Commit | Line | Data |
---|---|---|
5bc1421e NH |
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 | |
5bc1421e NH |
16 | #include <linux/cgroup.h> |
17 | #include <linux/hardirq.h> | |
18 | #include <linux/rcupdate.h> | |
19 | ||
5bc1421e | 20 | |
51e4e7fa | 21 | #if IS_ENABLED(CONFIG_NETPRIO_CGROUP) |
5bc1421e NH |
22 | struct netprio_map { |
23 | struct rcu_head rcu; | |
24 | u32 priomap_len; | |
25 | u32 priomap[]; | |
26 | }; | |
27 | ||
8c215228 NH |
28 | struct cgroup_netprio_state { |
29 | struct cgroup_subsys_state css; | |
8c215228 NH |
30 | }; |
31 | ||
406a3c63 | 32 | extern void sock_update_netprioidx(struct sock *sk, struct task_struct *task); |
5bc1421e | 33 | |
2b73bc65 NH |
34 | #if IS_BUILTIN(CONFIG_NETPRIO_CGROUP) |
35 | ||
36 | static inline u32 task_netprioidx(struct task_struct *p) | |
5bc1421e | 37 | { |
88d642fa | 38 | struct cgroup_subsys_state *css; |
2b73bc65 NH |
39 | u32 idx; |
40 | ||
41 | rcu_read_lock(); | |
88d642fa TH |
42 | css = task_subsys_state(p, net_prio_subsys_id); |
43 | idx = css->cgroup->id; | |
2b73bc65 NH |
44 | rcu_read_unlock(); |
45 | return idx; | |
46 | } | |
47 | ||
48 | #elif IS_MODULE(CONFIG_NETPRIO_CGROUP) | |
49 | ||
50 | static inline u32 task_netprioidx(struct task_struct *p) | |
51 | { | |
8a8e04df | 52 | struct cgroup_subsys_state *css; |
2b73bc65 NH |
53 | u32 idx = 0; |
54 | ||
55 | rcu_read_lock(); | |
8a8e04df DW |
56 | css = task_subsys_state(p, net_prio_subsys_id); |
57 | if (css) | |
88d642fa | 58 | idx = css->cgroup->id; |
2b73bc65 NH |
59 | rcu_read_unlock(); |
60 | return idx; | |
5bc1421e | 61 | } |
51e4e7fa | 62 | #endif |
5bc1421e | 63 | |
51e4e7fa | 64 | #else /* !CONFIG_NETPRIO_CGROUP */ |
5bc1421e | 65 | |
2b73bc65 NH |
66 | static inline u32 task_netprioidx(struct task_struct *p) |
67 | { | |
68 | return 0; | |
69 | } | |
70 | ||
406a3c63 | 71 | #define sock_update_netprioidx(sk, task) |
51e4e7fa DW |
72 | |
73 | #endif /* CONFIG_NETPRIO_CGROUP */ | |
5bc1421e NH |
74 | |
75 | #endif /* _NET_CLS_CGROUP_H */ |