[PATCH] core: use list_move()

This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B).

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/pnode.c b/fs/pnode.c
index 37b568e..da42ee6 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -53,8 +53,7 @@
 	if (master) {
 		list_for_each_entry(slave_mnt, &mnt->mnt_slave_list, mnt_slave)
 			slave_mnt->mnt_master = master;
-		list_del(&mnt->mnt_slave);
-		list_add(&mnt->mnt_slave, &master->mnt_slave_list);
+		list_move(&mnt->mnt_slave, &master->mnt_slave_list);
 		list_splice(&mnt->mnt_slave_list, master->mnt_slave_list.prev);
 		INIT_LIST_HEAD(&mnt->mnt_slave_list);
 	} else {
@@ -283,10 +282,8 @@
 		 * umount the child only if the child has no
 		 * other children
 		 */
-		if (child && list_empty(&child->mnt_mounts)) {
-			list_del(&child->mnt_hash);
-			list_add_tail(&child->mnt_hash, &mnt->mnt_hash);
-		}
+		if (child && list_empty(&child->mnt_mounts))
+			list_move_tail(&child->mnt_hash, &mnt->mnt_hash);
 	}
 }