From: Marco Crivellari Date: Wed, 5 Nov 2025 15:08:26 +0000 (+0100) Subject: nvdimm: replace use of system_wq with system_percpu_wq X-Git-Tag: v6.19-rc1~85^2~2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e898a9a992293eea8df11c8bb6fe120df6f8e6f;p=thirdparty%2Fkernel%2Flinux.git nvdimm: replace use of system_wq with system_percpu_wq 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") Replace system_wq with system_percpu_wq, keeping the same old behavior. The old wq (system_wq) will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Reviewed-by: Dave Jiang > --- Link: https://patch.msgid.link/20251105150826.248673-1-marco.crivellari@suse.com Signed-off-by: Ira Weiny --- diff --git a/drivers/nvdimm/security.c b/drivers/nvdimm/security.c index 4adce8c388704..e41f6951ca0f6 100644 --- a/drivers/nvdimm/security.c +++ b/drivers/nvdimm/security.c @@ -424,7 +424,7 @@ static int security_overwrite(struct nvdimm *nvdimm, unsigned int keyid) * query. */ get_device(dev); - queue_delayed_work(system_wq, &nvdimm->dwork, 0); + queue_delayed_work(system_percpu_wq, &nvdimm->dwork, 0); } return rc; @@ -457,7 +457,7 @@ static void __nvdimm_security_overwrite_query(struct nvdimm *nvdimm) /* setup delayed work again */ tmo += 10; - queue_delayed_work(system_wq, &nvdimm->dwork, tmo * HZ); + queue_delayed_work(system_percpu_wq, &nvdimm->dwork, tmo * HZ); nvdimm->sec.overwrite_tmo = min(15U * 60U, tmo); return; }