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authorTejun Heo <tj@kernel.org>2014-02-13 06:58:43 -0500
committerTejun Heo <tj@kernel.org>2014-02-13 06:58:43 -0500
commitbc668c7519ff8b4681af80e92f463bec7bf7cf9e (patch)
treef2940d003d0cb3d2395d5f7d12524e968839add2 /kernel
parent57fce0a68e3aa71d223d9023aae66c7393970c34 (diff)
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cgroup: remove cgroup_taskset_cur_css() and cgroup_taskset_size()
The two functions don't have any users left. Remove them along with cgroup_taskset->cur_cgrp. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/cgroup.c30
1 files changed, 0 insertions, 30 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 704c590a81d7..a9d9bbb12310 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1647,7 +1647,6 @@ struct cgroup_taskset {
struct flex_array *tc_array;
int tc_array_len;
int idx;
- struct cgroup *cur_cgrp;
};
/**
@@ -1662,7 +1661,6 @@ struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset)
tset->idx = 0;
return cgroup_taskset_next(tset);
} else {
- tset->cur_cgrp = tset->single.cgrp;
return tset->single.task;
}
}
@@ -1683,39 +1681,11 @@ struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset)
return NULL;
tc = flex_array_get(tset->tc_array, tset->idx++);
- tset->cur_cgrp = tc->cgrp;
return tc->task;
}
EXPORT_SYMBOL_GPL(cgroup_taskset_next);
/**
- * cgroup_taskset_cur_css - return the matching css for the current task
- * @tset: taskset of interest
- * @subsys_id: the ID of the target subsystem
- *
- * Return the css for the current (last returned) task of @tset for
- * subsystem specified by @subsys_id. This function must be preceded by
- * either cgroup_taskset_first() or cgroup_taskset_next().
- */
-struct cgroup_subsys_state *cgroup_taskset_cur_css(struct cgroup_taskset *tset,
- int subsys_id)
-{
- return cgroup_css(tset->cur_cgrp, cgroup_subsys[subsys_id]);
-}
-EXPORT_SYMBOL_GPL(cgroup_taskset_cur_css);
-
-/**
- * cgroup_taskset_size - return the number of tasks in taskset
- * @tset: taskset of interest
- */
-int cgroup_taskset_size(struct cgroup_taskset *tset)
-{
- return tset->tc_array ? tset->tc_array_len : 1;
-}
-EXPORT_SYMBOL_GPL(cgroup_taskset_size);
-
-
-/**
* cgroup_task_migrate - move a task from one cgroup to another.
* @old_cgrp; the cgroup @tsk is being migrated from
* @tsk: the task being migrated