From: Shakeel Butt <shakeel.butt@linux.dev>
To: Qi Zheng <qi.zheng@linux.dev>
Cc: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com,
roman.gushchin@linux.dev, muchun.song@linux.dev,
david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com,
harry.yoo@oracle.com, yosry.ahmed@linux.dev,
imran.f.khan@oracle.com, kamalesh.babulal@oracle.com,
axelrasmussen@google.com, yuanchu@google.com,
weixugc@google.com, chenridong@huaweicloud.com, mkoutny@suse.com,
akpm@linux-foundation.org, hamzamahfooz@linux.microsoft.com,
apais@linux.microsoft.com, lance.yang@linux.dev, bhe@redhat.com,
usamaarif642@gmail.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
Qi Zheng <zhengqi.arch@bytedance.com>
Subject: Re: [PATCH v5 update 30/32] mm: memcontrol: convert objcg to be per-memcg per-node type
Date: Thu, 26 Feb 2026 12:05:51 -0800 [thread overview]
Message-ID: <aaCmpSNRZU1wIYxq@linux.dev> (raw)
In-Reply-To: <20260225094456.74145-1-qi.zheng@linux.dev>
On Wed, Feb 25, 2026 at 05:44:56PM +0800, Qi Zheng wrote:
> From: Qi Zheng <zhengqi.arch@bytedance.com>
>
> Convert objcg to be per-memcg per-node type, so that when reparent LRU
> folios later, we can hold the lru lock at the node level, thus avoiding
> holding too many lru locks at once.
>
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
> ---
> changlog:
> - fix a missing root_obj_cgroup conversion and completely delete
> root_obj_cgroup.
>
After this patch, do we care that page/folio/slab points to the objcg of the
same node as them for a given memcg?
next prev parent reply other threads:[~2026-02-26 20:06 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-25 7:48 [PATCH v5 00/32] Eliminate Dying Memory Cgroup Qi Zheng
2026-02-25 7:48 ` [PATCH v5 01/32] mm: memcontrol: remove dead code of checking parent memory cgroup Qi Zheng
2026-02-25 7:48 ` [PATCH v5 02/32] mm: workingset: use folio_lruvec() in workingset_refault() Qi Zheng
2026-02-25 7:48 ` [PATCH v5 03/32] mm: rename unlock_page_lruvec_irq and its variants Qi Zheng
2026-02-25 7:48 ` [PATCH v5 04/32] mm: vmscan: prepare for the refactoring the move_folios_to_lru() Qi Zheng
2026-02-25 7:48 ` [PATCH v5 05/32] mm: vmscan: refactor move_folios_to_lru() Qi Zheng
2026-02-25 7:48 ` [PATCH v5 06/32] mm: memcontrol: allocate object cgroup for non-kmem case Qi Zheng
2026-02-25 7:48 ` [PATCH v5 07/32] mm: memcontrol: return root object cgroup for root memory cgroup Qi Zheng
2026-02-25 7:48 ` [PATCH v5 08/32] mm: memcontrol: prevent memory cgroup release in get_mem_cgroup_from_folio() Qi Zheng
2026-02-25 7:48 ` [PATCH v5 09/32] buffer: prevent memory cgroup release in folio_alloc_buffers() Qi Zheng
2026-02-25 7:48 ` [PATCH v5 10/32] writeback: prevent memory cgroup release in writeback module Qi Zheng
2026-02-25 7:48 ` [PATCH v5 11/32] mm: memcontrol: prevent memory cgroup release in count_memcg_folio_events() Qi Zheng
2026-02-25 7:48 ` [PATCH v5 12/32] mm: page_io: prevent memory cgroup release in page_io module Qi Zheng
2026-02-25 7:52 ` [PATCH v5 13/32] mm: migrate: prevent memory cgroup release in folio_migrate_mapping() Qi Zheng
2026-02-25 7:52 ` [PATCH v5 14/32] mm: mglru: prevent memory cgroup release in mglru Qi Zheng
