b38f57c1fe
The rcu_read_unlock_trace() can invoke rcu_read_unlock_trace_special(), which in turn can call wake_up(). Therefore, if any scheduler lock is held across a call to rcu_read_unlock_trace(), self-deadlock can occur. This commit therefore uses the irq_work facility to defer the wake_up() to a clean environment where no scheduler locks will be held. Reported-by: Steven Rostedt <rostedt@goodmis.org> [ paulmck: Update #includes for m68k per kbuild test robot. ] 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.