From: Hao Li <hao.li@linux.dev>
To: Pengpeng Hou <pengpeng@iscas.ac.cn>
Cc: Vlastimil Babka <vbabka@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, Harry Yoo <harry@kernel.org>,
Christoph Lameter <cl@gentwo.org>,
David Rientjes <rientjes@google.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>, Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/4] mm/slub: use a track count for user metadata sizing
Date: Mon, 17 Aug 2026 18:04:40 +0800 [thread overview]
Message-ID: <aoLci4aJGKDNaNWd@fedora> (raw)
In-Reply-To: <20260813161059.73855-1-pengpeng@iscas.ac.cn>
On Fri, Aug 14, 2026 at 12:10:59AM +0800, Pengpeng Hou wrote:
> SLAB_STORE_USER metadata consists of allocation and free tracks, but the
> object-layout calculations repeat the literal count at each offset site.
>
> Add TRACK_NR to the existing track-item enum and use it for metadata
> initialization, original-size placement, object-extension offsets, padding
> checks and cache sizing. This is a behavior-preserving preparation for
> extending the tracked history.
>
> Assisted-by: Codex:gpt-5
> Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
> ---
> mm/slub.c | 16 ++++++++--------
> 1 file changed, 8 insertions(+), 8 deletions(-)
LGTM.
Reviewed-by: Hao Li <hao.li@linux.dev>
--
Thanks,
Hao
next prev parent reply other threads:[~2026-08-17 10:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-13 16:08 [PATCH v2 0/4] mm/slub: preserve previous object lifetime Pengpeng Hou
2026-08-13 16:10 ` [PATCH v2 1/4] mm/slub: use a track count for user metadata sizing Pengpeng Hou
2026-08-17 10:04 ` Hao Li [this message]
2026-08-13 16:12 ` [PATCH v2 2/4] mm/slub: preserve one previous object lifetime Pengpeng Hou
2026-08-17 10:30 ` Hao Li
2026-08-13 16:14 ` [PATCH v2 3/4] mm/slub: test previous lifetime tracking Pengpeng Hou
2026-08-13 16:17 ` [PATCH v2 4/4] Documentation/mm: describe SLUB " Pengpeng Hou
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