freeze_on_smi_mutex 4308 arch/x86/events/intel/core.c static DEFINE_MUTEX(freeze_on_smi_mutex); freeze_on_smi_mutex 4324 arch/x86/events/intel/core.c mutex_lock(&freeze_on_smi_mutex); freeze_on_smi_mutex 4335 arch/x86/events/intel/core.c mutex_unlock(&freeze_on_smi_mutex);