Re: [PATCH v2 4/4] selftests/mm: add tests for HWPOISON hugetlbfs read

From: Mike Kravetz
Date: Thu Jul 06 2023 - 19:22:56 EST


On 06/23/23 16:40, Jiaqi Yan wrote:
> Add tests for the improvement made to read operation on HWPOISON
> hugetlb page with different read granularities. For each chunk size,
> three read scenarios are tested:
> 1. Simple regression test on read without HWPOISON.
> 2. Sequential read page by page should succeed until encounters the 1st
> raw HWPOISON subpage.
> 3. After skip raw HWPOISON subpage by lseek, read()s always succeed.
>
> Signed-off-by: Jiaqi Yan <jiaqiyan@xxxxxxxxxx>
> ---
> tools/testing/selftests/mm/.gitignore | 1 +
> tools/testing/selftests/mm/Makefile | 1 +
> .../selftests/mm/hugetlb-read-hwpoison.c | 322 ++++++++++++++++++
> 3 files changed, 324 insertions(+)
> create mode 100644 tools/testing/selftests/mm/hugetlb-read-hwpoison.c

Thank you for adding a selftest!

Acked-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>

--
Mike Kravetz