[pnfs] [PATCH 9/9] pnfs client prevent race in sequence slot

[Marc Eshel]

I am getting the NFSERR_SEQ_MISORDERED return code by just doing reads 
from two client to one DS. No "cntrl C" or any other interruption, so I 
think that we have some problem in managing the sequence number. Once you 
get this rc there is no recovery all following RPCs fail with the same 
return code.
Marc.