[mirror_ubuntu-hirsute-kernel.git] / include / net / netprio_cgroup.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * netprio_cgroup.h			Control Group Priority set
 *
 * Authors:	Neil Horman <nhorman@tuxdriver.com>
 */

#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->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
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
5bc1421e NH	2	/*
	3	* netprio_cgroup.h Control Group Priority set
	4	*
5bc1421e	5	* Authors: Neil Horman <nhorman@tuxdriver.com>
5bc1421e NH	6	*/
	7
	8	#ifndef _NETPRIO_CGROUP_H
	9	#define _NETPRIO_CGROUP_H
86f8515f	10
5bc1421e NH	11	#include <linux/cgroup.h>
	12	#include <linux/hardirq.h>
	13	#include <linux/rcupdate.h>
	14
86f8515f	15	#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
5bc1421e NH	16	struct netprio_map {
	17	struct rcu_head rcu;
	18	u32 priomap_len;
	19	u32 priomap[];
	20	};
	21
2b73bc65	22	static inline u32 task_netprioidx(struct task_struct *p)
5bc1421e	23	{
88d642fa	24	struct cgroup_subsys_state *css;
2b73bc65 NH	25	u32 idx;
	26
	27	rcu_read_lock();
073219e9	28	css = task_css(p, net_prio_cgrp_id);
db53c73a	29	idx = css->id;
2b73bc65 NH	30	rcu_read_unlock();
	31	return idx;
	32	}
2a56a1fe TH	33
	34	static 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
86f8515f	42	#else /* !CONFIG_CGROUP_NET_PRIO */
2a56a1fe	43
2b73bc65 NH	44	static inline u32 task_netprioidx(struct task_struct *p)
	45	{
	46	return 0;
	47	}
	48
2a56a1fe TH	49	static inline void sock_update_netprioidx(struct sock_cgroup_data *skcd)
	50	{
	51	}
51e4e7fa	52
86f8515f	53	#endif /* CONFIG_CGROUP_NET_PRIO */
5bc1421e	54	#endif /* _NET_CLS_CGROUP_H */