#include <linux/module.h> #include <linux/notifier.h> #include <linux/vmalloc.h> #include <linux/kdebug.h> static ATOMIC_NOTIFIER_HEAD(die_chain); int notify_die(enum die_val val, const char *str, struct pt_regs *regs, long err, int trap, int sig) { struct die_args args = { .regs = regs, .str = str, .err = err, .trapnr = trap, .signr = sig, }; return atomic_notifier_call_chain(&die_chain, val, &args); } int register_die_notifier(struct notifier_block *nb) { vmalloc_sync_all(); return atomic_notifier_chain_register(&die_chain, nb); } EXPORT_SYMBOL_GPL(register_die_notifier); int unregister_die_notifier(struct notifier_block *nb) { return atomic_notifier_chain_unregister(&die_chain, nb); } EXPORT_SYMBOL_GPL(unregister_die_notifier);