workqueue: Add warnings and ensure one among WQ_PERCPU or WQ_UNBOUND is present

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Currently there are no checks in order to enforce the use of one between
WQ_PERCPU or WQ_UNBOUND.

So act as following:
- if neither of them is present, set WQ_PERCPU
- if both are present, remove WQ_PERCPU

Along with this change, WARN_ONCE(), so that the code still uses both or
neither of them, can be changed.

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 15:06:40 +02:00 • committed by Tejun Heo

parent 64d8eae3f8

commit 21c05ca88a

1 changed files with 18 additions and 1 deletions

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kernel/workqueue.c

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