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Commit cef6a948 authored by Keith Busch's avatar Keith Busch Committed by Jens Axboe
Browse files

NVMe: Command abort handling fixes 



Aborts all requeued commands prior to killing the request_queue. For
commands that time out on a dying request queue, set the "Do Not Retry"
bit on the command status so the command cannot be requeued. Finanally, if
the driver is requested to abort a command it did not start, do nothing.

Signed-off-by: default avatarKeith Busch <keith.busch@intel.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 0fb59cbc

drivers/block/nvme-core.c

+13 −4
Original line number Diff line number Diff line
@@ -1064,15 +1064,22 @@ static void nvme_cancel_queue_ios(struct blk_mq_hw_ctx *hctx, 
	void *ctx;

	nvme_completion_fn fn;

	struct nvme_cmd_info *cmd;

	static struct nvme_completion cqe = {

		.status = cpu_to_le16(NVME_SC_ABORT_REQ << 1),

	};

	struct nvme_completion cqe;



	if (!blk_mq_request_started(req))

		return;



	cmd = blk_mq_rq_to_pdu(req);



	if (cmd->ctx == CMD_CTX_CANCELLED)

		return;



	if (blk_queue_dying(req->q))

		cqe.status = cpu_to_le16((NVME_SC_ABORT_REQ | NVME_SC_DNR) << 1);

	else

		cqe.status = cpu_to_le16(NVME_SC_ABORT_REQ << 1);





	dev_warn(nvmeq->q_dmadev, "Cancelling I/O %d QID %d\n",

						req->tag, nvmeq->qid);

	ctx = cancel_cmd_info(cmd, &fn);
@@ -2429,10 +2436,12 @@ static void nvme_dev_remove(struct nvme_dev *dev) 
	list_for_each_entry(ns, &dev->namespaces, list) {

		if (ns->disk->flags & GENHD_FL_UP)

			del_gendisk(ns->disk);

		if (!blk_queue_dying(ns->queue))

		if (!blk_queue_dying(ns->queue)) {

			blk_mq_abort_requeue_list(ns->queue);

			blk_cleanup_queue(ns->queue);

		}

	}

}



static int nvme_setup_prp_pools(struct nvme_dev *dev)

{