On Sat, Jul 02, 2016 at 04:13:55PM +0530, Bhaktipriya Shridhar wrote: > The workqueue "work_queues" enables hotplugging. > It has a single work item(&state->delayed_work_enable_hotplug) and hence > doesn't require ordering. Also, it is not being used on a memory > reclaim path. Hence, the singlethreaded workqueue has been replaced with > the use of 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. > > Work item has been sync cancelled in adv76xx_remove() to ensure > that there are no pending tasks while disconnecting the driver. > > Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
