From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> [ Upstream commit 2ac9e99f3b21b2864305fbfba4bae5913274c409 ] Rename numamigrate_isolate_page() to numamigrate_isolate_folio(), then make it takes a folio and use folio API to save compound_head() calls. Link: https://lkml.kernel.org/r/20230913095131.2426871-4-wangkefeng.wang@xxxxxxxxxx Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> Reviewed-by: Zi Yan <ziy@xxxxxxxxxx> Cc: David Hildenbrand <david@xxxxxxxxxx> Cc: "Huang, Ying" <ying.huang@xxxxxxxxx> Cc: Hugh Dickins <hughd@xxxxxxxxxx> Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Stable-dep-of: 2774f256e7c0 ("mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- mm/migrate.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index c9fabb960996f..e5f2f7243a659 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2501,10 +2501,9 @@ static struct folio *alloc_misplaced_dst_folio(struct folio *src, return __folio_alloc_node(gfp, order, nid); } -static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) +static int numamigrate_isolate_folio(pg_data_t *pgdat, struct folio *folio) { - int nr_pages = thp_nr_pages(page); - int order = compound_order(page); + int nr_pages = folio_nr_pages(folio); /* Avoid migrating to a node that is nearly full */ if (!migrate_balanced_pgdat(pgdat, nr_pages)) { @@ -2516,22 +2515,23 @@ static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page) if (managed_zone(pgdat->node_zones + z)) break; } - wakeup_kswapd(pgdat->node_zones + z, 0, order, ZONE_MOVABLE); + wakeup_kswapd(pgdat->node_zones + z, 0, + folio_order(folio), ZONE_MOVABLE); return 0; } - if (!isolate_lru_page(page)) + if (!folio_isolate_lru(folio)) return 0; - mod_node_page_state(page_pgdat(page), NR_ISOLATED_ANON + page_is_file_lru(page), + node_stat_mod_folio(folio, NR_ISOLATED_ANON + folio_is_file_lru(folio), nr_pages); /* - * Isolating the page has taken another reference, so the - * caller's reference can be safely dropped without the page + * Isolating the folio has taken another reference, so the + * caller's reference can be safely dropped without the folio * disappearing underneath us during migration. */ - put_page(page); + folio_put(folio); return 1; } @@ -2565,7 +2565,7 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, if (page_is_file_lru(page) && PageDirty(page)) goto out; - isolated = numamigrate_isolate_page(pgdat, page); + isolated = numamigrate_isolate_folio(pgdat, page_folio(page)); if (!isolated) goto out; -- 2.43.0
