226 static void hib_init_batch(struct hib_bio_batch *hb)  in hib_init_batch()  argument
228 	atomic_set(&hb->count, 0);  in hib_init_batch()
229 	init_waitqueue_head(&hb->wait);  in hib_init_batch()
230 	hb->error = BLK_STS_OK;  in hib_init_batch()
231 	blk_start_plug(&hb->plug);  in hib_init_batch()
234 static void hib_finish_batch(struct hib_bio_batch *hb)  in hib_finish_batch()  argument
236 	blk_finish_plug(&hb->plug);  in hib_finish_batch()
241 	struct hib_bio_batch *hb = bio->bi_private;  in hib_end_io()  local
256 	if (bio->bi_status && !hb->error)  in hib_end_io()
257 		hb->error = bio->bi_status;  in hib_end_io()
258 	if (atomic_dec_and_test(&hb->count))  in hib_end_io()
259 		wake_up(&hb->wait);  in hib_end_io()
271 			 struct hib_bio_batch *hb)  in hib_submit_io_async()  argument
280 	bio->bi_private = hb;  in hib_submit_io_async()
281 	atomic_inc(&hb->count);  in hib_submit_io_async()
286 static int hib_wait_io(struct hib_bio_batch *hb)  in hib_wait_io()  argument
292 	wait_event(hb->wait, atomic_read(&hb->count) == 0);  in hib_wait_io()
293 	return blk_status_to_errno(hb->error);  in hib_wait_io()
357 static int write_page(void *buf, sector_t offset, struct hib_bio_batch *hb)  in write_page()  argument
366 	if (!hb)  in write_page()
371 		ret = hib_wait_io(hb); /* Free pages */  in write_page()
380 	return hib_submit_io_async(REQ_OP_WRITE | REQ_SYNC, offset, src, hb);  in write_page()
424 		struct hib_bio_batch *hb)  in swap_write_page()  argument
432 	error = write_page(buf, offset, hb);  in swap_write_page()
441 		error = write_page(handle->cur, handle->cur_swap, hb);  in swap_write_page()
448 		if (hb && low_free_pages() <= handle->reqd_free_pages) {  in swap_write_page()
449 			error = hib_wait_io(hb);  in swap_write_page()
523 	struct hib_bio_batch hb;  in save_image()  local
527 	hib_init_batch(&hb);  in save_image()
540 		ret = swap_write_page(handle, data_of(*snapshot), &hb);  in save_image()
548 	err2 = hib_wait_io(&hb);  in save_image()
549 	hib_finish_batch(&hb);  in save_image()
697 	struct hib_bio_batch hb;  in save_compressed_image()  local
706 	hib_init_batch(&hb);  in save_compressed_image()
874 				ret = swap_write_page(handle, page, &hb);  in save_compressed_image()
885 	err2 = hib_wait_io(&hb);  in save_compressed_image()
899 	hib_finish_batch(&hb);  in save_compressed_image()
1048 		struct hib_bio_batch *hb)  in swap_read_page()  argument
1059 	if (hb)  in swap_read_page()
1060 		error = hib_submit_io_async(REQ_OP_READ, offset, buf, hb);  in swap_read_page()
1094 	struct hib_bio_batch hb;  in load_image()  local
1098 	hib_init_batch(&hb);  in load_image()
1111 		ret = swap_read_page(handle, data_of(*snapshot), &hb);  in load_image()
1115 			ret = hib_wait_io(&hb);  in load_image()
1123 	err2 = hib_wait_io(&hb);  in load_image()
1124 	hib_finish_batch(&hb);  in load_image()
1197 	struct hib_bio_batch hb;  in load_compressed_image()  local
1210 	hib_init_batch(&hb);  in load_compressed_image()
1340 			ret = swap_read_page(handle, page[ring], &hb);  in load_compressed_image()
1367 			ret = hib_wait_io(&hb);  in load_compressed_image()
1421 			ret = hib_wait_io(&hb);  in load_compressed_image()
1497 	hib_finish_batch(&hb);  in load_compressed_image()