Re: [PATCH v2] xen: xenbus: Remove create_workqueue

[Bhaktipriya Shridhar]

Ping!
Thanks,
Bhaktipriya


On Tue, May 31, 2016 at 10:59 PM, Tejun Heo <tj@xxxxxxxxxx> wrote:
> On Tue, May 31, 2016 at 10:26:30PM +0530, Bhaktipriya Shridhar wrote:
>> System workqueues have been able to handle high level of concurrency
>> for a long time now and there's no reason to use dedicated workqueues
>> just to gain concurrency.  Replace dedicated xenbus_frontend_wq with the
>> use of system_wq.
>>
>> Unlike a dedicated per-cpu workqueue created with create_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 guarantees unless the target CPU is
>> explicitly specified and the increase of local concurrency shouldn't
>> make any difference.
>>
>> In this case, there is only a single work item, increase of concurrency
>> level by switching to system_wq should not make any difference.
>>
>> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx>
>
> Acked-by: Tejun Heo <tj@xxxxxxxxxx>
>
> Thanks.
>
> --
> tejun