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Linux kernel mirror (for testing)
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kernel
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linux
1/*
2 * netprio_cgroup.h Control Group Priority set
3 *
4 *
5 * Authors: Neil Horman <nhorman@tuxdriver.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 */
13
14#ifndef _NETPRIO_CGROUP_H
15#define _NETPRIO_CGROUP_H
16
17#include <linux/cgroup.h>
18#include <linux/hardirq.h>
19#include <linux/rcupdate.h>
20
21#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
22struct netprio_map {
23 struct rcu_head rcu;
24 u32 priomap_len;
25 u32 priomap[];
26};
27
28void sock_update_netprioidx(struct sock *sk);
29
30#if IS_BUILTIN(CONFIG_CGROUP_NET_PRIO)
31static inline u32 task_netprioidx(struct task_struct *p)
32{
33 struct cgroup_subsys_state *css;
34 u32 idx;
35
36 rcu_read_lock();
37 css = task_css(p, net_prio_subsys_id);
38 idx = css->cgroup->id;
39 rcu_read_unlock();
40 return idx;
41}
42#elif IS_MODULE(CONFIG_CGROUP_NET_PRIO)
43static inline u32 task_netprioidx(struct task_struct *p)
44{
45 struct cgroup_subsys_state *css;
46 u32 idx = 0;
47
48 rcu_read_lock();
49 css = task_css(p, net_prio_subsys_id);
50 if (css)
51 idx = css->cgroup->id;
52 rcu_read_unlock();
53 return idx;
54}
55#endif
56#else /* !CONFIG_CGROUP_NET_PRIO */
57static inline u32 task_netprioidx(struct task_struct *p)
58{
59 return 0;
60}
61
62#define sock_update_netprioidx(sk)
63
64#endif /* CONFIG_CGROUP_NET_PRIO */
65#endif /* _NET_CLS_CGROUP_H */