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