Re: [LTP] [PATCH] vma01: check kernel version

Re: [LTP] [PATCH] vma01: check kernel version

[chrubis]

Hi!
> This is just a kernel behaviour change to avoid the possible
> scalability issue, not a real kernel bug. So, check the kernel
> version.
> 
> Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
> ---
>  testcases/kernel/mem/vma/vma01.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/testcases/kernel/mem/vma/vma01.c b/testcases/kernel/mem/vma/vma01.c
> index 7cd22c0..c6cb1f5 100644
> --- a/testcases/kernel/mem/vma/vma01.c
> +++ b/testcases/kernel/mem/vma/vma01.c
> @@ -192,7 +192,13 @@ static void check_status(int status)
>  		tst_resm(TPASS, "two 3*ps VMAs found.");
>  		break;
>  	case 1:
> -		tst_resm(TFAIL, "A single 6*ps VMA found.");
> +		if (tst_kvercmp(3, 0, 0) < 0) {
> +			tst_resm(TCONF, "A single 6*ps VMA found. You may need"
> +					" to back port kernel commit 965f55d "
> +					"to fix this scalability issue.");
> +		} else {
> +			tst_resm(TFAIL, "A single 6*ps VMA found.");
> +		}
>  		break;
>  	default:
>  		tst_brkm(TBROK, cleanup, "unexpected VMA found.");

This one looks fine.

-- 
Cyril Hrubis
chrubis@suse.cz

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