From: Sagi Grimberg <sagi@grimberg.me>
Date: Thu, 29 Jun 2017 11:13:43 +0300
Subject: nvme-loop: update tagset nr_hw_queues after reconnecting/resetting
Patch-mainline: v4.13-rc1
Git-commit: 4368c39bf6e6a2bfffb7a72d78912c68f156e8da
References: FATE#323952, FATE#322506
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>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
drivers/nvme/target/loop.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 568ed8625696..3d51341e62ee 100644
--- 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);
--
2.12.3