218 	struct pid *pgrp;  in SYSCALL_DEFINE3()
288 	struct pid *pgrp;  in SYSCALL_DEFINE2()
971 	int pid;  in SYSCALL_DEFINE0()  local
974 	pid = task_tgid_vnr(rcu_dereference(current->real_parent));  in SYSCALL_DEFINE0()
977 	return pid;  in SYSCALL_DEFINE0()
1067 SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid)  in SYSCALL_DEFINE2()  argument
1071 	struct pid *pgrp;  in SYSCALL_DEFINE2()
1074 	if (!pid)  in SYSCALL_DEFINE2()
1075 		pid = task_pid_vnr(group_leader);  in SYSCALL_DEFINE2()
1077 		pgid = pid;  in SYSCALL_DEFINE2()
1088 	p = find_task_by_vpid(pid);  in SYSCALL_DEFINE2()
1114 	if (pgid != pid) {  in SYSCALL_DEFINE2()
1138 static int do_getpgid(pid_t pid)  in do_getpgid()  argument
1141 	struct pid *grp;  in do_getpgid()
1145 	if (!pid)  in do_getpgid()
1149 		p = find_task_by_vpid(pid);  in do_getpgid()
1166 SYSCALL_DEFINE1(getpgid, pid_t, pid)  in SYSCALL_DEFINE1()  argument
1168 	return do_getpgid(pid);  in SYSCALL_DEFINE1()
1180 SYSCALL_DEFINE1(getsid, pid_t, pid)  in SYSCALL_DEFINE1()  argument
1183 	struct pid *sid;  in SYSCALL_DEFINE1()
1187 	if (!pid)  in SYSCALL_DEFINE1()
1191 		p = find_task_by_vpid(pid);  in SYSCALL_DEFINE1()
1208 static void set_special_pids(struct pid *pid)  in set_special_pids()  argument
1212 	if (task_session(curr) != pid)  in set_special_pids()
1213 		change_pid(curr, PIDTYPE_SID, pid);  in set_special_pids()
1215 	if (task_pgrp(curr) != pid)  in set_special_pids()
1216 		change_pid(curr, PIDTYPE_PGID, pid);  in set_special_pids()
1222 	struct pid *sid = task_pid(group_leader);  in ksys_setsid()
1671 SYSCALL_DEFINE4(prlimit64, pid_t, pid, unsigned int, resource,  in SYSCALL_DEFINE4()  argument
1692 	tsk = pid ? find_task_by_vpid(pid) : current;  in SYSCALL_DEFINE4()