diff options
Diffstat (limited to 'include/linux/pid.h')
| -rw-r--r-- | include/linux/pid.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/pid.h b/include/linux/pid.h index 998ae7d24450..343abf22092e 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -60,8 +60,10 @@ struct pid { refcount_t count; unsigned int level; + spinlock_t lock; /* lists of tasks that use this pid */ struct hlist_head tasks[PIDTYPE_MAX]; + struct hlist_head inodes; /* wait queue for pidfd notifications */ wait_queue_head_t wait_pidfd; struct rcu_head rcu; @@ -75,6 +77,9 @@ extern const struct file_operations pidfd_fops; struct file; extern struct pid *pidfd_pid(const struct file *file); +struct pid *pidfd_get_pid(unsigned int fd, unsigned int *flags); +struct task_struct *pidfd_get_task(int pidfd, unsigned int *flags); +int pidfd_create(struct pid *pid, unsigned int flags); static inline struct pid *get_pid(struct pid *pid) { @@ -100,12 +105,16 @@ extern void attach_pid(struct task_struct *task, enum pid_type); extern void detach_pid(struct task_struct *task, enum pid_type); extern void change_pid(struct task_struct *task, enum pid_type, struct pid *pid); +extern void exchange_tids(struct task_struct *task, struct task_struct *old); extern void transfer_pid(struct task_struct *old, struct task_struct *new, enum pid_type); struct pid_namespace; extern struct pid_namespace init_pid_ns; +extern int pid_max; +extern int pid_max_min, pid_max_max; + /* * look up a PID in the hash table. Must be called with the tasklist_lock * or rcu_read_lock() held. |