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authorDongsheng Yang <yangds.fnst@cn.fujitsu.com>2013-12-21 00:52:59 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-12-23 23:49:50 +0400
commitf5db57c4c47f3985dfc677152e25636a3401fa13 (patch)
tree81da5bd51b3a6c7fb72fae902a049d8565c4c15c /tools/perf/util
parent73547aacdcd45cdf8b53245ded9593d7c587501a (diff)
downloadlinux-f5db57c4c47f3985dfc677152e25636a3401fa13.tar.xz
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 <yangds.fnst@cn.fujitsu.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Link: http://lkml.kernel.org/r/22455abe107c618a361e7b667ad0f098f7c9b4a3.1387572416.git.yangds.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/event.c8
1 files 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;