diff options
| -rw-r--r-- | mm/memcontrol.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index b30a52db6b2d..369d9e1d8333 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1663,15 +1663,21 @@ static bool mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask, .gfp_mask = gfp_mask, .order = order, }; - bool ret; + bool ret = true; if (mutex_lock_killable(&oom_lock)) return true; + + if (mem_cgroup_margin(memcg) >= (1 << order)) + goto unlock; + /* * A few threads which were not waiting at mutex_lock_killable() can * fail to bail out. Therefore, check again after holding oom_lock. */ ret = should_force_charge() || out_of_memory(&oc); + +unlock: mutex_unlock(&oom_lock); return ret; } |