[PATCH] fs: use list_move()

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

Cc: Ian Kent <raven@themaw.net>
Acked-by: Joel Becker <joel.becker@oracle.com>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Hans Reiser <reiserfs-dev@namesys.com>
Cc: Urban Widmark <urban@teststation.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Mark Fasheh <mark.fasheh@oracle.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/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index d852ebb..fdf7cf3 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -103,8 +103,7 @@
 static void
 lru_put_end(struct svc_cacherep *rp)
 {
-	list_del(&rp->c_lru);
-	list_add_tail(&rp->c_lru, &lru_head);
+	list_move_tail(&rp->c_lru, &lru_head);
 }
 
 /*