304 	struct undo_context undo_ctx;  in main()  local
370 			       &undo_ctx.undo_file);  in main()
376 	retval = io_channel_read_blk64(undo_ctx.undo_file, 0,  in main()
377 				       -(int)sizeof(undo_ctx.hdr),  in main()
378 				       &undo_ctx.hdr);  in main()
383 	if (memcmp(undo_ctx.hdr.magic, E2UNDO_MAGIC,  in main()
384 		    sizeof(undo_ctx.hdr.magic))) {  in main()
389 		dump_header(&undo_ctx.hdr);  in main()
392 	hdr_crc = ext2fs_crc32c_le(~0, (unsigned char *)&undo_ctx.hdr,  in main()
395 	if (!force && ext2fs_le32_to_cpu(undo_ctx.hdr.header_crc) != hdr_crc) {  in main()
400 	undo_ctx.blocksize = ext2fs_le32_to_cpu(undo_ctx.hdr.block_size);  in main()
401 	undo_ctx.fs_blocksize = ext2fs_le32_to_cpu(undo_ctx.hdr.fs_block_size);  in main()
402 	if (undo_ctx.blocksize == 0 || undo_ctx.fs_blocksize == 0) {  in main()
406 	if (!force && undo_ctx.blocksize > E2UNDO_MAX_BLOCK_SIZE) {  in main()
411 	if (!force && undo_ctx.blocksize < E2UNDO_MIN_BLOCK_SIZE) {  in main()
416 	undo_ctx.super_block = ext2fs_le64_to_cpu(undo_ctx.hdr.super_offset);  in main()
417 	undo_ctx.num_keys = ext2fs_le64_to_cpu(undo_ctx.hdr.num_keys);  in main()
418 	io_channel_set_blksize(undo_ctx.undo_file, undo_ctx.blocksize);  in main()
424 	if (!force && (undo_ctx.hdr.f_incompat || undo_ctx.hdr.f_rocompat)) {  in main()
459 	if (*opt_offset_string || e2undo_has_feature_fs_offset(&undo_ctx.hdr)) {  in main()
461 			offset = ext2fs_le64_to_cpu(undo_ctx.hdr.fs_offset);  in main()
472 	if (!force && check_filesystem(&undo_ctx, channel))  in main()
476 	retval = ext2fs_get_mem(sizeof(struct undo_key_info) * undo_ctx.num_keys,  in main()
477 				&undo_ctx.keys);  in main()
482 	ikey = undo_ctx.keys;  in main()
483 	retval = ext2fs_get_mem(undo_ctx.blocksize, &keyb);  in main()
488 	retval = ext2fs_get_mem(E2UNDO_MAX_EXTENT_BLOCKS * undo_ctx.blocksize,  in main()
496 	keys_per_block = KEYS_PER_BLOCK(&undo_ctx);  in main()
497 	lblk = ext2fs_le64_to_cpu(undo_ctx.hdr.key_offset);  in main()
499 		   undo_ctx.num_keys, keys_per_block, undo_ctx.blocksize);  in main()
500 	for (i = 0; i < undo_ctx.num_keys; i += keys_per_block) {  in main()
504 		retval = io_channel_read_blk64(undo_ctx.undo_file,  in main()
510 				undo_ctx.num_keys = i - 1;  in main()
526 					   undo_ctx.blocksize);  in main()
536 		max_j = undo_ctx.num_keys - i;  in main()
546 			lblk += (ikey->size + undo_ctx.blocksize - 1) /  in main()
547 				undo_ctx.blocksize;  in main()
549 			if (E2UNDO_MAX_EXTENT_BLOCKS * undo_ctx.blocksize <  in main()
558 			retval = io_channel_read_blk64(undo_ctx.undo_file,  in main()
588 	qsort(undo_ctx.keys, undo_ctx.num_keys, sizeof(struct undo_key_info),  in main()
592 	io_channel_set_blksize(channel, undo_ctx.fs_blocksize);  in main()
593 	for (i = 0, ikey = undo_ctx.keys; i < undo_ctx.num_keys; i++, ikey++) {  in main()
594 		retval = io_channel_read_blk64(undo_ctx.undo_file,  in main()
624 	if (!(ext2fs_le32_to_cpu(undo_ctx.hdr.state) & E2UNDO_STATE_FINISHED)) {  in main()
629 	ext2fs_free_mem(&undo_ctx.keys);  in main()
647 	io_channel_close(undo_ctx.undo_file);  in main()