Re: [PATCH] ovpn: Replace use of system_wq with system_percpu_wq

From: Antonio Quartulli

Date: Wed Feb 04 2026 - 09:10:54 EST


On 24/12/2025 16:50, Marco Crivellari wrote:
This patch continues the effort to refactor workqueue APIs, which has begun
with the changes introducing new workqueues and a new alloc_workqueue flag:

commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")

The point of the refactoring is to eventually alter the default behavior of
workqueues to become unbound by default so that their workload placement is
optimized by the scheduler.

Before that to happen after a careful review and conversion of each individual
case, workqueue users must be converted to the better named new workqueues with
no intended behaviour changes:

system_wq -> system_percpu_wq
system_unbound_wq -> system_dfl_wq

This way the old obsolete workqueues (system_wq, system_unbound_wq) can be
removed in the future.

Suggested-by: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Marco Crivellari <marco.crivellari@xxxxxxxx>

Hello Marco and sorry for the delay.
The patch looks good.

Acked-by: Antonio Quartulli <antonio@xxxxxxxxxxx>

Jakub, do you mind picking this up directly in your tree?

Thanks a lot.

Regards,

--
Antonio Quartulli
OpenVPN Inc.