[RFC PATCH 2/5] mm/huge_memory: use page_rmappable_folio() to convert after-split folios

[Zi Yan <ziy@nvidia.com>]

Current code uses folio_set_large_rmappable() on after-split folios, but
these folios should be treated as compound pages and converted to folios
with page_rmappable_folio().

This prepares for code separation of compound page and folio in a follow-up
commit.

Signed-off-by: Zi Yan <ziy@nvidia.com>
---
 mm/huge_memory.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 44ff8a648afd..74ba076e3fc0 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -3558,10 +3558,9 @@ static void __split_folio_to_order(struct folio *folio, int old_order,
 		 * which needs correct compound_head().
 		 */
 		clear_compound_head(new_head);
-		if (new_order) {
+		if (new_order)
 			prep_compound_page(new_head, new_order);
-			folio_set_large_rmappable(new_folio);
-		}
+		page_rmappable_folio(new_head);
 
 		if (folio_test_young(folio))
 			folio_set_young(new_folio);
-- 
2.51.0