dm: make sure create and remove dm device won't race with open and close table

dm: make sure create and remove dm device won't race with open and close table

[ Upstream commit a4242c235174f1dde5c137c8c74e4494e747a40f ]

open_table_device() and close_table_device() is protected by
table_devices_lock, hence use it to protect add_disk() and
del_gendisk().

Prepare to track per-add_disk holder relations in dm.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221115141054.1051801-6-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: 850af5d876bb ("dm: track per-add_disk holder relations in DM")
Signed-off-by: Sasha Levin <sashal@kernel.org>