diff options
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index a1707583de49..3d95c480f58d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -194,6 +194,14 @@ extern void sched_init_smp(void); extern void init_idle(struct task_struct *idle, int cpu); extern cpumask_t nohz_cpu_mask; +#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ) +extern int select_nohz_load_balancer(int cpu); +#else +static inline int select_nohz_load_balancer(int cpu) +{ + return 0; +} +#endif /* * Only dump TASK_* tasks. (0 for all tasks) @@ -226,6 +234,7 @@ extern void scheduler_tick(void); extern void softlockup_tick(void); extern void spawn_softlockup_task(void); extern void touch_softlockup_watchdog(void); +extern void touch_all_softlockup_watchdogs(void); #else static inline void softlockup_tick(void) { @@ -236,6 +245,9 @@ static inline void spawn_softlockup_task(void) static inline void touch_softlockup_watchdog(void) { } +static inline void touch_all_softlockup_watchdogs(void) +{ +} #endif @@ -668,8 +680,14 @@ struct sched_group { /* * CPU power of this group, SCHED_LOAD_SCALE being max power for a * single CPU. This is read only (except for setup, hotplug CPU). + * Note : Never change cpu_power without recompute its reciprocal + */ + unsigned int __cpu_power; + /* + * reciprocal value of cpu_power to avoid expensive divides + * (see include/linux/reciprocal_div.h) */ - unsigned long cpu_power; + u32 reciprocal_cpu_power; }; struct sched_domain { @@ -801,8 +819,8 @@ struct task_struct { volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */ struct thread_info *thread_info; atomic_t usage; - unsigned long flags; /* per process flags, defined below */ - unsigned long ptrace; + unsigned int flags; /* per process flags, defined below */ + unsigned int ptrace; int lock_depth; /* BKL lock depth */ @@ -825,7 +843,7 @@ struct task_struct { unsigned long long sched_time; /* sched_clock time spent running */ enum sleep_type sleep_type; - unsigned long policy; + unsigned int policy; cpumask_t cpus_allowed; unsigned int time_slice, first_time_slice; @@ -845,11 +863,11 @@ struct task_struct { /* task state */ struct linux_binfmt *binfmt; - long exit_state; + int exit_state; int exit_code, exit_signal; int pdeath_signal; /* The signal sent when the parent dies */ /* ??? */ - unsigned long personality; + unsigned int personality; unsigned did_exec:1; pid_t pid; pid_t tgid; @@ -881,7 +899,7 @@ struct task_struct { int __user *set_child_tid; /* CLONE_CHILD_SETTID */ int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ - unsigned long rt_priority; + unsigned int rt_priority; cputime_t utime, stime; unsigned long nvcsw, nivcsw; /* context switch counts */ struct timespec start_time; @@ -1641,10 +1659,7 @@ static inline void arch_pick_mmap_layout(struct mm_struct *mm) extern long sched_setaffinity(pid_t pid, cpumask_t new_mask); extern long sched_getaffinity(pid_t pid, cpumask_t *mask); -#include <linux/sysdev.h> extern int sched_mc_power_savings, sched_smt_power_savings; -extern struct sysdev_attribute attr_sched_mc_power_savings, attr_sched_smt_power_savings; -extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls); extern void normalize_rt_tasks(void); |