1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index f4e857e920cd..fd720e3dd1b8 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -99,6 +99,11 @@ struct kmem_cache {
 	 */
 	int remote_node_defrag_ratio;
 #endif
+
+#ifdef CONFIG_KASAN
+	struct kasan_cache kasan_info;
+#endif
+
 	struct kmem_cache_node *node[MAX_NUMNODES];
 };
 
@@ -130,4 +135,15 @@ static inline void *virt_to_obj(struct kmem_cache *s,
 void object_err(struct kmem_cache *s, struct page *page,
 		u8 *object, char *reason);
 
+static inline void *nearest_obj(struct kmem_cache *cache, struct page *page,
+				void *x) {
+	void *object = x - (x - page_address(page)) % cache->size;
+	void *last_object = page_address(page) +
+		(page->objects - 1) * cache->size;
+	if (unlikely(object > last_object))
+		return last_object;
+	else
+		return object;
+}
+
 #endif /* _LINUX_SLUB_DEF_H */