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Notice that ignore_dl_rate_limit() need not piggy back on the limits_changed handling to achieve its goal (which is to enforce a frequency update before its due time). Namely, if sugov_should_update_freq() is updated to check sg_policy->need_freq_update and return 'true' if it is set when sg_policy->limits_changed is not set, ignore_dl_rate_limit() may set the former directly instead of setting the latter, so it can avoid hitting the memory barrier in sugov_should_update_freq(). Update the code accordingly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Christian Loehle <christian.loehle@arm.com> Link: https://patch.msgid.link/10666429.nUPlyArG6x@rjwysocki.net
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.