This prepares for upcoming checks in page freeing path.

Signed-off-by: Zi Yan <ziy@nvidia.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Christoph Lameter <cl@gentwo.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Harry Yoo <harry.yoo@oracle.com>
Cc: linux-mm@kvack.org
---
 mm/slub.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/slub.c b/mm/slub.c
index 865bc050f654..012c71e7b488 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3511,6 +3511,7 @@ static void __free_slab(struct kmem_cache *s, struct slab *slab, bool allow_spin
 
 	__slab_clear_pfmemalloc(slab);
 	page->mapping = NULL;
+	set_page_private(page, 0);
 	__ClearPageSlab(page);
 	mm_account_reclaimed_pages(pages);
 	unaccount_slab(slab, order, s, allow_spin);
-- 
2.51.0