NFSV4ACE_ADDSUBDIRECTORY
if (mask & NFSV4ACE_ADDSUBDIRECTORY) {
mask &= ~NFSV4ACE_ADDSUBDIRECTORY;
acemask |= NFSV4ACE_ADDSUBDIRECTORY;
NFSV4ACE_ADDSUBDIRECTORY | NFSV4ACE_DELETECHILD)