From: Muchun Song <muchun.song@linux.dev>
To: Qi Zheng <qi.zheng@linux.dev>
Cc: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com,
roman.gushchin@linux.dev, shakeel.butt@linux.dev,
david@redhat.com, lorenzo.stoakes@oracle.com, ziy@nvidia.com,
harry.yoo@oracle.com, baolin.wang@linux.alibaba.com,
Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com,
dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
Qi Zheng <zhengqi.arch@bytedance.com>
Subject: Re: [PATCH v4 4/4] mm: thp: reparent the split queue during memcg offline
Date: Sat, 4 Oct 2025 15:52:46 +0800 [thread overview]
Message-ID: <F929DFAE-4A4F-41CE-8FFC-A62520FFD7CC@linux.dev> (raw)
In-Reply-To: <a01588414c9911f2bc912fa87f181aa5620d89d4.1759510072.git.zhengqi.arch@bytedance.com>
> On Oct 4, 2025, at 00:53, Qi Zheng <qi.zheng@linux.dev> wrote:
>
> From: Qi Zheng <zhengqi.arch@bytedance.com>
>
> Similar to list_lru, the split queue is relatively independent and does
> not need to be reparented along with objcg and LRU folios (holding
> objcg lock and lru lock). So let's apply the similar mechanism as list_lru
> to reparent the split queue separately when memcg is offine.
>
> This is also a preparation for reparenting LRU folios.
>
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Thanks.
next prev parent reply other threads:[~2025-10-04 7:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-03 16:53 [PATCH v4 0/4] reparent the THP split queue Qi Zheng
2025-10-03 16:53 ` [PATCH v4 1/4] mm: thp: replace folio_memcg() with folio_memcg_charged() Qi Zheng
2025-10-03 16:53 ` [PATCH v4 2/4] mm: thp: introduce folio_split_queue_lock and its variants Qi Zheng
2025-10-03 16:53 ` [PATCH v4 3/4] mm: thp: use folio_batch to handle THP splitting in deferred_split_scan() Qi Zheng
2025-10-06 23:16 ` Shakeel Butt
2025-10-13 7:28 ` Qi Zheng
2025-10-14 14:25 ` kernel test robot
2025-10-03 16:53 ` [PATCH v4 4/4] mm: thp: reparent the split queue during memcg offline Qi Zheng
2025-10-03 16:58 ` Zi Yan
2025-10-04 7:52 ` Muchun Song [this message]
2025-10-06 6:46 ` David Hildenbrand
2025-10-07 17:56 ` Shakeel Butt
2025-10-13 7:29 ` Qi Zheng
2025-10-10 16:25 ` [PATCH v4 0/4] reparent the THP split queue Zi Yan
2025-10-11 0:51 ` Qi Zheng
2025-10-11 18:28 ` Andrew Morton
2025-10-13 7:23 ` Qi Zheng
2025-10-13 16:37 ` Zi Yan
2025-10-14 6:49 ` Qi Zheng
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