table maintenance information */ struct hlist_node uidhash_node; uid_t uid; + +#ifdef CONFIG_FAIR_USER_SCHED + struct task_group *tg; + struct kset kset; + struct subsys_attribute user_attr; + struct work_struct work; +#endif }; +#ifdef CONFIG_FAIR_USER_SCHED +extern int uids_kobject_init(void); +#else +static inline int uids_kobject_init(void) { return 0; } +#endif + extern struct user_struct *find_user(uid_t); extern struct user_struct root_user; @@ -609,13 +553,17 @@ struct reclaim_state; #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) struct sched_info { /* cumulative counters */ - unsigned long pcnt; /* # of times run on this cpu */ + unsigned long pcount; /* # of times run on this cpu */ unsigned long long cpu_time, /* time spent on the cpu */ run_delay; /* time spent waiting on a runqueue */ /* timestamps */ unsigned long long last_arrival,/* when we last ran on a cpu */ last_queued; /* when we were last queued to run */ +#ifdef CONFIG_SCHEDSTATS + /* BKL stats */ + unsigned long bkl_count; +#endif }; #endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */ @@ -750,7 +698,7 @@ struct sched_domain { #ifdef CONFIG_SCHEDSTATS /* load_balance() stats */ - unsigned long lb_cnt[CPU_MAX_IDLE_TYPES]; + unsigned long lb_count[CPU_MAX_IDLE_TYPES]; unsigned long lb_failed[CPU_MAX_IDLE_TYPES]; unsigned long lb_balanced[CPU_MAX_IDLE_TYPES]; unsigned long lb_imbalance[CPU_MAX_IDLE_TYPES]; @@ -760,17 +708,17 @@ struct sched_domain { unsigned long lb_nobusyq[CPU_MAX_IDLE_TYPES]; /* Active load balancing */ - unsigned long alb_cnt; + unsigned long alb_count; unsigned long alb_failed; unsigned long alb_pushed; /* SD_BALANCE_EXEC stats */ - unsigned long sbe_cnt; + unsigned long sbe_count; unsigned long sbe_balanced; unsigned long sbe_pushed; /* SD_BALANCE_FORK stats */ - unsigned long sbf_cnt; + unsigned long sbf_count; unsigned long sbf_balanced; unsigned long sbf_pushed; @@ -781,9 +729,6 @@ struct sched_domain { #endif }; -extern int partition_sched_domains(cpumask_t *partition1, - cpumask_t *partition2); - #endif /* CONFIG_SMP */ /* @@ -854,11 +799,11 @@ struct rq; struct sched_domain; struct sched_class { - struct sched_class *next; + const struct sched_class *next; void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup); void (*dequeue_task) (struct rq *rq, struct task_struct *p, int sleep); - void (*yield_task) (struct rq *rq, struct task_struct *p); + void (*yield_task) (struct rq *rq); void (*check_preempt_curr) (struct rq *rq, struct task_struct *p); @@ -888,31 +833,22 @@ struct load_weight { * 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; + int peer_preempt; u64 exec_start; u64 sum_exec_runtime; + u64 vruntime; u64 prev_sum_exec_runtime; - u64 wait_start_fair; - u64 sleep_start_fair; #ifdef CONFIG_SCHEDSTATS u64 wait_start; u64 wait_max; - s64 sum_wait_runtime; u64 sleep_start; u64 sleep_max; @@ -921,9 +857,25 @@ struct sched_entity { u64 block_start; u64 block_max; u64 exec_max; - - unsigned long wait_runtime_overruns; - unsigned long wait_runtime_underruns; + u64 slice_max; + + u64 nr_migrations; + u64 nr_migrations_cold; + u64 nr_failed_migrations_affine; + u64 nr_failed_migrations_running; + u64 nr_failed_migrations_hot; + u64 nr_forced_migrations; + u64 nr_forced2_migrations; + + u64 nr_wakeups; + u64 nr_wakeups_sync; + u64 nr_wakeups_migrate; + u64 nr_wakeups_local; + u64 nr_wakeups_remote; + u64 nr_wakeups_affine; + u64 nr_wakeups_affine_attempts; + u64 nr_wakeups_passive; + u64 nr_wakeups_idle; #endif #ifdef CONFIG_FAIR_GROUP_SCHED @@ -952,7 +904,7 @@ struct task_struct { int prio, static_prio, normal_prio; struct list_head run_list; - struct sched_class *sched_class; + const struct sched_class *sched_class; struct sched_entity se; #ifdef CONFIG_PREEMPT_NOTIFIERS @@ -1023,6 +975,7 @@ struct task_struct { unsigned int rt_priority; cputime_t utime, stime; + cputime_t gtime; unsigned long nvcsw, nivcsw; /* context switch counts */ struct timespec start_time; /* monotonic time */ struct timespec real_start_time; /* boot based time */ @@ -1314,6 +1267,7 @@ static inline void put_task_struct(struct task_struct *t) #define PF_STARTING 0x00000002 /* being created */ #define PF_EXITING 0x00000004 /* getting shut down */ #define PF_EXITPIDONE 0x00000008 /* pi exit done on shut down */ +#define PF_VCPU 0x00000010 /* I'm a virtual CPU */ #define PF_FORKNOEXEC 0x00000040 /* forked but didn't exec */ #define PF_SUPERPRIV 0x00000100 /* used super-user privileges */ #define PF_DUMPCORE 0x00000200 /* dumped core */ @@ -1401,15 +1355,17 @@ static inline void idle_task_exit(void) {} extern void sched_idle_next(void); +#ifdef CONFIG_SCHED_DEBUG extern unsigned int sysctl_sched_latency; -extern unsigned int sysctl_sched_min_granularity; +extern unsigned int sysctl_sched_nr_latency; extern unsigned int sysctl_sched_wakeup_granularity; extern unsigned int sysctl_sched_batch_wakeup_granularity; -extern unsigned int sysctl_sched_stat_granularity; -extern unsigned int sysctl_sched_runtime_limit; -extern unsigned int sysctl_sched_compat_yield; extern unsigned int sysctl_sched_child_runs_first; extern unsigned int sysctl_sched_features; +extern unsigned int sysctl_sched_migration_cost; +#endif + +extern unsigned int sysctl_sched_compat_yield; #ifdef CONFIG_RT_MUTEXES extern int rt_mutex_getprio(struct task_struct *p); @@ -1843,6 +1799,18 @@ extern int sched_mc_power_savings, sched_smt_power_savings; extern void normalize_rt_tasks(void); +#ifdef CONFIG_FAIR_GROUP_SCHED + +extern struct task_group init_task_group; + +extern struct task_group *sched_create_group(void); +extern void sched_destroy_group(struct task_group *tg); +extern void sched_move_task(struct task_struct *tsk); +extern int sched_group_set_shares(struct task_group *tg, unsigned long shares); +extern unsigned long sched_group_shares(struct task_group *tg); + +#endif + #ifdef CONFIG_TASK_XACCT static inline void add_rchar(struct task_struct *tsk, ssize_t amt) { |