Hi, The structures inode and super_block contain a union called 'u' for keeping FS specific data. This basically means that if I develop a file system which is not part of the official kernel than the users of my FS must recompile the kernel if they want to use it. Is there a workaround? TIA -- Etay Meiri cl1@netvision.net.il -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/