[CRIU] [PATCH 1/2] mount: don't destruct an external mount-namespace

[Cyrill Gorcunov]

On Thu, Jul 04, 2013 at 03:21:10PM +0400, Andrey Vagin wrote:
> @@ -634,6 +634,8 @@ static int do_umount_one(struct mount_info *mi)
>  	if (!mi->parent)
>  		return 0;
>  
> +	if ( mount("none", mi->parent->mountpoint, "none", MS_REC|MS_PRIVATE, NULL))
> +		pr_perror("Can't mark %s as private", mi->parent->mountpoint);
>  	if (umount(mi->mountpoint)) {
>  		pr_perror("Can't umount at %s", mi->mountpoint);
>  		return -1;

IOW the only point of this patch to print error but continue?