1517 	pgoff_t first_page;	/* The first page to write */  member
1542 	if (mpd->first_page >= mpd->next_page)  in mpage_release_unused_pages()
1546 	index = mpd->first_page;  in mpage_release_unused_pages()
1570 			if (folio->index < mpd->first_page)  in mpage_release_unused_pages()
1835 	mpd->first_page += folio_nr_pages(folio);  in mpage_folio_done()
1845 	BUG_ON(folio->index != mpd->first_page);  in mpage_submit_folio()
2260 	disksize = ((loff_t)mpd->first_page) << PAGE_SHIFT;  in mpage_map_and_submit_extent()
2363 	pgoff_t index = mpd->first_page;  in mpage_prepare_extent_to_map()
2456 				mpd->first_page = folio->index;  in mpage_prepare_extent_to_map()
2601 		mpd->first_page = writeback_index;  in ext4_do_writepages()
2604 		mpd->first_page = wbc->range_start >> PAGE_SHIFT;  in ext4_do_writepages()
2611 		tag_pages_for_writeback(mapping, mpd->first_page,  in ext4_do_writepages()
2672 		trace_ext4_da_write_pages(inode, mpd->first_page, wbc);  in ext4_do_writepages()
2730 		mpd->first_page = 0;  in ext4_do_writepages()
2740 		mapping->writeback_index = mpd->first_page;  in ext4_do_writepages()