Re: [PATCH] scsi: storvsc: Allow only one remove lun work item to be issued per lun

[Cathy Avery]

On 04/15/2017 10:06 AM, Christoph Hellwig wrote:
> Just add a singlethreaded workqueue for storvsc_handle_error and you'll
> get serialization for all error handling for free.

The problem I am seeing is that many work items can be queued up for the 
same lun before it goes away. The single threaded queue would have to allow
for only a queue of one and no more. Either that or each work item for a 
particular lun must have the same memory address so it gets
rejected if it you try to queue a remove to the same lun twice.

Maybe I am not understanding your suggestion correctly.

Thanks,

Cathy