Re: [PATCH v2] drm/radeon: Remove deprecated create_singlethread_workqueue

On Sat, Jul 16, 2016 at 05:00:44PM +0530, Bhaktipriya Shridhar wrote:

alloc_workqueue replaces deprecated create_singlethread_workqueue().

Each hardware CRTC has a single flip work queue. When a radeon_flip_work_func item is queued, it needs to be executed ASAP because even a slight delay may cause the flip to be delayed by one refresh cycle.

Hence, a dedicated workqueue with WQ_HIGHPRI set, has been used here since a delay can cause the outcome to miss the refresh cycle.

Since there are only a fixed number of work items, explicit concurrency limit is unnecessary here.

Signed-off-by: Bhaktipriya Shridhar bhaktipriya96@gmail.com

Acked-by: Tejun Heo tj@kernel.org

Thanks.