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[ Upstream commit4bc14f3101] After setting keep_id if the mutex trylock fails, the keep_id stays set for the rest of the sess_dev lifetime. Therefore, set keep_id to true after mutex_trylock succeeds, so that a failure of trylock does'nt touch keep_id. Fixes:b168e1d85c("block/rnbd-srv: Prevent a deadlock generated by accessing sysfs in parallel") Cc: gi-oh.kim@ionos.com Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com> Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Link: https://lore.kernel.org/r/20220707143122.460362-2-haris.iqbal@ionos.com Signed-off-by: Jens Axboe <axboe@kernel.dk> 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.