[PATCH 1/3] ext4: tidy up a void argument in inode.c

[Eric Sandeen <sandeen@redhat.com>]

This doesn't fix anything at all, it just removes a vestige
of prior use from __mpage_da_writepage()

__mpage_da_writepage() had a *void argument leftover from
its previous life as a callback; make it reflect the actual type.

Fixing this up makes it slightly more obvious to read, and 
enables proper typechecking.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

Ted, I had a similar change for mpage_put_bnr_to_bhs
which takes an mpd but only wants an inode, but you
absorbed that function in your patch series, so I didn't
submit the change here.


diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 50f3bba..854917e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c

@@ -2424,9 +2423,9 @@ static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh)
  * The function finds extents of pages and scan them for all blocks.
  */
 static int __mpage_da_writepage(struct page *page,
-				struct writeback_control *wbc, void *data)
+				struct writeback_control *wbc,
+				struct mpage_da_data *mpd)
 {
-	struct mpage_da_data *mpd = data;
 	struct inode *inode = mpd->inode;
 	struct buffer_head *bh, *head;
 	sector_t logical;