Commits
Tejun Heo committed 56c807ba4e9
cgroup: add cgroup_subsys->css_e_css_changed() Add a new cgroup_subsys operatoin ->css_e_css_changed(). This is invoked if any of the effective csses seen from the css's cgroup may have changed. This will be used to implement cgroup writeback support. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Zefan Li <lizefan@huawei.com>