219 static void o2hb_bio_end_io(struct bio *bio,  in o2hb_bio_end_io()  argument
222 	struct o2hb_bio_wait_ctxt *wc = bio->bi_private;  in o2hb_bio_end_io()
230 	bio_put(bio);  in o2hb_bio_end_io()
235 static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg,  in o2hb_setup_one_bio()
245 	struct bio *bio;  in o2hb_setup_one_bio()  local
252 	bio = bio_alloc(GFP_ATOMIC, 16);  in o2hb_setup_one_bio()
253 	if (!bio) {  in o2hb_setup_one_bio()
255 		bio = ERR_PTR(-ENOMEM);  in o2hb_setup_one_bio()
260 	bio->bi_sector = (reg->hr_start_block + cs) << (bits - 9);  in o2hb_setup_one_bio()
261 	bio->bi_bdev = reg->hr_bdev;  in o2hb_setup_one_bio()
262 	bio->bi_private = wc;  in o2hb_setup_one_bio()
263 	bio->bi_end_io = o2hb_bio_end_io;  in o2hb_setup_one_bio()
276 		len = bio_add_page(bio, page, vec_len, vec_start);  in o2hb_setup_one_bio()
285 	return bio;  in o2hb_setup_one_bio()
294 	struct bio *bio;  in o2hb_read_slots()  local
299 		bio = o2hb_setup_one_bio(reg, &wc, &current_slot, max_slots);  in o2hb_read_slots()
300 		if (IS_ERR(bio)) {  in o2hb_read_slots()
301 			status = PTR_ERR(bio);  in o2hb_read_slots()
307 		submit_bio(READ, bio);  in o2hb_read_slots()
325 	struct bio *bio;  in o2hb_issue_node_write()  local
331 	bio = o2hb_setup_one_bio(reg, write_wc, &slot, slot+1);  in o2hb_issue_node_write()
332 	if (IS_ERR(bio)) {  in o2hb_issue_node_write()
333 		status = PTR_ERR(bio);  in o2hb_issue_node_write()
339 	submit_bio(WRITE, bio);  in o2hb_issue_node_write()