375 static void o2hb_bio_end_io(struct bio *bio,  in o2hb_bio_end_io()  argument
378 	struct o2hb_bio_wait_ctxt *wc = bio->bi_private;  in o2hb_bio_end_io()
386 	bio_put(bio);  in o2hb_bio_end_io()
391 static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg,  in o2hb_setup_one_bio()
401 	struct bio *bio;  in o2hb_setup_one_bio()  local
408 	bio = bio_alloc(GFP_ATOMIC, 16);  in o2hb_setup_one_bio()
409 	if (!bio) {  in o2hb_setup_one_bio()
411 		bio = ERR_PTR(-ENOMEM);  in o2hb_setup_one_bio()
416 	bio->bi_iter.bi_sector = (reg->hr_start_block + cs) << (bits - 9);  in o2hb_setup_one_bio()
417 	bio->bi_bdev = reg->hr_bdev;  in o2hb_setup_one_bio()
418 	bio->bi_private = wc;  in o2hb_setup_one_bio()
419 	bio->bi_end_io = o2hb_bio_end_io;  in o2hb_setup_one_bio()
432 		len = bio_add_page(bio, page, vec_len, vec_start);  in o2hb_setup_one_bio()
441 	return bio;  in o2hb_setup_one_bio()
450 	struct bio *bio;  in o2hb_read_slots()  local
455 		bio = o2hb_setup_one_bio(reg, &wc, &current_slot, max_slots);  in o2hb_read_slots()
456 		if (IS_ERR(bio)) {  in o2hb_read_slots()
457 			status = PTR_ERR(bio);  in o2hb_read_slots()
463 		submit_bio(READ, bio);  in o2hb_read_slots()
481 	struct bio *bio;  in o2hb_issue_node_write()  local
487 	bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1);  in o2hb_issue_node_write()
488 	if (IS_ERR(bio)) {  in o2hb_issue_node_write()
489 		status = PTR_ERR(bio);  in o2hb_issue_node_write()
495 	submit_bio(WRITE_SYNC, bio);  in o2hb_issue_node_write()