Fix race between rmmod and cat /proc/kallsyms

[linux-2.6-block.git] / include / linux / module.h

diff --git a/include/linux/module.h b/include/linux/module.h
index 7999302166268bcd4f9a4af3ff42a82eaa960a5d..58d5a10cdf0d24a84543a373b33b9eb54dd3280f 100644 (file)
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -370,16 +370,14 @@ struct module *module_text_address(unsigned long addr);
 struct module *__module_text_address(unsigned long addr);
 int is_module_address(unsigned long addr);
 
-/* Returns module and fills in value, defined and namebuf, or NULL if
+/* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
    symnum out of range. */
-struct module *module_get_kallsym(unsigned int symnum, unsigned long *value,
-                               char *type, char *name);
+int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
+                       char *name, char *module_name, int *exported);
 
 /* Look for this name: can be of form module:name. */
 unsigned long module_kallsyms_lookup_name(const char *name);
 
-int is_exported(const char *name, const struct module *mod);
-
 extern void __module_put_and_exit(struct module *mod, long code)
        __attribute__((noreturn));
 #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code);
@@ -527,11 +525,11 @@ static inline const char *module_address_lookup(unsigned long addr,
        return NULL;
 }
 
-static inline struct module *module_get_kallsym(unsigned int symnum,
-                                               unsigned long *value,
-                                               char *type, char *name)
+static inline int module_get_kallsym(unsigned int symnum, unsigned long *value,
+                                       char *type, char *name,
+                                       char *module_name, int *exported)
 {
-       return NULL;
+       return -ERANGE;
 }
 
 static inline unsigned long module_kallsyms_lookup_name(const char *name)
@@ -539,11 +537,6 @@ static inline unsigned long module_kallsyms_lookup_name(const char *name)
        return 0;
 }
 
-static inline int is_exported(const char *name, const struct module *mod)
-{
-       return 0;
-}
-
 static inline int register_module_notifier(struct notifier_block * nb)
 {
        /* no events will happen anyway, so this can always succeed */