NFS serving off NTFS panic

[Dmitri Nikulin]

Matthew Dillon wrote:

   Well, I'm not sure what you mean by the 'direct IO style'.  The
   NFS server side operates as a mostly generic layer on top of 
   whatever filesystem is being exported.  The issues are related
   more to secondary filesystems like NTFS not being properly
   implemented (and that's the story with VFS in general).  Eventually
   we will be able to run these secondary filesystems in userland
   to make the system less vulnerable to panics, but for now we are
   stuck with kernel implementations.

 

I mean that, if it works fine locally but not as an NFS export, 
something is being overcomplicated; maybe for a good reason but this is 
still a problem overall.  A userland NFS would fix this, or a 
sufficiently simple kernel NFS (too late now).

Is it DragonFly's goal to move anything sensible into the userland where 
possible? I've seen this mind share among a few of the other developers. 
It makes a lot of sense for serving tasks like NFS, but I've had 
mentioned that it should also handle some low-overhead tasks the kernel 
has to do even for devices (moused, for instance). Where is the line drawn?

Dmitri Nikulin