566 	struct bio *comp_bio;  in btrfs_submit_compressed_read()  local
630 	comp_bio = compressed_bio_alloc(bdev, cur_disk_byte, GFP_NOFS);  in btrfs_submit_compressed_read()
631 	if (!comp_bio)  in btrfs_submit_compressed_read()
633 	comp_bio->bi_private = cb;  in btrfs_submit_compressed_read()
634 	comp_bio->bi_end_io = end_compressed_bio_read;  in btrfs_submit_compressed_read()
642 		if (comp_bio->bi_size)  in btrfs_submit_compressed_read()
645 							comp_bio, 0);  in btrfs_submit_compressed_read()
650 		if (ret || bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0) <  in btrfs_submit_compressed_read()
652 			bio_get(comp_bio);  in btrfs_submit_compressed_read()
654 			ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);  in btrfs_submit_compressed_read()
667 							comp_bio, sums);  in btrfs_submit_compressed_read()
670 			sums += (comp_bio->bi_size + root->sectorsize - 1) /  in btrfs_submit_compressed_read()
673 			ret = btrfs_map_bio(root, READ, comp_bio,  in btrfs_submit_compressed_read()
677 			bio_put(comp_bio);  in btrfs_submit_compressed_read()
679 			comp_bio = compressed_bio_alloc(bdev, cur_disk_byte,  in btrfs_submit_compressed_read()
681 			comp_bio->bi_private = cb;  in btrfs_submit_compressed_read()
682 			comp_bio->bi_end_io = end_compressed_bio_read;  in btrfs_submit_compressed_read()
684 			bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0);  in btrfs_submit_compressed_read()
688 	bio_get(comp_bio);  in btrfs_submit_compressed_read()
690 	ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);  in btrfs_submit_compressed_read()
694 		ret = btrfs_lookup_bio_sums(root, inode, comp_bio, sums);  in btrfs_submit_compressed_read()
698 	ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);  in btrfs_submit_compressed_read()
701 	bio_put(comp_bio);  in btrfs_submit_compressed_read()