percpu, module: implement and use is_kernel/module_percpu_address()

[safe/jmp/linux-2.6] / include / linux / percpu.h

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index a93e5bf..11d5f83 100644 (file)
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -137,6 +137,7 @@ extern int __init pcpu_page_first_chunk(size_t reserved_size,
 extern void __percpu *__alloc_reserved_percpu(size_t size, size_t align);
 extern void __percpu *__alloc_percpu(size_t size, size_t align);
 extern void free_percpu(void __percpu *__pdata);
+extern bool is_kernel_percpu_address(unsigned long addr);
 extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
 
 #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
@@ -163,6 +164,12 @@ static inline void free_percpu(void __percpu *p)
        kfree(p);
 }
 
+/* can't distinguish from other static vars, always false */
+static inline bool is_kernel_percpu_address(unsigned long addr)
+{
+       return false;
+}
+
 static inline phys_addr_t per_cpu_ptr_to_phys(void *addr)
 {
        return __pa(addr);