mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 22:53:55 +08:00
88d642fa2c
With priomap expansion no longer depending on knowing max id allocated, netprio_cgroup can use cgroup->id insted of cs->prioidx. Drop prioidx alloc/free logic and convert all uses to cgroup->id. * In cgrp_css_alloc(), parent->id test is moved above @cs allocation to simplify error path. * In cgrp_css_free(), @cs assignment is made initialization. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Neil Horman <nhorman@tuxdriver.com> Tested-and-Acked-by: Daniel Wagner <daniel.wagner@bmw-carit.de> Acked-by: David S. Miller <davem@davemloft.net>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/*
|
|
* 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_NETPRIO_CGROUP)
|
|
struct netprio_map {
|
|
struct rcu_head rcu;
|
|
u32 priomap_len;
|
|
u32 priomap[];
|
|
};
|
|
|
|
struct cgroup_netprio_state {
|
|
struct cgroup_subsys_state css;
|
|
};
|
|
|
|
extern void sock_update_netprioidx(struct sock *sk, struct task_struct *task);
|
|
|
|
#if IS_BUILTIN(CONFIG_NETPRIO_CGROUP)
|
|
|
|
static inline u32 task_netprioidx(struct task_struct *p)
|
|
{
|
|
struct cgroup_subsys_state *css;
|
|
u32 idx;
|
|
|
|
rcu_read_lock();
|
|
css = task_subsys_state(p, net_prio_subsys_id);
|
|
idx = css->cgroup->id;
|
|
rcu_read_unlock();
|
|
return idx;
|
|
}
|
|
|
|
#elif IS_MODULE(CONFIG_NETPRIO_CGROUP)
|
|
|
|
static inline u32 task_netprioidx(struct task_struct *p)
|
|
{
|
|
struct cgroup_subsys_state *css;
|
|
u32 idx = 0;
|
|
|
|
rcu_read_lock();
|
|
css = task_subsys_state(p, net_prio_subsys_id);
|
|
if (css)
|
|
idx = css->cgroup->id;
|
|
rcu_read_unlock();
|
|
return idx;
|
|
}
|
|
#endif
|
|
|
|
#else /* !CONFIG_NETPRIO_CGROUP */
|
|
|
|
static inline u32 task_netprioidx(struct task_struct *p)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#define sock_update_netprioidx(sk, task)
|
|
|
|
#endif /* CONFIG_NETPRIO_CGROUP */
|
|
|
|
#endif /* _NET_CLS_CGROUP_H */
|