59 struct pid  struct
69 extern struct pid init_struct_pid;  argument
74 	struct pid *pid;  member
77 static inline struct pid *get_pid(struct pid *pid)  in get_pid()  argument
79 	if (pid)  in get_pid()
80 		atomic_inc(&pid->count);  in get_pid()
81 	return pid;  in get_pid()
84 extern void put_pid(struct pid *pid);
85 extern struct task_struct *pid_task(struct pid *pid, enum pid_type);
86 extern struct task_struct *get_pid_task(struct pid *pid, enum pid_type);
88 extern struct pid *get_task_pid(struct task_struct *task, enum pid_type type);
95 			struct pid *pid);
98 			struct pid *pid);
114 extern struct pid *find_pid_ns(int nr, struct pid_namespace *ns);
115 extern struct pid *find_vpid(int nr);
120 extern struct pid *find_get_pid(int nr);
121 extern struct pid *find_ge_pid(int nr, struct pid_namespace *);
124 extern struct pid *alloc_pid(struct pid_namespace *ns);
125 extern void free_pid(struct pid *pid);
138 static inline struct pid_namespace *ns_of_pid(struct pid *pid)  in ns_of_pid()  argument
141 	if (pid)  in ns_of_pid()
142 		ns = pid->numbers[pid->level].ns;  in ns_of_pid()
152 static inline bool is_child_reaper(struct pid *pid)  in is_child_reaper()  argument
154 	return pid->numbers[pid->level].nr == 1;  in is_child_reaper()
168 static inline pid_t pid_nr(struct pid *pid)  in pid_nr()  argument
171 	if (pid)  in pid_nr()
172 		nr = pid->numbers[0].nr;  in pid_nr()
176 pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns);
177 pid_t pid_vnr(struct pid *pid);
179 #define do_each_pid_task(pid, type, task)				\  argument
181 		if ((pid) != NULL)					\
183 				&(pid)->tasks[type], pids[type].node) {
189 #define while_each_pid_task(pid, type, task)				\  argument
195 #define do_each_pid_thread(pid, type, task)				\  argument
196 	do_each_pid_task(pid, type, task) {				\
200 #define while_each_pid_thread(pid, type, task)				\  argument
203 	} while_each_pid_task(pid, type, task)