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8291471ea5
css_alloc() needs the parent css, while cgroup_css() gets current cgropu's css. So we are getting the wrong css during cgroup_init_subsys(). Fortunately, cgrp_dfl_root.cgrp's css is not set yet, so the value we pass to css_alloc() is NULL anyway. Let's pass NULL directly during init, since we know there is no parent yet. Signed-off-by: Wei Yang <richard.weiyang@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 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.