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Date: Tue, 13 Oct 2015 14:27:13 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Boqun Feng <boqun.feng@gmail.com>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        Ingo Molnar <mingo@kernel.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Thomas Gleixner <tglx@linutronix.de>,
        Will Deacon <will.deacon@arm.com>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Waiman Long <waiman.long@hp.com>, Davidlohr Bueso <dave@stgolabs.net>
Subject: Re: [PATCH v3 0/6] atomics: powerpc: Implement
 relaxed/acquire/release variants of some atomics
Message-ID: <20151013122713.GS3604@twins.programming.kicks-ass.net>
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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?