Question about inotify calls.

[Stef Bon <stefbon at gmail dot com>]

Hi,

I'm working on several FUSE filesystems, and looking for how to make
inotify work on FUSE filesystems, and network
fs's like cifs and nfs.

I've tried a lot till I found out a wrapper for the inotify calls are
the way to do it.

To explain:

inotify (and successors like fanotify) are onlt working for local
filesystems where the VFS is the only "user". This is the case
with a harddrive, and not with a FUSE filesystem or networkfilesystem.
I've been thinking that making inotify work for these
"outside of VFS filesystems" lies in the kernel. But then I came to
the idea that a wrapper does the job.

If the wrapper detects the target fs support native inotify, the
normal syscall is done, like inotify_init, inotify_add_watch, rm-watch
etc.

If the target fs is FUSE or a networkfs, it has to connect to that fs
via a socket in userspace.

Is this possible, I'm want to know what you think.

Stef Bon
Voorburg
the Netherlands