# Re: \[PATCH\] workqueue: doc: Call out the non-reentrance conditions

- From: Tejun Heo \<tj@kernel.org\>
- Date: 2021-10-20 16:18:25 
- List: linux-doc
- Page: https://ratatoskr.run/linux-doc/2021/10/1548536
- Thread: https://ratatoskr.run/linux-doc/2021/10/1544786/t.md

```text
On Wed, Oct 20, 2021 at 01:40:21PM +0800, Boqun Feng wrote:
> * A work item instance will not be processed by multiple workers at the
>   same time, i.e. it's non-reentrant, so requeuing the same instance of
>   a work item is safe and not racy.  Operations considered as changing
>   the work item to a different instance are: 1) change the work
>   function, 2) queue the work item to a different workqueue, or 3)
>   reinitiate the work item.  The non-reentrance guarantee doesn't hold
>   for different work item instances.

Yeah, I prefer it to be described this way but it's not a strong opinion.
Looks good to me either way.

Thanks.

-- 
tejun
```