cacl
struct l9p_acl *cacl, struct stat *cst,
args.aca_child = cacl;
args.aca_aclmode = pacl == NULL && cacl == NULL
error = cacl(cmd, nentries, aclbufp, fp->f_vnode, &rv);
static int cacl(int cmd, int nentries, void *aclbufp,
error = cacl(cmd, nentries, aclbufp, vp, &rv);