fat: use new setup() for ->dir_ops too

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 8d68690..c27704d 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1238,8 +1238,7 @@
 /*
  * Read the super block of an MS-DOS FS.
  */
-int fat_fill_super(struct super_block *sb, void *data, int silent,
-		   const struct inode_operations *fs_dir_inode_ops, int isvfat,
+int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
 		   void (*setup)(struct super_block *))
 {
 	struct inode *root_inode = NULL, *fat_inode = NULL;
@@ -1268,7 +1267,6 @@
 	sb->s_magic = MSDOS_SUPER_MAGIC;
 	sb->s_op = &fat_sops;
 	sb->s_export_op = &fat_export_ops;
-	sbi->dir_ops = fs_dir_inode_ops;
 	ratelimit_state_init(&sbi->ratelimit, DEFAULT_RATELIMIT_INTERVAL,
 			     DEFAULT_RATELIMIT_BURST);