On Fri, Sep 19, 2014 at 04:53:14PM +0800, Zefan Li wrote: > Commit 5a17f543ed68 ("cgroup: improve css_from_dir() into css_tryget_from_dir()") > removed perf_tryget_cgroup(), so let's also remove perf_put_cgroup(). > > Signed-off-by: Zefan Li <lizefan@huawei.com>