Erik Mouw wrote: > > On Wed, Feb 05, 2003 at 01:20:25AM +0100, Jerome de Vivie wrote: > > I'm currently writting a module. I use a file from kernelspace. Instead > > of using "f_op" read/write calls, i would like to mmap this file into > > the kernel memory and use it as a contiguous space. > > Using files from kernel mode is policy, while the kernel should only > implement mechanisms. Rethink your design so the file usage is done > where it belongs: userland. This has the nice advantage that you can > get the same information from weird locations like a remote SQL > database by just rewriting the userland backend. There's no way to do > this from kernel. The module implement a stackable filesystem (which should work over NFS). I use a file because i need to store persistant data and i also need to hide this file from userland. As I need to access some data very frequently, i prefer using direct memory operation than read/write. All thoses operations are protected by a mandatory. j. -- Jérôme de Vivie -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
