linux-master/mm/vmscan.c

3232 		return !walk->can_swap;
3242 		return !walk->can_swap;
3316 				   struct pglist_data *pgdat, bool can_swap)
3332 	if (!folio_is_file_lru(folio) && !can_swap)
3388 		folio = get_pfn_folio(pfn, memcg, pgdat, walk->can_swap);
3469 		folio = get_pfn_folio(pfn, memcg, pgdat, walk->can_swap);
3698 static bool inc_min_seq(struct lruvec *lruvec, int type, bool can_swap)
3705 	if (type == LRU_GEN_ANON && !can_swap)
3734 static bool try_to_inc_min_seq(struct lruvec *lruvec, bool can_swap)
3744 	for (type = !can_swap; type < ANON_AND_FILE; type++) {
3760 	if (can_swap) {
3765 	for (type = !can_swap; type < ANON_AND_FILE; type++) {
3778 			bool can_swap, bool force_scan)
3800 		VM_WARN_ON_ONCE(!force_scan && (type == LRU_GEN_FILE || can_swap));
3802 		if (inc_min_seq(lruvec, type, can_swap))
3846 			       bool can_swap, bool force_scan)
3857 		return inc_max_seq(lruvec, seq, can_swap, force_scan);
3882 	walk->can_swap = can_swap;
3892 		success = inc_max_seq(lruvec, seq, can_swap, force_scan);
3907 	bool can_swap = get_swappiness(lruvec, sc);
3913 	for (type = !can_swap; type < ANON_AND_FILE; type++) {
4015 	bool can_swap = !folio_is_file_lru(folio);
4069 		folio = get_pfn_folio(pfn, memcg, pgdat, can_swap);
4617 			     bool can_swap, unsigned long *nr_to_scan)
4627 	if (min_seq[!can_swap] + MIN_NR_GENS > max_seq) {
4632 	for (type = !can_swap; type < ANON_AND_FILE; type++) {
4658 	if (min_seq[!can_swap] + MIN_NR_GENS < max_seq)
4681 static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, bool can_swap)
4691 	success = should_run_aging(lruvec, max_seq, can_swap, &nr_to_scan);
4702 	return try_to_inc_max_seq(lruvec, max_seq, can_swap, false) ? -1 : 0;
5358 		     bool can_swap, bool force_scan)
5369 	if (!force_scan && min_seq[!can_swap] + MAX_NR_GENS - 1 <= max_seq)
5372 	try_to_inc_max_seq(lruvec, max_seq, can_swap, force_scan);