diff options
| author | Li Zefan <lizefan@huawei.com> | 2013-04-15 14:25:05 +0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-04-14 23:26:10 -0700 |
| commit | 05fb22ec5456a472a5eadcaacb3e51eca1f8c79c (patch) | |
| tree | 37be0dd3b40b8bf6fc3f4933703543423c39d311 | |
| parent | 873fe09ea5df6ccf6bb34811d8c9992aacb67598 (diff) | |
cgroup: remove cgrp->top_cgroup
It's not used, and it can be retrieved via cgrp->root->top_cgroup.
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
| -rw-r--r-- | include/linux/cgroup.h | 1 | ||||
| -rw-r--r-- | kernel/cgroup.c | 2 |
2 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 9c300ad9a911..64047ae7fde1 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -204,7 +204,6 @@ struct cgroup { struct cgroup_subsys_state *subsys[CGROUP_SUBSYS_COUNT]; struct cgroupfs_root *root; - struct cgroup *top_cgroup; /* * List of cg_cgroup_links pointing at css_sets with diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 67804590d4b0..c16719e056ab 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1418,7 +1418,6 @@ static void init_cgroup_root(struct cgroupfs_root *root) root->number_of_cgroups = 1; cgrp->root = root; cgrp->name = &root_cgroup_name; - cgrp->top_cgroup = cgrp; init_cgroup_housekeeping(cgrp); list_add_tail(&cgrp->allcg_node, &root->allcg_list); } @@ -4145,7 +4144,6 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, cgrp->parent = parent; cgrp->root = parent->root; - cgrp->top_cgroup = parent->top_cgroup; if (notify_on_release(parent)) set_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags); |