On Thu, 21 Mar 2013 07:51:49 -0400
James Cloos <cloos@jhcloos.com> wrote:

> >>>>> "MF" == Mike Frysinger <vapier@gentoo.org> writes:
> 
> MF> +SIZE_LIMIT='128'
> 
> The limit probably should be larger, given that nothing which fits into
> one filesystem block will use less space compressed.

While it's usually true btrfs does not store things in blocks and
allocates space in byte ranges. All filesystem (data or meta)
modifications are copy-on-write thus it does not needs "growth holes"
by design.

-- 

  Sergei