From: sashiko-bot@kernel.org
To: "SJ Park" <sj@kernel.org>
Cc: damon@lists.linux.dev
Subject: Re: [PATCH 3/9] mm/damon/ops-common: align MMU notifier range when clearing PMD young bit
Date: Mon, 02 Nov 2026 15:29:24 +0000 [thread overview]
Message-ID: <sashiko-outbox-193665@kernel.org> (raw)
In-Reply-To: <20261102150757.93058-4-sj@kernel.org>
> From: Aveline Noir <jm5905938@gmail.com>
>
> damon_pmdp_mkold() clears the young bit of a PMD but notifies
> [addr, addr + HPAGE_PMD_SIZE), where addr can be an unaligned sampling
> address. This can miss part of the sampled huge page and age secondary
> mappings in the next one.
>
> Align addr to HPAGE_PMD_MASK so both operations cover the same huge page.
>
> Fixes: 3f49584b262c ("mm/damon: implement primitives for the virtual memory address spaces")
> Cc: Shubhang Kaushik (Ampere) <sh@gentwo.org>
> Signed-off-by: Aveline Noir <jm5905938@gmail.com>
> Reviewed-by: SJ Park <sj@kernel.org>
> Signed-off-by: SJ Park <sj@kernel.org>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261102150757.93058-1-sj@kernel.org?part=3
next prev parent reply other threads:[~2026-11-02 15:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 15:07 [PATCH 0/9] mm/damon: various fixes and cleanup of code, test, and docs SJ Park
2026-11-02 15:07 ` [PATCH 1/9] mm/damon/core: remove unnecessary zero-initialization in damon_new_ctx() SJ Park
2026-11-02 15:10 ` sashiko-bot
2026-11-02 15:07 ` [PATCH 2/9] mm/damon/ops-common: align MMU notifier range when clearing PTE young bit SJ Park
2026-11-02 15:22 ` sashiko-bot
2026-11-02 15:07 ` [PATCH 3/9] mm/damon/ops-common: align MMU notifier range when clearing PMD " SJ Park
2026-11-02 15:29 ` sashiko-bot [this message]
2026-11-02 15:07 ` [PATCH 4/9] mm/damon/stat: avoid 32-bit overflow in idle percentiles SJ Park
2026-11-02 15:31 ` sashiko-bot
2026-11-02 15:07 ` [PATCH 5/9] mm/damon/{p,v}addr: skip folios already on the migration target node SJ Park
2026-11-02 15:33 ` sashiko-bot
2026-11-03 14:09 ` SJ Park
2026-11-02 15:07 ` [PATCH 6/9] selftests/damon/sysfs.py: stop obsolete_target shells hanging the test SJ Park
2026-11-02 15:34 ` sashiko-bot
2026-11-02 15:07 ` [PATCH 7/9] mm/damon/reclaim: fix typo and grammar SJ Park
2026-11-02 15:35 ` sashiko-bot
2026-11-02 15:07 ` [PATCH 8/9] Docs/admin-guide/mm/damon/lru_sort: fix grammar and stlye SJ Park
2026-11-02 15:36 ` sashiko-bot
2026-11-03 2:37 ` Daniel Pereira
2026-11-02 15:07 ` [PATCH 9/9] Docs/admin-guide/mm/damon/reclaim: document how to disable watermarks SJ Park
2026-11-02 15:37 ` sashiko-bot
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