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From: Andrew Morton <akpm@linux-foundation.org>
To: Breno Leitao <leitao@debian.org>
Cc: David Hildenbrand <david@kernel.org>,
	Lorenzo Stoakes <ljs@kernel.org>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	Vlastimil Babka <vbabka@kernel.org>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Christoph Lameter <cl@linux.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org, kas@kernel.org,
	shakeel.butt@linux.dev, usama.arif@linux.dev,
	kernel-team@meta.com
Subject: Re: [PATCH v2] mm/vmstat: fix vmstat_shepherd double-scheduling vmstat_update
Date: Thu, 9 Apr 2026 08:47:15 -0700	[thread overview]
Message-ID: <20260409084715.44d6ed4df7e092214cbefa90@linux-foundation.org> (raw)
In-Reply-To: <20260409-vmstat-v2-1-e9d9a6db08ad@debian.org>

On Thu, 09 Apr 2026 05:26:36 -0700 Breno Leitao <leitao@debian.org> wrote:

> vmstat_shepherd uses delayed_work_pending() to check whether
> vmstat_update is already scheduled for a given CPU before queuing it.
> However, delayed_work_pending() only tests WORK_STRUCT_PENDING_BIT,
> which is cleared the moment a worker thread picks up the work to
> execute it.

Thanks, I tentatively added this to the 7.1-rc1 queue, to upstream ~2
weeks hence. 


  reply	other threads:[~2026-04-09 15:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-09 12:26 Breno Leitao
2026-04-09 15:47 ` Andrew Morton [this message]
2026-04-09 17:01 ` Vlastimil Babka (SUSE)

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