linux-kernel - [patchlet][resend] sched: Fix up /proc/sched_debug to print only runnable tasks again

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Message-ID: <1401801261.5788.2.camel@marge.simpson.net>
Date:	Tue, 03 Jun 2014 15:14:21 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>
Subject: [patchlet][resend] sched: Fix up /proc/sched_debug to print only
 runnable tasks again


Commit b32e86b430 dropped p->on_rq check, leading to printing tasks which
used to live on runqueues, which is very noisy and highly annoying.

Signed-off-by: Mike Galbraith <bitbucket@...ine.de>
---
 kernel/sched/debug.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -162,7 +162,7 @@ static void print_rq(struct seq_file *m,
 	read_lock_irqsave(&tasklist_lock, flags);
 
 	do_each_thread(g, p) {
-		if (task_cpu(p) != rq_cpu)
+		if (!p->on_rq || task_cpu(p) != rq_cpu)
 			continue;
 
 		print_task(m, rq, p);


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