[PATCH] mm/rmap: Correct obsolete comment of page_get_anon_vma()

From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
	<linmiaohe@huawei.com>
Subject: [PATCH] mm/rmap: Correct obsolete comment of page_get_anon_vma()
Date: Wed, 3 Feb 2021 04:32:15 -0500	[thread overview]
Message-ID: <20210203093215.31990-1-linmiaohe@huawei.com> (raw)

Since commit 746b18d421da ("mm: use refcounts for page_lock_anon_vma()"),
page_lock_anon_vma() is renamed to page_get_anon_vma() and converted to
return a refcount increased anon_vma. But it forgot to change the relevant
comment.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 mm/rmap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index b49e85605f8f..b0fc27e77d6d 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -462,8 +462,8 @@ void __init anon_vma_init(void)
  * Getting a lock on a stable anon_vma from a page off the LRU is tricky!
  *
  * Since there is no serialization what so ever against page_remove_rmap()
- * the best this function can do is return a locked anon_vma that might
- * have been relevant to this page.
+ * the best this function can do is return a refcount increased anon_vma
+ * that might have been relevant to this page.
  *
  * The page might have been remapped to a different anon_vma or the anon_vma
  * returned may already be freed (and even reused).
-- 
2.19.1


