3800 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in folio_inc_gen()  local
3808 		if (new_gen >= 0 && new_gen != old_gen)  in folio_inc_gen()
3811 		new_gen = (old_gen + 1) % MAX_NR_GENS;  in folio_inc_gen()
3820 	lru_gen_update_size(lruvec, folio, old_gen, new_gen);  in folio_inc_gen()
3826 			      int old_gen, int new_gen)  in update_batch_size()  argument
3832 	VM_WARN_ON_ONCE(old_gen >= MAX_NR_GENS);  in update_batch_size()
3837 	walk->nr_pages[old_gen][type][zone] -= delta;  in update_batch_size()
4015 	int old_gen, new_gen = lru_gen_from_seq(walk->max_seq);  in walk_pte_range()  local
4059 		old_gen = folio_update_gen(folio, new_gen);  in walk_pte_range()
4060 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pte_range()
4061 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pte_range()
4083 	int old_gen, new_gen = lru_gen_from_seq(walk->max_seq);  in walk_pmd_range_locked()  local
4139 		old_gen = folio_update_gen(folio, new_gen);  in walk_pmd_range_locked()
4140 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pmd_range_locked()
4141 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pmd_range_locked()
4364 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in inc_min_seq()  local
4371 		struct list_head *head = &lrugen->folios[old_gen][type][zone];  in inc_min_seq()
4665 	int old_gen, new_gen = lru_gen_from_seq(max_seq);  in lru_gen_look_around()  local
4724 			old_gen = folio_update_gen(folio, new_gen);  in lru_gen_look_around()
4725 			if (old_gen >= 0 && old_gen != new_gen)  in lru_gen_look_around()
4726 				update_batch_size(walk, folio, old_gen, new_gen);  in lru_gen_look_around()
4731 		old_gen = folio_lru_gen(folio);  in lru_gen_look_around()
4732 		if (old_gen < 0)  in lru_gen_look_around()
4734 		else if (old_gen != new_gen)  in lru_gen_look_around()