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SubjectRe: [PATCH wq/for-6.9 v5 0/4] workqueue: Enable unbound cpumask update on ordered workqueues
On Thu, Feb 08, 2024 at 11:10:10AM -0500, Waiman Long wrote:
> v5:
> - [v4] https://lore.kernel.org/lkml/20240207011911.975608-1-longman@redhat.com/
> - Streamline patch 2 by simplifying unplug_oldest_pwq() and calling it
> only in pwq_release_workfn().
>
> v4:
> - [v3] https://lore.kernel.org/lkml/20240205194602.871505-1-longman@redhat.com/
> - Rebase on the latest for-6.9 branch again & discard the use of
> __WQ_ORDERED_EXPLICIT and resetting of __WQ_ORDERED.
> - Add a new patch 1 to change the ordering of pwq's in wq->pwqs from
> oldest to newest.
> - Change the terminalogy from freeze/thaw to plug/unplug.
> - Allow more than 2 pwq's in wq->pwqs of ordered workqueue but only the
> oldest one is unplugged. This eliminates the need to wait for
> the draining of extra pwq in workqueue_apply_unbound_cpumask().
>
> v3:
> - [v2] https://lore.kernel.org/lkml/20240203154334.791910-1-longman@redhat.com/
> - Drop patch 1 as it has been merged into the for-6.9 branch.
> - Use rcu_access_pointer() to access wq->dfl_pwq.
> - Use RCU protection instead of acquiring wq->mutex in
> apply_wqattrs_cleanup().

Applied the series w/ (w/ the updated second patch) to wq/for-6.9.

Thanks for working on this. It's really great that this got solved finally.

--
tejun

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