[PATCH] mm: add group_oom_kill memory.event fix

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Andrew, could you please amend the prior patch "mm: add group_oom_kill
memory.event" with these changes from Johannes and Chris?

Also - small nit: it makes better sense to
s/group_oom_kill/oom_group_kill/g in the patch title.

Reviewed-by: Roman Gushchin <guro@xxxxxx>
Acked-by: Chris Down <chris@xxxxxxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Dan Schatzberg <schatzberg.dan@xxxxxxxxx>
---
 Documentation/admin-guide/cgroup-v2.rst | 3 +--
 mm/memcontrol.c                         | 3 ---
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index eec830ce2068..8269bfa240f4 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1269,8 +1269,7 @@ PAGE_SIZE multiple when read back.
 		killed by any kind of OOM killer.
 
           oom_group_kill
-                The number of times all tasks in the cgroup were killed
-                due to memory.oom.group.
+                The number of times a group OOM has occurred.
 
   memory.events.local
 	Similar to memory.events but the fields in the file are local
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 5ab3b9ce90de..b5454d8fc344 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4390,9 +4390,6 @@ static int mem_cgroup_oom_control_read(struct seq_file *sf, void *v)
 	seq_printf(sf, "under_oom %d\n", (bool)memcg->under_oom);
 	seq_printf(sf, "oom_kill %lu\n",
 		   atomic_long_read(&memcg->memory_events[MEMCG_OOM_KILL]));
-	seq_printf(sf, "oom_group_kill %lu\n",
-		   atomic_long_read(
-			&memcg->memory_events[MEMCG_OOM_GROUP_KILL]));
 	return 0;
 }
 
-- 
2.30.2




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