diff options
| -rw-r--r-- | mm/memcontrol.c | 13 |
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); |