3675 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in folio_inc_gen()  local
3681 		new_gen = ((old_flags & LRU_GEN_MASK) >> LRU_GEN_PGOFF) - 1;  in folio_inc_gen()
3683 		if (new_gen >= 0 && new_gen != old_gen)  in folio_inc_gen()
3684 			return new_gen;  in folio_inc_gen()
3686 		new_gen = (old_gen + 1) % MAX_NR_GENS;  in folio_inc_gen()
3689 		new_flags |= (new_gen + 1UL) << LRU_GEN_PGOFF;  in folio_inc_gen()
3695 	lru_gen_update_size(lruvec, folio, old_gen, new_gen);  in folio_inc_gen()
3697 	return new_gen;  in folio_inc_gen()
3701 			      int old_gen, int new_gen)  in update_batch_size()  argument
3708 	VM_WARN_ON_ONCE(new_gen >= MAX_NR_GENS);  in update_batch_size()
3713 	walk->nr_pages[new_gen][type][zone] += delta;  in update_batch_size()
3887 	int old_gen, new_gen = lru_gen_from_seq(walk->max_seq);  in walk_pte_range()  local
3930 		old_gen = folio_update_gen(folio, new_gen);  in walk_pte_range()
3931 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pte_range()
3932 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pte_range()
3956 	int old_gen, new_gen = lru_gen_from_seq(walk->max_seq);  in walk_pmd_range_locked()  local
4010 		old_gen = folio_update_gen(folio, new_gen);  in walk_pmd_range_locked()
4011 		if (old_gen >= 0 && old_gen != new_gen)  in walk_pmd_range_locked()
4012 			update_batch_size(walk, folio, old_gen, new_gen);  in walk_pmd_range_locked()
4237 	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);  in inc_min_seq()  local
4254 			new_gen = folio_inc_gen(lruvec, folio, false);  in inc_min_seq()
4255 			list_move_tail(&folio->lru, &lrugen->lists[new_gen][type][zone]);  in inc_min_seq()
4604 	int old_gen, new_gen = lru_gen_from_seq(max_seq);  in lru_gen_look_around()  local
4661 		else if (old_gen != new_gen)  in lru_gen_look_around()
4686 		new_gen = lru_gen_from_seq(lruvec->lrugen.max_seq);  in lru_gen_look_around()
4694 		old_gen = folio_update_gen(folio, new_gen);  in lru_gen_look_around()
4695 		if (old_gen < 0 || old_gen == new_gen)  in lru_gen_look_around()
4699 			update_batch_size(walk, folio, old_gen, new_gen);  in lru_gen_look_around()
4701 			lru_gen_update_size(lruvec, folio, old_gen, new_gen);  in lru_gen_look_around()