* [to-be-updated] memcg-remove-mem_cgroup-soft_limit.patch removed from -mm tree
@ 2026-09-02 19:33 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2026-09-02 19:33 UTC (permalink / raw)
To: mm-commits, shakeel.butt, akpm
The quilt patch titled
Subject: memcg: remove mem_cgroup->soft_limit
has been removed from the -mm tree. Its filename was
memcg-remove-mem_cgroup-soft_limit.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: Shakeel Butt <shakeel.butt@linux.dev>
Subject: memcg: remove mem_cgroup->soft_limit
Date: Tue, 11 Aug 2026 13:32:02 -0700
Nothing reads it anymore, so the field and the helper that reset it on css
alloc and css reset can go.
Link: https://lore.kernel.org/20260811203203.3456029-9-shakeel.butt@linux.dev
Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/memcontrol.h | 2 --
mm/memcontrol-v1.h | 6 ------
mm/memcontrol.c | 2 --
3 files changed, 10 deletions(-)
--- a/include/linux/memcontrol.h~memcg-remove-mem_cgroup-soft_limit
+++ a/include/linux/memcontrol.h
@@ -280,8 +280,6 @@ struct mem_cgroup {
struct memcg1_events_percpu __percpu *events_percpu;
- unsigned long soft_limit;
-
/* protected by memcg_oom_lock */
bool oom_lock;
int under_oom;
--- a/mm/memcontrol.c~memcg-remove-mem_cgroup-soft_limit
+++ a/mm/memcontrol.c
@@ -4257,7 +4257,6 @@ mem_cgroup_css_alloc(struct cgroup_subsy
return ERR_CAST(memcg);
page_counter_set_high(&memcg->memory, PAGE_COUNTER_MAX);
- memcg1_soft_limit_reset(memcg);
#ifdef CONFIG_ZSWAP
memcg->zswap_max = PAGE_COUNTER_MAX;
WRITE_ONCE(memcg->zswap_writeback, true);
@@ -4464,7 +4463,6 @@ static void mem_cgroup_css_reset(struct
page_counter_set_min(&memcg->memory, 0);
page_counter_set_low(&memcg->memory, 0);
page_counter_set_high(&memcg->memory, PAGE_COUNTER_MAX);
- memcg1_soft_limit_reset(memcg);
page_counter_set_high(&memcg->swap, PAGE_COUNTER_MAX);
memcg_wb_domain_size_changed(memcg);
}
--- a/mm/memcontrol-v1.h~memcg-remove-mem_cgroup-soft_limit
+++ a/mm/memcontrol-v1.h
@@ -42,11 +42,6 @@ void memcg1_free_events(struct mem_cgrou
void memcg1_memcg_init(struct mem_cgroup *memcg);
-static inline void memcg1_soft_limit_reset(struct mem_cgroup *memcg)
-{
- WRITE_ONCE(memcg->soft_limit, PAGE_COUNTER_MAX);
-}
-
struct cgroup_taskset;
void memcg1_css_offline(struct mem_cgroup *memcg);
@@ -97,7 +92,6 @@ 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_soft_limit_reset(struct mem_cgroup *memcg) {}
static inline void memcg1_css_offline(struct mem_cgroup *memcg) {}
static inline bool memcg1_oom_prepare(struct mem_cgroup *memcg, bool *locked)
_
Patches currently in -mm which might be from shakeel.butt@linux.dev are
memcg-avoid-charging-the-root-memcg-from-obj_cgroup_charge_pages.patch
mm-mlock-use-the-irq-safe-accessor-for-nr_mlock-in-__munlock_folio.patch
memcg-clear-flushing_cached_charge-on-cpu-offline.patch
memcg-trim-the-per-cpu-charge-stock-instead-of-draining-it.patch
memcg-simplify-v1-event-ratelimiting.patch
a.patch
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2026-09-02 19:33 [to-be-updated] memcg-remove-mem_cgroup-soft_limit.patch removed from -mm tree Andrew Morton
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