From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B549C287247 for ; Sat, 29 Aug 2026 02:44:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787971444; cv=none; b=J6VkRdgbCPooM2fuJyq2dmh5FEwHANkVL8PMRjTAkEYHhvS1qQv6mfjyC2HkLwr7K3z/Bh37pEKM2JN1Y+IqAglrkU95vmI1g6X+f2DLcFAItu9dwx6Nxe3K8tMzcRVYQZd963GudbfIJJyd14A8PNMJK/ykerS6RI8LaY2UtNc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787971444; c=relaxed/simple; bh=HHzaE4aG5PBCmsAJNFH3+YW1YsWRrTBS8aFhHqxnT9M=; h=Date:To:From:Subject:Message-Id; b=huM2aIifi377J08JA9XmAIjqMT7VEYoP5lxb9DogkKU6GUZbD6H4l1XR5e99B5zbe1/ikfF5dVAWiHOy0hl7VwOHjU+PQ4mpF21hiyCIFYGK2C4hT9p4FawpL2xa/MbwM6x4L5FZjDmkcc5A8x8Wgl1xRLW/2r6GeUjhHOnFtuY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=qPx6jCM7; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="qPx6jCM7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3EFF21F000E9; Sat, 29 Aug 2026 02:44:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1787971442; bh=Tx4T6V/y17JDf0b+u4ICmkVhNSXOlYkDCbzSGQgaqX8=; h=Date:To:From:Subject; b=qPx6jCM7fXpe5xA6UuYU8mhfx6LujtMtF+XKQXEO+gFUUWsQjcCAxYwIZ6yOZRu0s WCtGptgObBVZ9FF4uVvBRx7/4sGpc45VJKZqDeRWvrbXSfw2LDlMOLXfAlzHccbTrP Yg1TgXsZt+/PWcXS5Yo8T5v3aGMgfhdSL/qL9/cc= Date: Fri, 28 Aug 2026 19:44:01 -0700 To: mm-commits@vger.kernel.org,tjmercier@google.com,roman.gushchin@linux.dev,muchun.song@linux.dev,mhocko@suse.com,ljs@kernel.org,kasong@tencent.com,hannes@cmpxchg.org,david@kernel.org,baohua@kernel.org,axelrasmussen@google.com,shakeel.butt@linux.dev,akpm@linux-foundation.org From: Andrew Morton Subject: + memcg-remove-mem_cgroup-soft_limit.patch added to mm-new branch Message-Id: <20260829024402.3EFF21F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: memcg: remove mem_cgroup->soft_limit has been added to the -mm mm-new branch. Its filename is memcg-remove-mem_cgroup-soft_limit.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/memcg-remove-mem_cgroup-soft_limit.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Shakeel Butt 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 Acked-by: Michal Hocko Acked-by: Lorenzo Stoakes (ARM) Cc: Axel Rasmussen Cc: Barry Song Cc: David Hildenbrand Cc: Johannes Weiner Cc: Kairui Song Cc: Muchun Song Cc: Roman Gushchin Cc: T.J. Mercier Signed-off-by: Andrew Morton --- 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 @@ -4241,7 +4241,6 @@ 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); @@ -4448,7 +4447,6 @@ 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-clear-flushing_cached_charge-on-cpu-offline.patch memcg-trim-the-per-cpu-charge-stock-instead-of-draining-it.patch memcg-remove-v1-soft-limit-reclaim.patch memcg-remove-mem_cgroup_shrink_node.patch memcg-remove-the-soft-limit-reclaim-tracepoints.patch memcg-remove-the-soft-limit-rbtree.patch memcg-remove-lru_gen_soft_reclaim.patch memcg-remove-the-per-node-soft-limit-tree-fields.patch memcg-remove-mem_cgroup-soft_limit.patch memcg-simplify-v1-event-ratelimiting.patch