[Patch] Memory fencing fixes

[Jeff Law]

On 02/19/13 00:56, Mike Frysinger wrote:
> On Monday 04 February 2013 16:39:05 Jeff Law wrote:
>> I think this incorporates all the input from the list.  If someone could
>> take a looksie at the ARM stuff it'd be appreciated.  While I think I
>> stitched the bits from Carlos & Joseph together correctly, sanity
>> checking helps.
>
> just style nits below.  common & ia64 part looks good.
Thanks.  Updated appropriately.  I'll give the ARM folks a little more 
time to chime in before I explicitly ping them ;-)

jeff