resources: introduce generic page_is_ram()

[net-next-2.6.git] / include / linux / ioport.h

diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 83aa81297ea35c693e15b14b54bf2690d9af9648..11ef7952b63aa566666f6a974eddc541203dbcf3 100644 (file)
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -188,5 +188,7 @@ extern int
 walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages,
                void *arg, int (*func)(unsigned long, unsigned long, void *));
 
+extern int page_is_ram(unsigned long pfn);
+
 #endif /* __ASSEMBLY__ */
 #endif /* _LINUX_IOPORT_H */