On 8/5/21 6:46 AM, Yu Kuai wrote: > If queue is dying while iolatency_set_limit() is in progress, > blk_get_queue() won't increment the refcount of the queue. However, > blk_put_queue() will still decrement the refcount later, which will > cause the refcout to be unbalanced. > > Thus error out in such case to fix the problem. Applied, thanks. -- Jens Axboe