diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e79cb59552d9..9518aefd8cbb 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1666,6 +1666,9 @@ enum oom_status { static enum oom_status mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int order) { + enum oom_status ret; + bool locked; + if (order > PAGE_ALLOC_COSTLY_ORDER) return OOM_SKIPPED; @@ -1698,10 +1701,23 @@ static enum oom_status mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int return OOM_ASYNC; } - if (mem_cgroup_out_of_memory(memcg, mask, order)) - return OOM_SUCCESS; + mem_cgroup_mark_under_oom(memcg); - return OOM_FAILED; + locked = mem_cgroup_oom_trylock(memcg); + + if (locked) + mem_cgroup_oom_notify(memcg); + + mem_cgroup_unmark_under_oom(memcg); + if (mem_cgroup_out_of_memory(memcg, mask, order)) + ret = OOM_SUCCESS; + else + ret = OOM_FAILED; + + if (locked) + mem_cgroup_oom_unlock(memcg); + + return ret; } /**