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| author |  Baolin Wang <baolin.wang@linux.alibaba.com>
| 2022-05-27 10:01:35 +0800 |
|---|---|---|
| committer |  akpm <akpm@linux-foundation.org>
| 2022-07-03 18:08:39 -0700 |
| commit | 8edaec0756005a3f286c9272e909dff07d12cf75 (patch) | |
| tree | 97d53520d1c4bc9ee052f810b22d2d032b4a4b10 /mm/hugetlb.c | |
| parent | kasan: fix zeroing vmalloc memory with HW_TAGS (diff) | |
| download | linux-8edaec0756005a3f286c9272e909dff07d12cf75.tar.gz linux-8edaec0756005a3f286c9272e909dff07d12cf75.tar.bz2 linux-8edaec0756005a3f286c9272e909dff07d12cf75.zip | |
mm/hugetlb: remove unnecessary huge_ptep_set_access_flags() in hugetlb_mcopy_atomic_pte()
There is no need to update the hugetlb access flags after just setting the
hugetlb page table entry by set_huge_pte_at(), since the page table entry
value has no changes.
Thus remove the unnecessary huge_ptep_set_access_flags() in
hugetlb_mcopy_atomic_pte().
Link: https://lkml.kernel.org/r/f3e28b897b53a69967a8b98a6fdcda3be80c9229.1653616175.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index ed202d29ca46..70d2763f92ea 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6039,8 +6039,6 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, set_huge_pte_at(dst_mm, dst_addr, dst_pte, _dst_pte); - (void)huge_ptep_set_access_flags(dst_vma, dst_addr, dst_pte, _dst_pte, - dst_vma->vm_flags & VM_WRITE); hugetlb_count_add(pages_per_huge_page(h), dst_mm); /* No need to invalidate - it was non-present before */ |