diff mbox series

[5.10,28/38] nvme-loop: do not warn for deleted controllers during reset

Message ID 20210616152836.286484102@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman June 16, 2021, 3:33 p.m. UTC 
From: Hannes Reinecke <hare@suse.de>

[ Upstream commit 6622f9acd29cd4f6272720e827e6406f5a970cb0 ]

During concurrent reset and delete calls the reset workqueue is
flushed, causing nvme_loop_reset_ctrl_work() to be executed when
the controller is in state DELETING or DELETING_NOIO.
But this is expected, so we shouldn't issue a WARN_ON here.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/loop.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index df0e5288ae6e..16d71cc5a50e 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -453,8 +453,10 @@  static void nvme_loop_reset_ctrl_work(struct work_struct *work)
 	nvme_loop_shutdown_ctrl(ctrl);
 
 	if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) {
-		/* state change failure should never happen */
-		WARN_ON_ONCE(1);
+		if (ctrl->ctrl.state != NVME_CTRL_DELETING &&
+		    ctrl->ctrl.state != NVME_CTRL_DELETING_NOIO)
+			/* state change failure for non-deleted ctrl? */
+			WARN_ON_ONCE(1);
 		return;
 	}