Re: [PATCH v2] workqueue: rust: add delayed work items

[Tejun Heo <tj@kernel.org>]

On Fri, Jun 27, 2025 at 09:38:42AM +0000, Alice Ryhl wrote:
> This patch is being sent for use in the various Rust GPU drivers that
> are under development. It provides the additional feature of work items
> that are executed after a delay.
> 
> The design of the existing workqueue is rather extensible, as most of
> the logic is reused for delayed work items even though a different work
> item type is required. The new logic consists of:
> 
> * A new DelayedWork struct that wraps struct delayed_work.
> * A new impl_has_delayed_work! macro that provides adjusted versions of
>   the container_of logic, that is suitable with delayed work items.
> * A `enqueue_delayed` method that can enqueue a delayed work item.
> 
> This patch does *not* rely on the fact that `struct delayed_work`
> contains `struct work_struct` at offset zero. It will continue to work
> even if the layout is changed to hold the `work` field at a different
> offset.
> 
> Please see the example introduced at the top of the file for example
> usage of delayed work items.
> 
> Signed-off-by: Alice Ryhl <aliceryhl@google.com>

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

-- 
tejun