[CRIU] [PATCH 2/2] zdtm/mountpoints: wait when a child process opens descriptors

[Andrey Vagin]

From: Andrew Vagin <avagin at virtuozzo.com>

Otherwise we can see this error:
5: Old files lost: set([])
5: New files appeared: set(['5', '6'])

Reported-by: Mr Jenkins
Signed-off-by: Andrew Vagin <avagin at virtuozzo.com>
---
 test/zdtm/live/static/mountpoints.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/test/zdtm/live/static/mountpoints.c b/test/zdtm/live/static/mountpoints.c
index f76770b..042deeb 100644
--- a/test/zdtm/live/static/mountpoints.c
+++ b/test/zdtm/live/static/mountpoints.c
@@ -25,6 +25,8 @@ struct ns_exec_args {
 	int status_pipe[2];
 };
 
+task_waiter_t t;
+
 int ns_child(void *_arg)
 {
 	struct stat st;
@@ -50,6 +52,8 @@ int ns_child(void *_arg)
 
 	pid = fork();
 
+	task_waiter_complete(&t, 1);
+
 	test_waitsig();
 
 	if (pid) {
@@ -76,6 +80,8 @@ int main(int argc, char **argv)
 
 	test_init(argc, argv);
 
+	task_waiter_init(&t);
+
 	rmdir(MPTS_ROOT);
 	if (mkdir(MPTS_ROOT, 0600) < 0) {
 		fail("Can't make zdtm_sys");
@@ -225,6 +231,8 @@ int main(int argc, char **argv)
 		}
 	}
 
+	task_waiter_wait4(&t, 1);
+
 	test_daemon();
 	test_waitsig();
 
-- 
2.4.3