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a438265948
Preemptible RCU does not use the rcu_data structure's ->cpu_no_qs.b.exp, instead using a separate ->exp_deferred_qs field to record the need for an expedited quiescent state. In fact ->cpu_no_qs.b.exp should never be set in preemptible RCU because preemptible RCU's expedited grace periods use other mechanisms to record quiescent states. This commit therefore removes the implicit rcu_qs() reference to ->cpu_no_qs.b.exp in favor of a direct reference to ->cpu_no_qs.b.norm. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@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.