Subject: Re: [PATCH v3 0/6] atomics: powerpc: Implement relaxed/acquire/release variants of some atomics

From: Peter Zijlstra <[email-masked]>
Date: Tue, 13 Oct 2015 14:27:13 +0200

On Mon, Oct 12, 2015 at 10:14:00PM +0800, Boqun Feng wrote:
 
> The patchset consists of 6 parts:
> 
> 1.	Make xchg, cmpxchg and their atomic_ versions a full barrier
> 
> 2.	Add trivial tests for the new variants in lib/atomic64_test.c
> 
> 3.	Allow architectures to define their own __atomic_op_*() helpers
> 	to build other variants based on relaxed.
> 
> 4.	Implement atomic{,64}_{add,sub,inc,dec}_return_* variants
> 
> 5.	Implement xchg_* and atomic{,64}_xchg_* variants
> 
> 6.	Implement cmpxchg_* atomic{,64}_cmpxchg_* variants
> 
> 
> This patchset is based on current locking/core branch of the tip tree
> and all patches are built and boot tested for little endian pseries, and
> also tested by 0day.
> 

I don't see any immediate problems with this series at this point. Will,
Paul?