576 	struct bio *comp_bio;  in btrfs_submit_compressed_read()  local
650 	comp_bio = compressed_bio_alloc(bdev, cur_disk_byte, GFP_NOFS);  in btrfs_submit_compressed_read()
651 	if (!comp_bio)  in btrfs_submit_compressed_read()
653 	comp_bio->bi_private = cb;  in btrfs_submit_compressed_read()
654 	comp_bio->bi_end_io = end_compressed_bio_read;  in btrfs_submit_compressed_read()
662 		if (comp_bio->bi_iter.bi_size)  in btrfs_submit_compressed_read()
665 							comp_bio, 0);  in btrfs_submit_compressed_read()
670 		if (ret || bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0) <  in btrfs_submit_compressed_read()
672 			bio_get(comp_bio);  in btrfs_submit_compressed_read()
674 			ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,  in btrfs_submit_compressed_read()
688 							comp_bio, sums);  in btrfs_submit_compressed_read()
691 			sums += DIV_ROUND_UP(comp_bio->bi_iter.bi_size,  in btrfs_submit_compressed_read()
694 			ret = btrfs_map_bio(root, READ, comp_bio,  in btrfs_submit_compressed_read()
698 				bio_endio(comp_bio);  in btrfs_submit_compressed_read()
701 			bio_put(comp_bio);  in btrfs_submit_compressed_read()
703 			comp_bio = compressed_bio_alloc(bdev, cur_disk_byte,  in btrfs_submit_compressed_read()
705 			BUG_ON(!comp_bio);  in btrfs_submit_compressed_read()
706 			comp_bio->bi_private = cb;  in btrfs_submit_compressed_read()
707 			comp_bio->bi_end_io = end_compressed_bio_read;  in btrfs_submit_compressed_read()
709 			bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0);  in btrfs_submit_compressed_read()
713 	bio_get(comp_bio);  in btrfs_submit_compressed_read()
715 	ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,  in btrfs_submit_compressed_read()
720 		ret = btrfs_lookup_bio_sums(root, inode, comp_bio, sums);  in btrfs_submit_compressed_read()
724 	ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);  in btrfs_submit_compressed_read()
727 		bio_endio(comp_bio);  in btrfs_submit_compressed_read()
730 	bio_put(comp_bio);  in btrfs_submit_compressed_read()