Subject: [PATCH v2 4/6] mm/mremap: Don't enable optimized PUD move if page table levels is 2

From: "Aneesh Kumar K.V" <[email-masked]>
Date: Wed, 16 Jun 2021 10:22:37 +0530

With two level page table don't enable move_normal_pud.

Signed-off-by: Aneesh Kumar K.V <[email-masked]>
---
 mm/mremap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mremap.c b/mm/mremap.c
index 958ecdc6f29d..97313e316a4d 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -276,7 +276,7 @@ static inline bool move_normal_pmd(struct vm_area_struct *vma,
 }
 #endif
 
-#ifdef CONFIG_HAVE_MOVE_PUD
+#if CONFIG_PGTABLE_LEVELS > 2 && defined(CONFIG_HAVE_MOVE_PUD)
 static bool move_normal_pud(struct vm_area_struct *vma, unsigned long old_addr,
 		  unsigned long new_addr, pud_t *old_pud, pud_t *new_pud)
 {
-- 
2.31.1