GRAB_INT
GRAB_INT("pe_start", v, tok, pv->pv_start);
GRAB_INT("pe_count", v, tok, pv->pv_count);
GRAB_INT("segment_count", v, tok, lv->lv_sgcount);
GRAB_INT("stripe_count", v, tok, count);
GRAB_INT("start_extent", v, tok, sg->sg_start);
GRAB_INT("extent_count", v, tok, sg->sg_count);
GRAB_INT("extent_size", v, tok, vg->vg_extentsize);