Re: [PATCH v2] drm/radeon: Remove deprecated create_singlethread_workqueue
From: Alex Deucher
Date: Thu Jul 28 2016 - 12:15:09 EST
On Mon, Jul 18, 2016 at 8:48 PM, Tejun Heo <tj@xxxxxxxxxx> wrote:
> 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>
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