[PATCH v2 1/2] mm: hugetlb: use flush_hugetlb_tlb_range() in move_hugetlb_page_tables()

From: Kefeng Wang
Date: Mon Jul 31 2023 - 22:20:11 EST


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

Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Acked-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Fixes: 550a7d60bd5e ("mm, hugepages: add mremap() support for hugepage backed vma")
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
mm/hugetlb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 64a3239b6407..ac876bfba340 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5281,9 +5281,9 @@ int move_hugetlb_page_tables(struct vm_area_struct *vma,
}

if (shared_pmd)
- flush_tlb_range(vma, range.start, range.end);
+ flush_hugetlb_tlb_range(vma, range.start, range.end);
else
- flush_tlb_range(vma, old_end - len, old_end);
+ flush_hugetlb_tlb_range(vma, old_end - len, old_end);
mmu_notifier_invalidate_range_end(&range);
i_mmap_unlock_write(mapping);
hugetlb_vma_unlock_write(vma);
--
2.41.0