>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 2010-4-23 16:54 >>>
>> Moving the device destruction a little ahead of killing qemu-dm would
>> triger blktapctl thread send CTRMSG_CLOSE to "qemu-dm" before it exit.
>> And then, qemu-dm would notify backend driver to release resouce by
>> calling release() of driver through closing the opened device file of
>> "/dev/xen/blktapN"
>
> Even though Keir already applied your patch, I continue to disagree:
>>I agreed with you and Jim, and subsequently reverted it.
>> K.
Ok, fine, I'll rewrite the patch and send again soon.