bitmap_weight_from
return bitmap_weight_from(map, lvlid, end);
ret = bitmap_weight_from(NULL, 0, 0);
w2 = bitmap_weight_from(b, 15, 30);
w2 = bitmap_weight_from(exp1, bit, EXP1_IN_BITS);
w = bitmap_weight_from(b, 31, 30);
nr_occupied_ptes = bitmap_weight_from(cc->mthp_present_ptes, offset,