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authorChristoph Lameter <cl@linux.com>2011-03-22 13:35:00 -0500
committerPekka Enberg <penberg@kernel.org>2011-03-22 20:48:04 +0200
commit4fdccdfbb4652a7bbac8adbce7449eb093775118 (patch)
treeff780cfea8087ea4143b1a2186257448f0bad3bb /include
parent2fd66c517d5e98de2528d86e0e62f5069ff99f59 (diff)
downloadlinux-4fdccdfbb4652a7bbac8adbce7449eb093775118.tar.bz2
slub: Add statistics for this_cmpxchg_double failures
Add some statistics for debugging. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/slub_def.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 90fbb6d87e11..45ca123e8002 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -32,6 +32,7 @@ enum stat_item {
DEACTIVATE_TO_TAIL, /* Cpu slab was moved to the tail of partials */
DEACTIVATE_REMOTE_FREES,/* Slab contained remotely freed objects */
ORDER_FALLBACK, /* Number of times fallback was necessary */
+ CMPXCHG_DOUBLE_CPU_FAIL,/* Failure of this_cpu_cmpxchg_double */
NR_SLUB_STAT_ITEMS };
struct kmem_cache_cpu {