diff options
| -rw-r--r-- | mm/memcontrol.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 930de9437271..0e40f0205732 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2169,13 +2169,7 @@ static void drain_all_stock(struct mem_cgroup *root_mem, bool sync) /* Notify other cpus that system-wide "drain" is running */ get_online_cpus(); - /* - * Get a hint for avoiding draining charges on the current cpu, - * which must be exhausted by our charging. It is not required that - * this be a precise check, so we use raw_smp_processor_id() instead of - * getcpu()/putcpu(). - */ - curcpu = raw_smp_processor_id(); + curcpu = get_cpu(); for_each_online_cpu(cpu) { struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu); struct mem_cgroup *mem; @@ -2192,6 +2186,7 @@ static void drain_all_stock(struct mem_cgroup *root_mem, bool sync) schedule_work_on(cpu, &stock->work); } } + put_cpu(); if (!sync) goto out; |