On Tue, 2017-12-12 at 11:01 -0800, Tejun Heo wrote: > @@ -409,7 +407,7 @@ static void hctx_show_busy_rq(struct request *rq, void *data, bool reserved) > const struct show_busy_params *params = data; > > if (blk_mq_map_queue(rq->q, rq->mq_ctx->cpu) == params->hctx && > - test_bit(REQ_ATOM_STARTED, &rq->atomic_flags)) > + blk_mq_rq_state(rq) != MQ_RQ_IDLE) > __blk_mq_debugfs_rq_show(params->m, > list_entry_rq(&rq->queuelist)); The above code should show all requests owned by the block driver. Patch "blk-mq-debugfs: Also show requests that have not yet been started" (not yet in Jens' tree) changes the REQ_ATOM_STARTED test into list_empty(&rq->queuelist). Can that change be supported with the existing MQ_RQ_* states or will a new state have to be introduced to support this? See also https://marc.info/?l=linux-block&m=151252188411991. Thanks, Bart.
