[PATCH] JFS: use list_move instead of list_del/list_add

From: Wei Yongjun
Date: Thu Sep 06 2012 - 03:33:21 EST


From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxx>
---
fs/jfs/jfs_txnmgr.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index bb8b661..5fcc02e 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/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);

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