child->thread.work.delayed_trace = 0;
clear_tsk_thread_flag(child, TIF_DELAYED_TRACE);
static inline void singlestep_disable(struct task_struct *child){	unsigned long tmp = get_reg(child, PT_SR) & ~(TRACE_BITS << 16);	put_reg(child, PT_SR, tmp);	child->thread.work.delayed_trace = 0;}