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
28static inline u32 task_netprioidx(struct task_struct *p)
29{
30 struct cgroup_subsys_state *css;
31 u32 idx;
32
33 rcu_read_lock();
34 css = task_css(p, net_prio_cgrp_id);
35 idx = css->cgroup->id;
36 rcu_read_unlock();
37 return idx;
38}
39
40static inline void sock_update_netprioidx(struct sock_cgroup_data *skcd)
41{
42 if (in_interrupt())
43 return;
44
45 sock_cgroup_set_prioidx(skcd, task_netprioidx(current));
46}
47
48#else /* !CONFIG_CGROUP_NET_PRIO */
49
50static inline u32 task_netprioidx(struct task_struct *p)
51{
52 return 0;
53}
54
55static inline void sock_update_netprioidx(struct sock_cgroup_data *skcd)
56{
57}
58
59#endif /* CONFIG_CGROUP_NET_PRIO */
60#endif /* _NET_CLS_CGROUP_H */
61