From 5a20267b12fec85520acc1e839ee61f2ea16413d Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Sat, 16 Jan 2010 12:53:19 -0800
Subject: [PATCH] perf timechart: Use tid not pid for COMM change

commit 8f06d7e6e1bbfb32698d6d455583ab7460c090e2 upstream.

A process that changes its comm field, does this on a per kernel
task struct basis. The timechart tool used, incorrectly, the pid
to track this, and should have used the tid instead...

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100116125319.34ac3edd@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 tools/perf/builtin-timechart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index e8a510d935e5..4101afeb4675 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -275,7 +275,7 @@ static u64 cpus_pstate_state[MAX_CPUS];
 static int
 process_comm_event(event_t *event)
 {
-	pid_set_comm(event->comm.pid, event->comm.comm);
+	pid_set_comm(event->comm.tid, event->comm.comm);
 	return 0;
 }
 static int
-- 
2.34.1