/*
   * netprio_cgroup.h			Control Group Priority set
   *
   *
   * Authors:	Neil Horman <nhorman@tuxdriver.com>
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License as published by the Free
   * Software Foundation; either version 2 of the License, or (at your option)
   * any later version.
   *
   */
  
  #ifndef _NETPRIO_CGROUP_H
  #define _NETPRIO_CGROUP_H
  #include <linux/module.h>
  #include <linux/cgroup.h>
  #include <linux/hardirq.h>
  #include <linux/rcupdate.h>

  
  struct netprio_map {
  	struct rcu_head rcu;
  	u32 priomap_len;
  	u32 priomap[];
  };
  
  #ifdef CONFIG_CGROUPS

  struct cgroup_netprio_state {
  	struct cgroup_subsys_state css;
  	u32 prioidx;
  };

  #ifndef CONFIG_NETPRIO_CGROUP
  extern int net_prio_subsys_id;
  #endif
  
  extern void sock_update_netprioidx(struct sock *sk);
  
  static inline struct cgroup_netprio_state
  		*task_netprio_state(struct task_struct *p)
  {
  #if IS_ENABLED(CONFIG_NETPRIO_CGROUP)
  	return container_of(task_subsys_state(p, net_prio_subsys_id),
  			    struct cgroup_netprio_state, css);
  #else
  	return NULL;
  #endif
  }
  
  #else
  
  #define sock_update_netprioidx(sk)

  #endif
  
  #endif  /* _NET_CLS_CGROUP_H */