[LTP] [PATCH 1/3] swapping01: skip test if zram-swap is being used

[Cyril Hrubis]

Hi!
> ---
>  testcases/kernel/mem/swapping/swapping01.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/testcases/kernel/mem/swapping/swapping01.c b/testcases/kernel/mem/swapping/swapping01.c
> index 392b79d65..29c1e0443 100644
> --- a/testcases/kernel/mem/swapping/swapping01.c
> +++ b/testcases/kernel/mem/swapping/swapping01.c
> @@ -67,6 +67,11 @@ static void test_swapping(void)
>  #ifdef TST_ABI32
>  	tst_brk(TCONF, "test is not designed for 32-bit system.");
>  #endif
> +	int ret;
> +
> +	ret = tst_system("zramctl | grep SWAP");
> +	if (!ret)
> +		tst_brk(TCONF, "zram-swap is being used!");

Actually what the zramctl does is to open the /proc/swaps file and looks
for the /dev/zram* in there. I guess that we can as well read the the
file ourselves...

>  	init_meminfo();
>  
> @@ -155,4 +160,8 @@ static struct tst_test test = {
>  	.needs_root = 1,
>  	.forks_child = 1,
>  	.test_all = test_swapping,
> +	.needs_cmds = (const char *[]) {
> +		"zramctl",
> +		NULL
> +	}
>  };
> -- 
> 2.23.0
> 
> 
> -- 
> Mailing list info: https://lists.linux.it/listinfo/ltp

-- 
Cyril Hrubis
chrubis@suse.cz