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| 2 | |
| 3 | * arch/arm/include/asm/thread_notify.h
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| 4 | *
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| 5 | * Copyright (C) 2006 Russell King.
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| 6 |
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| 7 | #ifndef ASMARM_THREAD_NOTIFY_H
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| 8 | #define ASMARM_THREAD_NOTIFY_H
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| 9 |
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| 10 | #ifdef __KERNEL__
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| 11 |
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| 12 | #ifndef __ASSEMBLY__
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| 13 |
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| 14 | #include <linux/notifier.h>
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| 15 | #include <asm/thread_info.h>
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| 16 |
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| 17 | static inline int thread_register_notifier(struct notifier_block *n)
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| 18 | {
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| 19 | extern struct atomic_notifier_head thread_notify_head;
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| 20 | return atomic_notifier_chain_register(&thread_notify_head, n);
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| 21 | }
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| 22 |
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| 23 | static inline void thread_unregister_notifier(struct notifier_block *n)
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| 24 | {
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| 25 | extern struct atomic_notifier_head thread_notify_head;
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| 26 | atomic_notifier_chain_unregister(&thread_notify_head, n);
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| 27 | }
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| 28 |
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| 29 | static inline void thread_notify(unsigned long rc, struct thread_info *thread)
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| 30 | {
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| 31 | extern struct atomic_notifier_head thread_notify_head;
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| 32 | atomic_notifier_call_chain(&thread_notify_head, rc, thread);
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| 33 | }
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| 34 |
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| 35 | #endif
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| 36 |
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| 37 | |
| 38 | * These are the reason codes for the thread notifier.
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| 39 |
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| 40 | #define THREAD_NOTIFY_FLUSH 0
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| 41 | #define THREAD_NOTIFY_EXIT 1
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| 42 | #define THREAD_NOTIFY_SWITCH 2
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| 43 | #define THREAD_NOTIFY_COPY 3
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| 44 |
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| 45 | #endif
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| 46 | #endif
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