[pnfs] callback problem

[Marc Eshel]

Some more observation I will continue to debug.

On the client side I got the following messages after mount and 2 of them 
where incorrect. The first one "Couldn't mount...." but mount did complete 
and I was able to use it. The seconds one "started cb service!" is wrong 
callback failed since the IP address was 0.0.0.0 on the server side.

[root at fin30 ~]# mount -t nfs4 fin18:/ /mnt
Message from syslogd at fin30 at Wed May 23 11:34:03 2007 ...
fin30 kernel: started cb service!
Message from syslogd at fin30 at Wed May 23 11:34:05 2007 ...
fin30 kernel: Couldn't mount using minorversion 1
Message from syslogd at fin30 at Wed May 23 11:34:05 2007 ...
fin30 kernel: started cb service!



On the server side I had to comment list_move_tail line since it was 
crashing with a null pointer. 

static inline void
renew_client(struct nfs4_client *clp)
{
        /*
        * Move client to the end to the LRU list.
        */
        dprintk("renewing client (clientid %08x/%08x)\n",
                        clp->cl_clientid.cl_boot,
                        clp->cl_clientid.cl_id);
//???   list_move_tail(&clp->cl_lru, &client_lru);
        clp->cl_time = get_seconds();
}