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-rw-r--r--arch/i386/mm/fault.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index f7279468323a..0ce86168a0b1 100644
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -30,18 +30,20 @@
30 30
31extern void die(const char *,struct pt_regs *,long); 31extern void die(const char *,struct pt_regs *,long);
32 32
33#ifdef CONFIG_KPROBES 33static ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
34ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); 34
35int register_page_fault_notifier(struct notifier_block *nb) 35int register_page_fault_notifier(struct notifier_block *nb)
36{ 36{
37 vmalloc_sync_all(); 37 vmalloc_sync_all();
38 return atomic_notifier_chain_register(&notify_page_fault_chain, nb); 38 return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
39} 39}
40EXPORT_SYMBOL_GPL(register_page_fault_notifier);
40 41
41int unregister_page_fault_notifier(struct notifier_block *nb) 42int unregister_page_fault_notifier(struct notifier_block *nb)
42{ 43{
43 return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb); 44 return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
44} 45}
46EXPORT_SYMBOL_GPL(unregister_page_fault_notifier);
45 47
46static inline int notify_page_fault(enum die_val val, const char *str, 48static inline int notify_page_fault(enum die_val val, const char *str,
47 struct pt_regs *regs, long err, int trap, int sig) 49 struct pt_regs *regs, long err, int trap, int sig)
@@ -55,14 +57,6 @@ static inline int notify_page_fault(enum die_val val, const char *str,
55 }; 57 };
56 return atomic_notifier_call_chain(&notify_page_fault_chain, val, &args); 58 return atomic_notifier_call_chain(&notify_page_fault_chain, val, &args);
57} 59}
58#else
59static inline int notify_page_fault(enum die_val val, const char *str,
60 struct pt_regs *regs, long err, int trap, int sig)
61{
62 return NOTIFY_DONE;
63}
64#endif
65
66 60
67/* 61/*
68 * Unlock any spinlocks which will prevent us from getting the 62 * Unlock any spinlocks which will prevent us from getting the