What is the meaning of the comment above forget_pte? It's a void function, so there's no value returned. Is this obsoleted documentation? It doesn't seem like it could be talking about the "return" value from pte_none. /* * Return indicates whether a page was freed so caller can adjust rss */ static inline void forget_pte(pte_t page) { if (!pte_none(page)) { printk("forget_pte: old mapping existed!\n"); BUG(); } } -- --Ed L Cashin | PGP public key: ecashin@uga.edu | http://noserose.net/e/pgp/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/