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authorKairui Song <kasong@tencent.com>2024-11-05 01:52:54 +0800
committerAndrew Morton <akpm@linux-foundation.org>2024-11-11 17:22:25 -0800
commit8d42abbfa4efe5fced63c0157d55f30347d7802c (patch)
treedbdabc1736455b2eaee39052cb97d9f3a7fcdcc9 /mm/memcontrol.c
parent78c0ed09131b772f062b986a2fcca6600daa6285 (diff)
mm/list_lru: code clean up for reparenting
No feature change, just change of code structure and fix comment. The list lrus are not empty until memcg_reparent_list_lru_node() calls are all done, so the comments in memcg_offline_kmem were slightly inaccurate. Link: https://lkml.kernel.org/r/20241104175257.60853-4-ryncsn@gmail.com Signed-off-by: Kairui Song <kasong@tencent.com> Reviewed-by: Muchun Song <muchun.song@linux.dev> Acked-by: Shakeel Butt <shakeel.butt@linux.dev> Cc: Chengming Zhou <zhouchengming@bytedance.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Waiman Long <longman@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6486e9652843..8b9061b58a72 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3111,13 +3111,6 @@ static void memcg_offline_kmem(struct mem_cgroup *memcg)
parent = root_mem_cgroup;
memcg_reparent_objcgs(memcg, parent);
-
- /*
- * After we have finished memcg_reparent_objcgs(), all list_lrus
- * corresponding to this cgroup are guaranteed to remain empty.
- * The ordering is imposed by list_lru_node->lock taken by
- * memcg_reparent_list_lrus().
- */
memcg_reparent_list_lrus(memcg, parent);
}