slub: Fixes to per cpu stat output in sysfs

Only output per cpu stats if the kernel is build for SMP.

Use a capital "C" as a leading character for the processor number
(same as the numa statistics that also use a capital letter "N").

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

1 files changed, 3 insertions, 1 deletions

diff --git a/mm/slub.c b/mm/slub.c
index 3fcdcf7d77ba..23e5ee7b149f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3979,10 +3979,12 @@ static int show_stat(struct kmem_cache *s, char *buf, enum stat_item si)
 
         len = sprintf(buf, "%lu", sum);
 
+#ifdef CONFIG_SMP
         for_each_online_cpu(cpu) {
                 if (data[cpu] && len < PAGE_SIZE - 20)
-                        len += sprintf(buf + len, " c%d=%u", cpu, data[cpu]);
+                        len += sprintf(buf + len, " C%d=%u", cpu, data[cpu]);
         }
+#endif
         kfree(data);
         return len + sprintf(buf + len, "\n");
 }