[PATCH 1/3] mpt2sas: remove the use of writeq, since writeq is not atomic

[Roland Dreier]

On Wed, May 18, 2011 at 11:31 AM, Milton Miller <miltonm at bga.com> wrote:
> So the real question should be why is x86-32 supplying a broken writeq
> instead of letting drivers work out what to do it when needed?

Sounds a lot like what I was asking a couple of years ago :)
http://lkml.org/lkml/2009/4/19/164

But Ingo insisted that non-atomic writeq would be fine:
http://lkml.org/lkml/2009/4/19/167

 - R.