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

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Message-ID: <96fb6664-9bec-43ac-8327-e3f5fd7c9ae6@linux.alibaba.com>
Date: Thu, 12 Jun 2025 13:33:04 +0800
From: Baolin Wang <baolin.wang@...ux.alibaba.com>
To: "Bird, Tim" <Tim.Bird@...y.com>,
 "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
 "david@...hat.com" <david@...hat.com>
Cc: "lorenzo.stoakes@...cle.com" <lorenzo.stoakes@...cle.com>,
 "Liam.Howlett@...cle.com" <Liam.Howlett@...cle.com>,
 "npache@...hat.com" <npache@...hat.com>,
 "ryan.roberts@....com" <ryan.roberts@....com>,
 "dev.jain@....com" <dev.jain@....com>, "baohua@...nel.org"
 <baohua@...nel.org>, "shuah@...nel.org" <shuah@...nel.org>,
 "ziy@...dia.com" <ziy@...dia.com>, "linux-mm@...ck.org"
 <linux-mm@...ck.org>,
 "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] selftests: mm: add shmem collpase as a default test
 item



On 2025/6/12 12:20, Bird, Tim wrote:
> collpase in the subject line should be collapse

Good catch. Will fix the typo. Thanks.

>> -----Original Message-----
>> From: Baolin Wang <baolin.wang@...ux.alibaba.com>
>> Subject: [PATCH 2/2] selftests: mm: add shmem collpase as a default test item
>>
>> 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@ linux. alibaba. com> --- tools/testing/selftests/mm/run_vmtests. sh
>>
>> 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
>> --
>> 2.43.5
>>