From: Tejun Heo <tj@kernel.org>
To: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: linux-kernel@vger.kernel.org, ying chen <yc1082463@gmail.com>,
Lai Jiangshan <jiangshan.ljs@antgroup.com>
Subject: Re: [PATCH V3 6/7] workqueue: Limit number of processed works in rescuer per turn
Date: Sat, 22 Nov 2025 04:26:56 -1000 [thread overview]
Message-ID: <aSHIMNJuyqBvqRb9@slm.duckdns.org> (raw)
In-Reply-To: <CAJhGHyDhQ4Ob7x5N6p26B9rDvLnifH5aawLgVneB1TZOAFKZNQ@mail.gmail.com>
Hello,
On Sat, Nov 22, 2025 at 02:22:12PM +0800, Lai Jiangshan wrote:
> The cursor is per PWQ. When the rescuer come back to this pool next time,
> it can only handle the PWQ belonging to its wq, which is A, and it will search
> from A3 and process A3 instead of searching from B1 if the cursor is reset.
Oh yeah, you're right. I was thinking that the cursor was shared across pwqs
for some reason.
Thanks.
--
tejun
next prev parent reply other threads:[~2025-11-22 14:26 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-21 14:57 [PATCH V3 0/7] workqueue: Factor the way to assign rescuer work Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 1/7] workqueue: Factor out assign_rescuer_work() Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 2/7] workqueue: Only assign rescuer work when really needed Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 3/7] workqueue: Don't rely on wq->rescuer to stop rescuer Lai Jiangshan
2025-11-21 14:57 ` [PATCH V3 4/7] workqueue: Loop over in rescuer until all its work is done Lai Jiangshan
2025-11-21 19:30 ` Tejun Heo
2025-11-21 14:57 ` [PATCH V3 5/7] workqueue: Process rescuer work items one-by-one using a cursor Lai Jiangshan
2025-11-21 19:05 ` Tejun Heo
2025-11-21 14:57 ` [PATCH V3 6/7] workqueue: Limit number of processed works in rescuer per turn Lai Jiangshan
2025-11-21 19:28 ` Tejun Heo
2025-11-22 6:22 ` Lai Jiangshan
2025-11-22 14:26 ` Tejun Heo [this message]
2025-11-21 14:57 ` [PATCH V3 7/7] workqueue: Process extra works in rescuer when there are no more to rescue Lai Jiangshan
2025-11-21 19:29 ` Tejun Heo
2025-11-22 7:07 ` Lai Jiangshan
2025-11-22 14:31 ` Tejun Heo
2025-11-21 19:57 ` [PATCH V3 0/7] workqueue: Factor the way to assign rescuer work Tejun Heo
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