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65 lines
1.6 KiB
65 lines
1.6 KiB
#ifndef _LINUX_PSI_H |
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#define _LINUX_PSI_H |
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#include <linux/jump_label.h> |
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#include <linux/psi_types.h> |
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#include <linux/sched.h> |
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#include <linux/poll.h> |
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struct seq_file; |
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struct css_set; |
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#ifdef CONFIG_PSI |
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extern struct static_key_false psi_disabled; |
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extern struct psi_group psi_system; |
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void psi_init(void); |
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void psi_task_change(struct task_struct *task, int clear, int set); |
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void psi_task_switch(struct task_struct *prev, struct task_struct *next, |
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bool sleep); |
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void psi_memstall_tick(struct task_struct *task, int cpu); |
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void psi_memstall_enter(unsigned long *flags); |
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void psi_memstall_leave(unsigned long *flags); |
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int psi_show(struct seq_file *s, struct psi_group *group, enum psi_res res); |
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#ifdef CONFIG_CGROUPS |
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int psi_cgroup_alloc(struct cgroup *cgrp); |
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void psi_cgroup_free(struct cgroup *cgrp); |
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void cgroup_move_task(struct task_struct *p, struct css_set *to); |
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struct psi_trigger *psi_trigger_create(struct psi_group *group, |
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char *buf, size_t nbytes, enum psi_res res); |
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void psi_trigger_replace(void **trigger_ptr, struct psi_trigger *t); |
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__poll_t psi_trigger_poll(void **trigger_ptr, struct file *file, |
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poll_table *wait); |
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#endif |
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#else /* CONFIG_PSI */ |
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static inline void psi_init(void) {} |
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static inline void psi_memstall_enter(unsigned long *flags) {} |
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static inline void psi_memstall_leave(unsigned long *flags) {} |
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#ifdef CONFIG_CGROUPS |
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static inline int psi_cgroup_alloc(struct cgroup *cgrp) |
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{ |
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return 0; |
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} |
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static inline void psi_cgroup_free(struct cgroup *cgrp) |
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{ |
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} |
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static inline void cgroup_move_task(struct task_struct *p, struct css_set *to) |
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{ |
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rcu_assign_pointer(p->cgroups, to); |
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} |
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#endif |
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#endif /* CONFIG_PSI */ |
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#endif /* _LINUX_PSI_H */
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