diff options
Diffstat (limited to 'include/linux/cgroup.h')
| -rw-r--r-- | include/linux/cgroup.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 9d12757a65b0..c0077adeea83 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -93,6 +93,8 @@ extern struct css_set init_css_set; bool css_has_online_children(struct cgroup_subsys_state *css); struct cgroup_subsys_state *css_from_id(int id, struct cgroup_subsys *ss); +struct cgroup_subsys_state *cgroup_e_css(struct cgroup *cgroup, + struct cgroup_subsys *ss); struct cgroup_subsys_state *cgroup_get_e_css(struct cgroup *cgroup, struct cgroup_subsys *ss); struct cgroup_subsys_state *css_tryget_online_from_dir(struct dentry *dentry, @@ -119,6 +121,7 @@ extern int cgroup_can_fork(struct task_struct *p); extern void cgroup_cancel_fork(struct task_struct *p); extern void cgroup_post_fork(struct task_struct *p); void cgroup_exit(struct task_struct *p); +void cgroup_release(struct task_struct *p); void cgroup_free(struct task_struct *p); int cgroup_init_early(void); @@ -695,6 +698,7 @@ static inline int cgroup_can_fork(struct task_struct *p) { return 0; } static inline void cgroup_cancel_fork(struct task_struct *p) {} static inline void cgroup_post_fork(struct task_struct *p) {} static inline void cgroup_exit(struct task_struct *p) {} +static inline void cgroup_release(struct task_struct *p) {} static inline void cgroup_free(struct task_struct *p) {} static inline int cgroup_init_early(void) { return 0; } @@ -877,4 +881,47 @@ static inline void put_cgroup_ns(struct cgroup_namespace *ns) free_cgroup_ns(ns); } +#ifdef CONFIG_CGROUPS + +void cgroup_enter_frozen(void); +void cgroup_leave_frozen(bool always_leave); +void cgroup_update_frozen(struct cgroup *cgrp); +void cgroup_freeze(struct cgroup *cgrp, bool freeze); +void cgroup_freezer_migrate_task(struct task_struct *task, struct cgroup *src, + struct cgroup *dst); + +static inline bool cgroup_task_freeze(struct task_struct *task) +{ + bool ret; + + if (task->flags & PF_KTHREAD) + return false; + + rcu_read_lock(); + ret = test_bit(CGRP_FREEZE, &task_dfl_cgroup(task)->flags); + rcu_read_unlock(); + + return ret; +} + +static inline bool cgroup_task_frozen(struct task_struct *task) +{ + return task->frozen; +} + +#else /* !CONFIG_CGROUPS */ + +static inline void cgroup_enter_frozen(void) { } +static inline void cgroup_leave_frozen(bool always_leave) { } +static inline bool cgroup_task_freeze(struct task_struct *task) +{ + return false; +} +static inline bool cgroup_task_frozen(struct task_struct *task) +{ + return false; +} + +#endif /* !CONFIG_CGROUPS */ + #endif /* _LINUX_CGROUP_H */ |