linux-kernel - [PATCH] mm/shmem.c: use helper transhuge_vma

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Date:   Sat, 11 Jun 2022 10:23:14 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <hughd@...gle.com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH] mm/shmem.c: use helper transhuge_vma_enabled()

Use helper transhuge_vma_enabled() to check whether transhuge is enable
on vma. Minor readability improvement.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/shmem.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index 133c67057d41..59cc2e980c95 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -480,8 +480,7 @@ bool shmem_is_huge(struct vm_area_struct *vma,
 		return false;
 	if (shmem_huge == SHMEM_HUGE_DENY)
 		return false;
-	if (vma && ((vma->vm_flags & VM_NOHUGEPAGE) ||
-	    test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags)))
+	if (vma && !transhuge_vma_enabled(vma, vma->vm_flags))
 		return false;
 	if (shmem_huge == SHMEM_HUGE_FORCE)
 		return true;
-- 
2.23.0