diff options
| author | Tejun Heo <tj@kernel.org> | 2013-08-08 20:11:22 -0400 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-08-08 20:11:22 -0400 |
| commit | 72c97e54e0f043d33b246d7460ae0a36c4b8c643 (patch) | |
| tree | 6ab5c1866671d43451aa2a03a0d3e68fada2f291 /kernel/cgroup.c | |
| parent | 3f79851831a135c5cebbcaa8cddb07d02870b069 (diff) | |
cgroup: add subsystem pointer to cgroup_subsys_state
Currently, given a cgroup_subsys_state, there's no way to find out
which subsystem the css is for, which we'll need to convert the cgroup
controller API to primarily use @css instead of @cgroup. This patch
adds cgroup_subsys_state->ss which points to the subsystem the @css
belongs to.
While at it, remove the comment about accessing @css->cgroup to
determine the hierarchy. cgroup core will provide API to traverse
hierarchy of css'es and we don't want subsystems to directly walk
cgroup hierarchies anymore.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 0b3caa3220c..4234428f101 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4186,6 +4186,7 @@ static void init_cgroup_css(struct cgroup_subsys_state *css, struct cgroup *cgrp) { css->cgroup = cgrp; + css->ss = ss; css->flags = 0; css->id = NULL; if (cgrp == cgroup_dummy_top) |