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From: Tejun Heo <tj@kernel.org>
To: Alice Ryhl <aliceryhl@google.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>,
	Philipp Stanner <phasta@mailbox.org>,
	Danilo Krummrich <dakr@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] workqueue: flush all pending jobs in destroy_workqueue()
Date: Mon, 28 Apr 2025 08:30:07 -1000	[thread overview]
Message-ID: <aA_JLyCkdH9koy55@slm.duckdns.org> (raw)
In-Reply-To: <aA9LPkxMlXT_Dqg3@google.com>

Hello, Alice.

On Mon, Apr 28, 2025 at 09:32:46AM +0000, Alice Ryhl wrote:
> Isn't that just going to be equal to WORK_CPU_UNBOUND most of the time?
> 
> Though I guess we could use the values NR_CPUS .. 2*NR_CPUS-1 to
> remember which list is used when it is unbound.

I think there are multiple ways to go about it. Maybe we can
wq_select_unbound_cpu() earlier. Maybe we can encode the unboundedness in a
flag bit, or we can just add another 32bit field to delayed_work. Given the
layout, I don't think adding another 32bit field would change the actual
size of delayed_work on 64bit machines anyway.

Thanks.

-- 
tejun

      reply	other threads:[~2025-04-28 18:30 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-23 17:51 Alice Ryhl
2025-04-24 19:57 ` Tejun Heo
2025-04-25  9:33   ` Alice Ryhl
2025-04-25  9:57     ` Philipp Stanner
2025-04-25 19:25     ` Tejun Heo
2025-04-28  9:32       ` Alice Ryhl
2025-04-28 18:30         ` Tejun Heo [this message]

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