send_signal_work 627 kernel/trace/bpf_trace.c static DEFINE_PER_CPU(struct send_signal_irq_work, send_signal_work); send_signal_work 660 kernel/trace/bpf_trace.c work = this_cpu_ptr(&send_signal_work); send_signal_work 1464 kernel/trace/bpf_trace.c work = per_cpu_ptr(&send_signal_work, cpu);