3787 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in folio_inc_gen()  local
3795 		if (new_gen >= 0 && new_gen != old_gen)  in folio_inc_gen()
3798 		new_gen = (old_gen + 1) % MAX_NR_GENS;  in folio_inc_gen()
3807 	lru_gen_update_size(lruvec, folio, old_gen, new_gen);  in folio_inc_gen()
3813 			      int old_gen, int new_gen)  in update_batch_size()  argument
3819 	VM_WARN_ON_ONCE(old_gen >= MAX_NR_GENS);  in update_batch_size()
3824 	walk->nr_pages[old_gen][type][zone] -= delta;  in update_batch_size()
4002 	int old_gen, new_gen = lru_gen_from_seq(walk->max_seq);  in walk_pte_range()  local
4046 		old_gen = folio_update_gen(folio, new_gen);  in walk_pte_range()
4047 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pte_range()
4048 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pte_range()
4070 	int old_gen, new_gen = lru_gen_from_seq(walk->max_seq);  in walk_pmd_range_locked()  local
4126 		old_gen = folio_update_gen(folio, new_gen);  in walk_pmd_range_locked()
4127 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pmd_range_locked()
4128 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pmd_range_locked()
4351 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in inc_min_seq()  local
4358 		struct list_head *head = &lrugen->folios[old_gen][type][zone];  in inc_min_seq()
4674 	int old_gen, new_gen = lru_gen_from_seq(max_seq);  in lru_gen_look_around()  local
4737 			old_gen = folio_update_gen(folio, new_gen);  in lru_gen_look_around()
4738 			if (old_gen >= 0 && old_gen != new_gen)  in lru_gen_look_around()
4739 				update_batch_size(walk, folio, old_gen, new_gen);  in lru_gen_look_around()
4744 		old_gen = folio_lru_gen(folio);  in lru_gen_look_around()
4745 		if (old_gen < 0)  in lru_gen_look_around()
4747 		else if (old_gen != new_gen)  in lru_gen_look_around()