NFS4_DR_DID_OP
if (flags & NFS4_DR_DID_OP) {
nfs4delegreturn_async(rp, (flags & ~NFS4_DR_DID_OP), FALSE);
flags &= ~NFS4_DR_DID_OP;
dr_flags = NFS4_DR_PUSH|NFS4_DR_DID_OP|NFS4_DR_REOPEN;