Re: [PATCH v3 1/2] rust: workqueue: restrict delayed work to global wqs

[Tejun Heo]

On Fri, Feb 27, 2026 at 02:53:20PM +0000, Alice Ryhl wrote:
> When a workqueue is shut down, delayed work that is pending but not
> scheduled does not get properly cleaned up, so it's not safe to use
> `enqueue_delayed` on a workqueue that might be destroyed. To fix this,
> restricted `enqueue_delayed` to static queues.

C being C, we've been just chalking this up as "user error", but please feel
free to add per-workqueue percpu ref for pending delayed work items if
that'd help. That shouldn't be noticeably expensive and should help
straighten this out for rust hopefully.

Thanks.

-- 
tejun