ntfs: clean up ntfs_attr_extend_initialized

cached_page and lru_pvec have not been used.  Let's remove the arguments.
Signed-off-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/ntfs/file.c

@@ -98,9 +98,6 @@ static int ntfs_file_open(struct inode *vi, struct file *filp)
  * the page at all.  For a more detailed explanation see ntfs_truncate() in
  * fs/ntfs/inode.c.
  *
- * @cached_page and @lru_pvec are just optimizations for dealing with multiple
- * pages.
- *
  * Return 0 on success and -errno on error.  In the case that an error is
  * encountered it is possible that the initialized size will already have been
  * incremented some way towards @new_init_size but it is guaranteed that if
@@ -110,8 +107,7 @@ static int ntfs_file_open(struct inode *vi, struct file *filp)
  * Locking: i_mutex on the vfs inode corrseponsind to the ntfs inode @ni must be
  *	    held by the caller.
  */
-static int ntfs_attr_extend_initialized(ntfs_inode *ni, const s64 new_init_size,
-		struct page **cached_page, struct pagevec *lru_pvec)
+static int ntfs_attr_extend_initialized(ntfs_inode *ni, const s64 new_init_size)
 {
 	s64 old_init_size;
 	loff_t old_i_size;
@@ -1925,8 +1921,7 @@ static ssize_t ntfs_file_buffered_write(struct kiocb *iocb,
 	ll = ni->initialized_size;
 	read_unlock_irqrestore(&ni->size_lock, flags);
 	if (pos > ll) {
-		err = ntfs_attr_extend_initialized(ni, pos, &cached_page,
-				&lru_pvec);
+		err = ntfs_attr_extend_initialized(ni, pos);
 		if (err < 0) {
 			ntfs_error(vol->sb, "Cannot perform write to inode "
 					"0x%lx, attribute type 0x%x, because "