From: Kuan-Ying Lee Kuan-Ying.Lee@mediatek.com
commit aa1e6a932ca652a50a5df458399724a80459f521 upstream.
If we call folio_isolate_lru() successfully, we will get return value 0. We need to add this folio to the movable_pages_list.
Link: https://lkml.kernel.org/r/20230131063206.28820-1-Kuan-Ying.Lee@mediatek.com Fixes: 67e139b02d99 ("mm/gup.c: refactor check_and_migrate_movable_pages()") Signed-off-by: Kuan-Ying Lee Kuan-Ying.Lee@mediatek.com Reviewed-by: Alistair Popple apopple@nvidia.com Acked-by: David Hildenbrand david@redhat.com Reviewed-by: Baolin Wang baolin.wang@linux.alibaba.com Cc: Andrew Yang andrew.yang@mediatek.com Cc: Chinwen Chang chinwen.chang@mediatek.com Cc: John Hubbard jhubbard@nvidia.com Cc: Matthias Brugger matthias.bgg@gmail.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- mm/gup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/gup.c +++ b/mm/gup.c @@ -1978,7 +1978,7 @@ static unsigned long collect_longterm_un drain_allow = false; }
- if (!folio_isolate_lru(folio)) + if (folio_isolate_lru(folio)) continue;
list_add_tail(&folio->lru, movable_page_list);