@@ -668,21 +668,6 @@ struct cgroup_subsys {
*/
bool threaded:1;
- /*
- * If %false, this subsystem is properly hierarchical -
- * configuration, resource accounting and restriction on a parent
- * cgroup cover those of its children. If %true, hierarchy support
- * is broken in some ways - some subsystems ignore hierarchy
- * completely while others are only implemented half-way.
- *
- * It's now disallowed to create nested cgroups if the subsystem is
- * broken and cgroup core will emit a warning message on such
- * cases. Eventually, all subsystems will be made properly
- * hierarchical and this will go away.
- */
- bool broken_hierarchy:1;
- bool warned_broken_hierarchy:1;
-
/* the following two fields are initialized automtically during boot */
int id;
const char *name;
@@ -5149,13 +5149,6 @@ static struct cgroup_subsys_state *css_create(struct cgroup *cgrp,
if (err)
goto err_list_del;
- if (ss->broken_hierarchy && !ss->warned_broken_hierarchy &&
- cgroup_parent(parent)) {
- pr_warn("%s (%d) created nested cgroup for controller \"%s\" which has incomplete hierarchy support. Nested cgroups may change behavior in the future.\n",
- current->comm, current->pid, ss->name);
- ss->warned_broken_hierarchy = true;
- }
-
return css;
err_list_del: