+ mm-khugepaged-use-vma_is_anonymous.patch added to -mm tree

+ mm-khugepaged-use-vma_is_anonymous.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: mm/khugepaged: use vma_is_anonymous
has been added to the -mm tree.  Its filename is
     mm-khugepaged-use-vma_is_anonymous.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-khugepaged-use-vma_is_anonymous.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-khugepaged-use-vma_is_anonymous.patch

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------------------------------------------------------
From: xu xin <xu.xin16@zte.com.cn>
Subject: 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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/khugepaged.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/khugepaged.c~mm-khugepaged-use-vma_is_anonymous
+++ a/mm/khugepaged.c
@@ -466,7 +466,7 @@ static bool hugepage_vma_check(struct vm
 	if (file_thp_enabled(vma))
 		return true;
 
-	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;
@@ -982,7 +982,7 @@ static int hugepage_vma_revalidate(struc
 	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;
 }
_

Patches currently in -mm which might be from xu.xin16@zte.com.cn are

mm-khugepaged-use-vma_is_anonymous.patch
ksm-count-ksm-merging-pages-for-each-process.patch
kernel-make-taskstats-available-from-all-net-namespaces.patch