57 struct pid  struct
67 extern struct pid init_struct_pid;  argument
69 static inline struct pid *get_pid(struct pid *pid)  in get_pid()  argument
71 	if (pid)  in get_pid()
72 		atomic_inc(&pid->count);  in get_pid()
73 	return pid;  in get_pid()
76 extern void put_pid(struct pid *pid);
77 extern struct task_struct *pid_task(struct pid *pid, enum pid_type);
78 extern struct task_struct *get_pid_task(struct pid *pid, enum pid_type);
80 extern struct pid *get_task_pid(struct task_struct *task, enum pid_type type);
88 			struct pid *pid);
104 extern struct pid *find_pid_ns(int nr, struct pid_namespace *ns);
105 extern struct pid *find_vpid(int nr);
110 extern struct pid *find_get_pid(int nr);
111 extern struct pid *find_ge_pid(int nr, struct pid_namespace *);
114 extern struct pid *alloc_pid(struct pid_namespace *ns);
115 extern void free_pid(struct pid *pid);
128 static inline struct pid_namespace *ns_of_pid(struct pid *pid)  in ns_of_pid()  argument
131 	if (pid)  in ns_of_pid()
132 		ns = pid->numbers[pid->level].ns;  in ns_of_pid()
142 static inline bool is_child_reaper(struct pid *pid)  in is_child_reaper()  argument
144 	return pid->numbers[pid->level].nr == 1;  in is_child_reaper()
158 static inline pid_t pid_nr(struct pid *pid)  in pid_nr()  argument
161 	if (pid)  in pid_nr()
162 		nr = pid->numbers[0].nr;  in pid_nr()
166 pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns);
167 pid_t pid_vnr(struct pid *pid);
169 #define do_each_pid_task(pid, type, task)				\  argument
171 		if ((pid) != NULL)					\
173 				&(pid)->tasks[type], pid_links[type]) {
179 #define while_each_pid_task(pid, type, task)				\  argument
185 #define do_each_pid_thread(pid, type, task)				\  argument
186 	do_each_pid_task(pid, type, task) {				\
190 #define while_each_pid_thread(pid, type, task)				\  argument
193 	} while_each_pid_task(pid, type, task)