JFS: use list_move instead of list_del/list_add

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>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>

fs/jfs/jfs_txnmgr.c

@@ -2977,12 +2977,9 @@ int jfs_sync(void *arg)
 				 * put back on the anon_list.
 				 */
 
-				/* Take off anon_list */
-				list_del(&jfs_ip->anon_inode_list);
-
-				/* Put on anon_list2 */
-				list_add(&jfs_ip->anon_inode_list,
-					 &TxAnchor.anon_list2);
+				/* Move from anon_list to anon_list2 */
+				list_move(&jfs_ip->anon_inode_list,
+					  &TxAnchor.anon_list2);
 
 				TXN_UNLOCK();
 				iput(ip);