From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- include/net/cls_cgroup.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 include/net/cls_cgroup.h (limited to 'include/net/cls_cgroup.h') diff --git a/include/net/cls_cgroup.h b/include/net/cls_cgroup.h new file mode 100644 index 00000000..a4dc5b02 --- /dev/null +++ b/include/net/cls_cgroup.h @@ -0,0 +1,70 @@ +/* + * cls_cgroup.h Control Group Classifier + * + * Authors: Thomas Graf + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#ifndef _NET_CLS_CGROUP_H +#define _NET_CLS_CGROUP_H + +#include +#include +#include + +#ifdef CONFIG_CGROUPS +struct cgroup_cls_state +{ + struct cgroup_subsys_state css; + u32 classid; +}; + +#ifdef CONFIG_NET_CLS_CGROUP +static inline u32 task_cls_classid(struct task_struct *p) +{ + int classid; + + if (in_interrupt()) + return 0; + + rcu_read_lock(); + classid = container_of(task_subsys_state(p, net_cls_subsys_id), + struct cgroup_cls_state, css)->classid; + rcu_read_unlock(); + + return classid; +} +#else +extern int net_cls_subsys_id; + +static inline u32 task_cls_classid(struct task_struct *p) +{ + int id; + u32 classid = 0; + + if (in_interrupt()) + return 0; + + rcu_read_lock(); + id = rcu_dereference_index_check(net_cls_subsys_id, + rcu_read_lock_held()); + if (id >= 0) + classid = container_of(task_subsys_state(p, id), + struct cgroup_cls_state, css)->classid; + rcu_read_unlock(); + + return classid; +} +#endif +#else +static inline u32 task_cls_classid(struct task_struct *p) +{ + return 0; +} +#endif +#endif /* _NET_CLS_CGROUP_H */ -- cgit