extern int srcu_notifier_call_chain(struct srcu_notifier_head *nh,
unsigned long val, void *v);
-extern int atomic_notifier_call_chain_robust(struct atomic_notifier_head *nh,
- unsigned long val_up, unsigned long val_down, void *v);
extern int blocking_notifier_call_chain_robust(struct blocking_notifier_head *nh,
unsigned long val_up, unsigned long val_down, void *v);
extern int raw_notifier_call_chain_robust(struct raw_notifier_head *nh,