slub: reduce differences between SMP and NUMA

Reduce the #ifdefs and simplify bootstrap by making SMP and NUMA as much alike
as possible. This means that there will be an additional indirection to get to
the kmem_cache_node field under SMP.

Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index a6c43ec6a4a5..b33c0f2e61dc 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -96,11 +96,8 @@ struct kmem_cache {
          * Defragmentation by allocating from a remote node.
          */
         int remote_node_defrag_ratio;
-        struct kmem_cache_node *node[MAX_NUMNODES];
-#else
-        /* Avoid an extra cache line for UP */
-        struct kmem_cache_node local_node;
 #endif
+        struct kmem_cache_node *node[MAX_NUMNODES];
 };
 
 /*