When code reaches here, the page must be !PageAnon. There's no need to check PageAnon again. Remove it. Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index f671b2dce1fe..d98f89cee3e9 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -753,7 +753,7 @@ static void restore_exclusive_pte(struct vm_area_struct *vma, * Currently device exclusive access only supports anonymous * memory so the entry shouldn't point to a filebacked page. */ - WARN_ON_ONCE(!PageAnon(page)); + WARN_ON_ONCE(1); set_pte_at(vma->vm_mm, address, ptep, pte); -- 2.23.0
