Merge branch 'for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

[linux-2.6-microblaze.git] / include / linux / cgroup.h

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index b8bcbde..b622d66 100644 (file)
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -569,20 +569,11 @@ static inline bool cgroup_is_descendant(struct cgroup *cgrp,
 static inline struct cgroup *cgroup_ancestor(struct cgroup *cgrp,
                                             int ancestor_level)
 {
-       struct cgroup *ptr;
-
        if (cgrp->level < ancestor_level)
                return NULL;
-
-       for (ptr = cgrp;
-            ptr && ptr->level > ancestor_level;
-            ptr = cgroup_parent(ptr))
-               ;
-
-       if (ptr && ptr->level == ancestor_level)
-               return ptr;
-
-       return NULL;
+       while (cgrp && cgrp->level > ancestor_level)
+               cgrp = cgroup_parent(cgrp);
+       return cgrp;
 }
 
 /**