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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.


  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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