This is a note to let you know that I've just added the patch titled

nvmet: cancel fatal error and flush async work before free controller

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: nvmet-cancel-fatal-error-and-flush-async-work-before-free-controller.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Wed Dec 6 17:39:55 CET 2017

From: Sagi Grimberg sagi@grimberg.me Date: Sun, 1 Jan 2017 13:41:56 +0200 Subject: nvmet: cancel fatal error and flush async work before free controller

From: Sagi Grimberg sagi@grimberg.me

[ Upstream commit 06406d81a2d7cfb8abcc4fa6cdfeb8e5897007c5 ]

Make sure they are not running and we can free the controller safely.

Signed-off-by: Roy Shterman roys@lightbitslabs.com Signed-off-by: Sagi Grimberg sagi@grimberg.me Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/nvme/target/core.c | 3 +++ 1 file changed, 3 insertions(+)

--- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -816,6 +816,9 @@ static void nvmet_ctrl_free(struct kref list_del(&ctrl->subsys_entry); mutex_unlock(&subsys->lock);

+ flush_work(&ctrl->async_event_work); + cancel_work_sync(&ctrl->fatal_err_work); + ida_simple_remove(&subsys->cntlid_ida, ctrl->cntlid); nvmet_subsys_put(subsys);

Patches currently in stable-queue which might be from sagi@grimberg.me are

queue-4.9/nvmet-cancel-fatal-error-and-flush-async-work-before-free-controller.patch