Commit cd21701c authored by Dani Liberman's avatar Dani Liberman Committed by Oded Gabbay
Browse files

habanalabs: use single threaded WQ for event handling 



Creating event queue workqueue using alloc_workqueue made it run in
multi threaded mode, which caused parallel dumping of events as well as
parallel events notifying to user, causing logs with multiple
events to be out of order.

Fixed by creating event queue workqueue as single threaded work queue.

Signed-off-by: default avatarDani Liberman <dliberman@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent cb5fb665

drivers/misc/habanalabs/common/device.c

+1 −1
Original line number Diff line number Diff line
@@ -787,7 +787,7 @@ static int device_early_init(struct hl_device *hdev) 
		}

	}



	hdev->eq_wq = alloc_workqueue("hl-events", WQ_UNBOUND, 0);

	hdev->eq_wq = create_singlethread_workqueue("hl-events");

	if (hdev->eq_wq == NULL) {

		dev_err(hdev->dev, "Failed to allocate EQ workqueue\n");

		rc = -ENOMEM;