mm/slub: remove 'per_cpu' which is useless variable

Remove 'per_cpu', since it is useless now after the patch: "205ab99
slub: Update statistics handling for variable order slabs". And the
partial list is handled in the same way as the per cpu slab.

Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

1 files changed, 1 insertions, 5 deletions

diff --git a/mm/slub.c b/mm/slub.c
index 3b482c863002..4636c8810b8d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4271,12 +4271,10 @@ static ssize_t show_slab_objects(struct kmem_cache *s,
         int node;
         int x;
         unsigned long *nodes;
-        unsigned long *per_cpu;
 
-        nodes = kzalloc(2 * sizeof(unsigned long) * nr_node_ids, GFP_KERNEL);
+        nodes = kzalloc(sizeof(unsigned long) * nr_node_ids, GFP_KERNEL);
         if (!nodes)
                 return -ENOMEM;
-        per_cpu = nodes + nr_node_ids;
 
         if (flags & SO_CPU) {
                 int cpu;
@@ -4307,8 +4305,6 @@ static ssize_t show_slab_objects(struct kmem_cache *s,
                                 total += x;
                                 nodes[node] += x;
                         }
-
-                        per_cpu[node]++;
                 }
         }