On Wed, Sep 29, 2021 at 03:00:46PM +0800, Po-Wen Kao wrote: > Driver occasionally execute allocated request directly without > dispatching to block layer, thus request never appears in tags->rqs. > To allow driver to iterate through requests in static_rqs, a new > interface blk_mq_drv_tagset_busy_iter() is introduced. Don't do that. All requests must be dispatched to blk-mq. Let's not even get started on these hacks that will make our life painful forever.