From: Sagi Grimberg <sagi@grimberg.me>
Date: Thu, 29 Jun 2017 08:13:43 +0000 (+0300)
Subject: nvme-loop: update tagset nr_hw_queues after reconnecting/resetting
X-Git-Tag: Ubuntu-5.10.0-12.13~9892^2~1^2~18
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=4368c39bf6e6a2bfffb7a72d78912c68f156e8da;p=mirror_ubuntu-hirsute-kernel.git

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 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);