memcg: fix multiple large threshold notifications

[pandora-kernel.git] / mm / memcontrol.c

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d027a24..204de6a 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4385,7 +4385,13 @@ static int compare_thresholds(const void *a, const void *b)
        const struct mem_cgroup_threshold *_a = a;
        const struct mem_cgroup_threshold *_b = b;
 
-       return _a->threshold - _b->threshold;
+       if (_a->threshold > _b->threshold)
+               return 1;
+
+       if (_a->threshold < _b->threshold)
+               return -1;
+
+       return 0;
 }
 
 static int mem_cgroup_oom_notify_cb(struct mem_cgroup *memcg)