nfsd_readdirargs
struct nfsd_readdirargs *argp = rqstp->rq_argp;
.pc_argsize = sizeof(struct nfsd_readdirargs),
.pc_argzero = sizeof(struct nfsd_readdirargs),
struct nfsd_readdirargs *args = rqstp->rq_argp;
struct nfsd_readdirargs readdir;