[trivial] Print tracer PID in /proc/<pid>/status

[Daniel Jacobowitz]

We've got a labeled field for showing which process is debugging this one,
but we weren't filling it in.  This is useful in working on the ptrace
code... please apply.

===== array.c 1.26 vs edited =====
--- 1.26/fs/proc/array.c	Wed Jul 24 21:36:09 2002
+++ edited/array.c	Thu Sep  5 16:38:35 2002
@@ -160,7 +160,8 @@
 		"Uid:\t%d\t%d\t%d\t%d\n"
 		"Gid:\t%d\t%d\t%d\t%d\n",
 		get_task_state(p), p->tgid,
-		p->pid, p->pid ? p->real_parent->pid : 0, 0,
+		p->pid, p->pid ? p->real_parent->pid : 0,
+		p->pid && p->ptrace ? p->parent->pid : 0,
 		p->uid, p->euid, p->suid, p->fsuid,
 		p->gid, p->egid, p->sgid, p->fsgid);
 	read_unlock(&tasklist_lock);	

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer