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Diffstat (limited to 'kernel/sched/core.c')
-rw-r--r--kernel/sched/core.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b4308d7da33..277e3557d0e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1623,6 +1623,20 @@ static void __sched_fork(struct task_struct *p)
#if defined(CONFIG_SMP) && defined(CONFIG_FAIR_GROUP_SCHED)
p->se.avg.runnable_avg_period = 0;
p->se.avg.runnable_avg_sum = 0;
+#ifdef CONFIG_SCHED_HMP
+ /* keep LOAD_AVG_MAX in sync with fair.c if load avg series is changed */
+#define LOAD_AVG_MAX 47742
+ if (p->mm) {
+ p->se.avg.hmp_last_up_migration = 0;
+ p->se.avg.hmp_last_down_migration = 0;
+ p->se.avg.load_avg_ratio = 1023;
+ p->se.avg.load_avg_contrib =
+ (1023 * scale_load_down(p->se.load.weight));
+ p->se.avg.runnable_avg_period = LOAD_AVG_MAX;
+ p->se.avg.runnable_avg_sum = LOAD_AVG_MAX;
+ p->se.avg.usage_avg_sum = LOAD_AVG_MAX;
+ }
+#endif
#endif
#ifdef CONFIG_SCHEDSTATS
memset(&p->se.statistics, 0, sizeof(p->se.statistics));
@@ -3825,6 +3839,8 @@ static struct task_struct *find_process_by_pid(pid_t pid)
return pid ? find_task_by_vpid(pid) : current;
}
+extern struct cpumask hmp_slow_cpu_mask;
+
/* Actually do priority change: must hold rq lock. */
static void
__setscheduler(struct rq *rq, struct task_struct *p, int policy, int prio)
@@ -3834,8 +3850,17 @@ __setscheduler(struct rq *rq, struct task_struct *p, int policy, int prio)
p->normal_prio = normal_prio(p);
/* we are holding p->pi_lock already */
p->prio = rt_mutex_getprio(p);
- if (rt_prio(p->prio))
+ if (rt_prio(p->prio)) {
p->sched_class = &rt_sched_class;
+#ifdef CONFIG_SCHED_HMP
+ if (!cpumask_empty(&hmp_slow_cpu_mask))
+ if (cpumask_equal(&p->cpus_allowed, cpu_all_mask)) {
+ p->nr_cpus_allowed =
+ cpumask_weight(&hmp_slow_cpu_mask);
+ do_set_cpus_allowed(p, &hmp_slow_cpu_mask);
+ }
+#endif
+ }
else
p->sched_class = &fair_sched_class;
set_load_weight(p);