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e7a1b32e43
The Energy Aware Scheduler (EAS) relies on the schedutil governor. When moving to/from the schedutil governor, sched domains must be rebuilt to allow re-evaluating the enablement conditions of EAS. This is done through sched_cpufreq_governor_change(). Having a cpufreq governor assumes a cpufreq driver is running. Inserting/removing a cpufreq driver should trigger a re-evaluation of EAS enablement conditions, avoiding to see EAS enabled when removing a running cpufreq driver. Rebuild the sched domains in schedutil's sugov_init()/sugov_exit(), allowing to check EAS's enablement condition whenever schedutil governor is initialized/exited from. Move relevant code up in schedutil.c to avoid a split and conditional function declaration. Rename sched_cpufreq_governor_change() to sugov_eas_rebuild_sd(). Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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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.