On Sat, Nov 27, 2021 at 02:59:19PM +0000, Wei Yang wrote: > 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() doesn't harm to the system. > > Let's pass NULL directly during init, since we know there is no parent > yet. > > Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx> Applied to cgroup/for-5.17 w/ minor description adjustment. Thanks. -- tejun
