prep_transhuge_page should be called when PageTransHuge(page) is true. The newly allocated new_page is not yet PageTransHuge though it could pass the check as PageTransHuge only checks PageHead now. Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> --- mm/migrate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index 26943bd819e8..15cac2dabc93 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1560,7 +1560,7 @@ struct page *alloc_migration_target(struct page *page, unsigned long private) new_page = __alloc_pages(gfp_mask, order, nid, mtc->nmask); - if (new_page && PageTransHuge(new_page)) + if (new_page && PageTransHuge(page)) prep_transhuge_page(new_page); return new_page; -- 2.23.0
