From 98e99fc4ad4b30dd28c09ba19686ec583af345b4 Mon Sep 17 00:00:00 2001 From: Hao Li Date: Thu, 5 Feb 2026 20:07:23 +0800 Subject: [PATCH] slub: let need_slab_obj_exts() return false if SLAB_NO_OBJ_EXT is set SLAB_NO_OBJ_EXT is set for boot caches, but need_slab_obj_exts() doesn't check this flag. We should return false unconditionally when SLAB_NO_OBJ_EXT is set. Signed-off-by: Hao Li Acked-by: Harry Yoo Link: https://patch.msgid.link/20260205120709.425719-1-hao.li@linux.dev Signed-off-by: Vlastimil Babka --- mm/slub.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/slub.c b/mm/slub.c index 18ac9460f9e9..6fac2b123b42 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -898,6 +898,9 @@ static inline unsigned long get_orig_size(struct kmem_cache *s, void *object) */ static inline bool need_slab_obj_exts(struct kmem_cache *s) { + if (s->flags & SLAB_NO_OBJ_EXT) + return false; + if (memcg_kmem_online() && (s->flags & SLAB_ACCOUNT)) return true; -- 2.47.3