LXR linux/include/net/netprio

   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