[Libguestfs] [PATCH] Added xfs support for vfs_min_size.

[Richard W.M. Jones]

On Sat, Oct 24, 2015 at 12:59:14PM +0300, Maxim Perevedentsev wrote:
> +int64_t
> +xfs_minimum_size (const char *path)
> +{
> +  CLEANUP_FREE guestfs_int_xfsinfo *info = do_xfs_info (path);
> +
> +  if (info == NULL)
> +    return -1;
> +
> +  // XFS does not support shrinking.
> +  return info->xfs_blocksize * info->xfs_datablocks;
> +}

My spidey sense says .. what happens if this multiplication overflows?
Maybe nothing bad.  Nevertheless, both of these numbers are under
end-user control.

Rest of the patch looks fine to me.

Rich.

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