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From: Qiliang Yuan <qiliang.yuan@linux.dev>
To: Vlastimil Babka <vbabka@kernel.org>,
	Johannes Weiner <hannes@cmpxchg.org>
Cc: Qiliang Yuan <qiliang.yuan@linux.dev>,
	Andrew Morton <akpm@linux-foundation.org>,
	Kairui Song <kasong@tencent.com>, Qi Zheng <qi.zheng@linux.dev>,
	Shakeel Butt <shakeel.butt@linux.dev>,
	Barry Song <baohua@kernel.org>,
	Axel Rasmussen <axelrasmussen@google.com>,
	Yuanchu Xie <yuanchu@google.com>, Wei Xu <weixugc@google.com>,
	Baoquan He <baoquan.he@linux.dev>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	David Hildenbrand <david@kernel.org>,
	Lorenzo Stoakes <ljs@kernel.org>,
	"Liam R. Howlett" <liam@infradead.org>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Brendan Jackman <brendan.jackman@linux.dev>,
	Zi Yan <ziy@nvidia.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linux-trace-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/2] mm/compaction: stop repeating failed async compaction on every THP fault
Date: Tue, 10 Nov 2026 08:58:24 -0500	[thread overview]
Message-ID: <20261110135824.3264904-1-qiliang.yuan@linux.dev> (raw)
In-Reply-To: <20261102-bug-mm-thp-async-compact-defer-v2-0-b407e974db54@gmail.com>

Hi Vlastimil, Johannes,

Could you share your view on this series when you have time?

One known issue in v2: the cc->mode != MIGRATE_ASYNC check added to
2/2 blocks clearing stale skip hints once sync compaction is fully
deferred, so local THP may not recover after the pins are released.
I'd drop it in v3, but won't send one before hearing from you.

Thanks,
Qiliang

  parent reply	other threads:[~2026-11-10 13:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-02  6:01 Qiliang Yuan
2026-11-02  6:01 ` [PATCH v2 1/2] mm/compaction: keep compaction deferral state per migration mode Qiliang Yuan
2026-11-02  6:01 ` [PATCH v2 2/2] mm/compaction: defer failed async direct compaction Qiliang Yuan
2026-11-10 14:42   ` Qiliang Yuan
2026-11-02  9:23 ` [PATCH v2 0/2] mm/compaction: stop repeating failed async compaction on every THP fault Lorenzo Stoakes (ARM)
2026-11-10 13:58 ` Qiliang Yuan [this message]
2026-11-10 14:13   ` Vlastimil Babka (SUSE)
2026-11-10 15:39     ` Qiliang Yuan

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