[PATCH v1 01/11] mm: provide vm_normal_(page|folio)_pmd() with CONFIG_PGTABLE_HAS_HUGE_LEAVES

David Hildenbrand
2024-08-02T15:55:46Z

We want to make use of vm_normal_page_pmd() in generic page table
walking code where we might walk hugetlb folios that are mapped by PMDs
even without CONFIG_TRANSPARENT_HUGEPAGE.

So let's expose vm_normal_page_pmd() + vm_normal_folio_pmd() with
CONFIG_PGTABLE_HAS_HUGE_LEAVES.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
mm/memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index 4c8716cb306c..29772beb3275 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -666,7 +666,7 @@ struct folio *vm_normal_folio(struct vm_area_struct *vma, unsigned long addr,
return NULL;
}

-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#ifdef CONFIG_PGTABLE_HAS_HUGE_LEAVES
struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr,
pmd_t pmd)
{
--
2.45.2