On Wed, Oct 24, 2012 at 10:04:47AM +0800, Rock Lee wrote:
> @@ -572,7 +576,7 @@ int btrfs_prepare_device(int fd, char *file, int
> zero_end, u64 *block_count_ret,
> discard_blocks(fd, 0, block_count);
> }
>
> - ret = zero_dev_start(fd);
> + ret = zero_dev_start(fd, block_count);
> if (ret) {
> fprintf(stderr, "failed to zero device start %d\n", ret);
> exit(1);
Please add a separate check for a minimal image size instead, right after
553 block_count = device_size(fd, &st);
554 if (block_count == 0) {
555 fprintf(stderr, "unable to find %s size\n", file);
556 exit(1);
557 }
558 if (max_block_count)
559 block_count = min(block_count, max_block_count);
if (block_count < 2 MB ) {
fprintf(stderr, "Image too small (less than 2MB)");
exit
}
thanks,
david
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