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-rw-r--r--tools/perf/util/thread.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 632e40e5ceca..40399cbcca77 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -14,6 +14,7 @@ struct thread *thread__new(pid_t pid)
if (self != NULL) {
map_groups__init(&self->mg);
self->pid = pid;
+ self->ppid = -1;
self->comm = malloc(32);
if (self->comm)
snprintf(self->comm, 32, ":%d", self->pid);
@@ -82,5 +83,8 @@ int thread__fork(struct thread *self, struct thread *parent)
for (i = 0; i < MAP__NR_TYPES; ++i)
if (map_groups__clone(&self->mg, &parent->mg, i) < 0)
return -ENOMEM;
+
+ self->ppid = parent->pid;
+
return 0;
}