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mm/memcg: update obsolete comment above parent_mem_cgroup()

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Since commit bef8620cd8 ("mm: memcg: deprecate the non-hierarchical
mode"), use_hierarchy is already deprecated.  And it's further removed via
commit 9d9d341df4 ("cgroup: remove obsoleted broken_hierarchy and
warned_broken_hierarchy").  Update corresponding comment.

Link: https://lkml.kernel.org/r/20230801124359.2266860-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2023-08-01 20:43:59 +08:00 committed by Andrew Morton
parent 6a718bd2ed
commit ca39c5e7d1
1 changed files with 1 additions and 2 deletions
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3
include/linux/memcontrol.h
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@ -860,8 +860,7 @@ static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec)
* parent_mem_cgroup - find the accounting parent of a memcg
* @memcg: memcg whose parent to find
*
* Returns the parent memcg, or NULL if this is the root or the memory
* controller is in legacy no-hierarchy mode.
* Returns the parent memcg, or NULL if this is the root.
*/
static inline struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg)
{