1 files changed, 9 insertions, 1 deletions

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 99b43dd18c57..8065ce8fa9a5 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -821,6 +821,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
                 goto out_close_pipes;
         }
 
+        fcntl(go_pipe[1], F_SETFD, FD_CLOEXEC);
         evlist->workload.cork_fd = go_pipe[1];
         close(child_ready_pipe[0]);
         return 0;
@@ -837,10 +838,17 @@ out_close_ready_pipe:
 int perf_evlist__start_workload(struct perf_evlist *evlist)
 {
         if (evlist->workload.cork_fd > 0) {
+                char bf;
+                int ret;
                 /*
                  * Remove the cork, let it rip!
                  */
-                return close(evlist->workload.cork_fd);
+                ret = write(evlist->workload.cork_fd, &bf, 1);
+                if (ret < 0)
+                        perror("enable to write to pipe");
+
+                close(evlist->workload.cork_fd);
+                return ret;
         }
 
         return 0;