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//lib/modules/2.6.32-754.el6.x86_64/source/include/net/netprio_cgroup.h

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

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

#ifdef CONFIG_CGROUPS

#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)
{
#ifdef 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)
#define skb_update_prio(skb)

static inline struct cgroup_netprio_state
		*task_netprio_state(struct task_struct *p)
{
	return NULL;
}

#endif

#endif  /* _NET_CLS_CGROUP_H */

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