freezer: fix PF_NOFREEZE vs freezeable race

[cascardo/linux.git] / include / asm-s390 / kdebug.h

diff --git a/include/asm-s390/kdebug.h b/include/asm-s390/kdebug.h
index 1b50f89..04418af 100644 (file)
--- a/include/asm-s390/kdebug.h
+++ b/include/asm-s390/kdebug.h
@@ -8,23 +8,19 @@
 
 struct pt_regs;
 
-struct die_args {
-       struct pt_regs *regs;
-       const char *str;
-       long err;
-       int trapnr;
-       int signr;
-};
-
-/* 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.
+/*
+ * These are only here because kprobes.c wants them to implement a
+ * blatant layering violation. Will hopefully go away soon once all
+ * architectures are updated.
  */
-extern int register_die_notifier(struct notifier_block *);
-extern int unregister_die_notifier(struct notifier_block *);
-extern int register_page_fault_notifier(struct notifier_block *);
-extern int unregister_page_fault_notifier(struct notifier_block *);
-extern struct atomic_notifier_head s390die_chain;
+static inline int register_page_fault_notifier(struct notifier_block *nb)
+{
+       return 0;
+}
+static inline int unregister_page_fault_notifier(struct notifier_block *nb)
+{
+       return 0;
+}
 
 enum die_val {
        DIE_OOPS = 1,
@@ -39,22 +35,8 @@ enum die_val {
        DIE_GPF,
        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)
-{
-       struct die_args args = {
-               .regs = regs,
-               .str = str,
-               .err = err,
-               .trapnr = trap,
-               .signr = sig
-       };
-       return atomic_notifier_call_chain(&s390die_chain, val, &args);
-}
-
 extern void die(const char *, struct pt_regs *, long);
 
 #endif