NFSv4.1: Don't do a delegated open for NFS4_OPEN_CLAIM_DELEG_CUR_FH modes

If we're in a delegation recall situation, we can't do a delegated open.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/nfs4proc.c

@@ -1543,6 +1543,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
 		rcu_read_lock();
 		delegation = rcu_dereference(NFS_I(data->state->inode)->delegation);
 		if (data->o_arg.claim != NFS4_OPEN_CLAIM_DELEGATE_CUR &&
+		    data->o_arg.claim != NFS4_OPEN_CLAIM_DELEG_CUR_FH &&
 		    can_open_delegated(delegation, data->o_arg.fmode))
 			goto unlock_no_action;
 		rcu_read_unlock();