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-rw-r--r--mm/memcontrol.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c5bfb3eacd08..767f49a6b987 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2577,6 +2577,7 @@ static int try_charge_memcg(struct mem_cgroup *memcg, gfp_t gfp_mask,
bool passed_oom = false;
bool may_swap = true;
bool drained = false;
+ bool raised_max_event = false;
unsigned long pflags;
retry:
@@ -2616,6 +2617,7 @@ retry:
goto nomem;
memcg_memory_event(mem_over_limit, MEMCG_MAX);
+ raised_max_event = true;
psi_memstall_enter(&pflags);
nr_reclaimed = try_to_free_mem_cgroup_pages(mem_over_limit, nr_pages,
@@ -2683,6 +2685,13 @@ nomem:
return -ENOMEM;
force:
/*
+ * If the allocation has to be enforced, don't forget to raise
+ * a MEMCG_MAX event.
+ */
+ if (!raised_max_event)
+ memcg_memory_event(mem_over_limit, MEMCG_MAX);
+
+ /*
* The allocation either can't fail or will lead to more memory
* being freed very soon. Allow memory usage go over the limit
* temporarily by force charging it.