/* SPDX-License-Identifier: GPL-2.0-only *//* *  arch/arm/include/asm/thread_notify.h * *  Copyright (C) 2006 Russell King. */#ifndef ASMARM_THREAD_NOTIFY_H#define ASMARM_THREAD_NOTIFY_H #ifdef __KERNEL__ #ifndef __ASSEMBLY__ #include <linux/notifier.h>#include <asm/thread_info.h> static inline int thread_register_notifier(struct notifier_block *n){	extern struct atomic_notifier_head thread_notify_head;	return atomic_notifier_chain_register(&thread_notify_head, n);} static inline void thread_unregister_notifier(struct notifier_block *n){	extern struct atomic_notifier_head thread_notify_head;	atomic_notifier_chain_unregister(&thread_notify_head, n);} static inline void thread_notify(unsigned long rc, struct thread_info *thread){	extern struct atomic_notifier_head thread_notify_head;	atomic_notifier_call_chain(&thread_notify_head, rc, thread);} #endif /* * These are the reason codes for the thread notifier. */#define THREAD_NOTIFY_FLUSH	0#define THREAD_NOTIFY_EXIT	1#define THREAD_NOTIFY_SWITCH	2#define THREAD_NOTIFY_COPY	3 #endif#endif