pm_notifier_call_chain 215 kernel/power/power.h extern int pm_notifier_call_chain(unsigned long val); pm_notifier_call_chain 535 kernel/power/suspend.c pm_notifier_call_chain(PM_POST_SUSPEND); pm_notifier_call_chain 125 kernel/power/user.c pm_notifier_call_chain(data->mode == O_RDONLY ?