[PATCH RFC v2 12/20] x86: mm: define pudp_set_access_flags() when CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is enabled only.

[Yeoreum Yun]

pudp_set_access_flags() is not used when
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is disabled.

Therefore, define pudp_set_access_flags() only when
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is enabled.

Signed-off-by: Yeoreum Yun <yeoreum.yun@xxxxxxx>
---
 arch/x86/mm/pgtable.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index f32facdb3035..edad847a2ecd 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -411,6 +411,7 @@ int pmdp_set_access_flags(struct vm_area_struct *vma,
 	return changed;
 }
 
+#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
 int pudp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
 			  pud_t *pudp, pud_t entry, int dirty)
 {
@@ -430,6 +431,7 @@ int pudp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
 
 	return changed;
 }
+#endif /* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
 #endif
 
 bool ptep_test_and_clear_young(struct vm_area_struct *vma,

-- 
2.43.0