diff options
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 209078154a46..7b986c9f4032 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -420,19 +420,17 @@ int folio_migrate_mapping(struct address_space *mapping, newfolio->index = folio->index; newfolio->mapping = folio->mapping; folio_ref_add(newfolio, nr); /* add cache reference */ - if (folio_test_swapbacked(folio)) { + if (folio_test_swapbacked(folio)) __folio_set_swapbacked(newfolio); - if (folio_test_swapcache(folio)) { - int i; + if (folio_test_swapcache(folio)) { + int i; - folio_set_swapcache(newfolio); - for (i = 0; i < nr; i++) - set_page_private(folio_page(newfolio, i), - page_private(folio_page(folio, i))); - } + folio_set_swapcache(newfolio); + for (i = 0; i < nr; i++) + set_page_private(folio_page(newfolio, i), + page_private(folio_page(folio, i))); entries = nr; } else { - VM_BUG_ON_FOLIO(folio_test_swapcache(folio), folio); entries = 1; } @@ -2424,6 +2422,14 @@ static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) if (managed_zone(pgdat->node_zones + z)) break; } + + /* + * If there are no managed zones, it should not proceed + * further. + */ + if (z < 0) + return 0; + wakeup_kswapd(pgdat->node_zones + z, 0, order, ZONE_MOVABLE); return 0; } |