[PATCH V4 7/9] nvme-core: align fabrics_q teardown with admin_q in nvme_free_ctrl

Maurizio Lombardi mlombard at redhat.com
Fri May 8 06:33:33 PDT 2026


Currently, the final reference for the fabrics admin queue (fabrics_q)
is dropped inside nvme_remove_admin_tag_set(). However, the primary
admin queue (admin_q) defers dropping its final reference until
nvme_free_ctrl().

Move the blk_put_queue() call for fabrics_q from nvme_remove_admin_tag_set()
to nvme_free_ctrl(). This aligns the lifecycle management of both admin
queues, ensuring they are freed symmetrically when the controller is finally
torn down.

Reviewed-by: Daniel Wagner <dwagner at suse.de>
Signed-off-by: Maurizio Lombardi <mlombard at redhat.com>
---
 drivers/nvme/host/core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 5d3200a66f8e..73575d087a07 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4932,10 +4932,8 @@ void nvme_remove_admin_tag_set(struct nvme_ctrl *ctrl)
 	 */
 	nvme_stop_keep_alive(ctrl);
 	blk_mq_destroy_queue(ctrl->admin_q);
-	if (ctrl->ops->flags & NVME_F_FABRICS) {
+	if (ctrl->ops->flags & NVME_F_FABRICS)
 		blk_mq_destroy_queue(ctrl->fabrics_q);
-		blk_put_queue(ctrl->fabrics_q);
-	}
 	blk_mq_free_tag_set(ctrl->admin_tagset);
 }
 EXPORT_SYMBOL_GPL(nvme_remove_admin_tag_set);
@@ -5077,6 +5075,8 @@ static void nvme_free_ctrl(struct device *dev)
 
 	if (ctrl->admin_q)
 		blk_put_queue(ctrl->admin_q);
+	if (ctrl->fabrics_q)
+		blk_put_queue(ctrl->fabrics_q);
 	if (!subsys || ctrl->instance != subsys->instance)
 		ida_free(&nvme_instance_ida, ctrl->instance);
 	nvme_free_cels(ctrl);
-- 
2.54.0




More information about the Linux-nvme mailing list