linux-kernel - [PATCH] nvmet: exit debugfs after discovery subsystem exits

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Message-ID: <20250807053507.2794335-1-mkhalfella@purestorage.com>
Date: Wed,  6 Aug 2025 22:35:07 -0700
From: Mohamed Khalfella <mkhalfella@...estorage.com>
To: Yi Zhang <yi.zhang@...hat.com>,
	Christoph Hellwig <hch@....de>,
	Sagi Grimberg <sagi@...mberg.me>,
	Chaitanya Kulkarni <kch@...dia.com>,
	Keith Busch <kbusch@...nel.org>
Cc: Shinichiro Kawasaki <shinichiro.kawasaki@....com>,
	Mohamed Khalfella <mkhalfella@...estorage.com>,
	Hannes Reinecke <hare@...nel.org>,
	Daniel Wagner <dwagner@...e.de>,
	Maurizio Lombardi <mlombard@...hat.com>,
	Jens Axboe <axboe@...nel.dk>,
	Randy Jennings <randyj@...estorage.com>,
	linux-nvme@...ts.infradead.org,
	linux-block <linux-block@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] nvmet: exit debugfs after discovery subsystem exits

Commit 528589947c180 ("nvmet: initialize discovery subsys after debugfs
is initialized") changed nvmet_init() to initialize nvme discovery after
"nvmet" debugfs directory is initialized. The change broke nvmet_exit()
because discovery subsystem now depends on debugfs. Debugfs should be
destroyed after discovery subsystem. Fix nvmet_exit() to do that.

Reported-by: Yi Zhang <yi.zhang@...hat.com>
Closes: https://lore.kernel.org/all/CAHj4cs96AfFQpyDKF_MdfJsnOEo=2V7dQgqjFv+k3t7H-=yGhA@mail.gmail.com/
Fixes: 528589947c180 ("nvmet: initialize discovery subsys after debugfs is initialized")
Signed-off-by: Mohamed Khalfella <mkhalfella@...estorage.com>
---
 drivers/nvme/target/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 83f3d2f8ef2d0..0dd7bd99afa32 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -1992,8 +1992,8 @@ static int __init nvmet_init(void)
 static void __exit nvmet_exit(void)
 {
 	nvmet_exit_configfs();
-	nvmet_exit_debugfs();
 	nvmet_exit_discovery();
+	nvmet_exit_debugfs();
 	ida_destroy(&cntlid_ida);
 	destroy_workqueue(nvmet_wq);
 	destroy_workqueue(buffered_io_wq);
-- 
2.49.1