On Tue, 2016-08-30 at 17:14:51 UTC, Bhaktipriya Shridhar wrote: > The workqueue "ps3av->wq" queues a single work item &ps3av->work and hence > doesn't require ordering. It is involved in waking up ps3avd to do the > video mode setting and hence it's not being used on a memory reclaim > path. Hence, it has been converted to use system_wq. > > System workqueues have been able to handle high level of concurrency > for a long time now and hence it's not required to have a singlethreaded > workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue > created with create_singlethread_workqueue(), system_wq allows multiple > work items to overlap executions even on the same CPU; however, a > per-cpu workqueue doesn't have any CPU locality or global ordering > guarantee unless the target CPU is explicitly specified and thus the > increase of local concurrency shouldn't make any difference. > > The work item has been flushed in ps3av_remove to ensure that > there are no pending tasks while disconnecting the driver. > > Signed-off-by: Bhaktipriya Shridhar <bhaktipriy...@gmail.com> > Acked-by: Tejun Heo <t...@kernel.org>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/f0200c02883367f0eb6c9e2f19a8ab cheers
