cgroup: clean up cgroup_subsys names and initialization

[mirror_ubuntu-bionic-kernel.git] / net / core / netprio_cgroup.c

diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index 9043caedcd083bf48836d0a970d48d8c533f86ee..d7d23e28fafda0097655b9df1ec54b57ee75eb3c 100644 (file)
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -244,15 +244,12 @@ static struct cftype ss_files[] = {
        { }     /* terminate */
 };
 
-struct cgroup_subsys net_prio_subsys = {
-       .name           = "net_prio",
+struct cgroup_subsys net_prio_cgrp_subsys = {
        .css_alloc      = cgrp_css_alloc,
        .css_online     = cgrp_css_online,
        .css_free       = cgrp_css_free,
        .attach         = net_prio_attach,
-       .subsys_id      = net_prio_subsys_id,
        .base_cftypes   = ss_files,
-       .module         = THIS_MODULE,
 };
 
 static int netprio_device_event(struct notifier_block *unused,
@@ -283,37 +280,9 @@ static struct notifier_block netprio_device_notifier = {
 
 static int __init init_cgroup_netprio(void)
 {
-       int ret;
-
-       ret = cgroup_load_subsys(&net_prio_subsys);
-       if (ret)
-               goto out;
-
        register_netdevice_notifier(&netprio_device_notifier);
-
-out:
-       return ret;
-}
-
-static void __exit exit_cgroup_netprio(void)
-{
-       struct netprio_map *old;
-       struct net_device *dev;
-
-       unregister_netdevice_notifier(&netprio_device_notifier);
-
-       cgroup_unload_subsys(&net_prio_subsys);
-
-       rtnl_lock();
-       for_each_netdev(&init_net, dev) {
-               old = rtnl_dereference(dev->priomap);
-               RCU_INIT_POINTER(dev->priomap, NULL);
-               if (old)
-                       kfree_rcu(old, rcu);
-       }
-       rtnl_unlock();
+       return 0;
 }
 
-module_init(init_cgroup_netprio);
-module_exit(exit_cgroup_netprio);
+subsys_initcall(init_cgroup_netprio);
 MODULE_LICENSE("GPL v2");