1526 	struct ext4_io_submit io_submit;	/* IO submission data */  member
1865 	err = ext4_bio_write_folio(&mpd->io_submit, folio, len);  in mpage_submit_folio()
2011 	ext4_io_end_t *io_end = mpd->io_submit.io_end;  in mpage_process_folio()
2163 		if (!mpd->io_submit.io_end->handle &&  in mpage_map_one_extent()
2165 			mpd->io_submit.io_end->handle = handle->h_rsv_handle;  in mpage_map_one_extent()
2168 		ext4_set_io_unwritten_flag(inode, mpd->io_submit.io_end);  in mpage_map_one_extent()
2204 	ext4_io_end_t *io_end = mpd->io_submit.io_end;  in mpage_map_and_submit_extent()
2608 	ext4_io_submit_init(&mpd->io_submit, wbc);  in ext4_do_writepages()
2623 	mpd->io_submit.io_end = ext4_init_io_end(inode, GFP_KERNEL);  in ext4_do_writepages()
2624 	if (!mpd->io_submit.io_end) {  in ext4_do_writepages()
2632 	ext4_io_submit(&mpd->io_submit);  in ext4_do_writepages()
2633 	ext4_put_io_end_defer(mpd->io_submit.io_end);  in ext4_do_writepages()
2634 	mpd->io_submit.io_end = NULL;  in ext4_do_writepages()
2640 		mpd->io_submit.io_end = ext4_init_io_end(inode, GFP_KERNEL);  in ext4_do_writepages()
2641 		if (!mpd->io_submit.io_end) {  in ext4_do_writepages()
2666 			ext4_put_io_end(mpd->io_submit.io_end);  in ext4_do_writepages()
2667 			mpd->io_submit.io_end = NULL;  in ext4_do_writepages()
2695 		ext4_io_submit(&mpd->io_submit);  in ext4_do_writepages()
2705 			ext4_put_io_end_defer(mpd->io_submit.io_end);  in ext4_do_writepages()
2708 			ext4_put_io_end(mpd->io_submit.io_end);  in ext4_do_writepages()
2709 		mpd->io_submit.io_end = NULL;  in ext4_do_writepages()