From: Marco Crivellari Date: Thu, 30 Oct 2025 15:47:35 +0000 (+0100) Subject: ACPI: scan: replace use of system_unbound_wq with system_dfl_wq X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0327c504e274538950abdf5a60f867b73ecf2a54;p=thirdparty%2Fkernel%2Flinux.git ACPI: scan: replace use of system_unbound_wq with system_dfl_wq Currently if a user enqueue 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. system_unbound_wq should be the default workqueue so as not to enforce locality constraints for random work whenever it's not required. Adding system_dfl_wq to encourage its use when unbound work should be used. The old system_unbound_wq will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Link: https://patch.msgid.link/20251030154739.262582-2-marco.crivellari@suse.com Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index ef16d58b29499..e0c0b5a50d264 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2397,7 +2397,7 @@ static bool acpi_scan_clear_dep_queue(struct acpi_device *adev) * initial enumeration of devices is complete, put it into the unbound * workqueue. */ - queue_work(system_unbound_wq, &cdw->work); + queue_work(system_dfl_wq, &cdw->work); return true; }