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leds: trigger: Replace use of system_wq() with system_percpu_wq()

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Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.

This lack of consistency cannot be addressed without refactoring the API.

This patch continues the effort to refactor worqueue APIs, which has begun
with the change 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")

system_wq should be the per-cpu workqueue, yet in this name nothing makes
that clear, so replace system_wq with system_percpu_wq.

The old wq (system_wq) will be kept for a few release cycles.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://patch.msgid.link/20251105111924.141555-1-marco.crivellari@suse.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Marco Crivellari 2025-11-05 12:19:24 +01:00 committed by Lee Jones
parent 92f4b016dc
commit 88aa23c128
1 changed files with 1 additions and 1 deletions
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drivers/leds/trigger/ledtrig-input-events.c
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@ -66,7 +66,7 @@ static void input_events_event(struct input_handle *handle, unsigned int type,
spin_unlock_irqrestore(&data->lock, flags);
mod_delayed_work(system_wq, &data->work, led_off_delay);
mod_delayed_work(system_percpu_wq, &data->work, led_off_delay);
}
static int input_events_connect(struct input_handler *handler, struct input_dev *dev,