Hello, it is well known that a file descritor can be passed from a process to another. Is it possible to modify the kernel to allow the same thing to be done with memory maps? If it would be possible to do it, i would like to try to implement it myself, so do you have any hint (where i should start, what i should learn)? It could be useful in the following case: suppose a server running as root opens /dev/mem and would like to allow a client to access a small portion of /dev/mem. It cannot pass to the client the whole file descriptor to /dev/mem! Thanx Maurizio -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
