[LTP] [PATCH v2 8/8] Rewrite userns08.c using new LTP API

[Petr Vorel]

Hi Andrea,

[Cc Richie]

This subject: "Rewrite userns08.c using new LTP API" is misleading,
userns08.c was already using new API.

You're:
* s/tst_res/tst_brk/ (that would deserve explanation why)
* removing tst_reap_children()
* changing formatting (some of them create too long lines)

...
>  static pid_t clone_newuser(void)
>  {
> -	const struct tst_clone_args cargs = {
> -		CLONE_NEWUSER,
> -		SIGCHLD
> -	};
> +	const struct tst_clone_args cargs = { CLONE_NEWUSER, SIGCHLD };

>  	return SAFE_CLONE(&cargs);
>  }

> -static void write_mapping(const pid_t proc_in_ns,
> -			  const char *const id_mapping)
> +static void write_mapping(const pid_t proc_in_ns, const char *const id_mapping)
>  {
>  	char proc_path[PATH_MAX];
>  	int proc_dir;
> @@ -61,11 +58,11 @@ static void write_mapping(const pid_t proc_in_ns,
>  static void ns_level2(void)
>  {
>  	if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0))
> -		tst_res(TINFO | TERRNO, "Failed to set dumpable flag");
> +		tst_brk(TBROK | TTERRNO, "Failed to set dumpable flag");
Not sure which one is correct (whether tst_res or tst_brk).
But TTERRNO is obviously wrong, that's for using TEST(). Here should remain
TERRNO.

> +
>  	TST_CHECKPOINT_WAKE_AND_WAIT(1);

> -	TST_EXP_FAIL(open("restricted", O_WRONLY), EACCES,
> -		     "Denied write access to ./restricted");
> +	TST_EXP_FAIL(open("restricted", O_WRONLY), EACCES, "Denied write access to ./restricted");

I'd keep this one.

>  	exit(0);
>  }
> @@ -89,7 +86,6 @@ static void ns_level1(void)
>  	write_mapping(level2_proc, map_over_5);

>  	TST_CHECKPOINT_WAKE(1);
> -	tst_reap_children();
Well, test works without it, but not really sure if it can be removed.

Kind regards,
Petr

>  	exit(0);
>  }
> @@ -111,7 +107,6 @@ static void run(void)
>  	write_mapping(level1_proc, "0 100000 1000");

>  	TST_CHECKPOINT_WAKE(0);
> -	tst_reap_children();