[pnfs] linux-pnfs-2.6-latest file layout data server sessionmanagement

[Iyer, Rahul]

Comments inline...
 

> 
> 
> Questions
> ---------
> 
> 1) should we plan for multiple sessions to a data server?
>

Why would we do multiple sessions? I can understand multiple connections
over the same session...
 
> 2) we could create a new struct to hold only exchange id and 
> client id bookeeping.
> this would mean changing the interface to 
> nfs4_proc_exchange_id, and to nfs4_state_recovery_ops. not worth it?
>
Yes and no. For the short term, in the interest of getting stuff up to
speed asap so that everyone can develop on the new client, I think using
an nfs_client struct per data server is the way to go. In the long term
however, I do believe we should use something more consise. nfs_client
has way too much unnecessary information to be used for a DS
representation.

-Rahul