diff options
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 77 |
1 files changed, 48 insertions, 29 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index c5d3f847ca8d..21349173d148 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -134,7 +134,6 @@ extern unsigned long nr_running(void); extern unsigned long nr_uninterruptible(void); extern unsigned long nr_active(void); extern unsigned long nr_iowait(void); -extern unsigned long weighted_cpuload(const int cpu); struct seq_file; struct cfs_rq; @@ -246,6 +245,8 @@ extern asmlinkage void schedule_tail(struct task_struct *prev); extern void init_idle(struct task_struct *idle, int cpu); extern void init_idle_bootup_task(struct task_struct *idle); +extern int runqueue_is_locked(void); + extern cpumask_t nohz_cpu_mask; #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ) extern int select_nohz_load_balancer(int cpu); @@ -784,6 +785,8 @@ struct sched_domain { unsigned int balance_interval; /* initialise to 1. units in ms. */ unsigned int nr_balance_failed; /* initialise to 0 */ + u64 last_update; + #ifdef CONFIG_SCHEDSTATS /* load_balance() stats */ unsigned int lb_count[CPU_MAX_IDLE_TYPES]; @@ -823,23 +826,6 @@ extern int arch_reinit_sched_domains(void); #endif /* CONFIG_SMP */ -/* - * A runqueue laden with a single nice 0 task scores a weighted_cpuload of - * SCHED_LOAD_SCALE. This function returns 1 if any cpu is laden with a - * task of nice 0 or enough lower priority tasks to bring up the - * weighted_cpuload - */ -static inline int above_background_load(void) -{ - unsigned long cpu; - - for_each_online_cpu(cpu) { - if (weighted_cpuload(cpu) >= SCHED_LOAD_SCALE) - return 1; - } - return 0; -} - struct io_context; /* See blkdev.h */ #define NGROUPS_SMALL 32 #define NGROUPS_PER_BLOCK ((unsigned int)(PAGE_SIZE / sizeof(gid_t))) @@ -921,8 +907,8 @@ struct sched_class { void (*set_cpus_allowed)(struct task_struct *p, const cpumask_t *newmask); - void (*join_domain)(struct rq *rq); - void (*leave_domain)(struct rq *rq); + void (*rq_online)(struct rq *rq); + void (*rq_offline)(struct rq *rq); void (*switched_from) (struct rq *this_rq, struct task_struct *task, int running); @@ -1039,6 +1025,7 @@ struct task_struct { #endif int prio, static_prio, normal_prio; + unsigned int rt_priority; const struct sched_class *sched_class; struct sched_entity se; struct sched_rt_entity rt; @@ -1122,7 +1109,6 @@ struct task_struct { int __user *set_child_tid; /* CLONE_CHILD_SETTID */ int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ - unsigned int rt_priority; cputime_t utime, stime, utimescaled, stimescaled; cputime_t gtime; cputime_t prev_utime, prev_stime; @@ -1141,12 +1127,12 @@ struct task_struct { gid_t gid,egid,sgid,fsgid; struct group_info *group_info; kernel_cap_t cap_effective, cap_inheritable, cap_permitted, cap_bset; - unsigned securebits; struct user_struct *user; + unsigned securebits; #ifdef CONFIG_KEYS + unsigned char jit_keyring; /* default keyring to attach requested keys to */ struct key *request_key_auth; /* assumed request_key authority */ struct key *thread_keyring; /* keyring private to this thread */ - unsigned char jit_keyring; /* default keyring to attach requested keys to */ #endif char comm[TASK_COMM_LEN]; /* executable name excluding path - access with [gs]et_task_comm (which lock @@ -1233,8 +1219,8 @@ struct task_struct { # define MAX_LOCK_DEPTH 48UL u64 curr_chain_key; int lockdep_depth; - struct held_lock held_locks[MAX_LOCK_DEPTH]; unsigned int lockdep_recursion; + struct held_lock held_locks[MAX_LOCK_DEPTH]; #endif /* journalling filesystem