nvme-loop: update tagset nr_hw_queues after reconnecting/resetting

We might have more/less queues once we reconnect/reset. For
example due to cpu going online/offline

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 568ed86256968f83fd300f357b300983a88eac6b..3d51341e62ee5316ac1845914e3e3712b3b25ac3 100644 (file)
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -508,6 +508,9 @@ static void nvme_loop_reset_ctrl_work(struct work_struct *work)
        if (ret)
                goto out_destroy_io;
 
+       blk_mq_update_nr_hw_queues(&ctrl->tag_set,
+                       ctrl->ctrl.queue_count - 1);
+
        changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
        WARN_ON_ONCE(!changed);