linux-kernel - Re: [PATCH 2/2] selftests: mm: add shmem collpase as a default test item

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Message-ID: <06ebdea8-3bb4-48fd-b17a-1e944f85a6c5@arm.com>
Date: Thu, 12 Jun 2025 10:44:34 +0530
From: Dev Jain <dev.jain@....com>
To: Baolin Wang <baolin.wang@...ux.alibaba.com>, akpm@...ux-foundation.org,
 david@...hat.com
Cc: lorenzo.stoakes@...cle.com, Liam.Howlett@...cle.com, npache@...hat.com,
 ryan.roberts@....com, baohua@...nel.org, shuah@...nel.org, ziy@...dia.com,
 linux-mm@...ck.org, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] selftests: mm: add shmem collpase as a default test
 item


On 12/06/25 9:24 am, Baolin Wang wrote:
> Currently, we only test anonymous memory collapse by default. We should also
> add shmem collapse as a default test item to catch issues that could break
> the test cases.
>
> Signed-off-by: Baolin Wang <baolin.wang@...ux.alibaba.com>
> ---
>   tools/testing/selftests/mm/run_vmtests.sh | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
> index 33fc7fafa8f9..a38c984103ce 100755
> --- a/tools/testing/selftests/mm/run_vmtests.sh
> +++ b/tools/testing/selftests/mm/run_vmtests.sh
> @@ -485,6 +485,10 @@ CATEGORY="thp" run_test ./khugepaged
>   
>   CATEGORY="thp" run_test ./khugepaged -s 2
>   
> +CATEGORY="thp" run_test ./khugepaged all:shmem
> +
> +CATEGORY="thp" run_test ./khugepaged -s 4 all:shmem
> +
>   CATEGORY="thp" run_test ./transhuge-stress -d 20
>   
>   # Try to create XFS if not provided

Reviewed-by: Dev Jain <dev.jain@....com>
Tested-by: Dev Jain <dev.jain@....com>