4 #include <linux/jump_label.h>
5 #include <linux/psi_types.h>
6 #include <linux/sched.h>
7 #include <linux/poll.h>
14 extern struct static_key_false psi_disabled
;
15 extern struct psi_group psi_system
;
19 void psi_task_change(struct task_struct
*task
, int clear
, int set
);
21 void psi_memstall_tick(struct task_struct
*task
, int cpu
);
22 void psi_memstall_enter(unsigned long *flags
);
23 void psi_memstall_leave(unsigned long *flags
);
25 int psi_show(struct seq_file
*s
, struct psi_group
*group
, enum psi_res res
);
28 int psi_cgroup_alloc(struct cgroup
*cgrp
);
29 void psi_cgroup_free(struct cgroup
*cgrp
);
30 void cgroup_move_task(struct task_struct
*p
, struct css_set
*to
);
32 struct psi_trigger
*psi_trigger_create(struct psi_group
*group
,
33 char *buf
, size_t nbytes
, enum psi_res res
);
34 void psi_trigger_replace(void **trigger_ptr
, struct psi_trigger
*t
);
36 __poll_t
psi_trigger_poll(void **trigger_ptr
, struct file
*file
,
40 #else /* CONFIG_PSI */
42 static inline void psi_init(void) {}
44 static inline void psi_memstall_enter(unsigned long *flags
) {}
45 static inline void psi_memstall_leave(unsigned long *flags
) {}
48 static inline int psi_cgroup_alloc(struct cgroup
*cgrp
)
52 static inline void psi_cgroup_free(struct cgroup
*cgrp
)
55 static inline void cgroup_move_task(struct task_struct
*p
, struct css_set
*to
)
57 rcu_assign_pointer(p
->cgroups
, to
);
61 #endif /* CONFIG_PSI */
63 #endif /* _LINUX_PSI_H */