SF_NOHISTORY
#ifdef SF_NOHISTORY
{ "noshistory", SF_NOHISTORY, 1 },
(SF_NOHISTORY|UF_NOHISTORY|UF_NODUMP);
if (ip->ino_data.uflags & (SF_NOHISTORY|UF_NOHISTORY))
ip->i_flags = pdir->i_flags & (SF_NOHISTORY|UF_NOHISTORY|UF_NODUMP);