1 files changed, 6 insertions, 2 deletions

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index e2ffcdc26cb7..72154fb44fb5 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -457,6 +457,12 @@ static inline bool cgroup_sane_behavior(const struct cgroup *cgrp)
         return cgrp->root->flags & CGRP_ROOT_SANE_BEHAVIOR;
 }
 
+/* no synchronization, the result can only be used as a hint */
+static inline bool cgroup_has_tasks(struct cgroup *cgrp)
+{
+        return !list_empty(&cgrp->cset_links);
+}
+
 /* returns ino associated with a cgroup, 0 indicates unmounted root */
 static inline ino_t cgroup_ino(struct cgroup *cgrp)
 {
@@ -516,8 +522,6 @@ int cgroup_rm_cftypes(struct cftype *cfts);
 
 bool cgroup_is_descendant(struct cgroup *cgrp, struct cgroup *ancestor);
 
-int cgroup_task_count(const struct cgroup *cgrp);
-
 /*
  * Control Group taskset, used to pass around set of tasks to cgroup_subsys
  * methods.