projects / deliverable / linux.git / blame
| 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; | |
| 30 | u32 prioidx; | |
| 31 | }; | |
| 32 | ||
| 406a3c63 | 33 | extern void sock_update_netprioidx(struct sock *sk, struct task_struct *task); |
| 5bc1421e | 34 | |
| 2b73bc65 NH |
35 | #if IS_BUILTIN(CONFIG_NETPRIO_CGROUP) |
| 36 | ||
| 37 | static inline u32 task_netprioidx(struct task_struct *p) | |
| 5bc1421e | 38 | { |
| 2b73bc65 NH |
39 | struct cgroup_netprio_state *state; |
| 40 | u32 idx; | |
| 41 | ||
| 42 | rcu_read_lock(); | |
| 43 | state = container_of(task_subsys_state(p, net_prio_subsys_id), | |
| 44 | struct cgroup_netprio_state, css); | |
| 45 | idx = state->prioidx; | |
| 46 | rcu_read_unlock(); | |
| 47 | return idx; | |
| 48 | } | |
| 49 | ||
| 50 | #elif IS_MODULE(CONFIG_NETPRIO_CGROUP) | |
| 51 | ||
| 52 | static inline u32 task_netprioidx(struct task_struct *p) | |
| 53 | { | |
| 8a8e04df | 54 | struct cgroup_subsys_state *css; |
| 2b73bc65 NH |
55 | u32 idx = 0; |
| 56 | ||
| 57 | rcu_read_lock(); | |
| 8a8e04df DW |
58 | css = task_subsys_state(p, net_prio_subsys_id); |
| 59 | if (css) | |
| 60 | idx = container_of(css, | |
| 61 | struct cgroup_netprio_state, css)->prioidx; | |
| 2b73bc65 NH |
62 | rcu_read_unlock(); |
| 63 | return idx; | |
| 5bc1421e | 64 | } |
| 51e4e7fa | 65 | #endif |
| 5bc1421e | 66 | |
| 51e4e7fa | 67 | #else /* !CONFIG_NETPRIO_CGROUP */ |
| 5bc1421e | 68 | |
| 2b73bc65 NH |
69 | static inline u32 task_netprioidx(struct task_struct *p) |
| 70 | { | |
| 71 | return 0; | |
| 72 | } | |
| 73 | ||
| 406a3c63 | 74 | #define sock_update_netprioidx(sk, task) |
| 51e4e7fa DW |
75 | |
| 76 | #endif /* CONFIG_NETPRIO_CGROUP */ | |
| 5bc1421e NH |
77 | |
| 78 | #endif /* _NET_CLS_CGROUP_H */ |