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From: Wei Yang <richard.weiyang@gmail.com>
To: akpm@linux-foundation.org, david@kernel.org,
	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,
	baohua@kernel.org, lance.yang@linux.dev, linmiaohe@huawei.com,
	nao.horiguchi@gmail.com
Cc: linux-mm@kvack.org, Wei Yang <richard.weiyang@gmail.com>
Subject: [RFC Patch  10/11] mm/huge_memory: convert folio split helpers to use folio_split_uniform()
Date: Mon,  8 Dec 2025 14:36:15 +0000	[thread overview]
Message-ID: <20251208143616.20797-11-richard.weiyang@gmail.com> (raw)
In-Reply-To: <20251208143616.20797-1-richard.weiyang@gmail.com>

The functions split_folio_to_order() and split_folio_to_list() both
perform a uniform split operation and return the first resulting page
locked.

This behavior is functionally identical to the recently introduced
folio-style helper, folio_split_uniform().

This commit converts the internal calls within these functions to use
folio_split_uniform(). This conversion standardizes the implementation
across the codebase, ensuring consistency and full adoption of the
modern folio splitting API.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
---
 include/linux/huge_mm.h | 2 +-
 mm/huge_memory.c        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index bc99ae7b0376..95a68c19e177 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -388,7 +388,7 @@ static inline int split_huge_page_to_list_to_order(struct page *page, struct lis
 
 static inline int split_folio_to_order(struct folio *folio, int new_order)
 {
-	return split_huge_page_to_list_to_order(&folio->page, NULL, new_order);
+	return folio_split_uniform(folio, new_order, NULL);
 }
 
 /**
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 09742c021eee..cedecfc1a40c 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -4274,7 +4274,7 @@ unsigned int min_order_for_split(struct folio *folio)
 
 int split_folio_to_list(struct folio *folio, struct list_head *list)
 {
-	return split_huge_page_to_list_to_order(&folio->page, list, 0);
+	return folio_split_uniform(folio, 0, list);
 }
 
 /*
-- 
2.34.1



  parent reply	other threads:[~2025-12-08 14:37 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-08 14:36 [RFC Patch 00/11] Convert huge page split API to folio-style Wei Yang
2025-12-08 14:36 ` [RFC Patch 01/11] mm/huge_memory: relocate fundamental folio split comment to __folio_split() Wei Yang
2025-12-08 14:36 ` [RFC Patch 02/11] mm/huge_memory: remove split_folio_to_list_to_order() helper Wei Yang
2025-12-08 14:36 ` [RFC Patch 03/11] mm/huge_memory: convert try_folio_split_to_order() to use split_folio_to_order() Wei Yang
2025-12-08 14:36 ` [RFC Patch 04/11] mm/memory-failure: convert try_to_split_thp_page() " Wei Yang
2025-12-08 14:36 ` [RFC Patch 05/11] mm/huge_memory: remove unused function split_huge_page_to_order() Wei Yang
2025-12-08 14:36 ` [RFC Patch 06/11] mm/huge_memory: introduce __split_folio_and_update_stats() to consolidate split task Wei Yang
2025-12-08 14:36 ` [RFC Patch 07/11] mm/huge_memory: separate uniform/non uniform split logic in __split_unmapped_folio() Wei Yang
2025-12-08 14:36 ` [RFC Patch 08/11] mm/huge_memory: restrict @split_at check to non-uniform splits Wei Yang
2025-12-08 14:36 ` [RFC Patch 09/11] mm/huge_memory: introduce folio_split_uniform() helper for uniform splitting Wei Yang
2025-12-08 14:36 ` Wei Yang [this message]
2025-12-08 14:36 ` [RFC Patch 11/11] mm/huge_memory: simplify split_huge_page() by calling __folio_split() directly Wei Yang

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