hpfs: convert to new aops

{

	return block_write_full_page(page,hpfs_get_block, wbc);

}

static int hpfs_readpage(struct file *file, struct page *page)

{

	return block_read_full_page(page,hpfs_get_block);

}

static int hpfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)

static int hpfs_write_begin(struct file *file, struct address_space *mapping,

			loff_t pos, unsigned len, unsigned flags,

			struct page **pagep, void **fsdata)

{

	return cont_prepare_write(page,from,to,hpfs_get_block,

		&hpfs_i(page->mapping->host)->mmu_private);

	*pagep = NULL;

	return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,

				hpfs_get_block,

				&hpfs_i(mapping->host)->mmu_private);

}

static sector_t _hpfs_bmap(struct address_space *mapping, sector_t block)

{

	return generic_block_bmap(mapping,block,hpfs_get_block);

}

const struct address_space_operations hpfs_aops = {

	.readpage = hpfs_readpage,

	.writepage = hpfs_writepage,

	.sync_page = block_sync_page,

	.prepare_write = hpfs_prepare_write,

	.commit_write = generic_commit_write,

	.write_begin = hpfs_write_begin,

	.write_end = generic_write_end,

	.bmap = _hpfs_bmap

};