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cgroup: remove now unused css_depth()

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Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
This commit is contained in:
Tejun Heo 2013-06-12 21:04:48 -07:00
parent d5c56ced77
commit 3fc3db9a3a
2 changed files with 0 additions and 13 deletions
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1
include/linux/cgroup.h
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@ -848,7 +848,6 @@ bool css_is_ancestor(struct cgroup_subsys_state *cg,
/* Get id and depth of css */
unsigned short css_id(struct cgroup_subsys_state *css);
unsigned short css_depth(struct cgroup_subsys_state *css);
struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id);
#else /* !CONFIG_CGROUPS */

12
kernel/cgroup.c
View File

@ -5227,18 +5227,6 @@ unsigned short css_id(struct cgroup_subsys_state *css)
}
EXPORT_SYMBOL_GPL(css_id);
unsigned short css_depth(struct cgroup_subsys_state *css)
{
struct css_id *cssid;
cssid = rcu_dereference_check(css->id, css_refcnt(css));
if (cssid)
return cssid->depth;
return 0;
}
EXPORT_SYMBOL_GPL(css_depth);
/**
* css_is_ancestor - test "root" css is an ancestor of "child"
* @child: the css to be tested.