183 	struct pid *pgrp;  in SYSCALL_DEFINE3()
253 	struct pid *pgrp;  in SYSCALL_DEFINE2()
851 	int pid;  in SYSCALL_DEFINE0()  local
854 	pid = task_tgid_vnr(rcu_dereference(current->real_parent));  in SYSCALL_DEFINE0()
857 	return pid;  in SYSCALL_DEFINE0()
921 SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid)  in SYSCALL_DEFINE2()  argument
925 	struct pid *pgrp;  in SYSCALL_DEFINE2()
928 	if (!pid)  in SYSCALL_DEFINE2()
929 		pid = task_pid_vnr(group_leader);  in SYSCALL_DEFINE2()
931 		pgid = pid;  in SYSCALL_DEFINE2()
942 	p = find_task_by_vpid(pid);  in SYSCALL_DEFINE2()
968 	if (pgid != pid) {  in SYSCALL_DEFINE2()
992 SYSCALL_DEFINE1(getpgid, pid_t, pid)  in SYSCALL_DEFINE1()  argument
995 	struct pid *grp;  in SYSCALL_DEFINE1()
999 	if (!pid)  in SYSCALL_DEFINE1()
1003 		p = find_task_by_vpid(pid);  in SYSCALL_DEFINE1()
1029 SYSCALL_DEFINE1(getsid, pid_t, pid)  in SYSCALL_DEFINE1()  argument
1032 	struct pid *sid;  in SYSCALL_DEFINE1()
1036 	if (!pid)  in SYSCALL_DEFINE1()
1040 		p = find_task_by_vpid(pid);  in SYSCALL_DEFINE1()
1057 static void set_special_pids(struct pid *pid)  in set_special_pids()  argument
1061 	if (task_session(curr) != pid)  in set_special_pids()
1062 		change_pid(curr, PIDTYPE_SID, pid);  in set_special_pids()
1064 	if (task_pgrp(curr) != pid)  in set_special_pids()
1065 		change_pid(curr, PIDTYPE_PGID, pid);  in set_special_pids()
1071 	struct pid *sid = task_pid(group_leader);  in SYSCALL_DEFINE0()
1450 SYSCALL_DEFINE4(prlimit64, pid_t, pid, unsigned int, resource,  in SYSCALL_DEFINE4()  argument
1466 	tsk = pid ? find_task_by_vpid(pid) : current;  in SYSCALL_DEFINE4()