diff options
| -rw-r--r-- | mm/slab.h | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/mm/slab.h b/mm/slab.h index 43ac818b8592..4dafae2c8620 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -310,7 +310,7 @@ static inline bool is_root_cache(struct kmem_cache *s) static inline bool slab_equal_or_root(struct kmem_cache *s, struct kmem_cache *p) { - return true; + return s == p; } static inline const char *cache_name(struct kmem_cache *s) @@ -363,18 +363,16 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x) * will also be a constant. */ if (!memcg_kmem_enabled() && + !IS_ENABLED(CONFIG_SLAB_FREELIST_HARDENED) && !unlikely(s->flags & SLAB_CONSISTENCY_CHECKS)) return s; page = virt_to_head_page(x); cachep = page->slab_cache; - if (slab_equal_or_root(cachep, s)) - return cachep; - - pr_err("%s: Wrong slab cache. %s but object is from %s\n", - __func__, s->name, cachep->name); - WARN_ON_ONCE(1); - return s; + WARN_ONCE(!slab_equal_or_root(cachep, s), + "%s: Wrong slab cache. %s but object is from %s\n", + __func__, s->name, cachep->name); + return cachep; } static inline size_t slab_ksize(const struct kmem_cache *s) |