[RFC Patch 03/11] mm/huge_memory: convert try_folio_split_to_order() to use split_folio_to_order()

[Wei Yang <richard.weiyang@gmail.com>]

The function try_folio_split_to_order() currently calls
split_huge_page_to_order() to split a large folio.

The behavior of split_huge_page_to_order() in this
context -- splitting a large folio and returning the first resulting
page locked -- is functionally identical to the folio-style helper
split_folio_to_order().

This commit converts the call to use the split_folio_to_order() helper
instead. This adopts the modern folio-style API, improving consistency
and reducing reliance on the older page-centric interface.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
---
 include/linux/huge_mm.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 977e513feed7..3e01184cf274 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -389,6 +389,11 @@ static inline int split_huge_page_to_order(struct page *page, unsigned int new_o
 	return split_huge_page_to_list_to_order(page, NULL, new_order);
 }
 
+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);
+}
+
 /**
  * try_folio_split_to_order() - try to split a @folio at @page to @new_order
  * using non uniform split.
@@ -407,7 +412,7 @@ static inline int try_folio_split_to_order(struct folio *folio,
 		struct page *page, unsigned int new_order)
 {
 	if (folio_check_splittable(folio, new_order, SPLIT_TYPE_NON_UNIFORM))
-		return split_huge_page_to_order(&folio->page, new_order);
+		return split_folio_to_order(folio, new_order);
 	return folio_split(folio, new_order, page, NULL);
 }
 static inline int split_huge_page(struct page *page)
@@ -771,11 +776,6 @@ static inline bool pmd_is_huge(pmd_t pmd)
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
-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);
-}
-
 /**
  * largest_zero_folio - Get the largest zero size folio available
  *
-- 
2.34.1