Idea about 'skeleton jail

[Chris Hodgins]

Anish Mistry wrote:
> On Sunday 13 March 2005 01:23 pm, Chris Hodgins wrote:
> 
>>Samuel J. Greear wrote:
>>
>>>Not a bad 'idea' at all, although I won't comment on semantics. 
>>>I had something implemented using fs stacking (in a very hackish
>>>way, and I believe it's lost now, so don't ask to see it...) to
>>>implement per-jail quota's that seemed to work quite well.
>>>
>>>Sam
>>
>>Feel free to comment on the semantics.  As I said before, I am not
>>very knowledgable about filesystems and any insight or alternative
>>implementation you can provide would be interesting I'm sure to
>>everyone.
>>
> 
> Yeah, if there was jailfs that was setup automatically for the jails 
> that supported quotas out of the box that would kill my major gripe 
> about setting up jails.
> 

Any ideas the sort of work involved in something like this?  I am 
graduating soon and about to have about a month of free time to spend on 
a project.

 From the very little I know about file systems on Unix they just stack 
together right?  So there would have to be something to process the 
configuration file and then is it just a matter of overriding each vnode 
operation or is there more to it than that?

Chris