Although function *kmap()* and *page_address()* both are related to kernel permanent high memory mapping, the former is categoried into architecture-dependent code whileas the latter is categoried into architecture-independent code. Why is such an code organization? Is it for any technical retionality, or purely because of some historical code organization? -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/