ext3: Fix writepage credits computation for ordered mode

Original computation forgets to count writes of indirect block themselves
(it only counts with blocks necessary for their allocation) in ordered mode.
Acked-by: NAmir Goldstein <amir73il@users.sf.net>
Signed-off-by: NYongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: NJan Kara <jack@suse.cz>

fs/ext3/inode.c

@@ -3294,7 +3294,7 @@ static int ext3_writepage_trans_blocks(struct inode *inode)
 	if (ext3_should_journal_data(inode))
 		ret = 3 * (bpp + indirects) + 2;
 	else
-		ret = 2 * (bpp + indirects) + 2;
+		ret = 2 * (bpp + indirects) + indirects + 2;
 
 #ifdef CONFIG_QUOTA
 	/* We know that structure was already allocated during dquot_initialize so