[PATCH] mm: memcontrol: correct the comment of mem_cgroup_unmark_under_oom()

[Miaohe Lin]

Since commit fb2a6fc56be6 ("mm: memcg: rework and document OOM waiting and
wakeup"), we have renamed mem_cgroup_oom_lock to mem_cgroup_oom_trylock. So
replace mem_cgroup_oom_lock with mem_cgroup_oom_trylock in comment.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 mm/memcontrol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3d26b4b954e2..702aa4d7ebbc 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1846,7 +1846,7 @@ static void mem_cgroup_unmark_under_oom(struct mem_cgroup *memcg)
 
 	/*
 	 * When a new child is created while the hierarchy is under oom,
-	 * mem_cgroup_oom_lock() may not be called. Watch for underflow.
+	 * mem_cgroup_oom_trylock() may not be called. Watch for underflow.
 	 */
 	spin_lock(&memcg_oom_lock);
 	for_each_mem_cgroup_tree(iter, memcg)
-- 
2.19.1