[deliverable/linux.git] / 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/cgroup.h>
#include <linux/hardirq.h>
#include <linux/rcupdate.h>

#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
struct netprio_map {
	struct rcu_head rcu;
	u32 priomap_len;
	u32 priomap[];
};

static inline u32 task_netprioidx(struct task_struct *p)
{
	struct cgroup_subsys_state *css;
	u32 idx;

	rcu_read_lock();
	css = task_css(p, net_prio_cgrp_id);
	idx = css->cgroup->id;
	rcu_read_unlock();
	return idx;
}

static inline void sock_update_netprioidx(struct sock_cgroup_data *skcd)
{
	if (in_interrupt())
		return;

	sock_cgroup_set_prioidx(skcd, task_netprioidx(current));
}

#else /* !CONFIG_CGROUP_NET_PRIO */

static inline u32 task_netprioidx(struct task_struct *p)
{
	return 0;
}

static inline void sock_update_netprioidx(struct sock_cgroup_data *skcd)
{
}

#endif /* CONFIG_CGROUP_NET_PRIO */
#endif  /* _NET_CLS_CGROUP_H */
Commit	Line	Data
	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)
	22	struct netprio_map {
	23	struct rcu_head rcu;
	24	u32 priomap_len;
	25	u32 priomap[];
	26	};
	27
	28	static 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
	40	static 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
	50	static inline u32 task_netprioidx(struct task_struct *p)
	51	{
	52	return 0;
	53	}
	54
	55	static 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 */