[PATCH 1/3] fixup! mm: always initialise folio->_deferred_list

[Peter Xu]

Current mm-unstable will hit this when running test_hugetlb_memcg.  This
fixes the crash for me.

Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
 mm/memcontrol.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 1840ba4c355d..7703ced535a3 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -7529,6 +7529,7 @@ static void uncharge_folio(struct folio *folio, struct uncharge_gather *ug)
 
 	VM_BUG_ON_FOLIO(folio_test_lru(folio), folio);
 	VM_BUG_ON_FOLIO(folio_order(folio) > 1 &&
+			!folio_test_hugetlb(folio) &&
 			!list_empty(&folio->_deferred_list), folio);
 
 	/*
-- 
2.44.0