reboot_cpu 39 include/linux/reboot.h extern int reboot_cpu; reboot_cpu 45 kernel/reboot.c int reboot_cpu; reboot_cpu 221 kernel/reboot.c int cpu = reboot_cpu; reboot_cpu 558 kernel/reboot.c rc = kstrtoint(str+1, 0, &reboot_cpu); reboot_cpu 563 kernel/reboot.c rc = kstrtoint(str+3, 0, &reboot_cpu);