__be32
nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
	     struct nfsd_attrs *attr,
	     int check_guard, time64_t guardtime)
__be32
nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
	     struct nfsd_attrs *attr, const struct timespec64 *guardtime)