1 files changed, 10 insertions, 2 deletions

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 79d59c937fac..4131e5fbd18b 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -53,6 +53,15 @@ struct kmem_cache_node {
 };
 
 /*
+ * Word size structure that can be atomically updated or read and that
+ * contains both the order and the number of objects that a slab of the
+ * given order would contain.
+ */
+struct kmem_cache_order_objects {
+        unsigned long x;
+};
+
+/*
  * Slab cache management.
  */
 struct kmem_cache {
@@ -61,7 +70,7 @@ struct kmem_cache {
         int size;               /* The size of an object including meta data */
         int objsize;            /* The size of an object without meta data */
         int offset;             /* Free pointer offset. */
-        int order;              /* Current preferred allocation order */
+        struct kmem_cache_order_objects oo;
 
         /*
          * Avoid an extra cache line for UP, SMP and for the node local to
@@ -70,7 +79,6 @@ struct kmem_cache {
         struct kmem_cache_node local_node;
 
         /* Allocation and freeing of slabs */
-        int objects;            /* Number of objects in slab */
         gfp_t allocflags;       /* gfp flags to use on each alloc */
         int refcount;           /* Refcount for slab cache destroy */
         void (*ctor)(struct kmem_cache *, void *);