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[net-next-2.6.git] / kernel / die_notifier.c
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1
2#include <linux/module.h>
3#include <linux/notifier.h>
4#include <linux/vmalloc.h>
5#include <linux/kdebug.h>
6
7
8static ATOMIC_NOTIFIER_HEAD(die_chain);
9
10int notify_die(enum die_val val, const char *str,
11 struct pt_regs *regs, long err, int trap, int sig)
12{
13 struct die_args args = {
14 .regs = regs,
15 .str = str,
16 .err = err,
17 .trapnr = trap,
18 .signr = sig,
19
20 };
21
22 return atomic_notifier_call_chain(&die_chain, val, &args);
23}
24
25int register_die_notifier(struct notifier_block *nb)
26{
27 vmalloc_sync_all();
28 return atomic_notifier_chain_register(&die_chain, nb);
29}
30EXPORT_SYMBOL_GPL(register_die_notifier);
31
32int unregister_die_notifier(struct notifier_block *nb)
33{
34 return atomic_notifier_chain_unregister(&die_chain, nb);
35}
36EXPORT_SYMBOL_GPL(unregister_die_notifier);
37
38