2 files changed, 17 insertions, 1 deletions

diff --git a/include/linux/module.h b/include/linux/module.h
index 5e869ffd34aa..8bd399a00343 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -330,8 +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 */
@@ -392,6 +395,7 @@ 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)
@@ -563,6 +567,11 @@ 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;
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index c7845130bfdf..d3a38d687104 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -135,6 +135,7 @@ extern int __init pcpu_page_first_chunk(size_t reserved_size,
 #define per_cpu_ptr(ptr, cpu)   SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu)))
 
 extern void __percpu *__alloc_reserved_percpu(size_t size, size_t align);
+extern bool is_kernel_percpu_address(unsigned long addr);
 
 #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
 extern void __init setup_per_cpu_areas(void);
@@ -144,6 +145,12 @@ extern void __init setup_per_cpu_areas(void);
 
 #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); })
 
+/* can't distinguish from other static vars, always false */
+static inline bool is_kernel_percpu_address(unsigned long addr)
+{
+        return false;
+}
+
 static inline void __init setup_per_cpu_areas(void) { }
 
 static inline void *pcpu_lpage_remapped(void *kaddr)