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From: David Hildenbrand <david@redhat.com>
To: Zi Yan <ziy@nvidia.com>, linmiaohe@huawei.com, jane.chu@oracle.com
Cc: kernel@pankajraghav.com, akpm@linux-foundation.org,
	mcgrof@kernel.org, nao.horiguchi@gmail.com,
	Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	Nico Pache <npache@redhat.com>,
	Ryan Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>,
	Barry Song <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>,
	"Matthew Wilcox (Oracle)" <willy@infradead.org>,
	Wei Yang <richard.weiyang@gmail.com>,
	Yang Shi <shy828301@gmail.com>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org
Subject: Re: [PATCH v3 2/4] mm/huge_memory: add split_huge_page_to_order()
Date: Wed, 22 Oct 2025 22:13:06 +0200	[thread overview]
Message-ID: <b63f9223-4c5c-4e2c-9986-02052a3d7f78@redhat.com> (raw)
In-Reply-To: <20251022033531.389351-3-ziy@nvidia.com>

On 22.10.25 05:35, Zi Yan wrote:
> When caller does not supply a list to split_huge_page_to_list_to_order(),
> use split_huge_page_to_order() instead.
> 
> Signed-off-by: Zi Yan <ziy@nvidia.com>
> ---
>   include/linux/huge_mm.h | 12 ++++++++++--
>   1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
> index 7698b3542c4f..34f8d8453bf3 100644
> --- a/include/linux/huge_mm.h
> +++ b/include/linux/huge_mm.h
> @@ -381,6 +381,10 @@ static inline int split_huge_page_to_list_to_order(struct page *page, struct lis
>   {
>   	return __split_huge_page_to_list_to_order(page, list, new_order, false);
>   }
> +static inline int split_huge_page_to_order(struct page *page, unsigned int new_order)
> +{
> +	return split_huge_page_to_list_to_order(page, NULL, new_order);
> +}
>   
>   /*
>    * try_folio_split_to_order - try to split a @folio at @page to @new_order using
> @@ -400,8 +404,7 @@ static inline int try_folio_split_to_order(struct folio *folio,
>   		struct page *page, unsigned int new_order)
>   {
>   	if (!non_uniform_split_supported(folio, new_order, /* warns= */ false))
> -		return split_huge_page_to_list_to_order(&folio->page, NULL,
> -				new_order);
> +		return split_huge_page_to_order(&folio->page, new_order);
>   	return folio_split(folio, new_order, page, NULL);

Much more readable

Acked-by: David Hildenbrand <david@redhat.com>

-- 
Cheers

David / dhildenb



  reply	other threads:[~2025-10-22 20:13 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-22  3:35 [PATCH v3 0/4] Optimize folio split in memory failure Zi Yan
2025-10-22  3:35 ` [PATCH v3 1/4] mm/huge_memory: preserve PG_has_hwpoisoned if a folio is split to >0 order Zi Yan
2025-10-22 20:09   ` David Hildenbrand
2025-10-22 20:27     ` Zi Yan
2025-10-22 20:34       ` David Hildenbrand
2025-10-22 20:40         ` Zi Yan
2025-10-24 15:58   ` Lorenzo Stoakes
2025-10-25 15:21     ` Zi Yan
2025-10-22  3:35 ` [PATCH v3 2/4] mm/huge_memory: add split_huge_page_to_order() Zi Yan
2025-10-22 20:13   ` David Hildenbrand [this message]
2025-10-24 16:11   ` Lorenzo Stoakes
2025-10-22  3:35 ` [PATCH v3 3/4] mm/memory-failure: improve large block size folio handling Zi Yan
2025-10-22 20:17   ` David Hildenbrand
2025-10-22 20:29     ` Zi Yan
2025-10-24 18:11   ` Lorenzo Stoakes
2025-10-22  3:35 ` [PATCH v3 4/4] mm/huge_memory: fix kernel-doc comments for folio_split() and related Zi Yan
2025-10-22 20:18   ` David Hildenbrand
2025-10-22 20:47 ` [PATCH v3 0/4] Optimize folio split in memory failure Zi Yan
2025-10-22 20:47   ` Zi Yan

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