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

On 02.07.2016 22:46, Tejun Heo wrote:

On Sat, Jul 02, 2016 at 04:33:50PM +0530, Bhaktipriya Shridhar wrote:

...

alloc_workqueue replaces deprecated create_singlethread_workqueue().

A dedicated workqueue has been used since work items need to be flushed as a group rather than individually.

Since the flip_queue workqueue is involved in page-flipping and is not being used on a memory reclaim path, WQ_MEM_RECLAIM has not been set.

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

What are the involved work items?

drivers/gpu/drm/radeon/radeon_display.c:radeon_flip_work_func()

Is it safe to run them concurrently?

Concurrently with what exactly?