[PATCH] mm/memcg: update obsolete comment above parent_mem_cgroup()

From: Miaohe Lin
Date: Tue Aug 01 2023 - 08:44:18 EST


Since commit bef8620cd8e0 ("mm: memcg: deprecate the non-hierarchical
mode"), use_hierarchy is already deprecated. And it's further removed
via commit 9d9d341df4d5 ("cgroup: remove obsoleted broken_hierarchy
and warned_broken_hierarchy"). Update corresponding comment.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
include/linux/memcontrol.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 3bd00f224224..11810a2cfd2d 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -863,8 +863,7 @@ 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)
{
--
2.33.0