sdev_self_access
if ((error = sdev_self_access(dv, VEXEC, 0, cred, ct)) != 0)
ret = sdev_self_access(dv, mode, flags, cr, ct);
if ((error = sdev_self_access(parent, VEXEC, 0, cred, ct)) != 0) {
if ((error = sdev_self_access(parent, VWRITE, 0, cred, ct)) != 0) {