dm bufio: use list_move

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

spatch with a semantic match was used to find this.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index cc06a1e..b9e006a 100644 (file)
--- 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]);
 }
 
 /*----------------------------------------------------------------