1 /* 2 * arch/arm/include/asm/thread_notify.h 3 * 4 * Copyright (C) 2006 Russell King. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 #ifndef ASMARM_THREAD_NOTIFY_H 11 #define ASMARM_THREAD_NOTIFY_H 12 13 #ifdef __KERNEL__ 14 15 #ifndef __ASSEMBLY__ 16 17 #include <linux/notifier.h> 18 #include <asm/thread_info.h> 19 thread_register_notifier(struct notifier_block * n)20static inline int thread_register_notifier(struct notifier_block *n) 21 { 22 extern struct atomic_notifier_head thread_notify_head; 23 return atomic_notifier_chain_register(&thread_notify_head, n); 24 } 25 thread_unregister_notifier(struct notifier_block * n)26static inline void thread_unregister_notifier(struct notifier_block *n) 27 { 28 extern struct atomic_notifier_head thread_notify_head; 29 atomic_notifier_chain_unregister(&thread_notify_head, n); 30 } 31 thread_notify(unsigned long rc,struct thread_info * thread)32static inline void thread_notify(unsigned long rc, struct thread_info *thread) 33 { 34 extern struct atomic_notifier_head thread_notify_head; 35 atomic_notifier_call_chain(&thread_notify_head, rc, thread); 36 } 37 38 #endif 39 40 /* 41 * These are the reason codes for the thread notifier. 42 */ 43 #define THREAD_NOTIFY_FLUSH 0 44 #define THREAD_NOTIFY_EXIT 1 45 #define THREAD_NOTIFY_SWITCH 2 46 #define THREAD_NOTIFY_COPY 3 47 48 #endif 49 #endif 50