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memcg-remove-the-soft-limit-rbtree.patch removed from -mm tree

merged mm-stable Andrew Morton 1 participant 1 message Oct 7

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The quilt patch titled
Subject: memcg: remove the soft limit rbtree
has been removed from the -mm tree. Its filename was
memcg-remove-the-soft-limit-rbtree.patch

This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Shakeel Butt <[email protected]>
Subject: memcg: remove the soft limit rbtree
Date: Wed, 2 Sep 2026 10:43:07 -0700

With soft limit reclaim gone, the per-node rbtree of cgroups in excess has no readers left. Remove the tree, the helpers maintaining it, and the subsys_initcall that existed only to allocate it. memcg1_check_events() no longer needs to feed it, which also drops the last caller of lru_gen_soft_reclaim().

Link https://lore.kernel.org/[email protected] open here
Signed-off-by Shakeel Butt <[email protected]>
Signed-off-by Andrew Morton <[email protected]>
Acked-by Michal Hocko <[email protected]>
Acked-by Lorenzo Stoakes (ARM) <[email protected]>
Cc Axel Rasmussen <[email protected]>
Cc Barry Song <[email protected]>
Cc David Hildenbrand <[email protected]>
Cc Johannes Weiner <[email protected]>
Cc Kairui Song <[email protected]>
Cc Muchun Song <[email protected]>
Cc Roman Gushchin <[email protected]>
Cc T.J. Mercier <[email protected]>

---

 mm/memcontrol-v1.c |  176 -------------------------------------------
 mm/memcontrol-v1.h |    2 
 mm/memcontrol.c    |    1 
 3 files changed, 2 insertions(+), 177 deletions(-)
mm/memcontrol.c renamed from mm/memcontrol.c~memcg-remove-the-soft-limit-rbtree +0 -1
@@ -4429,7 +4429,6 @@ static void mem_cgroup_css_free(struct c
 
 	vmpressure_cleanup(&memcg->vmpressure);
 	cancel_work_sync(&memcg->high_work);
-	memcg1_remove_from_trees(memcg);
 	free_shrinker_info(memcg);
 	mem_cgroup_free(memcg);
 }
mm/memcontrol-v1.c renamed from mm/memcontrol-v1.c~memcg-remove-the-soft-limit-rbtree +2 -174

204 lines not on this page · raw message

mm/memcontrol-v1.h renamed from mm/memcontrol-v1.h~memcg-remove-the-soft-limit-rbtree +0 -2
@@ -41,7 +41,6 @@ bool memcg1_alloc_events(struct mem_cgro
 void memcg1_free_events(struct mem_cgroup *memcg);
 
 void memcg1_memcg_init(struct mem_cgroup *memcg);
-void memcg1_remove_from_trees(struct mem_cgroup *memcg);
 
 static inline void memcg1_soft_limit_reset(struct mem_cgroup *memcg)
 {

@@ -98,7 +97,6 @@ static inline bool memcg1_alloc_events(s
 static inline void memcg1_free_events(struct mem_cgroup *memcg) {}
 
 static inline void memcg1_memcg_init(struct mem_cgroup *memcg) {}
-static inline void memcg1_remove_from_trees(struct mem_cgroup *memcg) {}
 static inline void memcg1_soft_limit_reset(struct mem_cgroup *memcg) {}
 static inline void memcg1_css_offline(struct mem_cgroup *memcg) {}

_

Patches currently in -mm which might be from [email protected] are

memcg-move-per-node-objcg-to-the-read-mostly-fields.patch memcg-split-mem_cgroup_private_id-into-two-fields.patch memcg-group-the-write-hot-fields-of-struct-mem_cgroup.patch memcg-group-the-cold-fields-of-struct-mem_cgroup.patch memcg-group-the-read-mostly-fields-of-struct-mem_cgroup.patch memcg-group-the-fields-of-struct-mem_cgroup_per_node.patch