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845a724580
The cgroup struct has a css field called "self". The main difference between this css and the others found in the cgroup::subsys array is that cgroup::self has a NULL subsystem pointer. There are several places where checks are performed to determine whether the css in question is cgroup::self or not. Instead of accessing css->ss directly, introduce a helper function that shows the intent and use where applicable. Signed-off-by: JP Kobryn <inwardvessel@gmail.com> 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.