[PATCH v3 05/10] mm: use pfn_swap_entry_folio() in __split_huge_pmd_locked()

Matthew Wilcox (Oracle)
2024-01-11T15:25:01Z

From: Kefeng Wang <wangkefeng.wang@huawei.com>

Call pfn_swap_entry_folio() in __split_huge_pmd_locked() as preparation
for converting mm counter functions to take a folio.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
mm/huge_memory.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 5b2da360ae0c..4ad1416b60e3 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2432,7 +2432,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
swp_entry_t entry;

entry = pmd_to_swp_entry(old_pmd);
- page = pfn_swap_entry_to_page(entry);
+ folio = pfn_swap_entry_folio(entry);
} else {
page = pmd_page(old_pmd);
folio = page_folio(page);
@@ -2443,7 +2443,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
folio_remove_rmap_pmd(folio, page, vma);
folio_put(folio);
}
- add_mm_counter(mm, mm_counter_file(page), -HPAGE_PMD_NR);
+ add_mm_counter(mm, mm_counter_file(&folio->page), -HPAGE_PMD_NR);
return;
}

--
2.43.0