fs/bcachefs/io_read.c

156 	bch2_data_update_read_done(&op->write, rbio->pick.crc);
266 		? max(pick->crc.compressed_size, pick->crc.live_size)
396 				   rbio->pick.crc.offset)) {
479 	u64 data_offset = rbio->data_pos.offset - rbio->pick.crc.offset;
486 	if (crc_is_compressed(rbio->pick.crc))
500 	    k.k->p.offset > data_offset + rbio->pick.crc.uncompressed_size)
504 			rbio->pick.crc, NULL, &new_crc,
506 			rbio->pick.crc.csum_type)) {
548 	struct bch_extent_crc_unpacked crc = rbio->pick.crc;
549 	struct nonce nonce = extent_nonce(rbio->version, crc);
558 		src->bi_iter.bi_size		= crc.compressed_size << 9;
565 	csum = bch2_checksum_bio(c, crc.csum_type, nonce, src);
566 	if (bch2_crc_cmp(csum, rbio->pick.crc.csum) && !c->opts.no_data_io)
582 	/* Adjust crc to point to subset of data we want: */
583 	crc.offset     += rbio->offset_into_extent;
584 	crc.live_size	= bvec_iter_sectors(rbio->bvec_iter);
586 	if (crc_is_compressed(crc)) {
587 		ret = bch2_encrypt_bio(c, crc.csum_type, nonce, src);
591 		if (bch2_bio_uncompress(c, src, dst, dst_iter, crc) &&
596 		nonce = nonce_add(nonce, crc.offset << 9);
597 		bio_advance(src, crc.offset << 9);
602 		ret = bch2_encrypt_bio(c, crc.csum_type, nonce, src);
616 		 * rbio->crc:
618 		ret = bch2_encrypt_bio(c, crc.csum_type, nonce, src);
648 	bch2_csum_err_msg(&buf, crc.csum_type, rbio->pick.crc.csum, csum);
712 	    crc_is_compressed(rbio->pick.crc) ||
713 	    bch2_csum_type_is_encryption(rbio->pick.crc.csum_type))
715 	else if (rbio->pick.crc.csum_type)
862 		if (pick.crc.compressed_size > orig->bio.bi_vcnt * PAGE_SECTORS)
865 		iter.bi_size	= pick.crc.compressed_size << 9;
874 		bch2_can_narrow_extent_crcs(k, pick.crc);
881 	if (crc_is_compressed(pick.crc) ||
882 	    (pick.crc.csum_type != BCH_CSUM_none &&
883 	     (bvec_iter_sectors(iter) != pick.crc.uncompressed_size ||
884 	      (bch2_csum_type_is_encryption(pick.crc.csum_type) &&
896 		EBUG_ON(crc_is_compressed(pick.crc));
897 		EBUG_ON(pick.crc.csum_type &&
898 			(bvec_iter_sectors(iter) != pick.crc.uncompressed_size ||
899 			 bvec_iter_sectors(iter) != pick.crc.live_size ||
900 			 pick.crc.offset ||
904 		pick.ptr.offset += pick.crc.offset +
907 		pick.crc.compressed_size	= bvec_iter_sectors(iter);
908 		pick.crc.uncompressed_size	= bvec_iter_sectors(iter);
909 		pick.crc.offset			= 0;
910 		pick.crc.live_size		= bvec_iter_sectors(iter);
921 		       pick.crc.compressed_size << 9);
923 			pick.crc.compressed_size << 9;
925 		unsigned sectors = pick.crc.compressed_size;
957 	EBUG_ON(bio_sectors(&rbio->bio) != pick.crc.compressed_size);