Re: [RFC PATCH 10/11] selftests/mm: remove READ_ONLY_THP_FOR_FS test in khugepaged

[Zi Yan]

On 24 Mar 2026, at 5:04, David Hildenbrand (Arm) wrote:

> On 3/23/26 22:07, Matthew Wilcox wrote:
>> On Mon, Mar 23, 2026 at 03:06:43PM -0400, Zi Yan wrote:
>>> READ_ONLY_THP_FOR_FS is no longer present, remove related test.
>>
>> Um, surely we want to keep the test?  It's no longer conditional on
>> READ_ONLY_THP_FOR_FS being enabled, but we still want to collapse
>> mapped files.
>
> Right, in particular this patch would also remove MADV_COLLAPSE support
> (not just khugepaged support).

I will keep these selftests in the new version, since the new one aims to enable
READ_ONLY_THP_FOR_FS by default for all FSes supporting large folio.

Best Regards,
Yan, Zi