linuxkernel唤醒进程的步骤：selecttaskrq，enqueue，activetask。对于enqueue调用链是：try_to_wake_up->ttwu_queue->ttwu_queue_wakeliststaticboolttwu_queue_wakelist(structtask_struct*p,intcpu,intwake_flags){if(sched_feat(TTWU_QUEUE)&&ttwu_