1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * netprio_cgroup.h Control Group Priority set
4 *
5 * Authors: Neil Horman <nhorman@tuxdriver.com>
6 */
7
8#ifndef _NETPRIO_CGROUP_H
9#define _NETPRIO_CGROUP_H
10
11#include <linux/cgroup.h>
12#include <linux/hardirq.h>
13#include <linux/rcupdate.h>
14
15#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
16struct netprio_map {
17 struct rcu_head rcu;
18 u32 priomap_len;
19 u32 priomap[];
20};
21
22static inline u32 task_netprioidx(struct task_struct *p)
23{
24 struct cgroup_subsys_state *css;
25 u32 idx;
26
27 rcu_read_lock();
28 css = task_css(task: p, subsys_id: net_prio_cgrp_id);
29 idx = css->id;
30 rcu_read_unlock();
31 return idx;
32}
33
34static inline void sock_update_netprioidx(struct sock_cgroup_data *skcd)
35{
36 if (in_interrupt())
37 return;
38
39 sock_cgroup_set_prioidx(skcd, prioidx: task_netprioidx(current));
40}
41
42#else /* !CONFIG_CGROUP_NET_PRIO */
43
44static inline u32 task_netprioidx(struct task_struct *p)
45{
46 return 0;
47}
48
49static inline void sock_update_netprioidx(struct sock_cgroup_data *skcd)
50{
51}
52
53#endif /* CONFIG_CGROUP_NET_PRIO */
54#endif /* _NET_CLS_CGROUP_H */
55