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This commit adds a test_boost_holdoff module parameter that tells the RCU priority-boosting tests to wait for the specified number of seconds past the start of the rcutorture test. This can be useful when rcutorture is built into the kernel (as opposed to being modprobed), especially on large systems where early start of RCU priority boosting can delay the boot sequence, which adds a full CPU's worth of load onto the system. This can in turn result in pointless stall warnings. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
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 reStructuredText 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.