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2e82669acf
This patch adds THREAD_NOTIFY_COPY for calling registered handlers during the copy_thread() function call. It also changes the VFP handler to use a switch statement rather than if..else and ignore this event. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/*
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* arch/arm/include/asm/thread_notify.h
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*
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* Copyright (C) 2006 Russell King.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef ASMARM_THREAD_NOTIFY_H
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#define ASMARM_THREAD_NOTIFY_H
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#include <linux/notifier.h>
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#include <asm/thread_info.h>
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static inline int thread_register_notifier(struct notifier_block *n)
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{
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extern struct atomic_notifier_head thread_notify_head;
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return atomic_notifier_chain_register(&thread_notify_head, n);
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}
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static inline void thread_unregister_notifier(struct notifier_block *n)
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{
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extern struct atomic_notifier_head thread_notify_head;
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atomic_notifier_chain_unregister(&thread_notify_head, n);
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}
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static inline void thread_notify(unsigned long rc, struct thread_info *thread)
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{
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extern struct atomic_notifier_head thread_notify_head;
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atomic_notifier_call_chain(&thread_notify_head, rc, thread);
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}
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#endif
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/*
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* These are the reason codes for the thread notifier.
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*/
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#define THREAD_NOTIFY_FLUSH 0
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#define THREAD_NOTIFY_EXIT 1
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#define THREAD_NOTIFY_SWITCH 2
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#define THREAD_NOTIFY_COPY 3
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#endif
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#endif
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