linux/kernel/notifier.c

21  *	Notifier chain core routines.  The exported routines below
63  *	@nl:		Pointer to head of the blocking notifier chain
110  * @nl:		Pointer to head of the blocking notifier chain
116  * NOTE:	It is important the @nl chain doesn't change between the two
136  *	Atomic notifier chain routines.  Registration and unregistration
141  *	atomic_notifier_chain_register - Add notifier to an atomic notifier chain
142  *	@nh: Pointer to head of the atomic notifier chain
143  *	@n: New entry in notifier chain
145  *	Adds a notifier to an atomic notifier chain.
163  *	atomic_notifier_chain_register_unique_prio - Add notifier to an atomic notifier chain
164  *	@nh: Pointer to head of the atomic notifier chain
165  *	@n: New entry in notifier chain
167  *	Adds a notifier to an atomic notifier chain if there is no other
186  *	atomic_notifier_chain_unregister - Remove notifier from an atomic notifier chain
187  *	@nh: Pointer to head of the atomic notifier chain
188  *	@n: Entry to remove from notifier chain
190  *	Removes a notifier from an atomic notifier chain.
209  *	atomic_notifier_call_chain - Call functions in an atomic notifier chain
210  *	@nh: Pointer to head of the atomic notifier chain
214  *	Calls each function in a notifier chain in turn.  The functions
216  *	This routine uses RCU to synchronize with changes to the chain.
240  *	atomic_notifier_call_chain_is_empty - Check whether notifier chain is empty
241  *	@nh: Pointer to head of the atomic notifier chain
243  *	Checks whether notifier chain is empty.
245  *	Returns true is notifier chain is empty, false otherwise.
253  *	Blocking notifier chain routines.  All access to the chain is
278  *	blocking_notifier_chain_register - Add notifier to a blocking notifier chain
279  *	@nh: Pointer to head of the blocking notifier chain
280  *	@n: New entry in notifier chain
282  *	Adds a notifier to a blocking notifier chain.
295  *	blocking_notifier_chain_register_unique_prio - Add notifier to a blocking notifier chain
296  *	@nh: Pointer to head of the blocking notifier chain
297  *	@n: New entry in notifier chain
299  *	Adds a notifier to an blocking notifier chain if there is no other
312  *	blocking_notifier_chain_unregister - Remove notifier from a blocking notifier chain
313  *	@nh: Pointer to head of the blocking notifier chain
314  *	@n: Entry to remove from notifier chain
316  *	Removes a notifier from a blocking notifier chain.
361  *	blocking_notifier_call_chain - Call functions in a blocking notifier chain
362  *	@nh: Pointer to head of the blocking notifier chain
366  *	Calls each function in a notifier chain in turn.  The functions
396  *	Raw notifier chain routines.  There is no protection;
401  *	raw_notifier_chain_register - Add notifier to a raw notifier chain
402  *	@nh: Pointer to head of the raw notifier chain
403  *	@n: New entry in notifier chain
405  *	Adds a notifier to a raw notifier chain.
418  *	raw_notifier_chain_unregister - Remove notifier from a raw notifier chain
419  *	@nh: Pointer to head of the raw notifier chain
420  *	@n: Entry to remove from notifier chain
422  *	Removes a notifier from a raw notifier chain.
442  *	raw_notifier_call_chain - Call functions in a raw notifier chain
443  *	@nh: Pointer to head of the raw notifier chain
447  *	Calls each function in a notifier chain in turn.  The functions
466  *	SRCU notifier chain routines.    Registration and unregistration
471  *	srcu_notifier_chain_register - Add notifier to an SRCU notifier chain
472  *	@nh: Pointer to head of the SRCU notifier chain
473  *	@n: New entry in notifier chain
475  *	Adds a notifier to an SRCU notifier chain.
501  *	srcu_notifier_chain_unregister - Remove notifier from an SRCU notifier chain
502  *	@nh: Pointer to head of the SRCU notifier chain
503  *	@n: Entry to remove from notifier chain
505  *	Removes a notifier from an SRCU notifier chain.
532  *	srcu_notifier_call_chain - Call functions in an SRCU notifier chain
533  *	@nh: Pointer to head of the SRCU notifier chain
537  *	Calls each function in a notifier chain in turn.  The functions
562  *	@nh: Pointer to head of the srcu notifier chain