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550611269b
Now that tasks are not removed from the list until they have responded to any needed request for a quiescent state, it is no longer necessary to wait for the trc_n_readers_need_end counter to go to zero. This commit therefore removes that waiting code. It is therefore also no longer necessary for rcu_tasks_trace_postgp() to do the final decrement of this counter, so that code is also removed. This in turn means that trc_n_readers_need_end counter itself can be removed, as can the rcu_tasks_trace_iw irq_work structure and the rcu_read_unlock_iw() function. [ paulmck: Apply feedback from Zqiang. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Martin KaFai Lau <kafai@fb.com> Cc: KP Singh <kpsingh@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.