Use task_pgrp_vnr not task_pgrp_nr so we return the process id the processes
pid namespace and not in the initial pid namespace.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
        
        switch (cmd) {
        case 0: /* getpgrp */
-               return task_pgrp_nr(current);
+               return task_pgrp_vnr(current);
        case 1: /* setpgrp */
                {
                        int (*sys_setpgid)(pid_t,pid_t) =
                        ret = sys_setpgid(0, 0);
                        if (ret) return ret;
                        proc_clear_tty(current);
-                       return task_pgrp_nr(current);
+                       return task_pgrp_vnr(current);
                }
        case 2: /* getsid */
                {