[lvm-devel] Add invalid snapshot awareness to snapshot merge support

[Mike Snitzer]

On Fri, Jan 13 2012 at  9:56pm -0500,
Mike Snitzer <snitzer at redhat.com> wrote:

> Prevent an invalid snapshot from being merged via lvconvert.
> Allow an merging snapshot that was invalidated to be removed (useful for
> a snapshot merge that was deferred until next activation but the
> snapshot was invalidated beforehand).

FYI, this patch resolves red hat BZ 761267