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

[Pavel Emelyanov]

On 12/18/2015 10:17 PM, Andrey Vagin wrote:
> 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");

This hunk doesn't apply.

> @@ -225,6 +231,8 @@ int main(int argc, char **argv)
>  		}
>  	}
>  
> +	task_waiter_wait4(&t, 1);
> +
>  	test_daemon();
>  	test_waitsig();
>  
>