From: Sarthak Sharma <sarthak.sharma@arm.com>
To: "Gregory Price (Meta)" <gourry@gourry.net>,
linux-kselftest@vger.kernel.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kernel-team@meta.com, akpm@linux-foundation.org,
david@kernel.org, ljs@kernel.org, liam@infradead.org,
vbabka@kernel.org, rppt@kernel.org, surenb@google.com,
mhocko@suse.com, shuah@kernel.org
Subject: Re: [PATCH v3 2/7] selftests/mm: check MADV_COLD and MADV_PAGEOUT range handling
Date: Wed, 28 Oct 2026 16:53:28 +0530 [thread overview]
Message-ID: <0aaf89da-41a3-444f-88ec-ff8a385f38f6@arm.com> (raw)
In-Reply-To: <20261019171206.3331374-3-gourry@gourry.net>
On 10/19/26 10:42 PM, Gregory Price (Meta) wrote:
> madvise(2) accepts a zero-length range, rejects an unaligned start, and
> reports an unmapped gap in the range with ENOMEM while still applying the
> advice to the mapped pages on either side.
>
> Check each of these for both hints. Around the gap, only MADV_PAGEOUT has
> an effect the test can observe, so only MADV_PAGEOUT is checked for
> paging out both neighbors, and only if MADV_PAGEOUT can swap at all.
> Both hints' ENOMEM is checked first, so it is covered without swap.
>
> Signed-off-by: Gregory Price (Meta) <gourry@gourry.net>
Looks good to me.
Reviewed-by: Sarthak Sharma <sarthak.sharma@arm.com>
next prev parent reply other threads:[~2026-10-28 11:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-19 17:11 [PATCH v3 0/7] selftests/mm: add MADV_COLD and MADV_PAGEOUT contract tests Gregory Price (Meta)
2026-10-19 17:12 ` [PATCH v3 1/7] " Gregory Price (Meta)
2026-10-28 11:22 ` Sarthak Sharma
2026-10-28 13:43 ` Gregory Price (Meta)
2026-10-19 17:12 ` [PATCH v3 2/7] selftests/mm: check MADV_COLD and MADV_PAGEOUT range handling Gregory Price (Meta)
2026-10-28 11:23 ` Sarthak Sharma [this message]
2026-10-19 17:12 ` [PATCH v3 3/7] selftests/mm: check that MADV_COLD and MADV_PAGEOUT reject hugetlb Gregory Price (Meta)
2026-10-19 17:12 ` [PATCH v3 4/7] selftests/mm: check that MADV_COLD and MADV_PAGEOUT preserve shared memory Gregory Price (Meta)
2026-10-28 11:24 ` Sarthak Sharma
2026-10-19 17:12 ` [PATCH v3 5/7] selftests/mm: check MADV_COLD and MADV_PAGEOUT on partly advised THPs Gregory Price (Meta)
2026-10-19 17:12 ` [PATCH v3 6/7] selftests/mm: check MADV_PAGEOUT file permissions Gregory Price (Meta)
2026-10-28 11:25 ` Sarthak Sharma
2026-10-19 17:12 ` [PATCH v3 7/7] selftests/mm: check that unauthorized MADV_PAGEOUT skips large file folios Gregory Price (Meta)
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