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Diffstat (limited to 'include/asm-arm/thread_notify.h')
| -rw-r--r-- | include/asm-arm/thread_notify.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/asm-arm/thread_notify.h b/include/asm-arm/thread_notify.h new file mode 100644 index 00000000000..8866e521684 --- /dev/null +++ b/include/asm-arm/thread_notify.h @@ -0,0 +1,48 @@ +/* + * 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 |