231 static void hib_init_batch(struct hib_bio_batch *hb)  in hib_init_batch()  argument
233 	atomic_set(&hb->count, 0);  in hib_init_batch()
234 	init_waitqueue_head(&hb->wait);  in hib_init_batch()
235 	hb->error = BLK_STS_OK;  in hib_init_batch()
240 	struct hib_bio_batch *hb = bio->bi_private;  in hib_end_io()  local
255 	if (bio->bi_status && !hb->error)  in hib_end_io()
256 		hb->error = bio->bi_status;  in hib_end_io()
257 	if (atomic_dec_and_test(&hb->count))  in hib_end_io()
258 		wake_up(&hb->wait);  in hib_end_io()
264 		struct hib_bio_batch *hb)  in hib_submit_io()  argument
282 	if (hb) {  in hib_submit_io()
284 		bio->bi_private = hb;  in hib_submit_io()
285 		atomic_inc(&hb->count);  in hib_submit_io()
295 static blk_status_t hib_wait_io(struct hib_bio_batch *hb)  in hib_wait_io()  argument
297 	wait_event(hb->wait, atomic_read(&hb->count) == 0);  in hib_wait_io()
298 	return blk_status_to_errno(hb->error);  in hib_wait_io()
368 static int write_page(void *buf, sector_t offset, struct hib_bio_batch *hb)  in write_page()  argument
376 	if (hb) {  in write_page()
382 			ret = hib_wait_io(hb); /* Free pages */  in write_page()
392 				hb = NULL;	/* Go synchronous */  in write_page()
399 	return hib_submit_io(REQ_OP_WRITE, REQ_SYNC, offset, src, hb);  in write_page()
441 		struct hib_bio_batch *hb)  in swap_write_page()  argument
449 	error = write_page(buf, offset, hb);  in swap_write_page()
458 		error = write_page(handle->cur, handle->cur_swap, hb);  in swap_write_page()
465 		if (hb && low_free_pages() <= handle->reqd_free_pages) {  in swap_write_page()
466 			error = hib_wait_io(hb);  in swap_write_page()
538 	struct hib_bio_batch hb;  in save_image()  local
542 	hib_init_batch(&hb);  in save_image()
555 		ret = swap_write_page(handle, data_of(*snapshot), &hb);  in save_image()
563 	err2 = hib_wait_io(&hb);  in save_image()
674 	struct hib_bio_batch hb;  in save_image_lzo()  local
683 	hib_init_batch(&hb);  in save_image_lzo()
838 				ret = swap_write_page(handle, page, &hb);  in save_image_lzo()
849 	err2 = hib_wait_io(&hb);  in save_image_lzo()
1008 		struct hib_bio_batch *hb)  in swap_read_page()  argument
1019 	error = hib_submit_io(REQ_OP_READ, 0, offset, buf, hb);  in swap_read_page()
1057 	struct hib_bio_batch hb;  in load_image()  local
1061 	hib_init_batch(&hb);  in load_image()
1074 		ret = swap_read_page(handle, data_of(*snapshot), &hb);  in load_image()
1078 			ret = hib_wait_io(&hb);  in load_image()
1086 	err2 = hib_wait_io(&hb);  in load_image()
1161 	struct hib_bio_batch hb;  in load_image_lzo()  local
1174 	hib_init_batch(&hb);  in load_image_lzo()
1293 			ret = swap_read_page(handle, page[ring], &hb);  in load_image_lzo()
1320 			ret = hib_wait_io(&hb);  in load_image_lzo()
1374 			ret = hib_wait_io(&hb);  in load_image_lzo()