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Revert "sched: Fix task priority bug"

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This reverts commit 18ed2ed460.
This commit is contained in:
黄涛 2011-07-30 23:10:01 +08:00
parent abd13b690f
commit 31a4e0d240
1 changed files with 6 additions and 0 deletions
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6
kernel/sched.c
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@ -3164,6 +3164,10 @@ static void pull_task(struct rq *src_rq, struct task_struct *p,
deactivate_task(src_rq, p, 0);
set_task_cpu(p, this_cpu);
activate_task(this_rq, p, 0);
/*
* Note that idle threads have a prio of MAX_PRIO, for this test
* to be always true for them.
*/
check_preempt_curr(this_rq, p, 0);
}
@ -6958,6 +6962,7 @@ void __cpuinit init_idle(struct task_struct *idle, int cpu)
__sched_fork(idle);
idle->se.exec_start = sched_clock();
idle->prio = idle->normal_prio = MAX_PRIO;
cpumask_copy(&idle->cpus_allowed, cpumask_of(cpu));
__set_task_cpu(idle, cpu);
@ -7661,6 +7666,7 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
spin_lock_irq(&rq->lock);
update_rq_clock(rq);
deactivate_task(rq, rq->idle, 0);
rq->idle->static_prio = MAX_PRIO;
__setscheduler(rq, rq->idle, SCHED_NORMAL, 0);
rq->idle->sched_class = &idle_sched_class;
migrate_dead_tasks(cpu);