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-   -   dm-bufio: use list_move instead of list_del/list_add (http://www.linux-archive.org/device-mapper-development/701039-dm-bufio-use-list_move-instead-list_del-list_add.html)

Wei Yongjun 09-06-2012 04:35 AM

dm-bufio: use list_move instead of list_del/list_add
 
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Using list_move() instead of list_del() + list_add().

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
drivers/md/dm-bufio.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index cc06a1e..b9e006a 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -441,8 +441,7 @@ static void __relink_lru(struct dm_buffer *b, int dirty)
c->n_buffers[b->list_mode]--;
c->n_buffers[dirty]++;
b->list_mode = dirty;
- list_del(&b->lru_list);
- list_add(&b->lru_list, &c->lru[dirty]);
+ list_move(&b->lru_list, &c->lru[dirty]);
}

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