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sched_request_migrate(): change CPU flags atomically

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Balazs Gerofi
2015-08-10 12:45:59 +09:00
parent f4cc82578d
commit f0ab8ec89a
1 changed files with 2 additions and 0 deletions
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2
kernel/process.c
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@ -2477,8 +2477,10 @@ void sched_request_migrate(int cpu_id, struct process *proc)
list_add_tail(&req.list, &v->migq); list_add_tail(&req.list, &v->migq);
ihk_mc_spinlock_unlock(&v->migq_lock, irqstate); ihk_mc_spinlock_unlock(&v->migq_lock, irqstate);
irqstate = ihk_mc_spinlock_lock(&v->runq_lock);
v->flags |= CPU_FLAG_NEED_RESCHED | CPU_FLAG_NEED_MIGRATE; v->flags |= CPU_FLAG_NEED_RESCHED | CPU_FLAG_NEED_MIGRATE;
v->status = CPU_STATUS_RUNNING; v->status = CPU_STATUS_RUNNING;
ihk_mc_spinlock_unlock(&v->runq_lock, irqstate);
if (cpu_id != ihk_mc_get_processor_id()) if (cpu_id != ihk_mc_get_processor_id())
ihk_mc_interrupt_cpu(/* Kick scheduler */ ihk_mc_interrupt_cpu(/* Kick scheduler */