btrfs: Convert extent_range_redirty_for_io() to use folios

void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end)

{

	struct address_space *mapping = inode->i_mapping;

	unsigned long index = start >> PAGE_SHIFT;

	unsigned long end_index = end >> PAGE_SHIFT;

	struct page *page;

	struct folio *folio;

	while (index <= end_index) {

		page = find_get_page(inode->i_mapping, index);

		BUG_ON(!page); /* Pages should be in the extent_io_tree */

		__set_page_dirty_nobuffers(page);

		account_page_redirty(page);

		put_page(page);

		index++;

		folio = filemap_get_folio(mapping, index);

		filemap_dirty_folio(mapping, folio);

		folio_account_redirty(folio);

		index += folio_nr_pages(folio);

		folio_put(folio);

	}

}