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 <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
CC: <[email protected]>
LKML-Reference: <20100116125319.34ac3edd@infradead.org>
Signed-off-by: Ingo Molnar <[email protected]>

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index a589a43112d67f7b764ae02365a1b53e2e8119a7..3f8bbcfb1e9bcd0fed97470a38e918f9b7677230 100644 (file)
--- 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;
 }