[PATCH 2/4] mm: mremap: use flush_pmd_tlb_range() in move_normal_pmd()

[Kefeng Wang]

Archs may need to do special things when flushing thp tlb,
so use the more applicable flush_pud_tlb_range() instead of
flush_tlb_range().

Fixes: 2c91bd4a4e2e ("mm: speed up mremap by 20x on large regions")
Signed-off-by: Kefeng Wang <wangkefeng.wang at huawei.com>
---
 mm/mremap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mremap.c b/mm/mremap.c
index 11e06e4ab33b..1883205fa22b 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -284,7 +284,7 @@ static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,
 	VM_BUG_ON(!pmd_none(*new_pmd));
 
 	pmd_populate(mm, new_pmd, pmd_pgtable(pmd));
-	flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
+	flush_pmd_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
 	if (new_ptl != old_ptl)
 		spin_unlock(new_ptl);
 	spin_unlock(old_ptl);
-- 
2.41.0