[PATCH 2/3] drm/probe-helper: replace use of system_wq with system_percpu_wq

Marco Crivellari posted 3 patches 3 months, 1 week ago
There is a newer version of this series
[PATCH 2/3] drm/probe-helper: replace use of system_wq with system_percpu_wq
Posted by Marco Crivellari 3 months, 1 week ago
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.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
---
 drivers/gpu/drm/drm_probe_helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 09b12c30df69..d4dc8cb45bce 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -626,7 +626,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
 		 */
 		dev->mode_config.delayed_event = true;
 		if (dev->mode_config.poll_enabled)
-			mod_delayed_work(system_wq,
+			mod_delayed_work(system_percpu_wq,
 					 &dev->mode_config.output_poll_work,
 					 0);
 	}
-- 
2.51.0