[PATCH 6/9] Use proper membar instructions on SPARC

[David Miller]

From: Matt Turner <mattst88 at gmail.com>
Date: Thu, 13 Aug 2009 11:55:42 -0400

> Please review the attached patch. Thanks for the input.

What are those branches for?  (this is retorical, I
know the reason, it's a chip bug workaround)

If there is a reason to add them, you need to document
that reason in either the commit message or comments
in the code.