[PATCH v2 07/10] mm: memory: use a folio in do_set_pmd()

Kefeng Wang
2023-11-04T03:56:02Z

Use a folio in do_set_pmd(), which is a preparetion for
converting mm counter functions to take a folio.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
mm/memory.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 806568f9605b..ac247850919a 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4318,12 +4318,13 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page)
unsigned long haddr = vmf->address & HPAGE_PMD_MASK;
pmd_t entry;
vm_fault_t ret = VM_FAULT_FALLBACK;
+ struct folio *folio;

if (!transhuge_vma_suitable(vma, haddr))
return ret;

- page = compound_head(page);
- if (compound_order(page) != HPAGE_PMD_ORDER)
+ folio = page_folio(page);
+ if (folio_order(folio) != HPAGE_PMD_ORDER)
return ret;

/*
--
2.27.0