mm/khugepaged: use vma_is_anonymous

Clean up the vma->vm_ops usage.  Use vma_is_anonymous instead of
vma->vm_ops to make it more understandable.

Link: https://lkml.kernel.org/r/20220424071642.3234971-1-xu.xin16@zte.com.cn
Signed-off-by: xu xin <xu.xin16@zte.com.cn>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index a4e5eaf..ac53ad2 100644 (file)
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -466,7 +466,7 @@ static bool hugepage_vma_check(struct vm_area_struct *vma,
                        S_ISREG(inode->i_mode);
        }
 
-       if (!vma->anon_vma || vma->vm_ops)
+       if (!vma->anon_vma || !vma_is_anonymous(vma))
                return false;
        if (vma_is_temporary_stack(vma))
                return false;
@@ -972,7 +972,7 @@ static int hugepage_vma_revalidate(struct mm_struct *mm, unsigned long address,
        if (!hugepage_vma_check(vma, vma->vm_flags))
                return SCAN_VMA_CHECK;
        /* Anon VMA expected */
-       if (!vma->anon_vma || vma->vm_ops)
+       if (!vma->anon_vma || !vma_is_anonymous(vma))
                return SCAN_VMA_CHECK;
        return 0;
 }