DDSF_NO_RESYNC
err = drbd_bm_resize(device, size, !(flags & DDSF_NO_RESYNC));
ddsf = (rs.resize_force ? DDSF_FORCED : 0) | (rs.no_resync ? DDSF_NO_RESYNC : 0);
if (ddsf & DDSF_NO_RESYNC)