linux-kernel - [PATCH] perf timechart: Use tid not pid for COMM change

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Message-ID: <20100116125319.34ac3edd@infradead.org>
Date:	Sat, 16 Jan 2010 12:53:19 -0800
From:	Arjan van de Ven <arjan@...radead.org>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu
Subject: [PATCH] perf timechart: Use tid not pid for COMM change

>From 3e519cea7bbc7c6a3c07e3a24e9f33bf15305516 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@...ux.intel.com>
Date: Sat, 16 Jan 2010 12:51:30 -0800
Subject: [PATCH] perf timechart: Use tid not pid for COMM change

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@...ux.intel.com>
CC: stable@...nel.org
---
 tools/perf/builtin-timechart.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index a589a43..3f8bbcf 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -280,7 +280,7 @@ static u64 cpus_pstate_state[MAX_CPUS];
 
 static int process_comm_event(event_t *event, struct perf_session *session __used)
 {
-	pid_set_comm(event->comm.pid, event->comm.comm);
+	pid_set_comm(event->comm.tid, event->comm.comm);
 	return 0;
 }
 
-- 
1.6.2.5



-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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