> Marcus> The Hurd is a multiserver OS, and there is no central > Marcus> authority for mounted filesystems. What we could do is to > Marcus> write a database server where filesystems can register > Marcus> themselves if they want. > > That sound like fun. How does it work? This is the server > which df would used when invoked with no filesystem as an > argument? Is there a program which would do something similar > for some other service? What should I have read before asking > you these questions? > > Let's add an optional call in mount (is mount the right > place?) a call to > register_mount_point(host, remote_host, remote_mnt_pt, local_mnt_pt) > (or some such).
Sha. That's the thing. There is no mount syscall. Mounted filesystems are merely translators attached to the file namespace. The mount command is merely a script that ties a filesystem server to a file. If it's a script, what's to stop someone from writing a mount command that cimcumvents the step to register mounted filesystems? I suppose the idea here is to make it a "trust me, these are the mounted filesystems" mechanism, but that's hardly good enough for me. :) Also, if you were going to do it that way, I personally would prefer: echo "/dev/xxxx /usr/local" >> /etc/mounts as opposed to communicating with a PostgreSQL database. :) -MB
