I'm looking for a way to dynamically generate the contents of a directory in the /proc filesystem from a kernel module. This is definitely possible since the root /proc directory does it for each running process (and, indeed, that's actually what I want: to have one directory per PID inside of my /proc subdirectory – I'm trying to create a structure like /proc/mymodule/<tgid>/<pid>). However, the code that does this for the root /proc directory (found in fs/proc/base.c) is fairly complicated, and involves keeping an inode cache etc. Furthermore, none of the helper functions used in fs/proc/base.c are exported, so I'd have to copy & paste them into my module.
Is there any supported interface for dynamically generating the contents of a /proc directory whenever readdir is called?
