From: Marco Crivellari Date: Thu, 30 Oct 2025 16:38:39 +0000 (+0100) Subject: cxl/pci: replace use of system_wq with system_percpu_wq X-Git-Tag: v6.19-rc1~134^2~6^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=952e9057e66c17a9718232664368ffdaca468f93;p=thirdparty%2Fkernel%2Flinux.git cxl/pci: replace use of system_wq with system_percpu_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_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. See 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") for cause of changes. [ dj: Add reference to commit that initiated the change. ] Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Acked-by: Davidlohr Bueso Reviewed-by: Ira Weiny Reviewed-by: Dave Jiang > --- Link: https://patch.msgid.link/20251030163839.307752-1-marco.crivellari@suse.com Signed-off-by: Dave Jiang --- diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c index bd100ac31672d..0be4e508affe7 100644 --- a/drivers/cxl/pci.c +++ b/drivers/cxl/pci.c @@ -136,7 +136,7 @@ static irqreturn_t cxl_pci_mbox_irq(int irq, void *id) if (opcode == CXL_MBOX_OP_SANITIZE) { mutex_lock(&cxl_mbox->mbox_mutex); if (mds->security.sanitize_node) - mod_delayed_work(system_wq, &mds->security.poll_dwork, 0); + mod_delayed_work(system_percpu_wq, &mds->security.poll_dwork, 0); mutex_unlock(&cxl_mbox->mbox_mutex); } else { /* short-circuit the wait in __cxl_pci_mbox_send_cmd() */