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e179e80c5d
sched_ext will soon add cgroup cpu.weigh support. The cgroup interface code is currently gated behind CONFIG_FAIR_GROUP_SCHED. As the fair class and/or SCX may implement the feature, put the interface code behind the new CONFIG_CGROUP_SCHED_WEIGHT which is selected by CONFIG_FAIR_GROUP_SCHED. This allows either sched class to enable the itnerface code without ading more complex CONFIG tests. When !CONFIG_FAIR_GROUP_SCHED, a dummy version of sched_group_set_shares() is added to support later CONFIG_CGROUP_SCHED_WEIGHT && !CONFIG_FAIR_GROUP_SCHED builds. No functional changes. Signed-off-by: Tejun Heo <tj@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.