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-rw-r--r--include/linux/sched.h37
1 files changed, 27 insertions, 10 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a419b65770d6..8222ae40ecb0 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -125,7 +125,6 @@ struct sched_attr {
u64 sched_period;
};
-struct exec_domain;
struct futex_pi_state;
struct robust_list_head;
struct bio_list;
@@ -176,6 +175,14 @@ extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
extern void calc_global_load(unsigned long ticks);
extern void update_cpu_load_nohz(void);
+/* Notifier for when a task gets migrated to a new CPU */
+struct task_migration_notifier {
+ struct task_struct *task;
+ int from_cpu;
+ int to_cpu;
+};
+extern void register_task_migration_notifier(struct notifier_block *n);
+
extern unsigned long get_parent_ip(unsigned long addr);
extern void dump_cpu_task(int cpu);
@@ -329,6 +336,8 @@ 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 cpumask_var_t cpu_isolated_map;
+
extern int runqueue_is_locked(int cpu);
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
@@ -1115,15 +1124,28 @@ struct load_weight {
};
struct sched_avg {
+ u64 last_runnable_update;
+ s64 decay_count;
+ /*
+ * utilization_avg_contrib describes the amount of time that a
+ * sched_entity is running on a CPU. It is based on running_avg_sum
+ * and is scaled in the range [0..SCHED_LOAD_SCALE].
+ * load_avg_contrib described the amount of time that a sched_entity
+ * is runnable on a rq. It is based on both runnable_avg_sum and the
+ * weight of the task.
+ */
+ unsigned long load_avg_contrib, utilization_avg_contrib;
/*
* These sums represent an infinite geometric series and so are bound
* above by 1024/(1-y). Thus we only need a u32 to store them for all
* choices of y < 1-2^(-32)*1024.
+ * running_avg_sum reflects the time that the sched_entity is
+ * effectively running on the CPU.
+ * runnable_avg_sum represents the amount of time a sched_entity is on
+ * a runqueue which includes the running time that is monitored by
+ * running_avg_sum.
*/
- u32 runnable_avg_sum, runnable_avg_period;
- u64 last_runnable_update;
- s64 decay_count;
- unsigned long load_avg_contrib;
+ u32 runnable_avg_sum, avg_period, running_avg_sum;
};
#ifdef CONFIG_SCHEDSTATS
@@ -2288,11 +2310,6 @@ extern void set_curr_task(int cpu, struct task_struct *p);
void yield(void);
-/*
- * The default (Linux) execution domain.
- */
-extern struct exec_domain default_exec_domain;
-
union thread_union {
struct thread_info thread_info;
unsigned long stack[THREAD_SIZE/sizeof(long)];