223 static void hib_init_batch(struct hib_bio_batch *hb)  in hib_init_batch()  argument
225 	atomic_set(&hb->count, 0);  in hib_init_batch()
226 	init_waitqueue_head(&hb->wait);  in hib_init_batch()
227 	hb->error = 0;  in hib_init_batch()
232 	struct hib_bio_batch *hb = bio->bi_private;  in hib_end_io()  local
245 	if (bio->bi_error && !hb->error)  in hib_end_io()
246 		hb->error = bio->bi_error;  in hib_end_io()
247 	if (atomic_dec_and_test(&hb->count))  in hib_end_io()
248 		wake_up(&hb->wait);  in hib_end_io()
254 		struct hib_bio_batch *hb)  in hib_submit_io()  argument
271 	if (hb) {  in hib_submit_io()
273 		bio->bi_private = hb;  in hib_submit_io()
274 		atomic_inc(&hb->count);  in hib_submit_io()
284 static int hib_wait_io(struct hib_bio_batch *hb)  in hib_wait_io()  argument
286 	wait_event(hb->wait, atomic_read(&hb->count) == 0);  in hib_wait_io()
287 	return hb->error;  in hib_wait_io()
350 static int write_page(void *buf, sector_t offset, struct hib_bio_batch *hb)  in write_page()  argument
358 	if (hb) {  in write_page()
364 			ret = hib_wait_io(hb); /* Free pages */  in write_page()
374 				hb = NULL;	/* Go synchronous */  in write_page()
381 	return hib_submit_io(WRITE_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()
521 	struct hib_bio_batch hb;  in save_image()  local
525 	hib_init_batch(&hb);  in save_image()
538 		ret = swap_write_page(handle, data_of(*snapshot), &hb);  in save_image()
546 	err2 = hib_wait_io(&hb);  in save_image()
657 	struct hib_bio_batch hb;  in save_image_lzo()  local
666 	hib_init_batch(&hb);  in save_image_lzo()
826 				ret = swap_write_page(handle, page, &hb);  in save_image_lzo()
837 	err2 = hib_wait_io(&hb);  in save_image_lzo()
997 		struct hib_bio_batch *hb)  in swap_read_page()  argument
1008 	error = hib_submit_io(READ_SYNC, offset, buf, hb);  in swap_read_page()
1046 	struct hib_bio_batch hb;  in load_image()  local
1050 	hib_init_batch(&hb);  in load_image()
1063 		ret = swap_read_page(handle, data_of(*snapshot), &hb);  in load_image()
1067 			ret = hib_wait_io(&hb);  in load_image()
1075 	err2 = hib_wait_io(&hb);  in load_image()
1146 	struct hib_bio_batch hb;  in load_image_lzo()  local
1159 	hib_init_batch(&hb);  in load_image_lzo()
1279 			ret = swap_read_page(handle, page[ring], &hb);  in load_image_lzo()
1306 			ret = hib_wait_io(&hb);  in load_image_lzo()
1361 			ret = hib_wait_io(&hb);  in load_image_lzo()