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include/asm-arm/thread_notify.h 1.18 KB
d6551e884   Russell King   [ARM] Add thread_...
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  /*
   *  linux/include/asm-arm/thread_notify.h
   *
   *  Copyright (C) 2006 Russell King.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  #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_RELEASE	1
  #define THREAD_NOTIFY_SWITCH	2
  
  #endif
  #endif