[PATCH 3/5] nvme/pci: End stopped queue requests directly
Sagi Grimberg
sagi at grimberg.me
Tue Jan 23 05:14:52 PST 2018
> +static void nvme_end_stopped_queue_request(struct request *req, void *data,
> + bool reserved)
nvme_pci_end_stopped_queue_request
> +{
> + struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
> + struct nvme_queue *nvmeq = iod->nvmeq;
> +
> + if (nvmeq->cq_vector != -1)
> + return;
> + dev_dbg_ratelimited(((struct nvme_ctrl *) data)->device,
> + "Ending I/O %d QID:%d", req->tag, nvmeq->qid);
> + blk_mq_end_request(req, BLK_STS_IOERR);
> +}
> +
> static void nvme_reset_work(struct work_struct *work)
> {
> struct nvme_dev *dev =
> @@ -2344,6 +2357,8 @@ static void nvme_reset_work(struct work_struct *work)
> nvme_remove_namespaces(&dev->ctrl);
> new_state = NVME_CTRL_ADMIN_ONLY;
> } else {
> + nvme_set_iter(&dev->ctrl, dev->ctrl.tagset,
> + nvme_end_stopped_queue_request);
It would have been good if we could reuse that in other transports
where we maintain state flags (NVME_*_Q_LIVE).
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