3163 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in folio_inc_gen()  local
3171 		if (new_gen >= 0 && new_gen != old_gen)  in folio_inc_gen()
3174 		new_gen = (old_gen + 1) % MAX_NR_GENS;  in folio_inc_gen()
3183 	lru_gen_update_size(lruvec, folio, old_gen, new_gen);  in folio_inc_gen()
3189 			      int old_gen, int new_gen)  in update_batch_size()  argument
3195 	VM_WARN_ON_ONCE(old_gen >= MAX_NR_GENS);  in update_batch_size()
3200 	walk->nr_pages[old_gen][type][zone] -= delta;  in update_batch_size()
3388 	int old_gen, new_gen = lru_gen_from_seq(max_seq);  in walk_pte_range()  local
3427 		old_gen = folio_update_gen(folio, new_gen);  in walk_pte_range()
3428 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pte_range()
3429 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pte_range()
3451 	int old_gen, new_gen = lru_gen_from_seq(max_seq);  in walk_pmd_range_locked()  local
3511 		old_gen = folio_update_gen(folio, new_gen);  in walk_pmd_range_locked()
3512 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pmd_range_locked()
3513 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pmd_range_locked()
3722 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in inc_min_seq()  local
3729 		struct list_head *head = &lrugen->folios[old_gen][type][zone];  in inc_min_seq()
4061 	int old_gen, new_gen = lru_gen_from_seq(max_seq);  in lru_gen_look_around()  local
4127 			old_gen = folio_update_gen(folio, new_gen);  in lru_gen_look_around()
4128 			if (old_gen >= 0 && old_gen != new_gen)  in lru_gen_look_around()
4129 				update_batch_size(walk, folio, old_gen, new_gen);  in lru_gen_look_around()
4134 		old_gen = folio_lru_gen(folio);  in lru_gen_look_around()
4135 		if (old_gen < 0)  in lru_gen_look_around()
4137 		else if (old_gen != new_gen)  in lru_gen_look_around()