if (ret < 0)
break;
ret = btrfs_make_block_group(trans, fs_info, 0,
- BTRFS_BLOCK_GROUP_DATA,
- BTRFS_FIRST_CHUNK_TREE_OBJECTID,
- cur, len);
+ BTRFS_BLOCK_GROUP_DATA, cur, len);
if (ret < 0)
break;
cur += len;
BUG_ON(btrfs_super_bytenr(super) != old_bytenr);
btrfs_set_super_bytenr(super, BTRFS_SUPER_INFO_OFFSET);
- csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
+ csum_tree_block_size(buf, btrfs_csum_sizes[BTRFS_CSUM_TYPE_CRC32], 0);
ret = pwrite(fd, buf->data, BTRFS_SUPER_INFO_SIZE,
BTRFS_SUPER_INFO_OFFSET);
if (ret != BTRFS_SUPER_INFO_SIZE)
goto fail;
fd = open(devname, O_RDWR);
if (fd < 0) {
- error("unable to open %s: %s", devname, strerror(errno));
+ error("unable to open %s: %m", devname);
goto fail;
}
btrfs_parse_features_to_string(features_buf, features);
}
}
btrfs_release_path(&path);
+ if (ret)
+ return ret;
/*
* For HOLES mode (without NO_HOLES), we must ensure file extents
* cover the whole range of the image
}
fd = open(devname, O_RDWR);
if (fd < 0) {
- error("unable to open %s: %s", devname, strerror(errno));
+ error("unable to open %s: %m", devname);
ret = -EIO;
goto free_mem;
}
fsize = lseek(fd, 0, SEEK_END);
- root = open_ctree_fd(fd, devname, 0, OPEN_CTREE_WRITES);
+
+ /*
+ * For rollback, we don't really need to write anything so open it
+ * read-only. The write part will happen after we close the
+ * filesystem.
+ */
+ root = open_ctree_fd(fd, devname, 0, 0);
if (!root) {
error("unable to open ctree");
ret = -EIO;