参照元†
- struct cpu_workqueue_struct *cwq
- int cpu
返り値†
static int create_workqueue_thread(struct cpu_workqueue_struct *cwq, int cpu)
{
struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
struct workqueue_struct *wq = cwq->wq;
const char *fmt = is_wq_single_threaded(wq) ? "%s" : "%s/%d";
struct task_struct *p;
p = kthread_create(worker_thread, cwq, fmt, wq->name, cpu);
/*
* Nobody can add the work_struct to this cwq,
* if (caller is __create_workqueue)
* nobody should see this wq
* else // caller is CPU_UP_PREPARE
* cpu is not on cpu_online_map
* so we can abort safely.
*/
if (IS_ERR(p))
return PTR_ERR(p);
if (cwq->wq->rt)
sched_setscheduler_nocheck(p, SCHED_FIFO, ¶m);
cwq->thread = p;
trace_workqueue_creation(cwq->thread, cpu);
return 0;
}
コメント†
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