Branch HEAD

b=9829
r=adilger

Description: client incorrectly hits assertion in ptlrpc_replay_req()
Details    : for a short time RPCs with bulk IO are in the replay list,
       but replay of bulk IOs is unimplemented.  If the OST filesystem
       is corrupted due to disk cache incoherency and then replay is
       started it is possible to trip an assertion.  Avoid putting
       committed RPCs into the replay list at all to avoid this issue.