Hello, above the implementation of the function remap_page_range() is this comment: "Note: this is only safe if the mm semaphore is held when called." Is this obsolete, because I can't find such mm semaphore? /FAU -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/