Merge tag 'backlight-for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6-block.git] / include / net / netprio_cgroup.h
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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
86f8515f 16
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17#include <linux/cgroup.h>
18#include <linux/hardirq.h>
19#include <linux/rcupdate.h>
20
86f8515f 21#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
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22struct netprio_map {
23 struct rcu_head rcu;
24 u32 priomap_len;
25 u32 priomap[];
26};
27
37830721 28void sock_update_netprioidx(struct sock *sk);
5bc1421e 29
2b73bc65 30static inline u32 task_netprioidx(struct task_struct *p)
5bc1421e 31{
88d642fa 32 struct cgroup_subsys_state *css;
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33 u32 idx;
34
35 rcu_read_lock();
073219e9 36 css = task_css(p, net_prio_cgrp_id);
88d642fa 37 idx = css->cgroup->id;
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38 rcu_read_unlock();
39 return idx;
40}
86f8515f 41#else /* !CONFIG_CGROUP_NET_PRIO */
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42static inline u32 task_netprioidx(struct task_struct *p)
43{
44 return 0;
45}
46
6ffd4641 47#define sock_update_netprioidx(sk)
51e4e7fa 48
86f8515f 49#endif /* CONFIG_CGROUP_NET_PRIO */
5bc1421e 50#endif /* _NET_CLS_CGROUP_H */