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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/notifier.h
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@@ -58,7 +58,7 @@
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 };
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 struct atomic_notifier_head {
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-	spinlock_t lock;
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+	raw_spinlock_t lock;
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 	struct notifier_block __rcu *head;
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 };
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@@ -78,7 +78,7 @@
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 };
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 #define ATOMIC_INIT_NOTIFIER_HEAD(name) do {	\
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-		spin_lock_init(&(name)->lock);	\
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+		raw_spin_lock_init(&(name)->lock);	\
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 		(name)->head = NULL;		\
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 	} while (0)
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 #define BLOCKING_INIT_NOTIFIER_HEAD(name) do {	\
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@@ -95,7 +95,7 @@
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 		cleanup_srcu_struct(&(name)->srcu);
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 #define ATOMIC_NOTIFIER_INIT(name) {				\
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-		.lock = __SPIN_LOCK_UNLOCKED(name.lock),	\
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+		.lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock),	\
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 		.head = NULL }
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 #define BLOCKING_NOTIFIER_INIT(name) {				\
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 		.rwsem = __RWSEM_INITIALIZER((name).rwsem),	\
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@@ -150,10 +150,6 @@
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 extern int srcu_notifier_chain_register(struct srcu_notifier_head *nh,
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 		struct notifier_block *nb);
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-extern int blocking_notifier_chain_cond_register(
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-		struct blocking_notifier_head *nh,
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-		struct notifier_block *nb);
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-
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 extern int atomic_notifier_chain_unregister(struct atomic_notifier_head *nh,
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 		struct notifier_block *nb);
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 extern int blocking_notifier_chain_unregister(struct blocking_notifier_head *nh,
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@@ -165,20 +161,19 @@
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 extern int atomic_notifier_call_chain(struct atomic_notifier_head *nh,
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 		unsigned long val, void *v);
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-extern int __atomic_notifier_call_chain(struct atomic_notifier_head *nh,
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-	unsigned long val, void *v, int nr_to_call, int *nr_calls);
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 extern int blocking_notifier_call_chain(struct blocking_notifier_head *nh,
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 		unsigned long val, void *v);
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-extern int __blocking_notifier_call_chain(struct blocking_notifier_head *nh,
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-	unsigned long val, void *v, int nr_to_call, int *nr_calls);
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 extern int raw_notifier_call_chain(struct raw_notifier_head *nh,
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 		unsigned long val, void *v);
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-extern int __raw_notifier_call_chain(struct raw_notifier_head *nh,
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-	unsigned long val, void *v, int nr_to_call, int *nr_calls);
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 extern int srcu_notifier_call_chain(struct srcu_notifier_head *nh,
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 		unsigned long val, void *v);
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-extern int __srcu_notifier_call_chain(struct srcu_notifier_head *nh,
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-	unsigned long val, void *v, int nr_to_call, int *nr_calls);
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+
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+extern int atomic_notifier_call_chain_robust(struct atomic_notifier_head *nh,
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+		unsigned long val_up, unsigned long val_down, void *v);
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+extern int blocking_notifier_call_chain_robust(struct blocking_notifier_head *nh,
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+		unsigned long val_up, unsigned long val_down, void *v);
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+extern int raw_notifier_call_chain_robust(struct raw_notifier_head *nh,
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+		unsigned long val_up, unsigned long val_down, void *v);
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 #define NOTIFY_DONE		0x0000		/* Don't care */
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 #define NOTIFY_OK		0x0001		/* Suits me */