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d6551e88 RK |
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 |