Re: [PATCH] workqueue: rust: add creation of workqueues

[Alice Ryhl]

On Thu, Apr 17, 2025 at 9:28 AM Tejun Heo <tj@xxxxxxxxxx> wrote:
>
> On Thu, Apr 17, 2025 at 09:22:40AM +0200, Philipp Stanner wrote:
> > I assume you, ultimately, mean that the list of delayed_work's would be
> > accessible through workqueue_struct, correct?
> >
> > And then destroy_workqueue() could loop over all of them with
> > cancel_delayed_work_sync()?
>
> Yeap, I was thinking flush_delayed_work() but maybe
> cancel_delayed_work_sync() is better.

But doesn't that have a cleanup problem? If the work item owns an
allocation or a refcount that's cleared by the work item's run
function, then using cancel_delayed_work_sync() will fail to clean
that up. Whereas flush_delayed_work() avoids this problem.

Alice