projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| eb414681 JW |
1 | #ifndef _LINUX_PSI_H |
| 2 | #define _LINUX_PSI_H | |
| 3 | ||
| e0c27447 | 4 | #include <linux/jump_label.h> |
| eb414681 JW |
5 | #include <linux/psi_types.h> |
| 6 | #include <linux/sched.h> | |
| 7 | ||
| 2ce7135a JW |
8 | struct seq_file; |
| 9 | struct css_set; | |
| 10 | ||
| eb414681 JW |
11 | #ifdef CONFIG_PSI |
| 12 | ||
| e0c27447 | 13 | extern struct static_key_false psi_disabled; |
| eb414681 JW |
14 | |
| 15 | void psi_init(void); | |
| 16 | ||
| 17 | void psi_task_change(struct task_struct *task, int clear, int set); | |
| 18 | ||
| 19 | void psi_memstall_tick(struct task_struct *task, int cpu); | |
| 20 | void psi_memstall_enter(unsigned long *flags); | |
| 21 | void psi_memstall_leave(unsigned long *flags); | |
| 22 | ||
| 2ce7135a JW |
23 | int psi_show(struct seq_file *s, struct psi_group *group, enum psi_res res); |
| 24 | ||
| 25 | #ifdef CONFIG_CGROUPS | |
| 26 | int psi_cgroup_alloc(struct cgroup *cgrp); | |
| 27 | void psi_cgroup_free(struct cgroup *cgrp); | |
| 28 | void cgroup_move_task(struct task_struct *p, struct css_set *to); | |
| 29 | #endif | |
| 30 | ||
| eb414681 JW |
31 | #else /* CONFIG_PSI */ |
| 32 | ||
| 33 | static inline void psi_init(void) {} | |
| 34 | ||
| 35 | static inline void psi_memstall_enter(unsigned long *flags) {} | |
| 36 | static inline void psi_memstall_leave(unsigned long *flags) {} | |
| 37 | ||
| 2ce7135a JW |
38 | #ifdef CONFIG_CGROUPS |
| 39 | static inline int psi_cgroup_alloc(struct cgroup *cgrp) | |
| 40 | { | |
| 41 | return 0; | |
| 42 | } | |
| 43 | static inline void psi_cgroup_free(struct cgroup *cgrp) | |
| 44 | { | |
| 45 | } | |
| 46 | static inline void cgroup_move_task(struct task_struct *p, struct css_set *to) | |
| 47 | { | |
| 48 | rcu_assign_pointer(p->cgroups, to); | |
| 49 | } | |
| 50 | #endif | |
| 51 | ||
| eb414681 JW |
52 | #endif /* CONFIG_PSI */ |
| 53 | ||
| 54 | #endif /* _LINUX_PSI_H */ |