From: Wei Yongjun <weiyj.lk@gmail.com>
To: akpm@linux-foundation.org
Cc: yongjun_wei@trendmicro.com.cn, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] mm: use list_move_tail instead of list_del/list_add_tail
Date: Wed, 5 Sep 2012 14:36:54 +0800 [thread overview]
Message-ID: <CAPgLHd-3Uwj1Uf31xqPO8LyYT0DS2Tcb1fa5KTYXdATEOHT9qw@mail.gmail.com> (raw)
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Using list_move_tail() instead of list_del() + list_add_tail().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
mm/rmap.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/mm/rmap.c b/mm/rmap.c
index 0f3b7cd..6333654 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -307,8 +307,7 @@ void anon_vma_moveto_tail(struct vm_area_struct *dst)
struct anon_vma *anon_vma = pavc->anon_vma;
VM_BUG_ON(pavc->vma != dst);
root = lock_anon_vma_root(root, anon_vma);
- list_del(&pavc->same_anon_vma);
- list_add_tail(&pavc->same_anon_vma, &anon_vma->head);
+ list_move_tail(&pavc->same_anon_vma, &anon_vma->head);
}
unlock_anon_vma_root(root);
}
--
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reply other threads:[~2012-09-05 6:36 UTC|newest]
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