1 files changed, 11 insertions, 12 deletions

diff --git a/include/asm-x86_64/kdebug.h b/include/asm-x86_64/kdebug.h
index b9ed4c0c8783..cf795631d9b4 100644
--- a/include/asm-x86_64/kdebug.h
+++ b/include/asm-x86_64/kdebug.h
@@ -5,21 +5,20 @@
 
 struct pt_regs;
 
-struct die_args { 
+struct die_args {
         struct pt_regs *regs;
         const char *str;
-        long err; 
+        long err;
         int trapnr;
         int signr;
-}; 
+};
+
+extern int register_die_notifier(struct notifier_block *);
+extern int unregister_die_notifier(struct notifier_block *);
+extern struct atomic_notifier_head die_chain;
 
-/* Note - you should never unregister because that can race with NMIs.
-   If you really want to do it first unregister - then synchronize_sched - then free.
-  */
-int register_die_notifier(struct notifier_block *nb);
-extern struct notifier_block *die_chain;
 /* Grossly misnamed. */
-enum die_val { 
+enum die_val {
         DIE_OOPS = 1,
         DIE_INT3,
         DIE_DEBUG,
@@ -33,8 +32,8 @@ enum die_val {
         DIE_CALL,
         DIE_NMI_IPI,
         DIE_PAGE_FAULT,
-}; 
-        
+};
+
 static inline int notify_die(enum die_val val, const char *str,
                         struct pt_regs *regs, long err, int trap, int sig)
 {
@@ -45,7 +44,7 @@ static inline int notify_die(enum die_val val, const char *str,
                 .trapnr = trap,
                 .signr = sig
         };
-        return notifier_call_chain(&die_chain, val, &args); 
+        return atomic_notifier_call_chain(&die_chain, val, &args);
 } 
 
 extern int printk_address(unsigned long address);