info */ @@ -1262,10 +1248,6 @@ struct task_struct { u64 acct_vm_mem1; /* accumulated virtual memory usage */ cputime_t acct_stimexpd;/* stime since last update */ #endif -#ifdef CONFIG_NUMA - struct mempolicy *mempolicy; - short il_next; -#endif #ifdef CONFIG_CPUSETS nodemask_t mems_allowed; int cpuset_mems_generation; @@ -1285,6 +1267,10 @@ struct task_struct { struct list_head pi_state_list; struct futex_pi_state *pi_state_cache; #endif +#ifdef CONFIG_NUMA + struct mempolicy *mempolicy; + short il_next; +#endif atomic_t fs_excl; /* holding fs exclusive resources */ struct rcu_head rcu; @@ -1504,6 +1490,7 @@ static inline void put_task_struct(struct task_struct *t) #define PF_SWAPWRITE 0x00800000 /* Allowed to write to swap */ #define PF_SPREAD_PAGE 0x01000000 /* Spread page cache over cpuset */ #define PF_SPREAD_SLAB 0x02000000 /* Spread some slab caches over cpuset */ +#define PF_THREAD_BOUND 0x04000000 /* Thread bound to specific cpu */ #define PF_MEMPOLICY 0x10000000 /* Non-default NUMA mempolicy */ #define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */ #define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezeable */ @@ -1573,13 +1560,28 @@ static inline void sched_clock_idle_sleep_event(void) static inline void sched_clock_idle_wakeup_event(u64 delta_ns) { } -#else + +#ifdef CONFIG_NO_HZ +static inline void sched_clock_tick_stop(int cpu) +{ +} + +static inline void sched_clock_tick_start(int cpu) +{ +} +#endif + +#else /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */ extern void sched_clock_init(void); extern u64 sched_clock_cpu(int cpu); extern void sched_clock_tick(void); extern void sched_clock_idle_sleep_event(void); extern void sched_clock_idle_wakeup_event(u64 delta_ns); +#ifdef CONFIG_NO_HZ +extern void sched_clock_tick_stop(int cpu); +extern void sched_clock_tick_start(int cpu); #endif +#endif /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */ /* * For kernel-internal use: high-speed (but slightly incorrect) per-cpu @@ -1622,6 +1624,7 @@ extern unsigned int sysctl_sched_child_runs_first; extern unsigned int sysctl_sched_features; extern unsigned int sysctl_sched_migration_cost; extern unsigned int sysctl_sched_nr_migrate; +extern unsigned int sysctl_sched_shares_ratelimit; int sched_nr_latency_handler(struct ctl_table *table, int write, struct file *file, void __user *buffer, size_t *length, @@ -1655,6 +1658,8 @@ extern int can_nice(const struct task_struct *p, const int nice); extern int task_curr(const struct task_struct *p); extern int idle_cpu(int cpu); extern int sched_setscheduler(struct task_struct *, int, struct sched_param *); +extern int sched_setscheduler_nocheck(struct task_struct *, int, + struct sched_param *); extern struct task_struct *idle_task(int cpu); extern struct task_struct *curr_task(int cpu); extern void set_curr_task(int cpu, struct task_struct *p); @@ -2131,6 +2136,18 @@ static inline void arch_pick_mmap_layout(struct mm_struct *mm) } #endif +#ifdef CONFIG_TRACING +extern void +__trace_special(void *__tr, void *__data, + unsigned long arg1, unsigned long arg2, unsigned long arg3); +#else +static inline void +__trace_special(void *__tr, void *__data, + unsigned long arg1, unsigned long arg2, unsigned long arg3) +{ +} +#endif + extern long sched_setaffinity(pid_t pid, const cpumask_t *new_mask); extern long sched_getaffinity(pid_t pid, cpumask_t *mask); @@ -2225,6 +2242,8 @@ static inline void mm_init_owner(struct mm_struct *mm, struct task_struct *p) } #endif /* CONFIG_MM_OWNER */ +#define TASK_STATE_TO_CHAR_STR "RSDTtZX" + #endif /* __KERNEL__ */ #endif |