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| author | Tejun Heo <tj@kernel.org> | 2013-08-26 22:40:56 (GMT) |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-08-26 22:40:56 (GMT) |
| commit | ca8bdcaff0d77990fb69e0f946018c96a70851cc (patch) | |
| tree | ac98548b8fc61cf8017a67df9be6c5a4e87a6201 /samples/uhid | |
| parent | 35cf083619da5677f83e9a8eae813f0b413d7082 (diff) | |
| download | linux-ca8bdcaff0d77990fb69e0f946018c96a70851cc.tar.xz | |
cgroup: make cgroup_css() take cgroup_subsys * instead and allow NULL subsys
cgroup_css() is no longer used in hot paths. Make it take struct
cgroup_subsys * and allow the users to specify NULL subsys to obtain
the dummy_css. This removes open-coded NULL subsystem testing in a
couple users and generally simplifies the code.
After this patch, css_from_dir() also allows NULL @ss and returns the
matching dummy_css. This behavior change doesn't affect its only user
- perf.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Diffstat (limited to 'samples/uhid')
0 files changed, 0 insertions, 0 deletions