cls_cgroup.h (8fb974c937570be38f944986456467b39a2dc252) cls_cgroup.h (8a8e04df4747661daaee77e98e102d99c9e09b98)
1/*
2 * cls_cgroup.h Control Group Classifier
3 *
4 * Authors: Thomas Graf <tgraf@suug.ch>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)

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37 rcu_read_lock();
38 classid = container_of(task_subsys_state(p, net_cls_subsys_id),
39 struct cgroup_cls_state, css)->classid;
40 rcu_read_unlock();
41
42 return classid;
43}
44#elif IS_MODULE(CONFIG_NET_CLS_CGROUP)
1/*
2 * cls_cgroup.h Control Group Classifier
3 *
4 * Authors: Thomas Graf <tgraf@suug.ch>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)

--- 28 unchanged lines hidden (view full) ---

37 rcu_read_lock();
38 classid = container_of(task_subsys_state(p, net_cls_subsys_id),
39 struct cgroup_cls_state, css)->classid;
40 rcu_read_unlock();
41
42 return classid;
43}
44#elif IS_MODULE(CONFIG_NET_CLS_CGROUP)
45
46extern int net_cls_subsys_id;
47
48static inline u32 task_cls_classid(struct task_struct *p)
49{
45static inline u32 task_cls_classid(struct task_struct *p)
46{
50 int id;
47 struct cgroup_subsys_state *css;
51 u32 classid = 0;
52
53 if (in_interrupt())
54 return 0;
55
56 rcu_read_lock();
48 u32 classid = 0;
49
50 if (in_interrupt())
51 return 0;
52
53 rcu_read_lock();
57 id = rcu_dereference_index_check(net_cls_subsys_id,
58 rcu_read_lock_held());
59 if (id >= 0)
60 classid = container_of(task_subsys_state(p, id),
54 css = task_subsys_state(p, net_cls_subsys_id);
55 if (css)
56 classid = container_of(css,
61 struct cgroup_cls_state, css)->classid;
62 rcu_read_unlock();
63
64 return classid;
65}
66#endif
67#else /* !CGROUP_NET_CLS_CGROUP */
68static inline void sock_update_classid(struct sock *sk)
69{
70}
71
72static inline u32 task_cls_classid(struct task_struct *p)
73{
74 return 0;
75}
76#endif /* CGROUP_NET_CLS_CGROUP */
77#endif /* _NET_CLS_CGROUP_H */
57 struct cgroup_cls_state, css)->classid;
58 rcu_read_unlock();
59
60 return classid;
61}
62#endif
63#else /* !CGROUP_NET_CLS_CGROUP */
64static inline void sock_update_classid(struct sock *sk)
65{
66}
67
68static inline u32 task_cls_classid(struct task_struct *p)
69{
70 return 0;
71}
72#endif /* CGROUP_NET_CLS_CGROUP */
73#endif /* _NET_CLS_CGROUP_H */