57 struct pid  struct
67 extern struct pid init_struct_pid;  argument
72 	struct pid *pid;  member
75 static inline struct pid *get_pid(struct pid *pid)  in get_pid()  argument
77 	if (pid)  in get_pid()
78 		atomic_inc(&pid->count);  in get_pid()
79 	return pid;  in get_pid()
82 extern void put_pid(struct pid *pid);
83 extern struct task_struct *pid_task(struct pid *pid, enum pid_type);
84 extern struct task_struct *get_pid_task(struct pid *pid, enum pid_type);
86 extern struct pid *get_task_pid(struct task_struct *task, enum pid_type type);
94 			struct pid *pid);
110 extern struct pid *find_pid_ns(int nr, struct pid_namespace *ns);
111 extern struct pid *find_vpid(int nr);
116 extern struct pid *find_get_pid(int nr);
117 extern struct pid *find_ge_pid(int nr, struct pid_namespace *);
120 extern struct pid *alloc_pid(struct pid_namespace *ns);
121 extern void free_pid(struct pid *pid);
134 static inline struct pid_namespace *ns_of_pid(struct pid *pid)  in ns_of_pid()  argument
137 	if (pid)  in ns_of_pid()
138 		ns = pid->numbers[pid->level].ns;  in ns_of_pid()
148 static inline bool is_child_reaper(struct pid *pid)  in is_child_reaper()  argument
150 	return pid->numbers[pid->level].nr == 1;  in is_child_reaper()
164 static inline pid_t pid_nr(struct pid *pid)  in pid_nr()  argument
167 	if (pid)  in pid_nr()
168 		nr = pid->numbers[0].nr;  in pid_nr()
172 pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns);
173 pid_t pid_vnr(struct pid *pid);
175 #define do_each_pid_task(pid, type, task)				\  argument
177 		if ((pid) != NULL)					\
179 				&(pid)->tasks[type], pids[type].node) {
185 #define while_each_pid_task(pid, type, task)				\  argument
191 #define do_each_pid_thread(pid, type, task)				\  argument
192 	do_each_pid_task(pid, type, task) {				\
196 #define while_each_pid_thread(pid, type, task)				\  argument
199 	} while_each_pid_task(pid, type, task)