Re: [PATCH v2] drm/radeon: Remove deprecated create_singlethread_workqueue
From: Tejun Heo
Date: Mon Jul 18 2016 - 20:48:30 EST
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@xxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>