linux-kernel - [PATCH V2 4/4] mm/vma: Replace all remaining open encodings with vma_is

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Message-Id: <1582520593-30704-5-git-send-email-anshuman.khandual@arm.com>
Date:   Mon, 24 Feb 2020 10:33:13 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc:     Anshuman Khandual <anshuman.khandual@....com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH V2 4/4] mm/vma: Replace all remaining open encodings with vma_is_anonymous()

This replaces all remaining open encodings with vma_is_anonymous().

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
---
 mm/gup.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/gup.c b/mm/gup.c
index c8ffe2e61f03..58c8cbfeded6 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -146,7 +146,8 @@ static struct page *no_page_table(struct vm_area_struct *vma,
 	 * But we can only make this optimization where a hole would surely
 	 * be zero-filled if handle_mm_fault() actually did handle it.
 	 */
-	if ((flags & FOLL_DUMP) && (!vma->vm_ops || !vma->vm_ops->fault))
+	if ((flags & FOLL_DUMP) &&
+			(vma_is_anonymous(vma) || !vma->vm_ops->fault))
 		return ERR_PTR(-EFAULT);
 	return NULL;
 }
-- 
2.20.1