[RESEND, tip/locking/core, v5, 1/6] powerpc: atomic: Make _return atomics and *{cmp}xchg fully ordered

[Boqun Feng]

On Mon, Nov 02, 2015 at 09:22:40AM +0800, Boqun Feng wrote:
> > On Tue, Oct 27, 2015 at 11:06:52AM +0800, Boqun Feng wrote:
> > > To summerize:
> > > 
> > > patch 1(split to two), 3, 4(remove inc/dec implementation), 5, 6 sent as
> > > powerpc patches for powerpc next, patch 2(unmodified) sent as tip patch
> > > for locking/core.
> > > 
> > > Peter and Michael, this works for you both?
> > > 
> > 
> > Thoughts? ;-)
> > 
> 
> Peter and Michael, I will split patch 1 to two and send them as patches
> for powerpc next first. The rest of this can wait util we are on the
> same page of where they'd better go.
> 

I'm about to send patch 2(adding trivial tests) as a patch for the tip
tree, and rest of this series will be patches for powerpc next.

Will, AFAIK, you are currently working on variants on arm64, right? I
wonder whether you depend on patch 3 (allow archictures to provide
self-defined __atomic_op_*), if so I can also send patch 3 as a patch
for tip tree and wait until it merged into powerpc next to send the
rest. 

Thanks and Best Regards,
Boqun
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