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-rw-r--r--include/linux/slab.h6
-rw-r--r--mm/slub.c5
2 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index b5f5ee8308d0..58794043ab5b 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -28,6 +28,12 @@
*/
/* DEBUG: Perform (expensive) checks on alloc/free */
#define SLAB_CONSISTENCY_CHECKS ((slab_flags_t __force)0x00000100U)
+/* Slab created using create_boot_cache */
+#ifdef CONFIG_SLAB_OBJ_EXT
+#define SLAB_NO_OBJ_EXT ((slab_flags_t __force)0x00000200U)
+#else
+#define SLAB_NO_OBJ_EXT 0
+#endif
/* DEBUG: Red zone objs in a cache */
#define SLAB_RED_ZONE ((slab_flags_t __force)0x00000400U)
/* DEBUG: Poison objects */
diff --git a/mm/slub.c b/mm/slub.c
index 2ba5d7b2711d..e94d3cc1b270 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5704,7 +5704,8 @@ void __init kmem_cache_init(void)
node_set(node, slab_nodes);
create_boot_cache(kmem_cache_node, "kmem_cache_node",
- sizeof(struct kmem_cache_node), SLAB_HWCACHE_ALIGN, 0, 0);
+ sizeof(struct kmem_cache_node),
+ SLAB_HWCACHE_ALIGN | SLAB_NO_OBJ_EXT, 0, 0);
hotplug_memory_notifier(slab_memory_callback, SLAB_CALLBACK_PRI);
@@ -5714,7 +5715,7 @@ void __init kmem_cache_init(void)
create_boot_cache(kmem_cache, "kmem_cache",
offsetof(struct kmem_cache, node) +
nr_node_ids * sizeof(struct kmem_cache_node *),
- SLAB_HWCACHE_ALIGN, 0, 0);
+ SLAB_HWCACHE_ALIGN | SLAB_NO_OBJ_EXT, 0, 0);
kmem_cache = bootstrap(&boot_kmem_cache);
kmem_cache_node = bootstrap(&boot_kmem_cache_node);