[JAUNTY SRU] UBUNTU: SAUCE: added memory barrier to prevent a reference counter leak.

[manoj.iyer at canonical.com]

Also note this article that talks about this bug behaviour on disks with 
write back cache.

http://sr5tech.com/write_back_cache_experiments.htm

Cheers
--- manjo

On Thu, 23 Jul 2009, Stefan Bader wrote:

> I think this should be save to add without causing regressions. And I think 
> you said some problems were solved by that. Just for general understanding, 
> if this really addresses one of the problems, what is the reason this is only 
> a Redhad erata and not gone upstream?
>