1 files changed, 18 insertions, 10 deletions

diff --git a/include/linux/module.h b/include/linux/module.h
index dd618eb026aa..6914fcad4673 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -175,6 +175,7 @@ struct notifier_block;
 
 #ifdef CONFIG_MODULES
 
+extern int modules_disabled; /* for sysctl */
 /* Get/put a kernel symbol (calls must be symmetric) */
 void *__symbol_get(const char *symbol);
 void *__symbol_get_gpl(const char *symbol);
@@ -329,8 +330,11 @@ struct module
         struct module_notes_attrs *notes_attrs;
 #endif
 
+#ifdef CONFIG_SMP
         /* Per-cpu data. */
-        void *percpu;
+        void __percpu *percpu;
+        unsigned int percpu_size;
+#endif
 
         /* The command line arguments (may be mangled).  People like
            keeping pointers to this stuff */
@@ -364,7 +368,8 @@ struct module
         void (*exit)(void);
 
         struct module_ref {
-                int count;
+                unsigned int incs;
+                unsigned int decs;
         } __percpu *refptr;
 #endif
 
@@ -391,6 +396,7 @@ static inline int module_is_live(struct module *mod)
 struct module *__module_text_address(unsigned long addr);
 struct module *__module_address(unsigned long addr);
 bool is_module_address(unsigned long addr);
+bool is_module_percpu_address(unsigned long addr);
 bool is_module_text_address(unsigned long addr);
 
 static inline int within_module_core(unsigned long addr, struct module *mod)
@@ -458,9 +464,8 @@ static inline void __module_get(struct module *module)
 {
         if (module) {
                 preempt_disable();
-                __this_cpu_inc(module->refptr->count);
-                trace_module_get(module, _THIS_IP_,
-                                 __this_cpu_read(module->refptr->count));
+                __this_cpu_inc(module->refptr->incs);
+                trace_module_get(module, _THIS_IP_);
                 preempt_enable();
         }
 }
@@ -473,11 +478,9 @@ static inline int try_module_get(struct module *module)
                 preempt_disable();
 
                 if (likely(module_is_live(module))) {
-                        __this_cpu_inc(module->refptr->count);
-                        trace_module_get(module, _THIS_IP_,
-                                __this_cpu_read(module->refptr->count));
-                }
-                else
+                        __this_cpu_inc(module->refptr->incs);
+                        trace_module_get(module, _THIS_IP_);
+                } else
                         ret = 0;
 
                 preempt_enable();
@@ -562,6 +565,11 @@ static inline bool is_module_address(unsigned long addr)
         return false;
 }
 
+static inline bool is_module_percpu_address(unsigned long addr)
+{
+        return false;
+}
+
 static inline bool is_module_text_address(unsigned long addr)
 {
         return false;