nfserr_opnotsupp 1010 fs/nfsd/nfs4xdr.c return nfserr_opnotsupp; nfserr_opnotsupp 529 fs/nfsd/nfsfh.c return nfserr_opnotsupp; nfserr_opnotsupp 559 fs/nfsd/nfsfh.c return nfserr_opnotsupp;