From: Roland McGrath <roland@redhat.com>
Date: Wed, 9 Jan 2008 08:03:23 +0000 (-0800)
Subject: show_task: real_parent
X-Git-Tag: firefly_0821_release~23857
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fcfd50afb6e94c8cf121ca4e7e3e7166bae7c6aa;p=firefly-linux-kernel-4.4.55.git

show_task: real_parent

The show_task function invoked by sysrq-t et al displays the
pid and parent's pid of each task.  It seems more useful to
show the actual process hierarchy here than who is using
ptrace on each process.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/kernel/sched.c b/kernel/sched.c
index 3df84ea6aba9..37cf07aa4164 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4918,7 +4918,7 @@ static void show_task(struct task_struct *p)
 	}
 #endif
 	printk(KERN_CONT "%5lu %5d %6d\n", free,
-		task_pid_nr(p), task_pid_nr(p->parent));
+		task_pid_nr(p), task_pid_nr(p->real_parent));
 
 	if (state != TASK_RUNNING)
 		show_stack(p, NULL);