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-rw-r--r--mm/memcontrol.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 04e505bfd7d..2f5534e1968 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2180,11 +2180,8 @@ static void drain_all_stock_async(struct mem_cgroup *root_mem)
struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu);
struct mem_cgroup *mem;
- if (cpu == curcpu)
- continue;
-
mem = stock->cached;
- if (!mem)
+ if (!mem || !stock->nr_pages)
continue;
if (mem != root_mem) {
if (!root_mem->use_hierarchy)
@@ -2193,8 +2190,12 @@ static void drain_all_stock_async(struct mem_cgroup *root_mem)
if (!css_is_ancestor(&mem->css, &root_mem->css))
continue;
}
- if (!test_and_set_bit(FLUSHING_CACHED_CHARGE, &stock->flags))
- schedule_work_on(cpu, &stock->work);
+ if (!test_and_set_bit(FLUSHING_CACHED_CHARGE, &stock->flags)) {
+ if (cpu == curcpu)
+ drain_local_stock(&stock->work);
+ else
+ schedule_work_on(cpu, &stock->work);
+ }
}
put_online_cpus();
mutex_unlock(&percpu_charge_mutex);