| Russell King | d6551e8 | 2006-06-21 13:31:52 +0100 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/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 | |
| 20 | static 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 | |
| 26 | static 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 | |
| 32 | static 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_RELEASE 1 |
| 45 | #define THREAD_NOTIFY_SWITCH 2 |
| 46 | |
| 47 | #endif |
| 48 | #endif |