From: Barry Song <21cnbao@gmail.com>
To: Wei Yang <richard.weiyang@gmail.com>
Cc: akpm@linux-foundation.org, david@redhat.com,
lorenzo.stoakes@oracle.com, ziy@nvidia.com,
baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com,
npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com,
lance.yang@linux.dev, linux-mm@kvack.org
Subject: Re: [Patch v2 1/2] mm/huge_memory: cache folio attribute in __split_unmapped_folio()
Date: Thu, 16 Oct 2025 14:34:57 +1300 [thread overview]
Message-ID: <CAGsJ_4zFwEbn0Z17ZhM151ruDrSpdWJr_QHXB138aYaGO2eTdw@mail.gmail.com> (raw)
In-Reply-To: <20251016004613.514-2-richard.weiyang@gmail.com>
On Thu, Oct 16, 2025 at 2:24 PM Wei Yang <richard.weiyang@gmail.com> wrote:
>
> During the execution of __split_unmapped_folio(), the folio's anon/!anon
> attribute is invariant (not expected to change).
>
> Therefore, it is safe and more efficient to retrieve this attribute once
> at the start and reuse it throughout the function.
>
> Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
> Cc: Zi Yan <ziy@nvidia.com>
> Reviewed-by: Zi Yan <ziy@nvidia.com>
> Reviewed-by: wang lian <lianux.mm@gmail.com>
> ---
Reviewed-by: Barry Song <baohua@kernel.org>
next prev parent reply other threads:[~2025-10-16 1:35 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-16 0:46 [Patch v2 0/2] mm/huge_memory: cleanup __split_unmapped_folio() Wei Yang
2025-10-16 0:46 ` [Patch v2 1/2] mm/huge_memory: cache folio attribute in __split_unmapped_folio() Wei Yang
2025-10-16 1:34 ` Barry Song [this message]
2025-10-16 20:01 ` David Hildenbrand
2025-10-17 9:46 ` Lorenzo Stoakes
2025-10-19 7:51 ` Wei Yang
2025-10-16 0:46 ` [Patch v2 2/2] mm/huge_memory: Optimize and simplify __split_unmapped_folio() logic Wei Yang
2025-10-16 1:25 ` wang lian
2025-10-16 20:10 ` David Hildenbrand
2025-10-16 20:22 ` Zi Yan
2025-10-16 20:55 ` David Hildenbrand
2025-10-16 20:56 ` Zi Yan
2025-10-17 0:55 ` Wei Yang
2025-10-17 9:44 ` Lorenzo Stoakes
2025-10-17 14:26 ` Zi Yan
2025-10-17 14:29 ` Zi Yan
2025-10-17 14:44 ` Lorenzo Stoakes
2025-10-17 14:45 ` David Hildenbrand
2025-10-17 14:55 ` Lorenzo Stoakes
2025-10-17 17:24 ` Zi Yan
2025-10-20 14:03 ` Lorenzo Stoakes
2025-10-20 14:28 ` Zi Yan
2025-10-21 0:30 ` Wei Yang
2025-10-21 9:17 ` Lorenzo Stoakes
2025-10-19 8:00 ` Wei Yang
2025-10-20 11:55 ` Lorenzo Stoakes
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