workqueue: Add warnings and fallback if system_{unbound}_wq is used

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Currently many users transitioned already to the new introduced workqueue
(system_percpu_wq, system_dfl_wq), but there are new users who still use the
older system_wq and system_unbound_wq.

This change try to push this transition forward, by warning whether the old
workqueues are used.

Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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Marco Crivellari 2026-05-29 15:06:39 +02:00 • committed by Tejun Heo

parent 611583a76e

commit 64d8eae3f8

2 changed files with 11 additions and 2 deletions

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1

include/linux/workqueue.h

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12

kernel/workqueue.c

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