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notifier: Remove atomic_notifier_call_chain_robust()

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Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Valentin Schneider 2021-08-11 21:14:32 +01:00 committed by Rafael J. Wysocki
parent b2f6662ac0
commit 15538a2057
2 changed files with 0 additions and 21 deletions
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2
include/linux/notifier.h
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@ -168,8 +168,6 @@ extern int raw_notifier_call_chain(struct raw_notifier_head *nh,
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,

19
kernel/notifier.c
View File

@ -172,25 +172,6 @@ int atomic_notifier_chain_unregister(struct atomic_notifier_head *nh,
}
EXPORT_SYMBOL_GPL(atomic_notifier_chain_unregister);
int atomic_notifier_call_chain_robust(struct atomic_notifier_head *nh,
unsigned long val_up, unsigned long val_down, void *v)
{
unsigned long flags;
int ret;
/*
* Musn't use RCU; because then the notifier list can
* change between the up and down traversal.
*/
spin_lock_irqsave(&nh->lock, flags);
ret = notifier_call_chain_robust(&nh->head, val_up, val_down, v);
spin_unlock_irqrestore(&nh->lock, flags);
return ret;
}
EXPORT_SYMBOL_GPL(atomic_notifier_call_chain_robust);
NOKPROBE_SYMBOL(atomic_notifier_call_chain_robust);
/**
* atomic_notifier_call_chain - Call functions in an atomic notifier chain
* @nh: Pointer to head of the atomic notifier chain