Re: [Xen-devel] [PATCH] xen: xenbus: Remove create_workqueue

[Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx>]

Sorry about that. Will make the corrections in v2.

Thanks,
Bhaktipriya


On Tue, May 31, 2016 at 9:48 PM, David Vrabel <david.vrabel@xxxxxxxxxx> wrote:
> On 27/05/16 19:50, Bhaktipriya Shridhar wrote:
>> With concurrency managed workqueues, use of dedicated workqueues can be
>> replaced by using system_wq. Drop xenbus_frontend_wq by using system_wq.
>>
>> Since there is only a single work item, increase of concurrency level by
>> switching to system_wq should not break anything.
>>
>> Since the work item could be pending and the code expects it to run
>> once scheduled, flush_work() has been used in xenbus_dev_suspend()
>
> This says flush_work() but...
>>
>> Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@xxxxxxxxx>
>> ---
>>  drivers/xen/xenbus/xenbus_probe.c          |  2 ++
>>  drivers/xen/xenbus/xenbus_probe_frontend.c | 15 +--------------
>>  2 files changed, 3 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/xen/xenbus/xenbus_probe.c 
>> b/drivers/xen/xenbus/xenbus_probe.c
>> index 33a31cf..bc97019 100644
>> --- a/drivers/xen/xenbus/xenbus_probe.c
>> +++ b/drivers/xen/xenbus/xenbus_probe.c
>> @@ -592,6 +592,8 @@ int xenbus_dev_suspend(struct device *dev)
>>
>>       DPRINTK("%s", xdev->nodename);
>>
>> +     cancel_work_sync(&xdev->work);
>
> ...cancel_work_sync() is called here.
>
> David

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