safe_smp_processor_id 171 arch/x86/include/asm/smp.h extern int safe_smp_processor_id(void); safe_smp_processor_id 171 arch/x86/kernel/crash.c crash_save_cpu(regs, safe_smp_processor_id()); safe_smp_processor_id 852 arch/x86/kernel/reboot.c crashing_cpu = safe_smp_processor_id(); safe_smp_processor_id 172 arch/x86/kernel/smp.c if (atomic_cmpxchg(&stopping_cpu, -1, safe_smp_processor_id()) != -1)