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
30static inline u32 task_netprioidx(struct task_struct *p)
31{
32	struct cgroup_subsys_state *css;
33	u32 idx;
34
35	rcu_read_lock();
36	css = task_css(p, net_prio_cgrp_id);
37	idx = css->cgroup->id;
38	rcu_read_unlock();
39	return idx;
40}
41#else /* !CONFIG_CGROUP_NET_PRIO */
42static inline u32 task_netprioidx(struct task_struct *p)
43{
44	return 0;
45}
46
47#define sock_update_netprioidx(sk)
48
49#endif /* CONFIG_CGROUP_NET_PRIO */
50#endif  /* _NET_CLS_CGROUP_H */