nvme-loop: set sqsize to 0-based value, per spec

Signed-off-by: Jay Freyensee <james_p_freyensee@linux.intel.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 7affd40..395e60d 100644 (file)
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -556,7 +556,7 @@ static int nvme_loop_create_io_queues(struct nvme_loop_ctrl *ctrl)
 
        memset(&ctrl->tag_set, 0, sizeof(ctrl->tag_set));
        ctrl->tag_set.ops = &nvme_loop_mq_ops;
-       ctrl->tag_set.queue_depth = ctrl->ctrl.sqsize;
+       ctrl->tag_set.queue_depth = ctrl->ctrl.opts->queue_size;
        ctrl->tag_set.reserved_tags = 1; /* fabric connect */
        ctrl->tag_set.numa_node = NUMA_NO_NODE;
        ctrl->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
@@ -620,7 +620,7 @@ static struct nvme_ctrl *nvme_loop_create_ctrl(struct device *dev,
 
        ret = -ENOMEM;
 
-       ctrl->ctrl.sqsize = opts->queue_size;
+       ctrl->ctrl.sqsize = opts->queue_size - 1;
        ctrl->ctrl.kato = opts->kato;
 
        ctrl->queues = kcalloc(opts->nr_io_queues + 1, sizeof(*ctrl->queues),