LXR linux/include/net/netprio

   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(p, net_prio_cgrp_id);
  29        idx = css->cgroup->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, 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