mm: remove unneeded PageAnon check in restore_exclusive_pte()
When code reaches here, the page must be !PageAnon. There's no need to check PageAnon again. Remove it. Link: https://lkml.kernel.org/r/20220716081816.10752-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -744,7 +744,7 @@ static void restore_exclusive_pte(struct vm_area_struct *vma,
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* Currently device exclusive access only supports anonymous
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* memory so the entry shouldn't point to a filebacked page.
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*/
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WARN_ON_ONCE(!PageAnon(page));
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WARN_ON_ONCE(1);
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set_pte_at(vma->vm_mm, address, ptep, pte);
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