From: Dongsheng Yang <yangds.f...@cn.fujitsu.com>

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 <yangds.f...@cn.fujitsu.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Namhyung Kim <namhyung....@lge.com>
Link: 
http://lkml.kernel.org/r/22455abe107c618a361e7b667ad0f098f7c9b4a3.1387572416.git.yangds.f...@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 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;
 
-- 
1.8.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to