1 files changed, 38 insertions, 0 deletions

diff --git a/kernel/die_notifier.c b/kernel/die_notifier.c
new file mode 100644
index 000000000000..0d98827887a7
--- /dev/null
+++ b/kernel/die_notifier.c
@@ -0,0 +1,38 @@
+
+#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);
+
+