linux-kernel - [PATCH] mm: fix outdated comment in page_get_anon

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Date:   Thu, 17 Oct 2019 17:35:54 +0800
From:   Miles Chen <miles.chen@...iatek.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <wsd_upstream@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>
Subject: [PATCH] mm: fix outdated comment in page_get_anon_vma()

Replace DESTROY_BY_RCU with SLAB_TYPESAFE_BY_RCU because
SLAB_DESTROY_BY_RCU has been renamed to SLAB_TYPESAFE_BY_RCU by
commit 5f0d5a3ae7cf ("mm: Rename SLAB_DESTROY_BY_RCU to
SLAB_TYPESAFE_BY_RCU")

Signed-off-by: Miles Chen <miles.chen@...iatek.com>
---
 mm/rmap.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index d9a23bb773bf..bdb20f2bbe9f 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -457,9 +457,10 @@ void __init anon_vma_init(void)
  * chain and verify that the page in question is indeed mapped in it
  * [ something equivalent to page_mapped_in_vma() ].
  *
- * Since anon_vma's slab is DESTROY_BY_RCU and we know from page_remove_rmap()
- * that the anon_vma pointer from page->mapping is valid if there is a
- * mapcount, we can dereference the anon_vma after observing those.
+ * Since anon_vma's slab is SLAB_TYPESAFE_BY_RCU and we know from
+ * page_remove_rmap() that the anon_vma pointer from page->mapping is valid
+ * if there is a mapcount, we can dereference the anon_vma after observing
+ * those.
  */
 struct anon_vma *page_get_anon_vma(struct page *page)
 {
-- 
2.18.0