From f5db57c4c47f3985dfc677152e25636a3401fa13 Mon Sep 17 00:00:00 2001 From: Dongsheng Yang Date: Fri, 20 Dec 2013 15:52:59 -0500 Subject: [PATCH] perf tools: Use machine->pid for tgid if machine is guest. When we synthesize an comm event, if machine is guest, we should use the pid of machine as the event->comm.pid, rather than tgid of thread. Signed-off-by: Dongsheng Yang Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/22455abe107c618a361e7b667ad0f098f7c9b4a3.1387572416.git.yangds.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/event.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 07c07833de53..2905771a1f49 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -106,8 +106,12 @@ static pid_t perf_event__synthesize_comm(struct perf_tool *tool, memset(&event->comm, 0, sizeof(event->comm)); - tgid = perf_event__get_comm_tgid(pid, event->comm.comm, - sizeof(event->comm.comm)); + if (machine__is_host(machine)) + tgid = perf_event__get_comm_tgid(pid, event->comm.comm, + sizeof(event->comm.comm)); + else + tgid = machine->pid; + if (tgid < 0) goto out; -- 2.11.0