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-rw-r--r--mm/memcontrol.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e9e79ceb9a11..3d040a5fa7a3 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -619,6 +619,9 @@ static inline void memcg_rstat_updated(struct mem_cgroup *memcg, int val)
{
unsigned int x;
+ if (!val)
+ return;
+
cgroup_rstat_updated(memcg->css.cgroup, smp_processor_id());
x = __this_cpu_add_return(stats_updates, abs(val));