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SRCU auto-expedites grace periods that follow a sufficiently long idle period, and the srcu_might_be_idle() function is used to make this decision. However, the upcoming light-weight SRCU readers will not do auto-expediting because doing so would cause the grace-period machinery to invoke synchronize_rcu_expedited() twice, with IPIs all around. However, software-engineering considerations force this determination to remain in srcu_might_be_idle(). This commit therefore changes the name of srcu_might_be_idle() to srcu_should_expedite(), thus moving from what it currently does to why it does it, this latter being more future-proof. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: <bpf@vger.kernel.org> Reviewed-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com> Signed-off-by: Frederic Weisbecker <frederic@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 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.