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[ Upstream commitd563792c89] 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:1a581b7216("dm: track per-add_disk holder relations in DM") Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.