2026-02-25 7:52 ` [PATCH v5 15/32] mm: memcontrol: prevent memory cgroup release in mem_cgroup_swap_full() Qi Zheng
2026-02-25 7:52 ` [PATCH v5 16/32] mm: workingset: prevent memory cgroup release in lru_gen_eviction() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 17/32] mm: thp: prevent memory cgroup release in folio_split_queue_lock{_irqsave}() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 18/32] mm: zswap: prevent memory cgroup release in zswap_compress() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 19/32] mm: workingset: prevent lruvec release in workingset_refault() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 20/32] mm: zswap: prevent lruvec release in zswap_folio_swapin() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 21/32] mm: swap: prevent lruvec release in lru_gen_clear_refs() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 22/32] mm: workingset: prevent lruvec release in workingset_activation() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 23/32] mm: do not open-code lruvec lock Qi Zheng
2026-02-25 7:53 ` [PATCH v5 24/32] mm: memcontrol: prepare for reparenting LRU pages for " Qi Zheng
2026-02-25 7:53 ` [PATCH v5 25/32] mm: vmscan: prepare for reparenting traditional LRU folios Qi Zheng
2026-02-25 7:53 ` [PATCH v5 26/32] mm: vmscan: prepare for reparenting MGLRU folios Qi Zheng
2026-02-25 7:53 ` [PATCH v5 27/32] mm: memcontrol: refactor memcg_reparent_objcgs() Qi Zheng
2026-02-25 7:53 ` [PATCH v5 28/32] mm: workingset: use lruvec_lru_size() to get the number of lru pages Qi Zheng
2026-02-25 7:53 ` [PATCH v5 29/32] mm: memcontrol: prepare for reparenting non-hierarchical stats Qi Zheng
2026-02-25 14:58 ` Yosry Ahmed
2026-02-26 0:25 ` Shakeel Butt
2026-02-26 6:42 ` Qi Zheng
2026-02-26 15:16 ` Yosry Ahmed
2026-02-26 17:02 ` Shakeel Butt
2026-02-26 17:13 ` Yosry Ahmed
2026-02-27 3:11 ` Qi Zheng
2026-02-27 6:05 ` Qi Zheng
2026-02-27 18:18 ` Yosry Ahmed
2026-02-28 3:40 ` Qi Zheng
2026-02-26 6:41 ` Qi Zheng
2026-02-26 1:41 ` Shakeel Butt
2026-02-26 6:45 ` Qi Zheng
2026-02-28 7:25 ` [PATCH v5 update " Qi Zheng
2026-02-28 19:08 ` Andrew Morton
2026-03-02 2:30 ` Qi Zheng
2026-03-02 15:53 ` Yosry Ahmed
2026-03-03 3:08 ` Qi Zheng
2026-03-03 14:56 ` Yosry Ahmed
2026-03-04 3:23 ` Qi Zheng
2026-03-04 7:56 ` Qi Zheng
2026-03-04 13:57 ` Yosry Ahmed
2026-03-04 22:03 ` Andrew Morton
2026-03-05 0:18 ` Yosry Ahmed
2026-03-05 2:51 ` Qi Zheng
2026-03-04 22:06 ` Andrew Morton
2026-03-05 2:51 ` Qi Zheng
2026-02-25 7:53 ` [PATCH v5 30/32] mm: memcontrol: convert objcg to be per-memcg per-node type Qi Zheng
2026-02-25 9:44 ` [PATCH v5 update " Qi Zheng
2026-02-26 2:27 ` Shakeel Butt
2026-02-26 6:47 ` Qi Zheng
2026-03-05 9:10 ` Qi Zheng
2026-02-26 20:05 ` Shakeel Butt [this message]
2026-02-27 6:34 ` Qi Zheng
2026-02-25 7:53 ` [PATCH v5 31/32] mm: memcontrol: eliminate the problem of dying memory cgroup for LRU folios Qi Zheng
2026-02-26 2:40 ` Shakeel Butt
2026-02-25 7:53 ` [PATCH v5 32/32] mm: lru: add VM_WARN_ON_ONCE_FOLIO to lru maintenance helpers Qi Zheng
2026-02-25 21:57 ` [PATCH v5 00/32] Eliminate Dying Memory Cgroup Andrew Morton
2026-02-27 0:24 ` SeongJae Park
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