[LTP] [PATCH] syslog11: fix console loglevel changed after test

[Cyril Hrubis]

Hi!
> the console loglevel is force to be 7(LOGLEVEL_DEFAULT) after test,
> which is not the desired behavior.So we reset the console loglevel
> to its original value after the test body.The method what we take
> is just same as commit:
> a2ff1c2d141d ("kmsg01: set/restore console log level").

First of all the test is mess, it would be nice to clean it up first and
convert it to the new library.

> Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn>
> Signed-off-by: Lingling Li <lilingling@loongson.cn>
> ---
>  testcases/kernel/syscalls/syslog/syslog11.c | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 
> diff --git a/testcases/kernel/syscalls/syslog/syslog11.c b/testcases/kernel/syscalls/syslog/syslog11.c
> index b9540ef..78a7cc4 100644
> --- a/testcases/kernel/syscalls/syslog/syslog11.c
> +++ b/testcases/kernel/syscalls/syslog/syslog11.c
> @@ -84,6 +84,11 @@ struct test_case_t {		/* test case structure */
>  	char *desc;		/* Test description */
>  };
>  
> +#define PRINTK "/proc/sys/kernel/printk"
> +#define CONSOLE_LOGLEVEL_QUIET   4
> +
> +static int console_loglevel = -1;
> +
>  char *TCID = "syslog11";
>  static int testno;
>  static char buf;
> @@ -195,6 +200,11 @@ void setup(void)
>  		tst_brkm(TBROK, NULL, "nobody user id doesn't exist");
>  	}
>  
> +	if (access(PRINTK, F_OK) == 0) {
> +		SAFE_FILE_SCANF(NULL, PRINTK, "%d", &console_loglevel);
> +		SAFE_FILE_PRINTF(NULL, PRINTK, "%d", CONSOLE_LOGLEVEL_QUIET);

Do we need to set the loglevel at the start of the test here?

> +	}
> +
>  	/* Pause if that option was specified
>  	 * TEST_PAUSE contains the code to fork the test with the -c option.
>  	 */
> @@ -208,5 +218,6 @@ void setup(void)
>   */
>  void cleanup(void)
>  {
> -
> +	if (console_loglevel != -1)
> +		SAFE_FILE_PRINTF(NULL, PRINTK, "%d", console_loglevel);
>  }
> -- 
> 1.8.3.1
> 

-- 
Cyril Hrubis
chrubis@suse.cz