On Fri, 2017-09-22 at 06:06 +0800, Ming Lei wrote:
> On Thu, Sep 21, 2017 at 02:22:55PM -0700, Bart Van Assche wrote:
> > + } else {
> > scsi_run_queue(q);
> > + while (atomic_read(&sdev->device_busy)) {
> > + msleep_interruptible(200);
> > + scsi_run_queue(q);
> > + }
>
> Are you sure only blk-mq need to drain queue? We need
> to do that for block legacy too.
The code above your comment drains the queue for the legacy block layer.
Bart.
